JP2020158907A - Helmet - Google Patents

Abstract

To provide a helmet equipped with a lock device that can firmly fix a movable part to a main body and can easily release the fixing.SOLUTION: A helmet includes a main body 3 constituting a shell 1 covering a wearer's head; a movable part 2 supported by the main body 3 and movable with respect to the main body 3; and a lock device 7 that locks the movable part 2 so that it can be released at a predetermined position. The lock device 7 includes: an engagement member 9 that engages with an engaged portion of the movable part 2 to be in a fixed state; and a disengagement member 10 that disengages the engaging member 9 from the movable part 2 in response to an operation. The disengagement member 10 is provided so as to be movable in a vertical direction along an inner surface of the main body 3, and the engagement member 9 engages with an engaged portion 5 from a direction intersecting a moving direction of the disengagement member 10.SELECTED DRAWING: Figure 3

Description

The present invention relates to a helmet.

As a helmet having a main body portion constituting the shell body and a movable movable part, the shell body is conventionally worn with an annular shell member (main body portion) that covers the entire side of the wearer's head when worn. It is sometimes known that it is composed of a dome-shaped shell member (movable part) that covers the upper part of the wearer's head (see Patent Document 1 below).

The dome-shaped shell member is connected to one place on the occipital side of the annular shell member by a hinge. This hinge has a structure capable of rotating and reversing the dome-shaped shell member. As a result, the upper part of the annular shell member can be covered with the dome-shaped shell member so that it can be worn, and the dome-shaped shell member is separated from the annular shell member, inverted, and housed inside the annular shell member. It can be in a folded state.

When the conventional helmet can be worn, the annular shell member and the dome-shaped shell member are formed by inserting an upward protruding pin on the front upper edge of the annular shell member into a hole on the front lower edge of the dome-shaped shell member. Is aligned. Further, the dome-shaped shell member is fixed to the annular shell member by engaging the engaging claw extending from the front end portion of the dome-shaped shell member with the hole-shaped engaged portion of the front end portion of the annular shell member.

The annular shell member and the dome-shaped shell member constituting the shell are formed of a material containing synthetic resin, glass fiber, etc., and the engaging claw integrated with the dome-shaped shell member has elasticity and can be bent. It is formed in the shape of a protrusion. As a result, the engaging claws are elastically fitted into the engaged portion and are in an engaged state. Further, when the wearable state is changed to the folded state, the dome-shaped shell member is pushed upward with respect to the annular shell member, so that the engaging claw bends and separates from the engaged portion, and the dome-shaped shell is separated from the annular shell member. The members separate.

In this way, by adopting a structure in which the engagement claw of the upper half is used to engage the engaged portion of the annular shell member, the engagement and disengagement operations can be facilitated. However, because of its simple structure, it is easy to manufacture.

JP-A-2018-76614

However, according to the engagement between the engaging claw and the engaged portion as in the conventional helmet, the engaging and disengaging operations are easy as described above, but on the other hand, when an impact is received from the outside, the engagement is engaged. There is a risk that the case will be canceled carelessly. Therefore, it is conceivable to maintain the wearable state of the helmet by forming the engaging claws to engage with the engaged portion relatively deeply and firmly. In this case, when the helmet is changed from the wearable state to the folded state, it is considered. There is a disadvantage that the engaging claws cannot be easily disengaged from the engaged portion, which makes it difficult to fold the helmet.

In view of the above points, it is an object of the present invention to provide a helmet provided with a locking device capable of firmly fixing the movable portion to the main body portion and easily releasing the fixing.

In order to achieve such an object, the present invention can release the main body portion constituting the shell body, the movable portion supported by the main body portion and movable with respect to the main body portion, and the movable portion at a predetermined position. In a helmet provided with a locking device to be fixed to, the locking device engages with an engaging member to be fixed by engaging with an engaged portion of the movable portion, and engagement of the engaging member with the movable portion. The disengagement member is provided so as to be movable in the vertical direction along the inner surface of the main body, and the engagement member is the disengagement member. It is characterized in that it engages with the engaged portion from a direction intersecting the moving direction of the above.

