JP5575018B2 - Buckle device - Google Patents

Description

  The present invention relates to a buckle device in which a webbing is attached to an occupant of a vehicle by locking a tongue provided on the webbing to the buckle.

  In the buckle device described in Patent Document 1 below, the insertion hole provided in the inner buckle is opened from the upper end of the inner buckle, and the tongue plate of the seat belt is inserted into the insertion hole of the inner buckle. A seat belt is attached to the passenger.

  However, in this buckle device, the inner buckle is rotatably supported at the caulking site near the upper end.

  For this reason, when the tongue plate is inserted into the insertion hole of the inner buckle, the insertion direction of the tongue plate into the insertion hole does not oppose the opening direction of the insertion hole (becomes non-parallel) and When the buckle is pressed on the peripheral surface of the insertion hole, the inner buckle is rotated to the side where the opening direction of the insertion hole does not oppose (make parallel to) the insertion direction of the tongue plate into the insertion hole.

  This makes it difficult to insert the tongue plate into the insertion hole, which may make it difficult for the occupant to install the seat belt.

JP 2003-205822 A

  In view of the above fact, an object of the present invention is to obtain a buckle device that can easily insert a tongue into an insertion port of a buckle.

The buckle device according to claim 1 , wherein an insertion port is provided, and a tongue provided on the webbing is inserted into the insertion port and locked so that the webbing is mounted on a vehicle occupant, and A buckle is supported rotatably about the tongue insertion side from the insertion port, and when the tongue is inserted into the insertion port, the buckle is pressed against the tongue so that the buckle opens in the opening direction of the insertion port. And a support mechanism that is rotated to the side that opposes the direction in which the tongue is inserted into the insertion port.

The buckle device according to claim 2 is the buckle device according to claim 1 , wherein when the buckle is pressed against the tongue, the opening direction of the insertion port is opposed to the insertion direction of the tongue into the insertion port. Guiding means for guiding the rotation of the buckle to the side to be moved is provided.

The buckle device according to claim 3 is the buckle device according to claim 1 or 2 , wherein when the buckle is pressed against the tongue, the opening direction of the insertion port is changed to the insertion port of the tongue. A restricting means for restricting the rotation of the buckle to the side not facing the insertion direction is provided.

In the buckle device according to claim 1 , the support mechanism is supported by the buckle, and the tongue provided on the webbing is inserted into the insertion port of the buckle and locked to the buckle, so that the webbing is provided to the vehicle occupant. Installed.

  Here, the support mechanism supports the buckle so as to be rotatable around the tongue insertion side from the insertion port, and when the tongue is inserted into the insertion port, the buckle is pressed against the tongue, and the buckle is inserted into the insertion port. The opening direction is turned to the side opposite to the insertion direction of the tongue into the insertion opening.

  Therefore, when the tongue is inserted into the insertion port, the insertion direction of the tongue into the insertion port does not face the opening direction of the insertion port (non-parallel), and the buckle is pressed against the tongue, The buckle is rotated to the side (the side to be parallel) that opposes the opening direction of the insertion port with the insertion direction of the tongue. As a result, the tongue can be easily inserted into the insertion slot.

In the buckle device according to claim 2 , when the buckle is pressed against the tongue, the guide means guides the rotation of the buckle to the side where the opening direction of the insertion port faces the insertion direction of the tongue into the insertion port. .

  For this reason, when the buckle is pressed against the tongue without the direction of insertion of the tongue into the insertion port facing the opening direction of the insertion port, the buckle defines the direction of opening of the insertion port as the direction of insertion of the tongue into the insertion port. It can be stably rotated to the opposite side.

In the buckle device according to claim 3 , when the buckle is pressed against the tongue, the buckle is rotated to the side in which the opening direction of the insertion port is not opposed (not parallel) to the insertion direction of the tongue. Regulating means regulate.

  For this reason, when the buckle is pressed against the tongue without the direction of insertion of the tongue into the insertion port facing the opening direction of the insertion port, the buckle defines the direction of opening of the insertion port as the direction of insertion of the tongue into the insertion port. It can be stably rotated to the opposite side.

