JP2017210709A - Inner body locking unit of helmet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inner body locking unit of a helmet separating locking parts of an outside plug member for hammock wearing and an inside plug member for ear-chin strap wearing, and preventing falling off of one lock when another lock falls.SOLUTION: An inner body locking unit 50 consists of an outside plug member 51 for hammock wearing and an inside plug member 81 for ear-chin strap wearing. A pair of elastic locking members 66 and 67 of the outside plug member 51 have a pair of locking parts 72 and 73 locked by a pair of locking convex parts 20 and 40 of a helmet main body 10, and a pair of operation parts 77 and 78 releasing the locking. The inside plug member 81 has an elastic locking piece 91 locked by a locking projection 25 of the helmet main body 10 when arranged inside of the outside plug member 51. Locking release parts 75 and 76 releasing the locking of the elastic locking piece 91 are formed to the elastic locking members 66 and 67.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a helmet interior body locking device for removably attaching an interior body such as a hammock or an ear chin string to the inner surface of a helmet body.

  The helmet includes a hemispherical helmet body (cap body) and an interior body that is detachably attached to the inner surface side of the helmet body. The interior body has a hammock that mainly absorbs shocks to the head, a headband for wearing the helmet on the head, and an ear for preventing the helmet from falling off the wearer's head. It consists of a chin string. The helmet has an interior body locking device for attaching the interior body to the helmet body.

  As an example of the interior body locking device, a technique described in Patent Document 1 is known. The content body locking device described in Patent Document 1 includes a first insertion piece for attaching a hammock and a headband, and a second insertion for attaching an ear jaw string disposed inside the first insertion piece. It consists of a piece. The first insertion piece has a pair of first elastic locking members on the insertion body. The pair of first elastic locking members are each formed with a locking claw and an operation portion. When the first insertion piece is inserted between a pair of locking projections formed on the inner surface near the edge of the helmet body, the pair of locking claws are locked to the pair of locking projections. Attached to. Further, when the pair of operation portions are brought close to each other against elasticity, the pair of first elastic locking members are deformed inward and the pair of locking claws are paired with a pair of locking projections. Since it moves from the locking position of the part to the non-locking position to release the locking, it can be removed from the helmet body.

  The second insertion piece has second elastic locking members on both sides of the insertion main body. The pair of second elastic locking members are each formed with a locking claw and a locking release portion. When the second insertion piece is disposed inside the first insertion piece inserted and locked between the pair of locking projections of the helmet body, the pair of locking claws are paired with the pair of locking claws. Locked to the convex part and attached to the helmet body. At this time, the pair of locking release parts abuts on the pair of operation parts of the first insertion piece.

  When the pair of operation portions of the first insertion piece approaches each other against elasticity, the second insertion piece approaches each other in conjunction with the pair of second unlocking portions. Since the member is deformed inward and the pair of locking claws move from the locking position of the pair of locking projections to the non-locking position to release the locking, it can be removed from the helmet body. Thus, in the conventional interior body locking device, the locking claws of the first insertion piece and the second insertion piece are simultaneously locked to the pair of locking projections of the helmet body, and the first difference By operating the operation part of the insertion piece, the locking claws of the first insertion piece and the second insertion piece are simultaneously detached from the locking projection.

JP 2011-89214 A

  In the above-described conventional helmet interior locking device, the pair of locking projections of the helmet main body simultaneously lock the first insertion piece and the second insertion piece with the locking claws. Since it is attached, when at least one of the pair of locking projections is damaged or deformed, there is a problem that the locking claws are unlocked and the interior body is detached from the helmet body. . If the interior body is detached from the helmet body, the protective function of the hammock is impaired and the head is not protected. Further, when the ear chin strap is detached from the helmet body, the helmet body itself is detached from the head, which not only prevents the head from being protected but also hinders the work.

  The above-described breakage, deformation, etc. of the pair of locking projections of the helmet body are phenomena that can occur when the helmet body receives an impact from above. The impact on the helmet gives an excessive load to the pair of locking projections via the pair of locking claws of the locking device for attaching the interior body. The pair of locking projections may be deformed in a direction in which at least one of them is broken or opened due to this excessive load. When at least one of the pair of locking projections is damaged or deformed, the locking claws of the interior body locking device are not locked to the locking projections, and the interior body is detached from the helmet body.

  In a conventional helmet interior locking device, a first insertion piece for a hammock and a headband and a second insertion piece for an ear chin strap are simultaneously locked to a pair of locking projections. Therefore, although it is easy to attach and detach, the first insertion piece and the second insertion piece are simultaneously detached from the helmet body when at least one of the pair of locking projections is damaged or deformed. As described above, the conventional helmet interior locking device is detached from the helmet body due to the impact on the helmet body, and the interior body is detached from the helmet body in conjunction with it, and the protection function for the head is impaired. was there.

  The present invention has been devised in view of the above problems, and can simultaneously release the locking of the outer insertion member for attaching the hammock and the inner insertion member for attaching the ear chin strap, It is an object of the present invention to provide a helmet interior locking device in which a portion to be locked between an insertion member and an inner insertion member is made different so that even if one of them is removed, the other is not removed.

  A helmet interior body locking device according to claim 1 of the present application is a helmet interior body locking device for mounting an interior body on a helmet body, and includes an outer insertion member for mounting a hammock, and the outer insertion member. An inner insertion member for attaching an ear chin string, the outer insertion member has a pair of elastic locking members, and the pair of elastic locking members are the helmet A pair of locking portions locked to the pair of locking projections by inserting the outer insertion member between a pair of locking projections formed on the inner surface near the edge of the main body, and the pair of engagements A pair of operation portions for releasing the locking by moving the locking portion from the locking position of the pair of locking projections to the non-locking position against the elasticity of the material, and forming the inner insertion member Is locked to the pair of locking projections of the helmet body via the pair of locking portions An elastic locking piece that is locked to a locking projection formed on the inner surface near the edge of the helmet body when arranged inside the outer insertion member, and the pair of elastic locking The member is unlocked by operating the pair of operation portions of the outer insertion member to move the elastic locking piece from the locking position of the locking protrusion to the non-locking position against elasticity. An unlocking portion is formed.

  In the helmet interior body locking device according to claim 2 of the present application, inclined guide surfaces with which the locking release portions abut are formed on both sides of the elastic locking pieces of the inner insertion member, respectively. The surface is pressed by the locking release portion by the operation of the pair of operating portions, moves the elastic locking piece from the locking position to the non-locking position, and moves the inner insertion member to the non-locking position. It is formed in a shape that is moved in the direction of pulling out from the outer insertion member.

  In the helmet interior locking device according to claim 3 of the present application, contact edges on which the pair of operation portions contact are formed on both sides of the inner insertion member, It is formed in a shape that abuts on the operation portion and moves the inner insertion member in a direction of pulling out from the outer insertion member by operation of the operation portion.

  In the helmet interior body locking device according to claim 4 of the present application, a pair of first engagement portions are provided on an outer edge of the inner insertion member, and the first insertion portions are provided along the pair of locking protrusions. A second engaging portion that engages with the engaging portion is provided.

  In the helmet interior locking device according to claim 5 of the present application, the first engagement portion is a convex piece protruding outward from the outer edge of the inner insertion member, and the second engagement portion is An engaging groove for receiving the convex piece.

