TW201910704A - Door opening and closing mechanism - Google Patents

Door opening and closing mechanism Download PDF

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Publication number
TW201910704A
TW201910704A TW107104008A TW107104008A TW201910704A TW 201910704 A TW201910704 A TW 201910704A TW 107104008 A TW107104008 A TW 107104008A TW 107104008 A TW107104008 A TW 107104008A TW 201910704 A TW201910704 A TW 201910704A
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Taiwan
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door
closing
self
opening
closed
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TW107104008A
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Chinese (zh)
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TWI692602B (en
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長濃篤史
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日商夏普股份有限公司
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
    • E05F1/04—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights for wings which lift during movement, operated by their own weight
    • E05F1/06—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

A door opening and closing mechanism comprising a body 2 that has an opening side 3a and a door 4 that opens and closes the opening side 3a, wherein the door opening and closing mechanism comprises: a first self-closing mechanism unit that biases, in the closing direction, the door 4 within an interval T1 from a prescribed first self-opening and -closing start position P2 to a first self-closing end position P0 in which the door 4 is closed; and a second self-closing mechanism unit that biases, in the closing direction, the door 4 within an interval T2 from a second self-opening and -closing start position P4 closer to the door opened side than the first self-opening and -closing start position P2 to a second self-closing end position P1 closer to the door closed side than the first self-opening and -closing start position P2.

Description

門開閉機構Door opening and closing mechanism

本發明關於對門進行開閉的門開閉機構。The present invention relates to a door opening and closing mechanism that opens and closes a door.

在專利文獻1揭示現有的門開閉機構。該門開閉機構係利用鉛直的樞支軸將門樞支在前面具有開口面的本體部的一端部，門進行旋動而對開口面進行開閉。在本體部的上下壁面鉛直地配置形成樞支軸的一對鉸鏈銷（hinge pin）。在下方的鉸鏈銷的座面形成相對於水平往周方向傾斜的第一傾斜面及第二傾斜面。在門的上下面設置鉸鏈銷嵌合的軸承部。在下方的軸承部的下面設置向下方突出的從動件。Patent Document 1 discloses a conventional door opening and closing mechanism. The door opening and closing mechanism pivotally supports the door at one end portion of the main body portion having the opening surface by a vertical pivot shaft, and the door is rotated to open and close the opening surface. A pair of hinge pins forming a pivot shaft are vertically disposed on the upper and lower wall surfaces of the body portion. The seat surface of the lower hinge pin forms a first inclined surface and a second inclined surface that are inclined with respect to the horizontal direction. A bearing portion to which the hinge pin is fitted is provided on the upper and lower sides of the door. A follower that protrudes downward is provided under the lower bearing portion.

從動件以門的從關閉狀態起的旋動角度成為第一旋動角度以下時在第一傾斜面進行滑動，且在成為第二旋動角度以上時在第二傾斜面進行滑動的方式定位。The follower slides on the first inclined surface when the turning angle of the door from the closed state becomes less than the first turning angle, and slides on the second inclined surface when the second turning angle is equal to or greater than the second turning angle .

當將門從關閉狀態打開時，從動件在第一傾斜面進行滑動而上升。當將門打開至第二旋動角度而從動件配置在第二傾斜面上時，門因自身重量而被往打開的方向施力。從動件因門的自身重量而在第二傾斜面進行滑動而下降，門被打開。由此，即使在關閉門的方向上施加微弱的力，從動件也能夠抵接於第二傾斜面而使門保持打開的狀態。When the door is opened from the closed state, the follower slides on the first inclined surface and rises. When the door is opened to the second rotation angle and the follower is disposed on the second inclined surface, the door is biased in the direction of opening due to its own weight. The follower slides down on the second inclined surface due to the weight of the door, and the door is opened. Thereby, even if a weak force is applied in the direction in which the door is closed, the follower can abut against the second inclined surface to keep the door open.

當將門從打開的狀態關閉時，從動件在第二傾斜面進行滑動而上升。當將門關閉至第一旋動角度而從動件配置在第一傾斜面上時，門因自身重量而被往關閉的方向施力。從動件因門的自身重量而在第一傾斜面進行滑動而下降，門被關閉。由此，門自行關閉，能夠防止門未完全關閉的狀態。When the door is closed from the open state, the follower slides on the second inclined surface and rises. When the door is closed to the first rotation angle and the follower is disposed on the first inclined surface, the door is biased in the direction of closing due to its own weight. The follower slides down on the first inclined surface due to the weight of the door, and the door is closed. Thereby, the door is closed by itself, and the state in which the door is not completely closed can be prevented.

專利文獻1：日本特開2007 – 24460號公報（第4頁 – 第8頁、第12圖 ）Patent Document 1: Japanese Patent Laid-Open No. 2007-24460 (page 4 – page 8, 12)

然而，根據上述現有的門開閉機構，若第一旋動角度小，則會有在關閉門時從動件未到達第一傾斜面而產生門未完全關閉的狀態的情況。另一方面，若第一旋動角度大，則會有在將門打開至期望的位置時從動件未從第一傾斜面上脫離，而與使用者的意圖相反地門自行關閉的情況。因此，存在有門開閉機構的便利性不佳的問題。However, according to the above-described conventional door opening and closing mechanism, when the first turning angle is small, there is a case where the follower does not reach the first inclined surface when the door is closed, and the door is not completely closed. On the other hand, if the first rotation angle is large, there is a case where the follower is not disengaged from the first inclined surface when the door is opened to a desired position, and the door is closed by itself contrary to the intention of the user. Therefore, there is a problem that the convenience of the door opening and closing mechanism is not good.

本發明的目的在於提供一種能夠提升便利性的門開閉機構。An object of the present invention is to provide a door opening and closing mechanism capable of improving convenience.

為了達成上述目的，本發明的門開閉機構，具備具有開口面的本體部、與對上述開口面進行開閉的門，其特徵在於，具備第一自閉機構部、與第二自閉機構部，上述第一自閉機構部，係在從規定的第一自閉開始位置至已關閉上述門的第一自閉結束位置之間對上述門往關閉的方向進行施力；上述第二自閉機構部，係在從較上述第一自閉開始位置靠近門開放側的第二自閉開始位置至較上述第一自閉開始位置靠近門閉鎖側的第二自閉結束位置之間對上述門往關閉的方向進行施力。In order to achieve the above object, the door opening and closing mechanism of the present invention includes a main body portion having an opening surface and a door that opens and closes the opening surface, and includes a first self-closing mechanism portion and a second self-closing mechanism portion. The first self-closing mechanism unit biases the door in a direction from a predetermined first self-closing start position to a first self-closing end position in which the door is closed; the second self-closing mechanism a portion between the second self-closing start position closer to the door open side than the first self-closing start position to the second self-closing end position closer to the door lock side than the first self-closing start position Apply force in the direction of closing.

又，本發明在上述構成的門開閉機構中，其中，在打開上述門時解除由第二自閉機構部進行的關閉上述門的方向的施力。Further, in the door opening and closing mechanism according to the above aspect of the invention, the biasing force in the direction in which the door is closed by the second self-closing mechanism unit is released when the door is opened.

又，本發明在上述構成的門開閉機構中，其具備第一開放機構部，該第一開放機構部從上述第二自閉開始位置附近的第一開放開始位置在門開放側對所述門往打開的方向進行施力。Further, according to the present invention, in the door opening and closing mechanism of the above aspect, the first opening mechanism portion includes the first opening mechanism portion from the first opening start position near the second self-closing start position to the door on the door opening side. Apply force in the direction of opening.

又，本發明在上述構成的門開閉機構中，其中，上述第一開放開始位置配置在較上述第二自閉開始位置靠近門閉鎖側，以抵抗上述第一開放機構部的作用力的方式藉由上述第二自閉機構部將上述門關閉。Further, in the door opening and closing mechanism according to the above aspect of the invention, the first opening start position is disposed closer to the door closing side than the second self-closing start position, and is lent to resist the urging force of the first opening mechanism portion. The door is closed by the second autonomous closing mechanism.

又，本發明在上述構成的門開閉機構中，其中，具備設置在上述本體部及上述門的一方並相對水平傾斜的第一傾斜面及第二傾斜面、與設置在上述本體部及上述門的另一方並藉由上述門的自身重量而在上述第一傾斜面及上述第二傾斜面進行滑動的從動件，上述第一自閉機構部藉由上述第一傾斜面及上述從動件而形成，並且上述第一開放機構部藉由上述第二傾斜面及上述從動件而形成。Further, the door opening and closing mechanism according to the above aspect of the present invention includes a first inclined surface and a second inclined surface which are provided on one of the main body portion and the door and are horizontally inclined, and are provided on the main body portion and the door The other of the followers that slides on the first inclined surface and the second inclined surface by the weight of the door, the first self-closing mechanism portion is configured by the first inclined surface and the driven member The first opening mechanism portion is formed by the second inclined surface and the follower.

又，本發明在上述構成的門開閉機構中，其中，由較上述第二自閉結束位置靠近門閉鎖側的切換位置與上述第一自閉結束位置之間的上述第一自閉機構部產生的作用力，小於由上述切換位置與上述第二自閉結束位置之間的上述第一自閉機構部產生的作用力。Further, in the door opening and closing mechanism according to the above aspect of the present invention, the first self-closing mechanism portion between the switching position closer to the door closing side and the first self-closing end position than the second self-closing end position is generated. The force is smaller than the force generated by the first self-closing mechanism portion between the switching position and the second self-closing end position.

又，本發明在上述構成的門開閉機構中，其具備限制部，該限制部限制由較上述第二自閉結束位置靠近門閉鎖側的切換位置與上述第一自閉結束位置之間的上述第一自閉機構部產生的上述門的關閉的速度。Further, the door opening/closing mechanism according to the above aspect of the invention includes the restricting portion that restricts the above-described switching position between the second closing position and the first closing position The speed at which the door of the first self-closing mechanism is closed.

又，本發明在上述構成的門開閉機構中，其中，在關閉上述門時，上述限制部抵抗上述第一自閉機構部的作用力而支撐上述門，並以規定速度將上述門往關閉的方向進行引導。Further, in the door opening and closing mechanism according to the above aspect of the invention, the restricting portion supports the door against the urging force of the first self-closing mechanism portion when the door is closed, and closes the door at a predetermined speed. Guide the direction.

又，本發明在上述構成的門開閉機構中，其中，上述樞支軸被配置在上述門的兩端部而能夠從兩端擇一地開閉上述門，並且具備從上述第一自閉結束位置對上述門往打開的方向進行施力的一對第二開放機構部，藉由在打開上述門的一方時對上述門進行施力的上述第二開放機構部，形成從另一方關閉上述門時的上述限制部。Further, in the door opening and closing mechanism according to the above aspect of the invention, the pivot shaft is disposed at both end portions of the door, and the door can be opened and closed from both ends, and the first self-closing end position is provided. a pair of second opening mechanism portions for biasing the door in the opening direction, and the second opening mechanism portion for biasing the door when the door is opened is formed to close the door from the other side The above restrictions.

又，本發明在上述構成的門開閉機構中，其具備設置在上述本體部並藉由馬達驅動而進行旋轉的滑動件、與設置在上述門並在上述滑動件進行滑動的一對第一凸輪表面及一對第二凸輪表面； 從一方關閉上述門的上述第二自閉機構部係藉由上述滑動件及一方的上述第一凸輪表面而形成，並且打開上述門的一方的上述第二開放機構部係藉由上述滑動件及一方的上述第二凸輪表面而形成； 從另一方關閉上述門的上述第二自閉機構部係藉由上述滑動件及另一方的上述第一凸輪表面而形成，並且打開上述門的另一方的上述第二開放機構部係藉由上述滑動件及另一方的上述第二凸輪表面而形成； 　 關閉上述門的一方時，上述滑動件往規定方向進行旋轉並在一方的上述第一凸輪表面進行滑動，在上述第二自閉結束位置從上述第一凸輪表面離開，在上述切換位置往上述規定方向的相反方向進行旋轉並在形成上述限制部的另一方的上述第二凸輪表面進行滑動。Further, in the door opening and closing mechanism of the above aspect, the door opening and closing mechanism includes a slider that is provided in the main body portion and that is rotated by a motor, and a pair of first cams that are provided on the door and slide on the slider. a surface and a pair of second cam surfaces; the second self-closing mechanism portion that closes the door from one side is formed by the slider and one of the first cam surfaces, and opens the second opening of the door The mechanism portion is formed by the sliding member and the second cam surface; and the second self-closing mechanism portion that closes the door from the other side is formed by the sliding member and the other first cam surface And opening the second opening mechanism portion of the other of the doors by the sliding member and the other second cam surface; when the one of the doors is closed, the sliding member rotates in a predetermined direction and One of the first cam surfaces slides, and is separated from the first cam surface at the second self-closing end position, at the switching position Rotating in the opposite direction to the predetermined direction and sliding on the other second cam surface forming the restricting portion.

又，本發明在上述構成的門開閉機構中，其中，在上述第一自閉結束位置以手動打開上述門時，上述滑動件配置在不干擾上述第一凸輪表面及上述第二凸輪表面的退避位置。Further, in the door opening/closing mechanism according to the above aspect of the invention, the slider is disposed to retract without disturbing the first cam surface and the second cam surface when the door is manually opened at the first self-closing end position. position.

又，本發明的冰箱，其特徵在於，具備上述各構成的門開閉機構，且上述驅動部被設置在上述本體部的上面，上述樞支軸被鉛直地配置。Further, the refrigerator according to the present invention includes the door opening and closing mechanism of each of the above configurations, and the driving unit is provided on an upper surface of the main body portion, and the pivot shaft is vertically disposed.

