JPH0722359Y2 - Adjusting device for safety belt connecting points - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a guide member having a connecting portion can be moved and adjusted in a guide rail held in a vehicle body portion, and a spring-biased engaging claw is provided in a notch of the guide rail. By engaging with, it is possible to lock at different positions, and by intentionally operating the operating element, the guide member can be disengaged from the locking position, and the guide member is fixedly held at the locking position. Locking device is provided for adjusting the connecting point of the safety belt.

Adjustment devices of this kind are known which are capable of adjusting the connection points of safety belts, in particular the shoulder connection points of diagonal shoulder belts or three-point belts. In the case of this adjusting device, a spring-biased pawl is provided, which in the locking position engages a notch in the guide rail and fixes the position of the belt connecting point. In order to adjust the connecting point to another position, the engaging pawl must be disengaged from its engaging position and the guide member must be slid in the guide rail by operating the operating element. . Since the actuating element remains actuated during this adjustment, the selection of a suitable locking position-which in this position positively engages the notch of the guide rail provided with the engaging pawl-is not always guaranteed. That is, since the engaging claw is disengaged by the continuous operation of the operating element, the belt user cannot know where the locking position is at each time. As a result, it may be adjusted to an intermediate position by the adjusting device, and at this intermediate position, the engaging claws do not engage with the notches in the guide rails, and as a result, the transmission of the belt holding force generated when the passenger is held is transmitted. Certainly not done. The guide member enters the next locking position in the direction of the belt force when the belt force is generated,
Thereby, the desired belt position changes.

Further, Japanese Patent Application Laid-Open No. 58-194644 discloses an adjusting device provided with locking means for fixing and holding the guide member in the locked position. Since this locking means is formed by a detent lever (or detent element) for locking and a spring for biasing this detent lever, it has a drawback that the structure is complicated and the manufacturing cost is high.

The problem to be solved by the present invention is to adjust the safety belt connecting point even when the engaging claw is removed by the operation of the operation element.
To ensure that the desired locking position is known each time, and to reduce the number of parts and the manufacturing cost.

In this adjustment device for the safety belt connecting point, the locking means is formed as a position-adjustable spring element together with the guide member, which engages a notch provided in the guide rail in the locking position. Will be solved by

In the present invention, the locking means for fixing and holding the guide member in the locked position functions independently of the engagement pawls biased by the spring. In this case, the locking means connects the guide member and the guide rail in the locked position. Thereby, even when the engaging claw is removed, the preliminary fixing and holding of the guide member is achieved at each locking position, so that the locking position can be surely known. Therefore, the handling operation of the adjusting device, in particular the alignment of the engaging pawl with the locking position, is greatly simplified and facilitated. Moreover, since the locking means itself is formed as a spring, only one part is required. Therefore, the structure and fabrication are very simple.

The drawing shows an embodiment of the present invention. Hereinafter, this embodiment will be described in detail.

In the figure, 1 is an adjusting device, 2 is a substantially U-shaped guide rail, 3 is a guide member slidably held in the guide rail, 4 is an engaging claw that is swingably held in the guide member,
Reference numeral 5 is an operating element for releasing the engagement of the engaging claws, and 6 is a spring for urging the engaging claws. Such a belt connecting point adjusting device, i.e., a belt hinge point adjusting device, is provided especially for adjusting a turning point of a conventional three-point safety belt attached to a shoulder of an occupant seated in a vehicle. . The adjustment of this shoulder joint is performed almost vertically. The guide rails are preferably vertically oriented and fixed to a lateral part of the vehicle, for example a B-pillar.

The U-shaped guide rail 2 comprises a bottom plate 8 and lateral portions 9 extending perpendicularly to the bottom plate 8. The edge 10 of this lateral part is bent into the shape of an open box. Guide rail 2
The bottom plate 8 is provided with a hole 11 for fixing the guide rail to the vehicle portion using the fixing bolt 7. The fixing of the guide rails to the vehicle frame part, however, can be done in other ways, such as by hooking, clamping or welding.

The guide rail 2 has a protrusion 21 that is bent into a hook shape of the engaging claw 4.
A notch or recess 12 that engages with. In the illustrated embodiment, this cutout 12 is provided in the area of the bottom plate 8. In this case, in order to be able to adjust the guide member 3 to various positions in the guide rail 2, a large number of notches 12 are provided at regular intervals.

The guide member 3 slidably held in the guide rail 2 is
In particular, as can be seen from FIG. 3, it is also formed in a U shape,
It also has a bottom plate 13 and two side walls 14. In this case, the guide member is sized so that the guide member 3 can be adjusted with a small play in the guide rail 2.
The guidance of the guide member 3 in the guide rail 2 is improved by a longitudinally extending curved slide 42 formed on the side wall 14 and the bottom plate 13 by stamping. This curved sliding portion makes linear contact with the guide rail 2 over the entire length.

