Vehicle single-column headrest height adjustment device

Abstract

The present disclosure relates to a single-column type headrest height adjustment device for a vehicle, including a headrest installed on a single column mounted to a seat back frame in a height-adjustable manner, and including a lever at one side of the headrest, so that the headrest can be easily adjusted to a desired height only by a flip operation for unlocking the lever.

Description

Technical Field

[0001] This disclosure relates to a vehicle mono-post headrest height adjustment device, and more specifically, to a vehicle mono-post headrest height adjustment device that allows for easy adjustment of the height of the vehicle mono-post headrest solely through the operation of a lever. Background Technology

[0002] As is well known, vehicle seats are constructed to include: a seat cushion for seating the lower body of a passenger; a seat back for the passenger's lumbar and back support; and a headrest that is height-adjustable and mounted on the upper part of the seat back.

[0003] like Figure 1 As shown, a pair of stays 12, height-adjustable and inserted into the seat back frame 20, are mounted at the bottom of the headrest 10. A pole guide device 30 is mounted at the upper end of the seat back to guide the raising and lowering of the stays 12.

[0004] In addition, each strut 12 has multiple locking slots 14, and the strut guide device 30 is equipped with a push-pull locking rod 32.

[0005] Therefore, by pulling the locking lever 32 to move the support rod 12 upward to the desired height, and then pushing the locking lever 32 to fasten it into or engage with one of the multiple locking slots 14 in the support rod 12, the height of the support rod 12, i.e. the height of the headrest 10, can be adjusted to the desired height.

[0006] This type of headrest design and its height adjustment mechanism are commonly used, but they are not suitable for the design and conception of seats in future vehicles such as autonomous vehicles. Therefore, a new paradigm of headrest design is needed, such as a single-pillar headrest.

[0007] The information disclosed in this background section is provided solely to enhance understanding of the background of this disclosure. Therefore, this background section may contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0008] A new height adjustment device is needed for a single-column headrest.

[0009] This disclosure is designed with the above considerations in mind. The purpose of this disclosure is to provide a single-pillar headrest height adjustment device for vehicles, which allows the headrest to be height-adjustably mounted on a single pillar attached to a seat back frame. The device may include a rod mounted on one side of the headrest, thereby allowing the headrest to be easily adjusted to the desired height simply by a flip operation to unlock the rod.

[0010] To achieve this objective, this disclosure provides a single-pillar headrest height adjustment device for vehicles. The device includes: a single pillar configured to have a plurality of locking holes formed at predetermined intervals along a vertical direction and mounted on a seat back frame; a front cover that is vertically and retractably fastened to the single pillar; a rod that is flip-mounted on one side of the front cover; a locking device connected to the rod and mounted on the rear surface of the front cover, the locking device being locked and fastened to any one of the plurality of locking holes of the single pillar, or being unlocked by being released from one of the locking holes of the single pillar in conjunction with a flipping operation of the rod; a middle cover covering the locking device and the single pillar and mounted on the rear surface of the front cover; and a rear cover covering the middle cover and assembled to the rear surface of the front cover.

[0011] The locking device according to an embodiment of the present disclosure includes: a shaft that contacts the interior of a rod and is laterally movable on the rear surface of a front cover; a locking plate that is configured as a flat structure having a guide hole formed through the locking plate, the locking plate being connected to the inner end of the shaft and laterally movable on the rear surface of the front cover; and a locking bracket that is configured to have a locking end formed on the rear surface of the locking bracket that is inserted into a locking hole of a single rod and a locking pin formed on the upper surface of the locking bracket that is inserted into the guide hole of the locking plate, and is rotatably fastened to the rear surface of the front cover.

[0012] The locking device according to an embodiment of the present disclosure further includes: a rotating shaft formed at the lower end of the locking bracket and connected to the rear surface of the front cover; and a return spring mounted on the rotating shaft to provide an elastic restoring force when the locking bracket rotates.

[0013] In one embodiment, the lever consists of a user-operated lever and a flipping force transmission lever, the user-operated lever being flipped by the user, and the flipping force transmission lever being fastened to the user-operated lever by a hinge pin to contact the outer surface of the shaft.

