WO2023207090A1 - Headrest mechanism capable of being adjusted front and back and up and down - Google Patents
Headrest mechanism capable of being adjusted front and back and up and down Download PDFInfo
- Publication number
- WO2023207090A1 WO2023207090A1 PCT/CN2022/135748 CN2022135748W WO2023207090A1 WO 2023207090 A1 WO2023207090 A1 WO 2023207090A1 CN 2022135748 W CN2022135748 W CN 2022135748W WO 2023207090 A1 WO2023207090 A1 WO 2023207090A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- headrest
- groove
- rotating shaft
- base
- Prior art date
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 239000013013 elastic material Substances 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
Classifications
-
- 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
-
- 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 mechanism, in particular to a headrest mechanism that can be adjusted forward and backward in height.
- Most of the existing office chairs have a headrest mechanism on the top of the chair back frame to provide support for the user's head or neck.
- an adjustment function is provided on the headrest mechanism. to adjust the position of the headrest.
- the patent application with publication number CN209883542U discloses an office chair with an adjustable headrest height, which includes a chassis structure, a backrest structure, and a headrest structure.
- the chassis structure is fixedly connected to the lower end of the backrest structure, and the headrest structure is arranged on the backrest structure.
- the upper end; the headrest structure includes a headrest main body and a height adjustment mechanism; the height adjustment mechanism includes a headrest connecting rod and a headrest connecting part.
- the upper end of the headrest connecting rod is connected to the headrest main body, and the lower end of the headrest connecting rod is connected to the headrest.
- the headrest connection part is arranged on the back of the backrest structure; a tooth part is provided on one side of the headrest connecting rod, and the tooth part is distributed along the length direction of the headrest connecting rod; the headrest connection part includes a gear part, and the gear part is connected to the backrest structure. Teeth mesh.
- the patent application with publication number CN213640255U discloses an office chair headrest adjustment device, which includes a headrest, a headrest connector, a headrest and backrest connection sleeve, a backrest moving part, and a backrest tube.
- the headrest is inserted into the headrest.
- the upper end of the pillow connector, the headrest connector is connected to the headrest back connection sleeve, the headrest back connection sleeve is sleeved in the middle of the backrest moving piece, the backrest moving piece is sleeved on the backrest tube, and the backrest tube
- the upper end contains telescopic buckles on the left and right sides, and the top of the backrest tube is connected to the backrest frame of the office chair body through a stop.
- the office chair headrest adjusting device can adjust the height of the headrest by moving the backrest moving part up and down, and adjust the state of the headrest by changing the tightness of the hexagonal screw on the headrest backrest connection sleeve.
- the above two headrest mechanisms can only adjust the height of the headrest to cope with users of different heights or users with different needs for support parts (head, neck). However, they cannot adjust the front and rear positions of the headrest and cannot adjust the depth of support. Make adjustments.
- the technical problem to be solved by the present invention is to provide a headrest mechanism that can be adjusted in both height and front and rear dimensions, thereby expanding the adaptability.
- the present invention is achieved through the following technical solutions.
- a headrest mechanism that can be adjusted forward and backward in height, including a connecting frame arranged on the top of the chair back frame, and a headrest arranged on the connecting frame;
- the connecting frame includes a base frame fixed on the top of the chair back frame, and a base frame hinged on the base frame.
- the headrest includes a headrest frame and a support frame connecting the top and bottom of the headrest frame;
- the support frame has an adjustment groove extending along its length direction and penetrating the left and right sides of the support frame,
- the flip frame is provided with a rotating shaft extending in the left and right directions and inserted in the adjusting slot; the rotating shaft can be rotated and adjusted around its central axis, and the rotating shaft can be slid and adjusted relative to the support frame along the length direction of the adjusting slot.
- the groove wall of the adjustment groove is provided with a plurality of positioning holes arranged at intervals up and down, and the rotating shaft is provided with positioning parts; or the groove wall of the adjustment groove is provided with a plurality of up and down intervals.
- the positioning member is arranged, and the rotating shaft is provided with a positioning hole; the positioning hole and the positioning member are snap-fitted.
- the groove wall of the adjustment groove is provided with a guide structure extending along its length direction, and the rotating shaft is provided with a matching structure; the guide structure and the matching structure are slidingly connected.
- the rotating shaft has two contact planes, which are respectively attached to the two groove walls of the adjustment groove; the positioning holes, positioning parts, and matching structures are placed on the contact planes.
- the support frame includes a support plate and a cover plate connecting the top and bottom of the headrest frame; the support plate has a groove, and the bottom of the groove forms a groove wall of the adjustment groove; the cover plate It is fixedly connected to the support plate through fasteners, and its surface facing the support plate forms another groove wall of the adjustment groove.
- the front part of the flip frame has two bifurcated structures spaced left and right, and the left and right ends of the rotating shaft are respectively rotatably connected to the ends of the two bifurcated structures; the ends of the rotating shaft,
- the ends of the bifurcated structure respectively have a first rotation adjustment rack and a second rotation adjustment rack arranged annularly around the central axis of the rotation shaft.
- the first rotation adjustment rack and the second rotation adjustment rack mesh with each other and at least one of them is made of elastic material. .
- the end of the rotating shaft is provided with a first limiting groove
- the end of the bifurcated structure is provided with a first limiting structure
- the end of the rotating shaft is provided with a first limiting structure
- a first limiting groove is provided at the end of the bifurcated structure; the first limiting structure is limited in the first limiting groove to limit the rotation range of the rotating shaft around its central axis.
- a first base and a second base are respectively provided on the left and right sides of the top of the base frame, and a fixed shaft is connected between the first base and the second base;
- the flip frame has The casing structure is rotated and sleeved on the fixed shaft;
- the inner end surface of the first base is provided with a rotation adjustment gear, and the corresponding end surface of the casing structure has an annular arrangement of rotation adjustment tooth slots.
- the rotation adjustment gear and the rotation adjustment gear are arranged in an annular manner.
- the adjusting tooth slots mesh with each other and at least one of them is made of elastic material.
- a second limiting groove is provided on the inner end surface of the second base, and a second limiting structure is provided on the end surface corresponding to the casing structure; or, the second limiting groove is provided on the inner end surface of the second base.
- a second limiting structure is provided on the end surface, and a second limiting groove is provided on the corresponding end surface of the casing structure; the second limiting structure is limited in the second limiting groove to limit the front and rear movement of the flip frame. Rotation range.
- the rotation adjustment gear is sleeved on the fixed shaft and the two are threadedly matched; the inner end surface of the first base is provided with a receiving groove for partially engaging the rotation adjustment gear; One end of the fixed shaft passes through the second base and is threadedly connected with a screw cap, which is attached to the outer end surface of the second base.
- the present invention can adjust the height position of the headrest through the sliding adjustment of the rotating shaft along the adjustment groove, and can adjust the front and rear position of the headrest through the forward and backward rotational adjustment of the flip frame and the rotational adjustment of the rotating shaft around its central axis, thereby realizing the headrest. Regulatory function in two dimensions.
- Figure 1 is a side view of the headrest mechanism
- Figure 2 is a cross-sectional view of the headrest and rotating shaft
- Figure 3 is a schematic diagram of the disassembly of the headrest and rotating shaft
- Figure 4 is the second disassembly diagram of the headrest and shaft
- Figure 5 is a schematic structural diagram of the rotating shaft
- Figure 6 is a schematic structural diagram of the flip frame
- Figure 7 is a schematic diagram 2 of the structure of the flip frame
- Figure 8 is a schematic structural diagram of the base frame
- Figure 9 is the second structural diagram of the base frame.