  In the helmet body interior locking device according to claim 6 of the present application, the outer insertion member protrudes from the longitudinal edge of the outer insertion member so as to abut against the operation portion when the operation portion is operated. And a pair of blocking pieces.

  An interior body locking device for a helmet according to the present invention is for attaching an interior body to a helmet body, and is provided with an outer insertion member for attaching a hammock, and an ear jaw string disposed inside the outer insertion member. An inner insertion member for mounting. The outer insertion member has a pair of elastic locking members. A pair of elastic locking members is a pair of locking that is locked to the pair of locking projections by inserting an outer insertion member between a pair of locking projections formed on the inner surface near the edge of the helmet body. And a pair of operation portions for releasing the locking by moving the pair of locking portions from the locking position of the pair of locking projections to the non-locking position against the elasticity of the material. Yes. The inner insertion member is formed on the inner surface near the edge of the helmet body when arranged on the inner side of the outer insertion member locked to the pair of locking projections of the helmet body via the pair of locking portions. And an elastic locking piece locked to the locking protrusion. The pair of elastic locking members are configured to move the elastic locking pieces from the locking position of the locking protrusions to the non-locking position against elasticity by operating the pair of operation portions of the outer insertion member. An unlocking portion for releasing the locking is formed.

  The helmet body interior locking device according to the present invention is a pair of elastic locks when an outer insertion member for attaching a hammock is inserted between a pair of locking projections formed on the inner surface near the edge of the helmet body. The locking portion of the member is locked to the pair of locking projections, and the outer insertion member can be attached to the helmet body at a predetermined position between the pair of locking projections. When the internal body locking device of the helmet operates the pair of operation parts, the pair of locking parts moves from the locking position of the pair of locking projections to the non-locking position against the elasticity of the material. The lock | rock part of this lock | release part is cancelled | released and an outer side insertion member can be taken out from a helmet body. Thus, the helmet interior body locking device can attach and detach the hammock to the helmet body.

  In the helmet body interior locking device according to the present invention, the inner insertion member for attaching the ear chin strap can be arranged inside the outer insertion member for attaching the hammock. The helmet interior body locking device is formed on the inner surface near the edge of the helmet body when the inner insertion member is placed inside the outer insertion member that is inserted and locked between the pair of locking projections of the helmet body. The elastic locking piece of the inner insertion member is locked to the formed locking protrusion, and the inner insertion member can be attached to the helmet body at a position arranged inside the outer insertion member. When the inner body locking device of the helmet operates the pair of operation parts of the outer insertion member, the locking release part resists the elastic locking piece of the inner insertion member from the elastic position of the locking projection. The inner insertion member can be taken out from the helmet body by moving to the non-locking position, releasing the locking of the elastic locking piece. In this manner, the helmet interior body locking device can attach and detach the ear chin strap to the helmet body. When the inner body locking device of the helmet operates the pair of operation portions of the outer insertion member, the outer insertion member and the inner insertion member can be detached from the helmet body, and the hammock and the ear chin strap can be detached from the helmet body. .

  The helmet interior locking device according to the invention of the present application is configured to lock the pair of locking portions of the outer insertion member for mounting the hammock to the pair of locking projections of the helmet main body, The elastic locking piece of the insertion member is locked to the locking projection of the helmet body, the interior body is attached to the helmet body, and at least one of the pair of locking projections is damaged or deformed to lock the outer insertion member Even if the part is removed, the inner insertion member will not come off, and if the inner insertion member is locked to the helmet body, the outer insertion member will not come off the helmet body, so the protection function is greatly increased There is an effect of improving. The helmet interior locking device according to the present invention operates the pair of operation portions of the outer insertion member to release the engagement between the outer insertion member and the inner insertion member, and inserts the outer insertion member from the helmet body. There is an effect that the member and the inner insertion member can be removed substantially simultaneously, and the attachment and removal can be performed very easily. The interior body locking device for a helmet according to the present invention is configured to improve the engagement between the interior body and the helmet body and to be detachable from the interior body with a simple operation.

  In the helmet body interior locking device according to the present invention, the unlocking portions formed on the pair of elastic locking members of the outer insertion member abut both sides of the elastic locking pieces of the inner insertion member. An inclined guide surface is formed. The inclined guide surface is pressed by the unlocking portion by the operation of the pair of operation portions of the outer insertion member, moves the elastic locking piece from the locking position to the non-locking position, and is inserted into the inner side. It is formed in a shape that moves the member in the direction of pulling out from the outer insertion member.

  In the helmet interior locking device according to the present invention, the locking portions of the pair of elastic locking members are locked to the pair of locking projections of the helmet body, and the outer insertion member for mounting the hammock is the helmet body. Attached to. Moreover, it arrange | positions inside an outer side insertion member, an elastic locking piece is latched by the latching protrusion of a helmet main body, and the inner side insertion member for ear chin string attachment is attached to a helmet main body. When the inner body locking device of the helmet operates the pair of operation portions of the outer insertion member, the pair of unlocking portions come into contact with the inclined guide surface of the elastic locking piece of the inner insertion member, and the elastic locking piece Is moved from the locking position of the locking projection to the non-locking position against elasticity, and the inner insertion member is moved in the direction of pulling out from the outer insertion member. Since the inner body locking device of the helmet according to the present invention pulls out the inner insertion member from the helmet body while releasing the locking of the elastic locking piece, the inner insertion member can be easily taken out from the helmet body. There is an effect that the ear chin string can be easily removed.

  In the helmet interior body locking device according to the present invention, contact edges on which a pair of operation portions of the outer insertion member abut are formed on both sides of the inner insertion member. The contact edge is formed in a shape that comes into contact with the operation portion and moves the inner insertion member in the direction of pulling out from the outer insertion member by operating the pair of operation portions of the outer insertion member.

  When the inner body locking device of the helmet operates the pair of operation portions of the outer insertion member, the pair of unlocking portions locks the elastic protrusions of the inner insertion member against elasticity to lock the locking protrusions. The position is moved from the position to the non-locking position, and the operating portion is brought into contact with the contact edge of the inner insertion member, and is moved in a direction to pull out the inner insertion member from the outer insertion member. Since the interior body locking device for a helmet according to the present invention pulls out the inner insertion member from the helmet body while releasing the locking of the elastic locking piece, the inner insertion member can be easily taken out from the helmet body. There is an effect that the ear chin string can be easily removed.

