Seat headrest adjusting mechanism and seat
Through the combined design of the slide chute and slider, the failure problem of the seat headrest adjustment mechanism due to head and neck compression deformation is solved, and a smoother and more stable headrest height adjustment is achieved to meet individual needs.
Patent Information
- Application Number
- CN202421021930.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The existing seat headrest adjustment mechanism is prone to deform after being squeezed by the head and neck, resulting in failure of adjustment and difficult to meet personal needs.
With a design including a slide chute, a slider and a locking assembly, the slider slides in the slide chute and is fixed to the connecting seat through the connecting arm to ensure that the slider slides in the direction of the sliding groove without deflection, and the human body pressure is transmitted to the connecting seat without affecting it. The slider moves to improve adjustment smoothness.
It solves the problem of failure of the adjustment mechanism caused by head and neck compression, improves the smoothness and stability of the headrest up and down adjustment, and meets personal needs.
Smart Images
Figure CN222171698U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seats, in particular to a seat headrest adjustment mechanism and a seat. Background Art
[0002] Current office chairs and gaming chairs are usually equipped with headrests to support the user's head and neck to improve the comfort of the chair. The headrests of most existing chairs are fixed to the top of the seat back, which makes it difficult to meet the user's individual needs.
[0003] In order to meet the different individual needs of users, some existing seats are usually equipped with adjustable headrests. By adjusting the height of the headrest, the headrest can be adjusted to a better position to support the head and neck according to users of different heights or different sitting posture requirements. For example, in some seats, a telescopic rod mechanism is used to achieve the lifting of the headrest. The pressure exerted on the headrest when supporting the head or neck is perpendicular or approximately perpendicular to the extension direction of the telescopic rod mechanism. The telescopic rod mechanism is easily deformed by a vertical external force. The deformed telescopic rod mechanism usually becomes difficult to stretch or shrink, thereby causing the entire seat headrest adjustment mechanism to fail. Utility Model Content
[0004] The utility model aims to provide a seat headrest adjustment mechanism and a seat, which can solve the problem of failure of the adjustment mechanism caused by deformation of the seat headrest after being squeezed by the head and neck in the prior art.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A seat headrest adjustment mechanism, comprising a headrest, a connecting seat and a connecting piece;
[0007] The headrest includes a lifting seat, a flexible support pad connected to the lifting seat, a slide groove extending in the height direction is arranged on one side of the lifting seat facing the flexible support pad, and an avoidance groove extending from the bottom surface of the slide groove to the side surface of the lifting seat away from the flexible support pad, and a portion of the bottom surface of the slide groove between the side edge of the avoidance groove and the side wall of the slide groove forms a support surface;
[0008] The connecting member includes a slider embedded in the slide groove and slidable along the extension direction of the slide groove, and a connecting arm extending from the slider in a direction away from the flexible support pad and passing through the avoidance slot, and the connecting arm is attached to the connecting seat after passing through the avoidance slot, so that the slider abuts against the support surface, and the connecting seat abuts against the side of the lifting seat away from the flexible support pad;
[0009] A locking assembly is arranged between the slider and the side wall of the slide slot, and the locking assembly is used to lock the slider to the side wall of the slide slot after the slider slides to a predetermined position along the extending direction of the slide slot.
[0010] Preferably, the locking assembly includes a plurality of slots arranged on both side walls of the slide slot, and two elastic locking members respectively arranged on both sides of the slide block, and the two elastic locking members are respectively locked in the corresponding slots on the two side walls of the slide slot.
[0011] Preferably, a mounting hole is respectively provided on both side surfaces of the slider, and the elastic locking member includes a shell, a spring located in the shell, and a locking steel ball. The shell is fixedly connected in the mounting hole, and the spring is used to push the locking steel ball toward the opening of the mounting hole so that a part of the locking steel ball protrudes from the opening of the mounting hole.
[0012] Preferably, the lifting seat includes a supporting back plate, which includes a first surface facing the flexible support pad and a second surface away from the flexible support pad. Two convex ribs extending along the height direction are arranged on the first surface. The slide groove is surrounded by the two convex ribs and the first surface. The part of the first surface located between the two convex ribs forms the bottom surface of the slide groove.
[0013] Preferably, the lifting seat further comprises a cover plate fixed on the supporting back plate and covering the slide groove, and a side of the cover plate facing away from the supporting back plate forms an attachment plane for connecting with the flexible supporting pad.
[0014] Preferably, a pad is fixedly connected to the support back plate in a detachable manner, the pad covers the second surface of the support back plate and contacts and cooperates with the end surface of the connecting seat, a groove extending along the height direction is provided on the pad, and a first supporting rib embedded in the groove is arranged on the end surface of the connecting seat.
