JPH04106028U - Structure of tumble sheet - Google Patents

Abstract

(57) [Summary] This invention prevents the front latch and front striker, as well as the upright latch and upright striker, from rattling when the seat cushion is used or when the seat cushion is in the upright position, and eliminates noise. The purpose is to provide a tumble sheet structure that can prevent the occurrence of tumble sheets. Said seat cushion S
A front striker plate 40 having a wedge-shaped fitting hole 40c into which the front striker 2 is fitted is fixed to C, and when the seat cushion SC is in an upright state, a front striker plate 40 is fixed to the upright striker 6. It is characterized in that the abutting upright striker plate 30 is fixed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a tumble seat (with the front part of the seat cushion as the center of rotation and the rear part This relates to the structure of the seat (which rotates into an upright position).

0002

[Conventional technology]

Tumble seats, such as second and third seats in a car, are located at the rear of the car. In order to widen the space and use this space as a luggage compartment, the front part of the seat cushion was It is attached to the floor of the vehicle so that the rear part rotates as the center of rotation and stands upright.

0003 As shown in Figure 6, such a tumble seat is located on the rear left side of the seat cushion SC. A rear portion rotatably pivoted at both right ends and locked to each rear striker 1 on the vehicle floor F. The latches 11, 11 can be rotated to both the front left and right ends of the seat cushion SC, respectively. front latches 22, 2 that are pivoted to the vehicle floor F and lock to each front striker 2, 2 of the vehicle floor F; 2, provided on the vehicle floor F in front of the one front striker 2 and mounted on the seat cushion. an erecting striker 6 for maintaining the erected state of the seat cushion S; an erecting latch 16 rotatably pivoted to C and latched to the erecting striker 6; When the rear latch 11 is released from the rear striker 1, The rear part of the seat cushion SC rotates around the front striker 2 and stands up. The latch 16 is engaged with the upright striker 6, and the seat cushion SC is in the upright position. It consists of a structure that maintains the state. Therefore, when the seat cushion SC is in the upright state, as shown by the two-dot chain line, The front latch 22 connects to the front striker 2, and the standing latch 16 connects to the standing striker 6. They are each locked in place.

0004

[Problem that the idea aims to solve]

However, a horizontal load (in the direction of the arrow in Figure 6) is applied to the rear of the seat cushion SC. (For example, when the load is applied in the longitudinal direction when driving or stopping), the rotational moment becomes large. , the front latch 22, the front striker 2, the standing latch 6, and the standing strut. The squid 16 rattles, and this rattle makes an abnormal noise that is unpleasant for the passengers. Ta. Furthermore, even when using the seat cushion SC, due to car vibrations etc. The front latch 22 and the front striker 2 are loose, and as mentioned above, due to this looseness, An abnormal noise was occurring.

[0005] Therefore, this invention has been developed to prevent the seat cushion from being used when the seat cushion is in an upright position. When the front latch and front striker and the raising latch and raising striker are Provides a tumble sheet structure that prevents the car from rattling and causing abnormal noise. The purpose is to

[0006]

[Means and actions for solving the problem]

In the present invention, the seat cushion has a wedge shape into which the front striker fits. While fixing the front striker plate with a fitting hole formed therein, the seat cookie When the station is in the standing state, the standing striker comes into contact with the standing striker. It has a fixed mosquito plate. Therefore, the front striker fits into the wedge-shaped fitting hole of the front striker plate. The front striker plate is in contact with the front striker plate at two points, and the front latch is also locked. Therefore, it contacts the front striker plate and the front latch at three points in total. the This prevents the front striker and front latch from rattling. In addition, the standing striker is locked by the standing latch and the standing striker puller is locked. The rate contacts the erecting latch and the erecting striker plate at two points. There is. Therefore, rattling of the standing striker and the standing latch can be prevented.

[0007]

【Example】

An embodiment according to the present invention will be described based on FIGS. 1 to 5, and the same members as in the conventional example will be denoted by the same reference numerals, and their explanation will be omitted. A front latch 22 is rotatably attached to both the left and right ends of the front portion of the seat cushion SC via a leg SC ₁ fixed to a frame SC ₂ of the seat cushion SC. As shown in FIG. 2, the front latch 22 is locked to the front striker 2 that is loosely fitted into a loose fit hole _SC3 formed in the leg _SC1 .

