JP2020050140A - Seat belt wrong operation prevention tool - Google Patents

Abstract

To provide a novel seat belt wrong operation prevention tool which can be easily used when wearing a seat belt, and can be easily stored when not in use, and which is extremely easy to use.SOLUTION: A seat belt wrong operation prevention tool 1 comprises a flat wrong operation prevention body 2 which covers a release button U2 of a buckle U and prevents push-in operation thereof, and a release button push-in unit which performs push-in of the release button U2 through the body and releases restraint by a seat belt SB. A tongue insertion hole 21 through which a tip of a tongue plate T is inserted, a belt locking hole 22 having a belt locking opening 22a, and a push-in unit insertion hole 23 in which the release button push-in unit is inserted are formed on the wrong operation prevention body 2. During non-use of the wrong operation prevention body 2, a belt body R is accommodated in the belt locking hole 22 through the belt locking opening 22a, and the wrong operation prevention body can be locked on the seat belt SB.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a safety device for a seat belt mounted on an automobile, for example, and is provided so as to cover a buckle when the seat belt is fastened, so as to prevent an inadvertent release of a tongue plate fitted into the buckle. The present invention relates to a novel seat belt erroneous operation prevention tool.

  As shown in FIG. 1A as an example, the seat belt SB restrains (fixes) the body of the occupant M who has boarded an automobile or the like on the seat S, and receives a severe impact due to an accident or the like. This is also a belt-shaped safety device that prevents the occupant (occupant) M from being thrown out of the seat. Further, this type of seat belt SB includes a belt main body R having an adjustable feeding length, a tongue plate (hook) T attached to the belt main body R, and a buckle U fixedly installed on the vehicle body side. When the seat belt is worn, the tip of the tongue plate T is inserted into the buckle U to hold and lock the two (lock), thereby restraining the body of the occupant M to the seat S. Of course, in order to release the restraint by the seat belt SB, the lock is released by pressing a release button U2 (see FIG. 1B) provided on the buckle U, and the tongue plate T is removed from the buckle U.

By the way, for example, various people who take a car or the like are assumed. For example, a child, a dementia patient or a person with intellectual disability may also get in the car, and such a person may erroneously get a seat belt SB (buckle U) while running. , The tongue plate T fitted on the buckle U may be released (the restraint by the seat belt SB may be released).
For this reason, a device for preventing such erroneous operation (erroneous release) has already been proposed (for example, see Patent Documents 1 and 2).
Here, the above-mentioned Patent Documents 1 and 2 are basically designed to cover a portion other than the bottom of the buckle U into which the tongue plate T is inserted with a casing-like cover so as not to press the release button U2 by mistake. For this reason, the idea of closing (concealing) the release button U2 is an extremely easy-to-understand and reasonable idea.

However, in the case of a casing-like cover body that entirely covers the outer shape of the buckle U, the cover body is practically bulky, and in a narrow car or the like, there is a case where a storage space when not in use is troublesome.
Further, such an erroneous operation prevention device (the above-mentioned cover body) is required to be used immediately when the seat belt is fastened, so that it is required that the device can be immediately taken out as a storage place. Specifically, for example, it is easy to think that the erroneous operation prevention device is stored in the dashboard, but even a small passenger car has four or five passengers, and thus the erroneous operation prevention device (and moreover) It is not practical to always store bulky items in the dashboard, given the limited dashboard space.
In addition, in a mode in which the number of erroneous operation preventing devices is accommodated in the dashboard on the front side, a person sitting in the rear seat is required to use the dashboard on the front side whenever the passenger gets on and off (every time when the seat belt SB is fastened / released). It is stored or removed from here, which is not preferable in terms of usability.
For this reason, there has been a demand for the development of a more convenient seat belt erroneous operation prevention device that does not become bulky in the device itself.

JP 2001-287620 A JP 2010-207256 A

  The present invention has been made in view of such a background, and is designed to be easily used when the seat belt is fastened and easily stored when not in use. The development of tools was a technical issue.

