Reversible seat cushion device for vehicle

Abstract

A turnover seat cushion device of a vehicle comprises a support unit, an operation unit arranged on the support unit and a seat cushion unit connected with the operation unit. The support unit comprises a base and two side plates which extend in parallel from the base and define hole grooves respectively. Each hole groove is provided with a guide groove area extending in a curve mode and two positioning holes located in the two opposite ends of the guide groove area respectively. The operation unit comprises a base shaft fixed to the side plate and a moving shaft penetrating through the hole groove. The seat cushion unit is connected with the base shaft and the moving shaft, slides in the guide groove area through the moving shaft, and turns over between an initial position which transversely extends and enables the moving shaft to be positioned in the positioning hole and a turning position which longitudinally extends and enables the moving shaft to be positioned in the positioning hole with the base shaft as the axis.

Description

Technical Field

[0001] The present invention relates to a seat cushion configuration of a vehicle, and in particular to a reversible seat cushion device of the vehicle. Background Art

[0002] See Figure 1 and Figure 2 , is a conventional seat cushion flipping device 1, suitable for being installed on a vehicle body (not shown) and for mounting a seat cushion 2, and comprising a fixing plate 11 suitable for being fixed to the vehicle body, a first support frame 12 connected to the fixing plate 11, a second support frame 13 connected to the fixing plate 11 and spaced apart from the first support frame 12, a shaft 14 pivotally disposed between the first support frame 12 and the second support frame 13 and suitable for connecting to the seat cushion 2, and a push-button latch 15 for positioning the shaft 14 via the first support frame 12. The first support frame 12 defines a through-hole 120 for the push-button latch 15 to pass through. The through-hole 120 has a through-hole 121 and two positioning regions 122 connected to the through-hole 121 and spaced apart from each other in a direction surrounding the through-hole 121. The push-button lock 15 includes a main body 151 for being inserted into the insertion area 121 of the through hole 120, a locking section 152 extending axially from the main body 151 and for being connected to the shaft body 14, and a positioning portion 153 radially protruding from the main body 151 and for being positioned in any positioning area 122 when the shaft body 14 and the seat cushion 2 are rotated to corresponding positions.

[0003] The conventional seat cushion flipping device 1 achieves its function of flipping the seat cushion 2 relative to the vehicle body by rotating the shaft 14 within the through-hole 120. To ensure smooth rotation of the shaft 14, a clearance must be reserved between the shaft 14 and the wall of the through-hole 120. Without a guide for the rotational movement, friction will inevitably occur between the shaft 14 and the first support frame 12, affecting the smooth operation. Furthermore, the conventional seat cushion flipping device 1 is only equipped with a push-button lock 15 on the side closest to the first support frame 12. Although this can still achieve a positioning effect, it is also questionable in terms of stability when the seat cushion 2 is fixed in a specific position and only has a single axial positioning mechanism. Summary of the Invention

[0004] [Problems to be Solved by the Invention]

[0005] Therefore, an object of the present invention is to provide a reversible seat cushion device for a vehicle with a relatively stable and smooth reversing operation.

[0006] [Technical means to solve the problem]

[0007] Therefore, the reversible seat cushion device of the vehicle of the present invention includes a bracket unit suitable for being installed on the vehicle body, an operating unit disposed on the bracket unit, and a seat cushion unit connected to the operating unit.

[0008] The bracket unit includes a base and two side plates extending parallel to each other from the base and each defining a hole slot extending along an axial direction. Each hole slot has a guide slot area extending in a curve and two positioning holes located at opposite ends of the guide slot area.

[0009] The operating unit comprises a base shaft fixed between the side plates and a moving shaft with two ends respectively passing through the holes of the side plates.

[0010] The seat cushion unit is connected to the base shaft and the movable shaft of the operating unit, and is used to slide in the guide groove area through the movable shaft, and flip between an initial position in which the movable shaft extends laterally and is positioned in positioning holes on opposite sides along the axial direction, and a flip position in which the movable shaft extends longitudinally and is positioned in positioning holes on opposite sides along the axial direction, with the base shaft as the axis.