1 is an overall perspective view showing one embodiment of an interior body locking device for a helmet according to the present invention. It is sectional drawing of the helmet which mounted | wore with the interior-body locking device of the helmet of FIG. It is the perspective view which looked at the structure of the helmet of FIG. 2 from the inner side. It is the bottom view which looked at the composition of the helmet of Drawing 3 from the lower side. It is a perspective view explaining the outer side insertion member of the interior-body locking device of the helmet of FIG. It is the bottom view which looked at the outer side insertion member of FIG. 5 from the lower side. It is explanatory drawing of the outer side insertion member of FIG. 5, (a) is a front view, (b) is a top view, (c) is a bottom view, (d) is a left view, (e) is a rear view. is there. It is a perspective view explaining the inner side insertion member of the interior-body locking device of the helmet of FIG. It is explanatory drawing of the inner side insertion member of FIG. 8, Comprising: (a) is a front view, (b) is a top view, (c) is a bottom view, (d) is a left view, (e) is a rear view. is there. It is a perspective view explaining the procedure which equips a helmet with an outer side insertion member. It is a perspective view explaining the state which equipped the helmet with the outside insertion member. It is the bottom view which looked at the composition which equipped the helmet with the outside insertion member from the lower side. It is a perspective view explaining the procedure which equips an outer side insertion member with an inner side insertion member. It is a front view explaining the state which attached the inner side insertion member to the outer side insertion member. It is the bottom view which looked at the composition which attached the inner side insertion member to the outer side insertion member from the lower side. It is explanatory drawing explaining the procedure which removes an inner side insertion member from an outer side insertion member. It is explanatory drawing explaining the procedure which removes an outer side insertion member from a helmet. It is a perspective view of the inner side insertion member which concerns on 2nd Example of this invention. It is a perspective view of the attaching part which concerns on 2nd Example of this invention. It is a bottom view of an attachment part similarly. It is the front view of the inner side insertion member and attachment part which concern on 2nd Example of this invention, Comprising: It is the figure which removed and showed the outer side insertion member. It is sectional drawing of the inner side insertion member and attaching part along line AA of FIG. It is a front view of the outer side insertion member which concerns on 3rd Example of this invention, Comprising: It is a figure which shows the state before operation of an outer side insertion member. It is a front view of an outer side insertion member similarly, Comprising: The state at the time of operation of an outer side insertion member is shown as the continuous line, and the state before operation is shown with the broken line.

  The outline | summary of the interior body locking device of a helmet is demonstrated. As shown in FIG. 2, the interior body locking device 50 of the helmet 1 attaches the interior body 3 to the helmet body 10, and includes an outer insertion member 51 for attaching the hammock 5, and an outer insertion member 51. And an inner insertion member 81 for mounting the ear chin string 7. As shown in FIG. 5, the outer insertion member 51 has a pair of elastic locking members 66 and 67. As shown in FIGS. 1 and 3, the pair of elastic locking members 66 and 67 includes an outer insertion member 51 between the pair of locking projections 20 and 40 formed on the inner surface near the edge 10 a of the helmet body 10. A pair of locking portions (locking claws) 72 and 73 locked to the pair of locking projections 20 and 40 by being inserted, and a pair of locking portions 72 and 73 against the elasticity of the material, A pair of operation portions 77 and 78 for releasing the locking by moving the locking projections 20 and 40 from the locking position to the non-locking position are formed.

  As shown in FIGS. 1 and 8, the inner insertion member 81 is an inner side of the outer insertion member 51 in which the pair of locking portions 72 and 73 are locked to the pair of locking protrusions 20 and 40 of the helmet body 10. The elastic locking piece 91 is locked to the locking protrusion 25 formed on the inner surface near the edge 10a of the helmet body 10 when being pushed and arranged. As shown in FIGS. 1 and 5, at least one of the pair of elastic locking members 66 and 67 is provided with the elastic locking piece 91 by operation of the pair of operation portions 77 and 78 of the outer insertion member 51. Lock release portions (lock release protrusions) 75 and 76 that release the lock by moving from the lock position of the lock protrusion 25 to the non-lock position against elasticity are formed.

  As shown in FIG. 1, the interior body locking device 50 of the helmet 1 includes a pair of locking projections 20 formed on the inner surface in the vicinity of the edge 10 a of the helmet body 10 with an outer insertion member 51 for mounting the hammock 5. , 40, the locking portions 72, 73 of the pair of elastic locking members 66, 67 are locked to the pair of locking projections 20, 40, and the outer insertion member 51 is connected to the pair of locking projections. The helmet body 10 can be attached at a predetermined position between 20,40. As shown in FIG. 17, the interior body locking device 50 of the helmet 1 operates the pair of operation parts 77 and 78, so that the pair of locking parts 72 and 73 resists the elasticity of the material and the pair of locking protrusions. It moves to the non-locking position from the locking position of the parts 20 and 40, locking of a pair of locking parts 72 and 73 is cancelled | released, and the outer side insertion member 51 can be taken out from the helmet main body 10. FIG. Thus, the interior body locking device 50 of the helmet 1 can attach and detach the hammock 5 to the helmet body 10.

  As shown in FIG. 1, the interior body locking device 50 of the helmet 1 can arrange an inner insertion member 81 for mounting the ear jaw string 7 inside an outer insertion member 51 for mounting the hammock 5. As shown in FIG. 13, the helmet interior body locking device 50 includes an inner insertion member on the inner side of the outer insertion member 51 inserted and locked between the pair of locking projections 20 and 40 of the helmet body 10. When 81 is arranged, as shown in FIG. 1, the elastic locking piece 91 of the inner insertion member 81 is locked to the locking protrusion 25 formed on the inner surface near the edge 10a of the helmet body 10, and the inner insertion member 81 can be attached to the helmet body 10 at a position arranged inside the outer insertion member 51.

  As shown in FIG. 16, when the helmet interior body locking device 50 operates a pair of operation portions 77 and 78 of the outer insertion member 51, the engagement release portions 75 and 76 become elastic members of the inner insertion member 81. The stopper piece 91 is moved against the elasticity from the locking position of the locking protrusion 25 to the non-locking position, the locking of the elastic locking piece 91 is released, and the inner insertion member 81 is taken out from the helmet body 10. be able to. In this way, the interior body locking device 50 of the helmet 1 can attach and detach the ear chin string 7 to and from the helmet body 10. That is, when the inner body locking device 50 of the helmet 1 operates the pair of operation portions 77 and 78 of the outer insertion member 51, the outer insertion member 51 and the inner insertion member 81 are detached from the helmet body 10, and the hammock 5 The ear chin string 7 can be removed from the helmet body 10.

  As shown in FIG. 1, the interior body locking device 50 of the helmet 1 includes a pair of locking portions 72, 73 of the outer insertion member 51 for mounting the hammock 5, and a pair of locking projections 20, The inner body 3 is attached to the helmet body 10 by engaging the elastic engagement piece 91 of the inner insertion member 81 for attaching the ear chin string 7 to the engagement protrusion 25 of the helmet body 10. Yes. The inner body locking device 50 of the helmet 1 is configured such that even if at least one of the pair of locking projections 20 and 40 is damaged or deformed and the locking portion 72 or 73 of the outer insertion member 51 is removed, the inner insertion member Since 81 does not come off from the locking projection 25, if the inner insertion member 81 is locked to the helmet body 10, the outer insertion member 51 will not come off from the helmet body 10. Therefore, the protection function of the interior body locking device 50 of the helmet 1 is greatly improved.

  The interior body locking device 50 of the helmet 1 can release the locking of the outer insertion member 51 and the inner insertion member 81 by operating the pair of operation portions 77 and 78 of the outer insertion member 51. Since the outer insertion member 51 and the inner insertion member 81 can be removed almost simultaneously, the attachment / detachment can be performed very easily. Thus, the interior body locking device 50 of the helmet 1 is configured to improve the retainability of the interior body 3 and the helmet body 10 and be detachable with a simple operation.

  As shown in FIGS. 8 and 9, the interior body locking device 50 of the helmet 1 has a pair of elastic locking members 66 of the outer insertion member 51 on both sides of the elastic locking pieces 91 of the inner insertion member 81. , 67 are formed with inclined guide surfaces 101, 102 with which the unlocking portions 75, 76 abut. The inclined guide surfaces 101 and 102 are pressed by the unlocking portions 75 and 76 by the operation of the pair of operating portions 77 and 78 of the outer insertion member 51, and the elastic locking piece 91 is disengaged from the locking position. It is formed in a shape that is moved to the stop position and moved in a direction in which the inner insertion member 81 is pulled out from the outer insertion member 51.

