JPS5814131Y2 - Mobile anchor locking device - Google Patents

Description

[Detailed description of the invention] This invention enables a movable anchor member that moves along a guide rail provided on the roof side or inside the door to be automatically locked in conjunction with the opening and closing of the door, and is effective in emergency situations. This invention relates to an anchor lock opening/closing device for a passive belt device that is automatically locked.

Passive belt devices that automatically restrain and release occupants in conjunction with the opening and closing of a door were initially commonly used with a slider slidably attached to a guide rail installed along the inner surface of the roof side. In many cases, a method was adopted in which a through ring was connected to the belt and the belt was inserted through the ring to move the belt to the retracted position.
When this type of belt is retracted, the friction between the through ring and the belt web often causes fluff to form on the surface of the belt web, making it virtually impossible to use it as a belt. Many attempts have been made to use a so-called movable anchor type in which an anchor member installed on the side is a movable anchor.

This one-type movable anchor eliminates the need for a through ring like the conventional one, so it does not cause fuzz on the belt web, and the shape of the movable anchor prevents the belt from rubbing against your cheeks, and prevents the belt from hanging around your neck when worn. However, on the other hand, the drive mechanism for the movable anchor member is complicated, which poses problems in terms of cost and mechanism. It is difficult to fix the movable anchor member by pressing the button, and this problem becomes more noticeable in the case of the knotted type without a center pillar, and has become an issue in the widespread use of passive belt devices.

Therefore, the inventor responded to the above-mentioned situation by simplifying the mechanism of the one-way movable anchor type and ensuring safety by reliably restraining the occupants. The movable anchor is composed of a pair of members, and when one of the members is dragged by the driving member and moves forward from the restraining position, the pawl is First, after moving to the disengaged position, other members are moved with a delay in the sliding range, while when other members are pushed by the driving member and moved backward, the delay is first canceled and the other members move together. We have proposed an automatic opening/closing locking device in which the pawl is engaged with both members in the restraint position to enable the locking state, and the former member is moved by tension of the emergency belt to achieve the locked state.

The present invention further expands on the above proposal to simplify the mechanism, improve locking reliability, and at the same time increase versatility.The movable anchor and locking member are engaged by an engaging recess and a retaining pin. It is also based on a configuration that uses a locking structure using an elastic spring to prevent release in an emergency.

Hereinafter, the structure of the present invention will be further explained in detail based on embodiments shown in the accompanying drawings.

Fig. 1 shows an example of a passive helmet mechanism to which the locking device of the present invention is attached, in which 1 is the vehicle body, 2 is the door, and 3
is a seat, 4 is a knee pad installed at the bottom of the instrument in front of the seat 3, and 5 is a normal emergency lock retractor that is pulled out from 6 and has a winding prevention device that also serves as a guide at any time (not shown). The upper end of the shoulder belt 5 rises from the center pillar, that is, the middle part of the B-pillar 11 as a restraint position, and extends diagonally upward from the center side of the vehicle body of the seat 3 across the seat 3. It is fixed to a belt attachment hole 8 provided in a movable anchor I that moves back and forth by a guide rail 13 provided downward along the side surface near the front pillar, that is, the A-pillar.

As shown in the figure, the movable anchor 7 has a forward-slanted belt connecting portion to provide good restraint and release, and can be rotated in forward and reverse directions by opening and closing a door provided below the B-pillar 11. The drive member 15 is connected to the front end of a drive member 15 which is connected to and operated by a drive source motor 14, moves back and forth along the guide rail 13, and is rotatably mounted on a locking pin 10 at a restraining position at its rear end. It has a structure that can be engaged with the locking member 9.

The detailed structure includes a first member 7a that moves along the guide rail 13 with movable wheels 16 and 16' mounted on shafts 17 and 17', and a first member 7a that moves along the guide rail 13. A long hole 18 is formed in the shaft 17' of the rear movable wheel 17 of the member 7a.
The second member 7b is engaged with the first member 7b.
The member has a restraint belt 5 fixedly attached to its belt insertion hole 8, and a curved engagement recess 7c is provided at an adjacent position along the guide rail 13, and the inner wall of the engagement recess 7c is closed. A double receiving recess 7d is formed in the lower part to lock the tip of a lock tooth of a lock member, which will be described later.

On the other hand, the second member 7b is inserted into the first member 1a through the shaft 17' through the elongated hole 18 as described above, and slides relative to the first member 7a due to the length of the elongated hole 18. A locking member is provided on the inner circumferential surface thereof and is spring-biased when the movable anchor 7 returns to the restraining position in accordance with the teeth of the locking member 9, which will be described later. A pushing part that pushes out the locking member 9 to reach a secure locking position, and a releasing part that releases the spring-biased locking member 9 when the movable anchor I moves from the restraining position to the releasing position form a cam surface. It is formed.

As described above, this second member 7b is driven at its rear end by an electrical or mechanical actuation mechanism whose rotation is amplified by the opening distance between the vehicle body 1 and the door 2, which operates in conjunction with the opening and closing of the door 2. The front end of the drawer of a drive member, such as a racked wire, is connected.