[0014] Therefore, when the lever is not in operation, the locking pin is located at the innermost position in the inclined range of the guide hole, and the locking end of the locking bracket is locked by the elastic restoring force of the return spring and inserted into a locking hole of the single column.

[0015] On the other hand, when the rod is flipped and thus pushes the locking plate inward while pushing the shaft inward through the rod, the locking pin moves along the curved surface of the guide hole to the outermost position in the inclined range of the guide hole, and the locking bracket rotates about the rotation axis, thereby unlocking the locking end by releasing it from one locking hole of the single column.

[0016] The locking device according to another embodiment of the present disclosure includes: a cable connected to the interior of a rod; a locking plate configured as a flat structure having a guide hole with an inclined surface formed through the locking plate, the locking plate being connected to the inner end of the cable and laterally movable on the rear surface of the front cover; and a locking bracket configured as having a locking end formed on the rear surface of the locking bracket that is inserted into a locking hole of a single rod and a locking pin formed on the upper surface of the locking bracket that is inserted into the guide hole of the locking plate, and being rotatably fastened to the rear surface of the front cover.

[0017] The locking device according to another embodiment of the present disclosure further includes: a rotating shaft formed at the lower end of the locking bracket and connected to the rear surface of the front cover; and a return spring mounted on the rotating shaft to provide an elastic restoring force when the locking bracket rotates.

[0018] Therefore, when the lever is not in operation, the locking pin is located at the innermost position in the inclined range of the guide hole, and the locking end of the locking bracket is locked by the elastic restoring force of the return spring and inserted into a locking hole of the single column.

[0019] On the other hand, when the lever is pulled and thus the cable connected to the lever is pulled and the locking plate is pulled outward, the locking pin moves to the outermost position in the inclined section of the guide hole, and the locking bracket rotates about the rotation axis, thereby unlocking the locking segment by releasing it from one locking hole of the single column.

[0020] In one embodiment, a plurality of guide rollers are mounted on the rear surface of the front cover, the plurality of guide rollers being able to roll into contact with the two side surfaces of the single column.

[0021] In one embodiment, the rear surface of the back cover is further attached with a back cover for decorative purposes.

[0022] In one embodiment, a pad covered by the cover is attached to the front surface of the front cover.

[0023] Through the above construction, this disclosure provides the following effects.

[0024] Firstly, a single-column headrest can be provided, wherein the headrest is height-adjustably mounted on a single column that is mounted on the seat back frame.

[0025] Secondly, the rod can be installed on one side of the headrest, and the headrest can be easily adjusted to the desired height along a single column simply by unlocking the flip operation of the rod.

[0026] It should be understood that, as used herein, the terms “vehicle” or “of a vehicle” or other similar terms generally include motor vehicles, such as: passenger cars including sport utility vehicles (SUVs), buses, trucks, and various commercial vehicles; water vehicles including various ships and vessels; aircraft, etc., as well as vehicles such as hybrid vehicles, electric vehicles, plug-in hybrid vehicles, hydrogen-powered vehicles, and other vehicles using alternative fuels (e.g., fuels derived from resources other than petroleum). As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, such as a gasoline-powered and an electric-powered vehicle.

[0027] The above and other features of this disclosure are discussed below. Attached Figure Description

[0028] The above and other features of this disclosure will now be described in detail with reference to certain examples of this disclosure shown in the accompanying drawings, which are given hereinafter by way of example only and are not intended to limit this disclosure, and wherein:

[0029] Figure 1 This is a schematic diagram showing a traditional headrest height adjustment device.

[0030] Figure 2 and Figure 3 This is a perspective view showing the appearance of a single-pillar headrest for vehicles according to this disclosure.

[0031] Figure 4 This is an exploded perspective view showing a single-pillar headrest for vehicles and a single-pillar headrest height adjustment device for vehicles according to the present disclosure.

[0032] Figure 5A and Figure 5B This is a rear view showing a single-pillar headrest height adjustment device for vehicles according to the present disclosure.

[0033] Figure 6 This is a front perspective view showing the locking plate and locking bracket in the structure of the single-column headrest height adjustment device for vehicles according to this disclosure.

[0034] Figure 7 This is a top perspective view showing the locking plate and locking bracket in the structure of the single-column headrest height adjustment device for vehicles according to this disclosure in the state before operation.