  The interior body locking device 50 of the helmet 1 has a pair of elastic locking members 66 and 67 and the locking portions 72 and 73 of the helmet body 10 locked to the pair of locking projections 20 and 40, so that the hammock is mounted. The outer insertion member 51 is attached to the helmet body 10. Moreover, it arrange | positions inside the outer side insertion member 51, the elastic latching piece 91 is latched by the latching protrusion 25 of the helmet main body 10, and the inner side insertion member 81 for ear chin string attachment is attached to the helmet main body 10. It is done.

  When the inner body locking device 50 of the helmet 1 operates the pair of operation portions 77 and 78 of the outer insertion member 51, the pair of locking release portions 75 and 76 of the elastic insertion piece 91 of the inner insertion member 81. Abutting against the inclined guide surfaces 101 and 102, the elastic locking piece 91 is moved from the locking position of the locking projection 25 to the non-locking position against elasticity, and the inner insertion member 81 is moved to the outer insertion member. It is moved in the direction of pulling out from 51. Since the inner body locking device 50 of the helmet 1 pulls out the inner insertion member 81 from the helmet body 10 while releasing the locking of the elastic locking piece 91, the inner insertion member 81 can be easily taken out. The ear chin string 7 can be easily removed from the main body 10.

  In the interior body locking device 50 of the helmet 1, the operation portions 77 and 78 formed on the pair of elastic locking members 66 and 67 of the outer insertion member 51 are in contact with both sides of the inner insertion member 81. Contact edges 84c and 84d are formed. The contact edges 84 c and 84 d are in contact with the operation portions 77 and 78 by operating the pair of operation portions 77 and 78 of the outer insertion member 51, and the inner insertion member 81 is pulled out from the outer insertion member 51. It is formed in a shape to be moved.

  When the interior body locking device 50 of the helmet 1 operates the pair of operation portions 77 and 78 of the outer insertion member 51, the pair of unlocking portions 75 and 76 causes the elastic locking piece 91 of the inner insertion member 81 to move. The locking protrusion 25 is moved from the locking position to the non-locking position against elasticity, and the operation portions 77 and 78 are in contact with the contact edges 84c and 84d of the inner insertion member 81, so that the inner insertion member is 81 is moved in the direction of pulling out from the outer insertion member 51. Since the inner body locking device 50 of the helmet 1 pulls out the inner insertion member 81 from the helmet body 10 while releasing the locking of the elastic locking piece 91, the inner insertion member 81 can be easily taken out. The ear chin string 7 can be easily removed from the main body 10.

  Furthermore, the helmet interior body locking device will be described in detail. First, the helmet 1 will be described. As shown in FIGS. 1 and 2, the helmet 1 includes a helmet body 10 and an interior body 3 attached to the helmet body 10. The interior body 3 includes a hammock 5 having a function of absorbing an impact, a headband 6 for mounting the helmet 1 on the head, and an ear chin for preventing the helmet 1 from falling off the wearer's head. It consists of string 7. The helmet body 10 has an interior body locking device 50 to which the interior body 3 is attached.

  As shown in FIG. 2, the attachment part 11 which inserts the interior body locking device 50 so that attachment or detachment is possible is formed in the inner surface of the helmet main body 10 near the outer periphery 10a. The attachment portions 11 are provided at four locations around the helmet body 10. As shown in FIGS. 3 and 4, the attachment portion 11 includes a pair of guide portions 12 and 32 formed at a predetermined interval and a locking projection 25. Incidentally, FIG. 3 is a perspective view of the configuration of the helmet body 10 viewed from the outside. The guide portions 12 and 32 are formed by front guide walls 15 and 35, rear guide walls 16 and 36, and upper walls 17 and 37.

  As shown in FIG. 4, the front guide walls 15 and 35 are formed in a substantially L shape by the front walls 13 and 33 and the side walls 14 and 34. The rear guide walls 16 and 36 are rear portions of the front end guide edges 13a and 33a of the front walls 13 and 33, and are formed substantially parallel to the front end guide edges 13a and 33a. The upper walls 17 and 37 are formed at the upper ends of the front guide walls 15 and 35 and the rear guide walls 16 and 36. Guide grooves 18 and 38 are formed between the front walls 13 and 33 and the rear guide walls 16 and 36 of the front guide walls 15 and 35.

  Locking projections 20 and 40 are provided at the lower ends of the opposing surfaces (inner surfaces) of the pair of rear guide walls 16 and 36. The locking projections 20 and 40 are formed in a rectangular shape, and guide surfaces 21 and 41 are provided on the front side. A restricting piece 22 that is substantially parallel to the side wall 14 is formed in the approximate center of the upper wall 17 of the left guide portion 12. A restricting piece 42 substantially parallel to the side wall 34 is formed at the approximate center of the upper wall 37 of the right guide portion 32. The restriction pieces 22 and 42 are approximately half the length of the side walls 14 and 34. Further, the locking projection 25 is formed so as to project substantially at the center of the pair of locking projections 20 and 40. The locking projection 25 is formed in a rectangular shape, and an inclined guide surface 26 is formed on the front side from the lower side to the upper side.

  Next, the interior body locking device will be described. As shown in FIG. 1, the inner body locking device 50 includes an outer insertion member (first insertion piece) 51 for attaching a hammock (hammock belt) 5 and a headband 6, and an ear jaw cord 7 attachment. It is composed of an inner insertion member (second insertion piece) 81. As shown in FIGS. 5 to 7, the outer insertion member 51 is integrally formed of synthetic resin and includes a mounting plate 52 and an insertion plate 62. The mounting plate 52 is formed in a flat plate shape, and a band attaching portion 53 for attaching the headband 6 is provided at the upper portion, and a belt attaching portion 55 for attaching the hammock 5 is provided at the lower portion. A plurality of locking holes 54 for locking the headband 6 made of synthetic resin are formed in the band attaching portion 53. The belt attachment portion 55 is formed with a pair of insertion ports 56 and 57 that are substantially the same width as the hammock 5 and through which the hammock 5 is inserted.

  The insertion plate 62 of the outer insertion member 51 is formed in a flat plate shape, and the upper end front portion is integrally connected to the rear surface of the lower end of the mounting plate 52. On the front surface of the insertion plate 62, guide walls 63 and 64 that continue to the rear surface of the mounting plate 52 are formed on both sides. The length between the guide walls 63 and 64 is substantially the same as that between the front end guide edge 13a of the front wall 13 of the mounting portion 11 and the front end guide edge 33a of the front wall 33, as shown in FIG. The guide wall 63 is guided to the tip guide edge 13a, and the right guide wall 64 is guided to the tip guide edge 33a. Blocking pieces 65 a and 65 b are formed on both lower sides of the insertion plate 62.

