Headrest device

Abstract

The utility model relates to a headrest device which comprises a supporting frame, a headrest driving rod and a headrest mounting structure, the supporting frame comprises a supporting piece cross beam and two same supporting frame side plates, the supporting piece cross beam and the two same supporting frame side plates are fixed together, and the supporting piece cross beam and the two same supporting frame side plates are fixed to the two sides of the supporting frame cross beam. And the side plate mounting grooves and the side plate upper mounting holes are matched with a seat backrest. The supporting frame side plate is further provided with a side plate lower mounting hole, and the side plate lower mounting hole is located in the lower portion of the supporting frame side plate and matched with the seat backrest. The headrest device and the seat backrest are convenient to install and maintain, the basic structure only needs to fix the lower portion of the headrest device through the side plate installation grooves, and the upper portion of the headrest device is fixed through the side plate upper installation holes; and the strengthening structure can be used only by fixing the lower part of the headrest device and the seat backrest through the side plate lower mounting holes.

Description

Technical Field

[0001] The present application relates to a headrest device, which is mainly suitable for supporting and adjusting the posture of a headrest component in a seat. Background Art

[0002] The installation of the headrest device support frame in the prior art is relatively troublesome. Before the two sides are fixed, the operator must hold the support frame with one hand and tighten the screws and nuts with the other hand to fix it, which is very inconvenient. In addition, maintenance and replacement are also relatively troublesome. Summary of the invention

[0003] The technical problem solved by the present application is to provide a headrest device which is relatively easy to install and maintain.

[0004] The technical solution adopted by the present application to solve the above-mentioned technical problems is: a headrest device, including a support frame, a headrest drive rod, and a headrest mounting structure, the support frame including a support member crossbeam fixed together and two identical support frame side panels fixed on both sides of the support frame crossbeam. The design feature of the present application is: at least side panel mounting grooves and side panel mounting holes are provided on the support frame side panels, and the side panel mounting grooves and side panel mounting holes cooperate with the seat back; when installing the present application, it is only necessary to insert the side panel mounting grooves into the corresponding seat back panels from top to bottom to achieve the lower positioning support of the headrest device, so that both hands can be freed, and the support frame side panels are fixed to the seat back with bolts through the mounting holes on the side panels, thereby improving the convenience of installation and maintenance.

[0005] Furthermore, the headrest mounting structure described in the present application includes a headrest mounting plate, a headrest link 1, a headrest link 2, a headrest link 3, and a headrest link 4. The headrest mounting plate is hinged to one end of the headrest link 1 and the headrest link 2, respectively. The other end of the headrest link 1 is hinged to one end of the headrest link 3. The lower middle part of the headrest link 2 is hinged to the headrest link 3 through the link 2-link 3 articulation axis, the other end of the headrest link 2 is hinged to one end of the headrest link 4, the other end of the headrest link 3 is hinged to the side plate of the support frame through the link 3 side plate articulation axis, the middle part of the headrest link 4 is hinged to the headrest driving rod through the drive rod link 4 articulation axis, and the other end of the headrest link 4 is hinged to the side plate of the support frame through the link 4 side plate articulation axis.

[0006] The support frame side panel described in the present application is also provided with a side panel lower mounting hole, which is located at the lower part of the support frame side panel and cooperates with the seat back. The lower part of the support frame side panel and the seat back can be further fixed by bolts to improve installation reliability.

[0007] The lower part of the side plate of the support frame is bent backwards, and the side plate mounting groove is inclined forward and downward, so as to facilitate the positioning and support of the headrest device.

[0008] Compared with the prior art, the present application has the following advantages and effects: the installation and maintenance of the headrest device and the seat back are relatively convenient, and the basic structure only needs to use the side panel mounting groove to fix the lower part of the headrest device and the mounting hole on the side panel to fix the upper part of the headrest device; the reinforced structure also only needs to fix the lower part of the headrest device to the seat back through the mounting hole under the side panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of a three-dimensional application of an embodiment of the present application in an unopened posture.

[0010] Figure 2 It is a side schematic diagram of an embodiment of the present application in an unopened (initial) posture.

[0011] Figure 3 yes Figure 2 Schematic diagram of the left side.

[0012] Figure 4 It is a three-dimensional application schematic diagram of an embodiment of the present application in an open posture.

[0013] Figure 5 It is a side schematic diagram of an embodiment of the present application in an open posture.

[0014] Figure 6 yes Figure 5 Schematic diagram of the left side.

[0015] In the figure: support frame 1, support frame cross beam 11, support frame side plate 12, side plate mounting groove 121, side plate upper mounting hole 122, side plate lower mounting hole 123, headrest drive rod 2, drive rod connecting rod four hinge shaft 21, headrest mounting structure 3, headrest mounting plate 31, headrest connecting rod one 32, headrest connecting rod two 33, connecting rod three connecting rod four hinge shaft 331, headrest connecting rod three 34, connecting rod three side plate hinge shaft 341, headrest connecting rod four 35, connecting rod four side plate hinge shaft 351, drive device 4. DETAILED DESCRIPTION

[0016] The present application is further described in detail below with reference to the accompanying drawings and examples. The following examples are explanations of the present application and the present application is not limited to the following examples. Figure 2 , Figure 5 The left side of Figure 2 , Figure 5 on the right side.

