WO2012011330A1 - Door opening/closing mechanism and refrigerator - Google Patents
Door opening/closing mechanism and refrigerator Download PDFInfo
- Publication number
- WO2012011330A1 WO2012011330A1 PCT/JP2011/063317 JP2011063317W WO2012011330A1 WO 2012011330 A1 WO2012011330 A1 WO 2012011330A1 JP 2011063317 W JP2011063317 W JP 2011063317W WO 2012011330 A1 WO2012011330 A1 WO 2012011330A1
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- WO
- WIPO (PCT)
- Prior art keywords
- door
- cam
- groove
- closing mechanism
- hinge
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
- F25D2323/024—Door hinges
Definitions
- the present invention relates to a double door opening / closing mechanism that opens and closes a door alternatively from two directions, and a refrigerator including the same.
- the door opening / closing mechanism includes a pair of cam mechanisms disposed symmetrically at opposite ends of the device main body and the door.
- the cam mechanism is provided with a hinge pin that forms a pivot shaft of the door in the device body, and the door is provided with a groove cam that engages and guides the hinge pin.
- the groove cam is composed of a continuous first groove portion and second groove portion.
- the first groove portion is formed so as to be inclined in a plane perpendicular to the pivot shaft with one end opened.
- the second groove portion is continuous with the other end of the first groove portion and extends in a direction away from the open end of the first groove portion.
- the device body is provided with a rib having a guide surface composed of a cylindrical surface coaxial with the hinge pin.
- the door is provided with a boss having a cylindrical surface that slides on the guide surface of the rib.
- both cam mechanisms take the first locking position in which the hinge pin is arranged at the connecting portion between the first groove and the second groove.
- the one hinge pin moves relative to the open end in the first groove.
- the other hinge pin relatively moves in the second groove portion in a direction away from the first groove portion.
- the hinge pin of one cam mechanism is disengaged from the groove cam, and the other cam mechanism takes the second locking position in which the hinge pin is arranged at the end of the second groove portion.
- the boss is inscribed in the rib and slides on the guide surface of the rib.
- the cam mechanism rotatably supports the hinge pin at the second locking position, and the sliding of the hinge pin is regulated by the sliding contact between the rib and the boss, and the door can be rotated about the hinge pin as a pivot shaft.
- the cam mechanism is arranged symmetrically, the door can be opened from the other by the same operation.
- the left and right hinge pins arranged above are respectively formed by insert molding or the like on the hinge pin forming member divided into the left and right.
- the ceiling plate is screwed to the upper surface of the device body, and the left and right hinge pin forming members are screwed to the ceiling plate.
- the left and right hinge pins are integrally formed on a hinge angle having an L-shaped cross section.
- the groove cam is formed on a cam forming member that is screwed to the upper and lower surfaces of the door.
- the lower hinge angle is screwed to the front surface below the opening.
- the groove cam on the lower surface of the door is engaged with the lower hinge pin, and the door is installed on the hinge angle with a predetermined gap.
- the hinge pin is engaged with the groove cam on the upper surface of the door, and the position of the ceiling plate or the hinge pin forming member is adjusted in the front-rear direction and the left-right direction. Then, the ceiling plate and the hinge pin forming member are screwed.
- the ceiling plate is screwed with a spacer interposed between the ceiling plate and the upper surface of the device body.
- the cam forming member is screwed with a spacer interposed between the cam forming member and the upper surface of the door.
- JP 2006-132838 A (pages 5-7, FIG. 1) Japanese Patent Laid-Open No. 2001-159268 (pages 5-7, FIG. 1)
- the hinge pin and the groove cam of one cam mechanism are disengaged when one of the doors is opened, and the engaged state is maintained when the other door is opened. For this reason, the groove cam is formed on the surface of the door so that the hinge pin can be engaged and disengaged.
- the groove cam is formed to be exposed on the surface of the device main body.
- the double door opening / closing mechanism that opens and closes the opening provided in the lower part of the device main body can be configured by providing cam mechanisms similar to the above on the left and right ends of the door.
- a hinge pin that engages with the groove cam on the upper surface of the door is provided on the hinge pin forming member, and the hinge pin forming member can be supported by a support member having an L-shaped cross section that is attached to the front surface of the apparatus main body.
- An object of the present invention is to provide a door opening / closing mechanism and a refrigerator that can improve usability and aesthetics. Another object of the present invention is to provide a door opening / closing mechanism that can reduce the number of manufacturing steps and a refrigerator including the door opening / closing mechanism.
- the present invention provides a door that covers an opening of a device main body, alternatively from two directions by a pair of cam mechanisms that are symmetrically disposed at opposite ends of the device main body and the door.
- the cam mechanism is provided on one of the device main body and the door to form a pivot shaft of the door, and on the other of the device main body and the door.
- a groove cam for engaging and guiding the hinge pin, and a groove cam shutter that covers the groove cam when the door is opened and retracts from the groove cam when the door is closed is provided. Yes.
- the door is opened and closed alternatively from two directions by the engagement and disengagement of the hinge pin and the groove cam of the pair of cam mechanisms provided at both ends of the door.
- the groove cam shutter is retracted from the groove cam, and the hinge pin and the groove cam of both cam mechanisms are engaged to maintain the closed state of the door.
- the one hinge pin is detached from the groove cam.
- the groove cam is covered by the groove cam shutter.
- the cam mechanisms on both sides take a symmetric first locking position when the door is closed, and both the cam mechanisms open the one of the doors.
- the door is slid from the open side to the shaft side, and the other cam mechanism takes a second locking position, and the door is slid at the second locking position and supported rotatably. .
- both cam mechanisms take the first locking position in which the hinge pin is arranged at a predetermined position of the groove cam with the door closed. As a result, the door is prevented from falling off and the door is closed.
- the one cam mechanism is disengaged by the relative movement of the hinge pin in the groove cam, and in the other cam mechanism, the hinge pin is relatively moved in the groove cam and takes the second locking position.
- the cam mechanism rotatably supports the hinge pin at the second locking position and the sliding of the hinge pin is restricted, and the door can be rotated about the hinge pin as a pivot shaft.
- a rib having a guide surface formed along an arc concentric with the hinge pin, and sliding on the guide surface at a second locking position, A boss for regulating the slide, wherein the groove cam shutter is rotatably supported and urged in a direction to cover the groove cam, and retracts from the groove cam by contact with the hinge pin or the rib. It is characterized by.
- the one cam mechanism is disengaged from the hinge pin and the groove cam, and the groove cam shutter is biased to cover the groove cam.
- the other cam mechanism takes the second locking position, and the sliding of the hinge pin is restricted by the contact between the rib and the boss.
- the one groove cam shutter comes into contact with the hinge pin or the rib and rotates against the urging force.
- the groove cam is exposed, the hinge pin and the groove cam are engaged, and the cam mechanism is arranged at the first locking position.
- the present invention is characterized in that in the door opening / closing mechanism configured as described above, the hinge pin is provided in the device main body, and the groove cam and the groove cam shutter are provided on an upper surface of the door.
- the present invention is characterized in that, in the door opening / closing mechanism having the above-described configuration, the hinge pin is provided on the lower surface of the door, and the groove cam and the groove cam shutter are provided in the device main body.
- the cam mechanism may be disposed between both of the hinge pins, and the first engagement protrusion formed so as to face a cylindrical surface concentric with both of the hinge pins;
- a second engaging protrusion for slidingly guiding the first engaging protrusion; and a relief groove provided around the second engaging protrusion to avoid interference with the first engaging protrusion;
- a relief groove shutter is provided that covers the relief groove when opened and retracts from the relief groove when the door is closed.
- the escape groove shutter is retracted from the escape groove with the door closed, and the first engagement protrusion is arranged in the escape groove.
- the hinge pin When one of the doors begins to open, the hinge pin relatively moves in the groove cam, and the first engaging protrusion slides with the second engaging protrusion to move relatively in the escape groove.
- the hinge pin When the door is opened, the hinge pin is disengaged from the groove cam, and the first engagement protrusion is retracted from the escape groove. At this time, the escape groove is covered with the escape groove shutter.
- the escape groove shutter is rotatably supported and biased in a direction to cover the escape groove, and the escape groove is brought into contact with the first engagement protrusion. It is characterized by evacuating from. According to this configuration, when the door is closed, the escape groove shutter comes into contact with the first engagement protrusion and rotates against the urging force. As a result, the escape groove is exposed and the first engagement protrusion and the second engagement protrusion slide.
- the present invention provides a door opening / closing mechanism that opens and closes the door that covers the opening of the device main body alternately from the left and right by a pair of cam mechanisms that are symmetrically arranged on the left and right ends of the device main body and the door.
- a hinge angle for integrally holding the left and right hinge pins forming the pivot shaft of the door The first mounting portion screwed to the front surface above the opening and a first protruding portion protruding forward from the first mounting portion, the hinge angle installed on the upper surface of the first protruding portion from above A first support member to be screwed; A second mounting portion that is arranged on the outer side in the left-right direction of the first protruding portion and screwed to the front surface above the opening, and a second protruding portion that protrudes forward from the second mounting portion; A second support member for screwing the hinge angle contacting the lower surface of the second protrusion to the second protrusion; Groove cams that are respectively arranged on the left and right ends of the upper surface of the door and engage with the hinge pins to guide the door; It is characterized by having.
- the door is opened and closed alternatively from two directions by the engagement and disengagement of the hinge pin and the groove cam of the pair of cam mechanisms provided at the left and right ends of the door.
- the left and right hinge pins arranged above the door are held together by a hinge angle.
- the first support member is attached to the device body by screwing the first attachment portion on the front surface above the opening.
- the hinge angle is installed on the first protrusion of the first support member, and is screwed to the first protrusion by adjusting the position in the left-right direction and the front-rear direction.
- the hinge angle is screwed with a spacer interposed between the first protrusion and the hinge angle.
- the second support member is disposed at a position close to the hinge pin outside the first protrusion, and the second protrusion contacts the upper surface of the hinge angle.
- the second attachment portion is screwed to the front surface below the opening, and the second protrusion and the hinge angle are screwed. The axial movement of the hinge pin, such as when a foreign object enters the groove cam, is suppressed by the second support member.
- the present invention is characterized in that, in the door opening / closing mechanism having the above-described configuration, a cam forming member on which the groove cam is formed is screwed to the upper surface of the door. According to this configuration, when the gap between the upper surface of the door and the lower surface of the hinge angle is larger than a predetermined value, the cam forming member is screwed with the spacer interposed between the upper surface of the door and the cam forming member.
- the present invention is characterized in that in the door opening / closing mechanism having the above-described configuration, a spacer is disposed between the upper surface of the door and the cam forming member.
- a spacer is disposed between the first projecting portion and the hinge angle.
- the first attachment portion includes an extension portion that extends behind the second attachment portion and extends to the outside of the second support member, and a front side from the end portion of the extension contact portion. It is characterized in that it is formed in an L shape in a plan view having a facing portion that protrudes in the vicinity and faces the hinge angle in the vicinity.
- the extending portion of the first mounting portion extends outward along the front surface of the device main body behind the second mounting portion.
- the facing portion of the first mounting portion protrudes forward from the end of the extending portion, and the first mounting portion is formed in an L shape in plan view by the extending portion and the facing portion.
- the facing portion is disposed at a position close to the hinge pin on the outer side of the second support member, and abuts against the hinge angle when the hinge pin rises to restrict the rise of the hinge pin.
- a groove cam shutter that covers the groove cam when the door is opened and retracts from the groove cam when the door is closed is provided.
- the groove cam shutter when the door is closed, the groove cam shutter is retracted from the groove cam, and the hinge pin and the groove cam of both cam mechanisms are engaged to keep the door closed.
- the one hinge pin is detached from the groove cam.
- the groove cam is covered by the groove cam shutter.
- the refrigerator of the present invention is characterized by including the door opening / closing mechanism having the above-described configuration.
- the door is selectively opened and closed from two directions by a pair of cam mechanisms in which the hinge pin and the groove cam engage, and the groove cam is covered when the door is opened and the groove cam when the door is closed. Since the groove cam shutter for retreating from is provided, foreign matter can be prevented from entering the groove cam when the door is opened. Therefore, the malfunction which cannot close a door can be avoided, and the usability of the apparatus provided with the door opening / closing mechanism can be improved. Further, since the groove cam is not visually recognized when the door is opened, the aesthetics of the device provided with the door opening / closing mechanism can be improved.
- the first mounting portion of the first support member is screwed to the front surface above the opening, and the hinge angle installed on the upper surface of the first protruding portion protruding forward from the first mounting portion is viewed from above. Since it is screwed, the hinge angle can be moved in the left-right direction and the front-rear direction on the first protrusion, and can be easily adjusted in position and fixed. At this time, the hinge angle can be easily adjusted in the vertical direction by sandwiching the spacer between the first protrusion and the hinge angle. Therefore, it is possible to reduce the number of manufacturing steps for the door opening / closing mechanism.
- the hinge angle abuts on the lower surface of the second protrusion of the second support member disposed outside the first protrusion and the second support member and the hinge angle are screwed, the second support member can be easily attached. It can be attached and the hinge angle can be reinforced near the hinge pin. Therefore, the movement of the hinge pin in the axial direction when a foreign matter enters the groove cam can be suppressed.
- the front view which shows the refrigerator of embodiment of this invention The front view which shows the main-body part of the refrigerator of embodiment of this invention.
- the perspective view which shows the refrigerator of embodiment of this invention The front view which shows the attachment state of the hinge angle above the freezer compartment of the refrigerator of embodiment of this invention
- the top view which shows the attachment state of the hinge angle above the freezer compartment of the refrigerator of embodiment of this invention The side view which shows the attachment state of the hinge angle above the freezer compartment of the refrigerator of embodiment of this invention BB sectional view of FIG. CC sectional view of FIG. DD sectional view of FIG.
- the top view which shows the cam mechanism above the refrigerator compartment door of the refrigerator of embodiment of this invention AA sectional view of FIG.
- the top view explaining the state which opened the refrigerator compartment door of the refrigerator of embodiment of this invention from the right side The top view explaining the state which opened the refrigerator compartment door of the refrigerator of embodiment of this invention from the right side
- FIG. 1 is a front view showing a refrigerator provided with a door opening / closing mechanism according to an embodiment.
- a refrigerator compartment 5 is formed in the upper part of a main body 2 (equipment main body) made of a heat insulating box, and a freezer compartment 6 is formed in the lower part.
- the opening 5a (see FIG. 2) on the front surface of the refrigerator compartment 5 is opened and closed by the refrigerator compartment door 3.
- the opening 6 a (see FIG. 2) on the front surface of the freezer compartment 6 is opened and closed by the freezer compartment door 4.
- the refrigerator compartment door 3 has handles 3a and 3b at the left and right ends, and can be opened and closed alternatively from the left and right directions.
- the freezer compartment door 4 has handles 4a and 4b at the left and right ends, and can be opened and closed alternatively from the left and right directions.
- FIG. 2 is a front view showing the main body 2 of the refrigerator 1.
- FIG. 3 is a perspective view showing a state where the refrigerator compartment door 3 of the refrigerator 1 is opened.
- a ceiling plate 7 extending in the left-right direction is disposed on the upper surface of the main body 2.
- Hinge pin forming members 8 are arranged on the left and right ends of the ceiling plate 7 respectively.
- the hinge pin forming member 8 is integrally formed with a metal hinge pin 21 by insert molding or the like.
- a hinge angle 9 having an L-shaped cross section extending in the left-right direction is disposed on the front surface below the opening 5a.
- Metal hinge pins 21 are integrally formed on the left and right ends of the hinge angle 9 by insert molding or the like.
- the pivot pin of the refrigerator compartment door 3 is formed by the hinge pin 21 provided on the ceiling plate 7 and the hinge angle 9.
- a hinge angle 10 extending in the left-right direction is disposed on the front surface above the opening 6a.
- Metal hinge pins 21 are integrally formed on the left and right ends of the hinge angle 10 by insert molding or the like.
- the hinge angle 10 is supported by a first support member 50 and a second support member 60 that are provided separately on the left and right.
- a hinge angle 11 having an L-shaped cross section extending in the left-right direction is disposed on the front surface below the opening 6a.
- Metal hinge pins 21 are integrally formed on the left and right ends of the hinge angle 11 by insert molding or the like.
- a pivot shaft of the freezer compartment door 4 is formed by hinge pins 21 provided at the hinge angles 10 and 11.
- Cam forming members 30 (see FIG. 11) having groove cams 31 (see FIG. 11) that engage with the hinge pins 21 are attached to the upper and lower surfaces of the refrigerator compartment door 3 and the upper and lower surfaces of the freezer compartment door 4.
- the cam mechanism 12 including the hinge pin 21 and the groove cam 31 is provided symmetrically on both left and right ends of the refrigerator compartment door 3 and the freezer compartment door 4.
