WO2024014750A1 - Height control apparatus for headrest and chair comprising same - Google Patents

Height control apparatus for headrest and chair comprising same Download PDF

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Publication number
WO2024014750A1
WO2024014750A1 PCT/KR2023/009077 KR2023009077W WO2024014750A1 WO 2024014750 A1 WO2024014750 A1 WO 2024014750A1 KR 2023009077 W KR2023009077 W KR 2023009077W WO 2024014750 A1 WO2024014750 A1 WO 2024014750A1
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WO
WIPO (PCT)
Prior art keywords
headrest
height adjustment
adjustment device
guide block
installation portion
Prior art date
Application number
PCT/KR2023/009077
Other languages
French (fr)
Korean (ko)
Inventor
윤대호
Original Assignee
주식회사 시디즈
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 주식회사 시디즈 filed Critical 주식회사 시디즈
Publication of WO2024014750A1 publication Critical patent/WO2024014750A1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/38—Support for the head or the back for the head

Definitions

  • the present invention relates to a headrest height adjustment device and a chair including the same (HEIGHT CONTROL APPARATUS FOR HEADREST AND CHAIR INCLUDING THE SAME). More specifically, the present invention relates to a headrest height adjustment device that not only facilitates the height adjustment but also allows the headrest to be stably positioned in the user's desired position. It relates to a headrest height adjustment device that can reduce operational trial and error by stopping at a low angle, and a chair including the same.
  • a headrest or neck rest (hereinafter collectively referred to as a 'headrest') is coupled to the upper side of the backrest of a chair to support the user's head or neck.
  • the posture when the user sits on the chair can be divided into a work sitting posture and a resting sitting posture. Basically, the body angle is changed to allow rest, and the headrest supports the user's head or neck to create a more comfortable posture. It plays a role in maintaining
  • Most headrests for chairs are fixed to the backrest or have a height adjustment function that adjusts them to fit the user's body.
  • the height adjustment function provides the advantage of improving user convenience by adjusting the height of the headrest according to the physical condition and sitting posture of the seated person.
  • Patent Publication No. 10-2012-0134232 published on December 12, 2012 (hereinafter referred to as 'prior art').
  • Figure 1 is a perspective view showing an example of a headrest height adjustment device according to the prior art
  • Figure 2 is a detailed exploded perspective view of the headrest height adjustment device included in the structure of Figure 1.
  • the headrest height adjustment device (70, referred to as 'height adjustment member' in the 'prior art' specification) according to the prior art, as shown in Figures 1 and 2, includes a backrest portion 20 and a backrest portion ( It is provided between the frame 30 provided to support the rear side of the 20), and the support member 40 is moved in the up and down direction via the installation member 50 in which the moving hole 52 is formed. The head is mounted thereon. The height of the rest (10) is adjusted.
  • the headrest height adjustment device 70 includes a locking groove member 72, an elastic protrusion 74, a receiving member 78, and an elastic bracket 76.
  • the locking groove member 72 is protruded to have a plurality of locking grooves 73 in the vertical direction on the front side of the support member 40, and the plurality of locking grooves 73 have the support member 40 in the vertical direction. It is disclosed that the hemispherical elastic protrusion 74 is elastically caught while being moved to limit the height.
  • the headrest height adjustment device 70 holds the headrest 10 when the user adjusts the height of the headrest 10 to suit his or her body conditions (body type) and then adjusts the headrest 10 to a predetermined initial setting.
  • the elastic protrusion 74 elastically caught in one of the plurality of locking grooves 73 moves to the adjacent locking groove 73 and is caught in the locking groove 73 at the point where the initial operating force is released. It has a mechanism to adjust the height.
  • the headrest height adjustment device 70 which operates by the mechanism described above, has a predetermined static friction force to prevent it from falling when the user arbitrarily leans the head once it has been adjusted to suit the user's body shape.
  • the initial operating force (or static friction force) must be set large. There is a need.
  • the moving hole 52 of the installation member 50 which guides the vertical movement of the support member 40 to ensure smooth movement of the support member 40, which is moved in the vertical direction for substantially height adjustment, is a support member ( 40), a certain amount of space must be provided for the front and back sides, but there is a problem in that high frequency noise is generated as the support member 40 is spaced back and forth during the height adjustment process by the user.
  • the frame 30 on which the installation member 50 is installed and the edge member 32 disposed at the front thereof serve as a sound box when noise is generated by the support member 40, thereby causing the noise to spread further.
  • the present invention was developed to solve the above-mentioned technical problem, and is a headrest height adjustment device that not only allows the user to adjust the height without trial and error at the desired position when adjusting the height of the headrest, but also prevents the generation of operating noise.
  • the purpose is to provide a chair including the same.
  • a headrest height adjustment device includes an installation part formed to be recessed forward on the back of the headrest main body, a support member provided at both left and right ends of the installation part, and the headrest main body corresponding to the installation part. It is coupled to the front of both left and right ends of the height-adjustable guide block and the height-adjustable guide block inserted between the back of the and the support member, and is in contact with the back of the headrest main body corresponding to the installation portion, and the initial provided by the user It includes a friction force generating unit that generates friction force corresponding to the reaction force of the operating force.
  • a plurality of locking grooves are formed on the front of the support member to be continuously grooved backward in the vertical direction, and a haptic locking portion that is elastically supported and caught by the plurality of locking grooves is provided on the back of the height adjustment guide block. It can be.
  • the friction force generating unit may be made of a flexible material.
  • the friction force generating portion may be made of a friction material that generates a predetermined friction force between the friction force generating portion and the rear surface of the headrest body corresponding to the installation portion.
  • the friction force generating unit may have a front end protruding from the front side of the height adjustment guide block to the rear surface of the headrest body corresponding to the installation portion to generate the friction force.
  • the haptic locking portion is elastically supported with a predetermined elastic force by an elastic block inserted into a support groove formed on the back of the height adjustment guide block and the elastic block, and a portion of the outer peripheral surface protrudes outside the support groove to support the support. It includes a haptic roller in contact with the locking groove of the member, and the friction force of the friction force generating unit may be set in consideration of the elastic force provided by the elastic block.
  • it may further include a rear cover panel coupled to the rear portion of the headrest main body and having a penetration portion formed so that the space corresponding to the installation portion communicates rearward.
  • left and right inner ends of the penetrating portion may be provided with a separation distance that allows the support member to be hidden from the outside.
  • the separation distance between the upper end of the installation part and the upper end of the support member may be formed to be greater than the vertical length of the pair of protruding ends of the height adjustment guide block.
  • it may further include a guide panel that is coupled to the rear surface of the headrest body corresponding to the installation portion and guides the vertical movement of the height adjustment guide block.
  • the length between the left and right ends of the guide panel may be provided to correspond to the separation distance between the pair of guide protrusion ends.
  • a chair according to an embodiment of the present invention may include the headrest height adjustment device described above.
  • a headrest height adjustment device and a chair including the same can achieve various effects as follows.
  • FIG. 1 is a perspective view showing an example of a headrest height adjustment device according to the prior art
  • Figure 2 is a detailed exploded perspective view of the headrest height adjustment device in the structure of Figure 1;
  • Figure 3 is a front perspective view (a) and a rear perspective view (b) showing a headrest height adjustment device according to an embodiment of the present invention
  • Figure 4 is an exploded perspective view of Figures 3 (a) and (b),
  • Figures 5a and 5b are exploded perspective views of the front and rear parts showing the installation of the headrest height adjustment device on the back of the headrest main body;
  • Figures 6a and 6b are partially cut away perspective views showing the installation sequence of the headrest height adjustment device for the installation part of Figure 5b;
  • Figure 7 is an exploded perspective view showing the installation of the height-adjustable guide block in the structure of Figure 3;
  • Figure 8 is an exploded perspective view showing the installation of the angle-adjustable rotation block in the structure of Figure 3;
  • Figures 9a and 9b are partial and full exploded perspective views for explaining the combination of the height-adjustable guide block and the angle-adjustable rotation block in the configuration of Figure 3;
  • FIGS. 10A and 10B are horizontal and vertical cross-sectional views for explaining the combination of the height-adjustable guide block and the angle-adjustable rotation block in the configuration of FIG. 3,
  • Figure 11 is a front view showing the headrest in the structure of Figure 3;
  • FIGS. 12A and 12B are a cross-sectional view (a) and a cut-away perspective view (b) taken along lines A-A and B-B of FIG. 11.
  • Headrest 111 Headrest body
  • Installation parts 114a, 114b Upper and lower hook holding holes
  • Insertion part 121 Rear cover panel
  • Haptic catch 171 Elastic block
  • Figure 3 is a front perspective view (a) and rear perspective view (b) showing a headrest height adjustment device according to an embodiment of the present invention
  • Figure 4 is an exploded perspective view of Figures 3 (a) and (b). am.
  • the headrest height adjustment device 140 may be coupled to the headrest assembly 110, as shown in FIGS. 3 and 4.
  • the headrest assembly 110 is formed to a size that supports the back of the user's head or neck, and includes the headrest body 111 that constitutes the entire skeleton. It includes a rear cover panel 121 coupled to the back of the headrest main body 111 and a front cushion panel 131 coupled to the front of the headrest main body 111 and directly in contact with the back of the user's head or neck. can do.
  • An installation portion 112 may be provided in the middle of the headrest main body 111, which has a slim rectangular space extending approximately up and down and back and forth.
  • the installation portion 112 may protrude toward the front of the headrest body 111, but may be formed to be concave forward at the rear of the headrest body 111. Additionally, the installation portion 112 may be concavely formed in a rectangular groove shape where the length in the vertical direction is substantially larger than the width in the left and right directions.
  • a headrest height adjustment device 140 may be coupled to such an installation portion 112.
  • the specific coupling of the headrest height adjustment device 140 to the installation portion 112 will be described in more detail later.
  • Support members 117 may be installed on both left and right ends of the installation unit 112 to prevent both ends of the headrest height adjustment device 140 from being separated rearward. More specifically, when the installation part 112 has a square groove shape protruding forward from the rear side of the headrest main body 111, as described above, the support member 117 is the part of the installation part 112. Each is fixed to the headrest main body 111 corresponding to the left and right edge ends, and the opposite width direction ends are provided so as to overlap the inside of the installation portion 112 by a predetermined length, so that the headrest height adjustment device 140 is moved backward. It may get caught.
  • the support member 117 may be set so that the height of the top is lower than the height of the top of the installation part 112 by a predetermined length.
  • the height of the upper end of the support member 117 is set lower than the height of the upper end of the installation part 112, and a gap that is not interfered with by the support member 117 in the front and rear directions is provided therebetween.
  • the support The space between the top of the member 117 and the top of the installation part 112 will be defined as the 'insertion part 119'.
  • the separation distance between the top of the installation portion 112 and the top of the support member 117 is the vertical length of a pair of protrusion ends 141a and 141b corresponding to both left and right ends of the height adjustment guide block 141, which will be described later. It can be formed larger.
  • the headrest height adjustment device 140 is inserted and installed through the insertion portion 119, which is defined as the space between the top of the support member 117 and the top of the installation portion 112.
  • the insertion portion 119 which is defined as the space between the top of the support member 117 and the top of the installation portion 112.
  • the rear portion of the headrest main body 111 corresponding to the insertion portion 119 has a movement limiting hook portion 118 on which the upper ends of both ends of the height adjustment guide block 141, which will be described later, are caught. ) may be provided.
  • the movement limiting hook part 118 has a hook end protruding rearward, so that when the height adjustment guide block 141, which will be described later, is inserted and engaged with a predetermined insertion force through the insertion part 119, the hook end is pressed. It serves to allow insertion and coupling of the height adjustment guide block 141 by forming a space at least between the support member 117 and the front and rear thickness of the height adjustment guide block 141.
  • the movement restriction hook portion 118 is a hook of the movement restriction hook portion 118 that is restored to its original position after the height adjustment guide block 141 is inserted into the installation portion 112 and moved downward a predetermined distance. It serves to prevent arbitrary removal through the insertion portion 119 by engaging with the end.
  • movement limiting hook portion 118 may also serve as a limit stopper that limits the upward movement of the height adjustment guide block 141 once installed on the installation portion 112.
  • the headrest height adjustment device 140 according to an embodiment of the present invention configured as described above can be easily installed in the insertion portion 119 without the need for a separate assembly tool such as a fastener for installation on the headrest 110. It provides the advantage of simple assembly using the movement limiting hook portion 118.
  • the front cushion panel 131 may be arranged to cover the front of the headrest body 111, as shown in FIGS. 3 and 4 .
  • the front cushion panel 131 may have a rear end made of a sturdy plastic material, and the front end may be formed as a cushion containing a sponge material.
  • a fitting groove 132 may be formed on the rear surface of the front cushion panel 131, into which the installation portion 112 protruding forward of the headrest main body 111 is fitted.
  • a rear cover panel 121 may be coupled to the rear portion of the headrest body 111.
  • the rear cover panel 121 may form the rear exterior of the headrest body 111.
  • the rear cover panel 121 is a portion that is caught by the support member 117 of the headrest height adjustment device 140 according to an embodiment of the present invention installed on the installation portion 112 of the headrest main body 111.
  • the rectangular penetrating portion 122 may be formed to be cut so that the remaining portions except for are penetrated and exposed to the rear.
  • the left and right inner ends of the penetrating portion 122 are provided at both left and right ends of the above-described installation portion 112, at least after the rear cover panel 121 is coupled to the rear portion of the headrest main body 111.
  • the support member 117 may be provided to have a separation distance that can be hidden from the outside when observed in the front-back direction (i.e., directly forward).
  • the headrest height adjustment device 140 is installed on the installation portion 112 of the headrest main body 111 from the rear through the penetration portion 122 of the rear cover panel 121. , It can be installed to be movable in the up and down direction along the penetrating part 122 by the operating force transmitted by the user's action to adjust the height.