According to the present invention, the engagement of the engaging member with the engaged portion can be disengaged by the disengaging member that is separate from the engaging member. As a result, the engaging member can be engaged with the engaged portion relatively large (deeply) as long as it can be disengaged by the disengaging member. Therefore, the movable portion can be firmly fixed to the main body portion, and the fixing can be easily released.

Further, in the present invention, the locking device includes an urging member that urges the engaging member in a direction of engaging with the engaged portion of the movable portion, and the disengaging member is the main body portion. The engaging member is guided in a direction of disengaging the movable portion by moving upward with the pressing operation of the pressing operation portion exposed to the lower end and pressing upward. It is characterized by having a cam portion.

Since the engaging member is urged by the urging member, the engaging portion can be configured to engage with the engaged portion simply by moving the movable portion to a predetermined position with respect to the main body portion. ..

Further, since the cam portion is provided so that the engaging member is guided in the disengaging direction by operating the pressing operation portion of the disengaging member, the movement of the disengaging member is reliably transmitted to the engaging member. .. Since the cam portion moves the engaging member by guiding the engaging member with the movement of the disengaging member, the number of parts constituting the lock device can be relatively reduced and the strength can be improved. .. Moreover, since the cam portion can amplify a small movement, even if the engaging member is deeply engaged with the engaged portion or the operation amount of the pressing operation portion is small, the engaging member is greatly moved. This makes it possible to improve the operability of the pressing operation unit.

Further, in the present invention, the main body is an annular shell member that covers the entire side of the wearer's head when worn, and the movable portion is a dome-shaped shell that covers the upper part of the wearer's head when worn. It is a member, and the dome-shaped shell member is rotatably provided on the annular shell member.

By adopting the lock device for the helmet having this configuration, the dome-shaped shell member, which is a movable portion, can be securely fixed to the annular shell member, which is the main body portion, to form a wearing state.

A side view of a helmet according to an embodiment of the present invention. A side view showing a state in which the dome-shaped shell member of the helmet of the present embodiment is inverted. Explanatory sectional view of the helmet shell of FIG. Explanatory sectional view which shows the 1st lock device.

An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the helmet of the present embodiment is a so-called riding helmet, and includes a shell 1 made of a hard synthetic resin material that can withstand a predetermined impact test.

As shown in FIGS. 1 and 2, the shell body 1 is composed of two members, a dome-shaped shell member 2 and an annular shell member 3. The annular shell member 3 corresponds to the main body portion of the present invention, and the dome-shaped shell member 2 corresponds to the movable portion of the present invention.

The dome-shaped shell member 2 is formed in a shape that covers the upper part of the wearer's head in a dome shape, and the annular shell member 3 is located below the dome-shaped shell member 2 and is located on the entire circumference of the side of the wearer's head. It is formed in a shape that covers. The outer diameter of the lower peripheral edge, which is the maximum outer diameter of the dome-shaped shell member 2, is formed to be slightly smaller than the inner diameter of the upper peripheral edge, which is the minimum outer diameter of the annular shell member 3.

As shown in FIGS. 1 and 2, the dome-shaped shell member 2 is connected to the upper part of the annular shell member 3 via the pivot 4. The pivot 4 is provided on the same axis at positions facing the left and right of the dome-shaped shell member 2. The pivot 4 makes the dome-shaped shell member 2 rotatable around the pivot 4. Then, the dome-shaped shell member 2 can be in an inverted posture with respect to the annular shell member 3 as shown in FIG. 2 by rotating the dome-shaped shell member 2 around the pivot axis 4. In the following description, the state shown in FIG. 1, which is exposed above the annular shell member 3 and can be worn, is referred to as a non-reversing posture, and the annular shell member 3 is inverted by being inverted with respect to the annular shell member 3. The state shown in FIG. 2 housed inside is called an inverted posture. In the present embodiment, the state in which the dome-shaped shell member 2 is in the non-reversed posture corresponds to when worn or in the worn state, and the state in which the dome-shaped shell member 2 is in the inverted posture corresponds to when not worn. To do.

