JP4027782B2 - Chin string and helmet equipped with it - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chin string and a helmet including the same.
[0002]
[Prior art]
For example, as shown in FIG. 7, the conventional chin strap of a helmet is configured such that both chin straps are connected by a fastening device such as a one-touch hook when the chin strap is mounted. And length adjustments, such as a tightening condition of a chin string, were performed by moving the chin string which passed through the buckle in order.
[0003]
However, adjusting the length of the chin strap with the conventional buckle has a problem that it is inconvenient because it takes time and effort.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-244007
[Problems to be solved by the invention]
An object of the present invention is to provide a chin strap that can easily adjust the length of the chin strap and can provide a safe helmet, and a helmet including the same.
[0006]
[Means for Solving the Problems]
Such an object is achieved by the present inventions (1) to (9) below.
(1) A chin string body having flexibility, 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 belt-like hooked portion having a plurality of ratchet teeth along the longitudinal direction and being engaged with the ratchet teeth on one end side of the jaw cord; A hooking portion having a claw portion, and the hooking portion is located on one end side in the longitudinal direction of the ratchet teeth when the jaw string main body arranged in parallel with the hooked portion is extended. Characteristic chin string.
(2) The chin string according to (1), wherein the hooking portion includes 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 relative 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 jaw string according to any one of (1) to (4), wherein the jaw string and the second attachment member are joined via a male-female fitting connector.
(6) The chin string according to any one of (1) to (5), wherein both end portions of the head belt are installed at both end portions of the chin strap body.
(7) The chin cord according to any one of (1) to (6), wherein the length of the chin cord main body can be adjusted by an engagement position between the hanging portion and the hanging portion.
(8) Even when the engagement between the hooking portion and the hooking portion is released, the length of the jaw cord is not further extended by the jaw cord main body portion arranged in parallel with the ratchet teeth. ) The chin string according to any one of (7) to (7).
(9) A helmet provided with the chin strap according to any one of (1) to (8).
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the chin string of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
FIG. 1 is a plan view showing an example of a chin cord of the present invention. As shown in FIG. 1, the chin string 1 of the present invention is provided on the chin string body 2, the first attachment member 3 provided on one end side of the chin string body 2, and the other end side of the chin string body 2. The second mounting member 4 is provided.
On one end side of the chin string body 2, a belt-shaped hooked part 5 having a plurality of ratchet teeth 51 along the longitudinal direction in parallel with the chin string body 2, and a claw part 611 that engages with the ratchet teeth 51. And a latching portion 6 having.
The hanging portion 6 is located on one end side in the longitudinal direction of the ratchet teeth 51 when the chin string body 2 provided side by side with the hanging portion 5 is fully extended.
[0008]
Hereinafter, each of these elements will be described sequentially.
The chin string body 2 is formed of, for example, a belt-like 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 body 2. The 1st attachment member 3 is a metal fitting, and the penetration part 32 is provided in the insertion part 31 which inserts the chin string main body 2, and the upper center part.
One end of the chin string body 2 is inserted into the insertion portion 31.
One end of the chin string 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. Thereby, a chin string can be fixed to a helmet.
[0009]
The pad (cushion) portion 8 has a band shape and has a bag-like portion 81 on the upper end side. The inner surface side of the pad portion 8 is formed of a flexible material.
The chin string 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 body 2, a hooked portion 5 is provided.
One end of the hooking / fastening portion 5 is fixed to the chin string body 2 by a fixing member 52.
The hooking / fastening portion 5 is provided side by side with the chin string body 2 and has a plurality of ratchet teeth 51 in the longitudinal direction.
The ratchet teeth 51 are mountain-shaped in cross section, and one side is vertical and the other side is slanted. Thereby, the ratchet teeth 51 can be locked by the claw portion 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.
In addition, the plurality of ratchet teeth 51 are provided in the center portion in the width direction of the hooked portion 5, and the portions are convex.
The ratchet teeth 51 are configured to allow the hooking portion 6 to move in the direction of tightening the chin string body 2 but prevent it in the direction of relaxation. Thereby, the ease of mounting | wearing of the helmet using the chin string of this invention, and the stability after mounting | wearing can be improved.
[0012]
The hooking portion 6 is located on one end side in the longitudinal direction of the ratchet teeth 51 when the chin string body 2 provided side by side 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 hooking portion 6 includes a tongue piece 61 having a claw portion 611, an engagement release portion 62 that can release the engagement of the ratchet teeth 51, and a guide hole 63 that guides the ratchet teeth 51.
The tongue piece 61 has elasticity, and is supported in a cantilevered manner from the base end side of the upper surface of the hanging portion 6.
The tongue piece 61 has a claw portion 611 and an inclined portion 612 that comes into contact with the disengagement portion 62 on the inner surface side (below the hanging portion 6 in the drawing).