[0015] Preferably, a second supporting rib extending in the height direction is arranged on the supporting surface, and the second supporting rib is supported on the surface of the sliding block facing the connecting seat.
[0016] Preferably, a mounting groove is provided on the end surface of the connecting seat, the connecting arm is inserted into the mounting groove, and the connecting arm and the connecting seat are fixedly connected together by a screw extending in the height direction.
[0017] Preferably, the headrest also includes two side wing panels, which are respectively combined with two sides of the flexible support pad, and the two side wing panels are respectively pivoted to two sides of the lifting seat through a damper so that the side wing panels can rotate relative to the lifting seat and remain fixed with the lifting seat after rotating to a predetermined position.
[0018] A seat comprises the above-mentioned seat headrest adjustment mechanism.
[0019] Compared with the prior art, the beneficial effects of the present invention are:
[0020] The utility model discloses a headrest that is provided with a plurality of movable parts, and a plurality of movable parts are provided with a plurality of movable parts, and a plurality of movable parts are provided with a plurality of movable parts, and a plurality of movable parts are provided with a plurality of movable parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the structure of the utility model;
[0022] Figure 2 It is a cross-sectional view of the utility model;
[0023] Figure 3 for Figure 1 Schematic diagram of the assembly of the middle connecting piece and the supporting back plate;
[0024] Figure 4 for Figure 3 A cross-sectional view of the middle connector;
[0025] Figure 5 for Figure 1 Schematic diagram of the assembly of the middle pad and the supporting back plate;
[0026] Figure 6 for Figure 1 Schematic diagram of the assembly of the middle side wing panel and the lifting seat. DETAILED DESCRIPTION
[0027] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0028] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.
[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0030] like Figure 1 , 2, 3, 4, and 5 show a seat headrest adjustment mechanism of the utility model, which includes a headrest, a connecting seat 30, and a connecting piece 40. The headrest includes a lifting seat 10 and a flexible support pad 20. The flexible support pad 20 is connected to the front side of the lifting seat 10. When the seat is in use, the flexible support pad 20 contacts the head and neck of the human body to ensure comfort. The connecting seat 30 can be installed on the backrest of the seat. The lifting seat 10 is provided with a slide groove 112 extending in the height direction (i.e., the Z direction in the figure) on one side facing the flexible support pad 20, and an avoidance groove 113 extending from the bottom surface of the slide groove 112 to the side of the lifting seat 10 away from the flexible support pad 20. The width of the avoidance groove 113 is narrower than that of the slide groove 112. Therefore, a support surface 114 is formed on the bottom surface of the slide groove 112 between the side edge of the avoidance groove 113 and the side wall of the slide groove 112. The avoidance groove 113 is arranged in the middle of the width direction of the slide groove 112, and then a supporting surface 114 is formed on both sides of the avoidance groove 113; the connecting member 40 includes a slider 41 and a connecting arm 42, the slider 41 is embedded in the slide groove 112 and can slide along the extension direction of the slide groove 112, that is, the slider 41 can slide relative to the lifting seat 10 along the Z direction, the slider 41 includes a back side 411 away from the flexible support pad 20, the connecting arm 42 is integrally connected to the slider 41 and extends from the back side 411 in the direction away from the flexible support pad 20, the width of the connecting arm 42 is less than the width of the slider 41, so that a certain distance is formed between the side edge of the connecting arm 42 and the side edge of the back side 411, after the slider 41 is embedded in the slide groove 112, the connecting arm 42 can pass through the avoidance groove 113, and the back side 411 of the slider 41 can be abutted against the supporting surface 114, and the connecting arm 42 is connected to the lifting seat after passing through the avoidance groove 113. 10 is connected to the connecting seat 30 at the rear side of the lifting seat 10. After the connecting arm 42 is assembled to the connecting seat 30, the end face 301 of the connecting seat 30 abuts against the side of the lifting seat 10 away from the flexible support pad 20, and the slider 41 abuts against the support surface 114, that is, the back side 411 of the slider 41 located on both sides of the connecting arm 42 abuts against the two support surfaces 114 respectively, thereby making the back side 411 of the slider 41 and the end face 301 of the connecting seat 30 abut against the two sides of the lifting seat 10 respectively. A locking assembly is provided between the slider 41 and the side wall of the slide groove 112, and the locking assembly is used to lock the slider 41 to the side wall of the slide groove 112 after the slider 41 slides to a predetermined position along the slide groove 112 along the Z direction.