  • the space corresponding to the installation part 112 is provided to fully communicate to the rear by the penetration part 122 of the rear cover panel 121, so that the installation part 112 acts as a sound box during operation. can be prevented.
  • the rear cover panel 121 may be hooked to the rear part of the headrest main body 111, and the front cushion panel 131 may be connected to the front part of the headrest main body 111 using a plurality of assembly screws 116. Can be screwed together.
  • the headrest body 111 In order to hook the rear cover panel 121 to the headrest body 111, the headrest body 111 has an upper hook hole 114a and a lower hook hole 114b with triangles at three locations. It is provided in the form of a vertex, and an upper hook 124a and a lower hook 124b may be similarly provided in the form of triangular vertices at three locations on the front of the rear cover panel 121.
  • the front cushion panel 131 has a tree snap (tree snap) fastened to the front of the headrest body 111 by the assembly screw 116.
  • Snap fitting holes 136 in which 135) is accommodated and press-fitted are provided at a number of locations, and on the front part of the rear cover panel 121, a screw fastening boss is fastened with an assembly screw 116 penetrating the trip snap 136. (126) may be provided in multiple locations.
  • the plurality of assembly screws 116 pass through the screw through holes (not indicated) formed in the headrest body 111 before coupling the front cushion panel 131 to the headrest body 111, thereby forming the tree snap 135. After being coupled to the front of the headrest body 111, they are respectively fastened to the screw fastening bosses 126 of the rear cover panel 121.
  • the front cushion panel 131 is brought into close contact with the front of the headrest main body 111, and the tree snap 135 is forcefully fitted into the snap fitting hole 136 provided on the back of the front cushion panel 131. In this way, the front cushion panel 131 is simply coupled to the front of the headrest main body 111.
  • the headrest height adjustment device 140 when installing the headrest height adjustment device 140 according to an embodiment of the present invention to the headrest 110, the headrest height adjustment device 140 can be installed without the need for a separate assembly tool such as a fastener, except when installing the tree snap 135 described above. Since the user can easily attach and detach the front cushion panel 131 to the headrest body 111 using an interference fit method, this provides the advantage of improving user convenience.
  • Figures 5A and 5B are exploded perspective views of the front and rear parts showing the installation of the headrest height adjustment device on the back of the headrest body
  • Figures 6A and 6B are the headrest height adjustment device on the installation portion of Figure 5B. This is an exploded perspective view showing the installation sequence.
  • the installation process of the headrest height adjustment device 140 according to an embodiment of the present invention to the installation portion 112 of the headrest main body 111 is briefly described as follows. .
  • the headrest height adjustment device 140 is installed in the installation portion 112, which is a space provided on the back of the headrest main body 111. Although installed, it may be installed in advance before the rear cover panel 121 is coupled to the headrest body 111.
  • the left and right height adjustment guide blocks 141 which will be described later among the configurations of the headrest height adjustment device 140 according to an embodiment of the present invention, are installed.
  • a guide panel 150 may be installed in advance to guide movement in the vertical direction while preventing shaking.
  • guide slots 112h formed to be long in the vertical direction are provided to be recessed forward, and are respectively inserted into a pair of guide slots 112h on the front of the guide panel 150 in the left and right directions.
  • a guide installation rib 150h may be formed to prevent shaking.
  • the length (i.e., width length) between the left and right ends of the guide panel 150 is a pair of guide protrusions 141a and 141b, respectively, protruding forward from the left and right ends of the height-adjustable guide block 141, which will be described later. 9a), it is desirable to provide it corresponding to the separation distance between them.
  • a friction force generating unit 160 which will be described later, is provided on each front surface of the pair of guide protrusions 141a and 141b of the height adjustment guide block 141, and the headrest height adjustment device 140 according to an embodiment of the present invention. ) moves up and down within the installation unit 112, forming a predetermined friction force at the area corresponding to the front of the installation unit 112, and each end forming a pair of guide protrusion ends 141a and 141b.
  • the car surface inner surface
  • the headrest height adjustment device 140 includes a support member ( The height of the upper end of 117) is positioned so that it is inserted through the space between the tops of the installation portion 112, and then, as shown in FIG. 6B, is placed on the back of the headrest body 111 forming the installation portion 112. It can be easily installed with a tight fit.
  • the movement limiting hook part 118 is pressed and the space between it and the support member 117 is formed. It can be moved downward through .
  • Figure 7 is an exploded perspective view showing the installation of the height-adjustable moving block in the configuration of Figure 3
  • Figure 8 is an exploded perspective view showing the installation of the angle-adjustable rotating block in the configuration of Figure 3
  • Figures 9a and 9b are Figure 3 It is a partially and fully exploded perspective view to explain the combination of the height-adjustable guide block and the angle-adjustable rotation block in the configuration
  • Figures 10a and 10b show the combination of the height-adjustable guide block and the angle-adjustable rotation block in the configuration of Figure 3.
  • This is a horizontal cross-sectional view and a vertical cross-sectional view for explanation.
  • a headrest height adjustment device 140 may be coupled to the installation portion 112 of the headrest 110 configured as described above. there is.
  • the headrest height adjustment device 140 is inserted and coupled to the inside of the installation portion 112, as shown in FIGS. 7 and 8, and adjusts the height of the headrest 110.
  • Angle adjustment in which the height-adjustable guide block 141, which is provided to move relative to the vertical direction inside the installation unit 112 when moving up and down, and the height-adjustable guide block 141 are rotatably connected around the left and right horizontal axes. It may include a rotation block 144.
  • the angle-adjustable rotation block 144 includes a hinge insertion end 144-1 for hinge coupling with the height-adjustment guide block 141, and a hinge insertion end 144-1. ) and may include a backrest coupling end (144-2) that mediates coupling to the front end of the backrest part of the chair, not shown.
  • the rear portion of the height-adjustable guide block 141 may be provided with a rotational coupling end 142 having a hinge hole 142h into which the rotational hinge axis 145 of the angle-adjustable rotational block 144, which will be described later, is inserted. .
  • a pair of rotational coupling ends 142 are provided at both left and right ends of the back of the height adjustment guide block 141, excluding the middle portion, to be spaced apart from each other by a predetermined distance (center portion), and a pair of spaced apart rotational ends are provided.
  • the hinge insertion end 144-1 of the angle-adjustable rotation block 144 may be positioned between the coupling ends 142 for hinge coupling.
  • a separation prevention protrusion 143a provided in the form of the body of the flat head bolt 143 is formed to protrude toward the center of the hinge hole, and the rotational hinge axis 145 ) may be provided with a C-ring 146 with a bent tip and an interference protrusion 146a that interferes with the separation prevention protrusion 143a.
  • the flat head bolt 143 provided with the departure prevention protrusion 143 is fastened to be exposed from the front of the height adjustment guide block 141 to the rear hinge hole 142, as shown in FIG. 9b. It could be wealth.
  • the flat head bolt 143 may be fastened to a bolt through hole (142h-b) formed through the height adjustment guide block 141 in the front and rear direction.
  • a ring fixing slit 142h-a into which the interference protrusion 146a of the C-ring 146 is inserted and seated may be formed inside the hinge hole 142h of the rotational coupling end 142.
  • the C-ring 146 is inserted into the outer peripheral surface of the ring intervening portion 145b among the components of the rotational hinge shaft 145, which will be described later, and is positioned in the hinge hole 142h of the rotational coupling end 142 in the left and right directions, respectively.
  • the interference protrusion 146a may be inserted into the ring fixing slit 142h-a provided to be open in the insertion direction.
  • the interference protrusion (146a) of the C-ring (146) inserted into the ring fixing slit (142h-a) is C- Since it is caught in a direction opposite to the insertion direction of the ring 146, arbitrary departure to the outside can be prevented.
  • the C-ring 146 has an interference protrusion 146a fixed to the ring fixing slit 142h-a, so that when the angle of the headrest main body 111 is adjusted by the user, it is attached to the angle adjustment rotation block 144.
  • the rotating hinge axis 145 which maintains a fixed state, it is rotatably coupled in conjunction with the height-adjustable guide block 141.
  • the inner peripheral surface of the C-ring 146 forms a predetermined rotational friction force with the outer peripheral surface of the ring insertion portion 145b of the hinge rotation axis 145, and allows the user to adjust the angle of the headrest main body 111.
  • the height-adjustable guide block 141 is rotated with respect to the angle-adjustable rotation block 144, the rotational motion is permitted, but when the user's manipulation force is removed, it can remain stationary at the corresponding position.
  • the hinge rotation axis 145 is angle-adjusted after its tip is fastened through the outside of each hinge hole 142h of the pair of rotation coupling ends 142, as shown in FIGS. 9A and 9B. It can be fastened to fit the shaft coupling end 144-4 formed inside the fastening hole 144-3 of the hinge insertion end 144-1 of the pivoting block 144.
  • the hinge rotation axis 145 includes a shaft body 145a and a ring intervening portion ( 145b) and a shaft fixing portion 145c, which is the distal end of the shaft body 145a and is fitted with the shaft coupling end 144-4 of the hinge insertion end 144-1.
  • the shaft fixing portion 145c is moved and fixed to the shaft coupling end 144-4 in the left and right insertion direction, but is prevented from rotating in conjunction with the C-ring 146 due to frictional force. It is preferably formed to have an outer surface of a non-circular cross section.
  • the height adjustment guide block 141 allows the user to rotate the hinge rotation axis 145 to the rotation coupling end 142 without a separate tool. It is joined to the open side of the hinge hole 142h, and the C-ring 146 already coupled to the ring intervening portion 145b is prevented from being externally separated through the separation prevention protrusion 143a of the flat head bolt 143.
  • the hinge cap 147 is also designed to be coupled in an interference fit manner, providing the advantage of allowing users to assemble it more easily.
  • the height adjustment guide block 141 is provided with a portion including the left and right ends of both left and right ends forming the installation portion 112 and being spaced a predetermined distance rearward from the front of the installation portion 112. It may be disposed between the support members 117 to prevent it from moving backward.
  • This prevention may be a concept that also includes the meaning of preventing the headrest 110 from moving forward with respect to the height adjustment guide block 141.
  • Figure 11 is a front view showing the headrest in the structure of Figure 3, and Figures 12a and 12b are a cross-sectional view (a) and a cut-away perspective view (b) taken along lines A-A and B-B of Figure 11.
  • a plurality of locking grooves 117a may be formed on the front surface of the support member 117, which are continuously arranged in the vertical direction and are recessed toward the rear.
  • haptic locking portions 170 that are elastically supported in the plurality of locking grooves 117a of the support member 117 may be provided on each rear surface of the left and right ends of the height adjustment guide block 141.
  • the haptic locking portion 170 includes an elastic block 171 inserted into the support groove 148 formed to be recessed forward on the rear surface of both ends of the height adjustment guide block 141, and a support groove ( A portion of the outer peripheral surface protrudes to the outside of 148) and may include a haptic roller 172 that contacts one of the plurality of locking grooves 117a of the support member 117 located at the rear by the elastic force of the elastic block 171. You can.
  • the support member 117 moves in the up and down direction in conjunction with the headrest main body 111.
  • the haptic in a stationary state
  • the haptic roller 172 of the locking portion 170 moves toward the adjacent locking groove 117a in the direction opposite to the direction of the moving support member 117, and moves into the locking groove 117a when the user's initial operating force is released. It is locked so that it can be accommodated.
  • the haptic locking portion 170 is shown and explained as being disposed in a single number at the center of each left and right end of the height adjustment guide block 141.
  • it is not necessarily limited to the number, and it is natural that two or more haptic rollers 172 can be provided in multiple numbers so that they are simultaneously caught in two or more locking grooves 117a in response to the design value of the initial operating force. will be.
  • an increase in the number of haptic locking parts 170 leads to an increase in the number of elastic blocks 171 that elastically support the haptic roller 172, and the increase in the number of elastic blocks 171 increases the initial value added by the user.
  • the headrest height adjustment device 140 includes a pair of guide protrusions corresponding to both ends of the height adjustment guide block 141, as shown in FIG. 12b ( It may further include a friction force generating portion 160 that is coupled to the front of the 141a and 141b and whose front is in contact with the rear of the headrest body 111 corresponding to the installation portion 112.
  • the friction force generating unit 160 is formed to have an approximately ' ⁇ ' shaped cross section and may be made of a flexible material.
  • Flexible material refers to a material whose shape is deformed when a predetermined external force is applied.
  • the friction force generating unit 160 may be made of a friction material that forms a predetermined frictional force with respect to the rear surface of the headrest main body 111 (meaning the rear surface forming the installation unit 112) that is in direct contact. .
  • This friction generating unit 160 may be fitted into the fitting protrusions 149 formed on the front surfaces of both ends of the height adjustment guide block 141.
  • the front end of the friction force generating unit 160 generates at least a predetermined frictional force or more at the front with respect to the back of the headrest main body 111 when inserting and installing the height adjustment guide block 141 into the installation unit 112. It is preferable that it is formed to protrude forward so as to have.
  • the amount of protrusion toward the front of the friction force generating unit 160 generates the predetermined friction force based on the front surface of the pair of guide protrusions 141a and 141b corresponding to both ends of the height adjustment guide block 141. It is desirable to design it to such an extent that
  • the friction force formed between the headrest body 111 by the friction force generator 160 is a static friction force, and the headrest body 111 is moved in the up and down direction by the initial operating force provided by the user through the headrest body 111. It may be a force that continuously acts as a predetermined reaction force on the headrest body 111 when it is moved.
  • the friction force generating portion 160 generates a predetermined reaction force. As it acts, the headrest main body 111 can be stopped at the user's desired height without trial and error even when the initial operating force is set large due to the elastic force of the elastic block 171.
  • the friction force generating unit 160 serves to eliminate the front and rear separation distance of the height adjustment guide block 141 located between the support member 117 and the front surface corresponding to the installation unit 112, thereby adjusting the height. By blocking the front and rear clearance (shaking) of the guide block 141 in advance, high-frequency noise can be prevented from occurring.