- the connecting frame 1 is arranged on the top of the chair back frame 3, and the headrest 2 is arranged on the connecting frame 1. .
- the connecting frame 1 includes a base frame 11 and a flip frame 12.
- the middle and lower part of the base frame 11 has a claw structure 115.
- the claw structure 115 is buckled on the top beam of the chair back frame 3, so that the connecting frame 1 Fixed connection with the top of the chair back frame 3.
- the rear end of the flip frame 12 is hinged to the top of the base frame 11 so that the flip frame 12 can be rotated and adjusted forward and backward.
- the flip frame 12 vertically extends upward from the rear end, and then bends forward to extend to its front end.
- the headrest 2 includes a headrest frame 21 and a support frame 22.
- a pillow surface (not shown in the figure) is provided in the headrest frame 21. The edge of the pillow surface is fixed on the inner edge of the headrest frame 21 for support. The user’s head and neck.
- the headrest frame 21 is gradually bent forward from the middle to the left and right sides, so that the two sides of the headrest can wrap around both sides of the head and neck.
- the support frame 22 has a linear structure, and its top end and bottom end are respectively connected to the middle position of the top and bottom of the headrest frame 21, and avoids two sides of the headrest.
- the support frame 22 has an adjustment slot 221 extending along its length direction and penetrating the left and right sides of the support frame 22 .
- the flip frame 12 is provided with a rotating shaft 121 that extends in the left and right direction and is inserted into the adjusting slot 221 .
- the rotating shaft 121 It can be rotated and adjusted around its central axis, and the rotating shaft 121 can be slid and adjusted relative to the support frame 22 along the length direction of the adjustment groove 221 .
- the user can adjust the height of the headrest 2 by sliding the headrest frame 21 up and down so that the rotating shaft 121 slides and adjusts relative to the support frame 22 along the length direction of the adjustment groove 221 .
- the user adjusts the flip frame 12 by rotating it forward and backward to change the front and rear position of the headrest 2, and then rotates the adjustment shaft 121 around the central axis to adjust the orientation of the headrest 2, thereby adjusting the headrest 2 front and back.
- double adjustment of height and front and rear it can be suitable for the needs of different heights, different support parts, and different support depths.
- the groove wall of the adjustment groove 221 is provided with a plurality of positioning holes 2211 arranged at intervals up and down.
- the rotating shaft 121 is provided with positioning parts 1211.
- the positioning holes 2211 and the positioning parts 1211 engage in a snap fit.
- the positioning member 1211 is configured as a spherical structure formed on the surface of the rotating shaft 121
- the positioning hole 2211 is configured as a concave spherical surface that matches the shape of the positioning member 1211 .
- the positioning member 1211 can be configured as an elastic structure. When the rotating shaft 121 slides along the adjustment groove 221, the positioning member 1211 is extruded and compressed and comes out of the current positioning hole 2211. After the adjustment is completed, the positioning member 1211 is inserted into the corresponding positioning hole 2211.
- An elastic member such as a return spring, can also be provided between the positioning member 1211 and the rotating shaft 121.
- the elastic member When the rotating shaft 121 slides along the adjustment groove 221, the elastic member is compressed so that the positioning member 1211 comes out of the current positioning hole 2211. After the adjustment is completed, the elastic member The elastic force makes the positioning member 1211 snap into the corresponding positioning hole 2211.
- positioning holes can also be provided on the rotating shaft 121, and a plurality of positioning members spaced up and down can be provided on the groove wall of the adjustment groove 221. The effect is the same, but from a cost perspective, the above solution is still the optimal solution.
- a groove extending along the length direction of the groove wall of the adjustment groove 221 is provided.
- the guide structure 2212 is provided with a matching structure 1212 on the rotating shaft 121, and the guide structure 2212 and the matching structure 1212 are slidingly connected. More specifically, the guide structure 2212 is formed on the groove wall and extends along the length direction of the adjustment groove 221, and the matching structure 1212 is formed on the rotating shaft 121 and is adapted to the shape of the concave slide. Matching plug structure or insert structure.
- the guide structure 2212 can be provided on one of the groove walls, or can be provided on both groove walls at the same time.
- the rotating shaft 121 has two contact planes 121a and 121b, which are respectively attached to the two groove walls of the adjusting slot 221, so that the part of the rotating shaft 121 inserted in the adjusting slot 221 has a flat structure.
- the contact area between the rotating shaft 121 and the two groove walls can be increased, thereby improving the mutual support stability of the two; on the other hand, the width of the adjustment groove 221 can be reduced, making the overall structure of the support frame 22 more compact and saving space. Avoid interference with both sides of the headrest.
- the positioning hole 2211 or the positioning member 1211 and the matching structure 1212 are placed on the contact plane.
- the support frame 22 includes a support plate 22-1 and a cover plate 22-2, wherein the top and bottom ends of the support plate 22-1 are respectively connected to the top and bottom of the headrest frame 21, and the support plate 22-1 has a concave surface.
- the bottom of the groove forms a groove wall of the adjustment groove 221.
- the cover plate 22-2 is fixedly connected to the support plate 22-1 through fasteners, and its surface facing the support plate 22-1 forms an adjustment groove.
- the support frame 22 becomes a detachable structure through the support plate 22-1 and the cover plate 22-2, which can facilitate the split packaging after production by the manufacturer, and is also more convenient to assemble. In addition, it is assembled through fasteners.
- the clamping strength of the adjusting groove 221 on the rotating shaft 121 can be adjusted, and the user can freely adjust the tightness of the sliding support frame 22 accordingly.
- the front part of the flip frame 12 has two bifurcated structures 122 spaced left and right.
- the two bifurcated structures 122 are left and right symmetrical, and the left and right ends of the rotating shaft 121 are respectively connected by rotation. at the ends of the two bifurcated structures 122 .
- the end of the rotating shaft 121 and the end of the bifurcated structure 122 respectively have a first rotation adjustment rack h1 and a second rotation adjustment rack h2 arranged annularly around the central axis of the rotation shaft 121.
- the rack h1 and the second rotation adjustment rack h2 mesh with each other, and at least one of the first rotation adjustment rack h1 and the second rotation adjustment rack h2 is made of elastic material.
- the first rotational adjustment rack h1 and the second rotational adjustment rack h2 rotate relative to each other, allowing for more precise adjustment.
- the end of the rotating shaft 121 is provided with a first limiting groove h3.
- the first limiting groove h3 is sector-shaped and is surrounded by the first rotation adjustment rack h1.
- the end of the bifurcated structure 122 is provided with a first limiting structure h4.
- the first limiting structure h4 is a strip structure and is limited in the first limiting groove h3.
- the rotating shaft 121 rotates around its central axis
- the first limiting structure h4 is The first limiting structure h4 moves in the first limiting groove h3.
- the rotating shaft 121 cannot continue to rotate, thereby limiting the rotation of the rotating shaft 121 around its central axis.
- the range of rotation prevents the user from over-adjusting the rotation.
- a first base 111 and a second base 112 are respectively provided on the left and right sides of the top of the base frame 11.
- the first base 111 and the second base 112 are formed by the base.
- the top of the frame 11 is formed by protruding upward.
- a fixed shaft 113 is connected between the first base 111 and the second base 112.