It is desirable to prevent noise in these drive mechanisms, so various soundproofing treatments are applied.
For example, the inside of the guide rail is lined, the racked wire is coated, the slider is molded with synthetic resin, etc.

Of course, this noise processing applies not only when the drive mechanism is mechanical but also when the drive mechanism is electrically actuated.

Next, the locking member 9 that engages with the movable anchor 7 is provided close to the guide rail 13 so that the movable anchor 7 is located in the occupant restraining position moved rearward,
A leaf spring 2 is rotatably attached to the engagement pin 10, has a locking tooth tip 19 at the lower part, and is fixed to a mounting seat 20.
It is biased towards the +h side by an elastic spring such as 1.

In this case, the tooth tip 19 is the double receiving recess 7 of the movable anchor I.
This corresponds to d.

Based on the structure of the movable anchor I and the locking member 9 as described above, the two are connected, and the automatic locking and emergency locking effects that are the characteristics of the present invention can be obtained.

In addition, in the configuration of the present invention, the first member 7a and the second member 7
It is extremely effective to create a sliding delay between the two by providing a margin for slightly shifting the two.
When the anchor member 7b is pushed by the drive member 15 and moves forward from the restraining position, the tooth tip 19 of the locking member 9 is first disengaged to disengage it, and then the first member 7a is pushed up, and When the second member 7b is pulled by the drive member 15 and moves rearward, the delay described above is first eliminated, and then the second member 7b begins to move together, providing the effect of engaging at the restraining position.

In reality, when the movable anchor I consisting of the first and second members engages with the locking member 9, it should be in a lockable state with some margin, but due to the displacement of the vehicle body in an emergency, the belt may When a tensile force is applied, the first member 7a
is pulled to create a secure locked state.

When a locking device configured as described above is installed,
The operation will be explained based on FIGS. 2, 4, 5, etc. When the door 2 is in the closed state and the movable anchor member I is in the restraining position and restraining the occupant normally. is the engagement pin 1 of the locking member 9 as shown in FIG.
0 engages with the engagement recess 7c of the movable anchor 7, and at the same time, the tooth tip 19 of the lock member 9 engages with the double receiving recess 7d of the movable anchor 7.
This engagement will not come off even in an emergency.

When the passenger opens the door to get on and off from this state, the door open/close switch causes the motor 14 to rotate forward and push up the drive member 15, causing the second member 7b of the movable anchor 7 connected to this to move into its long groove 18. The shaft 17' is moved upward and the locking member 9 is released from its tooth tip by the releasing part on the circumferential surface, and the shaft 17' is relatively retreated. Thereafter, it is integrated with the first member 7a and attached to the guide rail 13 in the state shown in FIG. The belt can be moved forward along the belt to the retracted position.

Note that by lowering the position of the belt connecting portion of the movable anchor I, the fear of hanging can be eliminated.

Next, in the process from the open state of the door 2 to the closed state of the door 2, the driving member is pulled backward by the reverse rotation of the motor.
At the same time, the movable anchor I also moves rearward, and the engagement recess 7
c engages with the engagement pin 10 of the locking member, the first member 7a stops.

However, the second member 7b continues to move due to the presence of the long groove 18, and the tip 19 is pushed away by the pushing part on the circumferential surface, and the tip 19 engages with the flesh-receiving recess 7d and stops.

In this way, the belt is automatically engaged in the restraining position vc1, and is automatically released when the door is opened, allowing for smooth release of the belt, and ensuring safety for the occupants by securely locking the belt. I can do it.

Although the above description has been made based on the belt system shown in FIG. 1, the device of the present invention can be applied not only to the case where the guide rail 13 is provided on the roof side 12 but also to other cases.

That is, in FIG. 6, the guide rail 22 that guides the movable anchor 7 along the inner surface of the door stands up with the lower part of the door release side as the restraining position, and is bent diagonally forward inside the door 2 to reach the release position of the front end near the hinge part. In this case as well, the movable member can be held in the restrained position or moved forward to the released position by the same action as described above through the driving member 15 by rotating the motor 14 in the forward and reverse directions.

In this case, the restraining belt 5' guided by the movable anchor is usually a waist belt.

Further, in FIG. 7, the restraint belt is formed of a shoulder belt and a waist belt as one continuous belt, and the turning portions of both belts are folded back by a through ring 23, and an inner guide belt 24 is stopped by the through ring 23. This is a case where the device of the present invention is applied to a three-point restraint belt system connected to an emergency lock retractor 6 installed at the center of the vehicle. This is a combination of the structure in which a rail is provided and the structure in which a guide rail is provided on the inner surface of the door shown in FIG. 6, and since it is sufficiently clear from the above description of both, the details will be omitted.

Note that in FIGS. 6 and 7, the same reference numerals as in the previous figures indicate the same parts.

Furthermore, it goes without saying that, in addition to the above description, the present invention may be modified at any time to the same effect or to changes in design without departing from its purpose.