(A) And (B) is a figure which shows the buckle apparatus which concerns on the 1st Embodiment of this invention, (A) is the front view seen from the front side, (B) is seen from back FIG. (A) And (B) is a figure which shows the principal part of the vehicle to which the buckle device which concerns on the 1st Embodiment of this invention was applied, (A) is the side view seen from the vehicle left side Yes, (B) is a rear view as seen from the rear of the vehicle. (A) And (B) is the front view seen from the front side which shows the buckle apparatus which concerns on the 1st Embodiment of this invention, (A) is a tongue on the insertion side of a buckle on the lower side and the front side. It is a figure which shows at the time of being inserted in the direction which goes, (B) is a figure which shows when a tongue is inserted in the direction which goes to the insertion direction of a buckle in the downward direction and a back side. (A) And (B) is a figure which shows the buckle apparatus which concerns on the 2nd Embodiment of this invention, (A) is the side view seen from back, (B) is seen from the front side FIG. It is the perspective view seen from the front diagonal front which shows the buckle apparatus which concerns on the 3rd Embodiment of this invention. It is the perspective view seen from the back diagonally back which shows the buckle apparatus which concerns on the 3rd Embodiment of this invention. (A) And (B) is the figure seen from the upper part which shows the principal part of the buckle apparatus which concerns on the 3rd Embodiment of this invention, (A) is the sectional view on the AA line of FIG. FIG. 7B is a cross-sectional view taken along line B-B in FIG. 6. (A)-(C) is the front view seen from the front side which shows the buckle apparatus which concerns on the 3rd Embodiment of this invention, (A) is a figure which shows a normal state, (B) is FIG. 8 is a view showing a state where the tongue is inserted into the insertion port of the buckle in a direction toward the lower side and the front side, and (C) is a view when the tongue is inserted into the insertion port of the buckle in a direction toward the lower side and the front side. FIG. It is the disassembled perspective view seen from the front diagonal front which shows the buckle apparatus which concerns on the 4th Embodiment of this invention. It is the front view seen from the front side which shows the buckle device concerning a 4th embodiment of the present invention. (A) And (B) is the front view seen from the front side which shows the buckle device concerning a 4th embodiment of the present invention, and (A) is a tongue in the insertion opening of a buckle in the lower side and the front side. It is a figure which shows at the time of being inserted in the direction which goes, (B) is a figure which shows when a tongue is inserted in the direction which goes to the insertion direction of a buckle in the downward direction and a back side. It is the front view seen from the front side which shows the buckle device concerning a 5th embodiment of the present invention. (A) And (B) is a figure which shows the principal part of the buckle apparatus which concerns on the 5th Embodiment of this invention, (A) is the sectional view on the AA line of FIG. ) Is a sectional view taken along line BB in FIG. (A) And (B) is the front view seen from the front side which shows the buckle apparatus which concerns on the 5th Embodiment of this invention, (A) is a tongue on the insertion side of a buckle on the lower side and the front side. It is a figure which shows at the time of being inserted in the direction which goes, (B) is a figure which shows when a tongue is inserted in the direction which goes to the insertion direction of a buckle in the downward direction and a back side. It is the front view seen from the front side which shows the buckle device concerning a 6th embodiment of the present invention. (A)-(C) are figures which show the cable bear of the buckle apparatus which concerns on the 6th Embodiment of this invention, (A) is a front view, (B) is a side view. , (C) is a perspective view. (A) And (B) is the front view seen from the front side which shows the buckle device concerning a 6th embodiment of the present invention, and (A) is lower and the front to the insertion port of a buckle. It is a figure which shows at the time of being inserted in the direction which goes, (B) is a figure which shows when a tongue is inserted in the direction which goes to the insertion direction of a buckle in the downward direction and a back side. It is the front view seen from the front side which shows the buckle device concerning a 7th embodiment of the present invention.

  [First Embodiment]

  FIG. 1A shows a front view of the buckle device 10 according to the first embodiment of the present invention viewed from the front side, and FIG. 1B shows the buckle device 10 from the rear. Shown in side view. Further, FIG. 2 (A) shows a side view of the main part of the vehicle to which the buckle device 10 is applied as seen from the left side of the vehicle, and FIG. 2 (B) shows the main part of the vehicle. Is shown in a rear view as seen from the rear of the vehicle. In the drawing, the front side of the buckle device 10 is indicated by an arrow IN, the front of the buckle device 10 is indicated by an arrow FR, and the upper side of the buckle device 10 is indicated by an arrow UP.

  As shown in FIGS. 2A and 2B, the buckle device 10 according to the present embodiment is mounted on a seat 38 in the vehicle interior of the vehicle, and the seat 38 includes a lower seat cushion 38A. Upper and rear seat backs 38B are provided so that a passenger can be seated. The buckle device 10 is installed on the rear side of the passenger seating area of the seat 38 in the vehicle width direction and on the lower side. The buckle device 10 is arranged in a state where the front and back directions are arranged in parallel with the vehicle width direction of the vehicle. The direction is directed to the vehicle front-rear direction and the upper side is directed to the upper side of the vehicle. 2A and 2B, the buckle device 10 is installed on the inner side in the vehicle width direction (the vehicle left side) of the rear portion of the seat cushion 38A, and the front, front side, and upper side of the buckle device 10 are the front of the vehicle, respectively. It is directed inward in the vehicle width direction (left side of the vehicle) and upward of the vehicle.

  As shown in FIGS. 1A and 1B, the buckle device 10 includes a buckle 12. A resin cover 14 is provided on the outer periphery of the buckle 12, and the cover 14 is formed in a substantially rectangular parallelepiped box shape and an upper surface is opened. A metal body 16 (see FIG. 13B) is fixed in the cover 14, and the body 16 has a U-shaped cross section.

  A button 18 as an operation member is provided on the upper portion of the buckle 12. The button 18 is inserted into the cover 14, and the upper surface constitutes the upper surface of the buckle 12. The button 18 can be pressed downward, and the button 18 can be moved downward (slid) into the cover 14 by being pressed downward.

  A long rectangular insertion hole 20 is formed in the button 18, and the insertion hole 20 is elongated in the front-rear direction and is elongated in the front-back direction. The insertion hole 20 is opened upward from the upper surface of the button 18 (the upper surface of the buckle 12), and the upper end thereof is an insertion port 20A. The dimensions of the insertion port 20A in the front-rear direction and the front-back direction are gradually increased upward. Has been enlarged to.

  The buckle 12 is rotatably supported by the support mechanism 22.

  The support mechanism 22 is provided with an inverted Y-shaped flat plate rotation plate 24 as a rotation member. The upper part of the rotating plate 24 is inserted into the buckle 12 (inside the cover 14) and is fixed to the body 16, whereby the rotating plate 24 is fixed to the buckle 12 and at the lower side from the buckle 12. It is extended to.

  At the lower end of the rotating plate 24, a cylindrical roller 26 as a rotating means is supported by a roller rivet 28 in the front and rear portions, and the roller 26 can rotate around the roller rivet 28. Has been. A mounting groove 26 </ b> A having a rectangular cross section is formed on the outer periphery of the roller 26 in the middle in the axial direction, and the mounting groove 26 </ b> A is disposed over the entire periphery of the roller 26.

  A support plate 30 having a substantially T-shaped plan view as a support member is provided below the rotating plate 24, and the support plate 30 is fixed to the vehicle body side at the lower end.