根據本發明，具備在從第一自閉位置至第一自閉結束位置之間對門進行施力的第一自閉機構部、與從較第一自閉開始位置靠近門開放側的第二自閉開始位置至較第一自閉開始位置靠近門閉鎖側的第二自閉結束位置之間對門進行施力的第二自閉機構。因此，能夠在關閉門時依照第二自閉機構部、第一自閉機構部的順序對門進行施力而在廣範圍內使門自行關閉，能夠防止門未完全關閉的狀態。又，若在打開門時限制第二自閉機構部的作用力，則能夠防止門與使用者的意圖相反地關閉。因此，能夠使門開閉機構的便利性提升。According to the invention, the first self-closing mechanism portion that biases the door from the first self-closing position to the first self-closing end position and the second self-closing mechanism that is closer to the door from the first self-closing position are provided. The second self-closing mechanism that biases the door between the closing start position and the second self-closing end position closer to the door locking side than the first self-closing starting position. Therefore, when the door is closed, the door can be biased in accordance with the order of the second self-closing mechanism unit and the first self-closing mechanism unit, and the door can be closed by itself in a wide range, and the state in which the door is not completely closed can be prevented. Further, if the urging force of the second autonomous closing mechanism portion is restricted when the door is opened, it is possible to prevent the door from being closed contrary to the intention of the user. Therefore, the convenience of the door opening and closing mechanism can be improved.

＜第一實施方式＞ 　　在以下參照圖式對本發明之實施方式進行說明。圖1係表示第一實施方式的冰箱之正面圖。冰箱1具有由隔熱箱體構成的本體部2，在本體部2從上方依序形成由隔熱壁9（參照圖2）分隔開的冷藏室3、冷凍室5、蔬菜室7。<First embodiment> An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a front view showing the refrigerator of the first embodiment. The refrigerator 1 has a main body portion 2 composed of a heat insulating box body, and a refrigerator compartment 3, a freezing compartment 5, and a vegetable compartment 7 partitioned by a heat insulating wall 9 (see FIG. 2) are sequentially formed in the main body portion 2 from above.

冷藏室3的前面之開口面3a（參照圖2）是藉由門4而被開閉，上述門4被以鉛直的樞支軸4c樞支於本體部2。樞支軸4c藉由分別支撐門4的上下端之鉸鏈銷21（參照圖2）而形成。冷凍室5的前面的開口面藉由滑動式的門6而被開閉。蔬菜室7前面的開口面藉由滑動式的門8而被開閉。The front opening surface 3a (see FIG. 2) of the refrigerating compartment 3 is opened and closed by the door 4, and the door 4 is pivotally supported by the main body portion 2 by a vertical pivot shaft 4c. The pivot shaft 4c is formed by a hinge pin 21 (refer to FIG. 2) that supports the upper and lower ends of the door 4, respectively. The opening surface of the front surface of the freezing compartment 5 is opened and closed by the sliding door 6. The opening surface in front of the vegetable compartment 7 is opened and closed by the sliding door 8.

在各門4、6、8的面對本體部2的周邊部設置防止冷氣洩漏的襯墊（packing）（不圖示）。在襯墊設置用於吸附於本體部2的前面的磁鐵（不圖示）。A packing (not shown) for preventing leakage of cold air is provided in a peripheral portion of each of the doors 4, 6, and 8 facing the body portion 2. A magnet (not shown) for adsorbing to the front surface of the body portion 2 is provided on the gasket.

圖2係表示冷藏室3的下部的細節的側面剖面圖。冷藏室3的門4藉由形成樞支軸4c（參照圖1）的鉸鏈銷21支撐上下端。在冷藏室3與冷凍室5之間的隔熱壁9的前面安裝有保持鉸鏈銷21的角材11。2 is a side cross-sectional view showing details of a lower portion of the refrigerating compartment 3. The door 4 of the refrigerating compartment 3 supports the upper and lower ends by a hinge pin 21 that forms a pivot shaft 4c (refer to FIG. 1). An angle member 11 that holds the hinge pin 21 is attached to the front surface of the heat insulating wall 9 between the refrigerating compartment 3 and the freezing compartment 5.

圖3係表示角材11的正面圖。在圖2、圖3中，角材11係將金屬板彎曲成剖面L字型而形成，鉛直部11v藉由螺桿16安裝於隔熱壁9。在角材11的水平部11h的一端突出設置有鉸鏈銷21。鉸鏈銷21的座面形成具有多個傾斜面的環狀的凹凸部22。Fig. 3 is a front view showing the angle member 11. In FIGS. 2 and 3, the angle member 11 is formed by bending a metal plate into an L-shaped cross section, and the vertical portion 11v is attached to the heat insulating wall 9 by a screw 16. A hinge pin 21 is protruded from one end of the horizontal portion 11h of the angle member 11. The seat surface of the hinge pin 21 forms an annular uneven portion 22 having a plurality of inclined faces.

在門4的下面安裝有嵌合於鉸鏈銷21的軸承部14。在軸承部14的下面往下方突出設置有在凹凸部22滑動的從動件14d（參照圖5）。A bearing portion 14 fitted to the hinge pin 21 is attached to the lower surface of the door 4. A follower 14d that slides on the uneven portion 22 is protruded downward from the lower surface of the bearing portion 14 (see FIG. 5).

圖4係表示凹凸部22的俯視圖，圖5係表示凹凸部22及從動件14d的展開圖。凹凸部22點對稱地形成，具有圖4中順時針下降的一對傾斜面22a（第一傾斜面）、與順時針上昇的一對傾斜面22c（第二傾斜面）。在傾斜面22a的上端與傾斜面22c的上端之間設置有水平面22d，在傾斜面22a的下端與傾斜面22c的下端之間設置有水平面22e。4 is a plan view showing the uneven portion 22, and FIG. 5 is a developed view showing the uneven portion 22 and the follower 14d. The uneven portion 22 is formed in point symmetry, and has a pair of inclined surfaces 22a (first inclined surfaces) that are clockwise lowered in FIG. 4 and a pair of inclined surfaces 22c (second inclined surfaces) that rise clockwise. A horizontal surface 22d is provided between the upper end of the inclined surface 22a and the upper end of the inclined surface 22c, and a horizontal surface 22e is provided between the lower end of the inclined surface 22a and the lower end of the inclined surface 22c.

在本實施方式，傾斜面22a形成在以鉸鏈銷21為中心的角度為30°的範圍。水平面22d形成在以鉸鏈銷21為中心的角度為40°的範圍。傾斜面22c形成在以鉸鏈銷21為中心的角度為20°的範圍。In the present embodiment, the inclined surface 22a is formed in a range in which the angle around the hinge pin 21 is 30°. The horizontal surface 22d is formed in a range in which the angle centering on the hinge pin 21 is 40°. The inclined surface 22c is formed in a range in which the angle centering on the hinge pin 21 is 20°.

突出設置在軸承部14的下端面的從動件14d，具有分別與凹凸部22的傾斜面22a及傾斜面22c面接觸的傾斜面14a及傾斜面14c。門4藉由旋動使從動件14d的頂部在凹凸部22滑動而進行上下移動。The follower 14d that is protruded from the lower end surface of the bearing portion 14 has an inclined surface 14a and an inclined surface 14c that are in surface contact with the inclined surface 22a and the inclined surface 22c of the uneven portion 22, respectively. The door 4 is moved up and down by sliding the top of the follower 14d on the uneven portion 22 by the rotation.

當從動件14d配置在傾斜面22a上時，門4因自身重量而被往關閉的方向施力。因此，從動件14d及傾斜面22a構成對門4往關閉的方向進行施力的第一自閉機構部。第一自閉機構部係在從動件14d配置在傾斜面22a的上端的第一自閉開始位置P2與門4的閉止位置P0（第一自閉結束位置）之間的區間T1對門4進行施力。再者，圖5係表示從動件14d已配置在閉止位置P0的狀態。When the follower 14d is disposed on the inclined surface 22a, the door 4 is biased in the direction of closing due to its own weight. Therefore, the follower 14d and the inclined surface 22a constitute a first self-closing mechanism portion that biases the door 4 in the closing direction. The first self-closing mechanism unit performs the door 4 in the section T1 between the first self-closing start position P2 at the upper end of the inclined surface 22a and the closed position P0 (the first self-closing end position) of the door 4 in the follower 14d. Force. In addition, FIG. 5 shows a state in which the follower 14d is placed at the closed position P0.

當從動件14d配置在傾斜面22c上時，門4因自身重量而被往打開的方向施力。因此，從動件14d及傾斜面22c構成對門4往打開的方向進行施力的第一開放機構部。第一開放機構部係在從動件14d配置在傾斜面22c的上端的第一開放開始位置P3與配置在傾斜面22c的下端的第一開放結束位置P5之間的區間S1對門4進行施力。When the follower 14d is disposed on the inclined surface 22c, the door 4 is biased in the direction of opening due to its own weight. Therefore, the follower 14d and the inclined surface 22c constitute a first opening mechanism portion that biases the door 4 in the direction in which it opens. The first opening mechanism unit biases the door 4 in a section S1 between the first opening start position P3 where the follower 14d is disposed at the upper end of the inclined surface 22c and the first opening end position P5 disposed at the lower end of the inclined surface 22c. .

又，如後述，設置有藉由馬達52（參照圖6）的驅動而對門4往關閉的方向進行施力的第二自閉機構部、及對門4往打開的方向進行施力的第二開放機構部。第二自閉機構部在第二自閉開始位置P4與第二自閉結束位置P1之間的區間T2對門4進行施力。第二自閉結束位置P1配置在較第一自閉開始位置P2靠近門閉鎖側。第二自閉開始位置P4配置在第一開放開始位置P3的附近且較第一開放開始位置P3靠近門開放側。Further, as will be described later, the second self-closing mechanism portion that biases the door 4 in the direction in which the door 4 is closed by the driving of the motor 52 (see FIG. 6) and the second opening that biases the door 4 in the direction in which the door 4 is opened are provided. Department of the Department. The second self-closing mechanism unit biases the door 4 in a section T2 between the second self-closing start position P4 and the second self-closing end position P1. The second self-closing end position P1 is disposed closer to the door closing side than the first self-closing start position P2. The second autism start position P4 is disposed in the vicinity of the first open start position P3 and closer to the door open side than the first open start position P3.

第二開放機構部於閉止位置P0與第二開放結束部之間的區間S2對門4進行施力。在本實施方式使第二開放結束位置與第二自閉開始位置P4大致一致，在以下的說明中也有稱作「第二開放結束位置P4’」的情形。The second opening mechanism unit biases the door 4 in the section S2 between the closed position P0 and the second open end. In the present embodiment, the second open end position is substantially coincident with the second self-closing start position P4, and in the following description, there is also a case called "second open end position P4".

又，藉由第一自閉機構部、第二自閉機構部、第一開放機構部及第二開放機構部構成對門4進行開閉的門開閉機構。Further, the first self-closing mechanism unit, the second self-closing mechanism unit, the first opening mechanism unit, and the second opening mechanism unit constitute a door opening and closing mechanism that opens and closes the door 4.

再者，在支撐門4的上端的鉸鏈銷21的座面及門4的上端面形成有避免因門4的上下移動造成的干擾的槽部（不圖示）。藉由槽部能夠防止因門4的上下移動造成的本體部2與門4之間隙的產生。Further, a groove portion (not shown) for avoiding interference due to the vertical movement of the door 4 is formed on the seating surface of the hinge pin 21 at the upper end of the support door 4 and the upper end surface of the door 4. The generation of the gap between the body portion 2 and the door 4 due to the vertical movement of the door 4 can be prevented by the groove portion.

又，也可以藉由鉛直面形成互相滑動的傾斜面14a與傾斜面22a的一方。相同地，也可以藉由鉛直面形成互相滑動的傾斜面14c與傾斜面22c的一方。如本實施方式，若使傾斜面14a及傾斜面22a形成為相同傾斜角度且使傾斜面14c及傾斜面22c形成為相同傾斜角度，則能夠降低滑動磨損因此較佳。Further, one of the inclined surface 14a and the inclined surface 22a which slide each other may be formed by the vertical surface. Similarly, one of the inclined faces 14c and the inclined faces 22c that slide each other may be formed by the vertical faces. According to the present embodiment, when the inclined surface 14a and the inclined surface 22a are formed at the same inclination angle and the inclined surface 14c and the inclined surface 22c are formed at the same inclination angle, the sliding wear can be reduced, which is preferable.

圖6係表示冰箱1的俯視圖。在本體部2的上面安裝有在門4的上方延伸的支撐構件51，且將門開閉裝置50設置在支撐構件51上。門開閉裝置50具備滑動件59、對滑動件59進行驅動的驅動部58、及對滑動件59進行滑動引導的導引部60。又，在門開閉裝置50設置偵測門4的打開量的偵測感測器（不圖示）。Fig. 6 is a plan view showing the refrigerator 1. A support member 51 extending above the door 4 is attached to the upper surface of the body portion 2, and the door opening and closing device 50 is disposed on the support member 51. The door opening and closing device 50 includes a slider 59, a driving portion 58 that drives the slider 59, and a guiding portion 60 that slides the slider 59. Further, a detection sensor (not shown) that detects the amount of opening of the door 4 is provided in the door opening and closing device 50.

驅動部58具有馬達52、蝸桿（worm）53、蝸輪（worm wheel）54、減速齒輪55、減速齒輪56、齒條57。蝸桿53安裝於馬達52的軸（shaft），與蝸輪54進行齒合。減速齒輪55與蝸輪54同心地安裝。減速齒輪56與減速齒輪55及齒條57進行齒合。齒條57在左右方向上可滑動地安裝於支撐構件51上。The drive unit 58 has a motor 52, a worm 53, a worm wheel 54, a reduction gear 55, a reduction gear 56, and a rack 57. The worm 53 is attached to a shaft of the motor 52 and is meshed with the worm wheel 54. The reduction gear 55 is mounted concentrically with the worm wheel 54. The reduction gear 56 meshes with the reduction gear 55 and the rack 57. The rack 57 is slidably attached to the support member 51 in the left-right direction.