- a pair of left and right cam mechanisms 12 provided on the upper and lower sides of the refrigerator compartment door 3 respectively disengage the refrigerator compartment door 3 and the main body 2 to form a double door opening / closing mechanism that opens and closes the refrigerator compartment door 3.
- a pair of left and right cam mechanisms 12 provided on the upper and lower sides of the freezer compartment door 4 respectively disengage the freezer compartment door 4 and the main body portion 2 to constitute a double-open door open / close mechanism that opens and closes the freezer compartment door 4.
- FIG. 4, 5, and 6 are a front view, a top view, and a side view showing details of the mounting state of the hinge angle 10 above the freezer compartment door 4.
- FIG. 8, and FIG. 9 show a BB sectional view, a CC sectional view, and a DD sectional view of FIG. 5, respectively.
- the hinge angle 10 is supported by the first support member 50 and the second support member 60.
- the first support member 50 has an L-shaped side surface cross section, and includes a first attachment portion 51 attached to the front surface of the main body portion 2 and a first protrusion portion 54 protruding forward from the lower end of the first attachment portion 51.
- the second support member 60 has a side cross-section formed in an L shape, and includes a second attachment portion 61 attached to the front surface of the main body portion 2 and a second protrusion portion 62 protruding forward from the lower end of the second attachment portion 61.
- the second support member 60 is attached to the outside of the first protrusion 54 in the left-right direction, and is disposed between the first protrusion 54 and the hinge pin 21. Thereby, the 1st protrusion part 54 is arrange
- the first mounting part 51 is provided with a through hole 51a, and the first support member 50 is screwed to the main body part 2 by a screw 51b inserted through the through hole 51a.
- a screw hole 54 a is provided in the first protrusion 54, and the hinge angle 10 is installed on the upper surface of the first protrusion 54.
- the hinge angle 10 is provided with a through hole 10a at a position corresponding to the screw hole 54a.
- the hinge angle 10 is screwed to the first support member 50 by a screw 54b inserted from above into the through hole 10a.
- the through hole 10a is formed sufficiently large with respect to the male screw portion of the screw 54b.
- the first mounting portion 51 is provided with an extending portion 52 extending in the left-right direction along the front surface of the main body portion 2.
- the extended portion 52 extends to the outside of the second support member 60 through the back of the second mounting portion 61, and an opposing portion 55 that protrudes forward is provided at the end of the extended portion 52.
- the 1st attachment part 51 is formed in planar view L shape.
- first mounting portion 51 is provided with facing portions 56 and 57 that protrude forward from the lower ends on both sides of the first protruding portion 54.
- the facing portions 55, 56, and 57 face each other close to the upper surface of the hinge angle 10.
- a through hole (not shown) is provided in the second mounting portion 61, and the second support member 60 is screwed to the main body portion 2 by a screw 61b inserted through the through hole.
- the screw 61b passes through a through hole (not shown) provided in the hinge angle 9, and fastens the second support member 60 and the hinge angle 9 together.
- the 2nd attaching part 61 can be arrange
- a screw hole 62 a is provided in the second projecting portion 62, and the hinge angle 10 is disposed in contact with the lower surface of the second projecting portion 62.
- the hinge angle 10 is provided with a through hole 10b at a position corresponding to the screw hole 62a.
- the hinge angle 10 is screwed to the second support member 60 by a screw 62b inserted from below into the through hole 10b.
- the through-hole 10b is formed sufficiently large with respect to the male screw portion of the screw 62b.
- FIG. 10 is a top view showing the cam mechanism 12 above the freezer compartment door 4 and shows a state in which the freezer compartment door 4 is closed.
- FIG. 11 is a cross-sectional view taken along the line AA in FIG.
- the cam mechanism 12 below the freezer compartment door 4 is similarly configured, and the upper and lower cam mechanisms 12 of the refrigerator compartment door 3 are similarly configured.
- the cam mechanisms 12 arranged at the left and right end portions include a hinge pin 21 provided on the hinge angle 10, a rib 24, a first engagement protrusion 25 (each indicated by hatching in the figure), and a groove provided in the freezer compartment door 4.
- a cam 31, a boss 34, and a second engagement protrusion 35 are provided.
- the ribs 24 are formed in an arch shape by resin molding and are arranged around the hinge pins 21.
- a guide surface 24 a made of a cylindrical surface concentric with the hinge pin 21 is formed on the inner surface of the rib 24.
- the guide surface 24a of the rib 24 may be formed by a large number of pins and protrusions, and the envelope surface may be formed to be a cylindrical surface concentric with the hinge pin 21. In other words, the guide surface 24a only needs to be formed along an arc concentric with the hinge pin 21.
- the first engagement protrusion 25 is disposed between the left and right hinge pins 21.
- the first engaging protrusion 25 is provided with a cylindrical surface 25a concentric with the nearer hinge pin 21 and a cylindrical surface 25b concentric with the farther hinge pin 21 facing each other.
- the groove cam 31, the boss 34, and the second engagement protrusion 35 are formed by a cam forming member 30 integrally molded with resin.
- the cam forming member 30 is screwed onto the upper surface cover 4 c of the freezer compartment door 4.
- the groove cam 31 has a first groove portion 32 and a second groove portion 33 which are engaged with the hinge pin 21 and are continuous.
- the first groove portion 32 is formed to be inclined so that the main body portion 2 side is opened and the open end faces inward in a plane perpendicular to the pivot shaft.
- the second groove portion 33 continues to the end opposite to the open end of the first groove portion 32, bends outward from the first groove portion 32, and extends in a direction away from the open end of the first groove portion 32.
- the boss 34 has a cylindrical surface 34 a in which the second groove 33 is recessed and slides on the guide surface 24 a of the rib 24. Further, on the peripheral surface of the boss 34, an escape portion 34b (see FIG. 12) for avoiding interference with the rib 24 at a first locking position described later is provided.
- the peripheral surface of the boss 34 may be formed by a large number of pins and protrusions. That is, you may form so that the enveloping surface of many pins and protrusions which form the peripheral surface of the boss
- hub 34 may become a cylindrical surface.
- the second engagement protrusion 35 has sliding surfaces 35a and 35b that slide with the cylindrical surfaces 25a and 25b of the first engagement protrusion 25, respectively.
- a relief groove 36 that avoids interference with the first engagement protrusion 25 is recessed around the second engagement protrusion 35.
- a shutter support portion 40 disposed above the cam forming member 30 is attached to the upper surface cover 4c.
- the shutter support portion 40 has an opening 40a from which the groove cam 31 and the boss 34 are exposed, and an opening 40b from which the second engagement protrusion 35 and the escape groove 36 are exposed.
- the hinge pin 21 and the rib 24 engage with the groove cam 31 and the boss 34 through the opening 40a, respectively.
- the first engagement protrusion 25 engages with the second engagement protrusion 35 through the opening 40b.
- the groove support shutter 40 is provided with a groove cam shutter 41 and a relief groove shutter 43 that open and close the openings 40a and 40b, respectively.
- the groove cam shutter 41 is pivotally supported on the shutter support portion 40 by a shaft portion 41a, and is biased in a direction to close the opening 40a by a torsion spring 42 disposed on the shaft portion 41a.
- the groove cam shutter 41 rotates between a position where the opening 40 a is closed to cover the groove cam 31 and a position where the opening 40 a is opened and retracted from the groove cam 31.
- the escape groove shutter 43 is pivotally supported on the shutter support portion 40 by a shaft portion 43a, and is biased in a direction to close the opening 40b by a torsion spring 44 disposed on the shaft portion 43a.
- the escape groove shutter 43 rotates between a position where the opening 40b is closed and the escape groove 36 is covered, and a position where the opening 40b is opened and the escape groove 36 is retracted.
- the shutter support portion 40 is formed with stoppers 47 and 48 that project downward when the groove cam shutter 41 and the escape groove shutter 43 are closed.
- the lower hinge angle 9 is first screwed to the lower front surface of the opening 5a.
- the groove cam 31 on the lower surface of the refrigerator compartment door 3 is engaged with the lower hinge pin 21, and the refrigerator compartment door 3 is installed on the hinge angle 9 with a predetermined gap.
- the hinge pin 21 is engaged with the groove cam 31 on the upper surface of the refrigerator compartment door 3, and the position of the ceiling plate 7 or the hinge pin forming member 8 is adjusted in the front-rear direction and the left-right direction. Then, the ceiling plate 7 and the hinge pin forming member 8 are screwed.
- the gap between the refrigerator compartment door 3 and the lower surface of the hinge pin forming member 8 is smaller than a predetermined value, a spacer is sandwiched between the ceiling plate 7 and the upper surface of the main body 2.
- the ceiling plate 7 is screwed by adjusting the position on the upper surface of the main body 2 with a spacer interposed therebetween.
- the cam forming member 30 is screwed with a spacer interposed between the cam forming member 30 and the upper surface cover of the refrigerator compartment door 3. Is done. Accordingly, the distance between the upper and lower hinge pins 21 and the distance between the upper and lower groove cams 31 can be maintained within a predetermined range, and the refrigerator compartment door 3 can be smoothly guided.
- the lower hinge angle 11 is first screwed to the lower front surface of the opening 6a.
- the first mounting portion 51 of the first support member 50 is screwed to the front surface above the opening 6a with a screw 51b.
- the groove cam 31 on the lower surface of the freezer compartment door 4 is engaged with the lower hinge pin 21, and the freezer compartment door 4 is installed on the hinge angle 11 with a predetermined gap.
- the hinge angle 10 is installed on the first protrusion 54 of the first support member 50.
- the first projecting portion 54 is disposed at a position away from the hinge pin 21, and interference with the cam mechanism 12 is avoided.
- the hinge angle 10 is adjusted in the front-rear direction and the left-right direction so that the hinge pin 21 engages with the groove cam 31 on the upper surface of the freezer compartment door 4. Then, the hinge angle 10 is screwed to the first projecting portion 54 of the first support member 50 from above by screws 54b.
- a spacer (not shown) is sandwiched between the hinge angle 10 and the upper surface of the first protrusion 54.
- the hinge angle 10 is screwed by adjusting the position on the first protrusion 54 with the spacer interposed therebetween.
- the cam former 30 is screwed with a spacer between the cam former 30 and the upper surface cover 4c of the freezer door 4. Is done.
- the refrigerator compartment door 4 is opened with one hinge pin 21 as a pivot, and the second protrusion 62 of the second support member 60 is installed on the hinge angle 10.
- the second support member 60 abuts the second mounting portion 61 against the hinge angle 9 of the refrigerator compartment door 3 and is temporarily fixed to the hinge angle 10 from below by a screw 62b.
- the screw 62 b is finally tightened, and the second projecting portion 62 is screwed to the hinge angle 10.
- the refrigerator compartment door 4 is opened with the other hinge pin 21 as a pivot, and the second support member 60 is similarly attached.
- the hinge angle 10 is supported by the second support member 60 at a position close to the hinge pin 21. Thereby, the movement of the hinge pin 21 in the axial direction can be suppressed.
- a through hole may be provided in the second projecting portion 62
- a screw hole may be provided in the hinge angle 10
- the second projecting portion 62 and the hinge angle 10 may be screwed from above with a screw 62b.
- the cam mechanisms 12 on both sides are disposed at the first locking position shown in FIG. That is, the left and right hinge pins 21 are disposed at the connecting portion between the first groove portion 32 and the second groove portion 33. Further, the relief portion 34 b (see FIG. 12) of the boss 34 is disposed along the guide surface 24 a of the rib 24.
- the hinge pin 21 Since the first groove portion 32 is inclined with respect to the front-rear direction in a plane perpendicular to the pivot shaft, the hinge pin 21 is not detached from the open ends of the left and right first groove portions 32. Accordingly, the freezer compartment door 41 can be prevented from falling off.
- the groove cam shutter 41 contacts the rib 24 and opens the opening 40a of the shutter support portion 40 against the urging force of the torsion spring 42.
- the hinge pin 21 is engaged with the groove cam 31.
- the escape groove shutter 43 abuts on the first engagement protrusion 25 and opens the opening 40 b of the shutter support portion 40 against the urging force of the torsion spring 44.
- the first engagement protrusion 25 is disposed in the escape groove 36.
- the first groove portion 32 has an open end inclined toward the inside of the freezer compartment door 4, and the second groove portion 33 extends outward from a connecting portion with the first groove portion 32.
- the left hinge pin 21 is relatively moved outward in the second groove 33 in a direction away from the first groove 32. To do. As a result, the freezer compartment door 4 slides from the left shaft side to the right open side while rotating.
- the left hinge pin 21 reaches the closed end of the second groove 33, and the cam mechanism 12 is arranged at the second locking position.
- the cylindrical surface 34 a of the left boss 34 starts sliding with the guide surface 24 a of the rib 24.
- the movement of the freezer compartment door 4 in the substantially front-rear direction is restricted by the engagement of the hinge pin 21 and the second groove portion 33, and the freezer compartment door 4 in the substantially left-right direction is engaged by the engagement of the boss 34 and the rib 24. Movement is restricted. Accordingly, the cam mechanism 12 slides the freezer compartment door 4 at the second locking position and supports it freely.
- the cylindrical surface 25b of the first locking member 25 on the right side and the sliding surface 35b of the second locking member 35 slide, and the cylindrical surface 25a of the first locking member 25 on the left side and the second locking member.
- the sliding surface 35a of 35 slides.
- the right groove cam shutter 41 and the escape groove shutter 43 close the openings 40a and 40b by the urging forces of the torsion springs 42 and 44, respectively, and are locked by the stoppers 47 and 48. Accordingly, the groove cam 31 and the boss 34 are covered by the right groove cam shutter 41, and the second engagement protrusion 35 and the escape groove 36 are covered by the escape groove shutter 43.
- the freezer compartment door 4 When the freezer compartment door 4 is further opened, the engagement between the first engagement protrusion 25 and the second engagement protrusion 35 on the left side is released as shown in FIG. Then, the freezer compartment door 4 is rotated by the engagement between the second groove 33 and the hinge pin 21 and the engagement between the boss 34 and the rib 24. At this time, the left escape groove shutter 43 closes the opening 40 b by the urging force of the torsion spring 44 and is locked by the stopper 48. Accordingly, the second engagement protrusion 35 and the escape groove 36 are covered by the left escape groove shutter 43.
- the left and right cam mechanisms 12 perform the reverse operation.
- the groove cam shutter 41 starts to be opened by contact with the hinge pin 21, is further opened by contact with the rib 24, and retracts from the groove cam 31.
- the escape groove shutter 43 is opened in contact with the first engagement protrusion 25 and retracts from the escape groove 36.
- the left and right cam mechanisms 12 change symmetrically with the above.
- the doors are opened and closed alternatively from two directions by the pair of cam mechanisms 12 in which the hinge pin 21 and the groove cam 31 are engaged, and the door is opened. Since the groove cam shutter 41 that covers the groove cam 31 and retracts from the groove cam 31 when the door is closed is provided, foreign matter can be prevented from entering the groove cam 31 when the door is opened. Therefore, the malfunction which cannot close a door can be avoided, and the usability of the refrigerator 1 provided with the door opening / closing mechanism can be improved. Moreover, since the groove cam 31 is not visually recognized when the door is opened, the aesthetics of the refrigerator 1 can be improved.
- the groove cam 31 is provided on the upper surface of the refrigerator compartment door 4 or the freezer compartment door 6, foreign matter easily enters the groove cam 31 and is easily visible. Therefore, when the hinge pin 21 is provided in the main body 2 (equipment main body) and the groove cam 31 and the groove cam shutter 41 are provided on the upper surface of the door, the usability and aesthetics of the refrigerator 1 can be further improved.
- the cam mechanisms 12 on both sides take a symmetric first locking position, and when opening one of the doors, the door is slid from the shaft side to the open side by both cam mechanisms 12, and the other side
- the cam mechanism 12 takes the second locking position, and the door is slid at the second locking position to support it rotatably. Accordingly, it is possible to easily realize a door opening / closing mechanism that opens and closes the door alternatively from two directions.
- the groove cam shutter includes a rib 24 having a guide surface 24a along a concentric arc concentric with the hinge pin 21 and a boss 34 that slides on the guide surface 24a at the second locking position to restrict sliding of the hinge pin 21.
- 41 is rotatably supported and urged in a direction to cover the groove cam 31 and retracts from the groove cam 31 by contact with the hinge pin 21 or the rib 24. Thereby, the groove cam shutter 41 that covers the groove cam 31 and retracts from the groove cam 31 can be easily realized.
- a first engagement protrusion 25 having cylindrical surfaces 25 a and 25 b concentric with both hinge pins 21, a second engagement protrusion 35 for slidingly guiding the first engagement protrusion 25, and a second engagement protrusion 35 It has a relief groove 36 that is recessed in the periphery and avoids interference with the first engagement protrusion 25, covers the relief groove 36 when the door is opened, and retreats from the relief groove 36 when the door is closed.
- An escape groove shutter 43 is provided.
- the escape groove 36 may be formed in a sufficiently wide range with respect to the first engagement protrusion 25 so that the door can be closed even if foreign matter enters the escape groove 36.
