JP2016000101A - buckle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buckle that can ensure the mounting state of a battery holder even when a load from the outside is applied to the buckle.SOLUTION: A battery holder 68 is inserted into a holder mounting part 66 of a buckle cover 12 from the back of the buckle cover 12, and the battery holder 68 is mounted on the buckle cover 12. When a lock plate 34 is rotated downward and a tongue 20 is locked with the lock plate 34, a left arm piece 42 of the lock plate 34 is opposed to a contact piece 74 at the back of the contact piece 74 of the battery holder 68. Thereby, the battery holder 68 is prevented from moving backward, and the battery holder 68 can be prevented from falling from the buckle cover 12.

Description

  The present invention relates to a buckle in which a battery is disposed inside.

  There is a configuration in which an electric circuit including an electric component such as a buckle switch is provided inside a buckle of a seat belt device (see Patent Document 1 below as an example). Further, when the above-described electric circuit is configured by providing a battery inside the buckle, if a battery holder that can be attached to and detached from the buckle from the outside of the buckle is provided, the battery can be easily replaced when the battery is consumed. However, loads in various directions are applied to the buckle.

JP 2001-211 A

  In view of the above background, an object of the present invention is to obtain a buckle that can secure a battery holder mounted state even when an external load acts on the buckle.

  The buckle according to claim 1, a buckle body that locks a tongue of a seat belt device, a battery that constitutes a part of an electric circuit provided in the buckle body by being disposed in the buckle body, A battery holder to which the battery is attached and which can be attached to and detached from the buckle body from the outside of the buckle body; and the battery holder engaged with the battery holder attached to the buckle body. Holding means for holding.

  In the buckle according to claim 1, since the battery holder is held by the holding means by engaging the holding means with the battery holder attached to the buckle body, when an external load acts on the buckle body. The battery holder can be secured.

  A buckle according to a second aspect is the buckle according to the first aspect, wherein the battery holder is held by the holding means in a locked state of the tongue inserted into the buckle body.

  In the buckle according to the second aspect, the battery holder is held by the holding means in a locked state of the tongue inserted into the buckle body. For this reason, the mounting state of the battery holder can be ensured even when an external load is applied to the buckle body while the webbing of the seat belt device is mounted on the occupant.

  According to a third aspect of the present invention, in the buckle according to the first or second aspect, the holding of the battery holder by the holding means is released by the pulling operation of the tongue from the buckle body.

  In the buckle according to the third aspect, since the holding of the battery holder by the holding means can be released by the operation of pulling out the tongue from the buckle body, no special operation is required for releasing the holding of the battery holder by the holding means.

  The buckle according to claim 4 is the buckle according to any one of claims 1 to 3, wherein the buckle is engaged with the tongue inserted into the buckle body, thereby locking the tongue. The battery holder is held in an engaged state with the tongue, and a lock member is provided that releases the battery holder when the engagement with the tongue is released.

  According to a fourth aspect of the present invention, the lock member that locks when engaged with the tongue is used as the holding means, and the battery holder is released from being held by the lock member when the engagement of the lock member with the tongue is released. Is done. For this reason, a special releasing operation is not required for releasing the holding of the battery holder.

  The buckle according to claim 5 is the buckle according to any one of claims 1 to 3, wherein the tongue is unlocked by a releasing operation and the holding of the battery holder by the holding means is released. Has a release button.

  In the buckle according to claim 5, when the release button is released, the tongue is unlocked and the holding of the battery holder by the holding means is released, so that the holding of the battery holder by the holding means is released. No special holding release means is required.

  As described above, with the buckle according to the present invention, it is possible to ensure the mounting state of the battery holder even when an external load acts on the buckle.

It is a disassembled perspective view which shows the buckle which concerns on 1st Embodiment. It is side surface sectional drawing which shows the buckle which concerns on 1st Embodiment. It is side surface sectional drawing corresponding to FIG. 2 which shows the state by which the battery holder was hold | maintained by the holding means. It is a perspective view which shows the principal part of the buckle which concerns on 2nd Embodiment. It is a perspective view corresponding to FIG. 4 which shows the state by which holding | maintenance of the battery holder by a holding means was cancelled | released. It is a disassembled perspective view which shows the holding means of the buckle, battery, and battery holder which concern on 2nd Embodiment. It is a perspective view which shows the state by which the battery holder was hold | maintained at the holding means of the buckle which concerns on 2nd Embodiment.

