JP2004162213A - Chin strap and helmet having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chin strap enabling the length of the chin strap to be easily adjusted, and capable of providing an excellently safe helmet; and to provide the helmet having the chin strap. <P>SOLUTION: The chin strap 1 has a chin strap body 2, the first attaching member 3 installed in one terminal side of the chin strap body 2, and the second attaching member 4 installed in the other terminal side of the chin strap 2 as shown in the figure. A belt-shaped hooked part 5 having several ratchet teeth 51 parallelly installed along the longitudinal direction of the chin strap body 2, and a hooking part 6 having a hook part 611 engaging with the ratchet tooth 51 are installed in the one terminal side of the chin strap body 2. The hooking part 6 is positioned at the one terminal side in the longitudinal direction of the ratchet teeth 51 when the chin strap body 2 installed so as to be parallel to the hooked part 5 is fully extended. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a chin strap and a helmet provided with the same.
[0002]
[Prior art]
As shown in FIG. 7, for example, a conventional helmet chin strap is configured to connect both chin straps with a fastening tool such as a one-touch hook when the chin strap is attached. Adjustment of the length, such as the degree of tightening of the chin string, has been performed by sequentially moving the chin string passed through the buckle.
[0003]
However, the conventional adjustment of the length of the chin strap using the buckle has a problem that it takes time and effort and is inconvenient.
[0004]
[Patent Document 1]
JP-A-11-244007
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to provide a chin strap capable of easily adjusting the length of the chin strap and providing an excellent safety helmet, and a helmet including the same.
[0006]
[Means for Solving the Problems]
Such an object is achieved by the following (1) to (9) of the present invention.
(1) A flexible chin string body, a first attachment member provided on one end side of the chin string body, and a second attachment member provided on the other end side of the chin string body. A jaw cord having one end side of the jaw string, a belt-shaped hook-and-loop portion having a plurality of ratchet teeth along the longitudinal direction and juxtaposed with the jaw string, and engaging with the ratchet teeth. A hook portion having a claw portion is provided, and the hook portion is located at one end side in the longitudinal direction of the ratchet teeth when the chin string body juxtaposed with the hooked portion is fully extended. Chinstring featured.
(2) The jaw cord according to (1), wherein the hanging portion has a claw portion that engages with the ratchet teeth, and an engagement release portion that can release the engagement of the claw portion.
(3) The chin string according to (1) or (2), wherein the ratchet teeth do not move with respect to the claw portion when tension is applied in a direction in which the chin string body extends.
(4) The chin string according to any one of (1) to (3), wherein the second attachment member is detachable from the chin string.
(5) The chin string according to any one of (1) to (4), wherein the chin string and the second mounting member are joined via a male-female fitting connector.
(6) The chin string according to any one of (1) to (5), wherein both end parts of the head belt are provided at both end parts of the chin string main body.
(7) The chin string according to any one of (1) to (6), wherein the length of the chin string main body can be adjusted by an engagement position between the hanging section and the hooked section.
(8) The length of the chin string does not further increase due to the chin string main body part juxtaposed with the ratchet teeth even when the engagement between the hanging part and the hooked part is released. ) The chin string according to any one of (7) to (7).
(9) A helmet provided with the chin string according to any one of (1) to (8).
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a chin strap of the present invention will be described in detail based on a preferred embodiment shown in the accompanying drawings.
FIG. 1 is a plan view showing an example of the chin string of the present invention. As shown in FIG. 1, the chin string 1 of the present invention is provided on a chin string body 2, a first attachment member 3 provided on one end side of the chin string body 2, and provided on the other end side of the chin string body 2. And a second mounting member 4 provided.
On one end side of the chin string main body 2, a band-shaped hook-and-loop portion 5 having a plurality of ratchet teeth 51 along the longitudinal direction in parallel with the chin string main body 2, and a claw portion 611 engaging with the ratchet teeth 51. Is provided.
The hanging portion 6 is located at one end in the longitudinal direction of the ratchet teeth 51 when the chin string main body 2 juxtaposed with the hanging portion 5 is fully extended.
[0008]
Hereinafter, each of these elements will be sequentially described.
The chin string main body 2 is formed of, for example, a band-shaped material that can be freely bent. Examples of the material include a cloth, a molded body of a resin material, and a composite thereof. A first attachment portion 3 is provided at one end of the chin string main body 2. The first attachment member 3 is a metal fitting, and has an insertion portion 31 into which the chin string main body 2 is inserted, and a through hole 32 provided in the upper central portion.
One end of the chin string main body 2 is inserted into the insertion portion 31.
One end of the chin string main body 2 inserted into the insertion portion 31 is fixed by a pad (cushion) portion 8.
The through hole 32 of the first attachment member 3 is inserted into a protrusion (not shown) provided on the helmet. This allows the chin strap to be fixed to the helmet.