- the escape groove shutter 43 is rotatably supported and urged in a direction to cover the escape groove 36, and retracts from the escape groove 36 by contact with the first engagement protrusion 25. Thereby, the escape groove shutter 43 which covers the escape groove 36 and retracts from the escape groove 36 can be easily realized.
- the first mounting portion 51 of the first support member 50 is screwed to the front surface above the opening 6 a and is installed on the upper surface of the first protruding portion 54 that protrudes forward from the first mounting portion 51.
- the hinge angle 10 is screwed from above. Accordingly, the hinge angle 10 can be easily adjusted in position and fixed by moving the hinge angle 10 in the left-right direction and the front-rear direction on the first protrusion 54. At this time, by interposing a spacer between the first protrusion 54 and the hinge angle 10, the gap between the lower surface of the hinge angle 10 and the upper surface of the freezer compartment door 4 can be easily widened and the position can be adjusted. Therefore, it is possible to reduce the number of manufacturing steps for the door opening / closing mechanism.
- the hinge angle 10 abuts on the lower surface of the second protrusion 62 of the second support member 60 disposed outside the first protrusion 54, and the second support member 60 and the hinge angle 10 are screwed. 2
- the support member 60 can be easily attached, and the hinge angle 10 can be reinforced in the vicinity of the hinge pin 21. Therefore, the axial movement of the hinge pin 21 when a foreign object enters the groove cam 31 can be suppressed, and the freezer compartment door 4 can be prevented from falling off.
- first protrusion 54 with which the hinge angle 10 abuts on the upper surface is separated from the hinge pin 21, and the hinge angle 10 abuts on the lower surface of the second protrusion 62. For this reason, it is possible to prevent interference between the first projecting portion 54 and the cam mechanism 12 and to prevent interference between the second support member 60 and the cam mechanism 12.
- the cam forming member 30 in which the groove cam 31 is formed is screwed to the upper surface of the freezer compartment door 4, the lower surface of the hinge angle 10 is sandwiched between the cam forming member 30 and the upper surface of the freezer compartment door 4. And the upper surface of the freezer compartment door 4 can be easily narrowed.
- a spacer can be provided between the upper surface of the freezer compartment door 4 and the cam forming member 30 to make the gap between the lower surface of the hinge angle 10 and the upper surface of the freezer compartment door 4 appropriate.
- a spacer can be arranged between the first projecting portion 54 and the hinge angle 10 so that the gap between the lower surface of the hinge angle 10 and the upper surface of the freezer compartment door 4 can be made appropriate.
- first attachment portion 51 extends to the outside of the second support member 60 through the back of the second attachment portion 61, and protrudes forward from the end portion of the extension portion 52 to be close to the hinge angle 10.
- the opposing portion 55 is formed in an L shape in plan view, the opposing portion 55 is formed to have a large thickness in the vertical direction. Thereby, the movement of the hinge pin 21 in the axial direction when a foreign substance enters the groove cam 31 can be prevented more reliably.
- the cam mechanism 12 is provided with the hinge pin 21 and the rib 24 on the main body 2 and the groove cam 31 and the boss 34 are provided on the door, but the hinge pin 21 and the rib 24 are provided on the door and the groove cam 31 and the boss are provided on the door. 34 may be provided in the main body 2.
- the hinge pin 21 is provided on the lower surface of the door, foreign matter easily enters the groove cam 31 facing upward and is easily recognized. Therefore, when the hinge pin 21 is provided on the lower surface of the door and the groove cam 31 and the groove cam shutter 41 are provided on the main body 2 (equipment main body), the usability and aesthetics of the refrigerator 1 can be further improved.
- the cam mechanism 12 has a relief groove 36 formed around the second engagement projection 35 provided on the door.
- the second engagement projection 35 is provided around the first engagement projection 25 of the main body 2.
- a relief groove 36 that avoids the interference may be provided. At this time, when the escape groove 36 provided in the main body 2 is arranged facing upward, the usability and aesthetics of the refrigerator 1 can be further improved.
- a pair of cam mechanisms 12 may be provided on the top and bottom or front and back of the door to open the door from the top and bottom or front and back.
- the present invention can be used for a device such as a refrigerator having a double door opening / closing mechanism that opens / closes a door alternatively from two directions.
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Abstract
A mechanism for opening and closing a door which can be opened and closed from either side thereof, the mechanism allowing the door (4) for covering the opening section (3a) of an apparatus body (2) to be opened and closed selectively from two directions by means of a pair of cam mechanisms (12) which are symmetrically disposed at both opposing ends of the apparatus body (2) and the door (4). Each of the cam mechanism (12) is provided with: a hinge pin (21) provided to one of the apparatus body (2) and the door (4) and forming the pivot shaft for the door (4); and a groove cam (31) provided to the other of the apparatus body (2) and the door (4) and engaging with and guiding the hinge pin (21). Each of the cam mechanism (12) is also provided with a groove cam shutter (41) which covers the groove cam (31) when the door (4) is opened and which retracts from the groove cam (31) when the door (4) is closed.
Description
本発明は、扉を二方向から択一的に開閉する両開きの扉開閉機構及びそれを備えた冷蔵庫に関する。
The present invention relates to a double door opening / closing mechanism that opens and closes a door alternatively from two directions, and a refrigerator including the same.
従来の扉開閉機構は特許文献1及び特許文献2に開示されている。この扉開閉機構は機器本体及び扉の対向する両端部に対称に配された一対のカム機構を備えている。カム機構は機器本体に扉の枢支軸を形成するヒンジピンが設けられ、扉にはヒンジピンを係合案内する溝カムが設けられる。
Conventional door opening / closing mechanisms are disclosed in Patent Document 1 and Patent Document 2. The door opening / closing mechanism includes a pair of cam mechanisms disposed symmetrically at opposite ends of the device main body and the door. The cam mechanism is provided with a hinge pin that forms a pivot shaft of the door in the device body, and the door is provided with a groove cam that engages and guides the hinge pin.
溝カムは連続する第1溝部及び第2溝部から成っている。第1溝部は一端を開放して枢支軸に垂直な面内で傾斜して形成される。第2溝部は第1溝部の他端に連続し、第1溝部の開放端から離れる方向に延びる。また、機器本体にはヒンジピンと同軸の円筒面から成る案内面を有するリブが設けられる。扉にはリブの案内面に摺動する円筒面を有したボスが設けられる。
The groove cam is composed of a continuous first groove portion and second groove portion. The first groove portion is formed so as to be inclined in a plane perpendicular to the pivot shaft with one end opened. The second groove portion is continuous with the other end of the first groove portion and extends in a direction away from the open end of the first groove portion. The device body is provided with a rib having a guide surface composed of a cylindrical surface coaxial with the hinge pin. The door is provided with a boss having a cylindrical surface that slides on the guide surface of the rib.
扉を閉じた状態では両方のカム機構は第1溝部と第2溝部との連結部分にヒンジピンを配した第1係止位置をとる。扉の一方を開くと該一方のヒンジピンは第1溝部内を開放端に向けて相対移動する。この時、第1溝部が傾斜するとともに両ヒンジピン間の距離が一定のため、他方のヒンジピンは第1溝部から離れる方向に第2溝部内を相対移動する。
When the door is closed, both cam mechanisms take the first locking position in which the hinge pin is arranged at the connecting portion between the first groove and the second groove. When one of the doors is opened, the one hinge pin moves relative to the open end in the first groove. At this time, since the first groove portion is inclined and the distance between both hinge pins is constant, the other hinge pin relatively moves in the second groove portion in a direction away from the first groove portion.
そして、一方のカム機構のヒンジピンが溝カムとの係合を解除され、他方のカム機構はヒンジピンが第2溝部の端部に配された第2係止位置をとる。この時、ボスがリブに内接してリブの案内面に摺動する。カム機構は第2係止位置でヒンジピンを回転自在に支持するとともにリブとボスとの摺接によってヒンジピンのスライドが規制され、ヒンジピンを枢支軸として扉を回動することができる。
Then, the hinge pin of one cam mechanism is disengaged from the groove cam, and the other cam mechanism takes the second locking position in which the hinge pin is arranged at the end of the second groove portion. At this time, the boss is inscribed in the rib and slides on the guide surface of the rib. The cam mechanism rotatably supports the hinge pin at the second locking position, and the sliding of the hinge pin is regulated by the sliding contact between the rib and the boss, and the door can be rotated about the hinge pin as a pivot shaft.
尚、カム機構は左右対称に配されるため、同様の動作によって扉を他方から開くことができる。
In addition, since the cam mechanism is arranged symmetrically, the door can be opened from the other by the same operation.
また、上方に配される左右のヒンジピンは左右に分割したヒンジピン形成部材上にインサート成形等によりそれぞれ形成される。機器本体の上面には天井プレートがネジ止めされ、左右のヒンジピン形成部材は天井プレートにネジ止めされる。下方に配される左右のヒンジピンは断面L字型のヒンジアングル上に一体に形成される。また、溝カムは扉の上下面にネジ止めされるカム形成部材に形成される。
Also, the left and right hinge pins arranged above are respectively formed by insert molding or the like on the hinge pin forming member divided into the left and right. The ceiling plate is screwed to the upper surface of the device body, and the left and right hinge pin forming members are screwed to the ceiling plate. The left and right hinge pins are integrally formed on a hinge angle having an L-shaped cross section. The groove cam is formed on a cam forming member that is screwed to the upper and lower surfaces of the door.
扉の取付け時には、まず、下方のヒンジアングルが開口部の下方の前面にネジ止めされる。次に、下方のヒンジピンに扉の下面の溝カムを係合し、扉が所定の隙間を有してヒンジアングル上に設置される。次に、扉の上面の溝カムにヒンジピンを係合し、天井プレートまたはヒンジピン形成部材を前後方向及び左右方向に位置調整する。そして、天井プレート及びヒンジピン形成部材がネジ止めされる。
When installing the door, first, the lower hinge angle is screwed to the front surface below the opening. Next, the groove cam on the lower surface of the door is engaged with the lower hinge pin, and the door is installed on the hinge angle with a predetermined gap. Next, the hinge pin is engaged with the groove cam on the upper surface of the door, and the position of the ceiling plate or the hinge pin forming member is adjusted in the front-rear direction and the left-right direction. Then, the ceiling plate and the hinge pin forming member are screwed.
この時、扉とヒンジピン形成部材の下面との隙間が所定値よりも小さい場合は天井プレートと機器本体の上面との間にスペーサを挟んで天井プレートがネジ止めされる。また、扉とヒンジピン形成部材との隙間が所定値よりも大きい場合はカム形成部材と扉の上面との間にスペーサを挟んでカム形成部材がネジ止めされる。これにより、上下のヒンジピンの距離と上下の溝カムの距離とを所定の範囲に維持し、円滑に扉を案内することができる。
At this time, if the gap between the door and the lower surface of the hinge pin forming member is smaller than a predetermined value, the ceiling plate is screwed with a spacer interposed between the ceiling plate and the upper surface of the device body. Further, when the gap between the door and the hinge pin forming member is larger than a predetermined value, the cam forming member is screwed with a spacer interposed between the cam forming member and the upper surface of the door. Thus, the distance between the upper and lower hinge pins and the distance between the upper and lower groove cams can be maintained within a predetermined range, and the door can be smoothly guided.
上記従来の扉開閉機構によると、一方のカム機構のヒンジピン及び溝カムは扉の一方を開く場合に係合が解除され、扉の他方を開く場合に係合状態が維持される。このため、溝カムはヒンジピンが係脱可能なように扉の表面に露出して形成される。ヒンジピンを扉に設けて溝カムを機器本体に設けた場合も同様に、溝カムは機器本体の表面に露出して形成される。
According to the conventional door opening / closing mechanism, the hinge pin and the groove cam of one cam mechanism are disengaged when one of the doors is opened, and the engaged state is maintained when the other door is opened. For this reason, the groove cam is formed on the surface of the door so that the hinge pin can be engaged and disengaged. Similarly, when the hinge pin is provided on the door and the groove cam is provided on the device main body, the groove cam is formed to be exposed on the surface of the device main body.
しかしながら、扉を開いた際に露出した溝カムに異物が挟まると、扉を閉じることができなくなる。このため、扉開閉機構を設けた冷蔵庫等の機器の使用性が悪い問題があった。また、溝カムが露出して視認されるため、冷蔵庫の美観が損なわれる問題もあった。
However, if a foreign object gets caught in the groove cam exposed when the door is opened, the door cannot be closed. For this reason, there was a problem that the usability of equipment such as a refrigerator provided with a door opening / closing mechanism was poor. Moreover, since the groove cam is exposed and visually recognized, there is a problem that the beauty of the refrigerator is impaired.
また、機器本体の下部に設けた開口部を開閉する両開きの扉開閉機構は、上記と同様のカム機構を扉の左右端に設けて構成することができる。この時、扉の上面の溝カムに係合するヒンジピンをヒンジピン形成部材に設け、機器本体の前面に取り付けられる断面L字型の支持部材によりヒンジピン形成部材を支持することができる。
Also, the double door opening / closing mechanism that opens and closes the opening provided in the lower part of the device main body can be configured by providing cam mechanisms similar to the above on the left and right ends of the door. At this time, a hinge pin that engages with the groove cam on the upper surface of the door is provided on the hinge pin forming member, and the hinge pin forming member can be supported by a support member having an L-shaped cross section that is attached to the front surface of the apparatus main body.
しかしながら、支持部材が機器本体の鉛直な前面に取付けられるため、前後方向の位置調整が困難になる。このため、支持部材に対してヒンジピン形成部材を前後方向に位置調整する必要がある。また、上下方向の位置調整のために支持部材と機器本体との間にスペーサを挟むことができない。従って、ヒンジピン形成部材を前後方向に位置調整しながら支持部材を上下方向に移動させる必要があり、組立が非常に困難で製造工数が大きくなる問題があった。
However, since the support member is attached to the vertical front surface of the device main body, it is difficult to adjust the position in the front-rear direction. For this reason, it is necessary to adjust the position of the hinge pin forming member in the front-rear direction with respect to the support member. In addition, a spacer cannot be sandwiched between the support member and the apparatus main body for vertical position adjustment. Therefore, it is necessary to move the support member in the vertical direction while adjusting the position of the hinge pin forming member in the front-rear direction, which causes a problem that assembly is very difficult and the number of manufacturing steps is increased.
本発明は、使用性及び美感を向上できる扉開閉機構及び冷蔵庫を提供することを目的とする。また本発明は、製造工数を削減できる扉開閉機構及びそれを備えた冷蔵庫を提供することを目的とする。
An object of the present invention is to provide a door opening / closing mechanism and a refrigerator that can improve usability and aesthetics. Another object of the present invention is to provide a door opening / closing mechanism that can reduce the number of manufacturing steps and a refrigerator including the door opening / closing mechanism.
上記目的を達成するために本発明は、機器本体の開口部を覆う扉を、前記機器本体及び前記扉の対向する両端部に対称に配された一対のカム機構によって二方向から択一的に開閉する両開きの扉開閉機構において、前記カム機構が、前記機器本体及び前記扉の一方に設けられて前記扉の枢支軸を形成するヒンジピンと、前記機器本体及び前記扉の他方に設けられて前記ヒンジピンを係合案内する溝カムとを有し、前記扉を開いた際に前記溝カムを覆うとともに前記扉を閉じた際に前記溝カムから退避する溝カムシャッターを設けたことを特徴としている。
In order to achieve the above object, the present invention provides a door that covers an opening of a device main body, alternatively from two directions by a pair of cam mechanisms that are symmetrically disposed at opposite ends of the device main body and the door. In the double door opening / closing mechanism that opens and closes, the cam mechanism is provided on one of the device main body and the door to form a pivot shaft of the door, and on the other of the device main body and the door. A groove cam for engaging and guiding the hinge pin, and a groove cam shutter that covers the groove cam when the door is opened and retracts from the groove cam when the door is closed is provided. Yes.
この構成によると、扉の両端部に設けた一対のカム機構のヒンジピンと溝カムとの係脱によって扉が二方向から択一的に開閉される。扉が閉じられると溝カムシャッターが溝カムから退避し、両方のカム機構のヒンジピンと溝カムとが係合して扉を閉じた状態が保持される。扉を一方から開くと該一方のヒンジピンが溝カムから離脱する。この時、溝カムシャッターによって溝カムが覆われる。
According to this configuration, the door is opened and closed alternatively from two directions by the engagement and disengagement of the hinge pin and the groove cam of the pair of cam mechanisms provided at both ends of the door. When the door is closed, the groove cam shutter is retracted from the groove cam, and the hinge pin and the groove cam of both cam mechanisms are engaged to maintain the closed state of the door. When the door is opened from one side, the one hinge pin is detached from the groove cam. At this time, the groove cam is covered by the groove cam shutter.