[0008] The front latch 22 locks with the front striker 2 without any gaps, allowing the front striker to move more smoothly. It has a shape that allows it to be released from the locked state with the trike 2. That is, as shown in FIG. 4, the front latch 22 has a friction coefficient of t with the front striker 2. anθ=0.1 (empirical value). θ=5.71 degrees. Therefore, the shape X of the surface of the front latch 22 in contact with the front striker 2 is as follows. It is set to . Based on the center Y of the front striker 2, the center Z of the shaft portion 22c of the front latch 22 and An angle where θ does not exceed 5.71 degrees, for example, θ = 5 degrees, with respect to the line connecting the Tilt it, extend it from the center Y toward the shaft part 22c of the front latch 22, and connect this extension line and the middle Let W be the intersection with the vertical line passing through the center Z. Centering on this point W, the contact point between this W, the front striker 2 and the front latch 22 A circumferential arc having a radius between the front latch 22 and the front striker 2 The shape of the surface is assumed to be X.

[0009] A front striker plate 30 is fixed to the shaft portion 22c of the front latch 22. It is set up. The front striker plate 30 has its base end 30a connected to the shaft portion 22c. A wedge-shaped fitting hole 30c is formed at the tip 30b. The wedge-shaped fitting hole 30c of the front striker plate 30 is V-shaped. The front striker 2 fits into the fitting hole 30c, and the front striker plate The front striker 30 is in close contact with the front striker 2 at two points 31 and 32.

A rising striker plate 40 that comes into contact with the standing striker 6 when the seat cushion SC is in the standing state is fixedly provided on one leg SC ₁ of the seat cushion SC. As shown in FIG. 3, the erecting striker plate 40 has its base end 40a fixed to the shaft portion 16'c of the erecting latch 16, and its tip 40b protrudes toward the erecting striker 6. The end face 40c of the stand-up striker plate 40 is in contact with the stand-up striker 6 when the seat cushion SC is in the stand-up state. Therefore, the erecting striker 6 is in close contact with the erecting latch 16 and the tip surface 40c of the erecting striker plate 40 at two points, upper and lower.

[0011] In the figure, 18 is an open lever, and this open lever 18 is a stand-up lever. It is rotatably attached to the shaft 16'c of the switch 16, and its tip 18a is attached to the erecting ramp. It locks in the locking hole 16c formed between the tip 16b and the base end 16a of the latch 16, and then The end portion 18b is connected to the operating lever 4 via the wire 17. The operating lever 4 is also connected to each rear latch 11, 11, and the operating lever 4 is operated. Then, the locked state of the rear latches 11, 11 from each rear striker 1, 1 is released. However, the seat cushion SC can be rotated to be in an upright state.

0012 Between the open lever 18 and one front latch 22, there is a When the locked state from the part striker 2 is released, the lever is locked to the open lever 18, An interlocking portion 19 that releases the latching state of the erecting latch 16 from the erecting striker 6 is provided. It is provided. This interlocking part 19 is formed integrally with the release lever 24 of the front latch 22, and is is formed to extend in the direction of the lever 18. The release lever 24 forming the interlocking part 19 is separate from the front latch 22, A release lever 24 is rotated from the outside of the front latch 22 to the shaft 22c of the front latch 22. It is movably mounted. Then, the tip 24a of the release lever 24 is connected to the tip 22a of the front latch 22 and the shaft 2. When the locking hole 22d formed between 2c and the release lever 24 is operated, the front lug is released. The locking state of the switch 22 from the front striker is released.

[0013] A pin 19a provided at the upper end of the interlocking part 19 is formed at the rear end of the open lever 18. It is locked to the curved portion 18c. The curved portion 18c of the open lever 18 operates the release lever 24 and When the interlocking part 19 rotates, the pin 19a of the interlocking part 19 is locked to the curved part 18c. slide along the upper surface 18d of the curved portion 18c, and open the lever via the open lever 18. It has a shape that releases the locking state of the standing latch 16 from the standing striker 6. ing. The open lever 18 has pins 19a of the interlocking part 19 at both ends of the curved part 18c. Stopper portions 18e and 18f prevent the lever from being removed from the open lever 18. are formed.

[0014] Furthermore, a tension spring 20 is stretched between the open lever 18 and the interlocking part 19. . This tension spring 20 biases the open lever 18 and the interlocking part 19, respectively. The standing latch 16 and the front latch 22 are connected via the open lever 18 and the interlocking part 19. is biased in the direction of locking the upright striker 6 and the front striker 2.