The bottom plate 13 of the guide member 3 has a slit-shaped first through hole 15. The projection 21 of the engaging claw 4 passes through the through hole 15 and engages with the notch 12 of the guide rail 2. That is, this through hole 15
In the locked position of the guide member 3, corresponds to the notch 12 of the guide rail 2 attached at this position. Guide member 3
The second notch 16 in the bottom plate 13 of the seat corresponds to the notch 12 in the guide rail 2 in the locked position. This notch is adjacent to the notch with which the projection 21 of the locking pawl 4 engages for locking.

An eye 17 is further formed on the bottom plate 13 of the guide member 3. This eye functions as a belt connecting point for fixing a belt direction changing metal fitting (not shown) with a fixing bolt.

The side wall 14 of the guide member 3 is provided with notches 18, 19, 24. The notches 19 and 24 are wing-shaped standing portions or protruding portions 22 and 23.
Is formed to accommodate. The protrusions are provided as bearings and guide elements on both sides of the engaging pawl 4 formed by the plate-shaped intermediate part 20. The notches 18 engage the lateral wings of the plate-shaped release portion 27 of the operating element 5. At that time, the plate-shaped releasing portion 27 is integrally connected to the key portion 26 of the operating element. In the illustrated embodiment, the key portion 26 is bent upwards at a right angle from the center of the plate-shaped release portion 27, and the release portion extends like wings toward both end surfaces of the key portion 26. Both wings of the plate-shaped releasing portion 27 are engaged with the bottom plate 13 of the guide member 3 and the engaging projections 21.
Wing-like extension of the plate-like intermediate portion 20 of the engaging claw 4 provided beside the
Located between 25 and. The actuating element 5 can be operated by applying an adjusting force to the key portion 26 in the direction of the arrow 40 or 41, ie in the adjusting direction of the guide portion 3. During this operation, the plate-shaped release part 27 oscillates around one of its two longitudinal edges 28 or 29 and the other longitudinal edge opposes the action of the spring 6 and causes the engagement pawl 4 to move. Lift up and disengage from the engaged position.

The spring 6 for urging the engaging claw 4 is formed as a leaf spring in the case of the illustrated embodiment. The tongue-shaped end 30 of this leaf spring
The engaging projection 21 on the guide member 3 and the notch 1 on the guide rail 2.
5. The plate-shaped central portion 20 of the engaging claw 4 for engaging with 12.
Press. The spring 6 is provided at its other end with a plate-shaped portion 32 formed in a substantially ring shape. The dish-shaped portion surrounds the fixed eye 17 of the guide member 3, and its hook-shaped end portion 31 is hooked on the edge of the engaging claw 4. On the inner edge of the ring-shaped plate portion 32, teeth 33 directed inward are provided. These teeth elastically contact the outer circumference of the fixed eye 17 and fix the spring 6 to the guide member 3. By this fixing of the spring 6, the engaging pawl 4 is held together, and by means of the plate-shaped release part 27 the operating element 5 held between the engaging pawl 4 and the guide part 3 is held together with the engaging pawl. To be assembled to the guide rail as a whole. At that time, the hook-shaped end portion 31 of the spring 6 is guided by the guide member 3.
By abutting the bottom plate of the, the height of the structural unit and the cooperating action of the individual spring-biased parts are determined.

The leaf spring 6 further comprises lateral wing-shaped uprights 34. This erected portion is bent a plurality of times and has elasticity in the lateral direction with respect to the surface of the spring 6. The upright portion 34 has a notch 39 beside the engaging claw 4.
Through the notch 16 provided in the bottom plate 13 of the guide member 3, and engages with the notch 12 of the guide rail 2 therebelow. At this time, the end portion 35 of the elastic standing portion 34 is bent into a barrel shape in two planes, for example. In this case, only part of the contour engages the notch 12 in the guide rail 2. Therefore, when a suitable force acts in the longitudinal direction of the guide member 3, the end 35 retracts, allowing the guide member 3 to slide in the guide rail 2.

Further, 36 is a chamfered portion or an indented portion formed on the bottom plate 8 of the guide rail 2 in the range of the notch 12. This chamfered portion or indented portion is few and facilitates the engagement of the hook-shaped bent projection 21 of the engaging claw 4 when the co-guide member is adjusted downward. At this time, the indented portion 36 guides the engagement claw projection 21 biased by the spring to the next notch 12.

