JP4287729B2 - Shoulder adjuster - Google Patents

Description

  The present invention relates to a shoulder adjuster device that is mounted on a vehicle and adjusts the height of a through anchor of a seat belt device for ensuring the safety of a passenger.

  Automobiles are required to be fitted with a seat belt device to protect the safety of passengers. When the occupant sets the seat belt (webbing) by operating the seat belt device, there is a possibility that a so-called neck hanging phenomenon due to the webbing may occur depending on the seating height of the occupant. In order to prevent this neck hanging phenomenon and to guarantee a comfortable drive, various shoulder adjuster devices capable of adjusting the height position of the through anchor according to the seating height of the occupant have been proposed.

Among these types of shoulder adjuster devices, there are a seat belt anchor device and a through anchor device proposed by the present inventor as a shoulder adjuster device (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).
JP 2001-341614 JP-A-2-79445 Japanese Patent Laid-Open No. 5-294208

  Since the shoulder adjuster device has sufficient impact resistance when an excessive load is applied, the shoulder adjuster device is formed of a highly rigid material having excellent strength.

  In recent years, ensuring safety particularly in the event of a side collision with a vehicle has been an issue. In the case of this side collision, it is pointed out that the passenger's head may collide with the through-anchor and be damaged. Therefore, in the case of a side collision, the technology for reducing the impact on the passenger and ensuring the safety of the passenger is recognized as an extremely important theme.

  In view of these circumstances, in order to ensure the safety of passengers, in recent years, automobiles tend to be equipped with side airbags. The side airbag is a functional member that is mounted on the inner side surface of the vehicle body, reduces the impact in the side direction on the occupant, and protects the occupant. In order to realize a smooth and normal operation of the side airbag, it is preferable that no obstacle is installed in the direction of inflation of the side airbag.

  However, the shoulder adjuster device is usually installed so as to protrude from the center pillar toward the interior space side because of the structure attached to the vehicle body center pillar. For this reason, when the side airbag is operated, the overhanging portion of the shoulder adjuster device from the center pillar interferes with the normal inflation of the side airbag.

  On the other hand, the shoulder adjuster device has a function of adjusting the height according to the seat height of the occupant, and has a structure having a button portion as an operation portion.The outer surface of the shoulder adjuster device on the interior space side is The button parts must be divided into parts.

  However, the shoulder adjuster device having the divided part shape increases the frictional resistance between the outer surface of the shoulder adjuster device and the airbag when the side air bag is operated, and particularly in the part dividing portion of the shoulder adjuster device. There may be cases where the function of the bag is disturbed. For example, the edge part of the part dividing part on the outer surface of the shoulder adjuster device is expected to damage the surface of the side airbag, and the fabric of the side airbag is trapped in the groove and the inflation itself is hindered. The normal functioning of the airbag may be hindered.

  In addition, if the friction coefficient is large, it is considered that the resin parts on the outer surface of the shoulder adjuster device melt due to the frictional heat of the fabric of the side airbag and the shoulder adjuster device. It was also expected that the height adjustment function would be hindered.

The present invention has been made in consideration of the above-described circumstances, and provides a shoulder adjuster device that ensures the safety of a passenger without preventing normal activation of a side airbag installed in an automobile. With the goal.

  In order to solve the above-described problems, the shoulder adjuster of the present invention is an adjuster that is fixed to a vehicle body frame in a shoulder adjuster that adjusts the webbing length by changing the fixing position of the through anchor according to the body shape of the occupant. A base, a sliding body on which the adjustment base is slidably attached, and a through anchor that is integrally joined to the sliding body and holds an intermediate portion of the webbing, and the sliding body slides on the adjustment base. A slide base that is movably engaged, a garnish that is fixed integrally with the slide base and constitutes a main body of the sliding body, a latch mechanism that adjusts and fixes the sliding body, and fixing the sliding body A button portion for operating the position adjustment, and the button portion is swingably attached to the garnish, and has a height of the sliding portion. By gripping the button portion during adjustment by swinging the button portion to release the latch mechanism and is characterized by being configured so as to slide the sliding portion.