- the rear end of the flip frame 12 has a sleeve structure 123, and the sleeve structure 123 is rotatably sleeved on the fixed shaft 113.
- the inner end surface of the first base 111 is provided with a rotation adjustment gear j1, and the corresponding end surface of the casing structure 123, that is, the end surface of the first base 111 facing the first base 111 has an annular arrangement of rotation adjustment gear slots j2.
- the adjustment gear j1 and the rotation adjustment tooth slot j2 mesh with each other, and at least one of them is made of elastic material, so that a more precise rotation adjustment of the flip frame 12 can be achieved.
- a second limiting groove j3 is provided on the inner end surface of the second base 112.
- the second limiting groove j3 is in a fan-shaped shape.
- a second limiting structure j4 is provided on the corresponding end surface of the casing structure 123.
- the two limiting structures j4 are in the form of a plug-in structure inserted in the second limiting slot j3 and are limited in the second limiting slot j3.
- the flip frame 12 is rotated back and forth so that the second limiting structure j4 is against the second limiting slot j3. When the two sides of the limiting groove j3 are located, the flip frame 12 cannot continue to rotate, thereby limiting the forward and backward rotation range of the flip frame 12.
- the rotation adjustment gear j1 is sleeved on the fixed shaft 113 and the two are threadedly matched.
- the inner end surface of the first base 111 is provided with a partially embedded Rotate the accommodation groove 1111 of the adjustment gear j1.
- One end of the fixed shaft 113 passes through the second base 112 and is threadedly connected to the screw cap 114.
- the screw cap 114 fits on the outer end surface of the second base 112.
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Disclosed in the present invention is a headrest mechanism capable of being adjusted front and back and up and down, comprising a connecting frame provided at the top end of a chair back frame, and a headrest provided on the connecting frame. The connecting frame comprises a base frame fixed at the top end of the chair back frame, and a flipping frame hinged to the base frame and rotatably adjusted front and back; the headrest comprises a headrest frame and a support frame connected to the top and the bottom of the headrest frame; the support frame is provided with an adjustment slot which extends in the length direction of the support frame and runs through the left side and the right side of the support frame; the flipping frame is provided with a rotating shaft which extends in the left-right direction and is inserted into the adjustment slot; and the rotating shaft can be rotatably adjusted around the central axis of the rotating shaft, and can be slidably adjusted in the length direction of the adjustment slot relative to the support frame. The beneficial effects of the present invention are that: adjustment can be performed in height and front-back dimensions, and the adaptability is improved.
Description
本发明涉及一种头枕机构,尤其是可以前后高低调节的头枕机构。The present invention relates to a headrest mechanism, in particular to a headrest mechanism that can be adjusted forward and backward in height.
现有的办公椅,大多数会在椅背架的顶部设置头枕机构,对用户的头部或颈部提供支撑,为扩大用户的适配性,会在头枕机构上设置调节功能,用于调节头枕的位置。Most of the existing office chairs have a headrest mechanism on the top of the chair back frame to provide support for the user's head or neck. In order to expand the user's adaptability, an adjustment function is provided on the headrest mechanism. to adjust the position of the headrest.
例如公开号为CN209883542U的专利申请公开了一种头枕高度可调的办公椅,包括底盘结构、靠背结构、头枕结构,底盘结构与靠背结构的下端固定连接,头枕结构设置在靠背结构的上端;头枕结构包括头枕主体、高度调节机构;高度调节机构包括头枕连接杆、头枕连接部,头枕连接杆的上端与头枕主体连接,头枕连接杆的下端与头枕连接部连接,头枕连接部设置在靠背结构的背面;在头枕连接杆的一侧设有齿部,齿部沿头枕连接杆的长度方向分布;头枕连接部包括齿轮部,齿轮部与齿部啮合。For example, the patent application with publication number CN209883542U discloses an office chair with an adjustable headrest height, which includes a chassis structure, a backrest structure, and a headrest structure. The chassis structure is fixedly connected to the lower end of the backrest structure, and the headrest structure is arranged on the backrest structure. The upper end; the headrest structure includes a headrest main body and a height adjustment mechanism; the height adjustment mechanism includes a headrest connecting rod and a headrest connecting part. The upper end of the headrest connecting rod is connected to the headrest main body, and the lower end of the headrest connecting rod is connected to the headrest. The headrest connection part is arranged on the back of the backrest structure; a tooth part is provided on one side of the headrest connecting rod, and the tooth part is distributed along the length direction of the headrest connecting rod; the headrest connection part includes a gear part, and the gear part is connected to the backrest structure. Teeth mesh.
又例如公开号为CN213640255U的专利申请公开了一种办公椅头枕调节装置,包括头枕、头枕连接件、头枕靠背连接套筒、靠背移动件、靠背管,所述头枕插于头枕连接件上端,所述头枕连接件与头枕靠背连接套筒相连,所述头枕靠背连接套筒套于靠背移动件中间,所述靠背移动件套于靠背管上,所述靠背管上端左右含伸缩卡扣,所述靠背管顶端通过挡块与办公椅本体的靠背框架相连。该办公椅调节头枕装置可通过靠背移动件的上下移动调节头枕高度,并且通过改变头枕靠背连接套筒上六角螺丝的松紧程度而调整头枕的状态。For another example, the patent application with publication number CN213640255U discloses an office chair headrest adjustment device, which includes a headrest, a headrest connector, a headrest and backrest connection sleeve, a backrest moving part, and a backrest tube. The headrest is inserted into the headrest. The upper end of the pillow connector, the headrest connector is connected to the headrest back connection sleeve, the headrest back connection sleeve is sleeved in the middle of the backrest moving piece, the backrest moving piece is sleeved on the backrest tube, and the backrest tube The upper end contains telescopic buckles on the left and right sides, and the top of the backrest tube is connected to the backrest frame of the office chair body through a stop. The office chair headrest adjusting device can adjust the height of the headrest by moving the backrest moving part up and down, and adjust the state of the headrest by changing the tightness of the hexagonal screw on the headrest backrest connection sleeve.
以上两种头枕机构只能调节头枕的高度,应对不同身高的用户,或者对支撑部位(头部、颈部)有不同需求的用户,然而无法调节头枕的前后位置,无法对支撑深度进行调节。The above two headrest mechanisms can only adjust the height of the headrest to cope with users of different heights or users with different needs for support parts (head, neck). However, they cannot adjust the front and rear positions of the headrest and cannot adjust the depth of support. Make adjustments.
本发明要解决的技术问题是提供一种可以前后高低调节的头枕机构,能够在高度、前后两个维度进行调节,扩大了适配性。The technical problem to be solved by the present invention is to provide a headrest mechanism that can be adjusted in both height and front and rear dimensions, thereby expanding the adaptability.
本发明是通过以下技术方案来实现的。The present invention is achieved through the following technical solutions.