  As shown in FIG. 5, a pair of elastic locking members 66 and 67 are provided on the rear surface of the insertion plate 62. A stopper piece 65 is formed on the upper rear surface of the insertion plate 62. The pair of elastic locking members 66 and 67 includes locking rods 68 and 69 whose upper ends are integrally formed with the stopper piece 65, and operating rods formed substantially perpendicular to the lower ends of the locking rods 68 and 69. 70, 71. The locking rod 68 has a locking claw 72 formed on one side (right side in FIG. 5), and a locking release protrusion 75 formed on the other side (left side in FIG. 5). Further, the locking rod 69 has a locking release projection 76 formed on one side (right side in FIG. 5) and a locking claw 73 formed on the other side (left side in FIG. 5). As described above, the locking rods 68 and 69 have locking claws (locking portions) 72 and 73 formed on the outer side and locking release protrusions (locking releasing portions) 75 and 76 formed on the inner side. The operating rods 70 and 71 are bent outside the locking rods 68 and 69, and operation pieces 77 and 78 are formed at the ends.

  As shown in FIG. 7, the pair of elastic locking members 66 and 67 are disposed substantially parallel to the insertion plate 62, the surface (front surface) on the insertion plate 62 side is flat, and the flat surface 66a. , 67a and the rear surface of the insertion plate 62, a storage space 79 is formed. The operation pieces 77 and 78 are formed in a substantially L shape by knobs 77 a and 78 a that are substantially perpendicular to the operation rods 70 and 71 and guide parts 77 b and 78 b that are substantially parallel to the front surface of the insertion plate 62. The knobs 77a and 78a are positioned outside the blocking pieces 65a and 65b of the insertion plate 62, and the guide portions 77b and 78b are positioned on the front side of the blocking pieces 65a and 65b.

  As shown in FIGS. 8 and 9, the inner insertion member 81 for attaching the ear chin strap is formed in a flat plate shape, and includes an insertion main body 82 and an attachment plate 83 formed at the lower end portion of the insertion main body 82. Become. A connecting port 85 for connecting the ear chin string 7 is formed in the mounting plate 83. The mounting plate 83 is formed wider than the insertion body 82, and in FIG. 8, an inclined guide edge 84a and a contact edge 84c are formed on the left side, and an inclined guide edge 84b and a contact edge 84d are formed on the right side. . The upper portions of the inclined guide edges 84a and 84b are respectively connected to the lower ends 82a and 82b of the insertion body 82, and are formed so as to become wider from the upper portion toward the lower portion. Further, the contact edges 84c and 84d are formed so that the upper part is connected to the lower part of the inclined guide edges 84a and 84b and becomes wider from the upper part toward the lower part.

  The insertion body 82 has an elastic locking piece 91 formed by a substantially U-shaped notch 86. The elastic locking piece 91 has an upper end edge 91 a connected to the insertion main body 82, and is formed to protrude toward the rear surface 82 d of the insertion main body 82. The elastic locking piece 91 includes a slide portion 92 formed in the vertical direction of the central portion, and guide portions 93 and 96 provided on the left and right sides of the slide portion 92. On the rear surface of the slide portion 92, a slide inclined surface 92a that is inclined rearward from the upper end edge 91a toward the lower end edge 91b is formed.

  The guide portions 93 and 96 have first inclined surfaces 94 and 97 formed on the outer surfaces. The first inclined surfaces 94, 97 are formed in a substantially triangular shape with the front end edges 94a, 97a as the bottom and the rear end center 94b, 97b as the apex. The first inclined surfaces 94 and 97 are inclined so that the surfaces approach each other from the front end edges 94a and 97a toward the rear end edge centers 94b and 97b. That is, the first inclined surfaces 94, 97 have the front end edges 94a, 97a positioned outside, the rear end edge centers 94b, 97b positioned inside, and the surfaces from the outer front end edges 94a, 97a to the inner rear end. It inclines toward the edge center 94b, 97b. Further, the guide portions 93 and 96 are formed with second inclined surfaces 95 and 98 which are inclined rearward from the upper end edge 91a toward the rear end edge centers 94b and 97b on the rear surfaces. Further, the guide portions 93 and 96 are provided with flat surfaces 99 and 100 below the second inclined surfaces 95 and 98, respectively.

  In addition, inclined guide surfaces 101 and 102 are formed outside the flat surfaces 99 and 100. The inclined guide surfaces 101 and 102 are inclined so as to approach inward toward the flat surfaces 99 and 100 from the lower ridgelines 94c and 97c forming the first inclined surfaces 94 and 97, and the flat surfaces 99 and 100 Intersect. The inclined guide surfaces 101, 102 are ridge lines 101b connecting the ridge lines 101a, 102a intersecting the flat surfaces 99, 100, the lower ends of the ridge lines 101a, 102a, and the lower ends of the ridge lines 94c, 97c of the first inclined surfaces 94, 97. , 102b. Therefore, the inclined guide surfaces 101 and 102 are formed in a substantially triangular shape by the ridge lines 101a and 102a, the ridge lines 94c and 97c, and the ridge lines 101b and 102b. The ridge lines 101a and 102a are inclined so as to approach each other from the lower end toward the rear end edge centers 94b and 97b (from the outside toward the inside), and the ridge lines 101b and 102b approach each other from the front end toward the rear end. Inclined (from outside to inside). Therefore, the inclined guide surfaces 101 and 102 are inclined from the outer lower ridge lines 101b and 102b toward the inner rear end edge centers 94b and 97b.

  A pair of reverse insertion preventing projections 85a and 85b are formed on the upper end of the rear surface 82d of the insertion body 82. Further, guide ridges 87 and 88 are provided on the left and right sides of the rear surface 82d of the insertion main body 82, respectively. Guide protrusions 89a and 89b are formed on both lower sides of the front surface 82c of the insertion body 82.

  The helmet interior body locking device 50 has the above-described configuration and is attached to the helmet body 10 as follows. As shown in FIG. 10, the outer insertion member 51 of the inner body locking device 50 is inserted between the pair of guide portions 12 and 32 of the attachment portion 11 from below. As shown in FIG. 11, in the outer insertion member 51, the left and right sides of the insertion plate 62 are guided by the guide grooves 18 and 38 of the guide portions 12 and 32, and the side end portions 62a and 62b of the insertion plate 62 are guided. The upper ends 62c of the insertion plates 62 are in contact with the upper walls 17 and 37 of the guide portions 12 and 32, respectively. , 73 are locked to the locking projections 20, 40 of the guide portions 12, 32.

  The locking claws 72 and 73 and the locking projections 20 and 40 are locked as follows. As shown in FIG. 17C, when the outer insertion member 51 of the interior body locking device 50 is inserted between the pair of guide portions 12 and 32 of the mounting portion 11 from below, the engagement of the elastic locking members 66 and 67 is achieved. As shown in FIG. 17B, the elastic pawls 72 and 73 come into contact with the locking projections 20 and 40 of the guide portions 12 and 32, and the locking pawls 72 and 73 approach each other as shown in FIG. , 67 bend inward. As shown in FIG. 17A, when the locking claws 72 and 73 of the elastic locking members 66 and 67 pass through the locking projections 20 and 40 of the guide portions 12 and 32, the elastic locking members are caused by the elastic restoring force. 66 and 67 return to the original state, and the locking claws 72 and 73 are locked to the locking projections 20 and 40.