According to the shoulder adjuster device of the present invention, it is possible to provide a shoulder adjuster device capable of improving the safety of the passenger without hindering the function of the side airbag.

  The best mode of the shoulder adjuster device of the present invention will be described in detail below with reference to the accompanying drawings.

  In addition, the term which shows a direction in the following structures and operation description shall show the direction at the time of the attachment to the vehicle body of a shoulder adjuster apparatus. That is, the vertical direction of the shoulder adjuster device indicates the vertical direction of the vehicle body, and the front direction indicates the vehicle interior space side. Further, the rear surface side indicates the direction opposite to the front direction, that is, the vehicle body mounting surface side of the shoulder adjuster device.

  FIG. 1 is a perspective view of a shoulder adjuster device 10 which is an embodiment of the present invention.

  The shoulder adjuster device 10 includes an adjustment base 1 that is integrally fixed to a vehicle body frame by fixing means such as bolts, a sliding body S that is engaged with the adjustment base 1 and is slidable in the vertical direction, and a sliding body. And a through anchor A fixed to S by a fixing means such as a bolt. A webbing (not shown) is slidably interposed in the guide portion of the through anchor A.

  FIG. 2 is an exploded perspective view of the shoulder adjuster device 10.

  The sliding body S includes a slide base 2, a garnish 3 integrally fixed to the slide base 4, a button portion 4, and a cover 5, and a main body case is formed. The button spring 6 and the sliding body S are placed in the main body case. A pin 7 that fixes the adjustment base 1 at a predetermined position and a spring 8 that urges the pin 7 by an elastic force to protrude are installed. The slide base 2 is fixed to the back surface of the garnish 3, that is, the adjustment base 1 attachment side, and the slide body S is provided so that the adjustment base 1 can slide.

  The detailed structure of the adjustment base 1 will be described with reference to FIGS.

  The adjustment base 1 is a metal member and has a structure that is gently curved along the longitudinal direction (vertical direction) corresponding to the center pillar of the vehicle body to be attached.

  These adjustment bases 1 have a curved shape in the longitudinal direction and bent shapes at both side edges, which take into account the secondary moment of the cross section and can withstand torsion and bending when a tensile load is generated in each direction. It is designed to be able to satisfactorily absorb energy deformation against impact.

  Further, both side edges in the width direction of the adjustment base 1 are bent at a substantially right angle from the mounting surface of the vehicle body to form a side wall portion 11, and the tip end portion of the side wall portion 11 is inside the adjustment base 1 having a bowl shape. The engaging portion 12 is formed so as to be slidable and held slidably by engaging the slide base 2.

  The corner portion formed by the engaging portion 12 and the side wall portion 11 is configured to form an acute angle. According to the present inventors, the angle of the corner is preferably provided in the range of 70 ° to 80 °. That is, in the cross-sectional view of the adjustment base 2 shown in FIG. 5, it is preferable that the angle θ with respect to the flat surface 13 of the engaging portion 12 is bent so as to be an angle of 10 ° to 20 °.

  Further, the angle θ with respect to the flat surface 13 of the engaging portion 12 is adjusted to 15 ° to 20 ° (that is, the angle of the corner portion formed by the engaging portion 12 and the side wall portion 11 is 75 ° to 80 °). Since the base 1 is particularly excellent in shock absorption, and the deformation of the adjust base 1 at the time of impact is more effectively prevented, the separation between the adjust base 1 and the slide base 2 is more reliably prevented even during a strong impact. .

  Further, mounting holes 14 for inserting bolts are formed at both ends of the adjusting base 1, and the adjusting base 1 is fixed to the vehicle body by the bolts 7 inserted through these mounting holes 14. A stopper 15 for stopping the slide base 2 formed by a cut-and-raised piece is provided in the vicinity of the attachment hole 14 on the lower end side of the adjustment base 1.