  1 to 7, the arrow FR indicates the front side of the main buckles 10 and 80, the arrow LH indicates the left side of the main buckles 10 and 80, and the arrow UP indicates the upper side of the main buckles 10 and 80. The front-rear direction, the left-right direction, and the up-down direction of these buckles 10, 80 are not related to the front-rear direction, the left-right direction, and the up-down direction of the vehicle on which the buckles 10, 80 are mounted.

<Configuration of First Embodiment>
As shown in FIG. 1, the buckle 10 includes a buckle cover 12 constituting a buckle body. The buckle cover 12 is formed by assembling the upper cover 14 and the lower cover 16. As shown in FIGS. 2 and 3, an opening 18 is formed at the front end of the buckle cover 12, and when the occupant wears the webbing of the seat belt device, as shown in FIG. The tongue 20 is inserted into the buckle cover 12 from the opening 18. As shown in FIGS. 1 and 2, a buckle body 22 is provided inside the buckle cover 12. The buckle body 22 includes a bottom plate 24, and a through-hole 26 penetrating vertically is formed in the bottom plate 24. An ejector 28 is provided inside the through-hole 26 so as to be movable in the front-rear direction. The ejector 28 is moved rearward by being pressed by the tongue 20 inserted into the buckle cover 12. Further, an eject spring 30 is provided behind the ejector 28, and the ejector 28 is urged forward by the eject spring 30.

  Further, side plates 32 are erected from both left and right ends of the bottom plate 24 of the buckle body 22, and a lock plate 34 as a lock member and holding means is provided between the side plates 32. A support piece 36 extends outward in the left-right direction from the rear end of the lock plate 34. These support pieces 36 are inside the notches 38 formed in the both side plates 32 of the buckle body 22, whereby the lock plate 34 is rotated up and down around an axis whose axial direction is the left-right direction. It is supported on both side plates 32 as possible.

  Further, a pair of left and right leg pieces 40 extend downward from the front portion of the lock plate 34 with respect to the support piece 36, and the tip of the leg piece 40 faces the ejector 28 in the front-rear direction. When the leg piece 40 is pressed from the front by the ejector 28 by moving the ejector 28 backward, the lock plate 34 is rotated downward (in the direction of arrow A in FIGS. 1 and 2). A pair of left and right arm pieces 42 extend outward in the left-right direction from the front portion of the lock plate 34 with respect to the leg pieces 40. When the lock plate 34 is rotated downward, these arm pieces 42 are brought into contact with the contact portions 44 set in front of the notches 38 in the side plates 32, thereby Rotation is limited.

  Further, a middle portion in the left-right direction at the front end of the lock plate 34 is a lock portion 46. The lock portion 46 is bent downward, and the tip of the lock portion 46 is in contact with the upper surface of the ejector 28. Accordingly, the lock plate 34 is prevented from rotating downward, and the lock plate 34 can be rotated downward by moving the ejector 28 rearward. When the lock plate 34 is rotated downward, the lock piece 48 provided on the front upper side of the lock plate 34 is rotated by the urging force of the compression coil spring 52. As a result, the lock piece 48 comes into contact with the upper surface of the front end portion of the lock plate 34 from above, and the lock plate 34 is prevented from rotating upward.

  The end of the compression coil spring 52 opposite to the lock piece 48 is locked to the release button 54. The release button 54 is provided inside the buckle cover 12 on the front end side of the buckle cover 12. The release button 54 includes a pair of left and right attachment pieces 58. The rear end portions of both attachment pieces 58 are engaged with a rectangular hole 60 formed in the side plate 32 of the buckle body 22, whereby the release button 54 can be slid by a fixed stroke in the front-rear direction. Further, the release button 54 is formed with a pressing portion 62, and when the release button 54 is moved backward, the lock piece 48 is pressed backward by the pressing portion 62. Accordingly, when the lock piece 48 is rotated, the contact state between the lock piece 48 and the upper surface of the front end portion of the lock plate 34 is canceled.

  On the other hand, as shown in FIG. 1, a circuit board 64 having an electric circuit is provided inside the buckle cover 12, and the electric circuit of the circuit board 64 is a buckle switch or a transmitter provided in the buckle cover 12. (Both not shown) are electrically connected. When the tongue 20 is inserted into the buckle cover 12 until the lock portion 46 of the lock plate 34 can be engaged with the hole 20A of the tongue 20, the buckle switch is switched from the switch-off state to the switch-on state. As a result, a switch-on signal that is a radio signal is output from the transmitter. As a result, for example, the warning light is turned on or off, the engine can be started, the operating state of the webbing retractor of the seat belt device is set, and the operating state of the airbag device is adjusted. Or

  Further, a holder mounting portion 66 is formed at the rear end portion of the buckle cover 12. The holder mounting portion 66 is a slit-like opening that is long in the vertical direction and is opened at the rear end of the buckle cover 12, so that the battery holder 68 can be inserted into the buckle cover 12 from the holder mounting portion 66. Yes. Here, the left arm piece 42 of the lock plate 34 extends further to the left side than the left side plate 32 of the buckle body 22, and the tip of the left arm piece 42 is wrapped around the holder mounting portion 66 in the front-rear direction. Yes.