[0035] Figure 8 This is a plan view showing the flipped state of the rod in the structure of the single-pillar headrest height adjustment device for vehicles according to this disclosure.

[0036] Figure 9 This is a top perspective view showing the locking plate and locking bracket in the structure of the single-column headrest height adjustment device for vehicles according to this disclosure in the state after operation.

[0037] Figure 10 This is a cross-sectional view showing the locking plate and locking bracket in the structure of the single-column headrest height adjustment device for vehicles according to this disclosure before and after operation.

[0038] Figure 11 This is a perspective view showing the state before operation of another embodiment of the single-column headrest height adjustment device for vehicles according to the present disclosure.

[0039] Figure 12 This is a plan view showing the state before operation of another embodiment of the single-pillar headrest height adjustment device for vehicles according to the present disclosure.

[0040] Figure 13 This is a cross-sectional view showing the state before operation of another embodiment of the single-column headrest height adjustment device for vehicles according to the present disclosure.

[0041] Figure 14 This is a perspective view showing the state after operation of another embodiment of the single-pillar headrest height adjustment device for vehicles according to the present disclosure.

[0042] Figure 15 This is a plan view showing the state after operation of another embodiment of the single-column headrest height adjustment device for vehicles according to the present disclosure.

[0043] Figure 16 This is a cross-sectional view showing the state after operation of another embodiment of the single-column headrest height adjustment device for vehicles according to the present disclosure.

[0044] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present slightly simplified representations of various features illustrating the basic principles of this disclosure. Specific design features of this disclosure as disclosed herein will be determined by the specific intended application and usage environment, including, for example, specific dimensions, orientations, positions, and shapes.

[0045] In the accompanying drawings, reference numerals refer to the same or equivalent parts or elements of this disclosure in all drawings. Detailed Implementation

[0046] In the following, specific embodiments of the present disclosure are described in detail with reference to the accompanying drawings.

[0047] Figures 2 to 4 A single-pillar headrest for a vehicle and a single-pillar headrest height adjustment device for a vehicle are shown according to the present disclosure. Figure 5A and Figure 5B This is a rear view showing the front cover of the structure of the single-column headrest height adjustment device according to the present disclosure, viewed from the rear.

[0048] like Figures 2 to 4As shown, the single column 100 is installed on the seat back frame 200.

[0049] The front surface of the single column 100 has a plurality of locking holes 102 formed at predetermined intervals along the vertical direction. In this embodiment, the single column 100 has two adjacent vertical rows of locking holes.

[0050] Reference Figure 5B The front cover 110 and the middle cover 160 are assembled together, and the single pillar 100 is located between the front cover 110 and the middle cover 160.

[0051] In other words, with the front cover 110 being retractably secured to the single pillar 100, the middle cover 160 covers the single pillar 100 and is assembled to the front cover 110 by screws or the like.

[0052] To guide the lifting and lowering of the front cover 110, such as Figure 5A As shown, two pairs of guide rollers 112 are mounted on the rear surface of the front cover 110. The guide rollers 112 can roll in contact with the two side surfaces of the single column 100, that is, they can roll along the two side surfaces.

[0053] Therefore, when the front cover 110 is raised or lowered, the guide roller 112 performs a rolling motion along the two sides of the single column 100, so that the front cover can be raised or lowered easily.

[0054] The rod 120 is mounted on one side of the rear surface of the rear cover 170, which is located behind the front cover 110. The rod 120 can be flipped between two positions, i.e., flipped onto one side of the rear cover 170.

[0055] In one embodiment, such as Figure 8 As shown, lever 120 has a user operating lever 122 that is flipped by the user. Lever 120 also has a flipping force transmission lever 124 that is fastened to the user operating lever 122 by a hinge pin and contacts the outer surface of shaft 130 in the structure of the locking device.

[0056] Therefore, when the user flips the user control lever 122, the flipping force transmission lever 124 pushes the shaft 130 while rotating in the same direction.

[0057] Specifically, a locking device, including a shaft 130 linked to the rod 120, is mounted on the rear surface of the front cover 110.