[0031] In the present invention, the connecting member 40 is connected to the end surface 301 of the connecting seat 30, and the slider 41 on the connecting member 40 is slidably embedded in the slide groove 112 on the lifting seat 10 away from the side of the connecting seat 30. The slider 41 slides inside the slide groove 112 to realize the lifting seat 10 relative to the connecting seat 30, so as to achieve the purpose of adjusting the upper and lower heights of the headrest, and the back side 411 of the slider 41 and the end surface 301 of the connecting seat 30 are used to clamp the lifting seat 10, so that the slider 41 can always slide along the extension direction of the slide groove 112 without deviation; the human head and neck are aligned with the lifting seat 10. The pressure applied by the flexible support pad 20 is transmitted to the connecting seat 30 via the lifting seat 10, and will not affect the up and down movement of the slider 41 in the slide groove 112, thereby solving the problem of easy failure of the adjustment mechanism caused by the compression of the head and neck of the human body in the prior art; in addition, after the connecting member 40 is attached to the connecting seat 30, the lifting seat 10 is placed between the slider 41 of the connecting member 40 and the end surface 301 of the connecting seat 30, which can play a better guiding role in the sliding of the slider 41 in the slide groove 112, thereby improving the smoothness of the up and down adjustment of the headrest.
[0032] See also Figure 4 As shown, in a preferred embodiment, the locking assembly includes a plurality of slots 1111 arranged on the two side walls of the slide 112, and two elastic locking members, the two elastic locking members are respectively located on the two sides of the slider 41, and the two elastic locking members are respectively locked in the corresponding slots 1111 on the two side walls of the slide 112. For example, a mounting hole 45 can be respectively provided on both sides of the slider 41, the elastic locking member includes a shell 412, a spring 414 and a locking steel ball 43, the spring 414 and the locking steel ball 43 are installed inside the shell 412, and the shell 412 is installed in the mounting hole 45 so that the elastic locking member is located in the mounting hole 45 as a whole, and the elastic stress of the spring 414 always pushes the locking steel ball 43 toward the opening of the mounting hole 45, so that the locking steel ball 43 is placed at the opening of the mounting hole 45. A portion of the locking steel ball 43 protrudes from the opening of the mounting hole 45. When the slider 41 is adjusted to an appropriate position, the portion of the locking steel ball 43 protruding from the mounting hole 45 is embedded in the locking groove 1111 on the side wall of the slide groove 112, so that the slider 41 and the lifting seat 10 remain relatively fixed. When the height of the lifting seat 10 needs to be adjusted, the lifting seat 10 is pushed along the Z direction, and the protrusions formed between adjacent locking grooves 1111 squeeze the locking steel ball 43. The locking steel ball 43 shrinks toward the inside of the shell 412 and squeezes the spring 414. At this time, the slider 41 slides along the slide groove 112. When the lifting seat 10 is adjusted to a suitable height, the locking steel ball 43 protrudes from the opening of the mounting hole 45 again under the elastic stress of the spring 414 and is embedded in the corresponding locking groove 1111, thereby locking the slider 41 and the lifting seat 10.
[0033] It should be noted that in other embodiments, the locking assembly may also adopt other structural forms. For example, the elastic locking member may be a spring sheet arranged on the side of the slider 41, and the spring sheet is inserted into the slot 1111 at different height positions to lock the slider 41 and the lifting seat 10. When adjustment is required, the lifting seat 10 is pushed along the Z direction to squeeze and deform the spring sheet. After the lifting seat 10 is adjusted to the required height, the spring sheet rebounds and is inserted into the slot 1111 at the corresponding position. In other embodiments, a slot may be arranged on the side of the slider 41, and a plurality of elastic locking members arranged along the extension direction of the slot 112 may be arranged on the side of the slot 112. Similarly, when the lifting seat 10 is at different height positions, the slider 41 and the lifting seat 10 can be locked.