また本発明は、上記構成の扉開閉機構において、前記扉の閉成時に両側の前記カム機構が対称な第1係止位置をとるとともに、前記扉の一方を開く際に両方の前記カム機構によって前記扉が開放側から軸側へスライドして他方の前記カム機構が第2係止位置をとり、第2係止位置で前記扉をスライド規制して回動自在に支持することを特徴としている。
According to the present invention, in the door opening / closing mechanism configured as described above, the cam mechanisms on both sides take a symmetric first locking position when the door is closed, and both the cam mechanisms open the one of the doors. The door is slid from the open side to the shaft side, and the other cam mechanism takes a second locking position, and the door is slid at the second locking position and supported rotatably. .
この構成によると、扉を閉じた状態で両方のカム機構は溝カムの所定位置にヒンジピンが配される第1係止位置をとる。これにより、扉の脱落を防止して扉を閉じた状態が保持される。扉の一方を開くと該一方のカム機構はヒンジピンが溝カム内を相対移動して係合解除され、他方のカム機構はヒンジピンが溝カム内を相対移動して第2係止位置をとる。カム機構は第2係止位置でヒンジピンを回転自在に支持するとともにヒンジピンのスライドが規制され、ヒンジピンを枢支軸として扉を回動することができる。
According to this configuration, both cam mechanisms take the first locking position in which the hinge pin is arranged at a predetermined position of the groove cam with the door closed. As a result, the door is prevented from falling off and the door is closed. When one of the doors is opened, the one cam mechanism is disengaged by the relative movement of the hinge pin in the groove cam, and in the other cam mechanism, the hinge pin is relatively moved in the groove cam and takes the second locking position. The cam mechanism rotatably supports the hinge pin at the second locking position and the sliding of the hinge pin is restricted, and the door can be rotated about the hinge pin as a pivot shaft.
また本発明は、上記構成の扉開閉機構において、前記ヒンジピンと同心の円弧上に沿って形成される案内面を有するリブと、第2係止位置で前記案内面に摺動して前記ヒンジピンのスライドを規制するボスとを備え、前記溝カムシャッターが回動自在に支持されて前記溝カムを覆う方向に付勢されるとともに前記ヒンジピンまたは前記リブとの当接によって前記溝カムから退避することを特徴としている。
According to the present invention, in the door opening / closing mechanism having the above-described structure, a rib having a guide surface formed along an arc concentric with the hinge pin, and sliding on the guide surface at a second locking position, A boss for regulating the slide, wherein the groove cam shutter is rotatably supported and urged in a direction to cover the groove cam, and retracts from the groove cam by contact with the hinge pin or the rib. It is characterized by.
この構成によると、扉を一方から開いた状態で該一方のカム機構はヒンジピンと溝カムの係合が解除され、溝カムシャッターは付勢されて溝カムを覆う。この時、他方のカム機構は第2係止位置をとり、リブとボスとの当接によってヒンジピンのスライドが規制される。扉を閉じていくと該一方の溝カムシャッターがヒンジピンまたはリブに当接し、付勢力に抗して回動する。これにより、溝カムが露出してヒンジピンと溝カムとが係合し、カム機構が第1係止位置に配される。
According to this configuration, with the door opened from one side, the one cam mechanism is disengaged from the hinge pin and the groove cam, and the groove cam shutter is biased to cover the groove cam. At this time, the other cam mechanism takes the second locking position, and the sliding of the hinge pin is restricted by the contact between the rib and the boss. When the door is closed, the one groove cam shutter comes into contact with the hinge pin or the rib and rotates against the urging force. Thereby, the groove cam is exposed, the hinge pin and the groove cam are engaged, and the cam mechanism is arranged at the first locking position.
また本発明は、上記構成の扉開閉機構において、前記ヒンジピンを前記機器本体に設けるとともに、前記溝カム及び前記溝カムシャッターを前記扉の上面に設けたことを特徴としている。
Further, the present invention is characterized in that in the door opening / closing mechanism configured as described above, the hinge pin is provided in the device main body, and the groove cam and the groove cam shutter are provided on an upper surface of the door.
また本発明は、上記構成の扉開閉機構において、前記ヒンジピンを前記扉の下面に設けるとともに、前記溝カム及び前記溝カムシャッターを前記機器本体に設けたことを特徴としている。
Further, the present invention is characterized in that, in the door opening / closing mechanism having the above-described configuration, the hinge pin is provided on the lower surface of the door, and the groove cam and the groove cam shutter are provided in the device main body.
また本発明は、上記構成の扉開閉機構において、前記カム機構が、両方の前記ヒンジピン間に配されて両方の前記ヒンジピンと同心の円筒面が対向して形成される第1係合突起と、第1係合突起を摺動案内する第2係合突起と、第2係合突起の周囲に凹設して第1係合突起との干渉を回避する逃げ溝とを有し、前記扉を開いた際に前記逃げ溝を覆うとともに前記扉を閉じた際に前記逃げ溝から退避する逃げ溝シャッターを設けたことを特徴としている。
In the door opening / closing mechanism having the above-described configuration, the cam mechanism may be disposed between both of the hinge pins, and the first engagement protrusion formed so as to face a cylindrical surface concentric with both of the hinge pins; A second engaging protrusion for slidingly guiding the first engaging protrusion; and a relief groove provided around the second engaging protrusion to avoid interference with the first engaging protrusion; A relief groove shutter is provided that covers the relief groove when opened and retracts from the relief groove when the door is closed.
この構成によると、扉を閉じた状態で逃げ溝シャッターが逃げ溝から退避し、第1係合突起が逃げ溝内に配される。扉の一方を開き始めるとヒンジピンが溝カム内を相対移動するとともに、第1係合突起が第2係合突起と摺動して逃げ溝内を相対移動する。扉が開かれるとヒンジピンを溝カムとの係合が解除され、第1係合突起が逃げ溝から退避する。この時、逃げ溝が逃げ溝シャッターにより覆われる。
According to this configuration, the escape groove shutter is retracted from the escape groove with the door closed, and the first engagement protrusion is arranged in the escape groove. When one of the doors begins to open, the hinge pin relatively moves in the groove cam, and the first engaging protrusion slides with the second engaging protrusion to move relatively in the escape groove. When the door is opened, the hinge pin is disengaged from the groove cam, and the first engagement protrusion is retracted from the escape groove. At this time, the escape groove is covered with the escape groove shutter.
また本発明は、上記構成の扉開閉機構において、前記逃げ溝シャッターが回動自在に支持されて前記逃げ溝を覆う方向に付勢されるとともに第1係合突起との当接によって前記逃げ溝から退避することを特徴としている。この構成によると、扉を閉じていくと逃げ溝シャッターが第1係合突起に当接し、付勢力に抗して回動する。これにより、逃げ溝が露出して第1係合突起と第2係合突起とが摺動する。
According to the present invention, in the door opening / closing mechanism configured as described above, the escape groove shutter is rotatably supported and biased in a direction to cover the escape groove, and the escape groove is brought into contact with the first engagement protrusion. It is characterized by evacuating from. According to this configuration, when the door is closed, the escape groove shutter comes into contact with the first engagement protrusion and rotates against the urging force. As a result, the escape groove is exposed and the first engagement protrusion and the second engagement protrusion slide.
また本発明は、機器本体の開口部を覆う扉を、前記機器本体及び前記扉の左右端に対称に配された一対のカム機構によって左右から択一的に開閉する両開きの扉開閉機構において、
前記扉の枢支軸を形成する左右のヒンジピンを一体に保持するヒンジアングルと、
前記開口部の上方の前面にネジ止めされる第1取付部と第1取付部から前方に突出する第1突出部とを有し、第1突出部の上面に設置した前記ヒンジアングルを上方からネジ止めする第1支持部材と、
第1突出部の左右方向の外側に配されるとともに、前記開口部の上方の前面にネジ止めされる第2取付部と第2取付部から前方に突出する第2突出部とを有し、第2突出部の下面に当接する前記ヒンジアングルを第2突出部にネジ止めする第2支持部材と、
前記扉の上面の左右端にそれぞれ配されて前記ヒンジピンに係合して前記扉を案内する溝カムと、
を備えたことを特徴としている。 Further, the present invention provides a door opening / closing mechanism that opens and closes the door that covers the opening of the device main body alternately from the left and right by a pair of cam mechanisms that are symmetrically arranged on the left and right ends of the device main body and the door.
A hinge angle for integrally holding the left and right hinge pins forming the pivot shaft of the door;
The first mounting portion screwed to the front surface above the opening and a first protruding portion protruding forward from the first mounting portion, the hinge angle installed on the upper surface of the first protruding portion from above A first support member to be screwed;
A second mounting portion that is arranged on the outer side in the left-right direction of the first protruding portion and screwed to the front surface above the opening, and a second protruding portion that protrudes forward from the second mounting portion; A second support member for screwing the hinge angle contacting the lower surface of the second protrusion to the second protrusion;
Groove cams that are respectively arranged on the left and right ends of the upper surface of the door and engage with the hinge pins to guide the door;
It is characterized by having.
前記扉の枢支軸を形成する左右のヒンジピンを一体に保持するヒンジアングルと、
前記開口部の上方の前面にネジ止めされる第1取付部と第1取付部から前方に突出する第1突出部とを有し、第1突出部の上面に設置した前記ヒンジアングルを上方からネジ止めする第1支持部材と、
第1突出部の左右方向の外側に配されるとともに、前記開口部の上方の前面にネジ止めされる第2取付部と第2取付部から前方に突出する第2突出部とを有し、第2突出部の下面に当接する前記ヒンジアングルを第2突出部にネジ止めする第2支持部材と、
前記扉の上面の左右端にそれぞれ配されて前記ヒンジピンに係合して前記扉を案内する溝カムと、
を備えたことを特徴としている。 Further, the present invention provides a door opening / closing mechanism that opens and closes the door that covers the opening of the device main body alternately from the left and right by a pair of cam mechanisms that are symmetrically arranged on the left and right ends of the device main body and the door.
A hinge angle for integrally holding the left and right hinge pins forming the pivot shaft of the door;
The first mounting portion screwed to the front surface above the opening and a first protruding portion protruding forward from the first mounting portion, the hinge angle installed on the upper surface of the first protruding portion from above A first support member to be screwed;
A second mounting portion that is arranged on the outer side in the left-right direction of the first protruding portion and screwed to the front surface above the opening, and a second protruding portion that protrudes forward from the second mounting portion; A second support member for screwing the hinge angle contacting the lower surface of the second protrusion to the second protrusion;
Groove cams that are respectively arranged on the left and right ends of the upper surface of the door and engage with the hinge pins to guide the door;
It is characterized by having.
この構成によると、扉の左右端に設けた一対のカム機構のヒンジピンと溝カムとの係脱によって扉が二方向から択一的に開閉される。扉の上方に配される左右のヒンジピンはヒンジアングルにより一体に保持される。第1支持部材は開口部の上方の前面に第1取付部をネジ止めして機器本体に取り付けられる。ヒンジアングルは第1支持部材の第1突出部上に設置され、左右方向及び前後方向を位置調整して第1突出部にネジ止めされる。この時、扉の上面とヒンジアングルの下面との隙間が所定値よりも小さい場合は第1突出部とヒンジアングルとの間にスペーサを挟んでヒンジアングルがネジ止めされる。第2支持部材は第1突出部よりも外側のヒンジピンに近い位置に配置され、第2突出部がヒンジアングルの上面に当接する。そして、第2取付部が開口部の下方の前面にネジ止めされ、第2突出部とヒンジアングルとがネジ止めされる。第2支持部材により溝カムに異物が侵入した場合等のヒンジピンの軸方向の移動が抑制される。
According to this configuration, the door is opened and closed alternatively from two directions by the engagement and disengagement of the hinge pin and the groove cam of the pair of cam mechanisms provided at the left and right ends of the door. The left and right hinge pins arranged above the door are held together by a hinge angle. The first support member is attached to the device body by screwing the first attachment portion on the front surface above the opening. The hinge angle is installed on the first protrusion of the first support member, and is screwed to the first protrusion by adjusting the position in the left-right direction and the front-rear direction. At this time, if the gap between the upper surface of the door and the lower surface of the hinge angle is smaller than a predetermined value, the hinge angle is screwed with a spacer interposed between the first protrusion and the hinge angle. The second support member is disposed at a position close to the hinge pin outside the first protrusion, and the second protrusion contacts the upper surface of the hinge angle. The second attachment portion is screwed to the front surface below the opening, and the second protrusion and the hinge angle are screwed. The axial movement of the hinge pin, such as when a foreign object enters the groove cam, is suppressed by the second support member.
また本発明は、上記構成の扉開閉機構において、前記溝カムが形成されるカム形成部材を前記扉の上面にネジ止めしたことを特徴としている。この構成によると、扉の上面とヒンジアングルの下面との隙間が所定値よりも大きい場合は扉の上面とカム形成部材との間にスペーサを挟んでカム形成部材がネジ止めされる。
Further, the present invention is characterized in that, in the door opening / closing mechanism having the above-described configuration, a cam forming member on which the groove cam is formed is screwed to the upper surface of the door. According to this configuration, when the gap between the upper surface of the door and the lower surface of the hinge angle is larger than a predetermined value, the cam forming member is screwed with the spacer interposed between the upper surface of the door and the cam forming member.
また本発明は、上記構成の扉開閉機構において、前記扉の上面と前記カム形成部材との間にスペーサを配したことを特徴としている。
Also, the present invention is characterized in that in the door opening / closing mechanism having the above-described configuration, a spacer is disposed between the upper surface of the door and the cam forming member.
また本発明は、上記構成の扉開閉機構において、第1突出部と前記ヒンジアングルとの間にスペーサを配したことを特徴としている。
Further, according to the present invention, in the door opening / closing mechanism configured as described above, a spacer is disposed between the first projecting portion and the hinge angle.
また本発明は、上記構成の扉開閉機構において、第1取付部は、第2取付部の背後を通って第2支持部材の外側に延びる延設部と、前記延接部の端部から前方に突出して前記ヒンジアングルに近接して対向する対向部とを有した平面視L字型に形成されることを特徴としている。
According to the present invention, in the door opening / closing mechanism configured as described above, the first attachment portion includes an extension portion that extends behind the second attachment portion and extends to the outside of the second support member, and a front side from the end portion of the extension contact portion. It is characterized in that it is formed in an L shape in a plan view having a facing portion that protrudes in the vicinity and faces the hinge angle in the vicinity.
この構成によると、第1取付部の延設部は第2取付部の背後を機器本体の前面に沿って外側に延びる。第1取付部の対向部は延設部の端部から前方に突出し、第1取付部が延設部及び対向部によって平面視L字型に形成される。対向部は第2支持部材の外側のヒンジピンに近い位置に配され、ヒンジピンが上昇した際にヒンジアングルに当接してヒンジピンの上昇を規制する。
According to this configuration, the extending portion of the first mounting portion extends outward along the front surface of the device main body behind the second mounting portion. The facing portion of the first mounting portion protrudes forward from the end of the extending portion, and the first mounting portion is formed in an L shape in plan view by the extending portion and the facing portion. The facing portion is disposed at a position close to the hinge pin on the outer side of the second support member, and abuts against the hinge angle when the hinge pin rises to restrict the rise of the hinge pin.
また本発明は、上記構成の扉開閉機構において、前記扉を開いた際に前記溝カムを覆うとともに前記扉を閉じた際に前記溝カムから退避する溝カムシャッターを設けたことを特徴としている。
According to the present invention, in the door opening / closing mechanism configured as described above, a groove cam shutter that covers the groove cam when the door is opened and retracts from the groove cam when the door is closed is provided. .
この構成によると、扉が閉じられると溝カムシャッターが溝カムから退避し、両方のカム機構のヒンジピンと溝カムとが係合して扉を閉じた状態が保持される。扉を一方から開くと該一方のヒンジピンが溝カムから離脱する。この時、溝カムシャッターによって溝カムが覆われる。
According to this configuration, when the door is closed, the groove cam shutter is retracted from the groove cam, and the hinge pin and the groove cam of both cam mechanisms are engaged to keep the door closed. When the door is opened from one side, the one hinge pin is detached from the groove cam. At this time, the groove cam is covered by the groove cam shutter.
また本発明の冷蔵庫は、上記各構成の扉開閉機構を備えたことを特徴としている。
The refrigerator of the present invention is characterized by including the door opening / closing mechanism having the above-described configuration.
本発明によると、ヒンジピンと溝カムとが係合する一対のカム機構によって二方向から択一的に扉を開閉し、扉を開いた際に溝カムを覆うとともに扉を閉じた際に溝カムから退避する溝カムシャッターを設けたので、扉を開いた際に溝カムへの異物の侵入を防止することができる。従って、扉を閉じることができない不具合を回避することができ、扉開閉機構を備えた機器の使用性を向上することができる。また、扉を開いた際に溝カムが視認されないため、扉開閉機構を備えた機器の美感を向上することができる。
According to the present invention, the door is selectively opened and closed from two directions by a pair of cam mechanisms in which the hinge pin and the groove cam engage, and the groove cam is covered when the door is opened and the groove cam when the door is closed. Since the groove cam shutter for retreating from is provided, foreign matter can be prevented from entering the groove cam when the door is opened. Therefore, the malfunction which cannot close a door can be avoided, and the usability of the apparatus provided with the door opening / closing mechanism can be improved. Further, since the groove cam is not visually recognized when the door is opened, the aesthetics of the device provided with the door opening / closing mechanism can be improved.
