JPH0667162U - Vehicle seat holding device - Google Patents

Abstract

(57) [Abstract] [Purpose] The device itself is made compact and the seat can be held in a flipped-up state by a simple operation. [Structure] The seat cushion 2 is rotated in a flip-up direction around a hinge pin 18 of a hinge mechanism 21 as an axis. Along with this, the lock arm 26 rotates while the contact point with the hinge bracket 11 moves toward the engagement hole 32. In the flipped-up state, the lock arm 26 enters the engagement hole 32 by the urging force of the torsion coil spring 31, so that the seat cushion 2 is restrained from rotating in the reverse direction and is kept in the flipped-up state. On the other hand, to bring it to the use position, a downward force is applied to the lock operation part 29 to disengage the lock arm 26 from the engagement hole 32, and the seat is tilted in the horizontal direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a holding device for a vehicle seat that is stored in a flip-up state.

[0002]

[Prior art]

 In vehicles such as wagons, when storing large luggage, the rear seats can be folded and stowed up to the side bodies of the vehicles so that the luggage compartment at the rear of the vehicle can be used widely. There is. In this case, it is necessary to hold the seat in the flipped-up state so that the flipped-up seat does not fall down. As the holding device, the one disclosed in Japanese Utility Model Publication No. 3-84240 is known. There is.

To briefly explain this seat holding device, as shown in FIG. 6, a belt 42 is attached to the bottom of the seat cushion 41, and a hook portion 43 is provided at the tip of the seat cushion 41. The length can be adjusted using the buckle 44. In order to hold the seat in the flipped-up state, first, the seat back 45 is folded so as to overlap with the seat cushion 41, and these are flipped up to the side body 46 side, and then the hook portion of the belt 42. 43 is hooked on the fixed portion 47 attached to the side body 46 of the vehicle, and the belt 42 is strongly stretched to bring it into a tensioned state.

[0004]

[Problems to be solved by the device]

 However, in the above configuration, in order to hold the seat in the flipped-up state, the hook portion 43 must be held by the hand, hooked on the fixed portion 47, and the length of the belt 42 must be adjusted, which is troublesome. There is a drawback that. Further, when the seat is used for seating, the belt 42 is left on the floor, so that the hook portion 43 hits the floor or the side body 46 due to vibration while the vehicle is running, and abnormal noise is generated. There was a problem such as doing.

The present invention has been made in view of the above circumstances, and is characterized by providing a compact vehicle seat holding device that is easy to operate.

[0006]

[Means for Solving the Problems]

 A vehicle seat holding device of the present invention is for holding a seat in a flipped-up state in that state, and a hinge bracket fixed to a frame of a seat cushion of the seat, and the hinge bracket. A hinge mechanism that rotatably supports the seat cushion on the vehicle body between a seat use position and a flip-up position via a seat and a hinge bracket that is rotatably provided on the vehicle body side. A lock arm that holds the seat cushion in the flipped-up position by engaging the locking portion, and a lock operation portion that is provided on the lock arm and that engages and disengages the lock arm are provided. It is characterized by

[0007]

[Action]

 When the seat is flipped up, the seat cushion is supported by the hinge mechanism to rotate via the hinge bracket. After the seat is flipped up, the lock operation part is operated to engage the lock arm with the locking part formed on the hinge bracket to hold the seat up.

On the other hand, when seating on the seat, it suffices to operate the lock operation portion to release the engagement, and tilt the seat horizontally.

[0009]

[Effect of device]

 According to the vehicle seat holding device of the present invention, after the seat is flipped up, the lock arm is locked to the locking part simply by operating the lock operation part, so that the seat is flipped up by a simple operation. Can be held in a state. Further, since the holding device is mounted between the vehicle body and the frame of the seat cushion, the device itself can be made compact and inconspicuous.

[0010]

Embodiment An embodiment in which the holding device of the present invention is applied to a rear seat of a wagon vehicle will be described in detail below with reference to the drawings. 1 to 5 show a vehicle seat holding device of this embodiment, in which a rear seat is constructed by attaching a seat back 3 to a rear end portion of a seat cushion 2 in a rising manner. The seat back 3 is rotatably connected to the seat cushion 2. By operating a reclining mechanism (not shown), the seat back 3 can be tilted forward and the seat back 3 can be superposed on the seat cushion 2. . Two rear seats are provided side by side in the left-right direction of the vehicle.