First, the seat belt erroneous operation prevention device according to claim 1
The tongue plate attached to the belt body is inserted into the buckle attached to the vehicle body side, which is provided on the buckle of the seat belt that restrains the occupant's body to the seat, and the buckle release button is accidentally pressed. It is a seat belt erroneous operation prevention device that has no
The device for preventing erroneous operation of the seat belt covers the release button of the buckle, and a flat erroneous operation prevention body that blocks the pushing operation of the release button, and the release button is pushed through the erroneous operation prevention body to release the restraint by the seat belt. Release button pusher to perform
Further, the erroneous operation prevention main body has a tongue insertion hole through which the tip of the tongue plate is inserted, a belt locking hole having a belt locking opening communicating with the outside of the erroneous operation prevention main body, and a release button pusher. And a pusher insertion hole are formed,
When the erroneous operation prevention body is not used, the belt main body is housed in the belt locking hole through the belt locking opening, and the erroneous operation prevention body can be locked to the seat belt.

In addition, the seat belt erroneous operation prevention device according to claim 2 is, in addition to the requirement according to claim 1,
The erroneous operation prevention body has a plurality of tongue insertion holes, at least one of which is also used as a pusher insertion hole, and at least one of the plurality of tongue insertion holes is also used as a belt locking hole. It consists of.

In addition, the seat belt erroneous operation preventing device according to claim 3 is, in addition to the requirement according to claim 1 or 2,
The release button pusher is characterized in that an attached portion for attaching to the belt body of the seat belt when not in use is provided.

In addition, the seat belt erroneous operation prevention device according to claim 4 is, in addition to the requirement according to any one of claims 1 to 3,
The flat erroneous operation prevention main body is provided with a hanging barb on the peripheral edge, and the barb is configured to surround the buckle above.

In addition, the seat belt erroneous operation prevention device according to claim 5 is, in addition to the requirement according to any one of claims 1, 3, and 4,
The flat erroneous operation prevention main body is provided with a front closing plate for closing a front side of the buckle.

The above object is achieved by means of the configuration of the invention described in each of these claims.
In other words, according to the first aspect of the present invention, the erroneous operation prevention main body mainly includes a flat member that prevents the pressing operation of the release button, and can be formed of, for example, a single plate. For this reason, the erroneous operation prevention body has an extremely simple configuration and does not require a large space as a storage space.
Further, since the belt for locking the erroneous operation is formed in the erroneous operation prevention main body, the erroneous operation prevention main body can be locked to the seat belt (belt main body) when not in use, and there is no need to separately secure a storage space.
In addition, in the present invention, since the release button pusher is provided and the pushbutton insertion hole is formed in the erroneous operation prevention main body, even when the release button is covered by the erroneous operation prevention body, the release button pusher is inserted through the pushbutton insertion hole. By inserting the seat belt, the release operation of the seat belt can be reliably performed.

  According to the second aspect of the present invention, a plurality of tongue insertion holes are formed in the erroneous operation prevention main body, and the tongue insertion hole is also used as a belt locking hole and a pusher insertion hole. It is sufficient to form a plurality of holes (tongue insertion holes) of the same size. Depending on the selection of which hole (tongue insertion hole) and which hole (belt locking hole / pressing tool insertion hole) are also used, a kind of The erroneous operation prevention body can be applied to various buckles (seat belts).

  According to the third aspect of the present invention, since the release button pressing tool has the attached portion, it can be attached to the belt body using the attached portion when not in use. For this reason, the storage location of the release button pusher becomes clear (there is no need to secure a separate storage location), and there is almost no risk of loss when not in use (during storage).

  According to the fourth aspect of the present invention, since the flat erroneous operation prevention main body is provided with a hanging back at the peripheral edge, erroneous operation (erroneous release) of the seat belt can be more reliably prevented. it can. In other words, if the erroneous operation prevention body is formed of only a plate member of a certain thickness, even if it covers the upper part of the buckle with this one, depending on the size and shape of the buckle or the state of the tongue plate being fitted, etc. It is possible that the main unit tilts slightly (plays) and the fingertip reaches the release button from this gap. However, the presence of the above-mentioned return prevents incorrect operation. can do.

  According to the fifth aspect of the present invention, since the flat erroneous operation prevention main body is provided with the front closing plate for closing the front side of the buckle, for example, a seat belt (buckle) having a release button on the front side of the buckle is provided. ), It is possible to reliably prevent erroneous operation (erroneous release) of the seat belt.