また本発明によると、第1支持部材の第1取付部が開口部の上方の前面にネジ止めされ、第1取付部から前方に突出する第1突出部の上面に設置したヒンジアングルを上方からネジ止めするので、ヒンジアングルを第1突出部上で左右方向及び前後方向に移動させて容易に位置調整して固定することができる。この時、第1突出部とヒンジアングルとの間にスペーサを挟むことでヒンジアングルを容易に上下方向に位置調整することができる。従って、扉開閉機構の製造工数を削減することができる。
According to the invention, the first mounting portion of the first support member is screwed to the front surface above the opening, and the hinge angle installed on the upper surface of the first protruding portion protruding forward from the first mounting portion is viewed from above. Since it is screwed, the hinge angle can be moved in the left-right direction and the front-rear direction on the first protrusion, and can be easily adjusted in position and fixed. At this time, the hinge angle can be easily adjusted in the vertical direction by sandwiching the spacer between the first protrusion and the hinge angle. Therefore, it is possible to reduce the number of manufacturing steps for the door opening / closing mechanism.
また、第1突出部の外側に配した第2支持部材の第2突出部の下面にヒンジアングルが当接して第2支持部材及びヒンジアングルがネジ止めされるので、第2支持部材を容易に取り付けできるとともに、ヒンジピン近傍でヒンジアングルを補強することができる。従って、溝カムに異物が侵入した場合等のヒンジピンの軸方向の移動を抑制することができる。
In addition, since the hinge angle abuts on the lower surface of the second protrusion of the second support member disposed outside the first protrusion and the second support member and the hinge angle are screwed, the second support member can be easily attached. It can be attached and the hinge angle can be reinforced near the hinge pin. Therefore, the movement of the hinge pin in the axial direction when a foreign matter enters the groove cam can be suppressed.
以下に本発明の実施形態を図面を参照して説明する。図1は一実施形態の扉開閉機構を備えた冷蔵庫を示す正面図である。冷蔵庫1は断熱箱体から成る本体部2(機器本体)の上部に冷蔵室5が形成され、下部に冷凍室6が形成される。冷蔵室5の前面の開口部5a(図2参照)は冷蔵室扉3により開閉される。冷凍室6の前面の開口部6a(図2参照)は冷凍室扉4により開閉される。冷蔵室扉3は左右端にハンドル3a、3bを有し、左右の二方向から択一的に開閉することができる。冷凍室扉4は左右端にハンドル4a、4bを有し、左右の二方向から択一的に開閉することができる。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a refrigerator provided with a door opening / closing mechanism according to an embodiment. In the refrigerator 1, a refrigerator compartment 5 is formed in the upper part of a main body 2 (equipment main body) made of a heat insulating box, and a freezer compartment 6 is formed in the lower part. The opening 5a (see FIG. 2) on the front surface of the refrigerator compartment 5 is opened and closed by the refrigerator compartment door 3. The opening 6 a (see FIG. 2) on the front surface of the freezer compartment 6 is opened and closed by the freezer compartment door 4. The refrigerator compartment door 3 has handles 3a and 3b at the left and right ends, and can be opened and closed alternatively from the left and right directions. The freezer compartment door 4 has handles 4a and 4b at the left and right ends, and can be opened and closed alternatively from the left and right directions.
図2は冷蔵庫1の本体部2を示す正面図である。また、図3は冷蔵庫1の冷蔵室扉3を開いた状態を示す斜視図である。本体部2の上面には左右方向に延びる天井プレート7が配される。天井プレート7の左右端にはそれぞれヒンジピン形成部材8が配される。ヒンジピン形成部材8はインサート成形等により金属製のヒンジピン21が一体に形成される。
FIG. 2 is a front view showing the main body 2 of the refrigerator 1. FIG. 3 is a perspective view showing a state where the refrigerator compartment door 3 of the refrigerator 1 is opened. A ceiling plate 7 extending in the left-right direction is disposed on the upper surface of the main body 2. Hinge pin forming members 8 are arranged on the left and right ends of the ceiling plate 7 respectively. The hinge pin forming member 8 is integrally formed with a metal hinge pin 21 by insert molding or the like.
開口部5aの下方の前面には左右方向に延びる断面L字型のヒンジアングル9が配される。ヒンジアングル9の左右端にはインサート成形等により金属製のヒンジピン21が一体に形成される。天井プレート7及びヒンジアングル9に設けられたヒンジピン21によって冷蔵室扉3の枢支軸が形成される。
A hinge angle 9 having an L-shaped cross section extending in the left-right direction is disposed on the front surface below the opening 5a. Metal hinge pins 21 are integrally formed on the left and right ends of the hinge angle 9 by insert molding or the like. The pivot pin of the refrigerator compartment door 3 is formed by the hinge pin 21 provided on the ceiling plate 7 and the hinge angle 9.
開口部6aの上方の前面には左右方向に延びるヒンジアングル10が配される。ヒンジアングル10の左右端にはインサート成形等により金属製のヒンジピン21が一体に形成される。また、ヒンジアングル10は左右に分離してそれぞれ設けられる第1支持部材50及び第2支持部材60により支持される。
A hinge angle 10 extending in the left-right direction is disposed on the front surface above the opening 6a. Metal hinge pins 21 are integrally formed on the left and right ends of the hinge angle 10 by insert molding or the like. In addition, the hinge angle 10 is supported by a first support member 50 and a second support member 60 that are provided separately on the left and right.
開口部6aの下方の前面には左右方向に延びる断面L字型のヒンジアングル11が配される。ヒンジアングル11の左右端にはインサート成形等により金属製のヒンジピン21が一体に形成される。ヒンジアングル10、11に設けられたヒンジピン21によって冷凍室扉4の枢支軸が形成される。
A hinge angle 11 having an L-shaped cross section extending in the left-right direction is disposed on the front surface below the opening 6a. Metal hinge pins 21 are integrally formed on the left and right ends of the hinge angle 11 by insert molding or the like. A pivot shaft of the freezer compartment door 4 is formed by hinge pins 21 provided at the hinge angles 10 and 11.
冷蔵室扉3の上下面及び冷凍室扉4の上下面にはヒンジピン21に係合する溝カム31(図11参照)を有したカム形成部材30(図11参照)が取り付けられる。ヒンジピン21及び溝カム31を含むカム機構12が冷蔵室扉3及び冷凍室扉4の左右の両端部に左右対称に設けられる。
Cam forming members 30 (see FIG. 11) having groove cams 31 (see FIG. 11) that engage with the hinge pins 21 are attached to the upper and lower surfaces of the refrigerator compartment door 3 and the upper and lower surfaces of the freezer compartment door 4. The cam mechanism 12 including the hinge pin 21 and the groove cam 31 is provided symmetrically on both left and right ends of the refrigerator compartment door 3 and the freezer compartment door 4.
冷蔵室扉3の上下にそれぞれ設けられる左右一対のカム機構12によって冷蔵室扉3と本体部2とを係脱し、冷蔵室扉3を開閉する両開きの扉開閉機構が構成される。また、冷凍室扉4の上下にそれぞれ設けられる左右一対のカム機構12によって冷凍室扉4と本体部2とを係脱し、冷凍室扉4を開閉する両開きの扉開閉機構が構成される。
A pair of left and right cam mechanisms 12 provided on the upper and lower sides of the refrigerator compartment door 3 respectively disengage the refrigerator compartment door 3 and the main body 2 to form a double door opening / closing mechanism that opens and closes the refrigerator compartment door 3. In addition, a pair of left and right cam mechanisms 12 provided on the upper and lower sides of the freezer compartment door 4 respectively disengage the freezer compartment door 4 and the main body portion 2 to constitute a double-open door open / close mechanism that opens and closes the freezer compartment door 4.
図4、図5、図6は冷凍室扉4の上方のヒンジアングル10の取付け状態の詳細を示す正面図、上面図及び側面図である。また、図7、図8、図9はそれぞれ図5のB-B断面図、C-C断面図、D-D断面図を示している。ヒンジアングル10は第1支持部材50及び第2支持部材60により支持される。
4, 5, and 6 are a front view, a top view, and a side view showing details of the mounting state of the hinge angle 10 above the freezer compartment door 4. 7, FIG. 8, and FIG. 9 show a BB sectional view, a CC sectional view, and a DD sectional view of FIG. 5, respectively. The hinge angle 10 is supported by the first support member 50 and the second support member 60.
第1支持部材50は側面断面がL字型に形成され、本体部2の前面に取り付けられる第1取付部51と、第1取付部51の下端から前方に突出する第1突出部54とを有している。第2支持部材60は側面断面がL字型に形成され、本体部2の前面に取り付けられる第2取付部61と、第2取付部61の下端から前方に突出する第2突出部62とを有している。第2支持部材60は第1突出部54の左右方向の外側に取り付けられ、第1突出部54とヒンジピン21との間に配置される。これにより、第1突出部54がヒンジピン21から離れた位置に配置され、第2支持部材60がヒンジピン21に近い位置に配置される。
The first support member 50 has an L-shaped side surface cross section, and includes a first attachment portion 51 attached to the front surface of the main body portion 2 and a first protrusion portion 54 protruding forward from the lower end of the first attachment portion 51. Have. The second support member 60 has a side cross-section formed in an L shape, and includes a second attachment portion 61 attached to the front surface of the main body portion 2 and a second protrusion portion 62 protruding forward from the lower end of the second attachment portion 61. Have. The second support member 60 is attached to the outside of the first protrusion 54 in the left-right direction, and is disposed between the first protrusion 54 and the hinge pin 21. Thereby, the 1st protrusion part 54 is arrange | positioned in the position away from the hinge pin 21, and the 2nd support member 60 is arrange | positioned in the position near the hinge pin 21. FIG.
第1取付部51には貫通孔51aが設けられ、貫通孔51aに挿通されるネジ51bによって第1支持部材50が本体部2にネジ止めされる。第1突出部54にはネジ孔54aが設けられ、第1突出部54の上面にヒンジアングル10が設置される。ヒンジアングル10にはネジ孔54aに対応する位置に貫通孔10aが設けられる。
The first mounting part 51 is provided with a through hole 51a, and the first support member 50 is screwed to the main body part 2 by a screw 51b inserted through the through hole 51a. A screw hole 54 a is provided in the first protrusion 54, and the hinge angle 10 is installed on the upper surface of the first protrusion 54. The hinge angle 10 is provided with a through hole 10a at a position corresponding to the screw hole 54a.
貫通孔10aに上方から挿通されるネジ54bによってヒンジアングル10が第1支持部材50にネジ止めされる。この時、貫通孔10aはネジ54bの雄ネジ部に対して十分大きく形成される。これにより、ヒンジアングル10と第1支持部材50との相対位置を前後方向及び左右方向に調整可能になっている。また、第1突出部54がヒンジピン21から離れるため、ヒンジアングル10の下面に設けられるカム機構12(図10参照)との干渉が回避される。
The hinge angle 10 is screwed to the first support member 50 by a screw 54b inserted from above into the through hole 10a. At this time, the through hole 10a is formed sufficiently large with respect to the male screw portion of the screw 54b. Thereby, the relative position of the hinge angle 10 and the 1st support member 50 can be adjusted to the front-back direction and the left-right direction. Moreover, since the 1st protrusion part 54 leaves | separates from the hinge pin 21, interference with the cam mechanism 12 (refer FIG. 10) provided in the lower surface of the hinge angle 10 is avoided.
第1取付部51には本体部2の前面に沿って左右方向に延びる延設部52が設けられる。延設部52は第2取付部61の背後を通って第2支持部材60の外側に延び、延設部52の端部には前方に突出する対向部55が設けられる。これにより、第1取付部51は平面視L字型に形成される。
The first mounting portion 51 is provided with an extending portion 52 extending in the left-right direction along the front surface of the main body portion 2. The extended portion 52 extends to the outside of the second support member 60 through the back of the second mounting portion 61, and an opposing portion 55 that protrudes forward is provided at the end of the extended portion 52. Thereby, the 1st attachment part 51 is formed in planar view L shape.
また、第1取付部51には第1突出部54の両側方の下端から前方に突出する対向部56、57が設けられる。対向部55、56、57はヒンジアングル10の上面に近接して対向する。
Also, the first mounting portion 51 is provided with facing portions 56 and 57 that protrude forward from the lower ends on both sides of the first protruding portion 54. The facing portions 55, 56, and 57 face each other close to the upper surface of the hinge angle 10.
第2取付部61には貫通孔(不図示)が設けられ、貫通孔に挿通されるネジ61bによって第2支持部材60が本体部2にネジ止めされる。この時、ネジ61bはヒンジアングル9に設けた貫通孔(不図示)を貫通し、第2支持部材60及びヒンジアングル9を共締めする。これにより、第2取付部61を前方に配置して第2突出部62の突出量を小さくすることができ、第2支持部材60の強度を向上することができる。
A through hole (not shown) is provided in the second mounting portion 61, and the second support member 60 is screwed to the main body portion 2 by a screw 61b inserted through the through hole. At this time, the screw 61b passes through a through hole (not shown) provided in the hinge angle 9, and fastens the second support member 60 and the hinge angle 9 together. Thereby, the 2nd attaching part 61 can be arrange | positioned ahead, the protrusion amount of the 2nd protrusion part 62 can be made small, and the intensity | strength of the 2nd support member 60 can be improved.
第2突出部62にはネジ孔62aが設けられ、第2突出部62の下面に接してヒンジアングル10が配される。ヒンジアングル10にはネジ孔62aに対応する位置に貫通孔10bが設けられる。貫通孔10bに下方から挿通されるネジ62bによってヒンジアングル10が第2支持部材60にネジ止めされる。この時、貫通孔10bはネジ62bの雄ネジ部に対して十分大きく形成される。これにより、ヒンジアングル10と第2支持部材60との相対位置を前後方向及び左右方向に調整可能になっている。
A screw hole 62 a is provided in the second projecting portion 62, and the hinge angle 10 is disposed in contact with the lower surface of the second projecting portion 62. The hinge angle 10 is provided with a through hole 10b at a position corresponding to the screw hole 62a. The hinge angle 10 is screwed to the second support member 60 by a screw 62b inserted from below into the through hole 10b. At this time, the through-hole 10b is formed sufficiently large with respect to the male screw portion of the screw 62b. Thereby, the relative position of the hinge angle 10 and the 2nd support member 60 can be adjusted to the front-back direction and the left-right direction.
図10は冷凍室扉4の上方のカム機構12を示す上面図であり、冷凍室扉4が閉じられた状態を示している。また、図11は図10のA-A断面図を示している。冷凍室扉4の下方のカム機構12も同様に構成され、冷蔵室扉3の上下のカム機構12も同様に構成される。
FIG. 10 is a top view showing the cam mechanism 12 above the freezer compartment door 4 and shows a state in which the freezer compartment door 4 is closed. FIG. 11 is a cross-sectional view taken along the line AA in FIG. The cam mechanism 12 below the freezer compartment door 4 is similarly configured, and the upper and lower cam mechanisms 12 of the refrigerator compartment door 3 are similarly configured.
左右の両端部に配されるカム機構12は、ヒンジアングル10に設けられるヒンジピン21、リブ24、第1係合突起25(それぞれ図中、ハッチングで示す)と、冷凍室扉4に設けられる溝カム31、ボス34、第2係合突起35とを備えている。
The cam mechanisms 12 arranged at the left and right end portions include a hinge pin 21 provided on the hinge angle 10, a rib 24, a first engagement protrusion 25 (each indicated by hatching in the figure), and a groove provided in the freezer compartment door 4. A cam 31, a boss 34, and a second engagement protrusion 35 are provided.
リブ24は樹脂成形によってアーチ状に形成され、ヒンジピン21の周囲に配される。リブ24の内面にはヒンジピン21と同心の円筒面から成る案内面24aが形成される。尚、リブ24の案内面24aを多数のピンや突起部によって形成し、包絡面がヒンジピン21と同心の円筒面になるように形成してもよい。即ち、案内面24aがヒンジピン21と同心の円弧上に沿って形成されていればよい。
The ribs 24 are formed in an arch shape by resin molding and are arranged around the hinge pins 21. A guide surface 24 a made of a cylindrical surface concentric with the hinge pin 21 is formed on the inner surface of the rib 24. The guide surface 24a of the rib 24 may be formed by a large number of pins and protrusions, and the envelope surface may be formed to be a cylindrical surface concentric with the hinge pin 21. In other words, the guide surface 24a only needs to be formed along an arc concentric with the hinge pin 21.