  A predetermined number of latch holes 16 are formed at equal intervals in the longitudinal direction in the center portion of the adjustment base 1, and the slide base 2 is positioned by selectively inserting the pins 7, that is, the height of the through anchor A is adjusted. Configured to be able to do so.

  The adjustment base 1 is formed with four latch holes 16 at the top and bottom, and a claw-shaped inclined piece 17 is disposed above the latch hole 16 so that only the upward movement of the pin 7 is performed. While it can be easily performed along the slope, the downward movement of the pin 7 cannot be performed unless the lower edge portion of the latch hole 16 is pulled out beyond a certain level.

  Moreover, the curved surface shape of the lower end portion of the latch hole 16 is perforated to the same curved surface shape as the tip curved surface shape of the pin 7, and the pin 7 can be brought into close contact when the through anchor A is fixed, so that the pin 7 can be stably held. It is.

  The structure of the slide base 2 will be described in detail with reference to FIG. 1 and FIGS.

  The slide base 2 is formed of a substantially rectangular flat plate having a slightly smaller cross section than the bowl-shaped space portion of the adjustment base 1 so as to engage with the adjustment base 1 and maintain good slidability. Both ends in the width direction of the slide base 1 (both left and right ends when the vehicle body is fixed) are bent in the in-vehicle direction when the vehicle body is mounted, and are provided with engaging portions 21 at a certain angle with respect to the flat surface 22 on the vehicle body mounting side. It is comprised so that (psi) may be made.

  The engaging portion 21 is configured to favorably engage following the shape of the engaging portion 12 of the adjustment base 1. Therefore, the bending angle θ of the engaging portion 21 is preferably provided in the range of 10 ° to 20 ° with respect to the flat surface 22 in accordance with the angle of the engaging portion 12 of the adjustment base 1.

  Further, the slide base 2 having the engaging portion 21 having the bending angle ψ in the range of 10 ° to 20 ° with respect to the flat surface 22 is particularly excellent in impact resistance of the engaging portion with the adjust base 1 and more. preferable.

  The slide base 2 provided in this way is inserted into the adjustment base 1 and the engagement portion 12 of the adjustment base 1 and the engagement portion 21 of the slide base 2 are engaged with each other, whereby the longitudinal direction of the adjustment base 1 is obtained. The slide base 2 can be slid along.

  Further, by bending both ends in the width direction of the slide base 2 in this way, the contact area with the adjust base 1 can be increased, and the strength at the time of impact is greatly improved.

  Two holes 23 and 24 are formed in a central portion of the flat plate portion 22 of the slide base 2 at positions spaced along the longitudinal direction. The hole 23 is located above the shoulder adjuster 10 in use, and is a hole through which the pin 7 is inserted. The hole 23 is formed at the center of the bottom of the concave portion that is recessed toward the side facing the adjustment base 1. It is formed. The outer edge portion of the hole 23 is an annular flat surface and functions as the pin contact portion 25.

  The hole 24 is located on the lower side of the slide base 2 when the shoulder adjuster 10 is in use, and an anchor nut 26 for screwing an anchor bolt for fixing the through anchor A is press-fitted and fixed to the hole 24. The anchor nut 26 is a cylindrical member having a flange portion 27 at an end thereof. The anchor nut 26 is press-fitted into the hole 24 from the back surface side (adjust base 1 side) of the slide base 2 and protrudes to the front surface side. The slide base 2 is integrated with the back surface of the slide base 2.

  The upper end portion side of the slide base 2 is slightly narrower than the entire flat plate portion 22 and protrudes in the longitudinal direction to form an attachment piece 28 for fixing the slide base 2 to the garnish 3.