  A support hole 32 as a guiding means is formed through the upper portion of the support plate 30, and the support hole 32 is elongated in the front-rear direction side. The support plate 30 is fitted with the roller 26 of the rotating plate 24 at the position of the support hole 32, and the support plate 30 is fitted around the support hole 32 in the mounting groove 26 </ b> A of the roller 26. As a result, the buckle 12 is supported by the support plate 30 via the rotating plate 24.

  The support hole 32 is curved in an arc shape, the support hole 32 is convex downward, and the center of curvature is above the upper surface of the buckle 12. Thereby, the roller 26 of the rotating plate 24 is moved along the longitudinal direction while rotating the roller 26 so that the buckle 12 is guided by the support hole 32 and above the upper surface (insertion opening 20A). As a center, it can be rotated integrally with the rotating plate 24.

  As shown in FIGS. 3A and 3B, the buckle device 10 constitutes a vehicle seat belt device (belt device), and the long belt-like webbing 34 (belt) of the seat belt device includes A substantially T-shaped tongue 36 in plan view is provided.

  The front end portion 36A of the tongue 36 is formed in a substantially rectangular plate shape, and the front end portion 36A of the tongue 36 is inserted into the insertion hole 20 of the buckle 12 (button 18) from the insertion port 20A (upper side). Is locked to the buckle 12. As a result, the webbing 34 is attached to the occupant seated on the seat 38, and the webbing 34 can restrain the occupant. On the other hand, when the button 18 is pressed downward, the locking of the tongue 36 to the buckle 12 is released, and the mounting of the webbing 34 to the occupant is released.

  Next, the operation of the present embodiment will be described.

  In the buckle device 10 having the above configuration, the tip 36A of the tongue 36 is inserted into the insertion hole 20 of the buckle 12 from the insertion port 20A, whereby the tongue 36 is locked to the buckle 12 and the webbing 34 is attached to the occupant. Is done.

  Here, the support mechanism 22 rotatably supports the buckle 12 via the rotation plate 24 in the support hole 32 of the support plate 30 on the lower side of the buckle 12 (the side opposite to the insertion port 20A). When the roller 26 of the rotating plate 24 is rotated and moved along the longitudinal direction of the support hole 32, the buckle 12 rotates around the upper surface (insertion opening 20A) (on the tongue 36 insertion side). The moving plate 24 and the moving plate 24 can be rotated together.

  For this reason, when the tongue 36 is inserted into the insertion port 20A of the buckle 12, the insertion direction of the tongue 36 into the insertion port 20A does not oppose the opening direction (upward) of the insertion port 20A (become non-parallel). ) Even if the buckle 12 is pressed against the tongue 36 (tip 36A) on the peripheral surface of the insertion port 20A, the buckle 12 faces the opening direction of the insertion port 20A opposite to the insertion direction of the tongue 36 into the insertion port 20A ( It is turned to the parallel side.

  Specifically, as shown in FIG. 3A, when the tongue 36 is inserted into the insertion opening 20A of the buckle 12 in the downward and forward direction, the buckle 12 is inserted into the tongue 36 around the insertion opening 20A. The roller 26 of the rotating plate 24 is moved to the front side of the support hole 32 while being rotated by being pressed downward and forward in the surface. For this reason, the buckle 12 is rotated to the front side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the rear side.

  On the other hand, as shown in FIG. 3B, when the tongue 36 is inserted into the insertion opening 20A of the buckle 12 in the downward and rearward direction, the buckle 12 is inserted into the tongue 36 on the circumferential surface of the insertion opening 20A. By being pressed in a direction toward the lower side and the rear side, the roller 26 of the rotating plate 24 is moved to the rear side of the support hole 32 while being rotated. For this reason, the buckle 12 is rotated to the rear side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the front side.

  Thus, even when the insertion direction of the tongue 36 into the insertion port 20A does not face the opening direction of the insertion port 20A, the buckle 12 makes the opening direction of the insertion port 20A face the insertion direction of the tongue 36 into the insertion port 20A. Therefore, the tongue 36 can be easily inserted into the insertion port 20A, and the occupant can easily wear the webbing 34.

  Furthermore, when the buckle 12 is pressed against the tongue 36 on the circumferential surface of the insertion port 20A, the support hole 32 of the support plate 30 makes the opening direction of the insertion port 20A face the insertion direction of the tongue 36 into the insertion port 20A. Guide the rotation of the buckle 12 to the side. For this reason, the buckle 12 can be stably rotated to the side where the opening direction of the insertion port 20A is opposed to the insertion direction of the tongue 36 into the insertion port 20A.

  When the locking of the tongue 36 to the buckle 12 is released, the roller 26 of the rotating plate 24 is rotated along the longitudinal direction while the roller 26 of the rotating plate 24 is rotated by the weight of the buckle 12 and the rotating plate 24. By being moved, the buckle 12 is rotated to the initial position together with the rotating plate 24. For this reason, the opening direction of the insertion port 20A of the buckle 12 can be returned upward.

  [Second Embodiment]

  FIG. 4A shows a side view of the buckle device 40 according to the second embodiment of the present invention as seen from the rear, and FIG. 4B shows the buckle device 40 from the front side. It is shown in the front view.

  The buckle device 40 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.

  As shown in FIGS. 4A and 4B, in the buckle device 40 according to the present embodiment, the rotation plate 24 of the support mechanism 22 is formed in a long plate shape, and the rotation plate 24 is formed of a buckle. 12 and is connected to a body 16 in the buckle 12 (in the cover 14). Thereby, the rotating plate 24 is fixed to the buckle 12 and extends upward and downward of the buckle 12.

  A long plate-like extension plate 30 </ b> A is integrally formed on the support plate 30 of the support mechanism 22, and the extension plate 30 </ b> A extends upward from the support plate 30. At the upper end of the extension plate 30A, the upper end of the rotation plate 24 is supported by a shaft rivet 42 that constitutes a rotation means, and the buckle 12 rotates integrally with the rotation plate 24 around the shaft rivet 42. Has been made movable.