第1係合突起25は左右のヒンジピン21の間に配置される。第1係合突起25には近い方のヒンジピン21と同心の円筒面25aと遠い方のヒンジピン21と同心の円筒面25bとが対向して設けられる。
The first engagement protrusion 25 is disposed between the left and right hinge pins 21. The first engaging protrusion 25 is provided with a cylindrical surface 25a concentric with the nearer hinge pin 21 and a cylindrical surface 25b concentric with the farther hinge pin 21 facing each other.
溝カム31、ボス34及び第2係合突起35は一体に樹脂成形されたカム形成部材30により形成される。カム形成部材30は冷凍室扉4の上面カバー4c上にネジ止めされる。
The groove cam 31, the boss 34, and the second engagement protrusion 35 are formed by a cam forming member 30 integrally molded with resin. The cam forming member 30 is screwed onto the upper surface cover 4 c of the freezer compartment door 4.
溝カム31はヒンジピン21が係合し、連続する第1溝部32と第2溝部33とを有している。第1溝部32は本体部2側を開放し、枢支軸に垂直な面内で開放端が内側に向くように傾斜して形成される。第2溝部33は第1溝部32の開放端と反対の端部に連続し、第1溝部32から外側に向かって屈曲して第1溝部32の開放端から離れる方向に延びる。
The groove cam 31 has a first groove portion 32 and a second groove portion 33 which are engaged with the hinge pin 21 and are continuous. The first groove portion 32 is formed to be inclined so that the main body portion 2 side is opened and the open end faces inward in a plane perpendicular to the pivot shaft. The second groove portion 33 continues to the end opposite to the open end of the first groove portion 32, bends outward from the first groove portion 32, and extends in a direction away from the open end of the first groove portion 32.
ボス34は第2溝部33が凹設され、リブ24の案内面24aに摺動する円筒面34aを有している。また、ボス34の周面には後述する第1係止位置でリブ24との干渉を回避する逃げ部34b(図12参照)が設けられる。尚、リブ24の案内面24aが円筒面から成る場合には、ボス34の周面を多数のピンや突起部により形成してもよい。即ち、ボス34の周面を形成する多数のピンや突起部の包絡面が円筒面となるように形成してもよい。
The boss 34 has a cylindrical surface 34 a in which the second groove 33 is recessed and slides on the guide surface 24 a of the rib 24. Further, on the peripheral surface of the boss 34, an escape portion 34b (see FIG. 12) for avoiding interference with the rib 24 at a first locking position described later is provided. When the guide surface 24a of the rib 24 is a cylindrical surface, the peripheral surface of the boss 34 may be formed by a large number of pins and protrusions. That is, you may form so that the enveloping surface of many pins and protrusions which form the peripheral surface of the boss | hub 34 may become a cylindrical surface.
第2係合突起35は第1係合突起25の円筒面25a、25bとそれぞれ摺動する摺動面35a、35bを有している。カム形成部材30には第1係合突起25との干渉を回避する逃げ溝36が第2係合突起35の周囲に凹設される。
The second engagement protrusion 35 has sliding surfaces 35a and 35b that slide with the cylindrical surfaces 25a and 25b of the first engagement protrusion 25, respectively. In the cam forming member 30, a relief groove 36 that avoids interference with the first engagement protrusion 25 is recessed around the second engagement protrusion 35.
また、上面カバー4cにはカム形成部材30の上方に配されるシャッター支持部40が取り付けられる。シャッター支持部40は溝カム31及びボス34が露出する開口部40aと、第2係合突起35及び逃げ溝36が露出する開口部40bとが開口する。開口部40aを介してヒンジピン21及びリブ24がそれぞれ溝カム31及びボス34と係合する。開口部40bを介して第1係合突起25が第2係合突起35と係合する。
Also, a shutter support portion 40 disposed above the cam forming member 30 is attached to the upper surface cover 4c. The shutter support portion 40 has an opening 40a from which the groove cam 31 and the boss 34 are exposed, and an opening 40b from which the second engagement protrusion 35 and the escape groove 36 are exposed. The hinge pin 21 and the rib 24 engage with the groove cam 31 and the boss 34 through the opening 40a, respectively. The first engagement protrusion 25 engages with the second engagement protrusion 35 through the opening 40b.
シャッター支持部40には開口部40a、40bをそれぞれ開閉する溝カムシャッター41及び逃げ溝シャッター43が取り付けられる。溝カムシャッター41は軸部41aでシャッター支持部40に軸支され、軸部41aに配された捻りバネ42によって開口部40aを閉じる方向に付勢される。溝カムシャッター41は開口部40aを閉じて溝カム31を覆う位置と、開口部40aを開いて溝カム31から退避する位置との間を回動する。
The groove support shutter 40 is provided with a groove cam shutter 41 and a relief groove shutter 43 that open and close the openings 40a and 40b, respectively. The groove cam shutter 41 is pivotally supported on the shutter support portion 40 by a shaft portion 41a, and is biased in a direction to close the opening 40a by a torsion spring 42 disposed on the shaft portion 41a. The groove cam shutter 41 rotates between a position where the opening 40 a is closed to cover the groove cam 31 and a position where the opening 40 a is opened and retracted from the groove cam 31.
逃げ溝シャッター43は軸部43aでシャッター支持部40に軸支され、軸部43aに配された捻りバネ44によって開口部40bを閉じる方向に付勢される。逃げ溝シャッター43は開口部40bを閉じて逃げ溝36を覆う位置と、開口部40bを開いて逃げ溝36から退避する位置との間を回動する。また、シャッター支持部40には溝カムシャッター41及び逃げ溝シャッター43を閉じた際に係止するストッパー47、48が下方に突出して形成される。
The escape groove shutter 43 is pivotally supported on the shutter support portion 40 by a shaft portion 43a, and is biased in a direction to close the opening 40b by a torsion spring 44 disposed on the shaft portion 43a. The escape groove shutter 43 rotates between a position where the opening 40b is closed and the escape groove 36 is covered, and a position where the opening 40b is opened and the escape groove 36 is retracted. The shutter support portion 40 is formed with stoppers 47 and 48 that project downward when the groove cam shutter 41 and the escape groove shutter 43 are closed.
前述の図2において、冷蔵室扉3の取付け時には、まず、下方のヒンジアングル9が開口部5aの下方の前面にネジ止めされる。次に、下方のヒンジピン21に冷蔵室扉3の下面の溝カム31を係合し、冷蔵室扉3が所定の隙間を有してヒンジアングル9上に設置される。次に、冷蔵室扉3の上面の溝カム31にヒンジピン21を係合し、天井プレート7またはヒンジピン形成部材8を前後方向及び左右方向に位置調整する。そして、天井プレート7及びヒンジピン形成部材8がネジ止めされる。
In FIG. 2 described above, when the refrigerator door 3 is attached, the lower hinge angle 9 is first screwed to the lower front surface of the opening 5a. Next, the groove cam 31 on the lower surface of the refrigerator compartment door 3 is engaged with the lower hinge pin 21, and the refrigerator compartment door 3 is installed on the hinge angle 9 with a predetermined gap. Next, the hinge pin 21 is engaged with the groove cam 31 on the upper surface of the refrigerator compartment door 3, and the position of the ceiling plate 7 or the hinge pin forming member 8 is adjusted in the front-rear direction and the left-right direction. Then, the ceiling plate 7 and the hinge pin forming member 8 are screwed.
この時、冷蔵室扉3とヒンジピン形成部材8の下面との隙間が所定値よりも小さい場合は、天井プレート7と本体部2の上面との間にスペーサが挟まれる。天井プレート7はスペーサを挟んで本体部2の上面上で位置調整してネジ止めされる。また、冷蔵室扉3とヒンジピン形成部材8との隙間が所定値よりも大きい場合は、カム形成部材30と冷蔵室扉3の上面カバーとの間にスペーサを挟んでカム形成部材30がネジ止めされる。これにより、上下のヒンジピン21の距離と上下の溝カム31の距離とを所定の範囲に維持し、円滑に冷蔵室扉3を案内することができる。
At this time, when the gap between the refrigerator compartment door 3 and the lower surface of the hinge pin forming member 8 is smaller than a predetermined value, a spacer is sandwiched between the ceiling plate 7 and the upper surface of the main body 2. The ceiling plate 7 is screwed by adjusting the position on the upper surface of the main body 2 with a spacer interposed therebetween. When the gap between the refrigerator compartment door 3 and the hinge pin forming member 8 is larger than a predetermined value, the cam forming member 30 is screwed with a spacer interposed between the cam forming member 30 and the upper surface cover of the refrigerator compartment door 3. Is done. Accordingly, the distance between the upper and lower hinge pins 21 and the distance between the upper and lower groove cams 31 can be maintained within a predetermined range, and the refrigerator compartment door 3 can be smoothly guided.
冷凍室扉4の取付け時にはまず、下方のヒンジアングル11が開口部6aの下方の前面にネジ止めされる。次に、第1支持部材50の第1取付部51がネジ51bによって開口部6aの上方の前面にネジ止めされる。次に、下方のヒンジピン21に冷凍室扉4の下面の溝カム31を係合し、冷凍室扉4が所定の隙間を有してヒンジアングル11上に設置される。
When the freezer compartment door 4 is attached, the lower hinge angle 11 is first screwed to the lower front surface of the opening 6a. Next, the first mounting portion 51 of the first support member 50 is screwed to the front surface above the opening 6a with a screw 51b. Next, the groove cam 31 on the lower surface of the freezer compartment door 4 is engaged with the lower hinge pin 21, and the freezer compartment door 4 is installed on the hinge angle 11 with a predetermined gap.
次に、第1支持部材50の第1突出部54上にヒンジアングル10が設置される。この時、第1突出部54はヒンジピン21から離れた位置に配され、カム機構12との干渉が回避される。ヒンジアングル10は冷凍室扉4の上面の溝カム31にヒンジピン21が係合するように前後方向及び左右方向に位置調整される。そして、ヒンジアングル10がネジ54bにより第1支持部材50の第1突出部54に上方からネジ止めされる。
Next, the hinge angle 10 is installed on the first protrusion 54 of the first support member 50. At this time, the first projecting portion 54 is disposed at a position away from the hinge pin 21, and interference with the cam mechanism 12 is avoided. The hinge angle 10 is adjusted in the front-rear direction and the left-right direction so that the hinge pin 21 engages with the groove cam 31 on the upper surface of the freezer compartment door 4. Then, the hinge angle 10 is screwed to the first projecting portion 54 of the first support member 50 from above by screws 54b.
この時、冷凍室扉4とヒンジアングル10の下面との隙間が所定値よりも小さい場合は、ヒンジアングル10と第1突出部54の上面との間にスペーサ(不図示)が挟まれる。ヒンジアングル10はスペーサを挟んで第1突出部54上で位置調整してネジ止めされる。また、冷凍室扉4とヒンジアングル10との隙間が所定値よりも大きい場合は、カム形成部材30と冷凍室扉4の上面カバー4cとの間にスペーサを挟んでカム形成部材30がネジ止めされる。
At this time, when the gap between the freezer compartment door 4 and the lower surface of the hinge angle 10 is smaller than a predetermined value, a spacer (not shown) is sandwiched between the hinge angle 10 and the upper surface of the first protrusion 54. The hinge angle 10 is screwed by adjusting the position on the first protrusion 54 with the spacer interposed therebetween. When the gap between the freezer compartment door 4 and the hinge angle 10 is larger than a predetermined value, the cam former 30 is screwed with a spacer between the cam former 30 and the upper surface cover 4c of the freezer door 4. Is done.
次に、一方のヒンジピン21を枢支軸として冷蔵室扉4を開き、ヒンジアングル10上に第2支持部材60の第2突出部62が設置される。第2支持部材60は第2取付部61を冷蔵室扉3のヒンジアングル9に当接してネジ62bにより下方からヒンジアングル10に仮止めされる。次に、第2取付部61をネジ61bによりネジ止めした後、ネジ62bを本締めして第2突出部62がヒンジアングル10にネジ止めされる。次に、他方のヒンジピン21を枢支軸として冷蔵室扉4を開き、第2支持部材60が同様に取り付けられる。
Next, the refrigerator compartment door 4 is opened with one hinge pin 21 as a pivot, and the second protrusion 62 of the second support member 60 is installed on the hinge angle 10. The second support member 60 abuts the second mounting portion 61 against the hinge angle 9 of the refrigerator compartment door 3 and is temporarily fixed to the hinge angle 10 from below by a screw 62b. Next, after the second mounting portion 61 is screwed with the screw 61 b, the screw 62 b is finally tightened, and the second projecting portion 62 is screwed to the hinge angle 10. Next, the refrigerator compartment door 4 is opened with the other hinge pin 21 as a pivot, and the second support member 60 is similarly attached.
これにより、上下のヒンジピン21の距離と上下の溝カム31の距離とを所定の範囲に維持し、円滑に冷凍室扉4を案内することができる。また、第2支持部材60によってヒンジピン21に近い位置でヒンジアングル10が支持される。これにより、ヒンジピン21の軸方向の移動を抑制することができる。尚、第2突出部62に貫通孔を設けてヒンジアングル10にネジ孔を設け、ネジ62bにより上方から第2突出部62とヒンジアングル10とをネジ止めしてもよい。
Thus, the distance between the upper and lower hinge pins 21 and the distance between the upper and lower groove cams 31 can be maintained within a predetermined range, and the freezer compartment door 4 can be guided smoothly. Further, the hinge angle 10 is supported by the second support member 60 at a position close to the hinge pin 21. Thereby, the movement of the hinge pin 21 in the axial direction can be suppressed. Alternatively, a through hole may be provided in the second projecting portion 62, a screw hole may be provided in the hinge angle 10, and the second projecting portion 62 and the hinge angle 10 may be screwed from above with a screw 62b.
次に、冷凍室扉4の開閉時の動作を説明する。冷蔵室扉3についても同様に動作する。冷凍室扉4を閉じた状態では両側のカム機構12は図10に示す第1係止位置に配置される。即ち、左右のヒンジピン21が第1溝部32と第2溝部33との連結部に配置される。また、ボス34の逃げ部34b(図12参照)がリブ24の案内面24aに沿って配置される。
Next, the operation when the freezer compartment door 4 is opened and closed will be described. The same operation is performed for the refrigerator compartment door 3. When the freezer compartment door 4 is closed, the cam mechanisms 12 on both sides are disposed at the first locking position shown in FIG. That is, the left and right hinge pins 21 are disposed at the connecting portion between the first groove portion 32 and the second groove portion 33. Further, the relief portion 34 b (see FIG. 12) of the boss 34 is disposed along the guide surface 24 a of the rib 24.
第1溝部32は枢支軸に垂直な面内で前後方向に対して傾斜しているため、左右の第1溝部32の開放端からヒンジピン21が離脱することがない。従って、冷凍室扉41の脱落を防止することができる。
Since the first groove portion 32 is inclined with respect to the front-rear direction in a plane perpendicular to the pivot shaft, the hinge pin 21 is not detached from the open ends of the left and right first groove portions 32. Accordingly, the freezer compartment door 41 can be prevented from falling off.
この時、溝カムシャッター41はリブ24に当接し、捻りバネ42の付勢力に抗してシャッター支持部40の開口部40aを開く。これにより、ヒンジピン21が溝カム31に係合する。同様に、逃げ溝シャッター43は第1係合突起25に当接し、捻りバネ44の付勢力に抗してシャッター支持部40の開口部40bを開く。これにより、第1係合突起25が逃げ溝36内に配される。
At this time, the groove cam shutter 41 contacts the rib 24 and opens the opening 40a of the shutter support portion 40 against the urging force of the torsion spring 42. Thereby, the hinge pin 21 is engaged with the groove cam 31. Similarly, the escape groove shutter 43 abuts on the first engagement protrusion 25 and opens the opening 40 b of the shutter support portion 40 against the urging force of the torsion spring 44. As a result, the first engagement protrusion 25 is disposed in the escape groove 36.
冷凍室扉4を右側から開くと、右側のヒンジピン21は第1溝部32の係合案内によって第1溝部32の開放端に向かって相対移動する。第1溝部32は開放端が冷凍室扉4の内側に向かって傾斜しており、第2溝部33は第1溝部32との連結部から外側に向かって延びている。
When the freezer compartment door 4 is opened from the right side, the right hinge pin 21 is relatively moved toward the open end of the first groove portion 32 by the engagement guide of the first groove portion 32. The first groove portion 32 has an open end inclined toward the inside of the freezer compartment door 4, and the second groove portion 33 extends outward from a connecting portion with the first groove portion 32.
両方のヒンジピン21の間隔は一定のため、右側のヒンジピン21が開放端に向かって内側に相対移動すると、左側のヒンジピン21は第1溝部32から離れる方向に第2溝部33内を外側に相対移動する。これにより、冷凍室扉4は回動しながら左側の軸側から右側の開放側にスライド移動する。
Since the distance between the two hinge pins 21 is constant, when the right hinge pin 21 is relatively moved inward toward the open end, the left hinge pin 21 is relatively moved outward in the second groove 33 in a direction away from the first groove 32. To do. As a result, the freezer compartment door 4 slides from the left shaft side to the right open side while rotating.