[0058] The locking device can be configured as an operating mechanism mounted on the rear surface of the front cover 110. The locking device is configured to be locked and secured into one of the plurality of locking holes 102 of the monopillar 100, or to be unlocked by being released from one locking hole 102 of the monopillar 100 via a flipping operation of the lever 120. In this example, the locking device is configured to be locked and secured into two laterally adjacent locking holes 102, with one locking hole 102 in each of two adjacent columns on the monopillar 100.

[0059] The construction of the locking device according to embodiments of the present disclosure is described below.

[0060] First, the shaft 130, which is in contact with the flipping force transmission rod 124 of the rod 120, is laterally movable and disposed on the rear surface of the front cover 110.

[0061] In addition, a locking plate 140 connected to the inner end of the shaft 130 is laterally movable and disposed on the rear surface of the front cover 110.

[0062] like Figure 6 As shown, the locking plate 140 can be configured as a flat structure, wherein two or more curved guide holes 142 are formed through the locking plate. The through-hole shape of the guide holes 142 can be any shape, as long as it has an inclined shape, regardless of whether it is a straight line or a curve.

[0063] Furthermore, the locking bracket 150, which rotates during the linear movement of the locking plate 140, is rotatably fastened to the rear surface of the front cover 110.

[0064] like Figure 7 As shown, a locking end 152 is formed on the rear surface of the locking bracket 150, which is inserted into one of the locking holes 102 in each row of the single column 100. A locking pin 154 is formed on the upper surface of the locking bracket 150, which is inserted into the guide hole 142 of the locking plate 140.

[0065] Furthermore, a rotating shaft 156 is formed at the lower end of the locking bracket 150 and connected to the rear surface of the front cover 110. A return spring 158 for providing elastic restoring force when the locking bracket 150 rotates is inserted into and secured to the rotating shaft 156.

[0066] like Figure 5B As shown, the intermediate cover 160 is fastened to the rear surface of the front cover 110. The intermediate cover 160 covers the locking plate 140 and the locking bracket 150 in the structure of the locking device to prevent the locking plate 140 and the locking bracket 150 from disengaging.

[0067] Furthermore, the rear cover 170, which covers the shaft 130 and the intermediate cover 160, is fastened to the rear surface of the front cover 110. Therefore, as... Figure 3As shown, the rod 120 is rotatably positioned on one side of the rear surface of the rear cover 170.

[0068] In addition, such as Figure 2 As shown, a pad 190 is attached to the front surface of the front cover 110, and the pad 190 is covered by a cover that substantially contacts the passenger's head.

[0069] In one embodiment, the rear surface of the back cover 170 is further attached with a back cover 180 for decorative purposes.

[0070] The process of adjusting the height of the headrest performed by the locking device according to the embodiment is described below.

[0071] like Figure 7 and Figure 10 As shown, in the non-operated state (i.e., the state where the lever is not flipped), each locking pin 154 of the locking bracket 150 is located at the innermost position of the corresponding section of each guide hole 142 of the locking plate 140. Each locking end 152 of the locking bracket 150 is held in a locked state and inserted into the selected locking hole 102 of the single post 100 by the elastic restoring force of the return spring 158.

[0072] Therefore, the headrest, including the front cover 110, the middle cover 160, etc., remains in a fixed state.

[0073] On the other hand, when the user flips the lever 120 to adjust the height of the headrest, such as Figure 8 As shown, the flipping force transmission rod 124, which is fastened to the user operating lever 122 by a hinge pin, rotates to push the shaft 130 inward.

[0074] Subsequently, shaft 130 is pushed inward to push locking plate 140.

[0075] At the same time, such as Figure 9 As shown, each locking pin 154 of the locking bracket 150 moves along a corresponding curved or inclined surface of the corresponding guide hole 142 of the locking plate 140 to be located at the outermost position within the interval of the guide hole 142. The locking bracket 150 rotates about the rotation axis 156, thereby... Figure 10 As shown, each locking end 152 of the locking bracket 150 is unlocked by releasing from the corresponding locking hole 102 of the single post 100.

[0076] Therefore, users can adjust the headrest height to the desired height while moving it up or down.

[0077] When the headrest height is adjusted to the desired height and the lever 120 is released, each locking end 152 of the locking bracket 150 is locked again by the elastic restoring force of the return spring 158 and inserted into the selected locking hole 102 of the single column 100, thereby fixing the headrest at the desired height.