  The lower end of the rotating plate 24 is supported (connected) around the support hole 32 of the support plate 30 by a rotating rivet 44 that forms a rotating means, and the rotating rivet 44 extends along the longitudinal direction of the supporting hole 32. By being moved, the buckle 12 can be rotated integrally with the rotating plate 24 while being guided by the support hole 32 while being supported by the support plate 30 at the lower end of the rotating plate 24.

  Here, the support mechanism 22 rotates the buckle 12 at the upper end of the extension plate 30A on the upper side of the buckle 12 and the support hole 32 of the support plate 30 on the lower side of the buckle 12 (the side opposite to the insertion port 20A). 24, and the rotation rivet 44 of the rotation plate 24 is moved along the longitudinal direction of the support hole 32, so that the buckle 12 is above the upper surface (insertion opening 20A). The shaft rivet 42 (on the tongue 36 insertion side) is pivotable integrally with the pivot plate 24.

  For this reason, when the tongue 36 is inserted into the insertion port 20A of the buckle 12, the insertion direction of the tongue 36 into the insertion port 20A does not oppose the opening direction (upward) of the insertion port 20A (become non-parallel). ) Even if the buckle 12 is pressed against the tongue 36 (tip 36A) on the peripheral surface of the insertion port 20A, the buckle 12 faces the opening direction of the insertion port 20A opposite to the insertion direction of the tongue 36 into the insertion port 20A ( It is turned to the parallel side.

  Thereby, also in this embodiment, the same operation and effect as in the first embodiment can be obtained.

  [Third Embodiment]

  FIG. 5 shows a perspective view of the buckle device 50 according to the third embodiment of the present invention as seen from the front diagonally front, and FIG. 6 shows the buckle device 50 as seen from the diagonally rear side. It is shown in a perspective view.

  The buckle device 50 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.

  As shown in FIGS. 5 and 6, in the buckle device 50 according to the present embodiment, the rotating plate 24 of the support mechanism 22 has an L-shaped plate-shaped urging plate that constitutes the return means at the intermediate portion in the vertical direction. The upper end of 52 is rotatably supported by a return rivet 54.

  As shown in FIG. 7A, an annular plate-shaped wave washer 56 as a tilting return means constituting the return means is arranged between the rotating plate 24 and the urging plate 52, and the wave washer. A return rivet 54 is passed through 56. The wave washer 56 is corrugated and elastic, and is sandwiched between the rotating plate 24 and the urging plate 52. The urging plate 52 resists the urging force of the wave washer 56. The rotating plate 24 can be tilted, and the urging force of the wave washer 56 limits the rotational torque with respect to the rotating plate 24.

  As shown in FIGS. 5 and 6, the support plate 30 of the support mechanism 22 has a substantially rectangular arrangement hole 58 penetratingly formed in an intermediate portion in the vertical direction. The lower end of the is inserted so that it cannot be detached and is movable in the vertical direction. In the arrangement hole 58, a compression coil spring 60 as a rotation return means constituting a return means is arranged. The compression coil spring 60 is located between the lower end of the support plate 30 and the lower end of the biasing plate 52. Has been passed to. Thereby, the urging plate 52 is urged upward by the urging force of the compression coil spring 60, and the buckle 12 is urged upward together with the rotating plate 24.

  The support holes 32 of the support plate 30 are formed through the front part and the rear part of the upper part of the support plate 30, respectively. The support holes 32 are elongated in the front-rear direction. The front portion of the support hole 32 is inclined in the downward direction as it goes to the front side, and the rear portion of the support hole 32 is inclined in the downward direction as it goes to the rear side. An intermediate portion in the longitudinal direction of 32 is the upper end of the support hole 32.

  As shown in FIG. 7B, the front part and the rear part of the lower part of the rotating plate 24 are respectively rotated around the support hole 32 on the front side of the support plate 30 and around the support hole 32 on the rear side of the support plate 30. It is supported (connected) by a support rivet 62 as a moving means, and the rotating plate 24 is urged upward by the urging force of the compression coil spring 60, so that the support rivet 62 is at the upper end (longitudinal direction) of the support hole 32. (Middle part).

  Here, the support mechanism 22 rotatably supports the buckle 12 via the rotation plate 24 in the support hole 32 of the support plate 30 on the lower side of the buckle 12 (the side opposite to the insertion port 20A). When the support rivet 62 of the rotating plate 24 is moved along the longitudinal direction of the support hole 32, the buckle 12 is guided by the support hole 32 and is above the upper surface (insertion opening 20 </ b> A) (on the tongue 36 insertion side). ) Around the rotation plate 24 so as to be rotatable together.

  For this reason, when the tongue 36 is inserted into the insertion port 20A of the buckle 12, the insertion direction of the tongue 36 into the insertion port 20A does not oppose the opening direction (upward) of the insertion port 20A (become non-parallel). ) Even if the buckle 12 is pressed against the tongue 36 (tip 36A) on the peripheral surface of the insertion port 20A, the buckle 12 faces the opening direction of the insertion port 20A opposite to the insertion direction of the tongue 36 into the insertion port 20A ( It is turned to the parallel side.

  Specifically, as shown in FIGS. 8A to 8C, when the tongue 36 is inserted into the insertion port 20 </ b> A of the buckle 12 in the downward and forward direction, the buckle 12 is attached to the tongue 36. The support rivet 62 of the rotating plate 24 is moved to the front side of the support hole 32 by being pressed in the direction toward the lower side and the front side on the peripheral surface of the insertion port 20A. For this reason, the buckle 12 is rotated to the front side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the rear side.

  On the other hand, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the direction toward the lower side and the rear side, the buckle 12 is inserted into the tongue 36 in the direction toward the lower side and the rear side on the peripheral surface of the insertion port 20A. By being pressed, the support rivet 62 of the rotating plate 24 is moved to the rear side of the support hole 32. For this reason, the buckle 12 is rotated to the rear side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the front side.