一种可以前后高低调节的头枕机构,包括设置在椅背架顶端的连接架、设置在连接架上的头枕;所述连接架包括固定在椅背架顶端的基架、铰接在基架上并且前后转动调节的翻转架;所述头枕包括头枕框、连接头枕框顶部和底部的支撑架;所述支撑架具有沿其长度方向延伸并且贯穿支撑架左右两侧的调节槽,翻转架设置有左右方向延伸并且插设在调节槽内的转轴;所述转轴可绕其中轴线转动调节,转轴可相对于支撑架沿调节槽长度方向滑动调节。A headrest mechanism that can be adjusted forward and backward in height, including a connecting frame arranged on the top of the chair back frame, and a headrest arranged on the connecting frame; the connecting frame includes a base frame fixed on the top of the chair back frame, and a base frame hinged on the base frame. a flip frame that can be adjusted upward and forward and backward; the headrest includes a headrest frame and a support frame connecting the top and bottom of the headrest frame; the support frame has an adjustment groove extending along its length direction and penetrating the left and right sides of the support frame, The flip frame is provided with a rotating shaft extending in the left and right directions and inserted in the adjusting slot; the rotating shaft can be rotated and adjusted around its central axis, and the rotating shaft can be slid and adjusted relative to the support frame along the length direction of the adjusting slot.
作为本发明的进一步改进,所述调节槽的槽壁上设有多个上下间隔布置的定位孔,所述转轴上设有定位件;或者所述调节槽的槽壁上设有多个上下间隔布置的定位件,所述转轴上设有定位孔;所述定位孔和定位件卡嵌配合。As a further improvement of the present invention, the groove wall of the adjustment groove is provided with a plurality of positioning holes arranged at intervals up and down, and the rotating shaft is provided with positioning parts; or the groove wall of the adjustment groove is provided with a plurality of up and down intervals. The positioning member is arranged, and the rotating shaft is provided with a positioning hole; the positioning hole and the positioning member are snap-fitted.
作为本发明的进一步改进,所述调节槽的槽壁上设有沿其长度方向延伸的导向结构,所述转轴上设有配合结构;所述导向结构和配合结构滑动连接。As a further improvement of the present invention, the groove wall of the adjustment groove is provided with a guide structure extending along its length direction, and the rotating shaft is provided with a matching structure; the guide structure and the matching structure are slidingly connected.
作为本发明的进一步改进,所述转轴上具有两个接触平面,分别贴合在调节槽的两个槽壁上;所述定位孔或定位件、配合结构置在接触平面上。As a further improvement of the present invention, the rotating shaft has two contact planes, which are respectively attached to the two groove walls of the adjustment groove; the positioning holes, positioning parts, and matching structures are placed on the contact planes.
作为本发明的进一步改进,所述支撑架包括连接头枕框顶部和底部的支撑板、盖板;支撑板上具有凹槽,凹槽的槽底形成调节槽的一个槽壁;所述盖板通过紧固件固定连接在支撑板上,并且其面向支撑板的面形成调节槽的另一个槽壁。As a further improvement of the present invention, the support frame includes a support plate and a cover plate connecting the top and bottom of the headrest frame; the support plate has a groove, and the bottom of the groove forms a groove wall of the adjustment groove; the cover plate It is fixedly connected to the support plate through fasteners, and its surface facing the support plate forms another groove wall of the adjustment groove.
作为本发明的进一步改进,所述翻转架的前部具有两个左右隔开的分叉结构,转轴的左右两端分别转动连接在两个分叉结构的端部;所述转轴的端部、分叉结构的端部分别具有绕转轴中轴线环形布置的第一转动调节齿条、第二转动调节齿条,第一转动调节齿条和第二转动调节齿条相互啮合并且至少一个为弹性材质。As a further improvement of the present invention, the front part of the flip frame has two bifurcated structures spaced left and right, and the left and right ends of the rotating shaft are respectively rotatably connected to the ends of the two bifurcated structures; the ends of the rotating shaft, The ends of the bifurcated structure respectively have a first rotation adjustment rack and a second rotation adjustment rack arranged annularly around the central axis of the rotation shaft. The first rotation adjustment rack and the second rotation adjustment rack mesh with each other and at least one of them is made of elastic material. .
作为本发明的进一步改进,所述转轴的端部设有第一限位槽,分叉结构的端部设有第一限位结构;或者,所述转轴的端部具有第一限位结构,分叉结构的端部设有第一限位槽;所述第一限位结构受限在第一限位槽内,用以限制转轴绕其中轴线的转动范围。As a further improvement of the present invention, the end of the rotating shaft is provided with a first limiting groove, and the end of the bifurcated structure is provided with a first limiting structure; or, the end of the rotating shaft is provided with a first limiting structure, A first limiting groove is provided at the end of the bifurcated structure; the first limiting structure is limited in the first limiting groove to limit the rotation range of the rotating shaft around its central axis.
作为本发明的进一步改进,所述基架顶部的左右两侧分别设有第一基座、第二基座,第一基座和第二基座之间连接有固定轴;所述翻转架具有转动套接在固定轴上的套管结构;所述第一基座的内端面上设有转动调节齿轮,套管结构相对应的端面上具有环形布置的转动调节齿槽,转动调节齿轮和转动调节齿槽相互啮合并且至少其中一个为弹性材质。As a further improvement of the present invention, a first base and a second base are respectively provided on the left and right sides of the top of the base frame, and a fixed shaft is connected between the first base and the second base; the flip frame has The casing structure is rotated and sleeved on the fixed shaft; the inner end surface of the first base is provided with a rotation adjustment gear, and the corresponding end surface of the casing structure has an annular arrangement of rotation adjustment tooth slots. The rotation adjustment gear and the rotation adjustment gear are arranged in an annular manner. The adjusting tooth slots mesh with each other and at least one of them is made of elastic material.
作为本发明的进一步改进,所述第二基座的内端面上设有第二限位槽,套管结构相对应的端面上设有第二限位结构;或者,所述第二基座的端面上设有第二限位结构,套管结构相对应的端面上设有第二限位槽;所述第二限位结构受限在第二限位槽内,用以限制翻转架的前后转动范围。As a further improvement of the present invention, a second limiting groove is provided on the inner end surface of the second base, and a second limiting structure is provided on the end surface corresponding to the casing structure; or, the second limiting groove is provided on the inner end surface of the second base. A second limiting structure is provided on the end surface, and a second limiting groove is provided on the corresponding end surface of the casing structure; the second limiting structure is limited in the second limiting groove to limit the front and rear movement of the flip frame. Rotation range.
作为本发明的进一步改进,所述转动调节齿轮套接在固定轴上并且两者螺纹配合;所述第一基座的内端面上设有部分卡嵌所述转动调节齿轮的容纳槽;所述固定轴的一端穿过第二基座并且螺纹连接有旋盖,旋盖贴合在第二基座的外端面上。As a further improvement of the present invention, the rotation adjustment gear is sleeved on the fixed shaft and the two are threadedly matched; the inner end surface of the first base is provided with a receiving groove for partially engaging the rotation adjustment gear; One end of the fixed shaft passes through the second base and is threadedly connected with a screw cap, which is attached to the outer end surface of the second base.
本发明通过转轴相沿调节槽的滑动调节,从而可以调节头枕的高度位置,通过翻转架的前后转动调节、以及转轴绕其中轴线的转动调节,从而可以调节头枕的前后位置,实现了头枕在两个维度上的调节功能。The present invention can adjust the height position of the headrest through the sliding adjustment of the rotating shaft along the adjustment groove, and can adjust the front and rear position of the headrest through the forward and backward rotational adjustment of the flip frame and the rotational adjustment of the rotating shaft around its central axis, thereby realizing the headrest. Regulatory function in two dimensions.