  As shown in FIG. 11, the outer insertion member 51 is prevented from moving backward by the rear guide walls 16, 36 while the insertion plate 62 is prevented from moving forward by the front guide walls 15, 36. 35, the movement of the insertion plate 62 in the left direction is guided by the restriction piece 22, and the movement of the insertion plate 62 in the right direction is blocked by the restriction piece 42, so that the insertion plate 62 moves upward. Is prevented by the upper walls 17 and 37, and the downward movement of the insertion plate 62 is blocked by the locking projections 20 and 40, so that the helmet body 10 can be mounted stably. As shown in FIG. 14, the outer insertion member 51 has guide walls 63, 64 formed on the front surface of the insertion plate 62, the front guide edge 13 a of the front wall 13 of the mounting portion 11 and the front end of the front wall 33. Guided by the guide edge 33a. In this way, the hammock 5 and the headband 6 are attached to the helmet body 10.

  Next, as shown in FIG. 13, the inner insertion member 81 of the inner body locking device 50 is inserted into the storage space 79 of the outer insertion member 51 attached to the attachment portion 11. As shown in FIG. 1, the inner insertion member 81 has a front surface 82 c of the insertion body 82 abutting against the insertion plate 62 of the outer insertion member 51, and a rear surface 82 d of the insertion body 82 is a pair of elastic locking members. 66, 67 are in contact with the flat surfaces 66a, 67a, the side end portions 82e, 82f of the insertion body 82 are in contact with the rear guide walls 16, 36 of the guide portions 12, 32, respectively, and the upper end 82g of the insertion body 82 is The elastic locking piece 91 of the insertion main body 82 is locked to the locking projection 25 by contacting the stopper piece 65 of the outer insertion member 51. The unlocking protrusions 75 and 76 of the pair of elastic locking members 66 and 67 are inclined guide surfaces 101 and 102 formed on both sides of the elastic locking piece 91 of the inner insertion member 81 as shown in FIG. It touches the lower part of the.

  The inner insertion member 81 is inserted so that the elastic locking piece 91 faces the locking protrusion 25 side of the helmet body 10. The inner insertion member 81 has the reverse insertion preventing projections 85a and 85b abutting against the lower end 62d of the outer insertion member 51 even if the elastic locking piece 91 is not inserted toward the locking projection 25 side of the helmet body 10. Since it touches, it cannot be inserted. Therefore, the inner insertion member 81 does not mistake the insertion direction.

  The elastic locking piece 91 and the locking projection 25 are locked as follows. The inner insertion member 81 of the inner body locking device 50 is inserted into the storage space 79 of the outer insertion member 51 attached to the attachment portion 11 of the helmet body 10. The elastic locking piece 91 bends forward when the slide inclined surface 92 a contacts the locking projection 25. When the elastic locking piece 91 passes through the locking projection 25, the elastic locking piece 91 returns to the original state by the elastic restoring force, and the elastic locking piece 91 is locked to the locking projection 25.

  As shown in FIG. 1, the inner insertion member 81 is prevented from moving backward by the pair of elastic locking members 66 and 67, and the forward movement of the insertion main body 82 is prevented from moving outward. The member 51 is blocked by the insertion plate 62, the leftward movement of the insertion body 82 is blocked by the rear guide wall 16, and the rightward movement of the insertion body 82 is blocked by the rear guide wall 36. The upward movement of the insertion body 82 is blocked by the stopper piece 65, and the downward movement of the insertion body 82 is blocked by the locking projection 25, so that the helmet body 10 can be stably attached. In this way, the ear chin string 7 is attached to the helmet body 10.

  The helmet interior body locking device 50 can be detached from the helmet body 10 as follows. As shown in FIG. 16A, the elastic locking members 66 and 67 of the outer insertion member 51 are bent inward so that the knobs 77a and 78a of the operation pieces 77 and 78 are brought close to each other. The knobs 77a and 78a can be bent until they come into contact with the blocking pieces 65a and 65b of the insertion plate 62.

  As shown in FIG. 16B, the locking release protrusions 75 and 76 press the inclined guide surfaces 101 and 102 of the elastic locking piece 91 of the inner insertion member 81. The elastic locking piece 91 moves downward while bending forward, and comes off the locking projection 25. As shown in FIG. 16C, when the locking release protrusions 75 and 76 are positioned at the rear end edge centers 94b and 97b of the first inclined surfaces 94 and 97 of the elastic locking piece 91, the second inclined surface 95 is obtained. , 98 disengage the locking release protrusions 75, 76 from the first inclined surfaces 94, 97, and the inner insertion member 81 jumps out of the outer insertion member 51. As shown in FIG. 16D, the knobs 77a and 78a abut against the abutting edges 84c and 84d and / or the inclined guide edges 84a and 84b of the inner insertion member 81, and the inner insertion member 81 is inserted outside. Pull out from member 51. In this way, the inner insertion member 81 can be removed from the helmet body 10.

  Next, as shown in FIG. 17A, the elastic locking members 66 and 67 of the outer insertion member 51 are bent inward so that the knobs 77a and 78a of the operation pieces 77 and 78 are brought close to each other. As shown in FIG. 17B, the locking claws 72 and 73 are disengaged from the locking projections 20 and 40. As illustrated in FIG. 17C, the outer insertion member 51 is pulled out from the attachment portion 11 of the helmet body 10. In this manner, the outer insertion member 51 can be removed from the helmet body 10.

  In the above description, the helmet interior body locking device 50 removes the inner insertion member 81 from the helmet body 10 and then removes the outer insertion member 51 from the helmet body 10. However, the inner insertion member 81 and the outer insertion member 51 can be detached from the helmet body 10 at substantially the same time so that the knobs 77a and 78a of the operation pieces 77 and 78 are brought close to each other. Note that the helmet interior body locking device 50 cannot remove only the outer insertion member 51 from the helmet body 10 with the inner insertion member 81 attached to the helmet body 10. The outer insertion member 51 is attached to the helmet body 10 by being engaged with the engaging projections 20 and 40, and the inner insertion member 81 is attached to the helmet body 10 by being engaged with the engagement protrusion 25. Even if at least one of the locking projections 20 and 40 is damaged or deformed and the locking is released, the outer insertion member 51 is locked by the locking protrusion 25 even if the locking is released. The helmet body 10 will not come off.

  Next, a second embodiment of the interior body locking device 50 according to the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the component same as the 1st Example mentioned above, and the overlapping description is abbreviate | omitted. 18 and 19, “up”, “down”, “left” and “right” are used, the inside of the helmet body 10 is called “front”, and the outside is called “rear”. .

  FIG. 18 is a perspective view of the inner insertion member 181 according to the second embodiment of the present invention. The inner insertion member 181 has basically the same configuration as the inner insertion member 81 of the first embodiment, and has an insertion main body 82 having an elastic locking piece 91 and a lower width of the insertion main body 82. And a mounting plate 83 formed on the surface. The inner insertion member 181 includes an upper end 82g and a lower end 84e that are parallel to each other, a pair of side end portions 82e and 82f that are orthogonal to the upper end 82g and the lower end 84e, and a side end portions 82e and 82f, and a lower end 84e. Inclined guide edges 84a and 84b and contact edges 84c and 84d are formed.