[0009]
The pad (cushion) portion 8 is band-shaped, and has a bag-shaped portion 81 on the upper end side. The pad portion 8 is formed of a flexible material on the inner surface side.
The chin string main body 2 is inserted into the bag-shaped portion 81.
A male hook-and-loop fastener 82 for fixing the head belt 11 is provided on the lower end side of the pad portion 8.
[0010]
In the vicinity of the first attachment member 3 of the chin string main body 2, a hooked portion 5 is provided.
One end of the hooked portion 5 is fixed to the chin string main body 2 by a fixing member 52.
The hanging portion 5 has a plurality of ratchet teeth 51 in the longitudinal direction in parallel with the chin string main body 2.
The ratchet teeth 51 are mountain-shaped in cross section, one side being vertical and the other side being oblique. Thereby, the ratchet teeth 51 can be locked by the claw portions 611.
[0011]
The ratchet teeth 51 are provided with a plurality of ratchet teeth at equal intervals in the longitudinal direction of the hooked portion 5.
Further, the plurality of ratchet teeth 51 are provided at a central portion in the width direction of the hooked portion 5, and the portion has a convex shape.
The ratchet teeth 51 are configured to allow the hanging portion 6 to move in the direction of tightening the chin string main body 2, but to prevent the hanging portion 6 from moving in the direction of loosening. Thereby, the helmet using the chin strap of the present invention can be easily mounted and the stability after mounting can be improved.
[0012]
The hanging portion 6 is located at one end of the ratchet teeth 51 in the longitudinal direction when the chin string body 2 juxtaposed with the hooked portion 5 is fully extended.
FIG. 2 is a plan view (a) and a front view (b) of the hanging portion 6.
The hanging portion 6 has a tongue piece 61 having a claw portion 611, an engagement releasing portion 62 capable of releasing the engagement of the ratchet teeth 51, and a guide hole 63 for guiding the ratchet teeth 51.
The tongue piece 61 has elasticity, and is supported by the cantilever from the base end side of the upper surface of the hanging portion 6.
The tongue piece 61 has a claw portion 611 on its inner surface side (below the hooking portion 6 in the figure) and an inclined portion 612 that comes into contact with the engagement release portion 62.
As for the cross section of the claw part 611, one is a vertical surface and the other is an oblique surface. The directions of the vertical surface and the oblique surface are opposite to the directions of the vertical surface and the oblique surface of the ratchet tooth 51 described above.
The inclined surface of the inclined portion 612 extends outward from the central portion (upper side of the hook portion 6 in the figure).
[0013]
The engagement release portions 62 are provided on both lateral sides of the hook-and-stop portion 5.
The engagement release portion 62 has elasticity, and is supported by a cantilever from the base end side of the side surface of the hanging portion 6.
The engagement releasing portion 62 has a knob 621 and a pressing portion 622 for releasing the engagement between the pawl portion 611 and the ratchet tooth 51 on the distal end side.
[0014]
The claw portion 611 and the engagement release portion 62 both have elasticity and are elastically deformed.
When the knob 621 of the disengagement portion 62 is pressed (the direction A in FIG. 4), the pressing portion 622 comes into contact with the inclined portion 612.
When the knob 621 is pressed, the pawl portion 611 is lifted by the sliding between the pressing portion 622 and the inclined portion 612, and the engagement between the ratchet tooth 51 and the pawl portion 611 is released.
When the knob 621 is released, the claw portion 611 and the engagement release portion 62 return to their original positions by elastic deformation, and the claw portion 611 and the ratchet teeth 51 are engaged.
[0015]
The relationship between the hanging portion 6, the hooked portion 5, and the chin string main body 2 will be described with reference to FIGS.
FIG. 3 shows a state in which the hook string portion 2 and the hooked hook portion 5 are tightening the chin string main body 2.
As the hanging portion 6 advances the ratchet teeth 51, the chin string body 2 becomes loose.
The hook portion 6 advances in the direction of tightening the chin string main body 2 but does not advance in the loosening direction due to the engagement between the ratchet teeth 51 and the claw portion 611.
[0016]
FIG. 4 shows a state where the chin string main body 2 is fully extended. When the chin string main body 2 is fully extended as shown in FIG. 4, the hanging portion 6 is located at one end side of the ratchet teeth 51 in the longitudinal direction.
Therefore, since the chin string main body 2 does not extend any more, the engagement between the hooking portion 6 and the hooked portion 5 does not come off. In addition, even if the hooked portion 6 is disengaged from the hooked portion 6 due to the hooked portion 5 being bent, the chin string is not further extended by the chin string body 2. Things. Since the length of the chin strap does not extend any more, the chin strap does not come off from the chin, and the helmet does not come off, thus ensuring safety.