  Further, when the buckle 12 is pressed against the tongue 36, the support rivet 62 of the rotating plate 24 is supported by the support hole 32 against the urging force of the compression coil spring 60 and, if necessary, the urging force of the wave washer 56. Is moved along the longitudinal direction, and the buckle 12 is rotated integrally with the rotating plate 24. For this reason, when the locking of the tongue 36 to the buckle 12 is released, the supporting rivet 62 of the rotating plate 24 is supported by the urging force of the compression coil spring 60 and the urging force of the wave washer 56 as necessary. By moving the hole 32 along the longitudinal direction, the buckle 12 is rotated together with the rotating plate 24 to the initial position.

  Thereby, also in this embodiment, the same operation and effect as in the first embodiment can be obtained.

  [Fourth Embodiment]

  FIG. 9 shows an exploded perspective view of the buckle device 70 according to the fourth embodiment of the present invention as seen from the front diagonally front, and FIG. 10 shows the front of the buckle device 70 seen from the front side. It is shown in the figure.

  The buckle device 70 according to the present embodiment has substantially the same configuration as the first embodiment, but differs in the following points.

  As shown in FIGS. 9 and 10, in the buckle device 70 according to the present embodiment, the rotating plate 24 of the support mechanism 22 is formed in a rectangular plate shape, and the upper portion of the rotating plate 24 is inside the buckle 12 (cover). 14). Thereby, the rotating plate 24 is fixed to the buckle 12 and extended to the lower side of the buckle 12.

  The support plate 30 of the support mechanism 22 has a long plate shape with an L-shaped cross section, and the support plate 30 is fixed to the vehicle body side in the lower portion.

  In the support mechanism 22, a pair of long plate-like support links 72 serving as guide means are provided between the rotation plate 24 and the support plate 30, and the upper end and the lower end of the support link 72 are respectively the rotation plate 24. The buckle 12 is supported by the support plate 30 via the rotation plate 24 and the pair of support links 72 by being supported by the support plate 30 so as to be rotatable by a link rivet 74 as a rotation means. The distance between the link rivets 74 at the lower ends of the pair of support links 72 is larger than the distance between the link rivets 74 at the upper ends of the pair of support links 72, and the pair of support links 72 are rotated around the lower ends. Thus, the buckle 12 can be rotated integrally with the rotary plate 24 around the upper surface (insertion opening 20A) while being guided by the pair of support links 72.

  A tension coil spring 76 as a return means is suspended between the rotating plate 24 and the support plate 30. As a result, the buckle 12 is urged downward by the tension coil spring 76 integrally with the rotation plate 24, whereby the rotation positions of the buckle 12 and the pair of support links 72 are defined. 20A is opened upward.

  Here, the support mechanism 22 supports the buckle 12 so as to be rotatable via the rotation plate 24 at a pair of support links 72 on the lower side of the buckle 12 (on the side opposite to the insertion port 20A). The support link 72 is rotated about the lower end, so that the buckle 12 can be rotated integrally with the rotation plate 24 about the upper side (insertion side of the tongue 36) from the upper surface (insertion opening 20A). ing.

  For this reason, when the tongue 36 is inserted into the insertion port 20A of the buckle 12, the insertion direction of the tongue 36 into the insertion port 20A does not oppose the opening direction (upward) of the insertion port 20A (become non-parallel). ) Even if the buckle 12 is pressed against the tongue 36 (tip 36A) on the peripheral surface of the insertion port 20A, the buckle 12 faces the opening direction of the insertion port 20A opposite to the insertion direction of the tongue 36 into the insertion port 20A ( It is turned to the parallel side.

  Specifically, as shown in FIG. 11A, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and forward direction, the buckle 12 is inserted into the tongue 36 around the insertion port 20A. The pair of support links 72 are rotated forward about the lower end by being pressed in a direction toward the lower side and the front side on the surface. For this reason, the buckle 12 is rotated to the front side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the rear side.

  On the other hand, as shown in FIG. 11B, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and rearward direction, the buckle 12 is inserted into the tongue 36 on the circumferential surface of the insertion port 20A. By pressing in the direction toward the lower side and the rear side, the pair of support links 72 are rotated rearward about the lower end. For this reason, the buckle 12 is rotated to the rear side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the front side.

  Further, when the buckle 12 is pressed against the tongue 36, the pair of support links 72 are rotated around the lower end against the urging force of the tension coil spring 76, so that the buckle 12 is connected to the rotating plate 24. It is rotated integrally. For this reason, when the locking of the tongue 36 to the buckle 12 is released, the pair of support links 72 are rotated around the lower end by the urging force of the tension coil spring 76, and the buckle 12 is rotated. 24 is rotated together with the initial position.

  Thereby, also in this embodiment, the same operation and effect as in the first embodiment can be obtained.

  [Fifth Embodiment]

  FIG. 12 is a front view of a buckle device 80 according to a fifth embodiment of the present invention viewed from the front side.

  The buckle device 80 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.

  As shown in FIG. 12, in the buckle device 80 according to the present embodiment, the support mechanism 22 is not provided with the rotating plate 24 and the support plate 30 in the first embodiment.

  The support mechanism 22 is provided with a pair of guides and wire anchors 82 as support members. The wire anchor 82 is provided with a long wire 84 (cable) as a return means, and the wire 84 has elasticity (flexibility). Metal anchors 86 and 88 are provided at the upper and lower ends of the wire 84, respectively. The anchors 86 and 88 are caulked and fixed to the wire 84.

