JP3761500B2 - Strap structure for vehicle seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat strap for an automobile, and more particularly, to a structure of a strap for forward operation that unlocks the seat back and causes the seat back to fall forward.
[0002]
[Prior art]
For example, in the conventional center seat back of the rear seat, the center seat back is locked to the vehicle body side in use, and the locked state is released by pulling forward the strap provided on the seating surface side of the center seat. There is something that can be moved forward.
[0003]
The above strap is attached to a lever provided on the center seat side, and the center seat back is locked to the vehicle body side by directly or indirectly engaging the lever with a striker provided on the vehicle body side.
[0004]
The lever is provided with a latching portion that is bent in a substantially C shape with the opening facing the rear side, which is the vehicle body side, and the strap is latched on the latching portion.
[0005]
The straps described above are formed of a flexible belt-like fabric so as not to feel a foreign object when a passenger is seated. In order to facilitate the operation, one belt-like cloth is folded back, and both free ends are sewn together to form an annular shape to form a tip portion.
Further, a through hole for engaging with the latching portion of the lever is opened at the base end portion of the strap.
[0006]
[Problems to be solved by the invention]
In order to keep the strap latched to the lever, after the strap is hooked on the lever latch, the retaining member is attached to the latch to prevent the strap from being pulled out. It is stuck.
[0007]
And since this strap hooking and securing of the retaining member must be performed after the center sheet is assembled, there is a problem that the mounting property of the retaining member to the lever is particularly bad.
[0008]
Therefore, an object of the present invention is to prevent the strap from coming off the latching portion of the lever without using a retaining member.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a rigid portion in which the strap is fused integrally by overlapping both free ends of a belt-like heat-fusible cloth body, and the rigid hole is formed. And the length of the rigid portion to the tip and the through hole is longer than the length of the hook portion main body and the tip of the hook portion main body. It is the structure characterized by this.
[0010]
With the configuration described above, the outer surface of the rigid portion of the strap is joined to the tip of the latching portion. Therefore, the amount of movement of the strap with respect to the hooking portion is regulated to be constant in the hooking state of the C-shaped hooking portion, so that the strap does not escape from the lever.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a center seat back SB of a rear seat, and a strap 1 is provided on the seating surface side of the center seat back SB. When the strap 1 is pulled forward, the center seat back SB is locked to the vehicle body B. It is cancelled | released and it is comprised so that it may lean forward as shown to a dashed line on a seat cushion.
[0012]
FIG. 2 shows a state in which the strap 1 is attached. The strap 1 is hooked on the hook 2 of the lever 2, and the lever 2 is pivotally attached to the frame of the center seat back SB by a pin 24 so as to be rotatable in the front-rear direction. .
[0013]
A hook 23 is formed integrally with the lever 2 shown in the drawing, and the center seat back SB is locked to the vehicle body B by engaging the striker 40 fixed to the vehicle body B side.
The lever 2 shown in the figure is urged by a spring 30 in the locking direction, which is the R direction shown in the arrow direction.
[0014]
A substantially C-shaped latching portion 2A having an opening facing backward is integrally formed on the upper portion of the lever 2, and the strap 1 according to the present invention is latched on the latching portion 2A.
[0015]
The strap 1 includes rigid portions 10 and 13 and an annular operation portion 12. When the operation portion 12 is gripped and pulled in the forward direction, the lever 2 rotates against the elasticity of the spring 30 and is locked. Is released.
[0016]
The strap 1 and the hooking portion 2A are formed as shown in FIG. The strap 1 is a belt-like cloth body having flexibility and heat-sealability, and the rigid parts 10 and 13 having rigidity are formed by overlapping the free ends 10A and 10B and heat-sealing, and does not heat-seal. The part is formed in an annular shape, and this annular part is used as the operation portion 12. In the figure, (10C) shows a cured layer cured by heat fusion.
[0017]
The rigid portions 10 and 13 are formed with through holes 11 through which the rigid portions 10 and 13 are inserted from the distal end portion 20 of the latching portion 2A to the main body 21 side.
The leading end side of the through hole 11 is a retaining portion 10 and the operation portion 12 side is a shape retaining portion 13.
[0018]
The length from the through hole 11 to the tip of the retaining portion 10 and L _1. This length L ₁ is formed longer than the length L ₂ from the front end 20 of the latching portion (2A) formed in a substantially C shape to the main body 21.
In the figure, “a” indicates the inner edge of the distal end portion 20, and “b” indicates the proximal end edge of the latching portion 2A.
[0019]
FIG. 4 shows the hooked state of the strap 1 to the lever 2 described above.
The tip 20 of the latching portion 2A is inserted into the through-hole 11 of the strap 1 and is latched on the main body 21 so that the strap 1 can be used, that is, the state shown in FIGS.
[0020]
The strap 1 is formed so that the length from the through hole 11 to the tip (the entire length of the retaining portion 10) is longer than the inner edge A and the base end edge B of the retaining portion 2A. 4 moves downward in FIG. 4, the retaining portion 10 hits the inner edge a, and conversely, when the shape retaining portion 13 moves upward in FIG. 4, the retaining portion 10 abuts against the base end edge B of the latching portion 2 </ b> A. Therefore, the vertical movement of the shape retaining portion 13 is restricted to a certain range.
[0021]
Therefore, after the strap 1 is hooked on the hooking portion 2A, the strap 1 will not come off the hooking portion 2A even if the strap 1 moves in the pulling direction with respect to the hooking portion 2A which is the vertical direction. .
[0022]
【The invention's effect】
According to the present invention, both the free end sides are overlapped and fused together to form a rigid portion, and the length from the through hole provided in the rigid portion to the distal end of the rigid portion is substantially C-shaped on the lever. By forming the hook portion longer than the length of the main portion and the tip, the strap lever can be prevented from being pulled out from the hook portion.
[0023]
For this reason, as in the conventional product in the previous period, after the strap is attached, a retaining member for preventing the strap from being pulled out becomes unnecessary, and the problems of the conventional product can be solved.
[0024]
Furthermore, the strap can be easily hooked on the lever by the rigid portion, and the through hole can be accurately opened by pressing or the like in the rigid portion.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vehicle seat using a strap according to the present invention.
FIG. 2 is a perspective view for explaining the attached state of the strap according to the present invention.
FIG. 3 is a sectional view of a strap according to the present invention and a plan view showing a latching portion of a lever.
FIG. 4 is a cross-sectional view showing a strap attachment state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Strap 2A Lever latching part 10 Rigid part 11 Through-hole 12 Operation part

Claims (1)

In the strap of the vehicle seat that is hooked to the hook portion formed in a substantially C shape of the unlocking lever,
The strap is composed of a rigid portion that overlaps both free ends of a single belt-like heat-fusible cloth body and fuses them together to open the through hole, and an annular operation portion that is integral with the rigid portion, The length from the leading end of the rigid portion to the through hole is formed longer than the length from the latching portion main body to the leading end of the latching portion main body, and from the latching portion provided on the lever. A vehicle seat strap structure that prevents the strap from being pulled out.

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