1A is a perspective view showing a seat belt to which a seat belt erroneous operation preventing device (one example) of the present invention is applied together with a seat, and FIG. It is a perspective view which shows an example of the same seat belt erroneous operation prevention tool in the wearing state (state in which the tongue plate was fitted in the buckle) of the seat belt. It is a top view and a sectional view (a) showing an example of an erroneous operation prevention main part, and top views (b)-(c) showing various modifications of an erroneous operation prevention main part. A perspective view (a) and a cross-sectional view (b) showing a modification in which a rim-shaped barb is provided at the peripheral edge of the erroneous operation prevention body, and a cross-sectional view (c) showing a state in which the erroneous operation prevention body is raised. It is sectional drawing (d) which shows the example of a change which turned back and was formed with the raw material different from the flat part (top surface part) of a misoperation prevention main body. It is a top view which shows various modifications of the incorrect operation prevention main body which made the belt locking opening (belt locking hole) different. A plan view (a) showing a modified example of the erroneous operation prevention main body in which the pusher insertion hole is a dedicated hole and is not used as a tongue insertion hole, and also when a plurality of dual use holes (tongue insertion holes) are formed, the dual use holes are not used. (B) is a perspective view showing a modified example in which is closed by a dummy plug. It is a perspective view which shows the modification of the erroneous operation prevention main body provided with the plate-shaped member which closes the front side of a buckle.

  The mode for carrying out the present invention includes one described in the following embodiments, and also includes various techniques that can be improved within the technical idea.

Hereinafter, prior to the description of the seat belt erroneous operation prevention device 1 of the present invention, the seat belt SB to which the present invention is applied will be described.
The seat belt SB is, for example, a safety device that restrains (fixes) a seated person M sitting on the seat S in an automobile or the like, and is a three-point type of a type in which the body is restrained by the shoulders and waist of the seated person M. Seat belts are generally widely used.
As shown in FIG. 1 as an example, this is fixedly installed on the vehicle body side, with a belt main body R whose feeding length can be appropriately adjusted, a tongue plate (hook) T attached to the belt main body R. When the seat belt is worn, the tongue plate T is inserted into the buckle U to lock and restrain the body to the seat S. Further, in order to release the restraint by the seat belt SB, for example, the occupant M pushes (operates) the release button U2 provided in the buckle main body U1 of the buckle U downward to release the locked state, The tongue plate T is removed from the buckle U.
Here, reference numeral U3 in the drawing is a tongue receiving hole for fitting the tongue plate T (particularly, the tip). Reference numeral F in the figure denotes a plate-shaped, rod-shaped or band-shaped buckle fixing rod for fixing and installing the buckle main body U1 on the vehicle body side. The buckle main body U1 rotates with respect to the buckle fixing rod F. Preferably, it can be mounted freely.

  The buckle U (buckle main body U1) has a structure in which the overall outer shape is a rectangular parallelepiped as shown in the figure, and a release button U2 is incorporated in an upper portion inside the buckle so as to be vertically movable. The release operation is performed by the occupant M pushing the release button U2 downward from above as described above. In the following description, such a buckle U will be described as a basic structure. Further, the release button U2 is provided at a position close to one side surface (the outer side surface is viewed from the occupant M fixed by the seat belt SB) of the buckle body U1, and this surface is defined as the front side of the buckle U ( In the case of a right-hand drive vehicle, when viewed from the driver sitting in the driver's seat, the driver's left outer surface, that is, the surface facing the passenger seat is the front of the buckle U, and when viewed from the passenger sitting in the passenger seat, The right outside surface of the occupant, that is, the surface facing the driver's seat is the front side of the buckle U).