[0034] In another preferred embodiment, the lifting seat 10 includes a supporting back plate 11, and the supporting back plate 11 includes a first surface 1101 facing the flexible support pad 20, and a second surface 1102 away from the flexible support pad 20. Two convex ribs 111 extending in the height direction are arranged on the first surface 1101, and the two convex ribs 111 are arranged at a certain distance. In this way, the two convex ribs 111 and the first surface 1101 are used to jointly enclose the above-mentioned slide groove 112, and the portion of the first surface 1101 located between the two convex ribs 111 forms the bottom surface of the slide groove 112. Two convex ribs 111 are arranged on the surface 1101 to enclose a slide groove 112, so that the slide groove 112 can have a sufficient depth to accommodate the slider 41. At the same time, the convex rib 111 can be arranged to have a larger width. The convex rib 111 with a larger width can better support the slider 41 from the side of the slider 41 and is not easy to deform. At the same time, a groove 1111 with sufficient depth can be opened on the surfaces where the two convex ribs 111 are opposite to each other (i.e., the side walls of the slide groove 112) to ensure that the positioning steel ball 43 can better limit the position of the slider 41 with the groove 1111. The lifting seat 10 also includes a cover plate 13 fixed on the support back plate 11. The cover plate 13 covers the slide groove 112 and forms a shell with the support back plate 11. The slider 41 is located inside the shell formed by the cover plate 13 and the support back plate 11, which protects the slider 41. At the same time, an attachment plane 131 is formed on the side of the cover plate 13 away from the support back plate 11. That is to say, the cover plate 13 forms a flat attachment plane 131 on the side of the lifting seat 10 facing the flexible support pad 20, so that the lifting seat 10 can be connected to the flexible material of the flexible support pad 20 by bonding, thereby facilitating the assembly of the entire headrest.
[0035] See also Figure 5As shown, a pad 12 is also fixedly connected to the support back plate 11, and the pad 12 is detachably fixed to the support back plate 11. Specifically, a plurality of elastic buckles 121 can be provided on the pad 12, and the elastic buckles 121 are inserted into the holes of the support back plate 11. The pad 12 is clamped on the support back plate 11 by the elastic buckles 121, and the pad 12 can also be detachably fixed to the support back plate 11 by screws. The pad 12 covers the second surface 1102 of the support back plate 11, so that the pad 12 contacts and cooperates with the end surface 301 of the connecting seat 30. A groove 122 extending in the height direction is provided on the pad 12, and a first supporting rib 302 is provided on the end surface 301 of the connecting seat 30. The first supporting rib 302 is embedded in the groove 122. The pad 12 is fixed to the support back plate 11 in a detachable manner, so that the end surface 301 of the connecting seat 30 contacts the pad 12. The pad 12 is used to protect the support back plate 11, so as to prevent the connecting seat 30 from causing wear to the support back plate 11 when the lifting seat 10 slides up and down. After being used for a long time, a new pad 12 can be replaced to ensure that there is a certain degree of compression between the end surface 301 of the connecting seat 30 and the pad 12, so as to prevent the slider 41 from swinging when sliding inside the slide groove 112. The first supporting rib 302 cooperates with the groove 122 to guide the up and down movement of the lifting seat 10 relative to the connecting seat 30. At the same time, the first supporting rib 302 can reduce the contact area between the connecting seat 30 and the lifting seat 10, and reduce the friction resistance generated by the connecting seat 30 to the lifting seat 10. In this way, the external force required for adjusting the height position of the headrest is reduced, thereby improving convenience.
[0036] See also Figure 3 As shown, a second supporting rib 1141 extending in the height direction is provided on the above-mentioned supporting surface 114, and the second supporting rib 1141 is supported on the back side 411 of the slider 41. The second supporting rib 1141 is in contact and cooperation with the back side 411 of the slider 41, thereby reducing the contact area between the supporting back plate 11 and the slider 41, reducing the friction resistance generated by the connecting member 40 on the lifting seat 10, and then reducing the external force required for adjusting the height position of the headrest, thereby improving convenience.
[0037] like Figure 1 , 2As shown, a mounting groove 31 is provided on the end surface 301 of the connecting seat 30, and the connecting arm 42 is inserted into the mounting groove 31 after passing through the avoidance groove 113. A screw 44 extending along the height direction is used to cross the connecting seat 30 and the connecting arm 42 from bottom to top to fix the connecting arm 42 and the connecting seat 30 together. During assembly, the slider 41 is placed in the slide groove 112, and then the cover plate 13 and the pad 12 are installed on the supporting back plate 11, and the connecting arm 42 is inserted into the mounting groove 31, so that the screw hole on the connecting arm 42 is aligned with the screw hole on the connecting seat 30, and the screw 44 is inserted from bottom to top to complete the assembly of the lifting seat 10 and the connecting seat 30.