  • a chair (not shown) according to an embodiment of the present invention may include a headrest height adjustment device 140 according to an embodiment of the present invention configured as described above.
  • the angle adjustment rotation block 144 is coupled to a frame provided at the top of the backrest, not shown, and the height adjustment guide block 141 with respect to the angle adjustment rotation block 144. ) has already been explained that it is connected so that it can be rotated.
  • the headrest height adjustment device 140 is designed so that the user can easily assemble it without the need for assembly tools such as separate fasteners when hingedly coupling the height adjustment guide block 141 to the angle adjustment rotation block 144. Improving assembly convenience has already been explained.
  • the present invention provides a headrest height adjustment device that allows the user to adjust the height of the headrest at a desired position without trial and error, as well as prevents the generation of operating noise, and a chair including the same.

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Abstract

The present invention relates to a height control apparatus for a headrest and a chair comprising same and, in particular, comprises: an installation portion which is recessed in the rear surface of a headrest body toward the front direction; support members provided at left and right end portions of the installation portion; a height-adjusting guide block which is inserted between the rear surface of the headrest body, which corresponds to the installation portion, and the support members; and frictional force generators which are coupled to the front surfaces of a pair of protrusion ends corresponding to the left and right end portions of the height-adjusting guide block, and come into contact with the rear surface of the headrest body, which corresponds to the installation portion, so as to generate the frictional force corresponding to the reaction against the initial actuating force provided by a user. Thus, there are advantages of improving user convenience and preventing the generation of operating noise.

Description

헤드레스트 높이조절 장치 및 이를 포함하는 의자Headrest height adjustment device and chair including same
본 발명은 헤드레스트 높이조절 장치 및 이를 포함하는 의자(HEIGHT CONTROL APPARATUS FOR HEADREST AND CHAIR INCLUDING THE SAME)에 관한 것으로서, 보다 상세하게는, 헤드레스트의 높이 조절이 용이함은 물론, 사용자가 원하는 위치에 안정적으로 정지시켜 작동 시행착오를 줄일 수 있는 헤드레스트 높이조절 장치 및 이를 포함하는 의자에 관한 것이다.The present invention relates to a headrest height adjustment device and a chair including the same (HEIGHT CONTROL APPARATUS FOR HEADREST AND CHAIR INCLUDING THE SAME). More specifically, the present invention relates to a headrest height adjustment device that not only facilitates the height adjustment but also allows the headrest to be stably positioned in the user's desired position. It relates to a headrest height adjustment device that can reduce operational trial and error by stopping at a low angle, and a chair including the same.
일반적으로 의자의 등받이부의 상측에는 사용자의 머리 또는 목을 받치도록 헤드레스트(HeadRest) 또는 넥레스트(Neck Rest, 이하, '헤드레스트'라 통칭한다)가 결합되어 있다.Generally, a headrest or neck rest (hereinafter collectively referred to as a 'headrest') is coupled to the upper side of the backrest of a chair to support the user's head or neck.
사용자가 의자에 착설할 때의 자세는 업무착석자세와 휴식착석자세로 구분할 수 있는데, 기본적으로 몸통각을 변화시켜 휴식을 취하게 하며, 헤드레스트는 사용자의 머리 또는 목을 지지하여 더욱 편안한 자세를 유지하게 하는 역할을 수행한다.The posture when the user sits on the chair can be divided into a work sitting posture and a resting sitting posture. Basically, the body angle is changed to allow rest, and the headrest supports the user's head or neck to create a more comfortable posture. It plays a role in maintaining
의자용 헤드레스트는 등받이부에 고정되어 있거나, 사용자의 신체에 맞도록 조절하는 높이조절 기능을 가지는 구조로 구비되어 있는 것이 대부분이다.Most headrests for chairs are fixed to the backrest or have a height adjustment function that adjusts them to fit the user's body.
특히, 높이조절 기능은, 착석자의 신체조건 및 착석자세에 따라 헤드레스트의 높낮이를 조절하도록 함으로써 사용자 편의성을 향상시키는 이점을 제공한다.In particular, the height adjustment function provides the advantage of improving user convenience by adjusting the height of the headrest according to the physical condition and sitting posture of the seated person.
대표적인 높이조절 기능을 가진 의자는 공개특허공보 제10-2012-0134232호(2012.12.12.공개)(이하, '종래 기술'이라 한다)에 의하여 개시된다.A chair with a representative height adjustment function is disclosed by Patent Publication No. 10-2012-0134232 (published on December 12, 2012) (hereinafter referred to as 'prior art').
도 1은 종래 기술에 따른 헤드레스트 높이조절 장치의 일 예를 개시한 사시도이고, 도 2는 도 1의 구성 중 헤드레스트 높이조절 장치의 구체적인 분해 사시도이다.Figure 1 is a perspective view showing an example of a headrest height adjustment device according to the prior art, and Figure 2 is a detailed exploded perspective view of the headrest height adjustment device included in the structure of Figure 1.
종래 기술에 따른 헤드레스트 높이조절 장치(70, '종래 기술'의 명세서에서는 '높이조절 부재'로 명명됨)는, 도 1 및 도 2에 도시된 바와 같이, 등받이부(20)와 등받이부(20)의 후측을 지지하도록 구비된 프레임(30) 사이에 구비되고, 지지부재(40)가 이동공(52)이 형성된 설치부재(50)를 매개로 상하 방향으로 이동되는 동작으로 이에 장착된 헤드레스트(10)의 높낮이가 조절된다.The headrest height adjustment device (70, referred to as 'height adjustment member' in the 'prior art' specification) according to the prior art, as shown in Figures 1 and 2, includes a backrest portion 20 and a backrest portion ( It is provided between the frame 30 provided to support the rear side of the 20), and the support member 40 is moved in the up and down direction via the installation member 50 in which the moving hole 52 is formed. The head is mounted thereon. The height of the rest (10) is adjusted.
특히, 종래 기술에 따른 헤드레스트 높이조절 장치(70)는, 걸림홈부재(72), 탄성돌기(74), 수용부재(78) 및 탄성브라켓(76)을 포함하여 이루어진다. 여기서, 걸림홈부재(72)는 지지부재(40)의 전 측에 상하방향으로 다수 개의 걸림홈(73)을 갖도록 돌출 형성되며, 다수 개의 걸림홈(73)에는 지지부재(40)가 상하 방향으로 이동되는 동안 반구 형상의 탄성돌기(74)가 탄성적으로 걸림됨으로써 높이를 제한하는 것이 개시된다.In particular, the headrest height adjustment device 70 according to the prior art includes a locking groove member 72, an elastic protrusion 74, a receiving member 78, and an elastic bracket 76. Here, the locking groove member 72 is protruded to have a plurality of locking grooves 73 in the vertical direction on the front side of the support member 40, and the plurality of locking grooves 73 have the support member 40 in the vertical direction. It is disclosed that the hemispherical elastic protrusion 74 is elastically caught while being moved to limit the height.
여기서, 종래 기술에 따른 헤드레스트 높이조절 장치(70)는, 사용자가 헤드레스트(10)를 자신의 신체 조건(체형)에 맞도록 높낮이를 조절할 경우 헤드레스트(10)를 파지한 다음 소정의 초기 작동력을 부가하면 다수 개의 걸림홈(73) 중 어느 하나에 탄성 걸림된 탄성돌기(74)가 인접하는 걸림홈(73) 측으로 넘어가면서 초기 작동력이 해제되는 지점의 걸림홈(73)에 걸림되는 동작으로 높낮이가 조절되는 메커니즘을 가지고 있다.Here, the headrest height adjustment device 70 according to the prior art holds the headrest 10 when the user adjusts the height of the headrest 10 to suit his or her body conditions (body type) and then adjusts the headrest 10 to a predetermined initial setting. When an operating force is applied, the elastic protrusion 74 elastically caught in one of the plurality of locking grooves 73 moves to the adjacent locking groove 73 and is caught in the locking groove 73 at the point where the initial operating force is released. It has a mechanism to adjust the height.
그러나, 상기와 같은 메커니즘으로 동작되는 종래 기술에 따른 헤드레스트 높이조절 장치(70)는, 일단 사용자의 체형에 맞도록 조정이 된 후에는 사용자가 임의로 머리를 기대었을 때 흘러 내리지 않도록 소정의 정지 마찰력이 필요한 반면, 높낮이 조절을 위해 필요한 사용자의 초기 작동력은 오로지 상술한 탄성돌기(73)를 탄성 지지하는 스프링(75)에 의한 탄성력에 의존하는 점에서, 상기 초기 작동력(또는 정지 마찰력)을 크게 설정할 필요가 있다.However, the headrest height adjustment device 70 according to the prior art, which operates by the mechanism described above, has a predetermined static friction force to prevent it from falling when the user arbitrarily leans the head once it has been adjusted to suit the user's body shape. On the other hand, since the user's initial operating force required for height adjustment depends solely on the elastic force caused by the spring 75 that elastically supports the elastic protrusion 73, the initial operating force (or static friction force) must be set large. There is a need.
이로 인해 사용자가 비교적 크게 설정된 초기 작동력을 가할 경우, 탄성돌기(74)가 한 번에 여러 개의 걸림홈(73)을 넘어가게 되어 사용자에 의한 정확한 높낮이 조절이 어렵고 사용자에 맞도록 높낮이를 조절하기 위해서는 여러 차례의 시행착오를 겪어야 하는 문제점이 있다.As a result, when the user applies a relatively large initial operating force, the elastic protrusion 74 passes over several locking grooves 73 at once, making it difficult to accurately adjust the height by the user. There is a problem that requires many rounds of trial and error.
또한, 실질적으로 높낮이 조절을 위하여 상하 방향으로 이동되는 지지부재(40)의 원활한 움직임을 확보하도록 지지부재(40)의 상하 이동을 안내하는 설치부재(50)의 이동공(52)은 지지부재(40)에 전후면에 대하여 각각 어느 정도의 이격된 공간을 부여하여야 하는데, 사용자에 의한 높낮이 조절 과정 동안 지지부재(40)가 전후로 유격되면서 높은 주파수의 소음이 발생하는 문제점이 있다.In addition, the moving hole 52 of the installation member 50, which guides the vertical movement of the support member 40 to ensure smooth movement of the support member 40, which is moved in the vertical direction for substantially height adjustment, is a support member ( 40), a certain amount of space must be provided for the front and back sides, but there is a problem in that high frequency noise is generated as the support member 40 is spaced back and forth during the height adjustment process by the user.
특히, 설치부재(50)가 설치되는 프레임(30)과 그 전단에 배치된 테두리부재(32)는 지지부재(40)에 의한 소음 발생 시 울림통 역할을 함으로써 소음이 더 크게 퍼지는 문제점이 있다.In particular, the frame 30 on which the installation member 50 is installed and the edge member 32 disposed at the front thereof serve as a sound box when noise is generated by the support member 40, thereby causing the noise to spread further.
본 발명은 상기한 기술적 과제를 해결하기 위하여 안출된 것으로서, 헤드레스트의 높낮이 조절 시 사용자가 원하는 위치에서 시행착오 없이 높이 조절이 가능함은 물론, 작동 소음의 발생을 방지할 수 있는 헤드레스트 높이조절 장치 및 이를 포함하는 의자를 제공하는 것을 그 목적으로 한다.The present invention was developed to solve the above-mentioned technical problem, and is a headrest height adjustment device that not only allows the user to adjust the height without trial and error at the desired position when adjusting the height of the headrest, but also prevents the generation of operating noise. The purpose is to provide a chair including the same.
본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치는, 헤드레스트 본체의 배면에 전방으로 함몰되게 형성된 설치부, 상기 설치부의 좌우 양단부에 구비된 지지부재, 상기 설치부에 해당하는 상기 헤드레스트 본체의 배면과 상기 지지부재 사이에 삽입되는 높이조절 가이드블록 및 상기 높이조절 가이드블록의 좌우 양단부의 전면에 결합되되, 상기 설치부에 해당하는 상기 헤드레스트 본체의 배면에 접촉되어 사용자에 의해 제공되는 초기 작동력의 반력에 해당하는 마찰력을 생성하는 마찰력 생성부를 포함한다.A headrest height adjustment device according to an embodiment of the present invention includes an installation part formed to be recessed forward on the back of the headrest main body, a support member provided at both left and right ends of the installation part, and the headrest main body corresponding to the installation part. It is coupled to the front of both left and right ends of the height-adjustable guide block and the height-adjustable guide block inserted between the back of the and the support member, and is in contact with the back of the headrest main body corresponding to the installation portion, and the initial provided by the user It includes a friction force generating unit that generates friction force corresponding to the reaction force of the operating force.
여기서, 상기 지지부재의 전면에는, 상하 방향으로 연속되게 후방으로 요홈지도록 다수의 걸림홈이 형성되고, 상기 높이조절 가이드블록의 배면에는, 상기 다수의 걸림홈에 탄성 지지되어 걸림되는 햅틱 걸림부가 구비될 수 있다.Here, a plurality of locking grooves are formed on the front of the support member to be continuously grooved backward in the vertical direction, and a haptic locking portion that is elastically supported and caught by the plurality of locking grooves is provided on the back of the height adjustment guide block. It can be.
또한, 상기 마찰력 생성부는, 플렉서블한 재질로 이루어질 수 있다.Additionally, the friction force generating unit may be made of a flexible material.
또한, 상기 마찰력 생성부는, 상기 설치부에 해당하는 상기 헤드레스트 본체의 배면과의 사이에 소정의 마찰력을 생성하는 마찰 재질로 구비될 수 있다.Additionally, the friction force generating portion may be made of a friction material that generates a predetermined friction force between the friction force generating portion and the rear surface of the headrest body corresponding to the installation portion.