  The device 1 for preventing erroneous operation of the seatbelt of the present invention is applied to such a seatbelt SB, and covers the release button U2 of the buckle U, in particular, the upper portion in the operation direction when the seatbelt is fastened. The tongue plate T is inserted into the buckle U (tongue receiving hole U3) through the seat belt erroneous operation prevention tool 1 to hold and fix the seat belt erroneous operation prevention tool 1 placed above the release button U2. I am trying to do it. That is, by inserting the tongue plate T into the tongue receiving hole U3 of the buckle U, the seat belt erroneous operation preventing device 1 provided therebetween is in a stable state with almost no backlash, and the pushing operation of the release button U2 is performed. It is a hindrance. In this manner, in the state where the tongue plate T is inserted into the tongue receiving hole U3, the seatbelt erroneous operation prevention tool 1 prevents the release button U2 from being pushed (inadvertent operation) (the fingertip does not reach the release button U2). This is intended to prevent children, dementia patients, persons with intellectual disabilities, etc., from accidentally removing the seat belt SB during traveling.

Hereinafter, the seat belt erroneous operation prevention tool 1 will be further described.
As shown in FIGS. 1 and 2, as an example, the erroneous operation prevention tool 1 is installed so as to substantially cover the release button U2 of the buckle U, and penetrates the erroneous operation prevention body 2. And a release button pressing tool 3 for pressing the release button U2.
Hereinafter, each member will be described.
First, as shown in FIGS. 1 to 3A, the erroneous operation prevention main body 2 is formed of a plate material having a substantially constant thickness, and has an outer shape that is substantially rectangular when viewed from a plane. The erroneous operation prevention main body 2 includes a tongue insertion hole 21 through which the insertion tip of the tongue plate T is inserted, and a belt locking hole 22 for locking the erroneous operation prevention main body 2 to the belt main body R of the seat belt SB. And a pusher insertion hole 23 for allowing the release button pusher 3 to penetrate.
The belt locking hole 22 is provided with a belt locking opening 22 a communicating with the outside of the erroneous operation prevention main body 2. When the seat belt erroneous operation prevention tool 1 is not used, the belt main body R is passed through the belt locking opening 22 a. The erroneous operation prevention main body 2 is housed in the belt locking hole 22 so as to be locked and held by the belt main body R (see FIG. 1).

In addition, the tongue insertion hole 21 is formed to have a size larger than at least the insertion portion (plan view cross section) of the tongue plate T, and has such a dimension setting as to allow the penetration thereof.
Further, the belt locking hole 22 is set to have a dimension capable of accommodating at least the belt main body R. Specifically, the longitudinal dimension of the belt locking hole 22 having a long hole shape is formed to be larger than the width dimension of the belt main body R.
Furthermore, the pusher insertion hole 23 is formed in a size that allows at least the release button pusher 3 to penetrate, but is formed in a size that does not allow the fingertip of a person (particularly a child) to pass through. Incidentally, in the present embodiment, the pusher insertion hole 23 is also formed in a long hole shape (in the present embodiment, the pusher insertion hole 21 is used as the tongue insertion hole 21 as described later, so the pusher insertion hole 23 is used). The shape of 23 itself does not necessarily have to be a long hole, and may be, for example, a circle.

Incidentally, in this embodiment, as shown, the tongue insertion hole 21, the belt locking hole 22, and the pusher insertion hole 23 are all formed as substantially the same elongated hole shape, and these holes also serve as holes. (For this reason, it may be referred to as a dual-purpose hole). In other words, a plurality of tongue insertion holes 21 are formed in the erroneous operation prevention main body 2 (here, three places), at least one of which is also used as the pusher insertion hole 23, and the plurality of tongue insertion holes 21. It can be said that at least one of them is also used as the belt locking hole 22. Of course, in such a dual-purpose concept, when the release operation of the seat belt SB is performed, the tongue insertion hole 21 into which the tongue plate T is not inserted among the multiple dual-purpose holes (tongue insertion holes 21) is inserted. It will be used as the hole 23 (see FIG. 2). In addition, when the seat belt SB is worn, FIG. 1 shows that the tongue plate T is fitted into the belt locking hole 22, and the tongue insertion hole 21 and the belt locking hole 22 are shared. .
According to the concept of the dual-purpose hole, a plurality of holes (tongue insertion holes 21) having the same size may be formed in the erroneous operation prevention main body 2, and which hole (tongue insertion hole 21) is inserted into which hole (belt engaging member). By selecting whether to also use the stopper hole 22 and the pusher insertion hole 23), even a kind of erroneous operation prevention main body 2 can be applied to various buckles U (seat belt SB).