下面将通过附图详细描述本发明中优选实施案例,以助于理解本发明的目的和优点,其中:The preferred embodiments of the present invention will be described in detail below through the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:
图1为头枕机构的侧视图;Figure 1 is a side view of the headrest mechanism;
图2为头枕和转轴的剖视图;Figure 2 is a cross-sectional view of the headrest and rotating shaft;
图3为头枕和转轴的拆卸示意图一;Figure 3 is a schematic diagram of the disassembly of the headrest and rotating shaft;
图4为头枕和转轴的拆卸示意图二;Figure 4 is the second disassembly diagram of the headrest and shaft;
图5为转轴的结构示意图;Figure 5 is a schematic structural diagram of the rotating shaft;
图6为翻转架的结构示意图一;Figure 6 is a schematic structural diagram of the flip frame;
图7为翻转架的结构示意图二;Figure 7 is a schematic diagram 2 of the structure of the flip frame;
图8为基架的结构示意图一;Figure 8 is a schematic structural diagram of the base frame;
图9为基架的结构示意图二。Figure 9 is the second structural diagram of the base frame.
下面根据附图和实施案例对本发明作进一步详细说明。The present invention will be further described in detail below based on the accompanying drawings and implementation examples.
在本说明书中提到或者可能提到的上、下、左、右、前、后、正面、背面、顶部、底部等方位用语是相对于各附图中所示的构造进行定义的,词语“内”和“外”分别指的是朝向或远离特定部件几何中心的方向它们是相对的概念,因此有可能会根据其所处不同位置、不同使用状态而进行相应地变化。所以,也不应当将这些或者其他的方位用语解释为限制性用语。The terms "upper, lower, left, right, front, back, front, back, top, bottom, etc." mentioned or possibly mentioned in this specification are defined relative to the structure shown in each drawing. The words " "Inside" and "outside" refer to the direction toward or away from the geometric center of a specific component respectively. They are relative concepts, and therefore may change accordingly according to their different locations and different usage states. Therefore, these or other directional terms should not be construed as restrictive terms.
参照图1-图9,一种可以前后高低调节的头枕机构,包括连接架1、头枕2,所述连接架1设置在椅背架3的顶端,头枕2设置在连接架1上。Referring to Figures 1 to 9, a headrest mechanism that can be adjusted forward and backward in height includes a connecting frame 1 and a headrest 2. The connecting frame 1 is arranged on the top of the chair back frame 3, and the headrest 2 is arranged on the connecting frame 1. .
所述连接架1包括基架11、翻转架12,其中基架11的中下部具有一个卡爪结构115,所述卡爪结构115扣接在椅背架3的顶梁上,使得连接架1和椅背架3顶端的固定连接。所述翻转架12的后端和基架11的顶部铰接,使得翻转架12可以前后转动调节,翻转架12由后端向上竖向延伸,再向前弯折延伸至其前端。The connecting frame 1 includes a base frame 11 and a flip frame 12. The middle and lower part of the base frame 11 has a claw structure 115. The claw structure 115 is buckled on the top beam of the chair back frame 3, so that the connecting frame 1 Fixed connection with the top of the chair back frame 3. The rear end of the flip frame 12 is hinged to the top of the base frame 11 so that the flip frame 12 can be rotated and adjusted forward and backward. The flip frame 12 vertically extends upward from the rear end, and then bends forward to extend to its front end.
所述头枕2包括头枕框21、支撑架22,所述头枕框21内设置枕面(图中未显示),枕面的边缘固定在头枕框21的内沿上,用于支撑用户的头颈部。所述头枕框21由中部向左右两侧逐渐朝前方弯曲,使得头枕2面可以包裹住头颈部的两侧。所述支撑架22为直线型结构,其顶端、底端分别连接在头枕框21的顶部、底部的中间位置,并且避让开头枕2面。所述支撑架22具有沿其长度方向延伸并且贯穿支撑架22左右两侧的调节槽221,所述翻转架12设置有左右方向延伸并且插设在调节槽221内的转轴121,所述转轴121可绕其中轴线转动调节,转轴121可相对于支撑架22沿调节槽221长度方向滑动调节。The headrest 2 includes a headrest frame 21 and a support frame 22. A pillow surface (not shown in the figure) is provided in the headrest frame 21. The edge of the pillow surface is fixed on the inner edge of the headrest frame 21 for support. The user’s head and neck. The headrest frame 21 is gradually bent forward from the middle to the left and right sides, so that the two sides of the headrest can wrap around both sides of the head and neck. The support frame 22 has a linear structure, and its top end and bottom end are respectively connected to the middle position of the top and bottom of the headrest frame 21, and avoids two sides of the headrest. The support frame 22 has an adjustment slot 221 extending along its length direction and penetrating the left and right sides of the support frame 22 . The flip frame 12 is provided with a rotating shaft 121 that extends in the left and right direction and is inserted into the adjusting slot 221 . The rotating shaft 121 It can be rotated and adjusted around its central axis, and the rotating shaft 121 can be slid and adjusted relative to the support frame 22 along the length direction of the adjustment groove 221 .
需要注意的是,翻转架12的前后转动调节、转轴121绕其中轴线的转动调节、以及转轴121沿调节槽221的滑动调节,这三种调节均为解除锁定并且转动一定幅度、移动一定距离后重新锁定。It should be noted that the front and rear rotation adjustment of the flip frame 12, the rotation adjustment of the rotating shaft 121 around its central axis, and the sliding adjustment of the rotating shaft 121 along the adjustment groove 221 are all performed after the lock is unlocked and rotated to a certain extent and moved a certain distance. Relock.
用户通过上下滑动所述头枕框21,使得转轴121相对于支撑架22沿调节槽221长度方向滑动调节,从而可以对头枕2进行高低调节。用户通过前后转动调节翻转架12,使得头枕2改变前后位置,再绕中轴线转动调节转轴121,调节头枕2的朝向,从而可以对头枕2进行前后调节。通过高度、前后双重调节,能够适宜于不同身高、不同支撑部位、不同支撑深度的需求。The user can adjust the height of the headrest 2 by sliding the headrest frame 21 up and down so that the rotating shaft 121 slides and adjusts relative to the support frame 22 along the length direction of the adjustment groove 221 . The user adjusts the flip frame 12 by rotating it forward and backward to change the front and rear position of the headrest 2, and then rotates the adjustment shaft 121 around the central axis to adjust the orientation of the headrest 2, thereby adjusting the headrest 2 front and back. Through double adjustment of height and front and rear, it can be suitable for the needs of different heights, different support parts, and different support depths.
所述调节槽221的槽壁上设有多个上下间隔布置的定位孔2211,所述转轴121上设有定位件1211,定位孔2211和定位件1211卡嵌配合。进一步地,所述定位件1211设为形成在转轴121表面的球状结构,所述定位孔2211设为与定位件1211形状相适配的内凹球面。可将定位件1211设置成弹性结构,当转轴121沿调节槽221滑动时,定位件1211被挤压压缩并从当前定位孔2211中脱出,待调节完成后卡嵌入对应的定位孔2211中。也可以在定位件1211和转轴121之间设置弹性件,例如复位弹簧,当转轴121沿调节槽221滑动时,弹性件被压缩使得定位件1211从当前定位孔2211中脱出,调节完成后弹性件的弹力使得定位件1211卡嵌入对应的定位孔2211中。The groove wall of the adjustment groove 221 is provided with a plurality of positioning holes 2211 arranged at intervals up and down. The rotating shaft 121 is provided with positioning parts 1211. The positioning holes 2211 and the positioning parts 1211 engage in a snap fit. Furthermore, the positioning member 1211 is configured as a spherical structure formed on the surface of the rotating shaft 121 , and the positioning hole 2211 is configured as a concave spherical surface that matches the shape of the positioning member 1211 . The positioning member 1211 can be configured as an elastic structure. When the rotating shaft 121 slides along the adjustment groove 221, the positioning member 1211 is extruded and compressed and comes out of the current positioning hole 2211. After the adjustment is completed, the positioning member 1211 is inserted into the corresponding positioning hole 2211. An elastic member, such as a return spring, can also be provided between the positioning member 1211 and the rotating shaft 121. When the rotating shaft 121 slides along the adjustment groove 221, the elastic member is compressed so that the positioning member 1211 comes out of the current positioning hole 2211. After the adjustment is completed, the elastic member The elastic force makes the positioning member 1211 snap into the corresponding positioning hole 2211.