또한, 상기 마찰력 생성부는, 그 전단이 상기 높이조절 가이드블록의 전면으로부터 상기 설치부에 해당하는 상기 헤드레스트 본체의 배면에 상기 마찰력을 생성하는 돌출량을 가질 수 있다.In addition, the friction force generating unit may have a front end protruding from the front side of the height adjustment guide block to the rear surface of the headrest body corresponding to the installation portion to generate the friction force.
또한, 상기 햅틱 걸림부는, 상기 높이조절 가이드블록의 배면에 형성된 지지홈에 삽입 설치된 탄성블록 및 상기 탄성블록에 의하여 소정의 탄성력으로 탄성 지지되되, 외주면 일부가 상기 지지홈의 외측으로 돌출되어 상기 지지부재의 걸림홈에 접촉되는 햅틱 롤러를 포함하고, 상기 마찰력 생성부의 상기 마찰력은, 상기 탄성블록이 제공하는 탄성력을 고려하여 설정될 수 있다.In addition, the haptic locking portion is elastically supported with a predetermined elastic force by an elastic block inserted into a support groove formed on the back of the height adjustment guide block and the elastic block, and a portion of the outer peripheral surface protrudes outside the support groove to support the support. It includes a haptic roller in contact with the locking groove of the member, and the friction force of the friction force generating unit may be set in consideration of the elastic force provided by the elastic block.
또한, 상기 헤드레스트 본체의 후방부에 결합되되, 상기 설치부에 해당하는 공간이 후방으로 연통되게 관통부가 형성된 리어 커버 패널을 더 포함할 수 있다.In addition, it may further include a rear cover panel coupled to the rear portion of the headrest main body and having a penetration portion formed so that the space corresponding to the installation portion communicates rearward.
또한, 상기 관통부의 좌우 각 내측단은, 상기 지지부재가 외부로부터 은닉 가능한 이격 거리를 가지도록 구비될 수 있다.Additionally, the left and right inner ends of the penetrating portion may be provided with a separation distance that allows the support member to be hidden from the outside.
또한, 상기 설치부의 상단과 상기 지지부재의 상단 사이의 이격 거리는, 상기 높이조절 가이드블록의 한 쌍의 돌기단의 상하 길이보다 더 크게 형성될 수 있다.In addition, the separation distance between the upper end of the installation part and the upper end of the support member may be formed to be greater than the vertical length of the pair of protruding ends of the height adjustment guide block.
또한, 상기 설치부에 해당하는 상기 헤드레스트 본체의 배면에 결합되어 상기 높이조절 가이드블록의 상하 이동을 가이드하는 가이드 패널을 더 포함할 수 있다.In addition, it may further include a guide panel that is coupled to the rear surface of the headrest body corresponding to the installation portion and guides the vertical movement of the height adjustment guide block.
또한, 상기 가이드 패널의 좌우 양단 사이의 길이는, 상기 한 쌍의 가이드 돌기단 사이의 이격 거리에 대응되게 구비될 수 있다.Additionally, the length between the left and right ends of the guide panel may be provided to correspond to the separation distance between the pair of guide protrusion ends.
본 발명의 일 실시예에 따른 의자는, 상술한 헤드레스트 높이조절 장치를 포함할 수 있다.A chair according to an embodiment of the present invention may include the headrest height adjustment device described above.
본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치 및 이를 포함하는 의자에 따르면 다음과 같은 다양한 효과를 달성할 수 있다.According to an embodiment of the present invention, a headrest height adjustment device and a chair including the same can achieve various effects as follows.
첫째, 헤드레스트의 높낮이 조절을 위해 사용자로부터 제공하는 초기 작동력에 대하여 반력으로 작용하는 마찰력 생성부를 추가함으로써, 사용자가 원하는 위치에 시행착오 없이 헤드레스트를 정지시킬 수 있으므로 사용자 편의성을 향상시킬 수 있다.First, by adding a friction force generator that acts as a reaction force to the initial operating force provided by the user to adjust the height of the headrest, user convenience can be improved because the headrest can be stopped at a desired position without trial and error.
둘째, 높이조절 가이드블록의 전단 및 후단 사이의 이격 공간을 마찰력 생성부를 통해 제거함으로써, 높낮이 조절 시의 고주파 소음의 발생을 방지할 수 있는 효과를 가진다.Second, by eliminating the separation space between the front and rear ends of the height adjustment guide block through the friction force generator, it has the effect of preventing the generation of high-frequency noise when adjusting the height.
도 1은 종래 기술에 따른 헤드레스트 높이조절 장치의 일 예를 개시한 사시도이고,1 is a perspective view showing an example of a headrest height adjustment device according to the prior art;
도 2는 도 1의 구성 중 헤드레스트 높이조절 장치의 구체적인 분해 사시도이며,Figure 2 is a detailed exploded perspective view of the headrest height adjustment device in the structure of Figure 1;
도 3은 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치를 나타낸 전방부 사시도(a) 및 후방부 사시도(b)이고,Figure 3 is a front perspective view (a) and a rear perspective view (b) showing a headrest height adjustment device according to an embodiment of the present invention;
도 4는 도 3의 (a) 및 (b)의 각 분해 사시도이며,Figure 4 is an exploded perspective view of Figures 3 (a) and (b),
도 5a 및 도 5b는 헤드레스트 본체의 배면에 대한 헤드레스트 높이조절 장치의 설치 모습을 나타낸 전방부 및 후방부 분해 사시도이고,Figures 5a and 5b are exploded perspective views of the front and rear parts showing the installation of the headrest height adjustment device on the back of the headrest main body;
도 6a 및 도 6b는 도 5b의 설치부에 대한 헤드레스트 높이조절 장치의 설치 순서를 나타낸 일부 절개 분해 사시도이며,Figures 6a and 6b are partially cut away perspective views showing the installation sequence of the headrest height adjustment device for the installation part of Figure 5b;
도 7은 도 3의 구성 중 높이조절 가이드블록의 설치 모습을 나타낸 분해 사시도이고,Figure 7 is an exploded perspective view showing the installation of the height-adjustable guide block in the structure of Figure 3;
도 8은 도 3의 구성 중 각도조절 회동블록의 설치 모습을 나타낸 분해 사시도이며,Figure 8 is an exploded perspective view showing the installation of the angle-adjustable rotation block in the structure of Figure 3;
도 9a 및 도 9b는 도 3의 구성 중 높이조절 가이드블록과 각도조절 회동블록의 결합 모습을 설명하기 위한 일부 및 전부 분해 사시도이고,Figures 9a and 9b are partial and full exploded perspective views for explaining the combination of the height-adjustable guide block and the angle-adjustable rotation block in the configuration of Figure 3;
도 10a 및 도 10b는 도 3의 구성 중 높이조절 가이드블록과 각도조절 회동블록의 결합 모습을 설명하기 위한 수평 단면도 및 수직 단면도이며,FIGS. 10A and 10B are horizontal and vertical cross-sectional views for explaining the combination of the height-adjustable guide block and the angle-adjustable rotation block in the configuration of FIG. 3,
도 11은 도 3의 구성 중 헤드레스트를 나타낸 정면도이고,Figure 11 is a front view showing the headrest in the structure of Figure 3;
도 12a 및 도 12b는 도 11의 A-A선 및 B-B선을 따라 취한 단면도(a) 및 절개 사시도(b)이다.FIGS. 12A and 12B are a cross-sectional view (a) and a cut-away perspective view (b) taken along lines A-A and B-B of FIG. 11.
<부호의 설명><Explanation of symbols>
110: 헤드레스트 111: 헤드레스트 본체110: Headrest 111: Headrest body
112: 설치부 114a,114b: 상부 및 하부 후크 걸림홀112: Installation parts 114a, 114b: Upper and lower hook holding holes
116: 조립 나사 117: 지지부재116: assembly screw 117: support member
117a: 걸림홈 118: 이동 제한 후크부117a: Locking groove 118: Movement restriction hook portion
119: 삽입부 121: 리어 커버 패널119: Insertion part 121: Rear cover panel
122: 관통부 131: 프론트 쿠션 패널122: Penetrating part 131: Front cushion panel
132: 형합부 136: 나사 관통홀132: Mold portion 136: Screw through hole
150: 가이드 패널 160: 마찰력 생성부150: Guide panel 160: Friction force generation unit
170: 햅틱 걸림부 171: 탄성블록170: Haptic catch 171: Elastic block
172: 햅틱 롤러172: Haptic roller
이하, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치 및 이를 포함하는 의자를 첨부된 도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, a headrest height adjustment device and a chair including the same according to an embodiment of the present invention will be described in detail with reference to the attached drawings.
각 도면의 구성요소들에 참조부호를 부가함에 있어서, 동일한 구성요소들에 대해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 가지도록 하고 있음에 유의해야 한다. 또한, 본 발명의 실시예를 설명함에 있어, 관련된 공지 구성 또는 기능에 대한 구체적인 설명이 본 발명의 실시예에 대한 이해를 방해한다고 판단되는 경우에는 그 상세한 설명은 생략한다.When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.
본 발명의 실시예의 구성요소를 설명하는 데 있어서, 제1, 제2, A, B, (a), (b) 등의 용어를 사용할 수 있다. 이러한 용어는 그 구성요소를 다른 구성요소와 구별하기 위한 것일 뿐, 그 용어에 의해 해당 구성요소의 본질이나 차례 또는 순서 등이 한정되지 않는다. 또한, 다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가진다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥상 가지는 의미와 일치하는 의미를 가진 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. Additionally, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.
도 3은 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치를 나타낸 전방부 사시도(a) 및 후방부 사시도(b)이고, 도 4는 도 3의 (a) 및 (b)의 각 분해 사시도이다.Figure 3 is a front perspective view (a) and rear perspective view (b) showing a headrest height adjustment device according to an embodiment of the present invention, and Figure 4 is an exploded perspective view of Figures 3 (a) and (b). am.
본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)는, 도 3 및 도 4에 참조된 바와 같이, 헤드레스트 조립체(110)에 결합될 수 있다.The headrest height adjustment device 140 according to an embodiment of the present invention may be coupled to the headrest assembly 110, as shown in FIGS. 3 and 4.
보다 상세하게는, 헤드레스트 조립체(110)는, 도 3 및 도 4에 참조된 바와 같이, 사용자의 머리 뒷부분 또는 목 뒷부분을 지지하는 크기로 형성되되, 전체 골격을 구성하는 헤드레스트 본체(111)와, 헤드레스트 본체(111)의 배면에 결합되는 리어 커버 패널(121) 및 헤드레스트 본체(111)의 전면에 결합되고, 사용자의 머리 뒷부분 또는 목 뒷부분에 직접 접하는 프론트 쿠션 패널(131)을 포함할 수 있다.More specifically, the headrest assembly 110, as shown in FIGS. 3 and 4, is formed to a size that supports the back of the user's head or neck, and includes the headrest body 111 that constitutes the entire skeleton. It includes a rear cover panel 121 coupled to the back of the headrest main body 111 and a front cushion panel 131 coupled to the front of the headrest main body 111 and directly in contact with the back of the user's head or neck. can do.
헤드레스트 본체(111)의 중간 부분에는 대략 상하로 길게 전후로 슬림한 직육면체 공간을 가지는 설치부(112)가 마련될 수 있다.An installation portion 112 may be provided in the middle of the headrest main body 111, which has a slim rectangular space extending approximately up and down and back and forth.
설치부(112)는, 헤드레스트 본체(111)의 전방으로 돌출되되, 헤드레스트 본체(111)의 후방에서는 전방으로 오목한 형태로 형성될 수 있다. 또한, 설치부(112)는, 대략 상하 방향의 길이가 좌우 방향의 폭보다 더 큰 4각형의 홈 형상으로 오목하게 형성될 수 있다.The installation portion 112 may protrude toward the front of the headrest body 111, but may be formed to be concave forward at the rear of the headrest body 111. Additionally, the installation portion 112 may be concavely formed in a rectangular groove shape where the length in the vertical direction is substantially larger than the width in the left and right directions.
이와 같은 설치부(112)에는 후술하는 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)가 결합될 수 있다. 헤드레스트 높이조절 장치(140)의 설치부(112)에 대한 구체적인 결합 모습을 뒤에 보다 상세하게 설명하기로 한다.A headrest height adjustment device 140 according to an embodiment of the present invention, which will be described later, may be coupled to such an installation portion 112. The specific coupling of the headrest height adjustment device 140 to the installation portion 112 will be described in more detail later.
설치부(112)의 좌우 양단부에는, 헤드레스트 높이조절 장치(140)의 양단부가 후방으로 이탈되는 것을 방지하기 위한 지지부재(117)가 설치될 수 있다. 보다 상세하게는, 설치부(112)가 상술한 바와 같이, 헤드레스트 본체(111)의 배면 측에서 전방으로 돌출된 4각형의 홈 형상일 경우, 지지부재(117)는 설치부(112)의 좌우 테두리 단부에 해당하는 헤드레스트 본체(111)에 각각 고정되되, 상호 대향되는 폭 방향 단부가 설치부(112)의 내측으로 소정 길이 오버랩되도록 구비됨으로써, 헤드레스트 높이조절 장치(140)가 후방으로 걸림될 수 있다. Support members 117 may be installed on both left and right ends of the installation unit 112 to prevent both ends of the headrest height adjustment device 140 from being separated rearward. More specifically, when the installation part 112 has a square groove shape protruding forward from the rear side of the headrest main body 111, as described above, the support member 117 is the part of the installation part 112. Each is fixed to the headrest main body 111 corresponding to the left and right edge ends, and the opposite width direction ends are provided so as to overlap the inside of the installation portion 112 by a predetermined length, so that the headrest height adjustment device 140 is moved backward. It may get caught.