The seat of the present embodiment is configured to be flipped up to the side body side of the vehicle, and the bottom surface of the seat cushion 2 has a front and rear direction at a portion which becomes a lower end when the seat cushion 2 is flipped up. There are two openings 2b arranged side by side. Further, inside the seat cushion 2, a seat back frame 2a formed by bending a metal pipe into a substantially rectangular shape is provided, and a hinge bracket 11 is attached to each opening 2b by welding. The hinge bracket 11 integrally has a pair of facing walls 12 that face each other in the front-rear direction of the vehicle and has a U-shaped cross section, and a bearing hole 13 is formed in each facing wall 12.

On the other hand, on the floor 5, mounting bases 14 are fixed at two portions near the side body 4 side by side in front of and behind the vehicle. Each of the mounting bases 14 is formed in a mountain shape with inclined surfaces 14a facing left and right sides of the vehicle, and the fixed bracket 15 is attached to the inclined surface 14a located on the side body 4 side. It is fixed by welding. The fixed side bracket 15 also has a facing wall 16 facing the front-rear direction of the vehicle, and a bearing hole 17 is formed in each facing wall 16. The hinge bracket 11 is inserted between the opposing walls 16 of the fixed side bracket 15, and a hinge pin 18 is inserted so as to pass through the bearing holes 13 and 17, and is rotatably attached to the fixed side bracket 15. There is. As a result, a hinge mechanism 21 that rotatably supports the hinge bracket 11 of the seat back frame 2a about the hinge pin 18 is configured, and the seat cushion 2 is configured to have a seat use position with a side edge portion on the side body 4 side as an axis. It can rotate between the flipped up position. A washer 19 is attached to the hinge pin 18 and is prevented from coming off by an E ring 20.

A sub-bracket 22 is fixed to the upper portion of the fixed-side bracket 15 by welding. The sub-bracket 22 is formed in a U shape having a facing wall 23 facing in the front-rear direction of the vehicle and a stopper portion 24 for preventing the hinge bracket 11 from excessively rotating, as will be described later. A bearing hole 25 is provided in each. The sub-bracket 22 has a function of rotatably supporting the lock arm 26 by means of a hinge pin 27 passing through the bearing hole 25. The hinge pin 27 is prevented from coming off by an E ring 28.

A lock operation portion 29 is integrally provided on one end side of the lock arm 26, and the lock operation portion 29 protrudes to the outside of the seat through the opening 2 b of the seat cushion 2 and locks when the seat is in a flip-up state. The operation unit 29 can be operated. The lock arm 26 is constantly urged in the direction of arrow A in FIG. 4 by a torsion coil spring 31 attached to the hinge pin 27 in a fitted state. In the state shown in FIG. It is in contact with the base of the hinge bracket 11. Further, an engaging hole 32 into which the tip of the lock arm 26 can enter is formed in a portion near the tip of the hinge bracket 11 to form a locking portion. Further, a cushion rubber 33 having elasticity is attached near the tip of the engaging hole 32 so as to correspond to the stopper portion 24 of the sub bracket 22. The vehicle seat holding device of the present embodiment is attached only to one hinge portion, and the hinge bracket 11 of the seat back frame 2a can be rotated about the hinge pin 18 on the other hinge portion. Only the hinge mechanism 21 for supporting the seat is provided, and the structure relating to the lock mechanism for holding the seat in the flipped-up state is not provided. Next, the operation of this embodiment will be described. To keep the rear seats in the flipped up position, do the following. First, a reclining mechanism (not shown) provided below the seat back 3 is operated to tilt the seat back 3 forward so that the seat back 3 is overlaid. Next, the seat cushion 2 is lifted upward by holding the side edge portion on the side opposite to the hinge mechanism 21 with a hand. Then, the hinge bracket 11 rotates about the hinge pin 18 in the direction of arrow B in FIG. Along with this, the contact point with respect to the hinge bracket 11 moves in the engagement hole 32 direction while the lock arm 26 rotates in the arrow A direction. When the seat cushion 2 is flipped up, the cushion rubber 33 first comes into contact with the stopper portion 24, but since the cushion rubber 33 has a certain degree of elasticity, it can be further rotated slightly. Then, when the seat cushion 2 is further lifted, the tip of the lock arm 26 advances into the engagement hole 32 by the biasing force of the coil spring 31 when the tip of the lock arm 26 encounters the engagement hole 32, as shown in FIG. It will be in such an engaged state. In this state, even if the seat cushion 2 is to be rotated in the direction opposite to the flip-up operation, the rotation of the seat cushion 2 is restricted by the tip of the lock arm 26 hitting the opening edge 32a of the engaging hole 32. Therefore, the seat cushion 2 is reliably held in the flipped-up state.