[0078] Reference Figures 11 to 16 The construction of a locking device according to another embodiment of the present disclosure is described below.

[0079] The locking device according to another embodiment of the present disclosure is characterized in that the rod 120 and the locking plate 140 are connected by a cable 132. A guide hole 146 with an inclined surface 144 is formed on the locking plate 140, and the locking pin 154 of the locking bracket 150 moves along the inclined surface 144.

[0080] The locking plate 140 is laterally movable and disposed on the rear surface of the front cover 110. For example... Figure 11 and Figure 12 As shown, one end of the locking plate 140 is connected to the inner end of the cable 132 extending from the rod 120. The locking plate 140 is configured as a flat structure, wherein a guide hole 146 with an inclined surface 144 is formed through the locking plate 140.

[0081] As described in the embodiment, the locking bracket 150 is configured to have a locking end 152 formed on the rear surface of the locking bracket 150, which is inserted into the locking hole 102 of the selected single column 100, and a locking pin 154 formed on the upper surface of the locking device 150, which is inserted into the guide hole 146 of the locking plate 140, so that the locking bracket 150 is rotatably fastened to the rear surface of the front cover 110.

[0082] Furthermore, as described in the embodiment, the lower end of the locking bracket 150 is formed with a rotating shaft 156 connected to the rear surface of the front cover 110. A return spring 158 for providing an elastic restoring force when the locking bracket 150 rotates is inserted into and secured to the rotating shaft 156.

[0083] The process of adjusting the height of the headrest performed by the locking device according to this embodiment is described below.

[0084] First, such as Figures 11 to 13 As shown, in the non-operated state (i.e., the state where the lever is not flipped), each locking pin 154 of the locking bracket 150 is located at the innermost position in the interval of the corresponding inclined surface 144 formed in the corresponding guide hole 146 of the locking plate 140. The locking end 152 of the locking bracket 150 is held in the locked and inserted into the locking hole 102 of the single post 100 by the elastic restoring force of the return spring 158.

[0085] Therefore, the headrest, including the front cover 110, the middle cover 160, etc., remains in a fixed state.

[0086] On the other hand, such as Figure 14 and Figure 15 As shown, when the user flips the lever 120 to adjust the height of the headrest, the cable 132 connected to the lever 120 is pulled, and then the cable 132 is pulled to pull the locking plate 140.

[0087] At the same time, such as Figure 14 and Figure 15 As shown, each locking pin 154 of the locking bracket 150 moves along a corresponding inclined surface 144 of the guide hole 146 of the locking plate 140 to be located at the outermost position within the interval of the guide hole 146. The locking bracket 150 rotates about the rotation axis 156, thereby... Figure 16 As shown, the locking end 152 of the locking bracket 150 is unlocked by releasing from the selected locking hole 102 of the single post 100.

[0088] Therefore, users can adjust the headrest height to the desired height while moving it up or down.

[0089] When the headrest height is adjusted to the desired height and the lever 120 is released, the locking end 152 of the locking bracket 150 is locked again by the elastic restoring force of the return spring 158 and inserted into the locking hole 102 of the single column 100, thereby fixing the headrest at the desired height.

[0090] The above embodiments may include only a single column of multiple locking holes 102, a locking end 152, a guide hole, and a locking pin 154. As described above, a single-post headrest that is height-adjustably mounted on a single post 100 mounted on a seat back frame 200 can be provided. In particular, the headrest can be easily adjusted to the desired height along the single post simply by flipping a lever 120 mounted on one side of the headrest to unlock it.