另外,也可以将定位孔设置在转轴121上,在调节槽221的槽壁上设置多个上下间隔布置的定位件,效果是相同的,但从成本上考虑,还是上述方案为最优方案。In addition, positioning holes can also be provided on the rotating shaft 121, and a plurality of positioning members spaced up and down can be provided on the groove wall of the adjustment groove 221. The effect is the same, but from a cost perspective, the above solution is still the optimal solution.
当上下滑动所述头枕框21进行高度调节时,为避免转轴121和头枕框21发生左右方向上的错位偏移,因此在所述调节槽221的槽壁上设有沿其长度方向延伸的导向结构2212,所述转轴121上设有配合结构1212,所述导向结构2212和配合结构1212滑动连接。更为具体地,所述导向结构2212设为形成在槽壁上并且沿调节槽221长度方向延伸的内凹滑槽,而配合结构1212设为形成在转轴121上并且和内凹滑槽形状适配的插块结构或插条结构。另外,导向结构2212可以设置在其中一个槽壁上,也可以同时设置在两个槽壁上。When the headrest frame 21 is slid up and down for height adjustment, in order to prevent the rotating shaft 121 and the headrest frame 21 from being displaced in the left and right directions, a groove extending along the length direction of the groove wall of the adjustment groove 221 is provided. The guide structure 2212 is provided with a matching structure 1212 on the rotating shaft 121, and the guide structure 2212 and the matching structure 1212 are slidingly connected. More specifically, the guide structure 2212 is formed on the groove wall and extends along the length direction of the adjustment groove 221, and the matching structure 1212 is formed on the rotating shaft 121 and is adapted to the shape of the concave slide. Matching plug structure or insert structure. In addition, the guide structure 2212 can be provided on one of the groove walls, or can be provided on both groove walls at the same time.
进一步地,所述转轴121具有两个接触平面121a、121b,分别贴合在调节槽221的两个槽壁上,使得转轴121插设在调节槽221内的部分呈现为扁平状的结构,一方面可以增加转轴121和两个槽壁的接触面积,从而提高两者的相互支撑稳定程度;另一方面,可以缩小调节槽221的宽度,使得支撑架22的整体结构更为紧凑,节省空间也避免和头枕2面发生干涉。另外,所述定位孔2211或定位件1211、配合结构1212置在接触平面上。Furthermore, the rotating shaft 121 has two contact planes 121a and 121b, which are respectively attached to the two groove walls of the adjusting slot 221, so that the part of the rotating shaft 121 inserted in the adjusting slot 221 has a flat structure. On the one hand, the contact area between the rotating shaft 121 and the two groove walls can be increased, thereby improving the mutual support stability of the two; on the other hand, the width of the adjustment groove 221 can be reduced, making the overall structure of the support frame 22 more compact and saving space. Avoid interference with both sides of the headrest. In addition, the positioning hole 2211 or the positioning member 1211 and the matching structure 1212 are placed on the contact plane.
所述支撑架22包括支撑板22-1、盖板22-2,其中所述支撑板22-1的顶端、底端分别连接头枕框21的顶部、底部,支撑板22-1上具有凹槽,凹槽的槽底形成调节槽221的一个槽壁,所述盖板22-2通过紧固件固定连接在支撑板22-1上,并且其面向支撑板22-1的面形成调节槽221的另一个槽壁。所述支撑架22通过支撑板22-1、盖板22-2的设置成为一个可拆卸的结构,可方便厂家生产后的分体包装,同时组装也比较方便,另外,通过紧固件进行组装可以调整所述调节槽221对转轴121的夹持力度,用户可据此自由调整滑动支撑架22的松紧程度。The support frame 22 includes a support plate 22-1 and a cover plate 22-2, wherein the top and bottom ends of the support plate 22-1 are respectively connected to the top and bottom of the headrest frame 21, and the support plate 22-1 has a concave surface. The bottom of the groove forms a groove wall of the adjustment groove 221. The cover plate 22-2 is fixedly connected to the support plate 22-1 through fasteners, and its surface facing the support plate 22-1 forms an adjustment groove. Another tank wall of 221. The support frame 22 becomes a detachable structure through the support plate 22-1 and the cover plate 22-2, which can facilitate the split packaging after production by the manufacturer, and is also more convenient to assemble. In addition, it is assembled through fasteners. The clamping strength of the adjusting groove 221 on the rotating shaft 121 can be adjusted, and the user can freely adjust the tightness of the sliding support frame 22 accordingly.
对于翻转架12和转轴121的连接关系,所述翻转架12的前部具有两个左右隔开的分叉结构122,这两个分叉结构122左右对称,转轴121的左右两端分别转动连接在两个分叉结构122的端部。更为具体地,所述转轴121的端部、分叉结构122的端部分别具有绕转轴121中轴线环形布置的第一转动调节齿条h1、第二转动调节齿条h2,第一转动调节齿条h1和第二转动调节齿条h2相互啮合,并且第一转动调节齿条h1、第二转动调节齿条h2中的至少一个为弹性材质。当用户握住头枕框21绕转轴121的中轴线转动时,所述第一转动调节齿条h1和第二转动调节齿条h2发生相对转动,可以较为精确地进行调节。Regarding the connection relationship between the flip frame 12 and the rotating shaft 121, the front part of the flip frame 12 has two bifurcated structures 122 spaced left and right. The two bifurcated structures 122 are left and right symmetrical, and the left and right ends of the rotating shaft 121 are respectively connected by rotation. at the ends of the two bifurcated structures 122 . More specifically, the end of the rotating shaft 121 and the end of the bifurcated structure 122 respectively have a first rotation adjustment rack h1 and a second rotation adjustment rack h2 arranged annularly around the central axis of the rotation shaft 121. The rack h1 and the second rotation adjustment rack h2 mesh with each other, and at least one of the first rotation adjustment rack h1 and the second rotation adjustment rack h2 is made of elastic material. When the user holds the headrest frame 21 and rotates it around the central axis of the rotating shaft 121, the first rotational adjustment rack h1 and the second rotational adjustment rack h2 rotate relative to each other, allowing for more precise adjustment.