As shown in FIG. 3, a dome-shaped liner 2a for absorbing the impact received by the dome-shaped shell member 2 is provided inside the dome-shaped shell member 2, and an annular shell is provided inside the annular shell member 3. An annular liner 3a is provided to absorb the impact received by the member 3.

Further, a horizontally long hole-shaped front side engaged portion 5 and a horizontally long concave shaped rear side engaged portion 6 are formed at the front side end portion and the rear side end portion of the dome-shaped shell member 2. The annular shell member 3 is provided with a first locking device 7 on the front side and a second locking device 8 on the rear side. The first locking device 7 is a locking device according to the gist of the present invention.

The first lock device 7 will be described in detail. As shown in FIGS. 4A and 4B, the first locking device 7 includes an engaging member 9 and an engaging disengaging member 10.

The engaging member 9 includes an engaging claw 11 projecting inward at the upper end portion and a protrusion 12 projecting from the side surface. The engaging member 9 is supported by the support member 13.

The support member 13 is fixed to the inner surface of the annular shell member 3. A guide groove 14 is formed on the inner wall of the support member 13 to guide the protrusion 12 of the engaging member 9 in the advancing / retreating direction (in the front-rear direction in this embodiment) of the engaging claw 11. The guide groove 14 supports the engaging member 9 in a state in which it cannot move up and down via the protrusion 12 of the engaging member 9.

As shown in FIG. 3, the engaging claw 11 has a shape capable of engaging with both the front engaged portion 5 and the rear engaged portion 6, and the front engaged portion 5 and the rear engaged portion 5 are engaged. A horizontally long protrusion is formed corresponding to the shape of the engaging portion 6. As a result, the engaging claw 11 is less likely to be broken even if it receives an impact or the like, and the engagement with the front side engaged portion 5 and the rear side engaged portion 6 is firmly maintained.

As shown in FIGS. 4A and 4B, the disengagement member 10 is provided at the lower end of the moving plate 15 and the moving plate 15 which is vertically movable between the engaging member 9 and the supporting member 13. It is provided with a rectangular plate-shaped pressing operation unit 16. The moving plate 15 is formed with a cam portion 17 having an inclined edge surface. The protrusion 12 of the engaging member 9 penetrates the moving plate 15, and the protrusion 12 of the engaging member 9 is in contact with the cam portion 17. In this state, the support member 13 also supports the disengagement member 10 via the protrusion 12 of the engagement member 9.

Further, the disengagement member 10 has a convex portion 18 formed on the pressing operation portion 16, and an urging member is formed between the convex portion 18 and the stepped portion (not shown) on the inner surface of the annular shell member 3. A push spring (not shown) is attached. The push spring urges the disengagement member 10 downward.

For example, as shown in FIG. 1, when the dome-shaped shell member 2 is in the non-reversing posture and is in the wearing state, the engaging claw 11 of the engaging member 9 is attached to the front side engaged portion 5 as shown in FIG. 4A. Engaged. In this state, the push spring urges the engaging member 9 via the cam portion 17 of the disengaging member 10 in the direction in which the engaging claw 11 engages with the front engaged portion 5. The engagement of the engaging claw 11 with the front engaged portion 5 is firmly maintained.

As shown in FIG. 4B, the pressing operation unit 16 is pressed upward to move the disengagement member 10 upward along the inner surface of the annular shell member 3. Along with this, the protrusion 12 of the engaging member 9 slides along the inclined edge surface of the cam portion 17. Then, the protrusion 12 of the engaging member 9 is guided by the guide groove 14 of the supporting member 13, and the engaging member 9 moves toward the inner surface of the annular shell member 3. As a result, the engaging claw 11 of the engaging member 9 is disengaged from the front engaged portion 5.

In this way, the cam portion 17 of the disengaging member 10 can move the engaging member 9 in a direction different from the pressing direction of the pressing operation portion 16, so that the engaging member 9 can be moved in the same direction as the engaging direction of the engaging member 9. The configuration can be made more compact than when operating.