여기서, 지지부재(117)는, 상단의 높이가 설치부(112)의 상단 높이보다 소정길이 더 낮도록 설정될 수 있다. 지지부재(117)의 상단의 높이가 설치부(112)의 상단의 높이보다 더 낮게 설정되는 바, 그 사이에 전후 방향으로 지지부재(117)에 의하여 간섭되지 않은 틈새가 마련되고, 이하, 지지부재(117)의 상단 및 설치부(112)의 상단 사이의 공간을 '삽입부(119)'로 정의하기로 한다. 그러므로, 설치부(112)의 상단과 지지부재(117)의 상단 사이의 이격 거리는, 후술하는 높이조절 가이드블록(141)의 좌우 양단부에 해당하는 한 쌍의 돌기단(141a,141b)의 상하 길이보다 더 크게 형성될 수 있다.Here, the support member 117 may be set so that the height of the top is lower than the height of the top of the installation part 112 by a predetermined length. The height of the upper end of the support member 117 is set lower than the height of the upper end of the installation part 112, and a gap that is not interfered with by the support member 117 in the front and rear directions is provided therebetween. Hereinafter, the support The space between the top of the member 117 and the top of the installation part 112 will be defined as the 'insertion part 119'. Therefore, the separation distance between the top of the installation portion 112 and the top of the support member 117 is the vertical length of a pair of protrusion ends 141a and 141b corresponding to both left and right ends of the height adjustment guide block 141, which will be described later. It can be formed larger.
이때, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)는, 지지부재(117)의 상단과 설치부(112)의 상단 사이의 공간으로 정의되는 삽입부(119)를 통해 삽입 설치된 후 하방으로 소정 거리 이동될 경우 지지부재(117)에 의하여 그 양단부가 각각 후방으로 걸림되어 외부로의 이탈이 방지될 수 있다.At this time, the headrest height adjustment device 140 according to an embodiment of the present invention is inserted and installed through the insertion portion 119, which is defined as the space between the top of the support member 117 and the top of the installation portion 112. When it is moved backward and downward a predetermined distance, both ends are each caught backward by the support member 117 to prevent it from leaving to the outside.
여기서, 설치부(112)의 배면부로서, 삽입부(119)에 해당하는 헤드레스트 본체(111)의 배면부에는, 후술하는 높이조절 가이드블록(141)의 양단부 상단이 걸림되는 이동 제한 후크부(118)가 구비될 수 있다.Here, as the rear portion of the installation portion 112, the rear portion of the headrest main body 111 corresponding to the insertion portion 119 has a movement limiting hook portion 118 on which the upper ends of both ends of the height adjustment guide block 141, which will be described later, are caught. ) may be provided.
이동 제한 후크부(118)는, 후방으로 후크단이 돌출 형성됨으로써, 삽입부(119)를 통해 후술하는 높이조절 가이드블록(141)을 소정의 삽입력으로 삽입 결합시킬 경우, 후크단이 눌림되어 적어도 지지부재(117)와의 사이에 높이조절 가이드블록(141)의 전후 두께보다 큰 공간을 형성함으로써 높이조절 가이드블록(141)의 삽입 결합을 허용하는 역할을 수행한다.The movement limiting hook part 118 has a hook end protruding rearward, so that when the height adjustment guide block 141, which will be described later, is inserted and engaged with a predetermined insertion force through the insertion part 119, the hook end is pressed. It serves to allow insertion and coupling of the height adjustment guide block 141 by forming a space at least between the support member 117 and the front and rear thickness of the height adjustment guide block 141.
또한, 이동 제한 후크부(118)는, 일단 높이조절 가이드블록(141)이 설치부(112)로 삽입된 후 하방으로 소정 거리 이동한 후에는 원위치로 복원된 이동 제한 후크부(118)의 후크단과와의 걸림 동작에 의해 삽입부(119)를 통한 임의 탈거가 불가능하도록 하는 역할을 수행하는 것이다.In addition, the movement restriction hook portion 118 is a hook of the movement restriction hook portion 118 that is restored to its original position after the height adjustment guide block 141 is inserted into the installation portion 112 and moved downward a predetermined distance. It serves to prevent arbitrary removal through the insertion portion 119 by engaging with the end.
아울러, 이동 제한 후크부(118)는, 일단 설치부(112)에 설치된 높이조절 가이드블록(141)의 상방향 이동을 제한하는 리미트 스토퍼로서의 역할도 수행할 수 있다.In addition, the movement limiting hook portion 118 may also serve as a limit stopper that limits the upward movement of the height adjustment guide block 141 once installed on the installation portion 112.
이와 같은 구성으로 이루어진 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)는, 헤드레스트(110)에 대한 설치를 위하여, 패스너와 같은 별도의 조립 공구가 필요 없이 간편하게 삽입부(119)의 이동 제한 후크부(118)를 이용한 간단한 조립이 가능한 이점을 제공한다.The headrest height adjustment device 140 according to an embodiment of the present invention configured as described above can be easily installed in the insertion portion 119 without the need for a separate assembly tool such as a fastener for installation on the headrest 110. It provides the advantage of simple assembly using the movement limiting hook portion 118.
한편, 프론트 쿠션 패널(131)은, 도 3 및 도 4에 참조된 바와 같이, 헤드레스트 본체(111)의 전방을 덮도록 배치될 수 있다.Meanwhile, the front cushion panel 131 may be arranged to cover the front of the headrest body 111, as shown in FIGS. 3 and 4 .
여기서, 프론트 쿠션 패널(131)은, 후단면이 견고한 플라스틱 재질로 구비되되, 전방에는 스폰지 재질을 포함하는 쿠션으로 형성될 수 있다. 프론트 쿠션 패널(131)의 후방면에는, 헤드레스트 본체(111)의 전방으로 돌출된 설치부(112)가 형합되는 형합홈(132)이 형성될 수 있다.Here, the front cushion panel 131 may have a rear end made of a sturdy plastic material, and the front end may be formed as a cushion containing a sponge material. A fitting groove 132 may be formed on the rear surface of the front cushion panel 131, into which the installation portion 112 protruding forward of the headrest main body 111 is fitted.
한편, 헤드레스트 본체(111)의 후방부에는 리어 커버 패널(121)이 결합될 수 있다. 리어 커버 패널(121)은, 헤드레스트 본체(111)의 후방 외관을 형성할 수 있다.Meanwhile, a rear cover panel 121 may be coupled to the rear portion of the headrest body 111. The rear cover panel 121 may form the rear exterior of the headrest body 111.
아울러, 리어 커버 패널(121)은, 헤드레스트 본체(111)의 설치부(112)에 설치된 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140) 중 지지부재(117)에 걸림되는 부위를 제외한 나머지 부위가 관통되어 후방으로 노출되도록 장방형의 관통부(122)가 절개되게 형성될 수 있다.In addition, the rear cover panel 121 is a portion that is caught by the support member 117 of the headrest height adjustment device 140 according to an embodiment of the present invention installed on the installation portion 112 of the headrest main body 111. The rectangular penetrating portion 122 may be formed to be cut so that the remaining portions except for are penetrated and exposed to the rear.
여기서, 관통부(122)의 좌우 각 내측단은, 적어도 헤드레스트 본체(111)의 후방부에 리어 커버 패널(121)이 결합된 후에는, 상술한 설치부(112)의 좌우 양단부에 구비된 지지 부재(117)가 전후 방향(즉, 직전방)으로 관찰할 때 외부로부터 은닉 가능한 이격 거리를 가지도록 구비될 수 있다.Here, the left and right inner ends of the penetrating portion 122 are provided at both left and right ends of the above-described installation portion 112, at least after the rear cover panel 121 is coupled to the rear portion of the headrest main body 111. The support member 117 may be provided to have a separation distance that can be hidden from the outside when observed in the front-back direction (i.e., directly forward).
본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)는, 리어 커버 패널(121)의 관통부(122)를 통해 후방에서 헤드레스트 본체(111)의 설치부(112)에 설치된 상태에서, 사용자의 높이조절 행위에 의하여 전달되는 조작력에 의해 관통부(122)를 따라 상하 방향으로 이동 가능하게 설치될 수 있다.The headrest height adjustment device 140 according to an embodiment of the present invention is installed on the installation portion 112 of the headrest main body 111 from the rear through the penetration portion 122 of the rear cover panel 121. , It can be installed to be movable in the up and down direction along the penetrating part 122 by the operating force transmitted by the user's action to adjust the height.
이와 같이, 리어 커버 패널(121)의 관통부(122)에 의하여 설치부(112)에 해당하는 공간이 후방으로 완전 연통되게 구비됨으로써, 설치부(112)가 작동 시의 울림통 역할을 하는 것을 사전에 방지할 수 있다.In this way, the space corresponding to the installation part 112 is provided to fully communicate to the rear by the penetration part 122 of the rear cover panel 121, so that the installation part 112 acts as a sound box during operation. can be prevented.
헤드레스트 본체(111)의 후방부에는 리어 커버 패널(121)이 후크 걸림 결합될 수 있고, 헤드레스트 본체(111)의 전방부에는 프론트 쿠션 패널(131)이 다수의 조립 나사(116)를 매개로 나사 결합될 수 있다.The rear cover panel 121 may be hooked to the rear part of the headrest main body 111, and the front cushion panel 131 may be connected to the front part of the headrest main body 111 using a plurality of assembly screws 116. Can be screwed together.
헤드레스트 본체(111)에 대한 리어 커버 패널(121)의 후크 걸림 결합을 위해, 헤드레스트 본체(111)에는, 상부 후크 걸림홀(114a) 및 하부 후크 걸림홀(114b)이 각각 3개소에 삼각형의 꼭지점 형태로 마련되고, 리어 커버 패널(121)의 전면에는 상부 걸림 후크(124a) 및 하부 걸림 후크(124b)가 마찬가지로 각각 3개소에 삼각형의 꼭지점 형태로 마련될 수 있다.In order to hook the rear cover panel 121 to the headrest body 111, the headrest body 111 has an upper hook hole 114a and a lower hook hole 114b with triangles at three locations. It is provided in the form of a vertex, and an upper hook 124a and a lower hook 124b may be similarly provided in the form of triangular vertices at three locations on the front of the rear cover panel 121.
3개의 상부 걸림 후크(124a) 및 하부 걸림 후크(124b)는, 헤드레스트 본체(111)에 형성된 3개의 상부 후크 걸림홀(114a) 및 하부 후크 걸림홀(114b)을 후방에서 전방으로 관통한 후 걸림됨으로써 헤드레스트 본체(111)의 후방부에 리어 커버 패널(121)이 밀착 결합될 수 있다.The three upper hooks (124a) and lower hooks (124b) penetrate the three upper hook hooks (114a) and lower hook hooks (114b) formed in the headrest body 111 from rear to front. By being caught, the rear cover panel 121 may be tightly coupled to the rear portion of the headrest body 111.
한편, 헤드레스트 본체(111)에 대한 프론트 쿠션 패널(131)의 나사 결합을 위해, 프론트 쿠션 패널(131)에는 조립 나사(116)에 의하여 헤드레스트 본체(111)의 전면에 체결되는 트리 스냅(135)이 수용되어 억지끼움되는 스냅 끼움홀(136)이 다수 개소에 마련되고, 리어 커버 패널(121)의 전면부에는 조립 나사(116)가 트립 스냅(136)을 관통하여 체결되는 나사 체결보스(126)가 다수 개소에 마련될 수 있다.Meanwhile, in order to screw the front cushion panel 131 to the headrest body 111, the front cushion panel 131 has a tree snap (tree snap) fastened to the front of the headrest body 111 by the assembly screw 116. Snap fitting holes 136 in which 135) is accommodated and press-fitted are provided at a number of locations, and on the front part of the rear cover panel 121, a screw fastening boss is fastened with an assembly screw 116 penetrating the trip snap 136. (126) may be provided in multiple locations.
다수 개의 조립 나사(116)는, 프론트 쿠션 패널(131)을 헤드레스트 본체(111)에 결합시키기 전 헤드레스트 본체(111)에 형성된 나사 관통홀(도면부호 미표기)을 관통하면서 트리 스냅(135)을 헤드레스트 본체(111)의 전면에 결합시킨 후 리어 커버 패널(121)의 나사 체결보스(126)에 각각 체결된다.The plurality of assembly screws 116 pass through the screw through holes (not indicated) formed in the headrest body 111 before coupling the front cushion panel 131 to the headrest body 111, thereby forming the tree snap 135. After being coupled to the front of the headrest body 111, they are respectively fastened to the screw fastening bosses 126 of the rear cover panel 121.
그 후, 헤드레스트 본체(111)의 전방으로 프론트 쿠션 패널(131)을 밀착시켜, 트리 스냅(135)이 프론트 쿠션 패널(131)의 배면부에 구비된 스냅 끼움홀(136)에 억지끼움되는 동작으로, 헤드레스트 본체(111)의 전방에 프론트 쿠션 패널(131)을 간단하게 결합시키게 된다.Thereafter, the front cushion panel 131 is brought into close contact with the front of the headrest main body 111, and the tree snap 135 is forcefully fitted into the snap fitting hole 136 provided on the back of the front cushion panel 131. In this way, the front cushion panel 131 is simply coupled to the front of the headrest main body 111.
여기서, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)의 헤드레스트(110)에 대한 설치 시 상술한 트리 스냅(135)의 설치 시를 제외하고는 패스너와 같은 별도의 조립 공구 없이도 사용자가 간편하게 헤드레스트 본체(111)에 대하여 프론트 쿠션 패널(131)을 억지끼움 방식으로 결합 및 착탈시킬 수 있으므로, 사용자 편의성을 향상시키는 이점을 제공한다.Here, when installing the headrest height adjustment device 140 according to an embodiment of the present invention to the headrest 110, the headrest height adjustment device 140 can be installed without the need for a separate assembly tool such as a fastener, except when installing the tree snap 135 described above. Since the user can easily attach and detach the front cushion panel 131 to the headrest body 111 using an interference fit method, this provides the advantage of improving user convenience.