As for the cross section of the claw portion 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 those of the ratchet teeth 51 described above.
The inclined surface of the inclined portion 612 extends from the central portion toward the outside (upper side of the hanging portion 6 in the figure).
[0013]
The disengagement part 62 is provided on both lateral sides of the hooked part 5.
The disengagement part 62 has elasticity and is cantilevered from the base end side of the side surface of the hooking part 6.
The disengagement part 62 has a pressing part 622 for releasing the engagement between the knob 621 and the claw part 611 and the ratchet teeth 51 on the tip side.
[0014]
Both the claw portion 611 and the engagement release portion 62 have elasticity and are elastically deformed.
When the knob 621 of the disengaging part 62 is pressed (A direction in FIG. 4), the pressing part 622 comes into contact with the inclined part 612.
When the knob 621 is pressed, the claw portion 611 is lifted by sliding between the pressing portion 622 and the inclined portion 612, and the engagement between the ratchet teeth 51 and the claw portion 611 is released.
When the knob 621 is released, the claw portion 611 and the disengagement portion 62 return to their original state due to elastic deformation, and the claw portion 611 and the ratchet teeth 51 are engaged.
[0015]
The relationship between the hanging part 6, the hooked part 5, and the chin string body 2 will be described with reference to FIGS.
FIG. 3 shows a state where the cord string body 2 is fastened by the hanging portion 6 and the hanging portion 5.
When the hooking portion 6 advances the ratchet teeth 51, the chin string body 2 comes loose.
The latching portion 6 advances in the direction of tightening the chin string body 2 by the engagement of the ratchet teeth 51 and the claw portion 611, but does not advance in the loosening direction.
[0016]
FIG. 4 shows a state in which the chin string body 2 is fully extended. As shown in FIG. 4, when the chin string body 2 is fully extended, the hanging portion 6 is located on one end side in the longitudinal direction of the ratchet teeth 51.
Therefore, since the chin string body 2 does not extend any more, the engagement between the hooking portion 6 and the hooked portion 5 cannot be released. Further, even if the hooked portion 5 is bent and the hooked portion 6 and the hooked portion 5 are disengaged, the jaw cord body 2 does not extend the jaw cord any more. Is. Thereby, since the length of a chin string does not extend any more, the chin string does not come off from the chin, so that the helmet is not detached and safety is ensured.
[0017]
The 2nd attachment member 4 is provided in the other end side (opposite side of the 1st attachment member 3) of the chin string main body 2 as shown in FIG. The 2nd attachment member 4 is a metal fitting, and the penetration part 42 is provided in the insertion part 41 which inserts the chin string main body 2, and an upper center part.
One end of the chin string body 2 is inserted into the insertion portion 41.
One end of the chin string body 2 inserted into the insertion portion 41 is fixed by the pad portion 9.
The through hole 42 of the second attachment member 4 is inserted into a protrusion (not shown) provided on the helmet. Thereby, a chin string can be fixed to a helmet.
[0018]
The pad (cushion) portion 9 has a band shape and has a bag-shaped portion 91 on the upper end side. The inner surface side of the pad portion 9 is formed of a flexible material.
The chin string 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 on the 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 (second attachment member 4 side) of the chin string body 2 and can be separated and joined.
As shown in FIG. 5, the male / female fitting connector 7 includes a female member 71 provided on the second attachment member 4 side and a male member 72 provided on the first attachment member 3 side.
A jaw string insertion portion 711 into which the jaw string body 2 can be inserted is formed on one end side (second attachment member 4 side) of the female member 71.
A chin string is inserted into the chin string insertion portion 711 and locked.
Further, a space 712 into which the male member 72 can be inserted is formed on the other end side of the female member 71.
At the center of the female member 71, a recess 713 that can be fitted to the protrusion 721 of the male member 72 is formed.
[0020]
The male member 72 includes a locking portion 722 that locks the chin string and a convex portion 721 that is inserted into the space portion 712 of the female member 71.
The locking portion 722 includes a side frame 723 formed on both side surfaces, a guide hole for guiding the chin string, and a locking portion 724 provided between the side frames.
The chin string body 2 is wound around the locking part 722 so as to be folded back to the locking part 724 so that the length of the chin string body 2 can be adjusted.
A convex portion 721 is formed on the other end side of the male member 72 and is inserted into the space portion 712 of the female member 71.
One end of the convex portion 721 is fitted with the concave portion 713 of the female member 71.
The convex part 721 has elasticity, and when the tip part is pushed, the fitting is released.
[0021]
As shown in FIG. 1, a chin rest 10 is provided at the center of the chin string body 2.
The jaw pad 10 has a shape that fits the tip of the jaw, and its position can be adjusted.