  Guide protrusions 87 and 88 project from the rear surface 82d of the insertion body 82 along the side end portions 82e and 82f, respectively. The guide ridges 87, 88 extend from the upper end 82g to a lower end 82a, 82b (see FIG. 8) of the insertion body 82 from a position spaced a predetermined distance downward. Further, in the present embodiment, the second guide protrusions 126 and 127 and the third guide protrusions 128 and 129 protrude from the rear surface 83a of the mounting plate 83 in succession to the guide protrusions 87 and 88, respectively. The second guide protrusions 126 and 127 protrude from the inclined guide edges 84a and 84b, respectively. The third guide protrusions 128 and 129 protrude along the contact edges 84c and 84d, respectively, and partially protrude along both ends of the lower end 84e. The guide protrusions 87 and 88, the second guide protrusions 126 and 127, and the third guide protrusions 128 and 129 have the same thickness.

  Further, projecting pieces 130 and 131 (first engaging portions) are provided so as to protrude from the lower ends of the guide ridges 87 and 88 and the upper ends of the second guide ridges 126 and 127, respectively. Each convex piece 130, 131 protrudes outward from the side end portions 82e, 82f and the inclined guide edges 84a, 84b, an upper end portion 136 that is parallel to the upper end 82g, and a side end portion that is orthogonal to the upper end portion 136. 137. Each of the convex pieces 130 and 131 has a thickness approximately half that of the guide convex stripes 87, 88, 126, 127, 128, and 129 (see FIG. 22). The convex pieces 130 and 131 are accommodated in engagement grooves 142 and 143 of the mounting portion 111 described later so as to suppress the movement of the inner insertion member 181 in the front-rear direction and upward.

  Further, as shown in FIG. 18, the inner insertion member 181 has protrusions 138 and 139 that protrude from both ends of the upper end 82g. The protrusions 138 and 139 insert the inner insertion member 181 into the outer insertion member 51 so that when the upper end 82g contacts the stopper piece 65, both end portions of the stopper piece 65 are sandwiched from the side. It extends over a predetermined height from the upper end 82g.

  Next, with reference to FIGS. 19 and 20, a mounting portion 111 according to a second embodiment of the present invention will be described. FIG. 19 is a perspective view of the attachment portion 111, and FIG. 20 is a bottom view of the attachment portion 111. The attachment portion 111 provided on the helmet body 10 has basically the same configuration as the attachment portion 11 of the first embodiment, and includes front guide walls 15 and 35, rear guide walls 16 and 36, and an upper wall 17. , 37 and a pair of guide portions 12, 32 formed respectively. The front guide walls 15 and 35 have front walls 13 and 33, respectively. Locking projections 20 and 40 are provided at the lower ends 16a and 36a of the rear guide walls 16 and 36, respectively. Each of the locking projections 20 and 40 has a rectangular shape, and protrudes from the rear guide walls 16 and 36 toward the inside, that is, the other locking projections 20 and 40 facing each other. The locking projections 20 and 40 have guide surfaces 21 and 41 on the front side that are substantially parallel to the front walls 13 and 33.

  Further, at the lower ends 16a and 36a of the rear guide walls 16 and 36, engaging grooves 142 and 143 (second engaging portions) for receiving the protruding pieces 130 and 131 of the inner insertion member 181 are provided as locking protruding portions. 20 and 40, respectively. As shown in FIG. 19, the engaging grooves 142 and 143 extend upward from the lower ends 16a and 36a over a predetermined height. The vertical dimension of the engaging grooves 142 and 143 is set to correspond to the vertical dimension of the convex pieces 130 and 131. Further, the dimensions of the engaging grooves 142 and 143 in the front-rear direction are set so as to correspond to the dimensions in the front-rear direction of the convex pieces 130 and 131, that is, the thickness. As shown in FIG. 20, each of the engaging grooves 142 and 143 has a bottom surface that is parallel to the upper walls 17 and 37, that is, contact surfaces 142a and 143a, respectively. The contact surfaces 142a and 143a are surfaces with which the upper end portions 136 of the convex pieces 130 and 131 come into contact when the inner insertion member 181 is attached to the attachment portion 111. Further, one inner side surface of the engaging grooves 142 and 143 is continuous with the guide surfaces 21 and 41 of the locking projections 20 and 40.

  Further, as shown in FIG. 19, in this embodiment, the restriction pieces 22 and 42 formed between the front walls 13 and 33 and the helmet body 10 are the restriction pieces of the first embodiment (see FIG. 3). The side end portions 62a and 62b of the insertion plate 62 extend to the vicinity of the lower ends of the front walls 13 and 33 so that the side end portions 62a and 62b of the insertion plate 62 come into contact with the restricting pieces 22 and 42 over a wider range.

  Further, in the helmet body 10, a pair of convex portions 146 that suppress the movement of the outer insertion member 51 (particularly the mounting plate 52) toward the rear (outside of the helmet body 10) above the upper walls 17 and 37. 147 protrudes. The convex portions 146 and 147 are spaced apart from each other at a predetermined interval so as to correspond to the guide walls 63 and 64 of the outer insertion member 51, respectively, and the outer insertion member 51 is attached to the attachment portion 111. Sometimes it is provided at a position where it abuts against the guide walls 63 and 64 respectively.

  Next, with reference to FIGS. 21 and 22, attachment of the inner insertion member 181 to the attachment portion 111 will be described. FIG. 21 is a front view of the inner insertion member 181 and the attachment portion 111 according to the second embodiment of the present invention, and the outer insertion member 51 is omitted in order to clarify the relationship between them. 22 is a cross-sectional view of the inner insertion member 181 and the attachment portion 111 taken along line AA in FIG.

  First, the outer insertion member 51 is attached to the attachment portion 111 as in the first embodiment. Next, the inner insertion member 181 is inserted into the outer insertion member 51 until the upper end 82 g contacts the stopper piece 65 of the outer insertion member 51. At this time, the convex pieces 130 and 131 are accommodated in the engaging grooves 142 and 143 of the mounting portion 111, and the upper end portions 136 of the convex pieces 130 and 131 abut against the contact surfaces 142 a and 143 a of the engaging grooves 142 and 143. Touch.

  As described above, according to the present embodiment, the engagement grooves 142 and 143 are formed in the attachment portion 111, and the protruding pieces 130 and 131 are protruded from the inner insertion member 181, so that the inner insertion member 181 is attached. Since the convex pieces 130 and 131 engage with the engaging grooves 142 and 143 when attached to the portion 111, the inner insertion member 181 is restrained from moving forward and backward and upward. Therefore, the inner insertion member 181 and thus the ear chin string 7 can be reliably held on the mounting portion 111, that is, the helmet body 10.

  Further, according to the present embodiment, the protrusions 138 and 139 are provided on the upper end 82 g of the inner insertion member 181, so that when the inner insertion member 181 is attached to the outer insertion member 51, the inner difference is increased. The movement of the insertion member 181 in the left-right direction can be suppressed.

  In addition, according to the present embodiment, the restriction pieces 22 and 42 are extended to the vicinity of the lower ends of the front walls 13 and 33, so that the side end portions 62 a and 62 b of the insertion plate 62 are more extensively restricted. Abut. Therefore, when the interior body locking device 50 is attached to the attachment portion 111, the movement of the outer insertion member 51 and thus the inner insertion member 181 in the left-right direction can be suppressed.

  Furthermore, when the interior body locking device 50 is attached to the attachment portion 111 by projecting the pair of convex portions 146 and 147 on the helmet body 10, the outer insertion member 51 and thus the inner insertion member 181. Movement to the outside of the helmet body 10 can be suppressed.