도 5a 및 도 5b는 헤드레스트 본체의 배면에 대한 헤드레스트 높이조절 장치의 설치 모습을 나타낸 전방부 및 후방부 분해 사시도이고, 도 6a 및 도 6b는 도 5b의 설치부에 대한 헤드레스트 높이조절 장치의 설치 순서를 나타낸 일부 절개 분해 사시도이다.Figures 5A and 5B are exploded perspective views of the front and rear parts showing the installation of the headrest height adjustment device on the back of the headrest body, and Figures 6A and 6B are the headrest height adjustment device on the installation portion of Figure 5B. This is an exploded perspective view showing the installation sequence.
도 5a 내지 도 6b를 참조하여, 헤드레스트 본체(111)의 설치부(112)에 대한 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)의 설치 과정을 간략하게 설명하면 다음과 같다.With reference to FIGS. 5A to 6B, the installation process of the headrest height adjustment device 140 according to an embodiment of the present invention to the installation portion 112 of the headrest main body 111 is briefly described as follows. .
먼저, 도 5a 및 도 5b에 참조된 바와 같이, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)는, 헤드레스트 본체(111)의 배면에 구비된 공간인 설치부(112)에 설치되되, 리어 커버 패널(121)이 헤드레스트 본체(111)에 결합되기 전 미리 설치될 수 있다.First, as referred to in FIGS. 5A and 5B, the headrest height adjustment device 140 according to an embodiment of the present invention is installed in the installation portion 112, which is a space provided on the back of the headrest main body 111. Although installed, it may be installed in advance before the rear cover panel 121 is coupled to the headrest body 111.
여기서, 설치부(112)에 해당하는 헤드레스트 본체(111)의 배면부에는, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)의 구성 중 후술하는 높이조절 가이드블록(141)의 좌우 흔들림을 방지하면서 상하 방향으로의 이동을 가이드하기 위한 가이드 패널(150)이 미리 설치될 수 있다.Here, on the rear portion of the headrest main body 111 corresponding to the installation portion 112, the left and right height adjustment guide blocks 141, which will be described later among the configurations of the headrest height adjustment device 140 according to an embodiment of the present invention, are installed. A guide panel 150 may be installed in advance to guide movement in the vertical direction while preventing shaking.
설치부(112)의 좌우 양측에는, 상하 방향으로 길게 형성된 가이드 슬롯(112h)이 전방으로 함몰되게 구비되고, 가이드 패널(150)의 전면에는 한 쌍의 가이드 슬롯(112h)에 각각 삽입되어 좌우 방향으로의 흔들림을 방지하는 가이드 설치 리브(150h)가 형성될 수 있다.On both left and right sides of the installation portion 112, guide slots 112h formed to be long in the vertical direction are provided to be recessed forward, and are respectively inserted into a pair of guide slots 112h on the front of the guide panel 150 in the left and right directions. A guide installation rib 150h may be formed to prevent shaking.
가이드 패널(150)의 좌우 양단 사이의 길이(즉, 폭의 길이)는, 후술하는 높이조절 가이드블록(141)의 좌우 양단부에서 각각 전방으로 돌출된 한 쌍의 가이드 돌기단(141a,141b, 도 9a 참조) 사이의 이격 거리와 대응되게 구비됨이 바람직하다.The length (i.e., width length) between the left and right ends of the guide panel 150 is a pair of guide protrusions 141a and 141b, respectively, protruding forward from the left and right ends of the height-adjustable guide block 141, which will be described later. 9a), it is desirable to provide it corresponding to the separation distance between them.
높이조절 가이드블록(141)의 한 쌍의 가이드 돌기단(141a,141b)의 각 전면에는 후술하는 마찰력 생성부(160)가 구비되어, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)가 설치부(112) 내에서 상하 이동 시 설치부(112)의 전면에 해당하는 부위에 소정의 마찰력을 형성하면서 이동됨과 아울러, 한 쌍의 가이드 돌기단(141a,141b)을 형성하는 각 단차면(내측면)이 가이드 패널(150)의 좌우 양단을 따라 좌우 흔들림이 없이 가이드를 받으면서 안정적으로 상하 이동되는 것이다.A friction force generating unit 160, which will be described later, is provided on each front surface of the pair of guide protrusions 141a and 141b of the height adjustment guide block 141, and the headrest height adjustment device 140 according to an embodiment of the present invention. ) moves up and down within the installation unit 112, forming a predetermined friction force at the area corresponding to the front of the installation unit 112, and each end forming a pair of guide protrusion ends 141a and 141b. The car surface (inner surface) is stably moved up and down while receiving guidance along both left and right ends of the guide panel 150 without any left or right shaking.
한편, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)는, 도 6a에 참조된 바와 같이, 리어 커버 패널(121)이 헤드레스트 본체(111)로부터 분리된 상태에서, 지지부재(117)의 상단의 높이가 설치부(112)의 상단 사이의 공간을 통해 삽입되도록 위치된 다음, 도 6b에 참조된 바와 같이, 설치부(112)를 형성하는 헤드레스트 본체(111)의 배면에 밀착되는 동작으로 간편하게 설치될 수 있다.Meanwhile, the headrest height adjustment device 140 according to an embodiment of the present invention includes a support member ( The height of the upper end of 117) is positioned so that it is inserted through the space between the tops of the installation portion 112, and then, as shown in FIG. 6B, is placed on the back of the headrest body 111 forming the installation portion 112. It can be easily installed with a tight fit.
다음으로, 도면으로 도시하지 않았으나, 높이조절 가이드블록(141)이 설치부(112)에 밀착된 상태에서 하방으로 이동시키면, 이동 제한 후크부(118)가 눌림되면서 지지 부재(117)와의 사이 공간을 통해 하방으로 이동될 수 있다.Next, although not shown in the drawing, when the height adjustment guide block 141 is moved downward while in close contact with the installation part 112, the movement limiting hook part 118 is pressed and the space between it and the support member 117 is formed. It can be moved downward through .
도 7은 도 3의 구성 중 높이조절 무빙블록의 설치 모습을 나타낸 분해 사시도이고, 도 8은 도 3의 구성 중 각도조절 회동블록의 설치 모습을 나타낸 분해 사시도이며, 도 9a 및 도 9b는 도 3의 구성 중 높이조절 가이드블록과 각도조절 회동블록의 결합 모습을 설명하기 위한 일부 및 전부 분해 사시도이고, 도 10a 및 도 10b는 도 3의 구성 중 높이조절 가이드블록과 각도조절 회동블록의 결합 모습을 설명하기 위한 수평 단면도 및 수직 단면도이다.Figure 7 is an exploded perspective view showing the installation of the height-adjustable moving block in the configuration of Figure 3, Figure 8 is an exploded perspective view showing the installation of the angle-adjustable rotating block in the configuration of Figure 3, and Figures 9a and 9b are Figure 3 It is a partially and fully exploded perspective view to explain the combination of the height-adjustable guide block and the angle-adjustable rotation block in the configuration, and Figures 10a and 10b show the combination of the height-adjustable guide block and the angle-adjustable rotation block in the configuration of Figure 3. This is a horizontal cross-sectional view and a vertical cross-sectional view for explanation.
상기와 같은 구성으로 이루어진 헤드레스트(110)의 설치부(112)에는, 도 7 내지 도 10b에 참조된 바와 같이, 본 발명의 일 실시예에 다른 헤드레스트 높이조절 장치(140)가 결합될 수 있다.As shown in FIGS. 7 to 10B, a headrest height adjustment device 140 according to an embodiment of the present invention may be coupled to the installation portion 112 of the headrest 110 configured as described above. there is.
본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)는, 도 7 및 도 8에 참조된 바와 같이, 설치부(112)의 내측에 삽입되어 결합되고, 헤드레스트(110)의 높이 조절을 위한 상하 이동 시 설치부(112)의 내부에서 상하 방향으로 상대 이동되도록 구비된 높이조절 가이드블록(141)과, 높이조절 가이드블록(141)이 좌우 수평축을 중심으로 회동 가능하게 연결되는 각도조절 회동블록(144)을 포함할 수 있다.The headrest height adjustment device 140 according to an embodiment of the present invention is inserted and coupled to the inside of the installation portion 112, as shown in FIGS. 7 and 8, and adjusts the height of the headrest 110. Angle adjustment in which the height-adjustable guide block 141, which is provided to move relative to the vertical direction inside the installation unit 112 when moving up and down, and the height-adjustable guide block 141 are rotatably connected around the left and right horizontal axes. It may include a rotation block 144.
각도조절 회동블록(144)은, 도 9a 및 도 9b에 참조된 바와 같이, 높이조절 가이드블록(141)과의 힌지 결합을 위한 힌지삽입단(144-1)과, 힌지삽입단(144-1)과 일체로 형성되고, 미도시의 의자의 구성 중 등받이부의 선단부에 대한 결합을 매개하는 등받이결합단(144-2)을 포함할 수 있다.As shown in FIGS. 9A and 9B, the angle-adjustable rotation block 144 includes a hinge insertion end 144-1 for hinge coupling with the height-adjustment guide block 141, and a hinge insertion end 144-1. ) and may include a backrest coupling end (144-2) that mediates coupling to the front end of the backrest part of the chair, not shown.
여기서, 높이조절 가이드블록(141)의 배면부에는, 후술하는 각도조절 회동블록(144)의 회동힌지 축(145)이 삽입되는 힌지홀(142h)이 형성된 회동결합단(142)이 구비될 수 있다.Here, the rear portion of the height-adjustable guide block 141 may be provided with a rotational coupling end 142 having a hinge hole 142h into which the rotational hinge axis 145 of the angle-adjustable rotational block 144, which will be described later, is inserted. .
보다 상세하게는, 높이조절 가이드블록(141)의 배면 중 가운데 부분을 제외한 좌우 양단부에는 한 쌍의 회동결합단(142)이 상호 소정 거리(가운데 부분) 이격되게 구비되고, 이격된 한 쌍의 회동결합단(142) 사이에는 각도조절 회동블록(144)의 힌지삽입단(144-1)이 힌지 결합을 위하여 위치될 수 있다.More specifically, a pair of rotational coupling ends 142 are provided at both left and right ends of the back of the height adjustment guide block 141, excluding the middle portion, to be spaced apart from each other by a predetermined distance (center portion), and a pair of spaced apart rotational ends are provided. The hinge insertion end 144-1 of the angle-adjustable rotation block 144 may be positioned between the coupling ends 142 for hinge coupling.
아울러, 회동결합단(142)의 힌지홀(142h) 내부에는 평머리 볼트(143)의 몸통부 형태로 구비된 이탈 방지 돌기(143a)가 힌지홀 중심측으로 돌출되게 형성되고, 회동힌지 축(145)에는 선단이 절곡되게 구비되어 이탈 방지 돌기(143a)와 간섭되는 간섭돌기(146a)가 형성된 C-링(146)이 개재될 수 있다.In addition, inside the hinge hole 142h of the rotational coupling end 142, a separation prevention protrusion 143a provided in the form of the body of the flat head bolt 143 is formed to protrude toward the center of the hinge hole, and the rotational hinge axis 145 ) may be provided with a C-ring 146 with a bent tip and an interference protrusion 146a that interferes with the separation prevention protrusion 143a.
여기서, 이탈 방지 돌기(143)가 구비된 평머리 볼트(143)는, 도 9b에 참조된 바와 같이, 높이조절 가이드블록(141)의 전면에서 후방의 힌지홀(142) 측으로 노출되게 체결된 몸통부일 수 있다. 평머리 볼트(143)는, 높이조절 가이드블록(141)의 전후 방향으로 관통 형성된 볼트 관통홀(142h-b)에 체결될 수 있다.Here, the flat head bolt 143 provided with the departure prevention protrusion 143 is fastened to be exposed from the front of the height adjustment guide block 141 to the rear hinge hole 142, as shown in FIG. 9b. It could be wealth. The flat head bolt 143 may be fastened to a bolt through hole (142h-b) formed through the height adjustment guide block 141 in the front and rear direction.
한편, 회동결합단(142)의 힌지홀(142h) 내부에는, C-링(146)의 간섭돌기(146a)가 삽입 및 안착되는 링 고정슬릿(142h-a)이 형성될 수 있다.Meanwhile, a ring fixing slit 142h-a into which the interference protrusion 146a of the C-ring 146 is inserted and seated may be formed inside the hinge hole 142h of the rotational coupling end 142.
C-링(146)은, 후술하는 회동힌지 축(145)의 구성 중 링 개재부(145b)의 외주면에 끼움 개재되고, 회동결합단(142)의 힌지홀(142h)에 각각 좌측과 우측 방향으로 개구되게 구비된 링 고정슬릿(142h-a)에 간섭돌기(146a)가 삽입 방향으로 삽입될 수 있다.The C-ring 146 is inserted into the outer peripheral surface of the ring intervening portion 145b among the components of the rotational hinge shaft 145, which will be described later, and is positioned in the hinge hole 142h of the rotational coupling end 142 in the left and right directions, respectively. The interference protrusion 146a may be inserted into the ring fixing slit 142h-a provided to be open in the insertion direction.
이때, 링 고정슬릿(142h-a)에 삽입된 C-링(146)의 간섭돌기(146a)는, 평머리 볼트(143)의 몸통부 형태로 구비된 이탈 방지 돌기(143a)에 의하여 C-링(146)의 삽입 방향과는 반대 방향으로 걸림되는 바, 외부로의 임의 이탈이 방지될 수 있다.At this time, the interference protrusion (146a) of the C-ring (146) inserted into the ring fixing slit (142h-a) is C- Since it is caught in a direction opposite to the insertion direction of the ring 146, arbitrary departure to the outside can be prevented.