導引部60被設置在門4的上面，具有往上方突出的肋61及肋62。肋61具有以隨著從樞支軸4c離開而接近本體部2的方式傾斜的凸輪表面61a（第二凸輪表面）。肋62具有配置在肋61與樞支軸4c之間，且以隨著從樞支軸4c離開而接近本體部2的方式傾斜的凸輪表面62a（第一凸輪表面）。The guide portion 60 is provided on the upper surface of the door 4, and has ribs 61 and ribs 62 that protrude upward. The rib 61 has a cam surface 61a (second cam surface) that is inclined in such a manner as to approach the body portion 2 as it is separated from the pivot shaft 4c. The rib 62 has a cam surface 62a (first cam surface) that is disposed between the rib 61 and the pivot shaft 4c and that is inclined to approach the body portion 2 as it is separated from the pivot shaft 4c.

滑動件59突出設置在齒條57的下面，且配置在凸輪表面61a與凸輪表面62a之間。由此，當馬達52被驅動時透過各齒輪而使滑動件59在左右方向移動，且在凸輪表面61a與凸輪表面62a滑動。The slider 59 is protrudedly disposed under the rack 57 and disposed between the cam surface 61a and the cam surface 62a. Thereby, when the motor 52 is driven, the slider 59 is moved in the left-right direction through the respective gears, and the cam surface 61a slides with the cam surface 62a.

在以下的說明中，有將開口面3a的法線及與樞支軸4c垂直的方向（作動方向）稱為X方向，將開口面3a的法線方向稱為Y方向，將樞支軸4c的軸方向稱為Z方向的情形。在本實施方式中，X方向為左右方向，Y方向為前後方向，Z方向為上下方向。In the following description, the normal line of the opening surface 3a and the direction perpendicular to the pivot axis 4c (actuation direction) are referred to as the X direction, and the normal direction of the opening surface 3a is referred to as the Y direction, and the pivot axis 4c is referred to. The direction of the axis is called the Z direction. In the present embodiment, the X direction is the left-right direction, the Y direction is the front-rear direction, and the Z direction is the vertical direction.

在門4的閉止狀態下，滑動件59配置在肋61與肋62之間的退避位置。因此，在已使馬達52停止的驅動待機時，退避位置的滑動件59不干擾導引部60，能夠以手動打開門4。In the closed state of the door 4, the slider 59 is disposed at a retracted position between the rib 61 and the rib 62. Therefore, when the drive that has stopped the motor 52 is in standby, the slider 59 at the retracted position does not interfere with the guide portion 60, and the door 4 can be manually opened.

當在門4的閉止狀態下操作規定的操作按鈕時藉由驅動部58對門4進行開門驅動。如圖7所示，藉由開門驅動而減速齒輪56沿圖中的順時針CW旋轉，且滑動件59往X方向的從樞支軸4c離開的方向（圖中左方）移動且與肋61的凸輪表面61a抵接。進而，當滑動件59往圖中的左方移動時，藉由滑動件59與凸輪表面61a的滑動而使門4被往打開的方向施力。When the predetermined operation button is operated in the closed state of the door 4, the door 4 is driven to open by the drive unit 58. As shown in FIG. 7, the reduction gear 56 is rotated by the clockwise CW in the drawing by the door opening drive, and the slider 59 is moved in the direction of the X-direction from the pivot shaft 4c (left in the drawing) and with the rib 61. The cam surface 61a abuts. Further, when the slider 59 is moved to the left in the drawing, the door 4 is biased in the direction in which it is opened by the sliding of the slider 59 and the cam surface 61a.

由此，如圖8所示，從動件14d抵抗因門4的自身重量造成的作用力而於傾斜面22a上昇，且門4一邊上昇一邊被打開。又，如圖9所示，從動件14d在水平面22d上滑動而門4水平地被打開。Thereby, as shown in FIG. 8, the follower 14d rises on the inclined surface 22a against the urging force by the weight of the door 4, and the door 4 is opened while raising. Further, as shown in Fig. 9, the follower 14d slides on the horizontal surface 22d and the door 4 is horizontally opened.

如圖10所示，當門4被打開規定量時滑動件59到達凸輪表面61a的終端（後端），結束由驅動部58進行的開門驅動。此時，從動件14d配置在較第一開放開始位置P3靠近門開放側的第二開放結束位置P4’（第二自閉開始位置P4）。因此，包含滑動件59的驅動部58及凸輪表面61a構成在區間S2對門4往打開的方向進行施力的第二開放機構部。As shown in FIG. 10, when the door 4 is opened by a predetermined amount, the slider 59 reaches the terminal (rear end) of the cam surface 61a, and the door opening drive by the driving portion 58 is ended. At this time, the follower 14d is disposed at the second opening end position P4' (second autism starting position P4) closer to the door opening side than the first opening start position P3. Therefore, the driving portion 58 including the slider 59 and the cam surface 61a constitute a second opening mechanism portion that biases the door 4 in the direction in which the door 4 is opened.

當結束由驅動部58進行的開門驅動時，如圖11所示，從動件14d於傾斜面22c進行滑動，藉由對門4因自身重量進行施力的第一開放機構部而將門4打開。門4到達第一開放結束位置P5而從動件14d配置在水平面22e上。其後，門4被以手動打開。由此，可以減輕打開門4時的負擔。When the door opening drive by the drive unit 58 is completed, as shown in FIG. 11, the follower 14d slides on the inclined surface 22c, and the door 4 is opened by the first opening mechanism portion that biases the door 4 by its own weight. The door 4 reaches the first open end position P5 and the follower 14d is disposed on the horizontal plane 22e. Thereafter, the door 4 is manually opened. Thereby, the burden when the door 4 is opened can be reduced.

又，當藉由偵測感測器偵測由驅動部58進行的開門驅動已結束時，如圖12所示逆轉驅動馬達52而減速齒輪56往圖中逆時針CCW進行旋轉。由此，滑動件59往X方向的接近樞支軸4c的方向（圖中右方）移動而配置於退避位置，馬達52被停止。Further, when the door opening drive by the drive unit 58 is detected by the detecting sensor, the drive motor 52 is reversed as shown in Fig. 12, and the reduction gear 56 is rotated counterclockwise CCW in the figure. Thereby, the slider 59 moves in the direction (the right side in the drawing) in the X direction close to the pivot shaft 4c, and is disposed at the retracted position, and the motor 52 is stopped.

接著，當從門4的開啟狀態以手動關閉門4時，從動件14d於傾斜面22c滑動而門4上昇（參照圖9）。以偵測感測器偵測門4已被關閉至第二自閉開始位置P4（參照圖9）時，藉由驅動部58對門4進行閉門驅動。Next, when the door 4 is manually closed from the open state of the door 4, the follower 14d slides on the inclined surface 22c and the door 4 ascends (refer to FIG. 9). When the detecting sensor detects that the door 4 has been closed to the second self-closing start position P4 (refer to FIG. 9), the door 4 is driven by the driving unit 58 to close the door.

由此，如圖13所示，減速齒輪56往圖中逆時針CCW旋轉，且退避位置的滑動件59往X方向的接近樞支軸4c的方向（圖中右方）移動，而與肋62的凸輪表面62a抵接。進而，當滑動件59往圖中右方移動時，藉由滑動件59與凸輪表面62a之間的滑動而門4被關閉。Thereby, as shown in Fig. 13, the reduction gear 56 rotates counterclockwise CCW in the figure, and the slider 59 of the retracted position moves in the direction of the X direction near the pivot shaft 4c (right side in the drawing), and the rib 62 The cam surface 62a abuts. Further, when the slider 59 is moved to the right in the drawing, the door 4 is closed by the sliding between the slider 59 and the cam surface 62a.

如圖14所示，當門4被關閉規定量時，滑動件59到達凸輪表面62a的終端（前端），離開凸輪表面62a而結束由驅動部58進行的閉門驅動。此時，從動件14d配置在較第一自閉開始位置P2靠近門閉鎖側的第二自閉結束位置P1（參照圖5）。因此，包含滑動件59的驅動部58及凸輪表面62a構成在區間T2對門4往關閉的方向進行施力的第二自閉機構部。As shown in Fig. 14, when the door 4 is closed by a predetermined amount, the slider 59 reaches the terminal end (front end) of the cam surface 62a, and leaves the cam surface 62a to end the door closing drive by the driving portion 58. At this time, the follower 14d is disposed at the second self-closing end position P1 (see FIG. 5) closer to the door closing side than the first self-closing start position P2. Therefore, the driving portion 58 including the slider 59 and the cam surface 62a constitute a second self-closing mechanism portion that biases the door 4 in the direction in which the door 4 is closed.

再者，雖然第二自閉開始位置P4與第二開放結束位置P4’大致一致，但也可以是不同位置。此時，也可以是在第二開放結束位置P4’從動件14d配置在傾斜面22c上，在第二自閉開始位置P4從動件14d配置在水平面22d上。Further, although the second autism start position P4 and the second opening end position P4' substantially coincide with each other, they may be different positions. At this time, the follower 14d may be disposed on the inclined surface 22c at the second open end position P4', and the follower 14d may be disposed on the horizontal surface 22d at the second self-closing start position P4.

在已結束由驅動部58進行的閉門驅動時，由於從動件14d與傾斜面22a滑動著，藉由對門4因自身重量進行施力的第一自閉機構部而門4被關閉。由此，能夠減輕門4的關閉時的負擔，防止門未完全關閉的狀態。When the door closing drive by the drive unit 58 is completed, the follower 14d slides with the inclined surface 22a, and the door 4 is closed by the first self-closing mechanism portion that biases the door 4 by its own weight. Thereby, it is possible to reduce the load at the time of closing the door 4 and prevent the door from being completely closed.

又，藉由偵測感測器偵測由驅動部58進行的閉門驅動已結束時，馬達52進行逆轉。然後，滑動件59往X方向的從樞支軸4c離開的方向（圖中左方）移動而如前述的圖6所示般配置在退避位置，馬達52被停止。Further, when the detection sensor detects that the door closing drive by the drive unit 58 has ended, the motor 52 reverses. Then, the slider 59 is moved in the direction away from the pivot shaft 4c in the X direction (the left side in the drawing), and is disposed at the retracted position as shown in FIG. 6 described above, and the motor 52 is stopped.

再者，在門4藉由手動而被關閉至閉止位置的情況下，由於滑動件59配置於退避位置，因此能夠防止滑動件59與導引部60之間的干擾而關閉門4。Further, when the door 4 is manually closed to the closed position, since the slider 59 is disposed at the retracted position, the door 4 can be closed by preventing interference between the slider 59 and the guide portion 60.

此時，也可以由偵測感測器偵測門4已被關閉至第二自閉開始位置P4後，經過規定的延遲時間後藉由驅動部58而對門4進行閉門驅動。又，也可以藉由偵測感測器的過渡資訊之演算而判定門4被關閉至規定的位置，基於該判定結果對門4進行閉門驅動。又，也可以在門4通過第二自閉開始位置P4時的閉門速度為規定速度以下的情況下，藉由驅動部58對門4進行閉門驅動。據此，儘管在門4以手動被關閉至閉止位置的情況下，也能夠防止馬達52被驅動。At this time, after the detection sensor detects that the door 4 has been closed to the second self-closing start position P4, the door 4 is driven by the drive unit 58 after a predetermined delay time. Further, it is also possible to determine that the door 4 is closed to a predetermined position by detecting the calculation of the transition information of the sensor, and the door 4 is driven to be closed by the determination result. Moreover, when the door closing speed when the door 4 passes the second self-closing start position P4 is equal to or lower than the predetermined speed, the door 4 may be closed by the drive unit 58. According to this, although the door 4 is manually closed to the closed position, the motor 52 can be prevented from being driven.

根據本實施方式，在從第一自閉開始位置P2至閉止位置P0（第一自閉結束位置）之間的區間T1設置有對門4進行施力的第一自閉機構部。又，從較第一自閉開始位置P2靠近門開放側的第二自閉開始位置P4至較第一自閉開始位置P2靠近門閉鎖側的第二自閉結束位置P1之間的區間T2，設置有對門4進行施力的第二自閉機構部。According to the present embodiment, the first self-closing mechanism portion that biases the door 4 is provided in the section T1 between the first self-closing start position P2 and the closed position P0 (the first self-closing end position). Further, from the second self-closing start position P4 closer to the door opening side than the first self-closing start position P2 to the interval T2 between the second self-closing end position P1 closer to the door closing side than the first self-closing start position P2, A second self-closing mechanism portion that biases the door 4 is provided.

因此，在關閉門4時，第二自閉機構部、第一自閉機構部依序對門4進行施力，且可以在廣範圍內使門4自行關閉。因此，能夠擴大在關閉門4時自行關閉之範圍，減輕關閉門4的負擔，能夠防止門未完全關閉的狀態。因此，能夠提升門開閉機構及冰箱1的便利性。Therefore, when the door 4 is closed, the second self-closing mechanism portion and the first self-closing mechanism portion sequentially apply the force to the door 4, and the door 4 can be closed by itself in a wide range. Therefore, it is possible to expand the range of self-closing when the door 4 is closed, to reduce the burden of closing the door 4, and to prevent the door from being completely closed. Therefore, the convenience of the door opening and closing mechanism and the refrigerator 1 can be improved.

又，由於在打開門4時滑動件59未在凸輪表面61a滑動，因此由第二自閉機構部進行的關閉門4的方向的施力被解除。由此，打開門4時可以容易地縮短自行關閉的範圍，可以防止已打開的門4與使用者的意圖相反地被關閉。Further, since the slider 59 does not slide on the cam surface 61a when the door 4 is opened, the biasing force in the direction of closing the door 4 by the second self-closing mechanism portion is released. Thereby, the range of self-closing can be easily shortened when the door 4 is opened, and the opened door 4 can be prevented from being closed contrary to the intention of the user.