  The battery holder 68 is formed in a plate shape. The thickness direction of the battery holder 68 is along the left-right direction, and the thickness dimension is set to be the same as the opening width dimension of the holder mounting portion 66, and the battery holder 68 is located behind the buckle cover 12. It can be inserted into the buckle cover 12 from the holder mounting portion 66 at the end. The battery holder 68 is inserted into the buckle cover 12 by a predetermined length from the holder mounting portion 66, so that the battery holder 68 is attached to the buckle cover 12. Although a detailed description is omitted, in order to facilitate the insertion and removal of the battery holder 68 from the buckle cover 12, the guide part for guiding the battery holder 68 to the buckle cover 12 or the battery holder 68 is abutted. A stopper or the like for preventing further insertion of the battery holder 68 into the buckle cover 12 may be provided.

  A battery mounting portion 70 is formed on the battery holder 68. The battery mounting portion 70 is a substantially circular recess opened on the left side surface of the battery holder 68, and a disk-shaped button battery 72 as a battery is fitted into the battery mounting portion 70 from the left side of the battery holder 68. Thus, the button battery 72 is attached to the battery holder 68. A terminal 71 is provided on the bottom portion 70A of the battery mounting portion 70. When the button battery 72 is fitted to the battery mounting portion 70, one of the positive and negative poles of the button battery 72 set in advance is set. The electrode contacts the terminal 71. When the battery holder 68 is inserted into the holder mounting portion 66 and mounted on the buckle cover 12, the button battery 72 is disposed in the buckle cover 12. In this state, the other preset electrode out of the positive electrode and the negative electrode of the button battery 72 is electrically connected to the electric circuit of the circuit board 64 in the buckle cover 12.

  A front portion of the battery holder 68 relative to the battery mounting portion 70 is a notch 73. The notch 73 is penetrated in the left-right direction of the battery holder 68 and opened at the front end of the battery holder 68. When the battery holder 68 is mounted on the holder mounting portion 66 from the rear end of the buckle cover 12, the tip of the left arm piece 42 of the lock plate 34 is located inside the notch 73 from the front end opening of the notch 73. enter. Further, the battery holder 68 has a contact piece 74 formed thereon. The contact piece 74 extends upward from the opening on the front side of the notch 73. Further, with the arm piece 42 of the lock plate 34 in contact with the contact portion 44 of the side plate 32 of the buckle body 22, the upper end portion of the contact piece 74 is in front of the left arm piece 42 and the left arm piece 42. The formation position of the contact piece 74 that faces the tip is set.

<Operation and Effect of First Embodiment>
In the buckle 10, when the tongue 20 is inserted from the opening 18 at the front end portion of the buckle cover 12 so that the occupant wears the webbing of the seat belt device, the tip of the tongue 20 comes into contact with the ejector 28. In this state, when the tongue 20 is further inserted into the buckle cover 12 against the urging force of the eject spring 30, the ejector 28 is pressed by the tongue 20 and moved rearward. When the ejector 28 is moved rearward from the lock portion 46 of the lock plate 34, the leg piece 40 of the lock plate 34 is pressed by the ejector 28. As a result, the lock plate 34 is rotated downward (in the direction of arrow A in FIGS. 1 and 2), and the lock portion 46 of the lock plate 34 penetrates the hole 20A of the tongue 20 as shown in FIG. .

  As a result, the tongue 20 is locked to the lock plate 34. Further, when the lock piece 48 can be turned by turning the lock plate 34 downward, the lock piece 48 is turned by the urging force of the compression coil spring 52, and the lower surface of the lock piece 48 is moved to the lock plate 48. 34 is brought into contact with the upper surface of the front end portion. As a result, the lock plate 34 is prevented from turning upward, the locked state of the tongue 20 is maintained, and the webbing is attached to the occupant's body.