  Further, as the erroneous operation prevention main body 2, a metal material such as stainless steel or a synthetic resin material can be applied. In the case where a metal material such as stainless steel is applied, the drilling of the tongue insertion hole 21 and the like can be performed by laser drilling. In the case of a synthetic resin material, holes such as the tongue insertion hole 21 can be formed by molding with a mold.

Next, the release button pusher 3 will be described.
In order to release the restraint (fixation) by the seat belt SB as described above, the release button pusher 3 is used also as the pusher insert hole 23 (here, the tongue plate T is inserted because it is also used as the tongue insert hole 21). This is an instrument that pushes the tip into the tongue insertion hole 21) and pushes down the release button U2. As shown in FIG. 2 as an example, the release button pusher 3 has an elongated tongue-like shape having a substantially constant thickness, and pushes the release button U2 at the tip (this is referred to as a push tip 31). ).
Of course, the release button pusher 3 (at least the push tip 31) is formed to have a size that can penetrate the pusher insertion hole 23 (here, the tongue insertion hole 21). The release button pushing tool 3 can also be formed of a suitable metal material or synthetic resin material.

Also, since the release button pusher 3 is not used except when the release button U2 is pressed, for example, as shown in FIG. 2, an attached portion 32 such as a clip portion should be provided on the side opposite to the push tip 31. Preferably, for example, by holding the belt body R between the clip portions (attached portions 32), the belt body R can be immediately removed from the belt body R in use, and there is no fear of being lost when not in use. .
The attached portion 32 can take various forms other than the clip portion. For example, a hook-and-loop fastener can be used. Specifically, for example, hook-and-loop fasteners are provided on both the belt body R and the release button pushing tool 3, and the release button pushing tool 3 can be detachably attached to the belt body R using this.
In addition, a form using a magnet is also possible. Specifically, for example, magnets that are attracted to each other are provided on both the belt body R and the release button pressing tool 3, and the release button pressing tool 3 is detachably attached to the belt body R using this magnetic force. Is possible.

The seat belt erroneous operation prevention tool 1 of the present invention has the basic structure as described above, and its operation mode will be described below. In the description, the operation of wearing the seat belt SB and the operation of releasing the seat belt SB will be described separately.
<Seat belt wearing operation>
(1) Before Wearing the Seat Belt First, assume that the state before the wearing of the seat belt is such that the erroneous operation prevention body 2 is locked to the belt body R as shown in FIG. 1B, for example. In this state, the belt main body R is passed through the belt locking hole 22 (in this case, also serves as the tongue insertion hole 21 having the belt locking opening 22a formed therein because the belt main body R is also used as the tongue insertion hole 21). The state has been realized.
Then, from such a state, the erroneous operation prevention main body 2 is first removed from the belt main body R. The belt main body R is removed from the belt main body R through the belt locking hole 22 (tongue insertion hole 21) using the belt locking opening 22a. And release the locked state.
In the present invention, the belt locking hole 22 is provided with at least the belt locking opening 22a, but it is not always necessary to lock the erroneous operation prevention main body 2 to the belt main body R when not in use. In short, when the non-use state continues for a long time (long term), the erroneous operation prevention body 2 is engaged with the belt main body R so that the erroneous operation prevention body 2 is not lost or damaged. It is something that can be stopped.

(2) Seat belt wearing After that, the erroneous operation prevention main body 2 removed from the belt main body R is applied so as to be placed above the buckle U, and the release button U2 is covered (hidden). Naturally, the operation of the release button U2 is obstructed by the erroneous operation prevention body 2, and the erroneous operation prevention body 2 is provided so that the pusher insertion hole 23 and the release button U2 substantially match in a plan view. (At least in the subsequent release operation, when the release button pressing tool 3 is pressed, the release button U2 is pressed so as to be pressed together).