  In this way, the engagement portion 12 of the adjustment base 1 is provided with an angle, and the engagement portions 21 having the same angle are provided at both ends of the slide base 2 that engage with the adjustment base 1. As a result, the deformation of the adjust base 1 and the slide base 2 is effectively prevented, so that the slide base 2 is reliably prevented from being separated from the adjust base 1 even during impact resistance. Therefore, the safety of the shoulder adjuster device 10 is greatly improved.

  The structure of the garnish 3 will be described in detail with reference to FIG. 1 and FIGS.

  9 is a plan view of the garnish 3, FIG. 10 is a side view of the garnish 3, FIG. 11 is a rear view of the garnish 3, FIGS. 12 and 13 are perspective views of the garnish 3, and FIGS. Show.

  The garnish 3 is an integrally formed member made of resin, and is a member constituting the back side of the main body of the sliding body S that slides on the adjustment base 1 together with the through anchor A. The slide base 2 is fixed to the back side of the garnish 3. Thus, the sliding body S is provided so as to be slidable in the vertical direction by being engaged with the adjustment rail 1.

  In the longitudinal direction of the slide base 2 mounting surface of the garnish 3, a slide base fitting portion 32 and a slide base locking portion 33 are provided in order to fix the slide base 2 vertically in the mounting direction.

  That is, the mounting piece 28 of the slide base 2 is fitted into a slide base fitting portion 32 that is a mounting portion between the garnish 3 and the slide base 2, and the lower end of the slide base 2 is connected to the slide base engaging portion 33 below the garnish 3. Engage with the hook to secure it in one piece.

  The fitting clearance between the slide base fitting portion 32 and the slide base engaging portion 33 with respect to the adjustment base 1 is preferably set to a value smaller than the clearance between the slide base 2 and the adjustment base 2. By constructing the garnish 3 in this way, the joint play between the resin garnish 3 and the metal adjustment base 1 as a whole is smaller than the joint play between the slide base 2 and the adjustment base 1 both made of metal. Therefore, it is possible to prevent a metal contact sound between the slide base 2 and the adjustment base 1 generated by vibration or the like.

  Further, the garnish 3 is provided with a button locking portion 34 and a spring mounting seat 35. The button portion 4 to be described later is fixed by a meshing structure with the button locking portion 34 when the height is fixed, and the sliding body S is adjusted by the operation of holding the button portion 4 and releasing this meshing structure. It is configured to be slidable on the top.

  On the back side of the garnish 3 (the body frame side when the shoulder adjuster device is attached), a bottomed cylindrical recess having the same diameter as the outer diameter of the spring 8 is formed, and the surface corresponding to the bottom surface of the recess is attached to the spring. Although functioning as a seat 35 (see FIGS. 13 and 14), a through hole 36 concentric with the spring mounting seat 35 is formed in the bottom surface of the recess, and a pin head of a pin 7 to be described later is formed in the through hole 36. It is inserted and abuts on the button part 4 to function as a latch mechanism.

  Further, a hinge portion 37 is provided above the garnish 3 when the vehicle body is mounted, and the button portion 4 and the cover 5 are swingably fixed to the hinge portion 37 by a hinge structure. 4 and the cover 5 swing and the sliding body S becomes slidable.

  A hole 38 is provided on the lower end side of the garnish 3 when the vehicle body is mounted, and the anchor nut 26 is fitted into the hole 38 when the slide base 2 is mounted.

  Hooks 39 are integrally provided on the left and right sides of the rising portion located at the upper edge of the hole 38 and have a function of limiting the swing angle of the button 4 and the cover 5.

  In this way, the slide base 2 and the garnish 3 integrally form the sliding body S and are slidably assembled to the adjustment base 1, the slide position is determined by the latch mechanism, and the height of the through anchor A is determined. Adjustment is possible.

  The latch mechanism includes a spring 8 and a pin 7, and the pin 7 is operated by the button portion 4. In the shoulder adjuster device 10 of the embodiment, the button portion 4 is provided with a function for operating pin latching and latch release.