아울러, C-링(146)은, 간섭돌기(146a)가 링 고정슬릿(142h-a)에 고정되는 바, 사용자에 의한 헤드레스트 본체(111)의 각도 조절 시 각도조절 회동블록(144)에 대하여 고정된 상태를 유지하는 회동힌지 축(145)과는 달리 높이조절 가이드블록(141)과 연동하여 회전 가능하게 결합되는 것이다.In addition, the C-ring 146 has an interference protrusion 146a fixed to the ring fixing slit 142h-a, so that when the angle of the headrest main body 111 is adjusted by the user, it is attached to the angle adjustment rotation block 144. Unlike the rotating hinge axis 145, which maintains a fixed state, it is rotatably coupled in conjunction with the height-adjustable guide block 141.
여기서, C-링(146)의 내주면은, 힌지회동축(145)의 링 개재부(145b)의 외주면과 소정의 회전 마찰력을 형성하면서, 사용자가 헤드레스트 본체(111)의 각도를 조절하기 위하여 각도조절 회동블록(144)에 대해 높이조절 가이드블록(141)을 회동시킬 경우에는 그 회전 동작을 허용하되, 사용자의 조작력이 제거되면 해당 위치에서 정지된 상태를 유지할 수 있다.Here, the inner peripheral surface of the C-ring 146 forms a predetermined rotational friction force with the outer peripheral surface of the ring insertion portion 145b of the hinge rotation axis 145, and allows the user to adjust the angle of the headrest main body 111. When the height-adjustable guide block 141 is rotated with respect to the angle-adjustable rotation block 144, the rotational motion is permitted, but when the user's manipulation force is removed, it can remain stationary at the corresponding position.
아울러, 힌지회동축(145)은 그 선단부가, 도 9a 및 도 9b에 참조된 바와 같이, 한 쌍의 회동결합단(142)의 각 힌지홀(142h)의 외측에서 관통 체결된 후, 각도조절 회동블록(144) 중 힌지삽입단(144-1)의 체결홀(144-3) 내부에 형성된 축 결합단(144-4)에 형합되도록 체결될 수 있다.In addition, the hinge rotation axis 145 is angle-adjusted after its tip is fastened through the outside of each hinge hole 142h of the pair of rotation coupling ends 142, as shown in FIGS. 9A and 9B. It can be fastened to fit the shaft coupling end 144-4 formed inside the fastening hole 144-3 of the hinge insertion end 144-1 of the pivoting block 144.
보다 상세하게는, 힌지회동축(145)은, 축 바디(145a)와, 축 바디(145a)의 외측 단부에 구비되고 C-링(146)이 개재되도록 원형 단면의 외주면을 가지는 링 개재부(145b)와, 축 바디(145a)의 선단부로써 힌지삽입단(144-1)의 축 결합단(144-4)에 형합되는 축 고정부(145c)를 포함할 수 있다.More specifically, the hinge rotation axis 145 includes a shaft body 145a and a ring intervening portion ( 145b) and a shaft fixing portion 145c, which is the distal end of the shaft body 145a and is fitted with the shaft coupling end 144-4 of the hinge insertion end 144-1.
여기서, 축 고정부(145c)는, 축 결합단(144-4)에는 좌우 방향의 삽입 방향으로는 이동되어 형합 고정되되, C-링(146)과의 마찰력에 의하여 연동하여 회전되는 것이 방지되도록 비원형 단면의 외측면을 가지도록 형성됨이 바람직하다.Here, the shaft fixing portion 145c is moved and fixed to the shaft coupling end 144-4 in the left and right insertion direction, but is prevented from rotating in conjunction with the C-ring 146 due to frictional force. It is preferably formed to have an outer surface of a non-circular cross section.
이와 같은 구성으로 이루어진 각도조절 회동블록(144)의 회동힌지 축(145)이 높이조절 가이드블록(141)의 배면부에 구비된 회동결합단(142)의 힌지홀(142h)에 삽입되면, 힌지 캡(147)을 이용하여 회동결합단(142)의 개구된 힌지홀(142h)을 외부로부터 차폐시킬 수 있다.When the pivoting hinge axis 145 of the angle-adjustable pivoting block 144 configured as described above is inserted into the hinge hole 142h of the pivoting coupling end 142 provided on the rear portion of the height-adjusting guide block 141, the hinge cap Using (147), the opened hinge hole (142h) of the rotational coupling end (142) can be shielded from the outside.
이와 같이, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)에 있어서, 높이조절 가이드블록(141)은, 사용자가 별도의 공구 없이도 힌지회동축(145)을 회동결합단(142)의 힌지홀(142h) 중 개구된 일측으로 결합시키되, 이미 링 개재부(145b)에 결합된 C-링(146)을 평머리 볼트(143)의 이탈 방지 돌기(143a)를 통해 외부 이탈을 방지함은 물론, 힌지 캡(147) 또한 억지끼움 방식으로 결합시킬 수 있도록 설계되는 바, 사용자가 보다 손쉽게 조립할 수 있는 이점을 제공한다.As such, in the headrest height adjustment device 140 according to an embodiment of the present invention, the height adjustment guide block 141 allows the user to rotate the hinge rotation axis 145 to the rotation coupling end 142 without a separate tool. It is joined to the open side of the hinge hole 142h, and the C-ring 146 already coupled to the ring intervening portion 145b is prevented from being externally separated through the separation prevention protrusion 143a of the flat head bolt 143. In addition, the hinge cap 147 is also designed to be coupled in an interference fit manner, providing the advantage of allowing users to assemble it more easily.
여기서, 높이조절 가이드블록(141)은, 좌우 양단부 중 좌측단과 우측단을 포함하는 일부가 설치부(112)를 형성하는 전면과, 설치부(112)의 전면에 대하여 후방으로 소정거리 이격되게 구비된 지지부재(117) 사이에 배치되어 후방으로의 이탈이 방지되도록 구비될 수 있다.Here, the height adjustment guide block 141 is provided with a portion including the left and right ends of both left and right ends forming the installation portion 112 and being spaced a predetermined distance rearward from the front of the installation portion 112. It may be disposed between the support members 117 to prevent it from moving backward.
다만, 높이조절 가이드블록(141)은, 각도조절 회동블록(144)을 매개로 미도시의 등받이부를 구성하는 프레임(미도시)에 고정된 구성이므로, 지지부재(117)에 의해 후방으로의 이탈이 방지된다는 의미는 헤드레스트(110)가 높이조절 가이드블록(141)에 대하여 전방으로 이탈되는 것을 방지하는 의미도 포함하는 개념일 수 있다.However, since the height-adjustable guide block 141 is fixed to the frame (not shown) constituting the backrest part (not shown) through the angle-adjustable pivot block 144, it is separated to the rear by the support member 117. This prevention may be a concept that also includes the meaning of preventing the headrest 110 from moving forward with respect to the height adjustment guide block 141.
도 11은 도 3의 구성 중 헤드레스트를 나타낸 정면도이고, 도 12a 및 도 12b는 도 11의 A-A선 및 B-B선을 따라 취한 단면도(a) 및 절개 사시도(b)이다.Figure 11 is a front view showing the headrest in the structure of Figure 3, and Figures 12a and 12b are a cross-sectional view (a) and a cut-away perspective view (b) taken along lines A-A and B-B of Figure 11.
도 11 내지 도 12b에 참조된 바와 같이, 지지부재(117)의 전면에는 상하 방향으로 연속되게 배열되되 후방으로 요홈지게 다수의 걸림홈(117a)이 형성될 수 있다.As shown in FIGS. 11 to 12B, a plurality of locking grooves 117a may be formed on the front surface of the support member 117, which are continuously arranged in the vertical direction and are recessed toward the rear.
아울러, 높이조절 가이드블록(141)의 좌우 양단부의 각 배면부에는, 지지부재(117)의 다수의 걸림홈(117a)에 탄성 지지되도록 걸림되는 햅틱 걸림부(170)가 구비될 수 있다.In addition, haptic locking portions 170 that are elastically supported in the plurality of locking grooves 117a of the support member 117 may be provided on each rear surface of the left and right ends of the height adjustment guide block 141.
햅틱 걸림부(170)는, 도 12a에 참조된 바와 같이, 높이조절 가이드블록(141)의 양단부 배면에 전방으로 함몰되게 형성된 지지홈(148)에 삽입 설치된 탄성블록(171)과, 지지홈(148)의 외측으로 외주면 일부가 돌출되어 탄성블록(171)의 탄성력에 의해 후방에 위치된 지지부재(117)의 다수의 걸림홈(117a) 중 어느 하나에 접촉되는 햅틱 롤러(172)를 포함할 수 있다.As shown in FIG. 12A, the haptic locking portion 170 includes an elastic block 171 inserted into the support groove 148 formed to be recessed forward on the rear surface of both ends of the height adjustment guide block 141, and a support groove ( A portion of the outer peripheral surface protrudes to the outside of 148) and may include a haptic roller 172 that contacts one of the plurality of locking grooves 117a of the support member 117 located at the rear by the elastic force of the elastic block 171. You can.
사용자가 자신의 체형에 맞도록 헤드레스트(110)를 잡고 상하 방향으로 이동시키면, 지지부재(117)가 헤드레스트 본체(111)와 연동하여 상하 방향으로 이동되게 되고, 이때, 정지 상태에 있는 햅틱 걸림부(170)의 햅틱 롤러(172)가 이동되는 지지부재(117)의 방향과 반대 방향의 인접 걸림홈(117a) 측으로 타고 넘어가면서 사용자의 초기 작동력이 해제될 때의 걸림홈(117a)에 수용되도록 걸림 안착된다.When the user holds the headrest 110 and moves it up and down to suit his or her body shape, the support member 117 moves in the up and down direction in conjunction with the headrest main body 111. At this time, the haptic in a stationary state The haptic roller 172 of the locking portion 170 moves toward the adjacent locking groove 117a in the direction opposite to the direction of the moving support member 117, and moves into the locking groove 117a when the user's initial operating force is released. It is locked so that it can be accommodated.
본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)에 있어서, 햅틱 걸림부(170)는, 높이조절 가이드블록(141)의 좌우 양단부의 각 중앙부에 단수개로 배치된 것으로 도시 및 설명하고 있으나, 반드시 이의 개수에 한정되는 것은 아니고, 초기 작동력의 설계값에 대응하여 2개 이상의 햅틱 롤러(172)가 2개 이상의 걸림홈(117a)에 동시에 걸림되도록 다수 개로 구비되는 것도 가능함은 당연하다고 할 것이다.In the headrest height adjustment device 140 according to an embodiment of the present invention, the haptic locking portion 170 is shown and explained as being disposed in a single number at the center of each left and right end of the height adjustment guide block 141. However, it is not necessarily limited to the number, and it is natural that two or more haptic rollers 172 can be provided in multiple numbers so that they are simultaneously caught in two or more locking grooves 117a in response to the design value of the initial operating force. will be.
여기서, 햅틱 걸림부(170)의 개수의 증가는 햅틱 롤러(172)를 탄성 지지하는 탄성블록(171)의 개수의 증가로 이어지고, 탄성블록(171)의 개수의 증가는 사용자에 의하여 부가되는 초기 작동력의 설계값이 그 만큼 증가하는 것을 의미하는 바, 초기 작동력과는 반대로 작용하도록 고안된 후술하는 마찰력 생성부(160)의 정지 마찰력의 설계값에 영향을 미칠 수 있다.Here, an increase in the number of haptic locking parts 170 leads to an increase in the number of elastic blocks 171 that elastically support the haptic roller 172, and the increase in the number of elastic blocks 171 increases the initial value added by the user. This means that the design value of the operating force increases accordingly, which may affect the design value of the static friction force of the friction force generator 160, which is designed to act opposite to the initial operating force, to be described later.
보다 상세하게는, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)는, 도 12b에 참조된 바와 같이, 높이조절 가이드블록(141)의 양단부에 해당하는 한 쌍의 가이드 돌기단(141a,141b)의 전면에 결합되고, 전면이 설치부(112)에 해당하는 헤드레스트 본체(111)의 배면에 접촉되는 마찰력 생성부(160)를 더 포함할 수 있다.More specifically, the headrest height adjustment device 140 according to an embodiment of the present invention includes a pair of guide protrusions corresponding to both ends of the height adjustment guide block 141, as shown in FIG. 12b ( It may further include a friction force generating portion 160 that is coupled to the front of the 141a and 141b and whose front is in contact with the rear of the headrest body 111 corresponding to the installation portion 112.
여기서, 마찰력 생성부(160)는, 대략 'ㄷ'자 형상의 단면을 가지도록 형성된 것으로서, 플렉서블한 재질로 이루어질 수 있다. 플렉서블한 재질이라 함은, 소정의 외력이 제공되면 형상이 변형되는 정도의 소재를 의미한다.Here, the friction force generating unit 160 is formed to have an approximately 'ㄷ' shaped cross section and may be made of a flexible material. Flexible material refers to a material whose shape is deformed when a predetermined external force is applied.
한편, 마찰력 생성부(160)는, 직접 접촉되는 헤드레스트 본체(111)의 배면(설치부(112)를 형성하는 배면을 의미함)에 대하여 소정의 마찰력을 형성하는 마찰 재질로 구비될 수 있다.Meanwhile, the friction force generating unit 160 may be made of a friction material that forms a predetermined frictional force with respect to the rear surface of the headrest main body 111 (meaning the rear surface forming the installation unit 112) that is in direct contact. .
이와 같은 마찰력 생성부(160)는, 높이조절 가이드블록(141)의 양단부 전면에 형성된 끼움 돌기단(149)에 끼움 결합될 수 있다.This friction generating unit 160 may be fitted into the fitting protrusions 149 formed on the front surfaces of both ends of the height adjustment guide block 141.