又，設置從第二自閉開始位置P4附近的第一開放開始位置P3起在門開放側的區間S1對門4往打開的方向施力的第一開放機構部。由此，即使在關閉門4的方向施加微弱的力，也能夠將門4保持在打開狀態，並且在使用者欲關閉門4的情況下能夠藉由第二自閉機構部將門4確實地閉門。Moreover, the first opening mechanism portion that biases the door 4 in the direction in which the door 4 is opened in the section S1 on the door opening side from the first opening start position P3 in the vicinity of the second self-closing start position P4 is provided. Thereby, even if a weak force is applied in the direction in which the door 4 is closed, the door 4 can be kept in the open state, and when the user wants to close the door 4, the door 4 can be surely closed by the second self-closing mechanism portion.

又，第一開放開始位置P3配置在較第二自閉開始位置P4靠近門閉鎖側，對抗第一開放機構部的作用力而藉由第二自閉機構部將門4關閉。因此，即便使用者欲關閉門4的力量弱而無法超過第一開放開始位置P3，由於第二自閉機構部對門4往閉門方向進行施力，因此也能夠防止因第一開放機構部的作用力造成門4的彈回。因此，可以提升門開閉機構及冰箱1的便利性。Further, the first opening start position P3 is disposed closer to the door closing side than the second self-closing start position P4, and the door 4 is closed by the second closing mechanism portion against the urging force of the first opening mechanism portion. Therefore, even if the user wants to close the door 4 and the force cannot be exceeded and the first opening start position P3 cannot be exceeded, since the second self-closing mechanism unit applies the force to the door closing direction in the door closing direction, the action of the first opening mechanism portion can be prevented. The force causes the door 4 to bounce back. Therefore, the convenience of the door opening and closing mechanism and the refrigerator 1 can be improved.

又，藉由傾斜面22a、22c（第一、第二傾斜面）及從動件14d，能夠容易地實現藉由門4的自身重量而對門4進行施力的第一自閉機構部及第一開放機構部。又，藉由凸輪表面61a、62a及滑動件59，可以容易實現藉由馬達驅動而對門4進行施力的第二自閉機構部及第二開放機構部。Further, the inclined surfaces 22a and 22c (first and second inclined surfaces) and the follower 14d can easily realize the first self-closing mechanism unit that urges the door 4 by the weight of the door 4 and the first An open agency department. Further, the second self-closing mechanism portion and the second opening mechanism portion that bias the door 4 by the motor drive can be easily realized by the cam surfaces 61a and 62a and the slider 59.

在本實施方式中，也可以在肋62與樞支軸4c之間配置肋61，以隨著使凸輪表面61a及凸輪表面62a接近樞支軸4c而接近本體部2的方式傾斜。由此，滑動件59往X方向的接近樞支軸4c的方向移動而門4被打開，往從樞支軸4c離開的方向移動而門4被關閉。In the present embodiment, the rib 61 may be disposed between the rib 62 and the pivot shaft 4c so as to be inclined so as to approach the main body portion 2 as the cam surface 61a and the cam surface 62a approach the pivot shaft 4c. Thereby, the slider 59 moves in the direction of the X direction close to the pivot shaft 4c, and the door 4 is opened, moving in the direction away from the pivot shaft 4c, and the door 4 is closed.

又，也可以在門4的上面設置滑動件59，且在齒條57上設置凸輪表面61a、62a。Further, a slider 59 may be provided on the upper surface of the door 4, and cam surfaces 61a and 62a may be provided on the rack 57.

＜第二實施方式＞ 　　接著，圖15係表示第二實施方式的冰箱1之凹凸部22及從動件14d之展開圖。為了便於說明，對與前述圖1～圖14所示的第一實施方式相同的部分標記相同的符號。本實施方式構成第一自閉機構的凹凸部22的傾斜面22a具有多個傾斜角度。其他的部分與第一實施方式相同。<Second Embodiment> Next, Fig. 15 is a developed view showing the uneven portion 22 and the follower 14d of the refrigerator 1 of the second embodiment. For convenience of explanation, the same portions as those in the first embodiment shown in FIGS. 1 to 14 are denoted by the same reference numerals. In the present embodiment, the inclined surface 22a of the uneven portion 22 constituting the first self-closing mechanism has a plurality of inclination angles. The other parts are the same as the first embodiment.

傾斜面22a具有傾斜面22b，上述傾斜面22b相對於水平的傾斜角度在閉止位置P0與第二自閉結束位置P1之間的切換位置Ps的門閉鎖側上平緩地被切換。因此，第一自閉機構的因門4的自身重量產生的作用力，相較於切換位置Ps與第二自閉結束位置P1之間，切換位置Ps與閉止位置P0之間更小。The inclined surface 22a has an inclined surface 22b, and the inclined surface 22b is gently switched with respect to the horizontal inclination angle on the door locking side of the switching position Ps between the closed position P0 and the second self-closing end position P1. Therefore, the force of the first self-closing mechanism due to the weight of the door 4 is smaller between the switching position Ps and the second self-closing end position P1 than between the switching position Ps and the closing position P0.

門4係從動件14d在傾斜面22a上滑動而進行自閉的速度加速，藉由傾斜面22b而加速度變小，因而限制自閉的速度。由此，藉由第一自閉機構部緩和關閉門4時的衝擊。因此，能夠降低因衝擊造成貯藏物飛散及衝擊音。又，能夠在本體部2的前面配置的手指以低速接觸被關閉的門4的內表面時使手指退避，能防止夾到手指。The door 4-based follower 14d slides on the inclined surface 22a to accelerate the self-closing speed, and the acceleration is reduced by the inclined surface 22b, thereby limiting the speed of the self-closing. Thereby, the impact when the door 4 is closed is alleviated by the first self-closing mechanism portion. Therefore, it is possible to reduce the scattering of the storage material and the impact sound due to the impact. Further, when the finger disposed on the front surface of the main body portion 2 contacts the inner surface of the closed door 4 at a low speed, the finger can be retracted, and the finger can be prevented from being caught.

根據本實施方式，較第二自閉結束位置P1靠近門閉鎖側的切換位置Ps與閉止位置P0（第一自閉結束位置）之間的第一自閉機構部產生的作用力，小於切換位置Ps與第二自閉結束位置P1之間的上述第一自閉機構部產生的作用力。由此，能夠降低因關閉門4時的衝擊造成貯藏物的飛散及衝擊音，且防止夾到手指。According to the present embodiment, the force generated by the first autonomous closing mechanism portion between the switching position Ps closer to the door closing side and the closing position P0 (the first self-closing end position) than the second self-closing end position P1 is smaller than the switching position. The force generated by the first self-closing mechanism portion between Ps and the second self-closing end position P1. Thereby, it is possible to reduce the scattering of the stored object and the impact sound due to the impact when the door 4 is closed, and to prevent the finger from being caught.

＜第三實施方式＞ 　　接著，圖16係表示第三實施方式的冰箱1之俯視圖。為了便於說明，對與前述圖1～圖14所示的第一實施方式相同的部分標記相同的符號。本實施方式的滑動件59旋轉移動，且導引部60之構造不同。其他的部分與第一實施方式相同。<Third Embodiment> Next, Fig. 16 is a plan view showing a refrigerator 1 according to a third embodiment. For convenience of explanation, the same portions as those in the first embodiment shown in FIGS. 1 to 14 are denoted by the same reference numerals. The slider 59 of the present embodiment is rotationally moved, and the configuration of the guide portion 60 is different. The other parts are the same as the first embodiment.

門開閉裝置50的驅動部58具有與第一實施方式相同的馬達52、蝸桿53、蝸輪54、減速齒輪55、及減速齒輪56。在減速齒輪56的下面設置滑動件59。由此，滑動件59藉由馬達52的驅動而進行旋轉。The drive unit 58 of the door opening and closing device 50 has the same motor 52, worm 53, worm gear 54, reduction gear 55, and reduction gear 56 as those of the first embodiment. A slider 59 is provided below the reduction gear 56. Thereby, the slider 59 is rotated by the driving of the motor 52.

導引部60設置在門4的上面，具有向上方突出的肋63、肋73及肋74。肋63具有凸輪表面63a（第二凸輪表面）、肋73具有凸輪表面73a，上述凸輪表面73a相對於與減速齒輪56的Y方向平行的中心線CL而與凸輪表面63a對稱。在圖16所示的門4的閉止狀態，凸輪表面63a以隨著接近本體部2而一邊從樞支軸4c離開，一邊進入至較滑動件59的軌道圓更內側的方式傾斜。凸輪表面73a以隨著接近本體部2而一邊接近樞支軸4c，一邊進入至較滑動件59的軌道圓更內側的方式傾斜。The guide portion 60 is provided on the upper surface of the door 4, and has ribs 63, ribs 73, and ribs 74 that protrude upward. The rib 63 has a cam surface 63a (second cam surface), and the rib 73 has a cam surface 73a which is symmetrical with respect to the cam surface 63a with respect to a center line CL parallel to the Y direction of the reduction gear 56. In the closed state of the door 4 shown in FIG. 16, the cam surface 63a is inclined so as to be separated from the pivot shaft 4c as it approaches the main body portion 2, and enters to the inner side of the track circle of the slider 59. The cam surface 73a is inclined so as to approach the pivot shaft 4c as it approaches the main body portion 2, and enters to the inner side of the track circle of the slider 59.

又，肋74具有以隨著接近本體部2而從樞支軸4c離開的方式傾斜的凸輪表面74a（第一凸輪表面）。即，凸輪表面74a與凸輪表面73a的相對於Y方向的傾斜成為相反方向。又，凸輪表面74a與凸輪表面73a相對於與減速齒輪56的Y方向平行的中心線CL一起配置在單側（本實施方式中為樞支軸4c側），凸輪表面74a配置在較凸輪表面73a接近本體部2之側。Further, the rib 74 has a cam surface 74a (first cam surface) that is inclined so as to be separated from the pivot shaft 4c as it approaches the body portion 2. That is, the inclination of the cam surface 74a and the cam surface 73a with respect to the Y direction is opposite. Further, the cam surface 74a and the cam surface 73a are disposed on one side (the side of the pivot shaft 4c in the present embodiment) with respect to the center line CL parallel to the Y direction of the reduction gear 56, and the cam surface 74a is disposed on the cam surface 73a. Approaching the side of the body portion 2.

在門4為閉止狀態的驅動待機時，滑動件59配置在即使以手動開閉門4也不會干擾導引部60的退避位置。即，在退避位置滑動件59配置在肋63與肋73之間。又，滑動件59在伴隨以樞支軸4c為中心的門4的開閉之凸輪表面73a、74a的旋動的軌跡的外周側，配置於凸輪表面63a的旋動的軌跡的內周側。When the door 4 is in the standby state of the drive standby state, the slider 59 is disposed so as not to interfere with the retracted position of the guide portion 60 even when the door 4 is manually opened and closed. That is, the retracted position slider 59 is disposed between the rib 63 and the rib 73. Moreover, the slider 59 is disposed on the outer peripheral side of the trajectory of the rotation of the cam surface 63a of the cam surface 63a on the outer peripheral side of the trajectory of the cam surfaces 73a and 74a which are opened and closed with the door 4 around the pivot shaft 4c.

當在門4的閉止狀態操作規定的操作按鈕時，藉由驅動部58對門4進行開門驅動。如圖17所示，藉由開門驅動而減速齒輪56在圖中順時針CW旋轉，且滑動件59隨著Y方向的移動而往X方向的從樞支軸4c離開的方向（圖中左方）移動。由此，滑動件59在肋63的凸輪表面63a滑動。When the predetermined operation button is operated in the closed state of the door 4, the door 4 is driven to open by the drive unit 58. As shown in Fig. 17, the reduction gear 56 is rotated clockwise CW in the figure by the door opening drive, and the slider 59 is moved in the Y direction from the pivot shaft 4c in the Y direction (left in the drawing) )mobile. Thereby, the slider 59 slides on the cam surface 63a of the rib 63.

當藉由滑動件59與凸輪表面63a的滑動而門4往開放方向進行移動時，如前述的圖8所示，從動件14d抵抗因門4的自身重量造成的作用力而於傾斜面22a上昇，且門4一邊上昇一邊被打開。又，如前述的圖9所示，從動件14d在水平面22d滑動而門4水平地被打開。When the door 4 is moved in the opening direction by the sliding of the slider 59 and the cam surface 63a, as shown in FIG. 8 described above, the follower 14d resists the force due to the weight of the door 4 on the inclined surface 22a. It rises and the door 4 is opened while being raised. Further, as shown in Fig. 9 described above, the follower 14d slides on the horizontal plane 22d and the door 4 is horizontally opened.

當門4被打開規定量時，滑動件59到達凸輪表面63a的終端（後端），結束開門驅動。此時，從動件14d配置在較第一開放開始位置P3靠近門開放側的第二開放結束位置P4’（第二自閉開始位置P4）（參照圖5）。因此，包含滑動件59的驅動部58及凸輪表面63a構成在區間S2對門4往打開的方向施力的第二開放機構部。When the door 4 is opened by a prescribed amount, the slider 59 reaches the terminal (rear end) of the cam surface 63a, and the door opening drive is ended. At this time, the follower 14d is disposed at the second opening end position P4' (second self-closing start position P4) closer to the door opening side than the first opening start position P3 (see Fig. 5). Therefore, the driving portion 58 including the slider 59 and the cam surface 63a constitute a second opening mechanism portion that biases the door 4 in the direction in which the door 4 is opened.