  17 to 24 show the detailed structure of the button unit 4. The button part 4 is a resin-made molded member like the garnish 3, and is integrally attached to the garnish 3 so as to be swingable at a hinge part 37, and functions as an operation part when adjusting the height of the shoulder adjuster device 10. The button part 4 is provided with a pin action part 41 acting on the pin 7, and the function of the pin action part 41 operates to pull out and latch the pin 7.

  A grip portion 42 is provided on the side surface of the button portion 4 in order to improve the operability of the button portion 4, so that the grip property at the time of height adjustment can be improved and accurate height adjustment is possible. As shown in the partial cross-sectional view of FIG. 24, the side surface of the button portion 4 is urged outward as a bellows-like leaf spring structure, and when the button portion 4 is attached to the garnish 3, The engaging claw 43 of the button part 4 is configured to be engaged with the button locking part 34 of the garnish 3 so as to be engaged.

  The button part 4 is provided with a pair of left and right cover fixing parts 45 having a function of a joining piece with the cover 5, and the cover 5 and the button part 4 are integrally joined by the cover fixing part 45. A cover fixing claw 46 is provided on the inner surface of the cover fixing portion 45, and is engaged with a button fixing claw of the cover 5 described later, so that the button portion 4 and the cover 5 are integrated.

  Further, a joint portion 47 is provided at the upper end portion of the button portion 4 so as to join the hinge portion 37 of the garnish 3 so that the button portion can swing freely.

  Further, a button spring attachment groove 48 that engages the button spring 6 is provided on the front end surface of the cover fixing portion 45, and the button spring 6 is integrally attached. Further, the notch 49 provided at the lower end of the cover fixing part 45 is engaged with the hook 39 of the garnish 3 to determine the swing angle of the button part 4 and the cover 5.

  In the shoulder adjuster device 10, the hook 39 and the notch 49 are engaged with each other. However, the swing angle of the button 4 and the cover 5 is also determined by the latch mechanism. Is not necessarily provided.

  25 and 26 show the detailed structure of the cover 5. The cover 5 is a resin member similar to the button portion 4 and forms the outer surface of the sliding body S, and swings integrally with the button portion 4 when the height of the shoulder adjuster device 10 is adjusted.

  The cover 5 of the shoulder adjuster device 10 is integrally joined to the button portion 4, and the button portion 4 is swingably attached to the hinge portion 37 of the garnish 3 by the joint portion 47. 37 from one end (upper end portion 51) of the cover 5 engaged and joined to the other end to the other end (lower end portion 52), which is a mounting nut covering portion of the through anchor A, is formed by a single member formed integrally. To do.

  Further, the cover 5 is configured to have a smooth substantially streamlined curved surface structure extending from the upper end 51 to the lower end 52, and therefore there are no joints or protrusions on the outer surface of the sliding body S. The integrally formed cover 5 does not prevent the side airbag from inflating when the side airbag is operated, and does not interfere with the airbag fabric and any protrusions or seams. Is very effective in ensuring the safety of passengers.

  A pair of left and right fixing pieces 55 that engage with a pair of left and right cover fixing portions 45 that are integrally formed on the inner wall side of the button portion 4 on the back surface of the cover 5 and integrally fix the cover 5 and the button portion 4 together. Is provided. The fixing pieces 55 are respectively inserted into the inner surface side of the cover fixing portion 45, and two button fixing claws 56 provided on each of the left and right fixing pieces 55 are provided on the outer surface of the cover fixing portion 45. The cover 5 and the button part 4 are integrally fixed by engaging with the cover fixing claw 46, and the cover 5 and the button part 4 function as an integral component while maintaining the elasticity of the grip part 42 of the button part 4. Let

  As shown in FIG. 1, the button spring 6 is manufactured by bending a metal wire into a substantially U-shape, and engages with a button spring mounting groove 48 provided in the cover fixing portion 45 to thereby form a button spring. 6 button spring leg portions 61 are respectively inserted into the gaps between the grip portion 42 of the button portion 4 and the cover fixing portion 45, and the grip portion 42 is urged outward from the inside to grip the button portion 4. And the certainty of the height adjustment operation of the shoulder adjuster device 10 is improved.