  In addition, when the lock plate 34 is pivoted downward in this manner, both arm pieces 42 of the lock plate 34 come into contact with the contact portions 44 of the both side plates 32 of the buckle body 22, and the left arm piece 42. Is opposed to the contact piece 74 behind the contact piece 74 of the battery holder 68. As a result, the battery holder 68 is held by the lock plate 34. When the battery holder 68 tries to move rearward in this state, the contact piece 74 comes into contact with the tip of the arm piece 42 and the battery holder 68 is prevented from moving backward. In this state, the tongue 20 is locked to the lock plate 34 and the webbing is attached to the occupant's body. Therefore, even if a load is applied to the buckle cover 12 from the outside of the buckle cover 12 when the vehicle travels or a vehicle collides, the battery holder 68 can be prevented from moving backward, and the battery holder 68 is attached to the buckle cover 12. A state can be secured.

  On the other hand, when the release button 54 is slid rearward by pressing the release button 54 from the front, the lock piece 48 is pressed and rotated by the pressing portion 62 of the release button 54. Thereby, the contact state between the lock piece 48 and the upper surface of the front end portion of the lock plate 34 is eliminated. In this state, when the ejector 28 and the tongue 20 are moved forward by the urging force of the eject spring 30, the lock portion 46 of the lock plate 34 is pressed forward by the ejector 28 and the tongue 20. As a result, the lock plate 34 is rotated upward, and the lock of the tongue 20 by the lock plate 34 is released.

  Further, when the lock plate 34 is pivoted upward in this manner, the left arm piece 42 of the lock plate 34 is moved above the contact piece 74 of the battery holder 68 as shown in FIG. The As a result, when the front-rear facing state between the front end portion of the left arm piece 42 and the upper end portion of the contact piece 74 is canceled, the holding state of the battery holder 68 by the lock plate 34 is released. For example, the webbing is not attached to the occupant's body during vehicle maintenance. For this reason, the battery holder 68 can be easily removed from the buckle cover 12, and the button battery 72 can be easily replaced.

  Here, in the present embodiment, the lock plate 34 for locking the tongue 20 also serves as a holding means for holding the battery holder 68. For this reason, it is not necessary to configure the holding means for holding the battery holder 68 as a separate part, and it is possible to prevent an increase in the number of parts due to the provision of the holding means and to suppress an increase in cost.

  Further, the lock of the tongue 20 by the lock plate 34 is released, whereby the holding of the battery holder 68 by the lock plate 34 is released. For this reason, a special holding release operation for releasing the holding of the battery holder 68 is unnecessary, and a special releasing part for releasing the holding of the battery holder 68 is also unnecessary.

  In the present embodiment, the lock plate 34 also serves as a holding means. However, the holding means may be set other than the lock plate 34. For example, the ejector 28 and the lock piece 48 that move when the tongue 20 is locked and unlocked by the lock plate 34 may be used as the holding means, and further, the holding means that moves when the tongue 20 is locked and unlocked by the lock plate 34 is locked. You may provide separately from the plate 34, the ejector 28, and the lock piece 48. FIG.

<Second Embodiment>
Next, a second embodiment will be described. Basically, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 4, the buckle 80 includes a substrate holder 82 as a holding means. As shown in FIG. 6, the substrate holder 82 has a hollow shape and is opened below the middle portion in the vertical direction at the lower end and the front end. A part of the circuit board 64 (not shown in each of FIGS. 4 to 7) is disposed inside the substrate holder 82, whereby the circuit board 64 is held by the substrate holder 82. As shown in FIG. 4, the substrate holder 82 is provided on the left side of the buckle body 22 and is held by the buckle cover 12 or the buckle body 22 inside the buckle cover 12 (not shown in each of FIGS. 4 to 7). Is done.

  As shown in FIG. 4, the buckle 80 includes a battery holder 84. As shown in FIG. 6, the battery attachment portion 70 of the battery holder 84 is opened on the right side surface of the battery holder 84, and the button battery 72 is fitted to the battery attachment portion 70 from the right side of the battery holder 84. The lower cover 16 of the buckle cover 12 corresponding to the battery holder 84 is formed with a slit hole (not shown) penetrating vertically, and the battery holder 84 is penetrated through the slit hole to form a substrate from the lower end of the substrate holder 82. It is inserted into the holder 82 (see FIG. 7). As a result, the battery holder 84 is attached to the buckle cover 12 via the substrate holder 82.

  Further, as shown in FIG. 6, a claw piece 86 extends upward from the upper end surface of the front end portion of the battery holder 84. A window portion 88 is formed in the substrate holder 82 corresponding to the upper end portion of the claw piece 86. The window 88 is opened at the front surface and the right side surface of the substrate holder 82 and communicates with the inside and outside of the substrate holder 82. When the battery holder 84 is inserted into the substrate holder 82, the claw piece 86 is elastically bent backward. In this state, when the battery holder 84 is inserted into the substrate holder 82 until the upper end portion of the claw piece 86 faces the window portion 88 in the front-rear direction, as shown in FIG. The claw piece 86 enters the inside of the portion 88 and is held by the substrate holder 82. In this state, the downward movement of the battery holder 84 with respect to the substrate holder 82 (the removal direction of the battery holder 84) is prevented.