[0011] In some embodiments of the present invention, the movable shaft of the operating unit comprises a shaft and a first stopper and a second stopper respectively disposed on opposite ends of the shaft. The first stopper comprises a first protrusion for releasably positioning in any positioning hole of a slot on the same side, and the second stopper comprises a second protrusion for releasably positioning in any positioning hole of the slot on the same side. The operating unit further comprises an operating mechanism disposed on the movable shaft and operable to control whether the first and second protrusions are positioned in the positioning holes.

[0012] In some embodiments of the present invention, the operating mechanism of the operating unit includes a washer disposed on the movable shaft and located outside the first protrusion of the first stopper, and a push rod disposed at one end of the movable shaft adjacent to the same side as the first stopper. The push rod is operable to disengage the first and second protrusions from the positioning holes in a direction parallel to the axial direction.

[0013] In some embodiments of the present invention, the operating mechanism of the operating unit further comprises an elastic member disposed between the gasket and the push rod and configured to accumulate an elastic restoring force for returning the push rod to its original position when the push rod is operated.

[0014] In some embodiments of the present invention, the seat cushion unit includes a frame disposed on a base shaft of the operating unit and rotatable relative to the base shaft, and a cushion body fixed to the frame.

[0015] [Effects that can be achieved by the present invention]

[0016] In the reversible seat cushion device of the present invention, when the seat cushion unit flips between its initial and flipped positions, the base axis serves as the axis. Guided by the guide groove area of ​​the slot, the movable axis moves smoothly within the base axis, optimizing the stability and smoothness of the flipping process. Furthermore, when the seat cushion unit needs to be positioned at any position, the opposite ends of the movable axis can be positioned in corresponding positioning holes. With limit mechanisms at both ends, the seat cushion unit can be securely and stably fixed in a specific position, thereby optimizing the reliability of the positioning function.

[0017] In some embodiments of the present invention, the seat cushion unit can be flipped when the first protrusion and the second protrusion are disengaged from the positioning hole, or the seat cushion unit can be fixed in the desired position when the first protrusion and the second protrusion are clamped in the positioning hole, simply by operating the operating mechanism. The operation is very simple and intuitive.

[0018] In some embodiments of the present invention, the gasket of the operating mechanism can stop the first limiting member, ensuring that the first limiting member does not axially separate from the hole groove on the same side, thereby maintaining normal operation of the first limiting member.

[0019] In some embodiments of the present invention, while operating the push rod, the elastic member can accumulate elastic restoring force, and the push rod can be directly reset by the elastic restoring force without applying force to operate the push rod, making the operation of the operating mechanism easier.

[0020] In some embodiments of the present invention, the rigid frame of the seat cushion unit is connected to the base shaft fixed at a specific position, which can optimize the overall structural strength of the seat cushion unit and ensure operational stability in situations where frequent flipping is possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features and effects of the present invention will be more clearly seen in the following embodiments with reference to the accompanying drawings, in which:

[0022] Figure 1 It is a three-dimensional exploded view illustrating a conventional seat cushion flipping device;

[0023] Figure 2 It is a three-dimensional exploded view illustrating the structure of a conventional seat cushion flipping device;

[0024] Figure 3 is a side view illustrating an embodiment of a reversible seat cushion device for a vehicle of the present invention;

[0025] Figure 4 is a perspective exploded view illustrating the support unit and the operating unit of this embodiment;

[0026] Figure 5 is an incomplete three-dimensional diagram illustrating the seat cushion unit of this embodiment being mounted on the operating unit;

[0027] Figure 6 and Figure 7 They are all cross-sectional schematic diagrams illustrating the operation of the moving axis of the operating unit;

[0028] Figure 8 is a three-dimensional diagram illustrating the movement of the movable shaft in the hole groove of the bracket unit; and

[0029] Figure 9 It is a fragmentary perspective view showing the seat cushion unit in a flipped position.