再进一步地,所述转轴121的端部设有第一限位槽h3,第一限位槽h3呈扇形,并且被所述第一转动调节齿条h1围绕。分叉结构122的端部设有第一限位结构h4,第一限位结构h4呈条状结构,并且受限在第一限位槽h3内,当转轴121绕其中轴线转动时,所述第一限位结构h4在第一限位槽h3内移动,当第一限位结构h4抵在第一限位槽h3的两侧时转轴121就无法继续转动,从而限制转轴121绕其中轴线的转动范围,以免用户转动调节过度。Furthermore, the end of the rotating shaft 121 is provided with a first limiting groove h3. The first limiting groove h3 is sector-shaped and is surrounded by the first rotation adjustment rack h1. The end of the bifurcated structure 122 is provided with a first limiting structure h4. The first limiting structure h4 is a strip structure and is limited in the first limiting groove h3. When the rotating shaft 121 rotates around its central axis, the first limiting structure h4 is The first limiting structure h4 moves in the first limiting groove h3. When the first limiting structure h4 abuts both sides of the first limiting groove h3, the rotating shaft 121 cannot continue to rotate, thereby limiting the rotation of the rotating shaft 121 around its central axis. The range of rotation prevents the user from over-adjusting the rotation.
对于基架11和翻转架12的连接关系,所述基架11顶部的左右两侧分别设有第一基座111、第二基座112,第一基座111和第二基座112由基架11的顶部向上凸起形成。第一基座111和第二基座112之间连接有固定轴113,所述翻转架12的后端具有套管结构123,所述套管结构123可转动地套接在固定轴113上。其中,所述第一基座111的内端面上设有转动调节齿轮j1,套管结构123相对应的端面即相面第一基座111的端面上具有环形布置的转动调节齿槽j2,转动调节齿轮j1和转动调节齿槽j2相互啮合,并且至少其中一个为弹性材质,从而可以实现翻转架12较为精准的转动调节。Regarding the connection relationship between the base frame 11 and the flip frame 12, a first base 111 and a second base 112 are respectively provided on the left and right sides of the top of the base frame 11. The first base 111 and the second base 112 are formed by the base. The top of the frame 11 is formed by protruding upward. A fixed shaft 113 is connected between the first base 111 and the second base 112. The rear end of the flip frame 12 has a sleeve structure 123, and the sleeve structure 123 is rotatably sleeved on the fixed shaft 113. Among them, the inner end surface of the first base 111 is provided with a rotation adjustment gear j1, and the corresponding end surface of the casing structure 123, that is, the end surface of the first base 111 facing the first base 111 has an annular arrangement of rotation adjustment gear slots j2. The adjustment gear j1 and the rotation adjustment tooth slot j2 mesh with each other, and at least one of them is made of elastic material, so that a more precise rotation adjustment of the flip frame 12 can be achieved.
所述第二基座112的内端面上设有第二限位槽j3,第二限位槽j3呈扇形的形状,套管结构123相对应的端面上设有第二限位结构j4,第二限位结构j4呈插设在第二限位槽j3内的插块结构,并且受限在第二限位槽j3内,当前后转动翻转架12,使得第二限位结构j4抵在第二限位槽j3的两侧时,翻转架12就无法继续转动,从而限制了翻转架12的前后转动范围。A second limiting groove j3 is provided on the inner end surface of the second base 112. The second limiting groove j3 is in a fan-shaped shape. A second limiting structure j4 is provided on the corresponding end surface of the casing structure 123. The two limiting structures j4 are in the form of a plug-in structure inserted in the second limiting slot j3 and are limited in the second limiting slot j3. The flip frame 12 is rotated back and forth so that the second limiting structure j4 is against the second limiting slot j3. When the two sides of the limiting groove j3 are located, the flip frame 12 cannot continue to rotate, thereby limiting the forward and backward rotation range of the flip frame 12.
为了便于翻转架12和基架11的组装拆卸,所述转动调节齿轮j1套接在固定轴113上并且两者螺纹配合,所述第一基座111的内端面上设有部分卡嵌所述转动调节齿轮j1的容纳槽1111,所述固定轴113的一端穿过第二基座112并且螺纹连接有旋盖114,旋盖114贴合在第二基座112的外端面上。In order to facilitate the assembly and disassembly of the flip frame 12 and the base frame 11, the rotation adjustment gear j1 is sleeved on the fixed shaft 113 and the two are threadedly matched. The inner end surface of the first base 111 is provided with a partially embedded Rotate the accommodation groove 1111 of the adjustment gear j1. One end of the fixed shaft 113 passes through the second base 112 and is threadedly connected to the screw cap 114. The screw cap 114 fits on the outer end surface of the second base 112.
最后应说明的是:以上实施案例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施案例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施案例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施案例技术方案的范围。Finally, it should be noted that the above implementation examples are only used to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing implementation examples, those of ordinary skill in the art should understand that it can still be used Modifications are made to the technical solutions recorded in the foregoing embodiments, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions in each embodiment of the present invention.
Claims (10)
- 一种可以前后高低调节的头枕机构,包括设置在椅背架顶端的连接架、设置在连接架上的头枕;其特征在于,所述连接架包括固定在椅背架顶端的基架、铰接在基架上并且前后转动调节的翻转架;所述头枕包括头枕框、连接头枕框顶部和底部的支撑架;所述支撑架具有沿其长度方向延伸并且贯穿支撑架左右两侧的调节槽,翻转架设置有左右方向延伸并且插设在调节槽内的转轴;所述转轴可绕其中轴线转动调节,转轴可相对于支撑架沿调节槽长度方向滑动调节。A headrest mechanism that can be adjusted forward and backward in height, including a connecting frame arranged on the top of the chair back frame, and a headrest arranged on the connecting frame; characterized in that the connecting frame includes a base frame fixed on the top of the chair back frame, A flip frame that is hinged on the base frame and can be rotated forward and backward; the headrest includes a headrest frame and a support frame connecting the top and bottom of the headrest frame; the support frame has a structure that extends along its length and runs through the left and right sides of the support frame The turning frame is provided with a rotating shaft extending in the left and right directions and inserted in the adjusting slot; the rotating shaft can be rotated and adjusted around its central axis, and the rotating shaft can be slid and adjusted relative to the support frame along the length direction of the adjusting slot.
- 根据权利要求1所述的可以前后高低调节的头枕机构,其特征在于,所述调节槽的槽壁上设有多个上下间隔布置的定位孔,所述转轴上设有定位件;或者,所述调节槽的槽壁上设有多个上下间隔布置的定位件,所述转轴上设有定位孔;所述定位孔和定位件卡嵌配合。The headrest mechanism that can be adjusted forward and backward according to claim 1, wherein the groove wall of the adjustment groove is provided with a plurality of positioning holes spaced up and down, and the rotating shaft is provided with positioning parts; or, The groove wall of the adjustment groove is provided with a plurality of positioning parts arranged at intervals up and down, and the rotating shaft is provided with positioning holes; the positioning holes and the positioning parts fit in a snap fit.
- 根据权利要求2所述的可以前后高低调节的头枕机构,其特征在于,所述调节槽的槽壁上设有沿其长度方向延伸的导向结构,所述转轴上设有配合结构;所述导向结构和配合结构滑动连接。The headrest mechanism that can be adjusted forward and backward according to claim 2, wherein the groove wall of the adjustment groove is provided with a guide structure extending along its length direction, and the rotating shaft is provided with a matching structure; The guide structure and the matching structure are slidingly connected.
- 根据权利要求3所述的可以前后高低调节的头枕机构,其特征在于,所述转轴上具有两个接触平面,分别贴合在调节槽的两个槽壁上;所述定位孔或定位件、配合结构置在接触平面上。The headrest mechanism that can be adjusted forward and backward according to claim 3, characterized in that the rotating shaft has two contact planes, which are respectively attached to the two groove walls of the adjustment groove; the positioning hole or positioning member , the matching structure is placed on the contact plane.