  FIG. 27 shows the detailed structure of the pin.

  The pin 7 protrudes into the latch hole 16 of the adjustment base 1 when the height of the shoulder adjuster device 10 is fixed, and a projecting portion 72 that fixes the sliding body S, and a flange-like contact provided integrally in the front side of the projecting portion 72. And a cylindrical body shaft portion 75 having the same outer diameter and coaxial with the projecting portion 72. In the further front direction of the main body shaft portion 75, a cylindrical pin neck portion 76 that is coaxial with the main body shaft portion 75 and has a smaller diameter than the main body shaft portion 75 is integrally formed. A disc-shaped pin head 77 having substantially the same diameter as the main body shaft portion 75 is integrally provided.

  The spring 8 is interposed between the flange-like contact portion 73 of the pin 7 and the spring mounting seat 35 of the garnish 3, and the flange-like contact portion 73 of the pin 7 is pinned to the pin of the slide base 2 by the elastic force of the spring 8. The sliding body S is fixed by being pressed against the contact portion 25.

  The pin 7 may be manufactured by integral molding, but may be manufactured by a manufacturing process in which the pin head 77 and the pin neck portion 76 are separately molded members and are caulked and fixed to the main body shaft portion 75 in consideration of productivity. .

  Next, the assembly procedure of the sliding body S will be described in detail with reference to FIG.

  First, the flange-like contact portion 73 of the pin 7 is placed in contact with the pin contact portion 25 provided on the outer edge of the hole portion 23 of the slide base 2, and the body shaft portion 75 of the pin 7 is inserted into the spring 8. To do. Next, while positioning the front end of the spring 8 so as to contact the spring mounting seat 35 of the garnish 3, the mounting piece 28 of the slide base 2 is fitted to the slide base fitting portion 32 of the garnish 3, and the slide base engagement is performed. The lower end of the slide base 2 is engaged with the hook of the joint portion 33 so that the slide base 2 and the garnish 3 are integrally formed. At this time, the pin head 77 of the pin 7 projects forward from the through hole 36 of the garnish 3.

  Next, the joint portion 47 of the button portion 4 is fitted to the hinge portion 37 of the garnish 3 and attached so as to be swingable. At this time, the pin action part 41 of the button part 4 is meshed so as to sandwich the pin neck part 76, and the pin head 77 is integrated in a form to be locked to the action surface 41 a of the pin action part 41 of the button part 4. . The side surface of the button portion 4 is urged outward by making the resin material a leaf spring structure. When the garnish 3 is attached to the button portion 4, the engagement claw 43 and the garnish 3 The button locking portion 34 is engaged, and the button portion 4 and the garnish 3 are stably integrated.

  Further, the button spring 6 is engaged with the button spring mounting groove portion 48 of the button portion 4, and the button spring leg portion 61 is fixed so as to be inserted into the gap between the cover fixing portion 45 and the grip portion 42.

  Next, the cover 5 is attached to the button part 4 so as to be swingable integrally. A pair of fixing pieces 55 provided on the back surface side of the cover 5 are inserted into the inner side surface of the cover fixing portion 45 of the button portion 4, and button fixing claws 56 provided on the fixing piece 55 are provided on the cover fixing portion 45. The cover 5 and the button portion 4 are integrally fixed by meshing with the cover fixing claw 46.

  The shoulder adjuster device 10 is assembled by inserting the slide base 2 of the slide body S assembled by the above process into the adjustment base 1.