當結束由驅動部58進行的開門驅動時，如前述的圖11所示，從動件14d於傾斜面22c進行滑動，藉由對門4因自身重量進行施力的第一開放機構部而將門4打開。由此，如圖18所示，滑動件59配置在從凸輪表面63a離開的位置。其後，當門4到達第一開放結束位置P5而從動件14d配置在水平面22e上時，門4成為已充分打開的狀態，能夠以手動容易地打開門4。當結束由驅動部58進行的開門驅動時，將馬達52進行逆轉驅動，如前述的圖16所示地滑動件59被配置在退避位置，馬達52被停止。When the door opening drive by the driving unit 58 is completed, as shown in FIG. 11 described above, the follower 14d slides on the inclined surface 22c, and the door 4 is moved by the first opening mechanism portion that biases the door 4 by its own weight. turn on. Thereby, as shown in FIG. 18, the slider 59 is disposed at a position apart from the cam surface 63a. Thereafter, when the door 4 reaches the first opening end position P5 and the follower 14d is disposed on the horizontal surface 22e, the door 4 is fully opened, and the door 4 can be easily opened manually. When the door opening drive by the drive unit 58 is completed, the motor 52 is reversely driven, and the slider 59 is disposed at the retracted position as shown in FIG. 16 described above, and the motor 52 is stopped.

接著，當從門4的開啟狀態以手動關閉門4時，從動件14d於傾斜面22c滑動而門4上昇。當以偵測感測器偵測門4已被關閉至第二自閉開始位置P4（參照圖5）時，藉由驅動部58對門4進行閉門驅動。Next, when the door 4 is manually closed from the open state of the door 4, the follower 14d slides on the inclined surface 22c and the door 4 ascends. When the detecting sensor detects that the door 4 has been closed to the second self-closing start position P4 (refer to FIG. 5), the door 4 is driven by the driving unit 58 to close the door.

如圖19所示，藉由閉門驅動而減速齒輪56往圖中逆時針CCW旋轉，退避位置的滑動件59往X方向的接近樞支軸4c的方向（圖中右方）進行移動。由此，滑動件59在肋74的凸輪表面74a滑動而門4被關閉。As shown in Fig. 19, the reduction gear 56 is rotated counterclockwise CCW in the figure by the door closing drive, and the slider 59 at the retracted position moves in the direction (the right side in the drawing) of the X direction close to the pivot shaft 4c. Thereby, the slider 59 slides on the cam surface 74a of the rib 74 and the door 4 is closed.

如圖20所示，當門4被關閉規定量時，滑動件59到達凸輪表面74a的終端（前端）。此時，從動件14d配置在傾斜面22a上，門4配置在較第一自閉開始位置P2靠近門閉鎖側的第二自閉結束位置P1（參照圖5）。因此，包含滑動件59的驅動部58及凸輪表面74a構成在區間T2對門4往關閉的方向進行施力的第二自閉機構部。As shown in Fig. 20, when the door 4 is closed by a prescribed amount, the slider 59 reaches the terminal (front end) of the cam surface 74a. At this time, the follower 14d is disposed on the inclined surface 22a, and the door 4 is disposed at the second self-closing end position P1 (see FIG. 5) closer to the door closing side than the first self-closing start position P2. Therefore, the driving portion 58 including the slider 59 and the cam surface 74a constitute a second self-closing mechanism portion that biases the door 4 in the direction in which the door 4 is closed.

當門4被關閉至第二自閉結束位置P1時，藉由第一自閉機構部而被往關閉的方向施力，滑動件59從凸輪表面74a離開。然後，如圖21所示，門4被配置在滑動件59與凸輪表面73a抵接的切換位置Ps，且滑動件59的滑動面從凸輪表面74a被切換成凸輪表面73a。雖然切換位置Ps未圖示，但是與第二實施方式相同地配置在閉止位置P0與第二自閉結束位置P1（參照圖15）之間。When the door 4 is closed to the second self-closing end position P1, the first self-closing mechanism portion is biased in the closing direction, and the slider 59 is separated from the cam surface 74a. Then, as shown in FIG. 21, the door 4 is disposed at the switching position Ps at which the slider 59 abuts against the cam surface 73a, and the sliding surface of the slider 59 is switched from the cam surface 74a to the cam surface 73a. The switching position Ps is not shown, but is disposed between the closed position P0 and the second self-closing end position P1 (see FIG. 15) as in the second embodiment.

此時，因門4的自身重量而滑動件59被按壓在凸輪表面73a，且抵抗第一自閉機構部的作用力而支撐門4。然後，藉由滑動件59進行逆轉而往圖中順時針CW旋轉，使從動件14d於傾斜面22a（參照圖5）上下降而門4被引導往關閉的方向。由此，如圖22所示，門4被關閉。其後，滑動件59配置在如前述的圖16所示的退避位置。At this time, the slider 59 is pressed against the cam surface 73a due to the weight of the door 4, and supports the door 4 against the urging force of the first self-closing mechanism portion. Then, by the reverse rotation of the slider 59, the clockwise CW is rotated in the drawing, and the follower 14d is lowered on the inclined surface 22a (refer to FIG. 5) and the door 4 is guided in the closing direction. Thereby, as shown in FIG. 22, the door 4 is closed. Thereafter, the slider 59 is disposed at the retracted position as shown in FIG. 16 described above.

因此，門4在從切換位置Ps至閉止位置P0之間以對應於滑動件59的旋轉速度的規定速度而關閉，且藉由門4的自身重量限制加速的速度。因此，滑動件59及凸輪表面73a構成限制部，該限制部限制由對門4施力的第一自閉機構部產生的門4的關閉的速度。Therefore, the door 4 is closed at a prescribed speed corresponding to the rotational speed of the slider 59 from the switching position Ps to the closed position P0, and the speed of acceleration is limited by the weight of the door 4 itself. Therefore, the slider 59 and the cam surface 73a constitute a restricting portion that restricts the speed at which the door 4 is closed by the first self-closing mechanism portion that urges the door 4.

由此，緩和藉由第一自閉機構部加速的門4在閉止位置P0停止時的衝擊。因此，能夠降低因衝擊造成的貯藏物的飛散及衝擊音 。又，由於門4的關閉速度被限制為低速，因此能夠於本體部2的前面配置的手指接觸被關閉的門4的內表面時，使手指容易退避。因此，能夠防止閉門時夾到手指。Thereby, the impact when the door 4 accelerated by the first closing mechanism portion is stopped at the closing position P0 is alleviated. Therefore, it is possible to reduce the scattering and impact sound of the storage due to the impact. Further, since the closing speed of the door 4 is restricted to a low speed, the finger can be easily retracted when the finger disposed on the front surface of the main body portion 2 contacts the inner surface of the closed door 4. Therefore, it is possible to prevent the finger from being caught when the door is closed.

再者，門4藉由手動而被關閉至閉止位置P0的情況下，由於滑動件59配置在退避位置，因此能夠防止滑動件59與導引部60之間的干擾而關閉門4。又，也可以與第一實施方式相同地，在門4藉由手動而被關閉至閉止位置P0的情況下，防止馬達52的驅動。Further, when the door 4 is manually closed to the closed position P0, since the slider 59 is disposed at the retracted position, the door 4 can be closed by preventing interference between the slider 59 and the guide portion 60. Further, similarly to the first embodiment, when the door 4 is manually closed to the closed position P0, the driving of the motor 52 can be prevented.

根據本實施方式，能夠獲得與第一實施方式相同的效果。又，藉由進行旋轉的滑動件59與凸輪表面74a，能夠容易地實現在區間T2對門4往關閉的方向進行施力的第二自閉機構部。又，藉由進行旋轉的滑動件59與凸輪表面63a，能夠容易地實現在區間S2對門4往打開的方向進行施力的第二開放機構部。According to the present embodiment, the same effects as those of the first embodiment can be obtained. Further, by the rotating slider 59 and the cam surface 74a, the second self-closing mechanism portion that biases the door 4 in the direction in which the door 4 is closed can be easily realized. Further, by the rotating slider 59 and the cam surface 63a, the second opening mechanism portion that biases the door 4 in the direction in which the door 4 is opened can be easily realized.

又，藉由以滑動件59與凸輪表面73a形成的限制部，限制由第一自閉機構部產生的門4的速度。由此，能夠降低因關閉門4時的衝擊造成貯藏物的飛散及衝擊音，且防止夾到手指。Further, the speed of the door 4 generated by the first self-closing mechanism portion is restricted by the restricting portion formed by the slider 59 and the cam surface 73a. Thereby, it is possible to reduce the scattering of the stored object and the impact sound due to the impact when the door 4 is closed, and to prevent the finger from being caught.

在本實施方式中，也可以省略肋63而滑動件59在凸輪表面73a上滑動而打開門4。又，也可以省略肋73而將肋74配置在相對於中心線CL而與本實施方式對稱的位置。In the present embodiment, the rib 63 may be omitted and the slider 59 may slide on the cam surface 73a to open the door 4. Further, the ribs 73 may be omitted and the ribs 74 may be disposed at positions symmetrical with respect to the center line CL and in the present embodiment.

又，也可以將多個滑動件59旋轉對稱地配置。由此，能夠將開門驅動後的滑動件59迅速地配置在退避位置。Further, the plurality of sliders 59 may be arranged in rotational symmetry. Thereby, the slider 59 after driving the door can be quickly placed at the retracted position.

＜第四實施方式＞ 　　接著，圖23係表示第四實施方式的冰箱1之正面圖。為了便於說明，對與前述圖16～圖22所示的第三實施方式相同的部分標記相同的符號。本實施方式能夠從左右擇一地打開門4，且設置有與導引部60的肋74相對於中心線CL而對稱的肋64（參照圖29）。又，省略凹凸部22而在角材11（參照圖25）上形成傾斜面，且代替從動件14d而設置滾子18（參照圖25）。其他部分與第三實施方式相同。<Fourth embodiment> Next, Fig. 23 is a front view showing a refrigerator 1 of a fourth embodiment. For the sake of convenience of explanation, the same portions as those of the third embodiment shown in FIGS. 16 to 22 are denoted by the same reference numerals. In the present embodiment, the door 4 can be opened from the left and right, and a rib 64 that is symmetrical with respect to the center line CL of the rib 74 of the guide portion 60 can be provided (see FIG. 29). Further, the uneven portion 22 is omitted, and an inclined surface is formed on the angle member 11 (see FIG. 25), and a roller 18 is provided instead of the follower 14d (see FIG. 25). The other parts are the same as the third embodiment.

冷藏室3的門4在左右端具有手柄4a、4b，且以樞支軸4c或樞支軸4d樞支而能夠從左右兩方向中擇一地進行開閉。The door 4 of the refrigerating compartment 3 has handles 4a and 4b at the left and right ends, and is pivotally supported by the pivot shaft 4c or the pivot shaft 4d to be selectively opened and closed from the left and right directions.

圖24係表示冰箱1之打開上部的門4的狀態之立體圖。在冷藏室3的上方的左右兩端部配置一對的支撐構件10，在下方配置於左右方向延伸的角材11。在各支撐構件10及門4的上面的左右兩端部設置相對於門4的中心線而左右對稱地配置的一對凸輪機構12。在角材11的左右兩端部及門4的下面的左右兩端部設置相同的一對凸輪機構12。Fig. 24 is a perspective view showing a state in which the door 4 of the upper portion of the refrigerator 1 is opened. A pair of support members 10 are disposed at right and left end portions above the refrigerating chamber 3, and the angle members 11 extending in the left-right direction are disposed below. A pair of cam mechanisms 12 that are disposed bilaterally symmetrically with respect to the center line of the door 4 are provided at the left and right end portions of the upper surface of each of the support members 10 and the door 4. The same pair of cam mechanisms 12 are provided at the right and left end portions of the angle member 11 and the left and right end portions of the lower surface of the door 4.

藉由在門4的上下分別設置的左右一對凸輪機構12而對門4與本體部2進行卡合及解除卡合，構成雙開的門4。又，在門4的下面的中央部設置於角材11上滾動的滾子18（參照圖25）。The door 4 and the main body 2 are engaged and disengaged by a pair of right and left cam mechanisms 12 provided on the upper and lower sides of the door 4, thereby forming a double-opening door 4. Further, a roller 18 that rolls on the angle member 11 is provided at a central portion of the lower surface of the door 4 (see Fig. 25).

圖25、圖26係表示角材11及滾子18之側面剖面圖及正面剖面圖。在角材11的水平部11h的後端部設置使後方往下方傾斜的傾斜面11a，在前端部設置使前方往下方傾斜的傾斜面11c。在傾斜面11a的上端與傾斜面11c的上端之間設置水平面11d。25 and 26 are a side cross-sectional view and a front cross-sectional view showing the angle member 11 and the roller 18. An inclined surface 11a for inclining the rear side is provided at the rear end portion of the horizontal portion 11h of the angle member 11, and an inclined surface 11c for inclining the front side downward is provided at the front end portion. A horizontal surface 11d is provided between the upper end of the inclined surface 11a and the upper end of the inclined surface 11c.

在門4（參照圖24）的下面藉由插通至貫通孔17a的螺桿（不圖示）安裝支撐構件17。在支撐構件17的後部，軸支左右配置有旋轉軸的多個滾子18。The support member 17 is attached to the lower surface of the door 4 (refer to FIG. 24) by a screw (not shown) inserted into the through hole 17a. In the rear portion of the support member 17, a plurality of rollers 18 having a rotating shaft are disposed on the right and left sides of the shaft.

當滾子18配置在傾斜面11a上時，門4因自身重量而被往關閉的方向施力。因此，滾子18及傾斜面11a構成對門4往關閉的方向進行施力的第一自閉機構部。與前述的圖5相同地，第一自閉機構部在將滾子18配置在傾斜面11a的上端的第一自閉開始位置P2與閉止位置P0（第一自閉結束位置）之間的區間T1對門4進行施力。When the roller 18 is disposed on the inclined surface 11a, the door 4 is biased in the direction of closing due to its own weight. Therefore, the roller 18 and the inclined surface 11a constitute a first self-closing mechanism portion that biases the door 4 in the direction in which the door 4 is closed. Similarly to the above-described FIG. 5, the first self-closing mechanism portion is disposed between the first self-closing start position P2 and the closed position P0 (first self-closing end position) where the roller 18 is disposed at the upper end of the inclined surface 11a. T1 applies force to the door 4.