- 根据权利要求4所述的可以前后高低调节的头枕机构,其特征在于,所述支撑架包括连接头枕框顶部和底部的支撑板、盖板;支撑板上具有凹槽,凹槽的槽底形成调节槽的一个槽壁;所述盖板通过紧固件固定连接在支撑板上,并且其面向支撑板的面形成调节槽的另一个槽壁。The headrest mechanism according to claim 4, wherein the support frame includes a support plate and a cover plate connecting the top and bottom of the headrest frame; the support plate has a groove, and the groove of the groove is The bottom forms one groove wall of the adjustment groove; the cover plate is fixedly connected to the support plate through fasteners, and its surface facing the support plate forms another groove wall of the adjustment groove.
- 根据权利要求1所述的可以前后高低调节的头枕机构,其特征在于,所述翻转架的前部具有两个左右隔开的分叉结构,转轴的左右两端分别转动连接在两个分叉结构的端部;所述转轴的端部、分叉结构的端部分别具有绕转轴中轴线环形布置的第一转动调节齿条、第二转动调节齿条,第一转动调节齿条和第二转动调节齿条相互啮合并且至少一个为弹性材质。The headrest mechanism that can be adjusted forward and backward according to claim 1, characterized in that the front part of the flip frame has two bifurcated structures separated to the left and right, and the left and right ends of the rotating shaft are respectively rotatably connected to the two bifurcated structures. The end of the fork structure; the end of the rotating shaft and the end of the bifurcated structure respectively have a first rotation adjustment rack and a second rotation adjustment rack arranged annularly around the central axis of the rotation shaft, and the first rotation adjustment rack and the third rotation adjustment rack The two rotating adjustment racks mesh with each other and at least one of them is made of elastic material.
- 根据权利要求6所述的可以前后高低调节的头枕机构,其特征在于,所述转轴的端部设有第一限位槽,分叉结构的端部设有第一限位结构;或者,所述转轴的端部具有第一限位结构,分叉结构的端部设有第一限位槽;所述第一限位结构受限在第一限位槽内,用以限制转轴绕其中轴线的转动范围。The headrest mechanism that can be adjusted forward and backward according to claim 6, wherein the end of the rotating shaft is provided with a first limiting groove, and the end of the bifurcated structure is provided with a first limiting structure; or, The end of the rotating shaft has a first limiting structure, and the end of the bifurcated structure is provided with a first limiting groove; the first limiting structure is limited in the first limiting groove to limit the rotation of the rotating shaft. The rotation range of the axis.
- 根据权利要求1所述的可以前后高低调节的头枕机构,其特征在于,所述基架顶部的左右两侧分别设有第一基座、第二基座,第一基座和第二基座之间连接有固定轴;所述翻转架具有转动套接在固定轴上的套管结构;所述第一基座的内端面上设有转动调节齿轮,套管结构相对应的端面上具有环形布置的转动调节齿槽,转动调节齿轮和转动调节齿槽相互啮合并且至少其中一个为弹性材质。The headrest mechanism according to claim 1, wherein the first base and the second base are respectively provided on the left and right sides of the top of the base frame. A fixed shaft is connected between the seats; the flip frame has a sleeve structure that is rotated and sleeved on the fixed shaft; a rotation adjustment gear is provided on the inner end surface of the first base, and the corresponding end surface of the sleeve structure has a There are annularly arranged rotation adjustment tooth slots, the rotation adjustment gear and the rotation adjustment gear slot mesh with each other, and at least one of them is made of elastic material.
- 根据权利要求8所述的可以前后高低调节的头枕机构,其特征在于,所述第二基座的内端面上设有第二限位槽,套管结构相对应的端面上设有第二限位结构;或者,所述第二基座的端面上设有第二限位结构,套管结构相对应的端面上设有第二限位槽;所述第二限位结构受限在第二限位槽内,用以限制翻转架的前后转动范围。The headrest mechanism according to claim 8, wherein the inner end surface of the second base is provided with a second limiting groove, and the corresponding end surface of the sleeve structure is provided with a second limiting groove. a limiting structure; or, a second limiting structure is provided on the end surface of the second base, and a second limiting groove is provided on the end surface corresponding to the casing structure; the second limiting structure is limited to the first The second limit slot is used to limit the forward and backward rotation range of the flip frame.
- 根据权利要求9所述的可以前后高低调节的头枕机构,其特征在于,所述转动调节齿轮套接在固定轴上并且两者螺纹配合;所述第一基座的内端面上设有部分卡嵌所述转动调节齿轮的容纳槽;所述固定轴的一端穿过第二基座并且螺纹连接有旋盖,旋盖贴合在第二基座的外端面上。The headrest mechanism that can be adjusted forward and backward according to claim 9, characterized in that the rotation adjustment gear is sleeved on the fixed shaft and the two are threadedly matched; the inner end surface of the first base is provided with a partial The accommodating groove of the rotation adjustment gear is engaged; one end of the fixed shaft passes through the second base and is threadedly connected with a screw cap, and the screw cap fits on the outer end surface of the second base.
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CN202220961407.0 | 2022-04-25 | ||
CN202220961407.0U CN217337932U (en) | 2022-04-25 | 2022-04-25 | Headrest mechanism capable of adjusting front and back height |
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WO2023207090A1 true WO2023207090A1 (en) | 2023-11-02 |
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PCT/CN2022/135748 WO2023207090A1 (en) | 2022-04-25 | 2022-12-01 | Headrest mechanism capable of being adjusted front and back and up and down |
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WO (1) | WO2023207090A1 (en) |
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CN217337932U (en) * | 2022-04-25 | 2022-09-02 | 浙江瑞尚智能家居有限公司 | Headrest mechanism capable of adjusting front and back height |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2732081Y (en) * | 2004-09-27 | 2005-10-12 | 卢顺接 | Position adjustable office chair headrest mechanism |
CN209018151U (en) * | 2018-06-25 | 2019-06-25 | 浙江圣奥家具制造有限公司 | A kind of bindiny mechanism for backrest of resting the head on |
CN210961119U (en) * | 2019-11-20 | 2020-07-10 | 唐奇龙 | Novel multifunctional headrest |
CN215271602U (en) * | 2021-05-25 | 2021-12-24 | 安吉德卡办公***有限公司 | Chair capable of inclining forwards and backwards |
CN217337932U (en) * | 2022-04-25 | 2022-09-02 | 浙江瑞尚智能家居有限公司 | Headrest mechanism capable of adjusting front and back height |
-
2022
- 2022-04-25 CN CN202220961407.0U patent/CN217337932U/en active Active
- 2022-12-01 WO PCT/CN2022/135748 patent/WO2023207090A1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2732081Y (en) * | 2004-09-27 | 2005-10-12 | 卢顺接 | Position adjustable office chair headrest mechanism |
CN209018151U (en) * | 2018-06-25 | 2019-06-25 | 浙江圣奥家具制造有限公司 | A kind of bindiny mechanism for backrest of resting the head on |
CN210961119U (en) * | 2019-11-20 | 2020-07-10 | 唐奇龙 | Novel multifunctional headrest |
CN215271602U (en) * | 2021-05-25 | 2021-12-24 | 安吉德卡办公***有限公司 | Chair capable of inclining forwards and backwards |
CN217337932U (en) * | 2022-04-25 | 2022-09-02 | 浙江瑞尚智能家居有限公司 | Headrest mechanism capable of adjusting front and back height |
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