  On the other hand, as shown in FIG. 4, a holding release portion 90 is formed on the release button 54 of the buckle 80. The holding release portion 90 is formed to protrude from the rear end of the mounting piece 58 on the left side of the release button 54 and faces the window portion 88 of the substrate holder 82 in the front-rear direction. When the release button 54 is moved rearward until the pressing portion 62 of the release button 54 presses the lock piece 48 and rotates the lock piece 48, the holding release portion 90 is moved to the window portion 88 as shown in FIG. The upper end portion of the claw piece 86 of the battery holder 84 is pressed by the holding release portion 90. As a result, when the claw piece 86 is elastically bent backward, the facing between the upper end portion of the claw piece 86 and the window portion 88 is canceled, and the holding of the battery holder 84 by the substrate holder 82 is released. Accordingly, the battery holder 84 can move downward, and the battery holder 84 can be detached from the buckle cover 12.

  Thus, in the present embodiment, the release button 54 is operated and the claw piece 86 of the battery holder 84 is not pressed against the holding release portion 90 of the release button 54 in the same manner as the extraction operation for extracting the tongue 20 from the buckle cover 12. Then, the holding of the battery holder 84 by the substrate holder 82 is not released. For this reason, even when a load is applied to the buckle cover 12 of the buckle 80 when the vehicle travels or when a vehicle collides, the battery holder 68 can be prevented from moving backward, and the battery to the substrate holder 82 and thus the buckle cover 12 can be prevented. The mounting state of the holder 68 can be ensured.

  In the present embodiment, the holding release unit 90 is formed on the release button 54 for releasing the lock of the tongue 20. For this reason, it is not necessary to configure the holding release means for releasing the holding of the battery holder 84 by the substrate holder 82 as a separate part, and it is possible to prevent an increase in the number of parts due to the provision of the holding release means, thereby suppressing an increase in cost. it can.

  In the present embodiment, the holding release moving stroke of the release button 54 until the holding release part 90 of the release button 54 presses and bends the claw piece 86 of the battery holder 84 and the pressing part 62 of the release button 54 are The unlocking movement stroke of the release button 54 until the lock piece 48 was pressed and the lock piece 48 was rotated was the same. However, the holding release moving stroke of the release button 54 may be larger than the unlocking moving stroke or smaller than the unlocking moving stroke.

  In the present embodiment, the release button 54 is provided with the holding release unit 90. However, the holding release unit is provided separately from the release button 54, and the holding release unit is operated to operate the substrate holder 82 or the like. The holding of the battery holder by the holding means may be released.

  Further, in each of the above embodiments, the lock plate 34 and the substrate holder 82 are used as the holding means. However, the configuration of the holding means is not limited to such a configuration. For example, the battery holder may be fixed to the buckle cover with a screw as a holding means while the battery holder is attached to the buckle cover, and the holding means holds the battery holder with the battery holder attached to the buckle cover. If it is the structure to perform, it will not be limited to the specific aspect.

10 Buckle 12 Buckle cover (Buckle body)
20 tongue 34 lock plate (locking member, holding means)
54 Release button 64 Circuit board (electrical circuit)
68 Battery holder 72 Button battery (battery)
80 Buckle 82 Substrate holder (holding means)
84 Battery holder

Claims (5)

A buckle body for locking the tongue of the seat belt device;
A battery constituting a part of an electric circuit provided in the buckle body by being disposed in the buckle body;
A battery holder to which the battery is attached and attached to and detached from the buckle body from the outside of the buckle body;
A holding means for holding the battery holder by engaging with the battery holder mounted on the buckle body;
With a buckle.   The buckle according to claim 1, wherein the battery holder is held by the holding means in a locked state of the tongue inserted into the buckle body.   The buckle according to claim 1 or 2, wherein the holding of the battery holder by the holding means is released by an operation of extracting the tongue from the buckle body.   By locking the tongue by being engaged with the tongue inserted into the buckle body, holding the battery holder in an engaged state with the tongue, and releasing the engagement with the tongue The buckle according to any one of claims 1 to 3, wherein the holding member is a lock member that releases the battery holder.   The buckle according to any one of claims 1 to 3, further comprising a release button for releasing the lock of the tongue by the releasing operation and releasing the holding of the battery holder by the holding means.

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