[0030] Reference Signs List

[0031] 3··············Bracket unit

[0032] 31············Base

[0033] 32············Side panel

[0034] 320···········Hole slot

[0035] 321···········Guide groove area

[0036] 322···········Positioning hole

[0037] 4··············Operation unit

[0038] 41············Base axis

[0039] 42············Moving axis

[0040] 421···········Shaft

[0041] 422············First limiter

[0042] 423············Second limiter

[0043] 428············The first convex part

[0044] 429············The second convex part

[0045] 43············Operating mechanism

[0046] 431············gasket

[0047] 432···········Putter

[0048] 433···········Elastic parts

[0049] 5··············Seat cushion unit

[0050] 51············Skeleton

[0051] 52············Pad body

[0052] 91············Body

[0053] 99············Main seat cushion DETAILED DESCRIPTION

[0054] See Figure 3 and Figure 4 , is an embodiment of a reversible seat cushion device for a vehicle of the present invention, comprising a bracket unit 3 adapted for installation on a vehicle body 91, an operating unit 4 disposed on the bracket unit 3, and a seat cushion unit 5 connected to the operating unit 4. In addition to this embodiment, the vehicle is also equipped with a main seat cushion 99 located relatively forward of this embodiment.

[0055] See Figure 4 and Figure 5 The bracket unit 3 includes a base 31 extending generally laterally and serving as a structural foundation, and two side panels 32 extending parallel to each other from the base 31 and each defining an axially extending slot 320. The slots 320 of the side panels 32 are aligned with each other along the axial direction, and each slot 320 has a curved guide channel region 321 and two positioning holes 322 located at opposite ends of the guide channel region 321.

[0056] The operating unit 4 includes a base shaft 41 fixed between the side plates 32, a movable shaft 42 with both ends respectively inserted into the hole slots 320 of the side plates 32, and an operating mechanism 43 disposed on the movable shaft 42. The base shaft 41 serves as the axis center, so that the guide groove area 321 of the hole slot 320 extends in the form of an arc with the axis center as the center. The movable shaft 42 has a shaft 421, and a first stopper 422 and a second stopper 423 respectively sleeved on opposite ends of the shaft 421. The first stopper 422 has a first protrusion 428 for detachably positioning in any positioning hole 322 of the hole slot 320 on the same side; and the second stopper 423 has a second protrusion 429 for detachably positioning in any positioning hole 322 of the hole slot 320 on the same side. Specifically, the diameter of the shaft 421 of the movable shaft 42 is slightly smaller than the width of the guide groove area 321, so it can move in the guide groove area 321; and the diameter of the first protrusion 428 and the second protrusion 429 are designed to be able to extend through any positioning hole 322, and are larger than the width of each guide groove area 321 and cannot enter the guide groove area 321.

[0057] See also Figures 4 to 6 The operating mechanism 43 includes a washer 431 that is sleeved on the movable shaft 42 and located outside the first protrusion 428 of the first stopper 422; a push rod 432 disposed at one end of the movable shaft 42 adjacent to the same side as the first stopper 422; and an elastic member 433 disposed between the washer 431 and the push rod 432 and configured to accumulate elastic restoring force to return the push rod 432 to its original position when the push rod 432 is operated. The washer 431 cooperates with the arrangement of the first stopper 422 on the same side as the slot 320 to block the first stopper 422 and prevent it from disengaging from the slot 320. The washer 431 also serves as one of the abutment ends of the elastic member 433. The operating mechanism 43 is used to control whether the first protrusion 428 and the second protrusion 429 are located in the positioning hole 322 . Specifically, the push rod 432 can be operated to move the first protrusion 428 and the second protrusion 429 away from the positioning hole 322 in a direction parallel to the axial direction.

[0058] The seat cushion unit 5 is connected to the base shaft 41 and the movable shaft 42 of the operating unit 4, and includes a frame 51 that is sleeved on the base shaft 41 of the operating unit 4 and can rotate relative to the base shaft 41, and a cushion body 52 fixed to the frame 51. The interconnection of the rigid frame 51 of the seat cushion unit 5 and the base shaft 41 fixed in a specific position can optimize the overall structural strength of the seat cushion unit 5 and ensure operational stability in situations where frequent flipping is possible.

[0059] See also Figures 6 to 9 The seat cushion unit 5 is used to slide in the guide groove area 321 by the movable shaft 42, and is rotated between an initial position in which the movable shaft 42 is extended horizontally and positioned in the positioning holes 322 on opposite sides along the axial direction, and a reverse position in which the movable shaft 42 is extended longitudinally and positioned in the positioning holes 322 on opposite sides along the axial direction. Therefore, as long as the push rod 432 of the operating mechanism 43 is pushed in the axial direction, the first protrusion 428 and the second protrusion 429 can be rotated from the initial position to the initial position. Figure 6 The locked state shown is positioned at the positioning hole 322, and is switched to Figure 7 At this time, since the movable shaft 42 extends through the positioning hole 322 at the position of the shaft 421, an external force can be applied to the seat cushion unit 5 to drive the shaft 421 to move. Figure 8 The seat cushion unit 5 moves in the guide groove area 321, thereby achieving the seat cushion unit 5 in the following manner: Figure 3 The initial position presented is the same as Figure 9 Functionality to flip between presented flip positions.