[0017]
The second attachment member 4 is provided on the other end side (the opposite side of the first attachment member 3) of the chin string main body 2 as shown in FIG. The second mounting member 4 is a metal fitting, and has an insertion portion 41 into which the chin string main body 2 is inserted, and a through hole 42 provided in the upper central portion.
One end of the chin string main body 2 is inserted into the insertion portion 41.
One end of the chin string main body 2 inserted into the insertion portion 41 is fixed by the pad portion 9.
The through hole 42 of the second mounting member 4 is inserted into a projection (not shown) provided on the helmet. This allows the chin strap to be fixed to the helmet.
[0018]
The pad (cushion) portion 9 is band-shaped, and has a bag-shaped portion 91 on the upper end side. The pad 9 has an inner surface formed of a flexible material.
The chin string main body 2 is inserted into the bag-shaped portion 91.
A male hook-and-loop fastener 92 for fixing the head belt 11 is provided at a lower end side of the pad portion 9.
[0019]
As shown in FIG. 1, a male-female fitting connector 7 is provided on the other end side (the second mounting member 4 side) of the chin string main body 2 and can be separated and joined.
As shown in FIG. 5, the male-female mating connector 7 includes a female member 71 provided on the second mounting member 4 side and a male member 72 provided on the first mounting member 3 side.
On one end side of the female member 71 (on the side of the second attachment member 4), a chin string insertion portion 711 into which the chin string main body 2 can be inserted is formed.
A chin string is inserted into the chin string insertion portion 711 and locked.
A space 712 into which the male member 72 can be inserted is formed on the other end of the female member 71.
At the center of the female member 71, a concave portion 713 that can be fitted with the convex portion 721 of the male member 72 is formed.
[0020]
The male member 72 has a locking portion 722 that locks the chin string and a convex portion 721 that is inserted into the space 712 of the female member 71.
The locking portion 722 has side frames 723 formed on both side surfaces, a guide hole for guiding a chin string, and a locking portion 724 provided between the side frames.
The chin string main body 2 is wound around the locking part 722 so as to be folded back on the locking part 724 so that the length of the chin string main body 2 can be adjusted.
The other end side of the male member 72 is formed with a convex portion 721 and is inserted into the space 712 of the female member 71.
One end of the projection 721 fits into the recess 713 of the female member 71.
The convex portion 721 has elasticity, and the fitting is released when the distal end portion is pressed.
[0021]
As shown in FIG. 1, a chin rest 10 is provided at the center of the chin string main body 2.
The chin rest 10 is shaped to fit the tip of the chin, and its position is adjustable.
The chin rest 10 has two through holes 101 and 102. The chin string main body 2 is inserted into the through hole 101 from the inner side of the chin rest 10 (the side that contacts the chin).
The chin string main body 2 is provided along the outer surface of the chin rest 10 and is inserted into the through hole 102.
The inner surface of the chin rest 10 is concave (not shown), so that the chin string main body 2 is easily fixed.
[0022]
As shown in FIG. 6, the head belt 11 is formed of a band-shaped material that can be freely bent. The material of the head belt 11 may be different from that of the chin string main body 2, but is preferably the same.
At both ends of the head belt 11, female hook-and-loop fasteners 111 for fixing the head belt 11 to the chin string main body 2 are provided.
At the center of the head belt 11, an attachment member 112 for attachment to a helmet is provided.
[0023]
A helmet according to the present invention is a helmet provided with the above-described chin string.
The chin strap 1 is fixed to the helmet by the attachment members provided on the chin strap 1 and the head belt 11.
[0024]
Next, the operation of the chin strap of the present invention will be described.
When a helmet using the chin strap 1 of the present invention is mounted on the head, the following is performed.
The first attachment member 3, the second attachment member 4, and the attachment portion 112 of the head belt 11 are attached inside the helmet, and the chin strap 1 is fixed to the helmet.
Next, the ratchet teeth 51 of the hooked portion 5 are slightly inserted into the hooking portion 6 in the state of FIG.
Then, the male and female mating connectors 7 are separated, and the helmet to which the chin string main body 2 is fixed is mounted on the head.
The chin string main body 2 is attached to the periphery of the chin, the chin rest 10 is brought into contact with the chin, and the male and female mating connectors 7 are joined.
Next, the length of the string main body 2 is adjusted to some extent by the locking portion 722 of the male member 72.
[0025]
Then, the hooked fastening portion 5 is inserted to the length around the chin portion, and the chin string is fixed. Thereby, the length of the chin strap can be easily adjusted.
[0026]
At this time, the claw portion 611 of the hook portion 6 engages with the ratchet teeth 51 of the hook portion 5, and the hook portion 5 moves in the direction of tightening the chin string main body 2, but moves in the loosening direction. Does not move.