  Next, a third embodiment of the interior body locking device 50 according to the present invention will be described with reference to FIGS. 23 and 24 are front views of the outer insertion member 151 of the present embodiment. FIG. 23 shows a state before the operation pieces 77 and 78 are operated, and FIG. 24 shows the operation pieces 77 and 78. The state at the time of the operation is indicated by a solid line, and the state before the operation is indicated by a broken line.

  The outer insertion member 151 of the present embodiment is basically the same configuration as the outer insertion member 51 of the first embodiment, and as shown in FIG. 23, a mounting plate 52 and an insertion plate 62 are provided. Have. The insertion plate 62 has an upper end 62c and a lower end 62d along the long side, and a pair of side end portions 62a and 62b along the short side. Each side end 62a, 62b has a stepped shape, and the lower end 62d side is one step lower than the upper end 62c side. For this reason, the width of the insertion plate 62 is relatively narrower on the lower end 62d side than on the upper end 62c side. A pair of elastic locking members 66 and 67 including locking rods 68 and 69 and locking rods 68 and 69 are provided on the rear surface of the insertion plate 62. The operating rods 70 and 71 provided at the lower ends of the locking rods 68 and 69 are provided substantially in parallel with the lower end 62d, and extend outward so as to partially cover the lower end 62d.

  Blocking pieces 165a and 165b project from both ends of the lower end 62d (the longitudinal edge of the outer insertion member 151). The blocking pieces 165a and 165b protrude from the lower end 62d so as to come into contact with the operation pieces 77 and 78 when the operation pieces 77 and 78 are operated, and the inner side exceeding the predetermined amount of the operation pieces 77 and 78 (arrow A in FIG. 24). , B direction). The outer surfaces 152 and 153 of the blocking pieces 165a and 165b are respectively continuous with the narrow side end portions 62a and 62b on the lower end 62d side, and are orthogonal to the lower end 62d. On the other hand, the outer and inner side surfaces 154 and 155 of the blocking pieces 165a and 165b are inclined at a predetermined angle with respect to the outer surfaces 152 and 153. Therefore, the blocking pieces 165a and 165b are directed toward the tips 156 and 157. Tapered. As shown in FIG. 23, in the state before the operation pieces 77 and 78 are operated, the respective blocking pieces 165a and 165b are separated from the knobs 77a and 78a at a predetermined interval.

  The blocking pieces 165a and 165b of the present embodiment are relatively longer from the lower end 62d than the blocking pieces 65a and 65b (see FIGS. 5 and 17) of the first embodiment. The lengths of the blocking pieces 165a and 165b are set such that the operating pieces 77 and 78 (the knobs 77a and 78a) do not get over the blocking pieces 165a and 165b when the operating pieces 77 and 78 are operated. Specifically, as shown in FIGS. 23 and 24, in both the state before and during the operation of the operation pieces 77 and 78, the lower end side including the tips 156 and 157 of the operation pieces 77 and 78 is the operation rods 70 and 71. The lengths of the blocking pieces 165a and 165b are set so as to protrude from the lower end surfaces 158 and 159 of the knobs 77a and 78a of the operation pieces 77 and 78, respectively.

  As described above, according to the present embodiment, the blocking pieces 165a and 165b are extended in the longitudinal direction, so that the entire inner side surfaces of the knobs 77a and 78a are not in the blocking pieces 165a and 165b when the operating pieces 77 and 78 are operated. Abuts on the outer side surfaces 152 and 153. Accordingly, it is possible to suppress the operation pieces 77 and 78 (the knobs 77a and 78a) from moving over the blocking pieces 165a and 165b to the inside. In addition, the outer side insertion member 151 can be used with the inner side insertion member 81 and the attachment part 11 of 1st Example, or the inner side insertion member 181 and the attachment part 111 of 2nd Example.

  As mentioned above, although one Example of this invention was described, this invention is not restricted to the said Example, A various change is possible. In the second embodiment shown in FIGS. 18 to 22, the projecting pieces 130 and 131 are provided on the inner insertion member 181 and the engaging grooves 142 and 143 are provided on the attachment portion 111. However, the present invention is not limited to this. Alternatively, the engagement grooves 142 and 143 may be provided in the inner insertion member 181, and the convex pieces 130 and 131 may be provided in the attachment portion 111.

  INDUSTRIAL APPLICATION This invention can be used for the use which attaches / detaches interior bodies, such as a hammock and an ear chin string, to a helmet main body.

DESCRIPTION OF SYMBOLS 3 Interior body 10 Helmet main body 11,111 Attachment part 12,32 Guide part 20,40 Locking convex part 25 Locking protrusion 50 Inner body locking device 51,151 Outer insertion member (1st insertion piece)
65a, 65b Blocking piece 66, 67 Elastic locking member 72, 73 Locking claw (locking part)
75,76 Lock release protrusion (lock release part)
77, 78 Operation piece (operation part)
81,181 Inner insertion member (second insertion piece)
91 Elastic locking piece 130, 131 Convex piece (first engaging portion)
142, 143 engagement groove (second engagement portion)
165a, 165b blocking piece

Claims (6)

A helmet interior body locking device for mounting an interior body on a helmet body,
An outer insertion member for attaching a hammock;
An inner insertion member for mounting an ear chin string, disposed inside the outer insertion member,
The outer insertion member has a pair of elastic locking members,
The pair of elastic locking members are:
A pair of locking portions locked to the pair of locking projections by inserting the outer insertion member between a pair of locking projections formed on the inner surface near the edge of the helmet body;
A pair of operation portions for releasing the locking by moving the pair of locking portions from the locking position of the pair of locking projections to the non-locking position against the elasticity of the material; and
When the inner insertion member is disposed inside the outer insertion member locked to the pair of locking projections of the helmet body via the pair of locking portions, It has an elastic locking piece locked to a locking projection formed on the inner surface near the edge,
The pair of elastic locking members are moved from the locking position of the locking protrusion to the non-locking position against the elasticity by operating the pair of operation portions of the outer insertion member. An interior locking device for a helmet, wherein an unlocking portion for releasing the locking is formed. On both sides of the elastic locking piece of the inner insertion member, an inclined guide surface with which the locking release portion abuts is formed.
The inclined guide surface is pressed by the locking release portion by the operation of the pair of operating portions, moves the elastic locking piece from the locking position to the non-locking position, and the inner insertion 2. The helmet interior locking device according to claim 1, wherein the member is formed in a shape that moves the member in a direction of being pulled out from the outer insertion member. On both sides of the inner insertion member, contact edges with which the pair of operation portions contact are formed,
The abutment edge is formed in a shape that abuts on the operation portion by the operation of the pair of operation portions and moves the inner insertion member in a direction of pulling out from the outer insertion member. The helmet interior body locking device according to claim 1 or 2. A pair of first engaging portions are provided on the outer edge of the inner insertion member,
The 2nd engaging part which each engages with the said 1st engaging part is each provided along a pair of said latching convex part, The Claim 1 characterized by the above-mentioned. Helmet interior locking device. The first engagement portion is a convex piece protruding outward from the outer edge of the inner insertion member,
5. The helmet interior body locking device according to claim 4, wherein the second engagement portion includes an engagement groove for receiving the convex piece.   The said outer side insertion member further has a pair of blocking piece which protrudes from the longitudinal direction edge of the said outer side insertion member so that it may contact | abut to the said operation part at the time of operation of the said operation part. The helmet body interior locking device according to any one of?