The jaw pad 10 has two through holes 101 and 102. The chin string body 2 is inserted into the through hole 101 from the inner surface side of the chin rest 10 (side contacting the chin).
The chin string body 2 is provided along the outer surface of the chin rest 10 and is inserted into the through hole 102.
The chin rest 10 has a concave inner surface (not shown), and the chin string 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 body 2, but is preferably the same.
Female hook-and-loop fasteners 111 for fixing the head belt 11 to the chin strap body 2 are provided at both ends of the head belt 11.
An attachment member 112 for attaching to the helmet is provided at the center of the head belt 11.
[0023]
The helmet of this invention is a helmet provided with the above-mentioned chin string.
The chin string 1 is fixed to the helmet by attachment members provided on the chin string 1 and the head belt 11.
[0024]
Next, the operation of the chin cord of the present invention will be described.
When the helmet using the chin string 1 of the present invention is attached to 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 to the inside of the helmet to fix the chin string 1 to the helmet.
Next, the ratchet teeth 51 of the hooked portion 5 are slightly inserted into the hooking portion 6 in the state shown in FIG.
Then, the male / female fitting connector 7 is separated, and the helmet with the chin string body 2 fixed thereto is attached to the head.
The chin string body 2 is attached to the chin periphery, the chin rest 10 is brought into contact with the chin, and the male and female fitting connectors 7 are joined.
Next, the length of the cord main body 2 is adjusted to some extent at the locking portion 722 of the male member 72.
[0025]
Then, the hooked portion 5 is inserted to the length around the chin portion, and the chin string is fixed. Thereby, the length of a chin string can be adjusted easily.
[0026]
At this time, the claw portion 611 of the latching portion 6 and the ratchet teeth 51 of the latching portion 5 are engaged, and the latching portion 5 moves in the direction of tightening the chin string body 2, but in the direction of relaxation. Does not move.
Further, when the chin string body 2 is fully extended, the hooking portion 6 is located on one end side in the longitudinal direction of the ratchet teeth 51.
Accordingly, since the chin string body 2 does not extend any more, the engagement between the hooking portion 6 and the hooked portion 5 is not released. Further, even if the hooked portion 5 is bent and the hooked portion 6 and the hooked portion 5 are disengaged, the jaw cord body 2 does not extend the jaw cord any more. Is. Thereby, since the length of a chin string does not extend any more, the chin string does not come off from the chin, so that the helmet is not detached and safety is ensured.
[0027]
In other words, the chin cord body 2 of the present invention includes a male and female mating connector 7, after the length of the chin portion and the length of the chin cord body are tightened to the same extent, By the engagement, the length of the chin string body 2 can be further shortened and tightened.
Thereby, it is excellent in stability at the time of helmet wearing, and as a result, safety can be improved.
[0028]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the chin string which can adjust the length of a chin string and 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 equipped therewith.
In addition, even when the engagement between the latching portion and the latching portion is disengaged, if the jaw cord main body portion arranged side by side with the ratchet teeth is used as a jaw cord whose length does not extend any further, Even if the hook part is bent and the hook part is disengaged from the hook part, the chin string does not extend any further and 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 in the present invention.
FIGS. 2A and 2B are diagrams showing an example of a hanging portion according to the present invention, where FIG. 2A is a plan view and FIG. 2B is a front view;
FIG. 3 is a side view showing a state in which a chin string body is tightened between a hanging part and a hooked part in the chin string of the present invention.
FIG. 4 is a side view showing a state where the chin string body is fully extended between the hanging portion and the hooked portion in the chin string of the present invention.
FIG. 5 is a view showing an example of a male / female mating connector in the present invention, (a) is a plan view of the male / female mating connector, (b) is a plan view of a male member, and (c) FIG. 3 is a plan view of a female member.
FIG. 6 is a plan view showing an example of a head belt in the present invention.
FIG. 7 is a perspective view showing an example of a conventional chin string.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Jaw cord 2 Jaw string main body 3 1st attachment member 31 Insertion part 32 Through-hole 4 2nd attachment member 41 Insertion part 42 Through-hole 5 Covering part 51 Ratchet tooth 52 Fixing member 6 Hanging part 61 Tongue piece 611 Claw part 612 Inclined part 62 Disengagement part 621 Knob 622 Pressing part 63 Guide hole 7 Male / female fitting connector 71 Female member 711 Jaw string insertion part 712 Space part 713 Concave part 72 Male member 721 Convex part 722 Locking part 723 Side frame 724 Locking portion 8 Pad portion 81 Bag-shaped portion 82 Male surface fastener 9 Pad portion 91 Bag-shaped portion 92 Male surface fastener 10 Jaw rest 101 Through hole 102 Through hole 11 Head belt 111 Female surface Fastener 112 mounting member

Claims (9)

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

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