Further, in this state, the elastic force of the cushion rubber 33 causes the elastic force of the hinge bracket 11 in the direction of arrow C shown in FIG. It is possible to prevent the seat cushion 2 from rattling due to vibrations when the vehicle is running, because the lock arm 26 is in pressure contact with the lock arm 26.

On the other hand, in order to sit down on the seat, when the seat in the flipped-up state is tilted to the use position, the following may be done. First, when a force is applied to the seat in the direction of arrow D in FIG. 5, the seat cushion 2 slightly rotates in the direction D while compressing the cushion rubber 33. Then, the opening edge portion 32a that is in pressure contact with the tip end portion of the lock arm 26 is separated from the lock arm 26, so that the lock arm 26 can rotate. Therefore, when a downward force is applied to the lock operation portion 29 to rotate the lock arm 26 in the direction opposite to the arrow A, the engagement between the lock arm 26 and the engagement hole 32 can be released. After that, by rotating the seat in the direction opposite to the arrow B, the seat cushion 2 can be set to a horizontal use position, and by raising the seat back 3, a person can sit on the seat. it can.

According to the vehicle seat holding device of the present embodiment, the seat is held in the flipped-up state simply by flipping up the seat cushion 2 to the side body side, so that the seat holding operation is very simple. . Further, since the holding device is built in and installed between the floor 5 and the frame 2a of the seat cushion 2, the device itself is compact and can be made inconspicuous even when the seat is stored.

The vehicle seat holding device of the present invention is not limited to the above embodiment, but the following modifications can be made.

(1) The lock arm 26 of this embodiment is always biased by the torsion coil spring 31 so as to be in contact with the hinge bracket 11, but the biasing means is not limited to this, and the tip of the lock arm is not limited to this. The side may be set to be heavy and the lock arm may be urged to contact the hinge bracket due to weight balance. Further, in the present embodiment, the lock arm 26 is automatically engaged with the engaging hole 32 only by flipping up the seat by the biasing force of the torsion coil spring, but this torsion coil spring is always necessary. Instead, the lock arm may be engaged with the engagement hole manually by holding the lock operation part in the hand. (2) The vehicle seat holding device of the present invention is attached to a seat that is flipped up to the side body side about the longitudinal direction of the vehicle, but the invention is not limited to this. It may also be applied to a seat that is flipped up to the front seat side.

[Brief description of drawings]

FIG. 1 is a perspective view showing a mounting position of a sheet holding device.

FIG. 2 is an enlarged perspective view of a sheet holding device.

FIG. 3 is an exploded perspective view of a sheet holding device.

FIG. 4 is a sectional view of the holding device when the seat is in the use position.

FIG. 5 is a sectional view of the holding device when the seat is in the flipped-up position.

FIG. 6 is a perspective view showing a conventional sheet holding device.

[Explanation of symbols]

 11 ... Hinge bracket 15 ... Fixed side bracket 21 ... Hinge mechanism 26 ... Lock arm 29 ... Lock operation part 32 ... Engagement hole

Claims (1)

[Scope of utility model registration request] 1. A hinge bracket fixed to a frame of a seat cushion of the seat, for holding the seat in a flipped-up state, and the seat cushion via the hinge bracket. By engaging a hinge mechanism that rotatably supports the vehicle body between the seat use position and the flip-up position, and an engaging portion that is rotatably provided on the vehicle body side and that is formed on the hinge bracket. A vehicle seat holding device, comprising: a lock arm that holds the seat cushion in the flipped-up position; and a lock operation portion that is provided on the lock arm and that engages and disengages the lock arm.