또한, 마찰력 생성부(160)의 전단은, 높이조절 가이드블록(141)을 설치부(112)의 내측으로 삽입 설치할 때, 적어도 전면이 헤드레스트 본체(111)의 배면에 대하여 소정의 마찰력 이상을 가지도록 전방으로 돌출되게 형성됨이 바람직하다. 여기서, 마찰력 생성부(160)의 전방으로의 돌출량은, 높이조절 가이드블록(141)의 양단부에 해당하는 한 쌍의 가이드 돌기단(141a,141b)의 전면을 기준으로 상기 소정의 마찰력을 생성하는 정도로 설계됨이 바람직하다.In addition, the front end of the friction force generating unit 160 generates at least a predetermined frictional force or more at the front with respect to the back of the headrest main body 111 when inserting and installing the height adjustment guide block 141 into the installation unit 112. It is preferable that it is formed to protrude forward so as to have. Here, the amount of protrusion toward the front of the friction force generating unit 160 generates the predetermined friction force based on the front surface of the pair of guide protrusions 141a and 141b corresponding to both ends of the height adjustment guide block 141. It is desirable to design it to such an extent that
마찰력 생성부(160)에 의하여 헤드레스트 본체(111)와의 사이에 형성되는 마찰력은 정지 마찰력으로써, 사용자가 헤드레스트 본체(111)를 통해 제공하는 초기 작동력에 의해 헤드레스트 본체(111)가 상하 방향으로 이동될 때 지속적으로 헤드레스트 본체(111)에 소정의 반력으로써 작용하는 힘일 수 있다.The friction force formed between the headrest body 111 by the friction force generator 160 is a static friction force, and the headrest body 111 is moved in the up and down direction by the initial operating force provided by the user through the headrest body 111. It may be a force that continuously acts as a predetermined reaction force on the headrest body 111 when it is moved.
그러므로, 사용자가 초기 작동력을 제공하여 햅틱 걸림부(170)의 햅틱 롤러(172)가 지지부재(117)의 걸림홈(117a)을 타고 넘어가는 순간부터 마찰력 생성부(160)가 소정의 반력으로 작용함에 따라, 탄성블록(171)의 탄성력에 의해 초기 작동력이 크게 설정된 경우에도 사용자가 원하는 높이에 시행착오 없이 헤드레스트 본체(111)를 정지시킬 수 있게 된다.Therefore, from the moment the user provides the initial operating force and the haptic roller 172 of the haptic locking portion 170 passes over the locking groove 117a of the support member 117, the friction force generating portion 160 generates a predetermined reaction force. As it acts, the headrest main body 111 can be stopped at the user's desired height without trial and error even when the initial operating force is set large due to the elastic force of the elastic block 171.
또한, 마찰력 생성부(160)는, 지지부재(117)와 설치부(112)에 해당하는 전면 사이에 위치된 높이조절 가이드블록(141)의 전후 이격거리를 삭제하는 역할을 함에 따라, 높이조절 가이드블록(141)의 전후 유격(흔들림)을 사전에 차단함으로써 고주파의 소음이 발생하는 것을 방지할 수 있다.In addition, the friction force generating unit 160 serves to eliminate the front and rear separation distance of the height adjustment guide block 141 located between the support member 117 and the front surface corresponding to the installation unit 112, thereby adjusting the height. By blocking the front and rear clearance (shaking) of the guide block 141 in advance, high-frequency noise can be prevented from occurring.
한편, 본 발명의 일 실시예에 따른 의자(미도시)는, 상기와 같이 구성되는 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치(140)를 포함할 수 있다.Meanwhile, a chair (not shown) according to an embodiment of the present invention may include a headrest height adjustment device 140 according to an embodiment of the present invention configured as described above.
여기서, 헤드레스트 높이조절 장치(140)는, 미도시의 등받이부의 상단에 구비된 프레임에 상기 각도조절 회동블록(144)이 결합되고, 각도조절 회동블록(144)에 대하여 높이조절 가이드블록(141)이 회동 가능하게 연결됨은 이미 설명하였다. 아울러, 헤드레스트 높이조절 장치(140)는, 높이조절 가이드블록(141)을 각도조절 회동블록(144)에 대하여 힌지 결합시킬 때, 별도의 패스너와 같은 조립 도구 없이도 사용자가 간편하게 조립 가능하도록 설계되어 조립 편의성을 향상시킴은 이미 설명하였다.Here, in the headrest height adjustment device 140, the angle adjustment rotation block 144 is coupled to a frame provided at the top of the backrest, not shown, and the height adjustment guide block 141 with respect to the angle adjustment rotation block 144. ) has already been explained that it is connected so that it can be rotated. In addition, the headrest height adjustment device 140 is designed so that the user can easily assemble it without the need for assembly tools such as separate fasteners when hingedly coupling the height adjustment guide block 141 to the angle adjustment rotation block 144. Improving assembly convenience has already been explained.
이상, 본 발명의 일 실시예에 따른 헤드레스트 높이조절 장치 및 이를 포함하는 의자를 첨부된 도면을 참조하여 상세하게 설명하였다. 그러나, 본 발명의 실시예가 반드시 상술한 일 실시예에 의하여 한정되는 것은 아니고, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의한 다양한 변형 및 균등한 범위에서의 실시가 가능함은 당연하다고 할 것이다. 그러므로, 본 발명의 진정한 권리범위는 후술하는 청구범위에 의해 정해진다고 할 것이다.Above, a headrest height adjustment device and a chair including the same according to an embodiment of the present invention have been described in detail with reference to the attached drawings. However, the embodiments of the present invention are not necessarily limited to the above-described embodiment, and it is natural that various modifications and equivalent implementations can be made by those skilled in the art. will be. Therefore, the true scope of rights of the present invention will be determined by the claims described later.
본 발명은, 헤드레스트의 높낮이 조절 시 사용자가 원하는 위치에서 시행착오 없이 높이 조절이 가능함은 물론, 작동 소음의 발생을 방지할 수 있는 헤드레스트 높이조절 장치 및 이를 포함하는 의자를 제공한다.The present invention provides a headrest height adjustment device that allows the user to adjust the height of the headrest at a desired position without trial and error, as well as prevents the generation of operating noise, and a chair including the same.

Claims (12)

  1. 헤드레스트 본체의 배면에 전방으로 함몰되게 형성된 설치부;An installation portion formed to be recessed forward on the back of the headrest body;
    상기 설치부의 좌우 양단부에 구비된 지지부재;Support members provided on both left and right ends of the installation part;
    상기 설치부에 해당하는 상기 헤드레스트 본체의 배면과 상기 지지부재 사이에 삽입되는 높이조절 가이드블록; 및A height-adjusting guide block inserted between the support member and the back of the headrest body corresponding to the installation portion; and
    상기 높이조절 가이드블록의 좌우 양단부에 해당하는 한 쌍의 돌기단의 전면에 결합되되, 상기 설치부에 해당하는 상기 헤드레스트 본체의 배면에 접촉되어 사용자에 의해 제공되는 초기 작동력의 반력에 해당하는 마찰력을 생성하는 마찰력 생성부; 를 포함하는, 헤드레스트 높이조절 장치.A friction force that is coupled to the front of a pair of protrusions corresponding to both left and right ends of the height adjustment guide block, and that contacts the back of the headrest main body corresponding to the installation portion and corresponds to the reaction force of the initial operating force provided by the user. A friction force generating unit that generates; A headrest height adjustment device including a.
  2. 청구항 1에 있어서,In claim 1,
    상기 지지부재의 전면에는, 상하 방향으로 연속되게 후방으로 요홈지도록 다수의 걸림홈이 형성되고,On the front surface of the support member, a plurality of locking grooves are formed to be continuously recessed backward in the vertical direction,
    상기 높이조절 가이드블록의 배면에는, 상기 다수의 걸림홈에 탄성 지지되어 걸림되는 햅틱 걸림부가 구비된, 헤드레스트 높이조절 장치.A headrest height adjustment device, wherein a haptic locking portion is provided on the back of the height adjustment guide block and is elastically supported and caught in the plurality of locking grooves.
  3. 청구항 1에 있어서,In claim 1,
    상기 마찰력 생성부는, 플렉서블한 재질로 이루어진, 헤드레스트 높이조절 장치.The friction force generating unit is a headrest height adjustment device made of a flexible material.
  4. 청구항 1에 있어서,In claim 1,
    상기 마찰력 생성부는, 상기 설치부에 해당하는 상기 헤드레스트 본체의 배면과의 사이에 소정의 마찰력을 생성하는 마찰 재질로 구비된, 헤드레스트 높이조절 장치.The headrest height adjustment device is provided with a friction material that generates a predetermined frictional force between the friction force generating portion and the rear surface of the headrest main body corresponding to the installation portion.
  5. 청구항 1에 있어서,In claim 1,
    상기 마찰력 생성부는, 그 전단이 상기 높이조절 가이드블록의 전면으로부터 상기 설치부에 해당하는 상기 헤드레스트 본체의 배면에 상기 마찰력을 생성하는 돌출량을 가진, 헤드레스트 높이조절 장치.The friction force generating unit is a headrest height adjustment device, the front end of which has a protruding amount that generates the friction force from the front of the height adjustment guide block to the back of the headrest main body corresponding to the installation portion.
  6. 청구항 2에 있어서,In claim 2,
    상기 햅틱 걸림부는,The haptic locking part is,
    상기 높이조절 가이드블록의 배면에 형성된 지지홈에 삽입 설치된 탄성블록; 및An elastic block inserted and installed into a support groove formed on the back of the height adjustment guide block; and
    상기 탄성블록에 의하여 소정의 탄성력으로 탄성 지지되되, 외주면 일부가 상기 지지홈의 외측으로 돌출되어 상기 지지부재의 걸림홈에 접촉되는 햅틱 롤러; 를 포함하고,a haptic roller that is elastically supported by the elastic block with a predetermined elastic force, and has a portion of its outer circumferential surface protruding outside the support groove and contacting the locking groove of the support member; Including,
    상기 마찰력 생성부의 상기 마찰력은, 상기 탄성블록이 제공하는 탄성력을 고려하여 설정되는, 헤드레스트 높이조절 장치.The headrest height adjustment device wherein the friction force of the friction force generator is set in consideration of the elastic force provided by the elastic block.
  7. 청구항 1에 있어서,In claim 1,
    상기 헤드레스트 본체의 후방부에 결합되되, 상기 설치부에 해당하는 공간이 후방으로 연통되게 관통부가 형성된 리어 커버 패널; 을 더 포함하는, 헤드레스트 높이조절 장치.A rear cover panel coupled to the rear part of the headrest main body and having a penetration part so that the space corresponding to the installation part communicates rearward; A headrest height adjustment device further comprising a.
  8. 청구항 7에 있어서,In claim 7,
    상기 관통부의 좌우 각 내측단은, 상기 지지부재가 외부로부터 은닉 가능한 이격 거리를 가지도록 구비된, 헤드레스트 높이조절 장치.A headrest height adjustment device wherein each left and right inner end of the penetrating portion is provided with a separation distance that allows the support member to be hidden from the outside.
  9. 청구항 1에 있어서,In claim 1,
    상기 설치부의 상단과 상기 지지부재의 상단 사이의 이격 거리는, 상기 높이조절 가이드블록의 한 쌍의 돌기단의 상하 길이보다 더 크게 형성된, 헤드레스트 높이조절 장치.The separation distance between the top of the installation portion and the top of the support member is formed to be larger than the vertical length of the pair of protruding ends of the height adjustment guide block.
  10. 청구항 1에 있어서,In claim 1,
    상기 설치부에 해당하는 상기 헤드레스트 본체의 배면에 결합되어 상기 높이조절 가이드블록의 상하 이동을 가이드하는 가이드 패널; 을 더 포함하는, 헤드레스트 높이조절 장치.A guide panel coupled to the rear surface of the headrest body corresponding to the installation portion and guiding the vertical movement of the height adjustment guide block; A headrest height adjustment device further comprising a.
  11. 청구항 10에 있어서,In claim 10,
    상기 가이드 패널의 좌우 양단 사이의 길이는, 상기 한 쌍의 가이드 돌기단 사이의 이격 거리에 대응되게 구비된, 헤드레스트 높이조절 장치.A headrest height adjustment device in which the length between the left and right ends of the guide panel is provided to correspond to the separation distance between the pair of guide protrusions.
  12. 청구항 1 내지 청구항 11 중 어느 하나의 헤드레스트 높이조절 장치를 포함하는, 의자.A chair comprising the headrest height adjustment device of any one of claims 1 to 11.
PCT/KR2023/009077 2022-07-12 2023-06-29 Height control apparatus for headrest and chair comprising same WO2024014750A1 (en)

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KR10-2022-0085830 2022-07-12
KR1020220085830A KR20240008687A (en) 2022-07-12 2022-07-12 Height control apparatus for head-rest and chair including the same

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7240966B2 (en) * 2002-09-05 2007-07-10 A-Dec, Inc. Headrest support and adjustment mechanism
KR20090042890A (en) * 2009-04-13 2009-05-04 임상수 High control device of headrest for chair
CN201899153U (en) * 2010-11-18 2011-07-20 傅建华 Seat headrest lifting device
KR101103560B1 (en) * 2009-09-10 2012-01-11 (주)제일씨텍 Headrest apparatus capable of adjusting angle
KR102053835B1 (en) * 2018-02-23 2019-12-09 이준구 Sliding headrest for office chair

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101330119B1 (en) 2011-06-01 2013-11-15 주식회사 코아스 Angle and height control device for head rest of chair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7240966B2 (en) * 2002-09-05 2007-07-10 A-Dec, Inc. Headrest support and adjustment mechanism
KR20090042890A (en) * 2009-04-13 2009-05-04 임상수 High control device of headrest for chair
KR101103560B1 (en) * 2009-09-10 2012-01-11 (주)제일씨텍 Headrest apparatus capable of adjusting angle
CN201899153U (en) * 2010-11-18 2011-07-20 傅建华 Seat headrest lifting device
KR102053835B1 (en) * 2018-02-23 2019-12-09 이준구 Sliding headrest for office chair

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