Reference numerals 37 and 38 respectively denote arcuate recesses formed on the upper end face of the bottom plate 13 of the guide member 3 and the release portion 27 of the operating element 5 in the figure. This recess serves to easily engage the head of a fixing bolt, indicated at 7, for fixing the guide rail 2 to the vehicle lateral part at the uppermost position of the adjusting device 1.

The head of the fixing bolt 7 at the same time forms a stopper for limiting the longitudinal movement of the guide part 3.

The adjustment of the adjusting device shown in the figure is performed as follows.
That is, the operation key 26 of the operation element 5 is operated by the arrow 40 or 41 in order to adjust downward or upward according to the occupant's desire.
It is done by pushing toward. By this adjusting operation, the engaging pawl 4 is disengaged from its engaging position in a very favorable manner, and at the same time the adjusting of the guide member 3 in the guide rail takes place in the desired adjusting direction. That is, it is not necessary to separately perform the releasing operation and the adjusting operation in different directions. During the adjustment, after the engagement pawl 4 is disengaged from its engagement position, the guide member 3 is moved until the desired position of the guide member 3 adapted to the respective passenger is reached.

The selection of the locking position within this range-the engagement protrusion 21 of the engagement claw 4 engages with the notch 12 of the guide rail 2 at this position-
Fixing and holding the locking position in advance by the standing portion 34 on the side of the leaf spring 6 acting as a locking means (preset).
Makes it easier. That is, the ends 35 of the leaf springs bent in a barrel shape respectively engage with the notches 12 of the guide rail 2 through the notches 16 provided at the sides of the bottom plate 13 of the guide member 3 in the locked position. To do. This notch is the notch 12 adjacent to the notch 12 with which the engaging projection 21 of the engaging claw 4 engages. The pre-fixed hold, i.e. the preset, can be released at any time by applying a longitudinal force to the guide member 3. At that time, the barrel-shaped bent end portion 35 of the spring standing portion 34 is disengaged from the notch 12. This facilitates the selection of a suitable locking position in any case. Because
By applying a sliding force to the operating key 26 of the operating element 5 and slidingly operating the guide member 3, the engaging claw 4 is brought to the disengaged position and is held in this disengaged position during sliding. This is because that. It is basically possible to engage the locking means formed by the spring uprights 34 with the guide rail in other positions too, but here it engages with the next notch 12 in the guide rail. This results in a simple structure. in this case,
Notch necessary for engaging the engaging projection 21 of the engaging claw 4
It is necessary to enlarge the slit-like shape of 12a by means of the lateral recess 12b.

The elastic locking means for pre-fixing and holding the guide member could also be achieved and constructed in other ways. In the embodiment according to the present invention, this locking means is provided by the leaf spring 6.
In this locking means, the guide member 3, the engaging claw 4, the operating member 5 and the spring 6 are integrated into one structure in addition to the function of the spring for urging the engaging claw 4. It is provided with the function of assembling into a unit and the function of fixing the locking position in advance. Thereby, the adjusting device is relatively simple to construct and is made up of a very small number of components made by stamping and bending and is made very flat. Furthermore, the adjusting device is very easy to operate, easy to handle and reliable.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a belt connecting point adjusting device according to the present invention, FIG. 2 is a longitudinal sectional view of the adjusting device of FIG. 1 along a cutting line II-II, and FIG. 3 is a cutting line III-. Along line III,
It is sectional drawing of the height position of the claw member of the adjusting device of FIG. 2 ... Guide rail 3 ... Guide member 4 ... Engaging claw 6 ... Spring 12,16 ... Notch 34, 35 ... Spring element

Claims (4)

[Scope of utility model registration request] 1. A guide member having a connecting portion is movable and adjustable in a guide rail held on a vehicle body portion, and a spring-biased engaging pawl is engaged with a notch in the guide rail. , Lockable at different positions, the guide member can be removed from the locked position by intentionally operating the operating element, and a locking means for fixing and holding the guide member in the locked position is provided. A device for adjusting a safety belt connecting point provided on a vehicle body part, wherein a locking means engages a notch (12) provided on the guide rail (2) in a locked position. Adjusting device for the safety belt connection, characterized in that it is formed with (3) as a spring element (34, 35) with adjustable position. 2. A spring element (34, 35) is integrally connected to a spring (6) for urging a locking pawl (4), and a guide member (3).
The safety belt connecting point adjusting device according to claim 1, wherein the adjusting device passes through a notch (16) formed in the. 3. Safety belt according to claim 2, characterized in that the spring element is formed by the elastic wing-like member (34) of the spring (6) formed as a leaf spring. Adjustment device for connecting points. 4. A substantially barrel-shaped bent end (35) in which an elastic wing-like member (34) engages in the notches (12, 16) of the guide member (3) and the guide rail (2). ) Is provided, the safety belt connecting point adjusting device according to claim 3 of the present invention.