[0038] See also Figure 6 The headrest of the utility model also includes two side wing plates 14, which are respectively combined on both sides of the flexible support pad 20, and the side wing plates 14 are respectively located on both sides of the lifting seat 10. The side wing plates 14 are pivoted on the lifting seat 10 through the damper 15, and the side wing plates 14 can rotate relative to the lifting seat 10 through the damper 15. At the same time, the damping effect provided by the damper 15 can keep the side wing plates 14 relatively fixed with the lifting seat 10 after rotating to a predetermined position. Specifically, a first connecting ear 141 can be set on the side wing plate 14, and a second connecting ear 16 can be set on the side of the supporting back plate 11 of the lifting seat 10. The first connecting ear 141 and the second connecting ear 16 are connected through the damper 15 so that the two can rotate relative to each other. By setting the two side wing plates 14, the side wing plates 14 drive the parts on both sides of the flexible support pad 20 to be folded to the required angle, so that the flexible support pad 20 can support the position of the user's head and neck on both sides, thereby improving comfort.
[0039] It should be pointed out that the seat of the present invention includes the above-mentioned seat headrest adjustment mechanism, and other structures of the seat are the same as those in the prior art and will not be described in detail here.
[0040] Finally, it should be noted that the above-mentioned implementation modes are only optional embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.
Claims
1. Seat headrest adjustment mechanism, characterized in that: Including a headrest, a connecting seat and a connecting piece; The headrest includes a lifting seat, a flexible support pad connected to the lifting seat, a slide groove extending in the height direction is arranged on one side of the lifting seat facing the flexible support pad, and an avoidance groove extending from the bottom surface of the slide groove to the side surface of the lifting seat away from the flexible support pad, and a portion of the bottom surface of the slide groove between the side edge of the avoidance groove and the side wall of the slide groove forms a support surface; The connecting member includes a slider embedded in the slide groove and slidable along the extension direction of the slide groove, and a connecting arm extending from the slider in a direction away from the flexible support pad and passing through the avoidance slot, and the connecting arm is attached to the connecting seat after passing through the avoidance slot, so that the slider abuts against the support surface, and the connecting seat abuts against the side of the lifting seat away from the flexible support pad; A locking assembly is arranged between the slider and the side wall of the slide slot, and the locking assembly is used to lock the slider to the side wall of the slide slot after the slider slides to a predetermined position along the extending direction of the slide slot.
2. The seat headrest adjustment mechanism according to claim 1, characterized in that: The locking assembly comprises a plurality of slots arranged on the two side walls of the slide slot, and two elastic locking pieces respectively arranged on the two sides of the slide block, and the two elastic locking pieces are respectively locked in the corresponding slots on the two side walls of the slide slot.
3. The seat headrest adjustment mechanism according to claim 2, characterized in that: A mounting hole is respectively arranged on both side surfaces of the slider, and the elastic locking member includes a shell, a spring located in the shell and a locking steel ball. The shell is fixedly connected in the mounting hole, and the spring is used to push the locking steel ball toward the opening of the mounting hole so that a part of the locking steel ball protrudes from the opening of the mounting hole.
4. The seat headrest adjustment mechanism according to claim 1, characterized in that: The lifting seat includes a supporting back plate, which includes a first surface facing the flexible supporting pad and a second surface away from the flexible supporting pad. Two convex ribs extending along the height direction are arranged on the first surface. The slide groove is surrounded by the two convex ribs and the first surface. The part of the first surface located between the two convex ribs forms the bottom surface of the slide groove.
5. The seat headrest adjustment mechanism according to claim 4, characterized in that: The lifting seat also includes a cover plate fixed on the supporting back plate and covering the slide groove, and a side of the cover plate facing away from the supporting back plate forms an attachment plane for connecting with the flexible supporting pad.
6. The seat headrest adjustment mechanism according to claim 4, characterized in that: A pad is fixedly connected to the support back plate in a detachable manner. The pad covers the second surface of the support back plate and contacts and cooperates with the end surface of the connecting seat. A groove extending along the height direction is provided on the pad, and a first supporting rib embedded in the groove is arranged on the end surface of the connecting seat.
7. The seat headrest adjustment mechanism according to claim 1, characterized in that: A second supporting rib extending in the height direction is arranged on the supporting surface, and the second supporting rib is supported on the surface of the sliding block facing the connecting seat.
8. The seat headrest adjustment mechanism according to claim 1, characterized in that: An installation groove is arranged on the end surface of the connecting seat, the connecting arm is inserted into the installation groove, and the connecting arm and the connecting seat are fixedly connected together by a screw extending along the height direction.
9. The seat headrest adjustment mechanism according to claim 1, characterized in that: The headrest also includes two side wing plates, which are respectively combined with the two sides of the flexible support pad, and the two side wing plates are respectively pivoted to the two sides of the lifting seat through a damper so that the side wing plates can rotate relative to the lifting seat and remain fixed with the lifting seat after rotating to a predetermined position.
10. A seat, characterized in that: The invention comprises the seat headrest adjustment mechanism as described in any one of claims 1 to 9.