JP2583120Y2 - Fixed locking device for seat belt anchor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a seat belt anchor and, more particularly, to a technique for fixing a seat belt anchor securely even in a plurality of vehicle collisions.

[0002]

2. Description of the Related Art A conventional seat belt anchor locking device is disclosed in, for example, FIG.
No. 9). That is, the engine cover 3 is hinged on a service hole 2 formed above the engine 50 of the floor panel 1 via a hinge 4 so as to be openable and closable. A hole 3a is provided, and a bracket 5 is attached to the upper surface of the cover 3 at a position on the side of the long hole.

A hook 7 extending vertically through the bracket 3 through the elongated hole 3a is swingably supported via a pivot pin 9, and the seat belt anchor 6 is fixed to the upper end of the hook. On the other hand, a hook support 8 is provided on the swing locus of the hook 7 on the vehicle body strength member 10 so that when a predetermined tensile load is applied to the seat belt anchor 6 due to a vehicle collision or the like, the hook 7 is In conjunction with the anchor 6, it swings around the pivot pin 9 and is locked by the support 8.

Japanese Utility Model Laid-Open Publication No. Sho 62-178257 discloses a seat belt in which the shape and configuration of the hook and the support are changed so that the hook is securely locked to the support when a load is applied to the seat belt anchor. An anchoring device for the anchor is shown.

[0005]

Generally, in a vehicle collision or the like, a plurality of impacts including a recoil are transmitted to the vehicle, and even when a secondary collision occurs, the vehicle is subjected to a plurality of impacts. Often a large shock is transmitted. However, in such a conventional fixing lock device for a seat belt anchor, when the load is first applied to the seat belt anchor, the hook is locked by the support and the load can be transmitted to the vehicle body strength member. When the lock is released due to load, recoil, or secondary collision, if the hook, support, vehicle body strength member, etc. are deformed by the first impact, the hook is engaged with the support during the second and subsequent load input. There is a problem that the seat belt anchor is not stopped and does not function as a fixing lock device of the seat belt anchor.

Therefore, the present invention has been made in view of such a conventional problem, and even in the second and subsequent collisions,
An object of the present invention is to provide a seat belt anchor fixed lock device that is securely locked without detaching from a hook member and that can reliably transmit an input load to a vehicle body strength member.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention is a device for locking a seat belt anchor fixedly mounted on an engine cover of a vehicle and attaching a seat belt to a vehicle body, one end of which is attached to the seat belt anchor mounting point. An arm member fixed to the rear surface of the nearby engine cover and having the other end extending rearward of the vehicle and serving as a free end, and an engaging portion fixed to the vehicle body strength member and having a groove engageable with the free end of the arm member. A locking mechanism including a hook member, a stopper cover, a stopper member, and a spring, wherein the stopper cover is fixed to the hook member, and the stopper member and the spring are connected via a pin. is rotatably supported on the stopper cover, the spring, the one end stopper cover, the other end is respectively fixed to the stopper member Normally, the stopper member is urged in a direction to close the groove of the engaging portion of the hook member, and the stopper member is pushed out from the free end of the arm member when the free end of the arm member engages with the engaging portion. Retreating from the position where the groove of the engaging portion is closed, opening the groove of the engaging portion, and closing the groove of the engaging portion again when the engagement of the free end of the arm member with the engaging portion is completed. And a lock mechanism.

[0008]

According to the above construction, when a tensile load exceeding a certain level is applied to the anchor attachment point, the free end of the arm member swings due to the deformation of the engine cover, and the free end is hooked to the hook member.
The arm member engages with the engaging portion of the hook member by contacting the stopper member closing the groove of the engaging portion and pushing the stopper member to the position where the groove of the engaging portion is opened.

Since the stopper member is urged by a spring in a direction to close the groove of the engaging portion, the stopper member closes the groove of the engaging portion again, and the free end of the arm member is connected to the engaging portion of the hook member. It can be fixedly locked so that it cannot be removed. As a result, even in a plurality of collisions of the vehicle, the arm member can be securely engaged and the seat belt anchor can be locked to the vehicle body, so that the input load can be reliably transmitted to the vehicle body strength member. Can be.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. That is, in FIG. 1 and FIG.
A service hole 2 is provided above the engine 50 so that the engine 50 can be inspected. The engine cover 3 is pivotally connected to the floor panel 1 via a hinge 4 so as to cover the service hole. Is being worn.