(3) Inserting the tongue plate Next, the tongue plate T is inserted through the tongue insertion hole 21 of the erroneous operation prevention main body 2 (the belt locking hole 22 is also used in FIGS. 1 and 2). This operation is performed until the tip of the tongue plate T is fitted into the tongue receiving hole U3 of the buckle U. Then, the tongue plate T is held and locked by the buckle U by this fitting, and the occupant M is restrained (fixed) by the seat belt SB.
Further, by fitting the tongue plate T into the tongue receiving hole U3, the erroneous operation prevention main body 2 is in a stable mounting state with substantially no play above the buckle U as described above.
In FIG. 1B, the tongue plate T is shown to be inserted into the belt locking hole 22 having the belt locking opening 22a formed therein. The tongue insertion hole 21) may be used. In short, when the tongue plate T is fitted into the tongue receiving hole U3 through the erroneous operation prevention body 2, a position where the pusher insertion hole 23 and the release button U2 almost match is selected, and the insertion hole of the tongue plate T is inserted. Is selected.
Incidentally, the driver usually does not unintentionally press the release button U2 during driving (since it does not release the restraint by the seat belt SB), so that the driver buckles the erroneous operation prevention main body 2. It may not be necessary to attach to U. However, when a child, a dementia patient, an intellectually disabled person, or the like is to be boarded, a passenger other than the driver may inadvertently operate the driver's seat release button U2. It is preferable that the erroneous operation prevention body 2 is also attached to the driver's seat to prevent erroneous operations by others.

<Seat belt release operation>
(1) Before the release of the seat belt The state before the release of the seat belt is, as shown in FIG. 2 as an example, a state in which the tongue plate T is fitted into the buckle U (tongue receiving hole U3) through the erroneous operation prevention main body 2 and locked. is there. In this state, the erroneous operation prevention main body 2 is sandwiched between the tongue plate T and the buckle U, and is in a stable state held.
On the other hand, the release button pusher 3 is locked (attached) to the belt main body R by the clip portion (attached portion 32) as shown in FIG.

(2) Release of the seat belt To release the restraint by the seat belt SB from such a state, first remove the release button pusher 3 from the belt body R (to release the locked state), and then release the release button pusher 3. , Into the pusher insertion hole 23 (here, the dual-purpose tongue insertion hole 21) located above the release button U2. As a result, the release button U2 is pushed downward, the tongue plate T is separated from the buckle U, and the restraint by the seat belt SB is released.
In FIG. 2 described above, the release button pusher 3 is shown to be inserted into the central tongue insertion hole 21 (the pusher insertion hole 23), but is not necessarily limited to this, and is viewed from a plane. What is necessary is just to insert it into the tongue insertion hole 21 (the insertion member insertion hole 23) of the position corresponding to the release button insertion member 3.

(3) After releasing the seat belt After releasing the restraint of the seat belt SB in this way, this time, the release button pushing tool 3 and the erroneous operation prevention main body 2 are locked to the belt main body R (FIG. 1). (See FIG. 2).
In order to lock the release button pusher 3 to the belt main body R, a clip portion (attached portion 32) is used. To lock the erroneous operation prevention main body 2 to the belt main body R, the belt main body R is used. While slightly deforming R, it is inserted from the belt locking opening 22a into the belt locking hole 22 (here, the tongue insertion hole 21 which is also used). Incidentally, in this embodiment, since the belt locking opening 22a is formed at a position near the end of the belt locking hole 22, the belt main body R is configured to be easily housed in the belt locking hole 22. That is, when the erroneous operation prevention main body 2 is locked to the belt main body R, the belt main body R is not so deformed (for example, even if the belt main body R is not folded into two by a strong force), The R can be accommodated in the belt locking hole 22 only by moving the R approximately one-way.

[Other embodiments]
The present invention is based on the above-described embodiment as one basic technical idea. However, the following modifications can be considered.
First, in the basic embodiment described above, as shown in FIG. 3A, the tongue insertion hole 21 is formed at three places (also used as the belt locking hole 22 and the pusher insertion hole 23). The number of insertion holes 21 is not limited to this, and for example, as shown in FIG. 3B, four or more insertion holes 21 can be formed. By increasing the number of tongue insertion holes 21 (shared holes), even one erroneous operation prevention main body 2 can be applied to more buckles U (models).
In the above-described basic embodiment, the plurality of tongue insertion holes 21 (tongue insertion hole 21, belt locking hole 22, and pusher insertion hole 23) are basically all formed in the same size and shape. For example, as shown in FIG. 3 (c), the size and the shape can be made different, and this is also a structure that is assumed to be adapted to more buckles U.
In addition, in the above-described basic embodiment, the external appearance of the erroneous operation prevention main body 2 in a plan view is shown to have a substantially rectangular shape. However, for example, as shown in FIG. It is also possible to form.