又，當滾子18配置在傾斜面11c上時，門4因自身重量而被往打開的方向施力。因此，滾子18及傾斜面11c構成對門4往打開的方向進行施力的第一開放機構部。與前述的圖5相同地，第一開放機構部在將滾子18配置在傾斜面11c的上端的第一開放開始位置P3與配置在下端的第一開放結束位置P5之間的區間S1對門4進行施力。Further, when the roller 18 is disposed on the inclined surface 11c, the door 4 is biased in the direction of opening due to its own weight. Therefore, the roller 18 and the inclined surface 11c constitute a first opening mechanism portion that biases the door 4 in the direction in which it opens. Similarly to the above-described FIG. 5, the first opening mechanism portion is disposed in the section S1 between the first opening start position P3 where the roller 18 is disposed at the upper end of the inclined surface 11c and the first opening end position P5 disposed at the lower end. Apply force.

圖27係表示門4上方之凸輪機構12之俯視圖，且表示門4已被關閉的狀態。又，圖28係圖27之沿A-A剖面圖。配置在左右兩端部的凸輪機構12具備：設置在支撐構件10的鉸鏈銷21、肋24、第一卡合突起25（分別在圖中以影線（hatching）表示）、與設置在門4的槽凸輪31、凸座（boss）34、第二卡合突起35。Fig. 27 is a plan view showing the cam mechanism 12 above the door 4, and shows a state in which the door 4 has been closed. 28 is a cross-sectional view taken along line A-A of FIG. 27. The cam mechanism 12 disposed at the left and right end portions includes a hinge pin 21, a rib 24, and a first engagement projection 25 (shown by hatching in the figure) provided on the support member 10, and is disposed at the door 4 The groove cam 31, the boss 34, and the second engagement protrusion 35.

鉸鏈銷21由被***成型（insert molding）於支撐構件10的金屬而構成，形成門4的樞支軸4c及樞支軸4d（參照圖23）。肋24藉由樹脂成型而形成拱形狀，且配置在鉸鏈銷21的周圍。在肋24的內面形成由與鉸鏈銷21同心的圓筒面構成的導引面24a。再者，也可以藉由多數的銷或突起部形成肋24的導引面24a，且以包絡面成為與鉸鏈銷21同心的圓弧的方式形成。即，只要沿著與鉸鏈銷21同心的圓弧上形成導引面24a即可。The hinge pin 21 is formed of a metal that is insert molded to the support member 10, and forms a pivot shaft 4c of the door 4 and a pivot shaft 4d (see Fig. 23). The rib 24 is formed into an arch shape by resin molding, and is disposed around the hinge pin 21. A guide surface 24a formed of a cylindrical surface concentric with the hinge pin 21 is formed on the inner surface of the rib 24. Further, the guide surface 24a of the rib 24 may be formed by a plurality of pins or protrusions, and the envelope surface may be formed as an arc having a concentricity with the hinge pin 21. That is, the guide surface 24a may be formed along an arc that is concentric with the hinge pin 21.

第一卡合突起25配置在左右的鉸鏈銷21之間。在第一卡合突起25對向設置與近的一方的鉸鏈銷21同心的圓筒面25a、和與遠的一方的鉸鏈銷21同心的圓筒面25b。The first engagement projections 25 are disposed between the right and left hinge pins 21. The first engagement projection 25 has a cylindrical surface 25a that is concentric with the adjacent one of the hinge pins 21, and a cylindrical surface 25b that is concentric with the distal one of the hinge pins 21.

槽凸輪31、凸座34及第二卡合突起35係藉由一體地樹脂成型的突輪構件30而形成，在門4的上面安裝凸輪構件30。槽凸輪31與鉸鏈銷21卡合，且具有連續的第一槽部32與第二槽部33。第一槽部32向本體部2側開放，且以在與樞支軸4c、4d垂直的面內開放端朝向內側的方式傾斜形成。第二槽部33連續於與第一槽部32的開放端相反的端部，從第一槽部32朝向外側彎曲而於遠離第一槽部32的開放端的方向延伸。The groove cam 31, the boss 34, and the second engagement projection 35 are formed by a resin-formed piercer member 30, and the cam member 30 is attached to the upper surface of the door 4. The grooved cam 31 is engaged with the hinge pin 21 and has a continuous first groove portion 32 and a second groove portion 33. The first groove portion 32 is open to the side of the main body portion 2, and is formed to be inclined so that the open end in the plane perpendicular to the pivot shafts 4c and 4d faces inward. The second groove portion 33 is continuous with the end portion opposite to the open end of the first groove portion 32, and is bent outward from the first groove portion 32 to extend away from the open end of the first groove portion 32.

凸座34凹設有第二槽部33，且具有在肋24的導引面24a滑動的圓筒面34a。又，在凸座34的周面設置凹部34b（參照圖30），該凹部34b在後述的第一卡止位置迴避與肋24的干擾。再者，在肋24的導引面24a由圓筒面構成的情況下，也可以藉由多數的銷或突起部而形成凸座34的周面。即，也可以以形成凸座34的周面的多數的銷或突起部的包絡面成為圓筒面的方式形成。The boss 34 is recessed with a second groove portion 33 and has a cylindrical surface 34a that slides on the guide surface 24a of the rib 24. Further, a concave portion 34b (see FIG. 30) is provided on the circumferential surface of the boss 34, and the concave portion 34b avoids interference with the rib 24 at a first locking position to be described later. Further, when the guide surface 24a of the rib 24 is formed of a cylindrical surface, the circumferential surface of the boss 34 may be formed by a plurality of pins or projections. In other words, the enveloping surface of the plurality of pins or projections forming the peripheral surface of the boss 34 may be formed to have a cylindrical surface.

第二卡合突起35具有與第一卡合突起25的圓筒面25a、25b分別滑動的滑動面35a、35b。在突輪構件30，於第二卡合突起35的周圍凹設有迴避與第一卡合突起25的干擾的凹槽36。The second engagement projection 35 has sliding surfaces 35a and 35b that slide with the cylindrical surfaces 25a and 25b of the first engagement projection 25, respectively. In the quake member 30, a groove 36 that avoids interference with the first engaging projection 25 is recessed around the second engaging projection 35.

圖29係表示冰箱1之俯視圖。門開閉裝置50與第三實施方式相同地，具有馬達52、蝸桿53、蝸輪54、減速齒輪55、及減速齒輪56。在減速齒輪56的下面設置滑動件59。Fig. 29 is a plan view showing the refrigerator 1. Similarly to the third embodiment, the door opening and closing device 50 includes a motor 52, a worm 53, a worm wheel 54, a reduction gear 55, and a reduction gear 56. A slider 59 is provided below the reduction gear 56.

又，導引部60相對於中心線CL對稱地設置，具有往上方突出的肋63、肋64、肋73及肋74。肋63、肋73及肋74與第三實施方式相同地形成。肋64相對於中心線CL與肋63對稱地形成，具有凸輪表面64a（第一凸輪表面）。Further, the guide portion 60 is provided symmetrically with respect to the center line CL, and has ribs 63, ribs 64, ribs 73, and ribs 74 that protrude upward. The rib 63, the rib 73, and the rib 74 are formed in the same manner as in the third embodiment. The rib 64 is formed symmetrically with respect to the center line CL and the rib 63, and has a cam surface 64a (first cam surface).

當藉由驅動部58的驅動而減速齒輪56往圖中順時針CW旋轉時，滑動件59在圖中左方的凸輪表面63a進行滑動。此時，門4被以右側的樞支軸4c樞支並進行旋動。又，當藉由驅動部58的驅動而減速齒輪56往圖中逆時針CCW旋轉時，滑動件59在圖中右方的凸輪表面73a進行滑動。此時，門4被以左側的樞支軸4d樞支並進行旋動。When the reduction gear 56 is rotated clockwise CW in the drawing by the driving of the driving portion 58, the slider 59 slides on the left cam surface 63a in the drawing. At this time, the door 4 is pivoted and pivoted by the pivot shaft 4c on the right side. Further, when the reduction gear 56 is rotated counterclockwise CCW in the drawing by the driving of the driving portion 58, the slider 59 slides on the right cam surface 73a in the drawing. At this time, the door 4 is pivotally supported by the pivot shaft 4d on the left side and is rotated.

接著，舉例說明從右方對門4的開閉時的動作進行開閉的情況。從左方對門4進行開閉的情況也相同。在門4的閉止狀態下兩側的凸輪機構12配置在圖27所示的第一卡止位置。即，左右的鉸鏈銷21配置在第一槽部32與第二槽部33之間的連結部。又，凸座34的凹部34b（參照圖30）沿著肋24的導引面24a配置。Next, a case where the operation at the time of opening and closing of the door 4 is opened and closed from the right side will be described as an example. The same applies to the case where the door 4 is opened and closed from the left side. The cam mechanism 12 on both sides in the closed state of the door 4 is disposed at the first locking position shown in FIG. That is, the left and right hinge pins 21 are disposed at the joint portion between the first groove portion 32 and the second groove portion 33. Further, the concave portion 34b (see FIG. 30) of the boss 34 is disposed along the guide surface 24a of the rib 24.

由於第一槽部32在垂直於樞支軸4d的面內相對於前後方向傾斜，因此鉸鏈銷21不會從左右的第一槽部32的開放端脫離。因此，能夠防止門4的脫落。Since the first groove portion 32 is inclined with respect to the front-rear direction in a plane perpendicular to the pivot shaft 4d, the hinge pin 21 does not come off from the open ends of the left and right first groove portions 32. Therefore, the falling of the door 4 can be prevented.

在本實施方式中，具備：從右方對門4進行開門的操作按鈕、與從左方對門4進行開門的操作按鈕。再者，若是使用者能夠指示門4的開門方向，則操作按鈕也可以不獨立。In the present embodiment, an operation button for opening the door from the right side and an operation button for opening the door from the left side are provided. Furthermore, if the user can indicate the door opening direction of the door 4, the operation button may not be independent.

當從右方對門4進行開門的操作按鈕***作時，藉由驅動部58從右方對門4進行開門驅動。即，減速齒輪56在圖29中往逆時針CCW旋轉，且滑動件59隨著在Y方向的移動而往X方向的遠離樞支軸4d的方向（圖中右方）進行移動。由此，滑動件59在肋73的凸輪表面73a滑動而對門4往圖中右方進行按壓。When the operation button for opening the door to the door 4 from the right is operated, the door 4 is driven to open from the right by the drive unit 58. That is, the reduction gear 56 rotates counterclockwise CCW in FIG. 29, and the slider 59 moves in the direction of the X direction away from the pivot shaft 4d (right side in the drawing) in accordance with the movement in the Y direction. Thereby, the slider 59 slides on the cam surface 73a of the rib 73, and presses the door 4 to the right in the figure.

由此，已卡合在左側的槽凸輪31的鉸鏈銷21，在從第一槽部32遠離的方向於第二槽部33內往外側（圖中左方）進行相對移動。由於兩方的鉸鏈銷21的間隔為固定，因此當左側的鉸鏈銷21朝向外側進行相對移動時，右側的鉸鏈銷21往內側進行移動。第一槽部32的開放端朝向門4的內側傾斜，且右側的鉸鏈銷21藉由往內側進行移動並藉由第一槽部32的卡合導引而朝向第一槽部32的開放端進行相對移動。因此，門4一邊旋動一邊從左側的樞支軸4d側往右側的開放側進行滑動移動，門4從右方被打開。Thereby, the hinge pin 21 of the groove cam 31 that has been engaged with the left side is relatively moved inward from the inside of the second groove portion 33 in the direction away from the first groove portion 32 (to the left in the drawing). Since the interval between the hinge pins 21 of both sides is fixed, when the hinge pin 21 on the left side relatively moves toward the outside, the hinge pin 21 on the right side moves to the inside. The open end of the first groove portion 32 is inclined toward the inner side of the door 4, and the right hinge pin 21 is moved toward the inner side and is directed toward the open end of the first groove portion 32 by the engagement guide of the first groove portion 32. Make relative movements. Therefore, the door 4 is slidably moved from the left pivot shaft 4d side to the right open side while being rotated, and the door 4 is opened from the right side.

當藉由滑動件59與凸輪表面73a之間的滑動而門4往開放方向進行移動時，滾子18對抗因門4的自身重量產生的作用力而於傾斜面11a上昇（參照圖25），門4一邊上昇一邊被打開。又，滾子18在水平面11d滑動（參照圖25）而門4水平地被打開。When the door 4 moves in the opening direction by the sliding between the slider 59 and the cam surface 73a, the roller 18 rises against the urging force due to the weight of the door 4 on the inclined surface 11a (refer to FIG. 25). The door 4 is opened while being raised. Further, the roller 18 slides on the horizontal plane 11d (see Fig. 25) and the door 4 is horizontally opened.

然後，如圖30所示，左側的鉸鏈銷21到達第二槽部33的已被關閉的端部，凸輪機構12配置在第二卡止位置。此時，左側的凸座34的圓筒面34a與肋24的導引面24a的滑動開始。由此，藉由鉸鏈銷21與第二槽部33之間的卡合限制門4的往大致前後方向的移動，藉由凸座34與肋24之間的卡合限制門4的往大致左右方向的移動。因此，凸輪機構12在第二卡止位置對門4進行滑動限制並旋動自如地進行支撐。Then, as shown in FIG. 30, the left hinge pin 21 reaches the closed end of the second groove portion 33, and the cam mechanism 12 is disposed at the second locking position. At this time, the sliding of the cylindrical surface 34a of the boss 34 on the left side and the guide surface 24a of the rib 24 is started. Thereby, the engagement between the hinge pin 21 and the second groove portion 33 restricts the movement of the door 4 in the substantially front-rear direction, and the engagement between the boss 34 and the rib 24 restricts the direction of the door 4 to the left and right. The movement of the direction. Therefore, the cam mechanism 12 restricts the sliding of the door 4 at the second locking position and rotatably supports it.