そして、図12に示すように、左側のヒンジピン21が第2溝部33の閉じられた端部に到達し、カム機構12が第2係止位置に配置される。この時、左側のボス34の円筒面34aがリブ24の案内面24aと摺動を開始する。これにより、ヒンジピン21と第2溝部33との係合により略前後方向への冷凍室扉4の移動が規制され、ボス34とリブ24との係合により略左右方向への冷凍室扉4の移動が規制される。従って、カム機構12は第2係止位置で冷凍室扉4をスライド規制して回動自在に支持する。
Then, as shown in FIG. 12, the left hinge pin 21 reaches the closed end of the second groove 33, and the cam mechanism 12 is arranged at the second locking position. At this time, the cylindrical surface 34 a of the left boss 34 starts sliding with the guide surface 24 a of the rib 24. Thereby, the movement of the freezer compartment door 4 in the substantially front-rear direction is restricted by the engagement of the hinge pin 21 and the second groove portion 33, and the freezer compartment door 4 in the substantially left-right direction is engaged by the engagement of the boss 34 and the rib 24. Movement is restricted. Accordingly, the cam mechanism 12 slides the freezer compartment door 4 at the second locking position and supports it freely.
また、右側の第1係止部材25の円筒面25bと第2係止部材35の摺動面35bとが摺動し、左側の第1係止部材25の円筒面25aと第2係止部材35の摺動面35aとが摺動する。これにより、冷凍室扉4をより安定して回動させることができる。
Further, the cylindrical surface 25b of the first locking member 25 on the right side and the sliding surface 35b of the second locking member 35 slide, and the cylindrical surface 25a of the first locking member 25 on the left side and the second locking member. The sliding surface 35a of 35 slides. Thereby, the freezer compartment door 4 can be rotated more stably.
更に冷凍室扉4が開かれると、図13に示すように、右側のヒンジピン21と溝カム31との係合が解除される。また、右側の第1係止部材25と第2係止部材35との係合が解除される。これにより、右側のカム機構12の係合が解除される。冷凍室扉4は左側のヒンジピン21を中心としてスライド規制されて回動する。
When the freezer compartment door 4 is further opened, the engagement between the right hinge pin 21 and the groove cam 31 is released as shown in FIG. Further, the engagement between the right first locking member 25 and the second locking member 35 is released. Thereby, the engagement of the right cam mechanism 12 is released. The freezer compartment door 4 is slid and regulated around the hinge pin 21 on the left side.
この時、右側の溝カムシャッター41及び逃げ溝シャッター43はそれぞれ捻りバネ42、44の付勢力によって開口部40a、40bを閉じ、ストッパー47、48により係止される。これにより、右側の溝カムシャッター41により溝カム31及びボス34が覆われ、逃げ溝シャッター43により第2係合突起35及び逃げ溝36が覆われる。
At this time, the right groove cam shutter 41 and the escape groove shutter 43 close the openings 40a and 40b by the urging forces of the torsion springs 42 and 44, respectively, and are locked by the stoppers 47 and 48. Accordingly, the groove cam 31 and the boss 34 are covered by the right groove cam shutter 41, and the second engagement protrusion 35 and the escape groove 36 are covered by the escape groove shutter 43.
更に冷凍室扉4が開かれると、図14に示すように、左側の第1係合突起25と第2係合突起35との係合が解除される。そして、第2溝部33とヒンジピン21との係合及びボス34とリブ24との係合によって冷凍室扉4が回動する。この時、左側の逃げ溝シャッター43は捻りバネ44の付勢力によって開口部40bを閉じ、ストッパー48により係止される。これにより、左側の逃げ溝シャッター43により第2係合突起35及び逃げ溝36が覆われる。
When the freezer compartment door 4 is further opened, the engagement between the first engagement protrusion 25 and the second engagement protrusion 35 on the left side is released as shown in FIG. Then, the freezer compartment door 4 is rotated by the engagement between the second groove 33 and the hinge pin 21 and the engagement between the boss 34 and the rib 24. At this time, the left escape groove shutter 43 closes the opening 40 b by the urging force of the torsion spring 44 and is locked by the stopper 48. Accordingly, the second engagement protrusion 35 and the escape groove 36 are covered by the left escape groove shutter 43.
冷凍室扉4を閉じる場合には左右のカム機構12は上記と逆の動作が行われる。この時、溝カムシャッター41はヒンジピン21との当接により開き始めてリブ24との当接により更に開かれ、溝カム31から退避する。逃げ溝シャッター43は第1係合突起25に当接して開かれ、逃げ溝36から退避する。
When the freezer compartment door 4 is closed, the left and right cam mechanisms 12 perform the reverse operation. At this time, the groove cam shutter 41 starts to be opened by contact with the hinge pin 21, is further opened by contact with the rib 24, and retracts from the groove cam 31. The escape groove shutter 43 is opened in contact with the first engagement protrusion 25 and retracts from the escape groove 36.
また、冷凍室扉4を左側から開閉すると、左右のカム機構12は上記と左右対称に推移する。
Further, when the freezer compartment door 4 is opened and closed from the left side, the left and right cam mechanisms 12 change symmetrically with the above.
本実施形態によると、ヒンジピン21と溝カム31とが係合する一対のカム機構12によって二方向から択一的に扉(冷蔵室扉4や冷凍室扉6)を開閉し、扉を開いた際に溝カム31を覆うとともに扉を閉じた際に溝カム31から退避する溝カムシャッター41を設けたので、扉を開いた際に溝カム31への異物の侵入を防止することができる。従って、扉を閉じることができない不具合を回避することができ、扉開閉機構を備えた冷蔵庫1の使用性を向上することができる。また、扉を開いた際に溝カム31が視認されないため、冷蔵庫1の美感を向上することができる。
According to the present embodiment, the doors (the refrigerator compartment door 4 and the freezer compartment door 6) are opened and closed alternatively from two directions by the pair of cam mechanisms 12 in which the hinge pin 21 and the groove cam 31 are engaged, and the door is opened. Since the groove cam shutter 41 that covers the groove cam 31 and retracts from the groove cam 31 when the door is closed is provided, foreign matter can be prevented from entering the groove cam 31 when the door is opened. Therefore, the malfunction which cannot close a door can be avoided, and the usability of the refrigerator 1 provided with the door opening / closing mechanism can be improved. Moreover, since the groove cam 31 is not visually recognized when the door is opened, the aesthetics of the refrigerator 1 can be improved.
特に、冷蔵室扉4や冷凍室扉6の上面に溝カム31が設けられた場合には溝カム31に異物が侵入しやすくなるとともに視認されやすくなる。従って、ヒンジピン21を本体部2(機器本体)に設けて溝カム31及び溝カムシャッター41を扉の上面に設けた場合に冷蔵庫1の使用性及び美感をより向上することができる。
In particular, when the groove cam 31 is provided on the upper surface of the refrigerator compartment door 4 or the freezer compartment door 6, foreign matter easily enters the groove cam 31 and is easily visible. Therefore, when the hinge pin 21 is provided in the main body 2 (equipment main body) and the groove cam 31 and the groove cam shutter 41 are provided on the upper surface of the door, the usability and aesthetics of the refrigerator 1 can be further improved.
また、扉の閉成時に両側のカム機構12が対称な第1係止位置をとるとともに、扉の一方を開く際に両方のカム機構12によって扉が軸側から開放側へスライドして他方のカム機構12が第2係止位置をとり、第2係止位置で扉をスライド規制して回動自在に支持する。従って、二方向から択一的に扉を開閉する扉開閉機構を容易に実現することができる。
Further, when the door is closed, the cam mechanisms 12 on both sides take a symmetric first locking position, and when opening one of the doors, the door is slid from the shaft side to the open side by both cam mechanisms 12, and the other side The cam mechanism 12 takes the second locking position, and the door is slid at the second locking position to support it rotatably. Accordingly, it is possible to easily realize a door opening / closing mechanism that opens and closes the door alternatively from two directions.
また、ヒンジピン21と同心の円弧上に沿う案内面24aを有するリブ24と、第2係止位置で案内面24aに摺動してヒンジピン21のスライドを規制するボス34とを備え、溝カムシャッター41が回動自在に支持されて溝カム31を覆う方向に付勢されるとともにヒンジピン21またはリブ24との当接によって溝カム31から退避する。これにより、溝カム31を覆うとともに溝カム31から退避する溝カムシャッター41を容易に実現することができる。
The groove cam shutter includes a rib 24 having a guide surface 24a along a concentric arc concentric with the hinge pin 21 and a boss 34 that slides on the guide surface 24a at the second locking position to restrict sliding of the hinge pin 21. 41 is rotatably supported and urged in a direction to cover the groove cam 31 and retracts from the groove cam 31 by contact with the hinge pin 21 or the rib 24. Thereby, the groove cam shutter 41 that covers the groove cam 31 and retracts from the groove cam 31 can be easily realized.
また、両方のヒンジピン21と同心の円筒面25a、25bを有する第1係合突起25と、第1係合突起25を摺動案内する第2係合突起35と、第2係合突起35の周囲に凹設して第1係合突起25との干渉を回避する逃げ溝36とを有し、扉を開いた際に逃げ溝36を覆うとともに扉を閉じた際に逃げ溝36から退避する逃げ溝シャッター43を設けている。
Further, a first engagement protrusion 25 having cylindrical surfaces 25 a and 25 b concentric with both hinge pins 21, a second engagement protrusion 35 for slidingly guiding the first engagement protrusion 25, and a second engagement protrusion 35 It has a relief groove 36 that is recessed in the periphery and avoids interference with the first engagement protrusion 25, covers the relief groove 36 when the door is opened, and retreats from the relief groove 36 when the door is closed. An escape groove shutter 43 is provided.
これにより、扉を開いた際に逃げ溝36への異物の侵入を防止することができる。従って、扉を閉じることができない不具合をより確実に回避することができるとともに、冷蔵庫1の美感をより向上することができる。
Thereby, it is possible to prevent foreign matter from entering the escape groove 36 when the door is opened. Therefore, the trouble that the door cannot be closed can be avoided more reliably, and the aesthetics of the refrigerator 1 can be further improved.
特に、冷蔵室扉4や冷凍室扉6の上面に逃げ溝36が設けられた場合には逃げ溝36に異物が侵入しやすくなるとともに視認されやすくなる。従って、逃げ溝36を扉の上面に設けた場合に冷蔵庫1の使用性及び美感をより向上することができる。尚、逃げ溝36を第1係合突起25に対して十分広い範囲に形成し、異物が逃げ溝36に侵入しても扉を閉じることができるようにしてもよい。
In particular, when the escape groove 36 is provided on the upper surface of the refrigerator compartment door 4 or the freezer compartment door 6, foreign matter easily enters the escape groove 36 and is easily visible. Therefore, when the escape groove 36 is provided on the upper surface of the door, the usability and aesthetics of the refrigerator 1 can be further improved. The escape groove 36 may be formed in a sufficiently wide range with respect to the first engagement protrusion 25 so that the door can be closed even if foreign matter enters the escape groove 36.
また、逃げ溝シャッター43が回動自在に支持されて逃げ溝36を覆う方向に付勢されるとともに第1係合突起25との当接によって逃げ溝36から退避する。これにより、逃げ溝36を覆うとともに逃げ溝36から退避する逃げ溝シャッター43を容易に実現することができる。
Further, the escape groove shutter 43 is rotatably supported and urged in a direction to cover the escape groove 36, and retracts from the escape groove 36 by contact with the first engagement protrusion 25. Thereby, the escape groove shutter 43 which covers the escape groove 36 and retracts from the escape groove 36 can be easily realized.
本実施形態によると、第1支持部材50の第1取付部51が開口部6aの上方の前面にネジ止めされ、第1取付部51から前方に突出する第1突出部54の上面に設置したヒンジアングル10を上方からネジ止めする。これにより、ヒンジアングル10を第1突出部54上で左右方向及び前後方向に移動させて容易に位置調整して固定することができる。この時、第1突出部54とヒンジアングル10との間にスペーサを挟むことでヒンジアングル10の下面と冷凍室扉4の上面との隙間を容易に広げて位置調整することができる。従って、扉開閉機構の製造工数を削減することができる。
According to the present embodiment, the first mounting portion 51 of the first support member 50 is screwed to the front surface above the opening 6 a and is installed on the upper surface of the first protruding portion 54 that protrudes forward from the first mounting portion 51. The hinge angle 10 is screwed from above. Accordingly, the hinge angle 10 can be easily adjusted in position and fixed by moving the hinge angle 10 in the left-right direction and the front-rear direction on the first protrusion 54. At this time, by interposing a spacer between the first protrusion 54 and the hinge angle 10, the gap between the lower surface of the hinge angle 10 and the upper surface of the freezer compartment door 4 can be easily widened and the position can be adjusted. Therefore, it is possible to reduce the number of manufacturing steps for the door opening / closing mechanism.
また、第1突出部54の外側に配した第2支持部材60の第2突出部62の下面にヒンジアングル10が当接して第2支持部材60及びヒンジアングル10がネジ止めされるので、第2支持部材60を容易に取り付けできるとともに、ヒンジピン21近傍でヒンジアングル10を補強することができる。従って、溝カム31に異物が侵入した場合等のヒンジピン21の軸方向の移動を抑制することができ、冷凍室扉4の脱落を防止することができる。
Further, the hinge angle 10 abuts on the lower surface of the second protrusion 62 of the second support member 60 disposed outside the first protrusion 54, and the second support member 60 and the hinge angle 10 are screwed. 2 The support member 60 can be easily attached, and the hinge angle 10 can be reinforced in the vicinity of the hinge pin 21. Therefore, the axial movement of the hinge pin 21 when a foreign object enters the groove cam 31 can be suppressed, and the freezer compartment door 4 can be prevented from falling off.
加えて、上面にヒンジアングル10が当接する第1突出部54がヒンジピン21から離れ、第2突出部62の下面にヒンジアングル10が当接する。このため、第1突出部54とカム機構12との干渉を防止するとともに第2支持部材60とカム機構12との干渉を防止することができる。
In addition, the first protrusion 54 with which the hinge angle 10 abuts on the upper surface is separated from the hinge pin 21, and the hinge angle 10 abuts on the lower surface of the second protrusion 62. For this reason, it is possible to prevent interference between the first projecting portion 54 and the cam mechanism 12 and to prevent interference between the second support member 60 and the cam mechanism 12.
また、溝カム31が形成されるカム形成部材30を冷凍室扉4の上面にネジ止めしたので、カム形成部材30と冷凍室扉4の上面との間にスペーサを挟んでヒンジアングル10の下面と冷凍室扉4の上面との隙間を容易に狭めることができる。
Further, since the cam forming member 30 in which the groove cam 31 is formed is screwed to the upper surface of the freezer compartment door 4, the lower surface of the hinge angle 10 is sandwiched between the cam forming member 30 and the upper surface of the freezer compartment door 4. And the upper surface of the freezer compartment door 4 can be easily narrowed.
また、冷凍室扉4の上面とカム形成部材30との間にスペーサを配して、ヒンジアングル10の下面と冷凍室扉4の上面との隙間を適正にすることができる。
Further, a spacer can be provided between the upper surface of the freezer compartment door 4 and the cam forming member 30 to make the gap between the lower surface of the hinge angle 10 and the upper surface of the freezer compartment door 4 appropriate.
また、第1突出部54とヒンジアングル10との間にスペーサを配して、ヒンジアングル10の下面と冷凍室扉4の上面との隙間を適正にすることができる。
Further, a spacer can be arranged between the first projecting portion 54 and the hinge angle 10 so that the gap between the lower surface of the hinge angle 10 and the upper surface of the freezer compartment door 4 can be made appropriate.
また、第1取付部51が第2取付部61の背後を通って第2支持部材60の外側に延びる延設部52と、延接部52の端部から前方に突出してヒンジアングル10に近接して対向する対向部55とを有した平面視L字型に形成されるので、対向部55の上下方向の厚みが大きく形成される。これにより、溝カム31に異物が侵入した場合等のヒンジピン21の軸方向の移動をより確実に防止することができる。
In addition, the first attachment portion 51 extends to the outside of the second support member 60 through the back of the second attachment portion 61, and protrudes forward from the end portion of the extension portion 52 to be close to the hinge angle 10. Thus, since the opposing portion 55 is formed in an L shape in plan view, the opposing portion 55 is formed to have a large thickness in the vertical direction. Thereby, the movement of the hinge pin 21 in the axial direction when a foreign substance enters the groove cam 31 can be prevented more reliably.