Further, in the above-described basic embodiment, the erroneous operation prevention body 2 is formed of a plate material having a substantially constant thickness, which itself has a very simple configuration, is easy to manufacture, and is reasonable.
However, when the erroneous operation prevention main body 2 is formed of a plate material, the erroneous operation prevention main body 2 may be mounted depending on the size and shape of the buckle U or the state of insertion of the tongue plate T even when the tongue plate T is fitted into the buckle U. It is conceivable that the surface slightly rises or tilts (so-called rattling occurs). In such a state, there is a concern that a fingertip may enter through the gap between the raised erroneous operation prevention main body 2 and the upper end edge of the buckle main body U1 and reach the release button U2.
Therefore, in order to prevent such a situation, as shown in FIGS. 4 (a) and 4 (b), a hanging back 24 is provided on the peripheral edge of the erroneous operation prevention main body 2 as an example. A configuration that surrounds the upper part of the buckle U can be adopted. That is, the return 24 can prevent the fingertip from entering even if the erroneous operation prevention main body 2 is slightly tilted (floated) as shown in FIG. 4C, for example.

The return bar 24 is provided to prevent a fingertip from entering the clearance button between the erroneous operation prevention body 2 and the buckle U and reaching the release button U2. It is not necessary to provide the return 24 continuously on the entire circumference. For example, the return 24 may not be provided on the side opposite to the release button U2.
Incidentally, the “flat shape” described in claim 1 includes the erroneous operation prevention main body 2 provided with such a return 24.
Further, the flat portion (top surface portion) in which holes such as the tongue insertion holes 21 are formed in the erroneous operation prevention main body 2 and the barb 24 can be formed by different members. For example, FIG. This figure shows a state in which the erroneous operation prevention main body 2 is formed by fitting the flat plate portion formed of a metal plate material inside a barb 24 formed of a synthetic resin material.

Further, in the basic embodiment described above, the belt locking opening 22a is formed at a position near the end of the belt locking hole 22, so that the belt main body R can be easily housed in the belt locking hole 22. ing. However, the position of the belt locking opening 22a is not necessarily limited to the position near the end of the belt locking hole 22, and for example, as shown in FIG. It is possible to form. In this case, it may be difficult to accommodate the belt body R in the belt locking hole 22 by forcibly bending the belt body R, for example. However, the belt body R is temporarily stored in the belt locking hole 22. For example, the belt main body R rarely falls out of the belt locking hole 22 spontaneously, and the locked state of the erroneous operation prevention main body 2 can be reliably maintained.
Of course, it is also possible to make it easy to insert the belt main body R into the belt locking hole 22 and to make it difficult for the belt main body R once pulled into the belt locking hole 22 to come off. For example, FIG. As shown in the figure, a belt locking opening 22a is formed at the longitudinal end (axial end) of the belt locking hole 22 having a long hole shape, and a projecting stopper for narrowing the belt passage opening there. 22b can be formed.
In this case, since the belt locking opening 22a is formed at the longitudinal end of the belt locking hole 22, when the belt main body R is inserted into the belt locking hole 22, the belt main body R can be accommodated simply by being inserted straight. In addition, the presence of the stopper 22b can effectively prevent the belt main body R housed therein from naturally falling out of the belt locking hole 22.
In the above-described basic embodiment, the belt locking hole 22 (belt locking opening 22a) is basically formed at only one location in one erroneous operation prevention main body 2, but, for example, FIG. As shown in c), it is also possible to form two belt locking holes 22.