  As shown in detail in FIG. 13A, the lower end of the wire anchor 82 (the lower end of the anchor 88) is supported by a plate-like protrusion 94 on the vehicle body side by fastening a bolt 90 and a nut 92 as rotating means. On the outer periphery of the head of the bolt 90, an annular plate-like locking plate 90A is integrally provided on the entire periphery. The head of the bolt 90 passes through the anchor 88 and sandwiches the protrusion 94 between the nut 92 and the anchor 88 is disposed between the locking plate 90A and the protrusion 94, and the wire anchor 82 is With the lower end as the center, the front side and the rear side can be rotated within a predetermined angle range (range of angle θ1 in FIG. 12).

  As shown in detail in FIG. 13B, the upper end of the wire anchor 82 (the upper end of the anchor 86) is inserted into the buckle 12 (inside the cover 14), and the wire rivet using the body 16 in the buckle 12 as a rotating means. 96. The anchor 86 is inserted between the front side portion and the back side portion of the body 16, and the wire rivet 96 is passed between the front side portion and the back side portion of the body 16 and passes through the anchor 86. The wire anchor 82 is rotatable around the upper end.

  As shown in FIG. 12, the wire anchor 82 is in a natural state extended linearly, the buckle 12 is supported on the vehicle body side by a pair of wire anchors 82, and the insertion port 20A is opened upward.

  A pair of columnar restricting claws 98 serving as restricting means are integrally provided on the lower surface of the buckle 12 (lower surface of the cover 14), and the restricting claws 98 extend downward from the buckle 12. The front regulation claw 98 is disposed on the rear side of the front wire anchor 82 (anchor 86), and the front regulation claw 98 allows the front wire anchor 82 to be rotated forward about the upper end. At the same time, the front-side wire anchor 82 is restricted from rotating rearward about the upper end. The rear regulating claw 98 is disposed on the front side of the rear wire anchor 82 (anchor 86), and the rear regulating claw 98 is rotated rearward about the upper end. In addition, the rear wire anchor 82 is restricted from being rotated forward about the upper end.

  The front wire anchor 82 is pivotable forward at a specific angle (in the range of angle θ2 in FIG. 12) with the upper end as the center, and the rear wire anchor 82 is at a specific angle (in FIG. 12 with respect to the upper end). The range of the angle θ2) can be rotated rearward.

  As shown in FIG. 14 (A), the front wire anchor 82 is rotated forward about the upper end and the lower end, so that the front wire anchor 82 (wire 84) curves convexly against the elastic force. At the same time, the rear wire anchor 82 is rotated to the front side around the lower end in the natural state (rotated to the rear side about the upper end with respect to the buckle 12). On the other hand, as shown in FIG. 14B, the rear wire anchor 82 is rotated rearward about the upper end and the lower end, so that the rear wire anchor 82 (wire 84) resists the elastic force and moves backward. The front wire anchor 82 is rotated to the rear side with the lower end as the center (rotated to the front side with respect to the buckle 12 with the upper end as the center).

  Here, the support mechanism 22 rotatably supports the buckle 12 at a pair of wire anchors 82 in the lower part of the buckle 12 (on the side opposite to the insertion port 20A), and the one wire anchor 82 is curved and the other is supported. By rotating the wire anchor 82 about the lower end, the buckle 12 can be rotated about the upper side (the insertion side of the tongue 36) from the upper surface (insertion opening 20A) while being guided by the pair of wire anchors 82. ing.

  For this reason, when the tongue 36 is inserted into the insertion port 20A of the buckle 12, the insertion direction of the tongue 36 into the insertion port 20A does not oppose the opening direction (upward) of the insertion port 20A (become non-parallel). ) Even if the buckle 12 is pressed against the tongue 36 (tip 36A) on the peripheral surface of the insertion port 20A, the buckle 12 faces the opening direction of the insertion port 20A opposite to the insertion direction of the tongue 36 into the insertion port 20A ( It is turned to the parallel side.

  Specifically, as shown in FIG. 14A, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and forward direction, the buckle 12 is inserted into the tongue 36 around the insertion port 20A. By pressing in the direction toward the lower side and the front side on the surface, the front side wire anchor 82 is rotated to the front side around the upper end and the lower end, and the front side wire anchor 82 (wire 84) is curved convexly toward the front side. At the same time, the rear wire anchor 82 is rotated forward about the lower end in the natural state. For this reason, the buckle 12 is rotated to the front side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the rear side.

  On the other hand, as shown in FIG. 14B, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and rearward direction, the buckle 12 is inserted into the tongue 36 on the circumferential surface of the insertion port 20A. By pressing in the direction toward the lower side and the rear side, the rear wire anchor 82 is rotated rearward about the upper end and the lower end, and the rear wire anchor 82 (wire 84) is convex rearward. And the front wire anchor 82 is rotated rearward about the lower end in the natural state. For this reason, the buckle 12 is rotated to the rear side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the front side.

  Further, when the buckle 12 is pressed against the tongue 36, one of the wire anchors 82 is bent against the elastic force of the wire 84, and the buckle 12 is rotated. For this reason, when the locking of the tongue 36 to the buckle 12 is released, the one wire anchor 82 is released from the bending state by the elastic force of the wire 84 and returned to the natural state where it is stretched linearly. Thus, the buckle 12 is rotated to the initial position.

  Thereby, also in this embodiment, operations and effects similar to those of the first embodiment can be achieved except for the operation and effects of the support holes 32 of the support plate 30.

  Further, as shown in FIG. 14A, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and forward direction, the front wire anchor 82 rotates rearward about the upper end. This is controlled by the front-side restricting claw 98 of the buckle 12 and the front-side wire anchor 82 (wire 84) is restricted from being bent convexly to the rear side, so that the buckle 12 has its lower end on the rear side. The opening direction of the insertion port 20A is turned to the direction toward the upper side and the front side by being rotated so that the opening direction of the insertion port 20A does not oppose the insertion direction of the tongue 36 to the insertion port 20A. Is regulated.