Since the device of the present invention is configured as described above, it is possible to automatically engage and unlock the movable anchor in conjunction with the opening and closing of the door, and also enables emergency locking. By simplifying the coupling mechanism, it is easy to reduce costs and save labor in car assembly, and it has the effect of ensuring the safety of occupants with seat belts, and has a long-lasting effect compared to the conventional movable anchor lock system. This is extremely useful in ensuring certainty.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing how the device of the present invention is used;
The figure is an enlarged view of the main part, Figure 3 is a sectional view taken along the line X-X in Figure 2,
FIG. 4 is a partial side view showing the mode immediately before the movable anchor and the lock member are engaged or disengaged, FIG. 5 is a partially omitted explanatory view showing the state when the movable anchor moves forward, and FIG.
7 and 7 are schematic diagrams showing other usage modes of the device of the present invention, respectively. 1...Vehicle body, 2...Door, 3...
... Seat, 4... Knee pad, 5.5'...
...Restraint belt, 6...Retractor-7.
...Moving anchor 7a...First member,
7b...Second member, 1c...Engaging recess, 7d...Fitting recess, 9...Lock member, 10... Engagement pin, 12... Roof side, 13, 22... Guide rail, 14
...Motor, 15...Driving member, 1
6, 16'...Moving wheel, 17, 17'...
...Moving wheel shaft, 18...Sliding long groove, 19
...Tooth tip of locking member, 21...Elastic spring, 23...Through ring, 24...
・Inner guide belt.

Claims (1)

[Claims for Utility Model Registration] (1) An engaging recess is provided in the movable anchor of the passive belt that reciprocates along the guide rail, and an engaging pin is provided in the vehicle member at the stop position that is pressed when the belt of the movable anchor is restrained. The locking member is rotatably attached to the movable anchor, and when engaged, the engaging concave portion is engaged with the engaging pin, and the movable anchor and the locking member are elastically engaged to prevent release in an emergency. A lock opening/closing device for a movable anchor, characterized in that it is configured to be locked by moving the anchor. (2) A movable anchor is attached to the front end of the drive member that responds to the opening and closing of the door, supports the end of the restraint belt, and moves back and forth along the guide rail between the restraint position and the release position by the operation that responds to the opening and closing of the door. The anchor is movable, and is composed of a pair of members, a second member connected to a driving member, and a first member that moves with a delay within a predetermined range relative to the second member, and has moving wheels to guide the anchor. A lock opening/closing device for a movable anchor according to claim 1, wherein the first member is provided with an engaging recess so as to be able to slide within the rail. (3) Registration of a utility model in which the delay in movement of the first member relative to the second member is caused by the relative sliding of the shaft of the movable wheel provided on the first member inserted into the long sliding groove of the second member. A lock opening/closing device for a movable anchor according to claim 2. (4) A utility model in which the movable anchor and the lock member are elastically engaged and disengaged by fitting and disengaging the tip of the spring-biased lock member into a double-receiving recess provided corresponding to the first member of the movable anchor. A lock opening/closing device for a movable anchor according to claim 1, 2, or 3. (5) The second member of the movable anchor includes a pushing part that pushes away the spring-biased locking member when the movable anchor returns to the restraining position, and a spring-biased pushing part that pushes away the spring-biased locking member when the movable anchor returns to the restraining position. Claim 2 of the utility model registration claim, which is provided with a release part for releasing the locked lock member,
The lock opening/closing device for a movable anchor according to item 3 or 4. (6) The guide rail that guides the movable anchor stands up with the middle part of the B-pillar as the rear-end restraining position, bends along the loop, and the front end is near the A-pillar! A lock opening/closing device for a movable anchor as set forth in any one of claims 1 to 5 of the claims 1 to 5, wherein the lock opening/closing device is extended to a released position. (7) A lock opening/closing device for a movable anchor as set forth in any one of claims 1 to 6, wherein the restraint belt guided by the movable anchor is a shoulder belt. (8) Practical use in which the rear end of the guide rail that guides the movable anchor rises from the lower part of the release side of the door 2 as a restraint position, bends and extends inside the door with oblique forward force, and the front end reaches near the hinge and becomes the release position. Scope of claims for patent registration Paragraphs 1 to 5
A lock opening/closing device for a movable anchor as described in any of the following paragraphs. (9) The movable anchor according to claim 1, 2, 3, 4, 5 or 8, wherein the restraint belt guided by the movable anchor is a waist belt. Lock opening/closing device. The driving source of the driving member that responds to the door is a mechanical driving source whose rotation is amplified by the opening distance between the vehicle body and the door. A lock opening/closing device for a movable anchor as described in Section 1. αυ A lock opening/closing device for a movable anchor according to any one of claims 1 to 9, wherein the drive source of the drive member responsive to the door is electrically actuated. (The 121 restraint belt is a single continuous belt consisting of a shoulder belt and a waist belt, and the turning point of both belts is folded back at one side of the through ring, and an inner guide belt is fixed to the other side of the through ring. The movable anchor according to any one of claims 1 to 11, which is a three-point restraint belt system that is wound around an emergency locking retractor provided on the inner side and can be freely pulled out. Lock opening/closing device. (13) Lock opening/closing of a movable anchor as described in each of the claims 1 to 12 of the utility model registration claims, which has a knee pad for protecting the knees of an occupant in front of the seat of the vehicle. Device.