[0060] It is worth noting that, whether the seat cushion unit 5 is moved from the initial position to the flipped position or from the flipped position to the initial position, the first protrusion 428 of the first stopper 422 is unable to enter the guide groove area 321 on the same side. During the movement process, the first protrusion 428 will abut against the side plate 32 on the same side until the seat cushion unit 5 is flipped to the desired position. The movable shaft 42 also moves to a position where the first protrusion 428 can enter any positioning hole 322. The first protrusion 428 and the second protrusion 429 can then utilize the accumulated elastic restoring force of the elastic member 433 to respectively enter the positioning holes 322 located on opposite sides along the axial direction. Therefore, after the flipping action is completed, this embodiment automatically switches the first and second stoppers 422 and 423 to the locked state without any additional operations.

[0061] In summary, the embodiment of the reversible seat cushion device for a vehicle of the present invention allows the seat cushion unit 5 to be smoothly and stably flipped between the initial position and the flipped position by simply operating the operating mechanism 43. Furthermore, when the seat cushion unit 5 needs to be positioned in any position, it can be stably fixed in place due to the limit mechanisms at both ends. This not only allows for smooth operation, but also ensures that the seat cushion unit 5 is stably and reliably fixed in place to meet the needs of the rider. Therefore, the objectives of the present invention are effectively achieved.

[0062] What has been stated above are merely embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Any simple equivalent changes and modifications made based on the scope of the patent application and the contents of the patent specification of the present invention are still within the scope of the patent of the present invention.

Claims

1. A reversible seat cushion device for a vehicle, comprising: A bracket unit adapted to be mounted on a vehicle body, the bracket unit comprising a base and two side plates extending parallel to each other from the base and each defining an axially extending aperture, each aperture having a curved guide channel region and two positioning holes located at opposite ends of the guide channel region; An operating unit, the operating unit being arranged on the bracket unit and comprising a base shaft fixed between the side plates and a movable shaft with both ends respectively passing through the hole slots of the side plates; as well as A seat cushion unit, which is connected to the base shaft and the movable shaft of the operating unit, and is used to slide in the guide groove area by means of the movable shaft, and flip between an initial position in which the movable shaft is extended laterally and positioned in positioning holes on opposite sides along the axial direction, and a flip position in which the movable shaft is extended longitudinally and positioned in positioning holes on opposite sides along the axial direction, with the base shaft as the axis.

2. The reversible seat cushion device for a vehicle according to claim 1, wherein: The movable shaft of the operating unit has a shaft and a first limit member and a second limit member respectively mounted on opposite ends of the shaft, the first limit member having a first protrusion for being detachably positioned in any positioning hole of the hole slot on the same side, and the second limit member having a second protrusion for being detachably positioned in any positioning hole of the hole slot on the same side. The operating unit also includes an operating mechanism arranged on the movable shaft and used to operate to control whether the first protrusion and the second protrusion are located in the positioning holes.

3. The reversible seat cushion device for a vehicle according to claim 2, wherein: The operating mechanism of the operating unit has a gasket that is sleeved on the movable shaft and located on the outside of the first protrusion of the first limiting member, and a push rod that is arranged at one end of the movable shaft adjacent to the same side of the first limiting member. The push rod can be operated to make the first protrusion and the second protrusion disengage from the positioning hole in a direction parallel to the axial direction.

4. The reversible seat cushion device for a vehicle according to claim 3, wherein: The operating mechanism of the operating unit further includes an elastic member which is arranged between the gasket and the push rod and is used for accumulating elastic restoring force to restore the push rod when the push rod is operated.

5. The reversible seat cushion device for a vehicle according to claim 1, wherein: The seat cushion unit comprises a frame which is sleeved on the base shaft of the operating unit and can rotate relative to the base shaft, and a cushion body which is fixed on the frame.

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