  On the other hand, as shown in FIG. 14B, when the tongue 36 is inserted into the insertion opening 20A of the buckle 12 in the downward and rearward direction, the rear wire anchor 82 rotates forward with the upper end as the center. The movement of the buckle 12 is regulated by the rear-side regulating claw 98 and the rear-side wire anchor 82 (wire 84) is regulated to be bent in a convex shape toward the front side. It is rotated to the front side (the side in which the opening direction of the insertion port 20A does not oppose the parallel direction of the insertion of the tongue 36 to the insertion port 20A), so that the opening direction of the insertion port 20A is directed upward and rearward. Is regulated.

  For this reason, when the buckle 12 is pressed on the circumferential surface of the insertion port 20A by the tongue 36, the buckle 12 is stably moved to the side where the opening direction of the insertion port 20A is opposed to the insertion direction of the tongue 36 to the insertion port 20A. Can rotate.

  [Sixth Embodiment]

  FIG. 15 is a front view of a buckle device 100 according to a sixth embodiment of the present invention viewed from the front side.

  The buckle device 100 according to the present embodiment has substantially the same configuration as that of the fifth embodiment, but differs in the following points.

  As shown in FIG. 15, in the buckle device 100 according to the present embodiment, the buckle 12 is not provided with the restriction pawl 98 in the fifth embodiment.

  The wire anchor 82 of the support mechanism 22 is inserted into a long rectangular cylindrical cable bearer 102 as a restricting means, and the cable bearer 102 extends from the upper part of the wire anchor 82 (lower part of the anchor 86) to the lower part (upper part of the anchor 88). It is arranged over. The cable bear 102 is configured by a plurality of rectangular cylindrical pieces 104 (see FIGS. 16A to 16C), and the plurality of pieces 104 are arranged along the longitudinal direction of the cable bear 102. The upper end of the lower piece 104 is rotatably connected to the lower end of the upper piece 104. The cable bear 102 is in a natural state in which the wire anchors 82 are linearly extended by the natural state in which the wire anchors 82 are linearly extended.

  In the front cable bear 102, the upper end of the lower piece 104 is in contact with the lower end of the upper piece 104 from the front side, and the lower piece 104 is allowed to rotate to the rear side with respect to the upper piece 104. In addition, the rotation of the lower piece 104 to the front side with respect to the upper piece 104 is restricted. For this reason, the front cable bearer 102 is allowed to be bent convexly to the front side, and the front wire anchor 82 (wire 84) is allowed to be bent convexly to the front side, and to the rear side. The convex curve is restricted, and the front wire anchor 82 (wire 84) is restricted from being curved convexly to the rear side.

  In the rear cable carrier 102, the upper end of the lower piece 104 is in contact with the lower end of the upper piece 104 from the rear side, and the lower piece 104 is allowed to rotate forward with respect to the upper piece 104. In addition, rotation of the lower piece 104 to the rear side with respect to the upper piece 104 is restricted. For this reason, the rear cable bearer 102 is allowed to be curved in a convex shape toward the rear side, and the rear wire anchor 82 (wire 84) is allowed to be curved in a convex shape toward the rear side. It is regulated that the front side is bent in a convex shape, and the rear side wire anchor 82 (wire 84) is regulated to be bent in a convex shape toward the front side.

  As shown in FIG. 17 (A), when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and forward direction, the buckle 12 is inserted into the tongue 36 on the lower side of the circumferential surface of the insertion port 20A. By being pushed in the direction toward the front side, the front wire anchor 82 (wire 84) and the cable bear 102 are curved convexly toward the front side, and the rear wire anchor 82 and the cable bear 102 are centered on the lower end in a natural state. Is rotated to the front side. For this reason, the buckle 12 is rotated to the front side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the rear side.

  On the other hand, as shown in FIG. 17B, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and rearward direction, the buckle 12 is inserted into the tongue 36 on the circumferential surface of the insertion port 20A. By pressing in the direction toward the lower side and the rear side, the rear wire anchor 82 (wire 84) and the cable bear 102 are curved in a convex shape toward the rear side, and the front wire anchor 82 and the cable bear 102 are naturally In the state, it is rotated rearward around the lower end. For this reason, the buckle 12 is rotated to the rear side at the lower end, and the opening direction of the insertion port 20A is directed in the direction toward the upper side and the front side.

  Further, when the buckle 12 is pressed against the tongue 36, the one wire anchor 82 and the cable bear 102 are bent against the elastic force of the wire 84, and the buckle 12 is rotated. For this reason, when the locking of the tongue 36 to the buckle 12 is released, the one wire anchor 82 and the cable bear 102 are released from the bending by the elastic force of the wire 84 and are naturally stretched linearly. By returning, the buckle 12 is rotated to the initial position.

  Further, as shown in FIG. 17 (A), when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and forward direction, the front wire anchor 82 (wire 84) is convex to the rear side. By restricting the front cable bearer 102 to be bent, the buckle 12 is rotated from the lower end to the rear side so that the opening direction of the insertion port 20A is directed toward the upper side and the front side. .

  On the other hand, as shown in FIG. 17B, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and rearward direction, the rear wire anchor 82 (wire 84) protrudes forward. When the rear cable bearer 102 is restricted from being bent in a shape, the buckle 12 is rotated from the lower end to the front side so that the opening direction of the insertion port 20A is directed toward the upper side and the rear side. Is done.

  Thereby, also in this embodiment, the same operation and effect as the fifth embodiment can be obtained.

  [Seventh Embodiment]

  FIG. 18 shows a buckle device 110 according to a seventh embodiment of the present invention in a front view as seen from the front side.

  The buckle device 110 according to the present embodiment has substantially the same configuration as the first embodiment, but differs in the following points.

  As shown in FIG. 18, in the buckle device 110 according to the present embodiment, the support mechanism 22 is not provided with the rotating plate 24 and the support plate 30 in the first embodiment.