The release lever 24 forming the interlocking portion 19 is bent and extends inwardly from the hole _SC5 formed in the leg _SC1 , and the handle 24b of the release lever 24 is inserted into the hole _SC5 formed in the leg _SC1 . It is located inside. The reason why the handle 24b of the release lever 24 is located inside the leg SC ₁ is that when operating the release lever 24, it is easier to operate the release lever 24 on the inside than on the outside of the leg SC ₁ . This is because it can be done.

[0016] 5 is a torsion bar, and this torsion bar 5 has an operating end 5a that allows the seat to be The seat cushion SC rotates and urges the seat cushion SC in the direction of the upright state. are doing.

[0017] The structure of the tumble seat according to the above configuration is that the seat cushion SC is rotated to start up. In the standing state, the standing latch 16 is engaged with the standing striker 6 and the standing striker 6 is engaged with the standing striker 6. The striker plate 40 comes into contact with the standing striker 6, and the left and right front latches 2 2 and 22 are also locked to the front strikers 2 and 2, and the front striker plate 30 is Since the two points 31 and 32 are in close contact with the striker 2, the seat cushion SC The standing position can be reliably locked without wobbling. Then, when the operating lever 4 is operated, the seat cushion SC in the upright state is activated. The open lever 18 rotates via the ear 17, and accordingly, the standing latch 1 Since the locked state from the standing striker 6 of 6 is released, it is easy to raise the seat in the standing state. The front cushion SC can be locked off, and the left and right front latches 22, 22 can be locked off. It can be easily restored while it is locked to the trikes 2, 2. Furthermore, when the seat cushion SC in the upright state is operated by the release lever 24, the seat cushion SC is moved forward. When the latch 22 is released from the front striker, the interlocking part 19, The engagement of the standing latch 16 from the standing striker 6 via the open lever 18 When the stopped state is released and the release lever 24 on the other side is also operated, the other front latch 2 Since the locked state from the front striker 2 of 2 is released, it can be easily removed from the vehicle floor F. can be done.

[0018] According to the present invention, the front striker fits into the seat cushion. While fixing the front striker plate with a wedge-shaped fitting hole, An upright cushion that comes into contact with the upright striker when the upright cushion is in the upright state. Since the striker plate is fixed, the seat cushion rotates and becomes an upright position. When this happens, the front striker will fit into the wedge-shaped fitting hole of the front striker plate. It fits, contacts this front striker plate at two points, and then the front latch locks. , so it touches the front latch and the front striker plate at three points. subordinate Therefore, even if a horizontal load is applied to the seat cushion in an upright position, the front latch and This prevents rattling with the front striker. In addition, the stand-up striker is locked by the stand-up latch, and the stand-up striker Since the plates are also in contact, there are two They touch at a point. Therefore, as mentioned above, there is a backlash between the standing latch and the standing striker. can be prevented in the same way. Moreover, when the seat cushion is in use, the front striker is It contacts the front latch and front striker plate at three points, so it is protected against vehicle vibrations, etc. This prevents rattling between the front latch and the front striker.

[Brief explanation of drawings]

FIG. 1 is a side view of the front part of a seat cushion in a tumble seat using the present invention.

FIG. 2 is a side view of the front latch and front striker in FIG. 1;

FIG. 3 is a side view of the state in which the erecting latch is locked to the erecting striker in FIG. 1;

FIG. 4 is a partial side view of FIG. 2 in which the front latch is locked to the front striker;

FIG. 5 is a perspective view of a tumble sheet using the present invention.

FIG. 6 is a side view of a conventional tumble sheet.

[Explanation of symbols]

1 Rear striker 11 Rear latch 2 Front latch 22 Front striker 6 Standing striker 16 Standing latch 30 Standing striker plate 40 Front striker plate

Claims (1)

[Scope of utility model registration request] [Claim 1] A rear latch rotatably pivoted to each rear left and right end of the seat cushion and latched to each rear striker on the vehicle floor, and a rear latch rotatably attached to each front left and right end of the seat cushion. a front latch that is pivotably attached and that locks to each front striker on the vehicle floor; an upright striker that is provided on the vehicle floor in front of the one front striker and that maintains the seat cushion in an upright state; and the seat a rising latch rotatably attached to the cushion and latched to the rising striker, the seat cushion having a wedge-shaped fitting hole into which the front striker fits; A structure of a tumble seat, characterized in that a plate is fixed, and also a plate for a standing striker that comes into contact with the standing striker when the seat cushion is in an upright state is fixed.