  Next, functions of the shoulder adjuster device 10 will be described. 28 and 29 are longitudinal sectional views of the shoulder adjuster device 10 when the height is fixed and when the height is adjusted, and the function and positional relationship of each member will be described in detail. On the other hand, FIGS. 30 and 31 are cross-sectional views in the width direction in FIGS. 28 and 29, respectively, showing in detail the positional relationship of each component when the height of the shoulder adjuster device 10 is fixed and when the height is adjusted. It is.

  In the shoulder adjuster device 10 of the embodiment, the installation location of the pin 7 and the occlusal portion of the button portion 4 and the garnish 3 are not on the same cross section, but in FIGS. 30 and 31, the button portion 4 and the garnish 3 In order to explain the occlusion, the same drawing is used.

  When the height of the shoulder adjuster device 10 is fixed, the pin 7 is biased toward the vehicle body by the elastic force of the spring 8, and the flange contact portion 73 is provided on the outer edge of the hole 23 of the slide base 2. 25. In this state, the protrusion 72 of the pin 7 protrudes from the hole 23 of the slide base 3 and is inserted into the latch hole 16 of the adjustment base 1.

  In the shoulder adjuster 10, the button portion 4 and the pin 7 have a structure in which the pin operating portion 41 of the button portion 4 and the pin head 77 of the pin 7 are always in contact with each other. When the height is fixed as shown in FIGS. The action surface 41 a of the portion 41 is in surface contact with the pin head 77. At this time, the engaging claw 43 of the button part 4 and the button locking part 34 of the garnish 3 are engaged and fixed (FIG. 30).

  On the other hand, when the height of the shoulder adjuster device 10 is adjusted, the operator holds the button portion 4 and pulls it out toward the front, so that the button portion 4 and the cover 5 are integrated with each other so that the hinge portion 37 is moved. Swings as a fulcrum. At this time, the action surface 41a of the pin action part 41 acts on the pin head 77 as shown in FIG. 29, and the pin 7 is pulled out in the direction of the lever against the elastic force of the spring 8, and the protrusion of the pin 7 The part 72 is separated from the latch hole 16. That is, the pin 7 is released from the latch, and the sliding body S can slide up and down. At this time, the pin head 77 and the action surface 41a of the pin action part 41 are in contact by point contact. At the time of this height adjustment, the engaging claw 43 of the button portion 4 and the garnish button locking portion 34 are separated from each other by gripping the side surface of the button portion 4 (FIG. 31).

  Next, after adjusting the height of the shoulder adjuster device 10 to a desired height, when the button portion 4 is opened, the pin 7 is biased to the back side by the elastic force of the spring 8, and the button portion 4 and the cover 5 are hinged. The shoulder adjuster 10 is fixed in height by swinging in the direction of the vehicle body frame with the portion 37 as a fulcrum, and the protruding portion 72 of the pin 7 protruding into the latch hole 16 of the adjustment base 1.

  In the shoulder adjuster device 10 having such a structure, the latch mechanism is composed of the button 4, the pin 7 and the spring 8, and the number of components is very small as compared with the conventional shoulder adjuster device. Cost is low.

  In addition, since the cover 5 constituting the outer surface of the sliding body S on the vehicle interior space side is composed of a single member that is integrally formed, there are no joints or protrusions from the upper end 51 to the lower end 52, and the side airbag is normal. Does not interfere with startup. Therefore, it is possible to provide a shoulder adjuster with high safety.