又，右側的第一卡合突起25的圓筒面25b與第二卡合突起35的滑動面35b進行滑動，且左側的第一卡合突起25的圓筒面25a與第二卡合突起35的滑動面35a進行滑動。由此，使門4能夠更穩定地進行旋動。Further, the cylindrical surface 25b of the first engagement projection 25 on the right side slides with the sliding surface 35b of the second engagement projection 35, and the cylindrical surface 25a and the second engagement projection 35 of the first engagement projection 25 on the left side are slid. The sliding surface 35a slides. Thereby, the door 4 can be rotated more stably.

當進一步打開門4時，如圖31所示，右側的鉸鏈銷21與槽凸輪31之間的卡合被解除。又，右側的第一卡合突起25與第二卡合突起35之間的卡合被解除。由此，右側的凸輪機構12的卡合被解除。門4以左側的鉸鏈銷21為中心被限制滑動地進行旋動。When the door 4 is further opened, as shown in FIG. 31, the engagement between the right hinge pin 21 and the groove cam 31 is released. Further, the engagement between the first engagement projection 25 on the right side and the second engagement projection 35 is released. Thereby, the engagement of the right cam mechanism 12 is released. The door 4 is slidably restricted in rotation about the hinge pin 21 on the left side.

如圖32所示，滑動件59在右側的凸輪機構12的卡合被解除後也繼續在凸輪表面73a上滑動。當門4被打開規定量時，滑動件59到達凸輪表面73a的終端（後端），結束開門驅動。因此，包含滑動件59 的驅動部58及凸輪表面73a構成在區間S2（參照圖5）對門4往打開的方向進行施力的第二開放機構部。從左方打開門4的情況也相同地，包含滑動件59 的驅動部58及凸輪表面63a構成第二開放機構部。As shown in Fig. 32, the slider 59 continues to slide on the cam surface 73a after the engagement of the right cam mechanism 12 is released. When the door 4 is opened by a prescribed amount, the slider 59 reaches the terminal (rear end) of the cam surface 73a, and the door opening drive is ended. Therefore, the driving portion 58 including the slider 59 and the cam surface 73a constitute a second opening mechanism portion that biases the door 4 in the direction in which the door 4 is opened in the section S2 (see FIG. 5). Similarly, in the case where the door 4 is opened from the left side, the driving portion 58 including the slider 59 and the cam surface 63a constitute the second opening mechanism portion.

當結束由驅動部58進行的開門驅動時，滾子18於傾斜面11c（參照圖25）進行滑動，藉由對門4因自身重量進行施力的第一開放機構部而將門4打開。由此，如圖33所示滑動件59被配置在遠離凸輪表面73a的位置。其後，當門4到達第一開放結束位置P5（參照圖5）而滾子18被配置在水平面11d上時，門4成為已充分打開的狀態，能夠以手動容易地打開門4。當結束由驅動部58進行的開門驅動時，對馬達52進行逆轉驅動而滑動件59被配置至退避位置，馬達52被停止。When the door opening drive by the drive unit 58 is completed, the roller 18 slides on the inclined surface 11c (see FIG. 25), and the door 4 is opened by the first opening mechanism portion that biases the door 4 by its own weight. Thereby, the slider 59 is disposed at a position away from the cam surface 73a as shown in FIG. Thereafter, when the door 4 reaches the first opening end position P5 (refer to FIG. 5) and the roller 18 is placed on the horizontal plane 11d, the door 4 is fully opened, and the door 4 can be easily opened manually. When the door opening drive by the drive unit 58 is completed, the motor 52 is reversely driven and the slider 59 is placed at the retracted position, and the motor 52 is stopped.

接著，在關閉門4的情況下左右的凸輪機構12進行與上述相反的動作。當從門4的開啟狀態以手動關閉門4時，滾子18於傾斜面11c（參照圖25）滑動而門4上昇。當偵測感測器偵測出門4已被關閉至第二自閉開始位置P4（參照圖5）時，藉由驅動部58對門4進行閉門驅動。Next, when the door 4 is closed, the left and right cam mechanisms 12 perform the opposite operation to the above. When the door 4 is manually closed from the open state of the door 4, the roller 18 slides on the inclined surface 11c (refer to FIG. 25) and the door 4 ascends. When the detecting sensor detects that the door 4 has been closed to the second self-closing start position P4 (refer to FIG. 5), the door 4 is driven by the driving unit 58 to close the door.

如圖34所示，藉由閉門驅動而減速齒輪56往圖中順時針CW旋轉，退避位置的滑動件59往X方向的接近樞支軸4d的方向（圖中右方）進行移動。由此，滑動件59在肋64的凸輪表面64a滑動而門4被關閉。As shown in Fig. 34, the reduction gear 56 is rotated clockwise CW in the figure by the door closing drive, and the slider 59 at the retracted position moves in the direction of the X-direction near the pivot shaft 4d (right side in the drawing). Thereby, the slider 59 slides on the cam surface 64a of the rib 64 and the door 4 is closed.

如圖35所示，當門4被關閉規定量時，滑動件59到達凸輪表面64a的終端（前端）。此時，滾子18配置在傾斜面11a（參照圖25）上，門4配置在較第一自閉開始位置P2靠近門閉鎖側的第二自閉結束位置P1。因此，包含滑動件59 的驅動部58及凸輪表面64a構成在區間T2（參照圖5）對門4往打開的方向進行施力的第二自閉機構部。從左方打開門4的情況也相同地，包含滑動件59 的驅動部58及凸輪表面74a構成第二自閉機構部。As shown in Fig. 35, when the door 4 is closed by a prescribed amount, the slider 59 reaches the terminal (front end) of the cam surface 64a. At this time, the roller 18 is disposed on the inclined surface 11a (see FIG. 25), and the door 4 is disposed at the second self-closing end position P1 closer to the door closing side than the first self-closing start position P2. Therefore, the drive unit 58 including the slider 59 and the cam surface 64a constitute a second self-closing mechanism unit that biases the door 4 in the direction in which the door 4 is opened in the section T2 (see FIG. 5). Similarly, in the case where the door 4 is opened from the left side, the driving portion 58 including the slider 59 and the cam surface 74a constitute the second autonomous closing mechanism portion.

當門4關閉至第二自閉結束位置P1時，被第一自閉機構部往關閉的方向施力，滑動件59遠離凸輪表面64a。然後，如圖36所示，在滑動件59與凸輪表面63a抵接的切換位置Ps配置門4，滑動件59的滑動面從凸輪表面64a被切換成凸輪表面63a。When the door 4 is closed to the second self-closing end position P1, the first self-closing mechanism portion is biased in the closing direction, and the slider 59 is away from the cam surface 64a. Then, as shown in Fig. 36, the door 4 is disposed at the switching position Ps where the slider 59 abuts against the cam surface 63a, and the sliding surface of the slider 59 is switched from the cam surface 64a to the cam surface 63a.

此時，滑動件59抵抗第一自閉機構部的作用力而支撐門4，門4的關閉速度被限制。然後，藉由滑動件59的圖中逆時針CCW的旋轉而門4被引導往關閉的方向，如圖37所示，門4被關閉。因此，藉由滑動件59及凸輪表面63a形成限制由第一自閉機構部產生的門4的關閉速度的限制部。從左方打開門4的情況也相同，藉由滑動件59及凸輪表面73a形成限制由第一自閉機構部產生的門4的關閉速度的限制部。由此，緩和藉由第一自閉機構部關閉門4時的衝擊。At this time, the slider 59 supports the door 4 against the urging force of the first self-closing mechanism portion, and the closing speed of the door 4 is restricted. Then, the door 4 is guided in the closing direction by the rotation of the counterclockwise CCW in the figure of the slider 59, as shown in Fig. 37, the door 4 is closed. Therefore, the restricting portion that restricts the closing speed of the door 4 generated by the first self-closing mechanism portion is formed by the slider 59 and the cam surface 63a. The same applies to the case where the door 4 is opened from the left side, and the restricting portion that restricts the closing speed of the door 4 by the first self-closing mechanism portion is formed by the slider 59 and the cam surface 73a. Thereby, the impact when the door 4 is closed by the first self-closing mechanism portion is alleviated.

根據本實施方式，能夠獲得與第三實施方式相同的效果。又，從右方打開門4時藉由滑動件59進行滑動的凸輪表面63a，形成從左方打開門4時的限制部。相同地，從左方打開門4時藉由滑動件59進行滑動的凸輪表面73a，形成從右方打開門4時的限制部。因此，能夠將構件共通化而削減成本。According to the present embodiment, the same effects as those of the third embodiment can be obtained. Further, when the door 4 is opened from the right side, the cam surface 63a which is slid by the slider 59 forms a restricting portion when the door 4 is opened from the left side. Similarly, the cam surface 73a that slides by the slider 59 when the door 4 is opened from the left side forms a restricting portion when the door 4 is opened from the right side. Therefore, the components can be made common and the cost can be reduced.

在本實施方式中，也可以在門4設置鉸鏈銷21及肋24，在本體部2設置槽凸輪31及凸座34。又，也可以在門4設置第一卡合突起25，在本體部2設置第二卡合突起35。In the present embodiment, the hinge pin 21 and the rib 24 may be provided in the door 4, and the groove cam 31 and the boss 34 may be provided in the main body 2. Further, the first engagement projection 25 may be provided in the door 4, and the second engagement projection 35 may be provided in the main body portion 2.

在第一～第四實施方式中，雖然第一自閉機構部及第一開放機構部對門4因自身重量進行施力，但也可以藉由彈簧等的彈性體對門4進行施力。又，雖然第二自閉機構部及第二開放機構部藉由馬達52的驅動對門4進行施力，但也可以藉由具有棘輪（ratchet）機構的彈性體等，在門4往一方向移動時對門4進行施力，而在往另一方向移動時解除作用力。In the first to fourth embodiments, the first self-closing mechanism portion and the first opening mechanism portion bias the door 4 by its own weight, but the door 4 may be biased by an elastic body such as a spring. Further, although the second self-closing mechanism unit and the second opening mechanism unit bias the door 4 by the driving of the motor 52, the door 4 may be moved in one direction by an elastic body having a ratchet mechanism or the like. When the door 4 is biased, the force is released when moving in the other direction.

又，雖然相對於進行旋動的門4設置第一自閉機構部、第一開放機構部、第二自閉機構部及第二開放機構部，但也可以相對於滑動式的門4設置第一自閉機構部、第一開放機構部、第二自閉機構部及第二開放機構部。Further, although the first self-closing mechanism portion, the first opening mechanism portion, the second self-closing mechanism portion, and the second opening mechanism portion are provided to the door 4 that performs the rotation, the first door mechanism 4 may be provided with respect to the sliding door 4. a self-closing mechanism unit, a first opening mechanism unit, a second self-closing mechanism unit, and a second opening mechanism unit.

根據本發明，能夠利用於具備對門進行開閉的門開閉機構的冰箱等的機器。According to the present invention, it is possible to use a device such as a refrigerator having a door opening and closing mechanism that opens and closes a door.

1‧‧‧冰箱1‧‧‧ refrigerator

2‧‧‧本體部2‧‧‧ Body Department

3‧‧‧冷藏室3‧‧‧Refrigerator

3a‧‧‧開口面3a‧‧‧Open face

4、6、8‧‧‧門4, 6, 8‧‧

4a‧‧‧手柄4a‧‧‧handle

4c、4d‧‧‧樞支軸4c, 4d‧‧‧ pivot shaft

5‧‧‧冷凍室5‧‧‧Freezer

6‧‧‧蔬菜室6‧‧ ‧ vegetable room

9‧‧‧隔熱壁9‧‧‧Insulation wall

10、17、51‧‧‧支撐構件10, 17, 51‧‧‧ support members

11‧‧‧角材11‧‧‧ Anglewood

11a、11c‧‧‧傾斜面11a, 11c‧‧‧ sloped surface

11d‧‧‧水平面11d‧‧‧ horizontal plane

12‧‧‧凸輪機構12‧‧‧Cam mechanism

14‧‧‧軸承部14‧‧‧ Bearing Department

14a、14c‧‧‧傾斜面14a, 14c‧‧‧ sloped surface

14d‧‧‧從動件14d‧‧‧ Followers

18‧‧‧滾子18‧‧‧Roller

21‧‧‧鉸鏈銷21‧‧‧ Hinge pin

22‧‧‧凹凸部22‧‧‧

22a、22b、22c‧‧‧傾斜面22a, 22b, 22c‧‧‧ sloped surface

22d、22e‧‧‧水平面22d, 22e‧‧‧ water level

24‧‧‧肋24‧‧‧ rib

25‧‧‧第一卡合突起25‧‧‧First engagement protrusion

30‧‧‧凸輪構件30‧‧‧Cam components

31‧‧‧槽凸輪31‧‧‧ slot cam

32‧‧‧第一槽部32‧‧‧First groove

33‧‧‧第二槽部33‧‧‧Second trough

34‧‧‧凸座34‧‧‧Seat

35‧‧‧第二卡合突起35‧‧‧Second snap projection

36‧‧‧凹槽36‧‧‧ Groove

50‧‧‧門開閉裝置50‧‧‧door opening and closing device

52‧‧‧馬達52‧‧‧Motor

53‧‧‧蝸桿53‧‧‧ worm

54‧‧‧蝸輪54‧‧‧ worm gear

55、56‧‧‧減速齒輪55, 56‧‧‧ reduction gear

57‧‧‧齒條57‧‧‧Rack

58‧‧‧驅動部58‧‧‧ Drive Department

59‧‧‧滑動件59‧‧‧Sliding parts

60‧‧‧導引部60‧‧‧Guidance

61、62、63、64、73、74‧‧‧肋61, 62, 63, 64, 73, 74‧‧ ‧ ribs

61a、62a、63a、64a、73a、74a‧‧‧凸輪表面61a, 62a, 63a, 64a, 73a, 74a‧‧‧ cam surface

CL‧‧‧中心線CL‧‧‧ center line

P0‧‧‧閉止位置（第一自閉結束位置）P0‧‧‧Closed position (first autistic end position)