Claims

1. A single-column headrest height adjustment device for vehicles, comprising: A single column is configured to have multiple locking holes formed at predetermined intervals along the vertical direction and is mounted on the seat back frame; The front cover is retractably secured to the single pillar; The rod is foldably mounted on one side of the front cover; A locking device, connected to the rod and mounted on the rear surface of the front cover, is locked and secured to any one of the plurality of locking holes of the monopole, or is unlocked by being released from one of the locking holes of the monopole in conjunction with a flipping operation of the rod. The middle cover covers the locking plate and locking bracket of the locking device and the single column, and is mounted on the rear surface of the front cover; as well as The rear cover, which covers the middle cover, is assembled to the rear surface of the front cover. The locking device includes: The shaft contacts the interior of the rod and is laterally movable on the rear surface of the front cover; The locking plate is configured as a flat structure having a guide hole formed through it, the locking plate being connected to the inner end of the shaft and laterally movable on the rear surface of the front cover; and The locking bracket is configured to have a locking end formed on the rear surface of the locking bracket that is inserted into a locking hole of the single column, and a locking pin formed on the upper surface of the locking bracket that is inserted into a guide hole of the locking plate, and the locking bracket is rotatably fastened to the rear surface of the front cover.

2. The apparatus according to claim 1, wherein, The locking device further includes: A rotating shaft is formed at the lower end of the locking bracket and connected to the rear surface of the front cover; and A return spring, mounted on the rotating shaft, provides an elastic restoring force as the locking bracket rotates.

3. The apparatus according to claim 1, wherein, The lever consists of a user operating lever and a flipping force transmission lever. The user operating lever is flipped by the user, and the flipping force transmission lever is fastened to the user operating lever by a hinge pin to contact the outer surface of the shaft.

4. The apparatus according to claim 1, wherein, When the rod is not operated, the locking pin is located at the innermost position in the inclined range of the guide hole, and the locking end of the locking bracket is locked by the elastic restoring force of the return spring and inserted into a locking hole of the single column.

5. The apparatus according to claim 2, wherein, When the rod is flipped and thus pushes the locking plate inward while pushing the shaft inward through the rod, the locking pin moves along the curved surface of the guide hole to the outermost position in the inclined range of the guide hole, and the locking bracket rotates about the rotation axis, thereby unlocking the locking end by releasing it from one of the locking holes of the monopole.

6. The apparatus according to claim 1, wherein, The rear surface of the front cover is equipped with a plurality of guide rollers, which can roll into contact with the two side surfaces of the single column.

7. The apparatus according to claim 1, wherein, The rear surface of the rear cover is attached with a back cover for decorative purposes.

8. The apparatus according to claim 1, wherein, A pad is attached to the front surface of the front cover, and the pad is covered by the cover.

9. A single-column headrest height adjustment device for vehicles, comprising: A single column is configured to have multiple locking holes formed at predetermined intervals along the vertical direction and is mounted on the seat back frame; The front cover is retractably secured to the single pillar; The rod is foldably mounted on one side of the front cover; A locking device, connected to the rod and mounted on the rear surface of the front cover, is locked and secured to any one of the plurality of locking holes of the monopole, or is unlocked by being released from one of the locking holes of the monopole in conjunction with a flipping operation of the rod. The middle cover covers the locking plate and locking bracket of the locking device and the single column, and is mounted on the rear surface of the front cover; as well as The rear cover, which covers the middle cover, is assembled to the rear surface of the front cover. The locking device includes: Cable, connected to the inside of the rod; The locking plate is configured as a flat structure having a guide hole with an inclined slope formed through the locking plate, and is connected to the inner end of the cable and laterally movable on the rear surface of the front cover; and, The locking bracket is configured to have a locking end formed on the rear surface of the locking bracket that is inserted into a locking hole of the single column, and a locking pin formed on the upper surface of the locking bracket that is inserted into a guide hole of the locking plate, and the locking bracket is rotatably fastened to the rear surface of the front cover.

10. The apparatus according to claim 9, wherein, The locking device further includes: A rotating shaft is formed at the lower end of the locking bracket and connected to the rear surface of the front cover; and A return spring, mounted on the rotating shaft, provides an elastic restoring force as the locking bracket rotates.

11. The apparatus according to claim 9, wherein, When the rod is not operated, the locking pin is located at the innermost position in the inclined range of the guide hole, and the locking end of the locking bracket is locked by the elastic restoring force of the return spring and inserted into a locking hole of the single column.

12. The apparatus according to claim 9, wherein, When the rod is pulled, and thus the cable connected to the rod is pulled, and the locking plate is pulled outward, the locking pin moves to the outermost position in the inclined range of the guide hole, and the locking bracket rotates about the rotation axis, thereby unlocking the locking end by releasing it from one of the locking holes of the monopole.

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