[0017] See also Figure 1 to Figure 6The embodiment of the present application is a headrest device, including a support frame 1, a headrest drive rod 2, and a headrest mounting structure 3. The support frame 1 includes a support member cross beam 11 fixed together and two identical support frame side panels 12 fixed on both sides of the support frame cross beam 11. The support frame 1 is installed on a seat back (not shown in the figure). The design feature of the present application is that at least a side panel mounting groove 121 and a side panel mounting hole 122 are provided on the support frame side panel 12, and the side panel mounting groove 121 and the side panel mounting hole 122 cooperate with the seat back; when installing the embodiment of the present application, it is only necessary to insert the side panel mounting groove 121 from top to bottom into the corresponding seat back panel, so that both hands can be freed, and the support frame side panel 12 can be fixed to the seat back with bolts through the side panel mounting holes 122, thereby improving the convenience of installation and maintenance.

[0018] Further, the headrest mounting structure 3 of the present application includes a headrest mounting plate 31, a headrest connecting rod 1 32, a headrest connecting rod 2 33, a headrest connecting rod 34, and a headrest connecting rod 4 35. The headrest mounting plate 31 is hinged to one end of the headrest connecting rod 1 32 and the headrest connecting rod 2 33 respectively, and the other end of the headrest connecting rod 1 32 is hinged to one end of the headrest connecting rod 3 34. The lower part of the headrest connecting rod 2 33 is connected to the connecting rod 2 and the connecting rod 3 by the hinge shaft 33. 1 is hinged to the headrest link three 34, the other end of the headrest link two 33 is hinged to one end of the headrest link four 35, the other end of the headrest link three 34 is hinged to the support frame side plate 12 through the link three side plate hinge shaft 341, the middle part of the headrest link four 35 is hinged to the headrest driving rod 2 through the drive rod link four hinge shaft 21, and the other end of the headrest link four 35 is hinged to the support frame side plate 12 through the link four side plate hinge shaft 351.

[0019] The support frame side plate 12 described in the present application is also provided with a side plate lower mounting hole 123, which is located at the lower part of the support frame side plate 12. The lower part of the support frame side plate 12 can be further fixed to the seat back by bolts to improve installation reliability.

[0020] The lower portion of the support frame side plate 12 described in the present application is bent backward, and the side plate mounting groove 121 is inclined forward and downward, so as to facilitate the positioning and support of the headrest device.

[0021] The specific process of this application is as follows:

[0022] This embodiment is in Figure 1 In the initial state shown, one end of the driving device 4 is hinged to the support frame crossbeam 11, and the other end is hinged to the headrest driving rod 2. The operator controls the driving device 4 to work through the electric control switch, and the driving device 4 drives one end of the headrest connecting rod 4 35 to move upward, driving the headrest connecting rod 1 32 and the headrest connecting rod 2 33 to open upward to Figure 5 Shown in open state.

[0023] When the operator wants to reset (return to the initial state), the operator controls the drive device 4 to return to the initial operation through the electric control switch, and the drive device 4 drives one end of the headrest connecting rod 4 35 to move downward, driving the headrest connecting rod 1 32 and the headrest connecting rod 2 33 to move downward to restore to Figure 1 Initial state shown.

[0024] The driving device described in the present application may adopt an electric push rod or a cylinder in the prior art.

Claims

1. A headrest device, comprising a support frame, a headrest drive rod, and a headrest mounting structure, wherein the support frame comprises a support member crossbeam fixed together and two identical support frame side plates fixed on both sides of the support frame crossbeam, wherein: The support frame side panels are provided with side panel mounting grooves and side panel mounting holes, and the side panel mounting grooves and side panel mounting holes are matched with the seat back.

2. The headrest device according to claim 1, characterized in that: The headrest mounting structure includes a headrest mounting plate, a headrest connecting rod 1, a headrest connecting rod 2, a headrest connecting rod 3 and a headrest connecting rod 4. The headrest mounting plate is hinged to one end of the headrest connecting rod 1 and the headrest connecting rod 2 respectively, the other end of the headrest connecting rod 1 is hinged to one end of the headrest connecting rod 3, the lower middle part of the headrest connecting rod 2 is hinged to the headrest connecting rod 3 through the connecting rod 2-connecting rod 3 hinge axis, the other end of the headrest connecting rod 2 is hinged to one end of the headrest connecting rod 4, the other end of the headrest connecting rod 3 is hinged to the side plate of the support frame through the connecting rod 3 side plate hinge axis, the middle part of the headrest connecting rod 4 is hinged to the headrest driving rod through the driving rod connecting rod 4 hinge axis, and the other end of the headrest connecting rod 4 is hinged to the side plate of the support frame through the connecting rod 4 side plate hinge axis.

3. The headrest device according to claim 1, characterized in that: The support frame side plate is also provided with a side plate lower mounting hole, which is located at the lower part of the support frame side plate and cooperates with the seat back.

4. The headrest device according to claim 1, characterized in that: The lower part of the side plate of the support frame is bent backward, and the side plate mounting groove is inclined forward and downward.

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