When the chin string body 2 is fully extended, the hanging portion 6 is located on one end side of the ratchet teeth 51 in the longitudinal direction.
Therefore, since the chin string main body 2 does not extend any more, the engagement between the hooking portion 6 and the hooked portion 5 does not come off. In addition, even if the hooked portion 6 is disengaged from the hooked portion 6 due to the hooked portion 5 being bent, the chin string is not further extended by the chin string body 2. Things. Since the length of the chin strap does not extend any more, the chin strap does not come off from the chin, and the helmet does not come off, thus ensuring safety.
[0027]
That is, the chin strap main body 2 of the present invention comprises the male and female mating connector 7, which tightens the length around the chin and the length of the chin strap main body to the same extent. , The length of the chin string main body 2 can be further shortened and tightened.
Thereby, the stability when the helmet is attached is excellent, and as a result, the safety can be improved.
[0028]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the adjustment of the length of a chin string is easy, and the chin string which can provide the helmet excellent in safety | security and a helmet provided with the same can be provided.
Further, by making the second attachment member detachable, it is possible to provide a chin string excellent in wearability and a helmet provided with the same.
Further, even when the engagement between the hanging portion and the hooked portion is released, if the length of the chin string is not further extended by the chin string body portion juxtaposed with the ratchet teeth, the Even if the hooking part is disengaged from the hooked part due to bending of the hooking part, the chin string does not extend any more due to the chin string main body, so that the chin string does not come off the chin. Can be
[Brief description of the drawings]
FIG. 1 is a plan view showing an example of a chin string according to the present invention.
FIGS. 2A and 2B are diagrams showing an example of a hanging portion according to the present invention, wherein FIG. 2A is a plan view and FIG. 2B is a front view.
FIG. 3 is a side view showing a state in which the lace of the chin is tightened by the hanging part and the hanging part in the chin string of the present invention.
FIG. 4 is a side view showing a state in which the main body of the chin string is fully extended between the hanging part and the hanging part in the chin string of the present invention.
FIG. 5 is a view showing an example of a male-female mating connector according to the present invention, wherein (a) is a plan view of a male-female mating connector, (b) is a plan view of a male member, and (c). FIG. 4 is a plan view of a female member.
FIG. 6 is a plan view showing an example of a head belt according to the present invention.
FIG. 7 is a perspective view showing an example of a conventional chin string.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 chin string 2 chin string main body 3 first attachment member 31 insertion portion 32 through hole 4 second attachment member 41 insertion portion 42 through hole 5 hooked portion 51 ratchet tooth 52 fixing member 6 hooking portion 61 tongue piece 611 Claw portion 612 Inclined portion 62 Disengagement portion 621 Knob 622 Pressing portion 63 Guide hole 7 Male-female mating connector 71 Female member 711 Chin string insertion portion 712 Space portion 713 Concave portion 72 Male member 721 Convex portion 722 Locking portion 723 Side frame 724 Locking portion 8 Pad portion 81 Bag-shaped portion 82 Male hook-and-loop fastener 9 Pat portion 91 Bag-shaped portion 92 Male hook-and-loop fastener 10 Chin pad 101 Through hole 102 Through hole 11 Head belt 111 Female face Fastener 112 mounting member

Claims (9)

A chin string including a flexible chin body, a first attachment member provided on one end side of the chin string body, and a second attachment member provided on the other end side of the chin string body And
On one end side of the chin strap, a band-shaped hooked fastening part having a plurality of ratchet teeth along the longitudinal direction in parallel with the chin strap, and a hooking fastening part having a claw engaging with the ratchet teeth Is provided,
The jaw cord is characterized in that the hanging part is located at one end in the longitudinal direction of the ratchet teeth when a main body of the chin string juxtaposed with the hanging part is fully extended. The jaw cord according to claim 1, wherein the hanging portion has a claw portion that engages with the ratchet teeth, and an engagement release portion that can release the engagement of the claw portion. The chin string according to claim 1 or 2, wherein the ratchet teeth do not move with respect to the claw portion when tension is applied in a direction in which the chin string body extends. The chin string according to any one of claims 1 to 3, wherein the second attachment member is detachable from the chin string. The chin string according to any one of claims 1 to 4, wherein the chin string and the second mounting member are joined via a male-female fitting connector. The chin string according to any one of claims 1 to 5, wherein both end parts of the head belt are provided at both end parts of the chin string body. The chin string according to any one of claims 1 to 6, wherein a length of the chin string main body can be adjusted by an engagement position between the hanging part and the hooked part. The length of the chin string is not further extended by the chin string main body part juxtaposed to the ratchet teeth even when the engagement between the hanging part and the hooked part is released. The chin strap described in either. A helmet provided with the chin strap according to any one of claims 1 to 8.

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