P1‧‧‧第二自閉結束位置P1‧‧‧Second autistic end position

P2‧‧‧第一自閉開始位置P2‧‧‧ First autistic position

P3‧‧‧第一開放開始位置P3‧‧‧ first open start position

P4‧‧‧第二自閉開始位置P4‧‧‧Second autism starting position

P4’‧‧‧第二開放結束位置P4’‧‧‧ second open end position

P5‧‧‧第一開放結束位置P5‧‧‧ first open end position

Ps‧‧‧切換位置Ps‧‧‧Switch position

圖1係表示本發明第一實施方式的冰箱之正面圖。 　　圖2係表示本發明第一實施方式的冰箱之主要部位之側面剖面圖。 　　圖3係表示本發明第一實施方式的冰箱之角材之正面圖。 　　圖4係表示本發明第一實施方式的冰箱之凹凸部之俯視圖。 　　圖5係表示本發明第一實施方式的冰箱之凹凸部及從動件之展開圖。 　　圖6係表示本發明第一實施方式的冰箱之俯視圖。 　　圖7係用於說明本發明第一實施方式的冰箱之門開閉裝置之開門動作之俯視圖。 　　圖8係表示打開本發明第一實施方式的冰箱之門時的凹凸部及從動件之配置之展開圖。 　　圖9係表示打開本發明第一實施方式的冰箱之門時的凹凸部及從動件之配置之展開圖。 　　圖10係用於說明本發明第一實施方式的冰箱之門開閉裝置之開門動作之俯視圖。 　　圖11係表示打開本發明第一實施方式的冰箱之門時的凹凸部及從動件之配置之展開圖。 　　圖12係用於說明本發明第一實施方式的冰箱之門開閉裝置之開門動作之俯視圖。 　　圖13係用於說明本發明第一實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。 　　圖14係用於說明本發明第一實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。 　　圖15係表示本發明第二實施方式的冰箱之凹凸部及從動件之展開圖。 　　圖16係表示本發明第三實施方式的冰箱之俯視圖。 　　圖17係用於說明本發明第三實施方式的冰箱之門開閉裝置之開門動作之俯視圖。 　　圖18係用於說明本發明第三實施方式的冰箱之門開閉裝置之開門動作之俯視圖。 　　圖19係用於說明本發明第三實施方式的冰箱之門開閉裝置之開門動作之俯視圖。 　　圖20係用於說明本發明第三實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。 　　圖21係用於說明本發明第三實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。 　　圖22係用於說明本發明第三實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。 　　圖23係表示本發明第四實施方式的冰箱之正面圖。 　　圖24係表示本發明第四實施方式的冰箱之上部之立體圖。 　　圖25係表示本發明第四實施方式的冰箱之角材及滾子之側面剖面圖。 　　圖26係表示本發明第四實施方式的冰箱之角材及滾子之正面剖面圖。 　　圖27係表示本發明第四實施方式的冰箱之凸輪機構之俯視圖。 　　圖28係圖27之沿A-A剖面圖。 　　圖29係表示本發明第四實施方式的冰箱之俯視圖。 　　圖30係用於說明打開本發明第四實施方式的冰箱之門時的凸輪機構的動作之俯視圖。 　　圖31係用於說明打開本發明第四實施方式的冰箱之門時的凸輪機構的動作之俯視圖。 　　圖32係用於說明本發明第四實施方式的冰箱之門開閉裝置之開門動作之俯視圖。 　　圖33係用於說明本發明第四實施方式的冰箱之門開閉裝置之開門動作之俯視圖。 　　圖34係用於說明本發明第四實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。 　　圖35係用於說明本發明第四實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。 　　圖36係用於說明本發明第四實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。 　　圖37係用於說明本發明第四實施方式的冰箱之門開閉裝置之閉門動作之俯視圖。Fig. 1 is a front view showing a refrigerator according to a first embodiment of the present invention. Fig. 2 is a side cross-sectional view showing a main part of the refrigerator in the first embodiment of the present invention. Fig. 3 is a front elevational view showing the corner material of the refrigerator in the first embodiment of the present invention. Fig. 4 is a plan view showing a concavo-convex portion of the refrigerator in the first embodiment of the present invention. Fig. 5 is a development view showing a concavo-convex portion and a follower of the refrigerator according to the first embodiment of the present invention. Fig. 6 is a plan view showing the refrigerator in the first embodiment of the present invention. FIG. 7 is a plan view for explaining a door opening operation of the door opening and closing device of the refrigerator according to the first embodiment of the present invention. Fig. 8 is a development view showing the arrangement of the uneven portion and the follower when the door of the refrigerator according to the first embodiment of the present invention is opened. Fig. 9 is a development view showing the arrangement of the uneven portion and the follower when the door of the refrigerator according to the first embodiment of the present invention is opened. FIG. 10 is a plan view for explaining a door opening operation of the door opening and closing device of the refrigerator according to the first embodiment of the present invention. Fig. 11 is a developed view showing the arrangement of the uneven portion and the follower when the door of the refrigerator according to the first embodiment of the present invention is opened. FIG. 12 is a plan view for explaining a door opening operation of the door opening and closing device of the refrigerator according to the first embodiment of the present invention. FIG. 13 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator according to the first embodiment of the present invention. FIG. 14 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator according to the first embodiment of the present invention. Fig. 15 is a development view showing a concave-convex portion and a follower of the refrigerator in the second embodiment of the present invention. Fig. 16 is a plan view showing a refrigerator in a third embodiment of the present invention. Fig. 17 is a plan view for explaining a door opening operation of the door opening and closing device of the refrigerator according to the third embodiment of the present invention. 18 is a plan view for explaining a door opening operation of the door opening and closing device of the refrigerator according to the third embodiment of the present invention. 19 is a plan view for explaining a door opening operation of the door opening and closing device of the refrigerator according to the third embodiment of the present invention. 20 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator according to the third embodiment of the present invention. 21 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator according to the third embodiment of the present invention. 22 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator according to the third embodiment of the present invention. Fig. 23 is a front elevational view showing the refrigerator in the fourth embodiment of the present invention. Fig. 24 is a perspective view showing the upper portion of the refrigerator in the fourth embodiment of the present invention. Fig. 25 is a side sectional view showing a corner material and a roller of a refrigerator according to a fourth embodiment of the present invention. Fig. 26 is a front sectional view showing a corner material and a roller of a refrigerator according to a fourth embodiment of the present invention. Fig. 27 is a plan view showing a cam mechanism of a refrigerator according to a fourth embodiment of the present invention. Figure 28 is a cross-sectional view along line A-A of Figure 27. Fig. 29 is a plan view showing a refrigerator according to a fourth embodiment of the present invention. Fig. 30 is a plan view for explaining an operation of a cam mechanism when a door of a refrigerator according to a fourth embodiment of the present invention is opened. 31 is a plan view for explaining an operation of a cam mechanism when a door of a refrigerator according to a fourth embodiment of the present invention is opened. 32 is a plan view for explaining a door opening operation of the door opening and closing device of the refrigerator according to the fourth embodiment of the present invention. Fig. 33 is a plan view for explaining a door opening operation of the door opening and closing device of the refrigerator according to the fourth embodiment of the present invention. Fig. 34 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator in the fourth embodiment of the present invention. 35 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator according to the fourth embodiment of the present invention. 36 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator according to the fourth embodiment of the present invention. 37 is a plan view for explaining a door closing operation of the door opening and closing device of the refrigerator according to the fourth embodiment of the present invention.

Claims (7)

一種門開閉機構，具備具有開口面的本體部、與對上述開口面進行開閉的門，其特徵在於， 具備第一自閉機構部、與第二自閉機構部，上述第一自閉機構部係在從規定的第一自閉開始位置至已關閉上述門的第一自閉結束位置之間對上述門往關閉的方向進行施力；上述第二自閉機構部係在從較上述第一自閉開始位置靠近門開放側的第二自閉開始位置至較上述第一自閉開始位置靠近門閉鎖側的第二自閉結束位置之間對上述門往關閉的方向進行施力。A door opening and closing mechanism includes a main body portion having an opening surface and a door that opens and closes the opening surface, and includes a first self-closing mechanism portion and a second self-closing mechanism portion, and the first self-closing mechanism portion Applying a force to the direction in which the door is closed from a predetermined first self-closing start position to a first self-closing end position in which the door is closed; the second self-closing mechanism portion is from the first The self-closing start position is biased in a direction in which the door is closed from a second self-closing start position on the door open side to a second self-closing end position closer to the door lock side than the first self-closing start position. 如申請專利範圍第1項的門開閉機構，其中，在打開上述門時解除由第二自閉機構部進行的關閉上述門的方向的施力。The door opening and closing mechanism of claim 1, wherein the biasing of the direction in which the door is closed by the second self-closing mechanism unit is released when the door is opened. 如申請專利範圍第1或2項的門開閉機構，其具備第一開放機構部，該第一開放機構部從上述第二自閉開始位置附近的第一開放開始位置在門開放側對所述門往打開的方向進行施力。A door opening and closing mechanism according to claim 1 or 2, further comprising: a first opening mechanism portion, wherein the first opening mechanism portion is on the door opening side from a first opening start position near the second autism starting position The door is biased in the direction of opening. 如申請專利範圍第1至3項中任一項的門開閉機構，其中，由較上述第二自閉結束位置靠近門閉鎖側的切換位置與上述第一自閉結束位置之間的上述第一自閉機構部產生的作用力，小於由上述切換位置與上述第二自閉結束位置之間的上述第一自閉機構部產生的作用力。The door opening and closing mechanism according to any one of claims 1 to 3, wherein the first position between the switching position closer to the door closing side than the second self-closing end position and the first self-closing end position is The force generated by the self-closing mechanism unit is smaller than the force generated by the first self-closing mechanism unit between the switching position and the second self-closing end position. 如申請專利範圍第1至3項中任一項的門開閉機構，其具備限制部，該限制部限制由較上述第二自閉結束位置靠近門閉鎖側的切換位置與上述第一自閉結束位置之間的上述第一自閉機構部產生的上述門的關閉的速度。The door opening and closing mechanism according to any one of claims 1 to 3, further comprising a restricting portion that restricts a switching position closer to the door closing side than the second self-closing end position and the first self-closing end The speed at which the door is closed by the first self-closing mechanism portion between the positions. 如申請專利範圍第5項的門開閉機構，其中，上述樞支軸被配置在上述門的兩端部而能夠從兩端擇一地開閉上述門，並且具備從上述第一自閉結束位置對上述門往打開的方向進行施力的一對第二開放機構部，藉由在打開上述門的一方時對上述門進行施力的上述第二開放機構部，形成從另一方關閉上述門時的上述限制部。The door opening and closing mechanism according to claim 5, wherein the pivot shaft is disposed at both end portions of the door, and the door can be opened and closed from both ends, and the first self-closing end position is provided. a pair of second opening mechanism portions for biasing the door in the opening direction, and the second opening mechanism portion for biasing the door when the door is opened is formed to close the door from the other side The above restriction. 如申請專利範圍第6項的門開閉機構，其具備設置在上述本體部並藉由馬達驅動而進行旋轉的滑動件、與設置在上述門並在上述滑動件進行滑動的一對第一凸輪表面及一對第二凸輪表面； 從一方關閉上述門的上述第二自閉機構部係藉由上述滑動件及一方的上述第一凸輪表面而形成，並且打開上述門的一方的上述第二開放機構部係藉由上述滑動件及一方的上述第二凸輪表面而形成； 從另一方關閉上述門的上述第二自閉機構部係藉由上述滑動件及另一方的上述第一凸輪表面而形成，並且打開上述門的另一方的上述第二開放機構部係藉由上述滑動件及另一方的上述第二凸輪表面而形成； 在關閉上述門的一方時，上述滑動件往規定方向進行旋轉並在一方的上述第一凸輪表面進行滑動，在上述第二自閉結束位置從上述第一凸輪表面離開，在上述切換位置往上述規定方向的相反方向進行旋轉並在形成上述限制部的另一方的上述第二凸輪表面進行滑動。A door opening and closing mechanism according to claim 6, comprising: a slider provided on the main body portion and driven to rotate by a motor; and a pair of first cam surfaces provided on the door and sliding on the slider And a pair of second cam surfaces; the second self-closing mechanism portion that closes the door from one side is formed by the slider and one of the first cam surfaces, and the second opening mechanism that opens the door The portion is formed by the slider and the second cam surface; and the second self-closing mechanism portion that closes the door from the other is formed by the slider and the other first cam surface. And the second open mechanism portion that opens the other of the doors is formed by the slider and the other second cam surface; when the door is closed, the slider rotates in a predetermined direction and One of the first cam surfaces slides, and is separated from the first cam surface at the second self-closing end position, and goes up at the switching position The opposite direction of the predetermined direction is rotated to slide on the other second cam surface forming the restricting portion.
TW107104008A 2017-07-26 2018-02-05 Door opening and closing mechanism TWI692602B (en)

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JP2007024460A (en) * 2005-07-21 2007-02-01 Sharp Corp Door opening and closing mechanism, and refrigerator
JP4384188B2 (en) * 2007-02-09 2009-12-16 日立アプライアンス株式会社 refrigerator
JP4904222B2 (en) * 2007-08-20 2012-03-28 シャープ株式会社 Door opening / closing mechanism and refrigerator
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JP6125923B2 (en) * 2013-06-20 2017-05-10 シャープ株式会社 Door opening / closing mechanism and refrigerator
JP6325388B2 (en) * 2014-08-01 2018-05-16 日本電産サンキョー株式会社 Door operation assist device
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JP6415214B2 (en) * 2014-09-26 2018-10-31 株式会社シブタニ Door opening and closing device in toilet booth
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CN110892218A (en) 2020-03-17
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JPWO2019021506A1 (en) 2020-06-11
WO2019021506A1 (en) 2019-01-31

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