An arm support member 31 is fixed to the lower surface of the engine cover 3 by, for example, welding, and a seat belt anchor 6 is provided on an upper surface of the engine cover 3 opposite to the position where the arm support member is attached. Bolt 3
2 and the nut 33 are integrally fixed to the engine cover 3 and the arm support 31. Also, the arm support member 31
, One end 30a of an arm member 30 is fixed by welding, the other end 30b of the arm member 30 extends rearward of the vehicle, and the tip end is a free end.

The hook member 20 is fixed to the vehicle body strength member by welding, for example, and an engagement portion 21 having a groove 21A for receiving the end 30b of the arm member 30 is provided at the lower end of the hook member 20. is there. The lock mechanism 40 includes a stopper member 41, a spring 42, and a stopper cover 43, and is fixed to the hook member 20.

The stopper cover 43 is provided with the hook member 2.
The stopper member 41 and the spring 42 are fixed to the stopper cover 43 via a pin 44.
Is rotatably supported. And the spring 42
Has one end on the stopper cover 43 and the other end on the stopper member 4.
1 and the stopper member 41 is always
It is urged in a direction to close the groove 21A . Incidentally, the stopper <br/> path member 41 has its rear portion 41a is a stopper cover 43
Contact portion 43a of the engaging portion 21 in normal times.
It stands still with the groove 21A closed.

Next, the operation of the present invention will be described with reference to FIG. First, when a certain tensile load A or more is input to the seat belt anchor 6 due to a collision of a vehicle or the like, the engine cover 3 is deformed, and accordingly, the arm support member 31 and the arm member 30 fixed to the seat belt anchor 6. by but swings, the free end of the arm member 30 is brought into contact with the stopper member 41, pushes in the direction of opening the groove 21A of the engaging portion 21 to indicate the stopper member 41 in the arrow B, the arm member 3 And the hook member 20 are engaged with each other by the engaging portion 21. The load A input to the seat belt anchor 6 is transmitted from the arm member 30 to the vehicle strength member 10 via the hook member 20.

Next, after the engagement of the arm member 30 and the hook member 20 is completed, the stopper member 41 is biased in a direction to close the grooves 21A of the engaging portion 21 of the engaging portion 21 again
The groove 21A is closed, and thereafter the stopper member 41 is
In order to reliably hold 0, the engagement between the arm member 30 and the hook member 20 is not released. As a result, the engagement state of the arm member 30 is ensured even in a plurality of collisions of the vehicle.
Actually, the seat belt anchor can be fixedly locked to the vehicle body, so that the input load can be reliably transmitted to the vehicle body strength member.

[0016]

[Effects of the Invention] As described above, according to the present invention,
The engagement between the arm member and the hook member, the arm member free end
When the hook member is engaged with the engaging portion, the hook member is pushed from the free end.
And retreats from the position where the groove of the engaging portion is closed, and
The groove of the arm member is released, and the free end of the arm member is engaged with the engaging portion.
A stopper configured to close the groove of the engagement portion again when the joining is completed
Since the engagement between the arm member and the hook member is not released by locking with the locking mechanism having the member , even when the load is applied to the seat belt anchor a plurality of times, the load is reliably applied to the vehicle body strength. It can be transmitted to members. Therefore, the safety of the vehicle can be improved by using the seat belt anchor fixing lock device of the present invention.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a lock mechanism of FIG. 1;

FIG. 3 is a cross-sectional view showing a conventional seat belt anchor fixing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor panel 2 Service hole 3 Engine cover 6 Seat belt anchor 10 Body strength member 20 Hook member 30 Arm member 40 Lock mechanism 41 Stopper member 50 Engine

Claims (1)

(57) [Scope of request for utility model registration] 1. A device for locking a seat belt anchor fixedly attached to an engine cover of a vehicle and attaching a seat belt to a vehicle body, wherein one end is fixed to a back surface of the engine cover near the seat belt anchor attachment point, and the other end. An arm member extending rearward of the vehicle to be a free end; a hook member fixed to a vehicle body strength member and having an engaging portion having a groove capable of engaging the free end of the arm member; a stopper cover; And a spring, wherein the stopper cover is fixed to a hook member, and the stopper member and the spring are rotatably supported by the stopper cover via a pin. The spring has a stopper cover at one end .
The other end is fixed to the stopper member, and the stopper member is normally urged in a direction to close the groove of the engaging portion of the hook member, and the stopper member is engaged with the free end of the arm member. At the time of the engagement operation with the engaging portion, the groove is pushed out of the free end and retracted from the position where the groove of the engaging portion is closed to open the groove of the engaging portion. And a lock mechanism configured to close the groove of the engagement portion again when the engagement is completed.