本実施形態において、カム機構12はヒンジピン21及びリブ24を本体部2に設けて溝カム31及びボス34を扉に設けているが、ヒンジピン21及びリブ24を扉に設けて溝カム31及びボス34を本体部2に設けてもよい。この時、扉の下面にヒンジピン21が設けられた場合には上方に面する溝カム31に異物が侵入しやすくなるとともに視認されやすくなる。従って、ヒンジピン21を扉の下面に設けて溝カム31及び溝カムシャッター41を本体部2(機器本体)に設けた場合に冷蔵庫1の使用性及び美感をより向上することができる。
In this embodiment, the cam mechanism 12 is provided with the hinge pin 21 and the rib 24 on the main body 2 and the groove cam 31 and the boss 34 are provided on the door, but the hinge pin 21 and the rib 24 are provided on the door and the groove cam 31 and the boss are provided on the door. 34 may be provided in the main body 2. At this time, when the hinge pin 21 is provided on the lower surface of the door, foreign matter easily enters the groove cam 31 facing upward and is easily recognized. Therefore, when the hinge pin 21 is provided on the lower surface of the door and the groove cam 31 and the groove cam shutter 41 are provided on the main body 2 (equipment main body), the usability and aesthetics of the refrigerator 1 can be further improved.
また、カム機構12は扉に設けた第2係合突起35の周囲に逃げ溝36を凹設しているが、本体部2の第1係合突起25の周囲に第2係合突起35との干渉を回避する逃げ溝36を凹設してもよい。この時、本体部2に設けた逃げ溝36が上方に面して配される場合に、冷蔵庫1の使用性及び美感をより向上することができる。
The cam mechanism 12 has a relief groove 36 formed around the second engagement projection 35 provided on the door. The second engagement projection 35 is provided around the first engagement projection 25 of the main body 2. A relief groove 36 that avoids the interference may be provided. At this time, when the escape groove 36 provided in the main body 2 is arranged facing upward, the usability and aesthetics of the refrigerator 1 can be further improved.
また、一対のカム機構12を有する扉開閉機構を備えた冷蔵庫1について説明しているが、同様の扉開閉機構を他の機器に設けてもよい。この時、一対のカム機構12を扉の上下または前後に設けて上下または前後から扉を開くようにしてもよい。
Moreover, although the refrigerator 1 provided with the door opening / closing mechanism which has a pair of cam mechanism 12 is demonstrated, you may provide the same door opening / closing mechanism in another apparatus. At this time, a pair of cam mechanisms 12 may be provided on the top and bottom or front and back of the door to open the door from the top and bottom or front and back.
本発明によると、扉を二方向から択一的に開閉する両開きの扉開閉機構を備えた冷蔵庫等の機器に利用することができる。
According to the present invention, the present invention can be used for a device such as a refrigerator having a double door opening / closing mechanism that opens / closes a door alternatively from two directions.
1 冷蔵庫
2 本体部
3 冷蔵室扉
4 冷凍室扉
4c 上面カバー
5 冷蔵室
6 冷凍室
7 天井プレート
8 ヒンジピン形成部材
9、10、11 ヒンジアングル
12 カム機構
21 ヒンジピン
24 リブ
24a 案内面
25 第1係合突起
30 カム形成部材
31 溝カム
32 第1溝部
33 第2溝部
34 ボス
34a 円筒面
34b 逃げ部
35 第2係合突起
36 逃げ溝
40 シャッター支持部
41 溝カムシャッター
42、44 捻りバネ
43 逃げ溝シャッター
47、48 ストッパ
50 第1支持部材
51 第1取付部
52 延設部
54 第1突出部
55、56、57 対向部
60 第2支持部材
61 第2取付部
62 第2突出部 DESCRIPTION OFSYMBOLS 1 Refrigerator 2 Main-body part 3 Refrigeration room door 4 Freezing room door 4c Top cover 5 Refrigeration room 6 Freezing room 7 Ceiling plate 8 Hinge pin formation member 9, 10, 11 Hinge angle 12 Cam mechanism 21 Hinge pin 24 Rib 24a Guide surface 25 1st engagement Joint projection 30 Cam forming member 31 Groove cam 32 First groove portion 33 Second groove portion 34 Boss 34a Cylindrical surface 34b Escape portion 35 Second engagement projection 36 Escape groove 40 Shutter support portion 41 Groove cam shutter 42, 44 Torsion spring 43 Escape groove Shutter 47, 48 Stopper 50 First support member 51 First attachment portion 52 Extension portion 54 First protrusion 55, 56, 57 Opposing portion 60 Second support member 61 Second attachment portion 62 Second protrusion
2 本体部
3 冷蔵室扉
4 冷凍室扉
4c 上面カバー
5 冷蔵室
6 冷凍室
7 天井プレート
8 ヒンジピン形成部材
9、10、11 ヒンジアングル
12 カム機構
21 ヒンジピン
24 リブ
24a 案内面
25 第1係合突起
30 カム形成部材
31 溝カム
32 第1溝部
33 第2溝部
34 ボス
34a 円筒面
34b 逃げ部
35 第2係合突起
36 逃げ溝
40 シャッター支持部
41 溝カムシャッター
42、44 捻りバネ
43 逃げ溝シャッター
47、48 ストッパ
50 第1支持部材
51 第1取付部
52 延設部
54 第1突出部
55、56、57 対向部
60 第2支持部材
61 第2取付部
62 第2突出部 DESCRIPTION OF
Claims (14)
- 機器本体の開口部を覆う扉を、前記機器本体及び前記扉の対向する両端部に対称に配された一対のカム機構によって二方向から択一的に開閉する両開きの扉開閉機構において、前記カム機構が、前記機器本体及び前記扉の一方に設けられて前記扉の枢支軸を形成するヒンジピンと、前記機器本体及び前記扉の他方に設けられて前記ヒンジピンを係合案内する溝カムとを有し、前記扉を開いた際に前記溝カムを覆うとともに前記扉を閉じた際に前記溝カムから退避する溝カムシャッターを設けたことを特徴とする扉開閉機構。 In the double door opening / closing mechanism that opens and closes the door that covers the opening of the device main body alternately from two directions by a pair of cam mechanisms that are symmetrically arranged on both the opposite ends of the device main body and the door, the cam A mechanism is provided on one of the device main body and the door to form a hinge pin that forms the pivot shaft of the door, and a groove cam that is provided on the other of the device main body and the door to guide the hinge pin. And a door opening / closing mechanism provided with a groove cam shutter that covers the groove cam when the door is opened and retracts from the groove cam when the door is closed.
- 前記扉の閉成時に両側の前記カム機構が対称な第1係止位置をとるとともに、前記扉の一方を開く際に両方の前記カム機構によって前記扉が軸側から開放側へスライドして他方の前記カム機構が第2係止位置をとり、第2係止位置で前記扉をスライド規制して回動自在に支持することを特徴とする請求項1に記載の扉開閉機構。 When the door is closed, the cam mechanisms on both sides take a symmetric first locking position, and when opening one of the doors, the door is slid from the shaft side to the open side by both of the cam mechanisms. The door opening / closing mechanism according to claim 1, wherein the cam mechanism takes a second locking position, and the door is slidably regulated at the second locking position to be pivotally supported.
- 前記ヒンジピンと同心の円弧上に沿って形成される案内面を有するリブと、第2係止位置で前記案内面に摺動して前記ヒンジピンのスライドを規制するボスとを備え、前記溝カムシャッターが回動自在に支持されて前記溝カムを覆う方向に付勢されるとともに前記ヒンジピンまたは前記リブとの当接によって前記溝カムから退避することを特徴とする請求項2に記載の扉開閉機構。 A groove cam shutter comprising: a rib having a guide surface formed along an arc concentric with the hinge pin; and a boss that slides on the guide surface at a second locking position to restrict sliding of the hinge pin. 3. The door opening / closing mechanism according to claim 2, wherein the door is pivotally supported and biased in a direction to cover the groove cam and retracts from the groove cam by contact with the hinge pin or the rib. .
- 前記ヒンジピンを前記機器本体に設けるとともに、前記溝カム及び前記溝カムシャッターを前記扉の上面に設けたことを特徴とする請求項1に記載の扉開閉機構。 The door opening / closing mechanism according to claim 1, wherein the hinge pin is provided in the device main body, and the groove cam and the groove cam shutter are provided on an upper surface of the door.
- 前記ヒンジピンを前記扉の下面に設けるとともに、前記溝カム及び前記溝カムシャッターを前記機器本体に設けたことを特徴とする請求項1に記載の扉開閉機構。 2. The door opening / closing mechanism according to claim 1, wherein the hinge pin is provided on a lower surface of the door, and the groove cam and the groove cam shutter are provided in the device main body.
- 前記カム機構が、両方の前記ヒンジピン間に配されて両方の前記ヒンジピンと同心の円筒面が対向して形成される第1係合突起と、第1係合突起を摺動案内する第2係合突起と、第2係合突起の周囲に凹設して第1係合突起との干渉を回避する逃げ溝とを有し、前記扉を開いた際に前記逃げ溝を覆うとともに前記扉を閉じた際に前記逃げ溝から退避する逃げ溝シャッターを設けたことを特徴とする請求項1に記載の扉開閉機構。 The cam mechanism is disposed between both of the hinge pins, a first engagement protrusion formed so as to face a cylindrical surface concentric with both the hinge pins, and a second engagement for slidingly guiding the first engagement protrusion. And a relief groove that is recessed around the second engagement protrusion to avoid interference with the first engagement protrusion, covers the escape groove when the door is opened, and The door opening / closing mechanism according to claim 1, further comprising a relief groove shutter that retracts from the relief groove when the door is closed.
- 前記逃げ溝シャッターが回動自在に支持されて前記逃げ溝を覆う方向に付勢されるとともに第1係合突起との当接によって前記逃げ溝から退避することを特徴とする請求項6に記載の扉開閉機構。 7. The escape groove shutter according to claim 6, wherein the escape groove shutter is rotatably supported and is urged in a direction to cover the escape groove and retracts from the escape groove by contact with the first engagement protrusion. Door opening and closing mechanism.
- 機器本体の開口部を覆う扉を、前記機器本体及び前記扉の左右端に対称に配された一対のカム機構によって左右から択一的に開閉する両開きの扉開閉機構において、
前記扉の枢支軸を形成する左右のヒンジピンを一体に保持するヒンジアングルと、
前記開口部の上方の前面にネジ止めされる第1取付部と第1取付部から前方に突出する第1突出部とを有し、第1突出部の上面に設置した前記ヒンジアングルを上方からネジ止めする第1支持部材と、
第1突出部の左右方向の外側に配されるとともに、前記開口部の上方の前面にネジ止めされる第2取付部と第2取付部から前方に突出する第2突出部とを有し、第2突出部の下面に当接する前記ヒンジアングルを第2突出部にネジ止めする第2支持部材と、
前記扉の上面の左右端にそれぞれ配されて前記ヒンジピンに係合して前記扉を案内する溝カムと、
を備えたことを特徴とする扉開閉機構。 In the double door opening and closing mechanism that opens and closes the door that covers the opening of the device body alternatively from the left and right by a pair of cam mechanisms symmetrically arranged on the left and right ends of the device body and the door,
A hinge angle for integrally holding the left and right hinge pins forming the pivot shaft of the door;
The first mounting portion screwed to the front surface above the opening and a first protruding portion protruding forward from the first mounting portion, the hinge angle installed on the upper surface of the first protruding portion from above A first support member to be screwed;
A second mounting portion that is arranged on the outer side in the left-right direction of the first protruding portion and screwed to the front surface above the opening, and a second protruding portion that protrudes forward from the second mounting portion; A second support member for screwing the hinge angle contacting the lower surface of the second protrusion to the second protrusion;
Groove cams that are respectively arranged on the left and right ends of the upper surface of the door and engage with the hinge pins to guide the door;
A door opening and closing mechanism characterized by comprising: - 前記溝カムが形成されるカム形成部材を前記扉の上面にネジ止めしたことを特徴とする請求項8に記載の扉開閉機構。 The door opening / closing mechanism according to claim 8, wherein a cam forming member on which the groove cam is formed is screwed to an upper surface of the door.
- 前記扉の上面と前記カム形成部材との間にスペーサを配したことを特徴とする請求項9に記載の扉開閉機構。 The door opening / closing mechanism according to claim 9, wherein a spacer is disposed between an upper surface of the door and the cam forming member.
- 第1突出部と前記ヒンジアングルとの間にスペーサを配したことを特徴とする請求項8に記載の扉開閉機構。 The door opening / closing mechanism according to claim 8, wherein a spacer is disposed between the first projecting portion and the hinge angle.
- 第1取付部は、第2取付部の背後を通って第2支持部材の外側に延びる延設部と、前記延接部の端部から前方に突出して前記ヒンジアングルに近接して対向する対向部とを有した平面視L字型に形成されることを特徴とする請求項8に記載の扉開閉機構。 The first attachment portion extends to the outside of the second support member through the back of the second attachment portion, and is opposed to protrude forward from the end portion of the extension portion and face the hinge angle in the vicinity. The door opening / closing mechanism according to claim 8, wherein the door opening / closing mechanism is formed in an L shape in plan view having a portion.
- 前記扉を開いた際に前記溝カムを覆うとともに前記扉を閉じた際に前記溝カムから退避する溝カムシャッターを設けたことを特徴とする請求項8に記載の扉開閉機構。 The door opening and closing mechanism according to claim 8, further comprising a groove cam shutter that covers the groove cam when the door is opened and retracts from the groove cam when the door is closed.
- 請求項1~請求項13のいずれかに記載の扉開閉機構を備えたことを特徴とする冷蔵庫。 A refrigerator comprising the door opening / closing mechanism according to any one of claims 1 to 13.
Priority Applications (1)
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CN201180035657.6A CN103026156B (en) | 2010-07-21 | 2011-06-10 | Door opening/closing mechanism and refrigerator |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2010163947A JP4990999B2 (en) | 2010-07-21 | 2010-07-21 | Door opening / closing mechanism and refrigerator |
JP2010-163947 | 2010-07-21 | ||
JP2010-178200 | 2010-08-06 | ||
JP2010178200A JP4833349B1 (en) | 2010-08-06 | 2010-08-06 | Door opening / closing mechanism and refrigerator |
Publications (1)
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WO2012011330A1 true WO2012011330A1 (en) | 2012-01-26 |
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PCT/JP2011/063317 WO2012011330A1 (en) | 2010-07-21 | 2011-06-10 | Door opening/closing mechanism and refrigerator |
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CN (1) | CN103026156B (en) |
MY (1) | MY157113A (en) |
WO (1) | WO2012011330A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3096098A1 (en) * | 2015-05-20 | 2016-11-23 | BSH Hausgeräte GmbH | Household refrigeration device comprising a bearing element having a pivot axle and a pivot axle outside of the lateral recessed grip |
Families Citing this family (4)
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CN104075531B (en) * | 2014-07-22 | 2017-12-29 | 合肥晶弘电器有限公司 | It is a kind of can two-way opened close the door refrigerator |
CN111542671B (en) * | 2017-12-29 | 2021-09-28 | 夏普株式会社 | Door opening device, door opening and closing device, and refrigerator |
CN112219078A (en) * | 2018-06-08 | 2021-01-12 | 夏普株式会社 | Door opening and closing mechanism, storage cabinet and handle structure |
JP2023095396A (en) * | 2021-12-24 | 2023-07-06 | 青島海爾洗衣机有限公司 | washing machine |
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JPH0277572U (en) * | 1988-12-05 | 1990-06-14 | ||
JP2009092285A (en) * | 2007-10-05 | 2009-04-30 | Sharp Corp | Door opening and closing mechanism |
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JPH0781776B2 (en) * | 1988-12-05 | 1995-09-06 | シャープ株式会社 | Door opener |
JP3479410B2 (en) * | 1996-05-14 | 2003-12-15 | シャープ株式会社 | Door opening and closing mechanism |
TW536613B (en) * | 1999-10-25 | 2003-06-11 | Sharp Kk | Door opening/closing mechanism and manufacturing method thereof |
KR100707443B1 (en) * | 2005-03-12 | 2007-04-13 | 엘지전자 주식회사 | Door opening and closing device for refrigerator |
JP4827746B2 (en) * | 2007-01-05 | 2011-11-30 | シャープ株式会社 | Door opening / closing mechanism |
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2011
- 2011-06-10 WO PCT/JP2011/063317 patent/WO2012011330A1/en active Application Filing
- 2011-06-10 CN CN201180035657.6A patent/CN103026156B/en not_active Expired - Fee Related
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Patent Citations (2)
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JPH0277572U (en) * | 1988-12-05 | 1990-06-14 | ||
JP2009092285A (en) * | 2007-10-05 | 2009-04-30 | Sharp Corp | Door opening and closing mechanism |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3096098A1 (en) * | 2015-05-20 | 2016-11-23 | BSH Hausgeräte GmbH | Household refrigeration device comprising a bearing element having a pivot axle and a pivot axle outside of the lateral recessed grip |
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CN103026156A (en) | 2013-04-03 |
MY157113A (en) | 2016-05-13 |
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