Therefore, the dome-shaped shell member 2 can be firmly fixed to the annular shell member 3 by engaging the engaging member 9, and the engaging member 9 can be easily engaged by the pressing operation of the pressing operation unit 16. It can be released.

Further, as shown in FIG. 3, the second lock device 8 is housed in the opening portion 20 formed on the rear side of the annular shell member 3. The second locking device 8 includes a base member 21 and an engaging block 22. A push spring (not shown) is provided between the annular shell member 3 and the engaging block 22 as an urging member for urging the engaging block 22 inward of the annular shell member 3.

On the tip end side of the engaging block 22, an engaging claw 23 having a shape capable of engaging with both the front side engaged portion 5 and the rear side engaged portion 6 is formed. A pulling operation portion 24 is provided on the rear end side of the engaging block 22. The pulling operation unit 24 is formed in a concave shape that opens downward, and can be hung with a finger. When the engaging block 22 is pulled outward against the urging of the push spring by hooking a finger on the pulling operation portion 24, the engaging claw 23 is disengaged from the front side engaged portion 5 and the rear side engaged portion 6. To do.

Although the second lock device 8 is exposed to the outside of the annular shell member 3, it is not conspicuous because the exposed position is on the rear side, and there is almost no effect on the appearance. On the other hand, although the first lock device 7 is located in front of the annular shell member 3, it is provided inside the annular shell member 3. Therefore, the first lock device 7 is not visible from the front, and the appearance is not deteriorated at all.

In addition, a lock device having the same configuration as the first lock device 7 may be provided on the rear side of the annular shell member 3 instead of the second lock device 8 having the above configuration.

In the present embodiment, a so-called riding helmet has been described, but the use of the helmet of the present invention is not limited to this, and the above configuration can be applied to, for example, a helmet for a bicycle or an industrial use. Is.

Further, in the present embodiment, the main body portion of the present invention is an annular shell member 3, the movable portion of the present invention is a dome-shaped shell member 2, and the first lock device for fixing the dome-shaped shell member 2 to the annular shell member 3. Although the device provided with 7 as the locking device of the present invention is mentioned, the present invention is not limited to this. For example, although not shown, the shell may be the main body, the rotatable visor provided inside the main body may be a movable portion, and the shell may be provided with a lock device for fixing the visor at a predetermined position. As the locking device in this case, the configuration of the first locking device 7 can be adopted.

1 ... shell body, 2 ... dome-shaped shell member (moving part), 3 ... annular shell member (main body part), 7 ... first locking device (locking device), 9 ... engaging member, 10 ... disengaging member, 16 ... Pressing operation unit, 17 ... Cam unit.

Claims (3)

A main body that constitutes a shell that covers the wearer's head, a movable part that is supported by the main body and is movable with respect to the main body, and a lock device that leasably fixes the movable part at a predetermined position. In a helmet equipped with
The locking device includes an engaging member that engages with the engaged portion of the movable portion to be fixed, and an engaging disengaging member that disengages the engaging member from the movable portion in response to an operation. With and
The disengagement member is provided so as to be movable in the vertical direction along the inner surface of the main body portion.
A helmet characterized in that the engaging member engages with the engaged portion from a direction intersecting the moving direction of the disengaging member. The locking device includes an urging member that urges the engaging member in a direction in which it engages with the engaged portion of the movable portion.
The disengagement member engages with a pressing operation portion that is exposed at the lower end of the main body portion and presses upward, and by moving upward with the pressing operation of the pressing operation portion to engage with the movable portion. The helmet according to claim 1, further comprising a cam portion for guiding the engaging member in a disengaging direction. The main body is an annular shell member that covers the entire circumference of the wearer's head when worn.
The movable portion is a dome-shaped shell member that covers the upper part of the wearer's head when worn.
The helmet according to claim 1 or 2, wherein the dome-shaped shell member is rotatably provided on the annular shell member.