In the above-described basic embodiment, the pusher insertion hole 23 is also used as the tongue insertion hole 21, but is not necessarily limited to this. For example, as shown in FIG. The pusher insertion hole 23 is a dedicated hole (a dedicated hole for inserting the release button pusher 3), and can be formed as a hole smaller than the tongue insertion hole 21.
Of course, the belt locking hole 22 does not necessarily need to be used also as the tongue insertion hole 21 and can be formed as a dedicated hole.
Further, in the above-described basic embodiment, a plurality of tongue insertion holes 21 are provided from the concept of such a dual use hole. In particular, in FIG. 1, three tongue insertion holes 21 are provided in parallel. However, in practice, the type of vehicle used by the user is usually determined to be one, and there is a shared hole (tongue insertion hole 21) that is not used. In such a case, for example, as shown in FIG. 6B, it is preferable to insert the dummy plug 26 into the unused tongue insertion hole 21 so that the user can use the necessary tongue insertion hole 21 (belt engagement hole). 22) and the pusher insertion hole 23 become clear, so that the seat belt SB can be more easily worn.

In the above-described basic embodiment, the release button U2 is positioned above the buckle main body U1, and as the release operation, the release button U2 is pressed downward from above. However, as the buckle U, for example, as shown in FIG. 7, there is a buckle in which the release button U2 is located on the front side of the buckle U. The release operation in this case is an operation of pushing the release button U2 from the front side of the buckle U.
In such a form, as the erroneous operation prevention main body 2, for example, as shown in FIG. 7, a front closing plate 25 for closing the front side of the buckle U is provided for a flat member for closing the upper part of the buckle U. . Of course, the pusher insertion hole 23 at this time is formed in the front closing plate 25.
In this case, the erroneous operation prevention body 2 has an L-shaped cross section as shown in the figure, but when not in use, the belt locking hole 22 formed in the upper flat member (in the case of dual use, the belt locking opening 22a is used). It is preferable to lock the belt body R by using a tongue insertion hole 21) having a tongue. Also, in this case, if the erroneous operation prevention main body 2 is slightly rattled with the tongue plate T fitted in the buckle U, a wall-shaped barb 24 can be provided on the peripheral edge of the front closing plate 25. is there.

DESCRIPTION OF SYMBOLS 1 Seat belt incorrect operation prevention device 2 Error operation prevention main body 3 Release button pushing device

2 Erroneous Operation Prevention Body 21 Tongue Insertion Hole 22 Belt Lock Hole 22a Belt Lock Opening 22b Retainer 23 Push Tool Insertion Hole 24 Return 25 Front Closure Plate 26 Dummy Plug

3 Release button pusher 31 Push tip 32 Mounted part (clip part)

SB Seat belt S Seat M Occupant R Belt body T Tongue plate U Buckle U1 Buckle body U2 Release button U3 Tongue receiving hole F Buckle fixing rod

Claims (5)

The tongue plate attached to the belt body is inserted into the buckle attached to the vehicle body side, which is provided on the buckle of the seat belt that restrains the occupant's body to the seat, and the buckle release button is accidentally pressed. It is a seat belt erroneous operation prevention device that has no
The device for preventing erroneous operation of the seat belt covers the release button of the buckle, and a flat erroneous operation prevention body that blocks the pushing operation of the release button, and the release button is pushed through the erroneous operation prevention body to release the restraint by the seat belt. Release button pusher to perform
Further, the erroneous operation prevention main body has a tongue insertion hole through which the tip of the tongue plate is inserted, a belt locking hole having a belt locking opening communicating with the outside of the erroneous operation prevention main body, and a release button pusher. And a pusher insertion hole are formed,
A seat belt erroneous operation preventing device characterized in that when the erroneous operation preventing body is not used, the belt main body is housed in the belt locking hole through the belt locking opening, and the erroneous operation preventing body is locked to the seat belt.

The erroneous operation prevention body has a plurality of tongue insertion holes, at least one of which is also used as a pusher insertion hole, and at least one of the plurality of tongue insertion holes is also used as a belt locking hole. The device for preventing incorrect operation of a seat belt according to claim 1, wherein:

The device for preventing incorrect operation of a seat belt according to claim 1 or 2, wherein the release button pusher is provided with an attached portion for attaching to a belt body of the seat belt when not in use.

4. The flat erroneous operation prevention main body is provided with a hanging barb at a peripheral edge, and the barb is configured to surround the upper side of the buckle by the barb. 2. The device for preventing incorrect operation of a seat belt according to claim 1.

  The device according to any one of claims 1, 3, and 4, wherein the flat erroneous operation prevention main body is provided with a front closing plate that closes a front side of the buckle.

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