The perspective view which shows the structure of the shoulder adjuster apparatus which concerns on this invention. The disassembled perspective view of the shoulder adjuster apparatus which concerns on this invention. The front view of an adjustment base. Fig. 3 is a longitudinal sectional view of an adjustment base. The width direction sectional view of an adjustment base. The front view of a slide base. The longitudinal direction sectional view of a slide base. The width direction sectional view of a slide base. Front view of garnish. Back view of garnish. Side view of garnish. The perspective view seen from the front side of garnish. The perspective view seen from the back side of a garnish. Sectional drawing which follows the XIV-XIV arrow of FIG. Sectional drawing which follows the XV-XV arrow of FIG. Sectional drawing which follows the XVI-XVI arrow of FIG. The front view of a button part. The back view of a button part. The side view of a button part. The perspective view seen from the front side of the button part. The perspective view seen from the back side of the button part. The figure which looked at the button part from the upper end side. The figure which looked at the button part from the lower end surface side. The fragmentary sectional view which follows the XXIV-XXIV arrow of FIG. The perspective view which looked at the cover from the front side. The perspective view which looked at the cover from the back side. Front view of the pin. The longitudinal direction sectional view at the time of height fixation of the shoulder adjuster device of an example. The longitudinal direction sectional view at the time of height adjustment of the shoulder adjuster device of the embodiment. FIG. 29 is a cross-sectional view in the width direction when the height is fixed along the arrow XXX-XXX in FIG. 28. FIG. 30 is a cross-sectional view in the width direction during height adjustment along the arrow XXXI-XXXI in FIG. 29.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Adjust base 2 Slide base 3 Garnish 4 Button part 5 Cover 6 Button spring 7 Pin 8 Spring 10 Shoulder adjuster device 11 Side wall part 12 Engagement part 13 Flat surface 14 Mounting hole 15 Stopper part 16 Latch hole 21 Engagement part 22 Flat surface 23 hole 24 hole 25 pin contact part 26 anchor nut 27 flange part 28 mounting piece 32 fitting part 33 slide base locking part 34 button locking part 35 spring mounting seat 36 through hole 37 hinge part 38 hole part 39 hook 41 pin action Part 42 gripping part 43 engaging claw 45 cover fixing part 46 cover fixing claw 47 joint part 48 button spring mounting groove part 49 notch part 51 upper end part 52 lower end part 55 fixing piece 56 button fixing claw 61 button spring leg part 72 protruding part 73 flange -Shaped contact part 75 Main body shaft part 76 Pin Part 77 Pinhead

Claims (6)

In the shoulder adjuster device that adjusts the webbing length by changing the fixed position of the through anchor according to the body shape of the passenger,
An adjustment base fixed to the body frame,
A sliding body on which the adjustment base is slidably attached;
With a through anchor that is integrally joined to this sliding body and holds the intermediate part of the webbing,
The slide body is slidably engaged with the adjustment base, a garnish that is fixed integrally with the slide base and constitutes a body of the slide body, and the slide body is adjusted in height and fixed. A latch mechanism, and a button part for operating the fixed position adjustment of the sliding body,
The button portion is swingably attached to the garnish, and when the height of the sliding portion is adjusted, the button portion is gripped to swing the button portion to release the latch mechanism, and the sliding portion is slid. A shoulder adjuster device, characterized in that the apparatus is configured to be configured. A cover that constitutes the outer surface of the sliding body on the interior space side is provided integrally with the button portion, and the cover is attached through the anchor from one end that covers the joint portion of the button portion that is swingably jointed with the hinge portion of the garnish. 2. The shoulder adjuster device according to claim 1, wherein a portion up to the other end, which is a covering portion of the bolt portion, is constituted by an integrally formed single member. The shoulder adjuster device according to claim 2, wherein an outer surface shape of a cover constituting the outer surface of the sliding body on the vehicle interior side is a streamlined curved surface shape. The shoulder adjuster device according to claim 1, wherein the garnish includes a hinge portion, and the button portion includes a joint portion that swingably joins the hinge portion. The shoulder adjuster device according to claim 1, wherein the latch mechanism includes a pin and a spring. The button portion includes a pin action portion that engages with the pin and acts, the pin action portion acts on the pin by swinging the button portion, and the lever is moved from a latch hole of the adjustment base by a lever mechanism. 6. The shoulder adjuster device according to claim 5, wherein the shoulder adjuster device is pulled out to release the latch.

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