  The support mechanism 22 is provided with a long plate-like stay 112 as a support member, and the stay 112 is rotatably supported on the vehicle body side at the lower end. The upper end of the stay 112 is inserted into the buckle 12 (inside the cover 14), and supports the body 16 in a rotatable manner.

  Between the buckle 12 and the vehicle body side, a gear train 114 is provided as guide means and rotation means.

  A fixed gear 116 (vehicle body side gear) is provided at the lowermost part of the gear train 114. The fixed gear 116 is fixed to the vehicle body so as not to rotate, and is coaxial with the rotation shaft at the lower end of the stay 112. Has been placed. A rotation gear 118 (buckle gear) is provided at the uppermost part of the gear train 114. The rotation gear 118 is fixed to the body 16 in the buckle 12 (in the cover 14) so as not to rotate, and the stay is fixed. 112 is arranged coaxially with the pivot shaft at the upper end. Further, the lower portion of the rotating gear 118 is exposed from the lower portion of the buckle 12 (lower portion of the cover 14).

  The gear train 114 is provided with an odd number (three in the present embodiment) of intermediate gears 120 between the fixed gear 116 and the rotation gear 118, and each of the odd number of intermediate gears 120 is provided with a stay. The fixed gear 116 and the rotating gear 118 are communicated with each other while being rotatably supported by 112.

  Between the stay 112 and the vehicle body side, the buckle 12 or the gear train 114, a long urging means (not shown) as a returning means is stretched. The insertion port 20A of the buckle 12 is opened upward in a state parallel to the vertical direction.

  Here, the support mechanism 22 rotatably supports the buckle 12 at the stay 112 in the lower portion of the buckle 12 (on the side opposite to the insertion port 20A), and the stay 112 is rotated around the lower end, When the intermediate gear 120 is rotated by the fixed gear 116, the rotation gear 118 is rotated by the intermediate gear 120, and the buckle 12 is guided by the gear train 114, while being above the upper surface (insertion opening 20 </ b> A) (the tongue 36. The stay 112 is rotatable about the insertion side.

  For this reason, when the tongue 36 is inserted into the insertion port 20A of the buckle 12, the insertion direction of the tongue 36 into the insertion port 20A does not oppose the opening direction (upward) of the insertion port 20A (become non-parallel). ) Even if the buckle 12 is pressed against the tongue 36 (tip 36A) on the peripheral surface of the insertion port 20A, the buckle 12 faces the opening direction of the insertion port 20A opposite to the insertion direction of the tongue 36 into the insertion port 20A ( It is rotated relative to the stay 112 to the parallel side.

  Specifically, as shown by a two-dot chain line in FIG. 18, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and forward direction, the buckle 12 is inserted into the tongue 36 of the insertion port 20A. The intermediate gear 120 is rotated by the fixed gear 116 and is rotated by the intermediate gear 120 when the stay 112 is pressed to the front side with the lower end as a center by being pressed downward and forward in the circumferential surface. 118 is rotated forward from the bottom. For this reason, the buckle 12 is rotated to the front side at the lower end with respect to the stay 112, and the opening direction of the insertion port 20A is directed upward (may be a direction toward the upper side and the rear side).

  On the other hand, as shown by a one-dot chain line in FIG. 18, when the tongue 36 is inserted into the insertion port 20A of the buckle 12 in the downward and rearward direction, the buckle 12 is inserted into the tongue 36 around the circumferential surface of the insertion port 20A. Is pressed downward and toward the rear side, and the stay 112 is rotated rearward about the lower end, whereby the intermediate gear 120 is rotated by the fixed gear 116 and the rotation gear is rotated by the intermediate gear 120. 118 is rotated back to the bottom. For this reason, the buckle 12 is rotated to the rear side at the lower end with respect to the stay 112, and the opening direction of the insertion port 20A is directed upward (may be a direction toward the upper side and the front side).

  Further, when the buckle 12 is pressed against the tongue 36, the stay 112 is rotated against the urging force of the urging means, and the buckle 12 is rotated with respect to the stay 112. For this reason, when the locking of the tongue 36 to the buckle 12 is released, the stay 112 is rotated to the initial position by the urging force of the urging means, so that the buckle 12 is rotated to the initial position. .

  Thereby, also in this embodiment, the same operation and effect as in the first embodiment can be obtained.

  In the first to seventh embodiments, the support mechanism 22 is supported on the vehicle body side. However, the support mechanism 22 may be supported on the seat 38.

DESCRIPTION OF SYMBOLS 10 Buckle apparatus 12 Buckle 20A Insertion slot 22 Support mechanism 32 Support hole (guide means)
34 Webbing 36 Tongue 40 Buckle device 50 Buckle device 70 Buckle device 72 Support link (guide means)
80 Buckle device 82 Wire anchor (guide means)
98 Restriction claw (regulation means)
100 Buckle device 102 Cable bear (regulating means)
110 Buckle device 114 Gear train (guide means)

Claims (3)

An insertion port is provided, and a tongue provided on the webbing is inserted into the insertion port and locked so that the webbing is attached to a vehicle occupant.
The buckle is supported so as to be rotatable about the tongue insertion side from the insertion port, and when the tongue is inserted into the insertion port, the buckle is pressed against the tongue so that the buckle is opened to the insertion port. A support mechanism that is rotated to the side that opposes the direction of insertion of the tongue into the insertion port;
Buckle device equipped with. 2. A guide means for guiding rotation of the buckle toward a side in which an opening direction of the insertion port is opposed to an insertion direction of the tongue when the buckle is pressed against the tongue. The buckle device described. 2. A restricting means for restricting the rotation of the buckle to the side where the opening direction of the insertion port does not oppose the insertion direction of the tongue when the buckle is pressed against the tongue. Or the buckle apparatus of Claim 2.

Images