JP6348464B2 - Hammock connection structure for helmet - Google Patents

Description

  The present invention relates to a connection structure for a helmet hammock that is employed to connect a hammock to a helmet body of a helmet.

  A hammock that contacts the human head is attached to the inside of the helmet body. The hammock includes a plurality of legs that extend radially from the top of the head, and is fixed to the inside of the helmet body by connecting the distal ends of the legs of the hammock to the inner surface of the lower edge side of the hat body.

  Conventionally, as a structure for connecting a helmet body and a hammock, there is known a structure in which a latch provided at the tip of a leg portion of a hammock is latched on a receiving part provided on an inner surface of the hat body (patent) Reference 1).

JP 2001-262425 A (FIG. 2)

  By the way, the hammock needs to be firmly connected to the cap body so that the hammock is not inadvertently detached from the inside of the cap body. On the other hand, the hammock is intended to stabilize the wearing state of the helmet by contacting the human head inside the cap body, and to obtain an action of protecting the human head by absorbing the shock applied from the outside of the cap body. Therefore, replacement with a new one is performed periodically or when deterioration or abnormality occurs.

  However, in the connection structure shown in Patent Document 1, if the connection state is strengthened, there is a disadvantage that it is difficult to remove the latch from the receiving portion.

  In view of the above points, the present invention provides a helmet hammock connection structure that can not only reliably maintain the connection state of the hammock to the cap body, but also facilitate the removal of the hammock from the cap body. The purpose is to provide.

  In order to achieve such an object, the present invention provides a helmet hammock connecting structure for connecting a helmet body and a hammock that contacts a human head inside the cap body, and extends radially in the hammock. A latch provided at the tip of a plurality of legs, and a receiving part provided on the inner surface of the cap body for detachably latching the latch, wherein the receiving part of the cap body A pair of regulating protrusions that are arranged side by side at a predetermined distance in the circumferential direction of the inner surface and regulate movement of the latching device in the circumferential direction in the cap body when the latching device is latched; And an upward-facing locking surface that is disposed between the restricting convex portions and that locks the latch, and the latch slides between the restricting convex portions in the vertical direction. And when the sliding part is slid to a predetermined position above the sliding part, Characterized in that it comprises a locking pawl for locking the.

In order to achieve such an object, the present invention is a connection structure of a helmet hammock for connecting a cap body of a helmet and a hammock in contact with a human head inside the cap body,
A hook provided at the tip of a plurality of radially extending legs provided in the hammock, and a receiving portion provided on the inner surface of the cap body for detachably hooking the hook.
The receiving portion is arranged in parallel at a predetermined distance in the circumferential direction of the inner surface of the cap body, and when the latching device is latched, the latching device moves in the circumferential direction of the cap body. A pair of regulating projections, a latching projection disposed between the regulation projections, and an upward latch formed on the top surface of the latching projection to latch the latch A stop portion that extends downward from an inner edge of the locking surface and stops the hooking device at a predetermined upward position ,
The latch is detachably attached to the locking surface of the receiving portion when the sliding portion slides up and down between the regulating convex portions and slides up to a predetermined position by the sliding portion. A latching claw that latches to the stopper, and a sandwiching piece that sandwiches the stop portion,
The locking claw projecting toward the cap body is locked to the locking surface, and the clamping piece sandwiches the stop portion so that the cap body and the hammock are connected. To do.

  Furthermore, when the hammock is connected to the cap body, the restricting convex part of the receiving part restricts the movement of the latching tool, so that the relative movement between the receiving part and the latching tool is affected by the impact or the like. Even if a large force is applied in different directions, it is possible to prevent the latch from coming off from the receiving portion, and it is possible to reliably maintain the connection state of the hammock to the cap body.

  When removing the hammock from the cap body, the latching of the latching tool to the receiving portion by the latching claw is released. As a result, the sliding portion of the latching tool is slidable along the two restricting convex portions, and the hammock can be removed from the cap body by simply moving the latching device downward (opposite to the top of the cap body). Can be removed.

  Thus, according to the connection structure of the present invention, it is possible not only to reliably maintain the connection state of the hammock to the cap body, but also to easily remove the hammock from the cap body.

  Further, in the present invention, when the locking claw is locked to the locking surface of the receiving part, the locking tool comes into contact with the upper end of the restricting convex part of the receiving part. It is preferable to provide a pressing part that regulates the downward movement of the slab.

  According to this, when the latching claw of the latching device is in the latched state on the latching surface of the receiving portion, the pressing member further abuts on the upper end of the regulating convex portion and regulates the downward movement of the latching tool. Therefore, the latching state of the latching tool in the receiving portion is further strengthened, and the connection state of the hammock to the cap body can be more reliably maintained.

Explanatory drawing which shows the connection structure of the hammock to a cap body in the bottom view of the helmet of embodiment of this invention. The perspective view of the receiving part of this embodiment. The bottom view of the receiving part of this embodiment. The perspective view of the latching tool of this embodiment. Explanatory sectional drawing which shows the state which the 1st insertion part of the latch was inserted in the guide hole of a receiving part. Explanatory sectional drawing which shows the state which the 2nd insertion part of the latching tool inserted in the hole of the stop part of a receiving part.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a hammock 2 is attached inside a helmet body 1. The cap body 1 is made of a hard material. The hammock 2 constitutes a helmet wearing body together with a headband (not shown), contacts the human head inside the cap body 1, stabilizes the wearing state of the helmet, and absorbs and reduces the shock received by the cap body 1. Have the effect of protecting the human head.

  The hammock 2 includes a plurality of legs 3 that extend radially from the top of the head. A hook 4 is provided at the tip of each leg 3.

  The hammock 2 is formed by integral molding using a synthetic resin (for example, low-density polyethylene) as a material, whereby the leg portion 3 and the latch 4 are integrally formed. Note that the latching tool 4 may be separated and attached to the tip of the leg 3 by adhesion or the like.

  The hook 4 is connected to a receiving portion 5 provided on the inner surface of the cap body 1 to connect the hammock 2 to the inside of the cap body 1. A plurality (four in this embodiment) of receiving parts 5 are provided on the inner surface of the cap body 1.

  As shown in FIGS. 2 and 3, each receiving portion 5 includes a pair of protruding protruding projections 6 and a locking protruding portion 7 formed between the both protruding protruding portions 6.

  The restriction convex portion 6 is formed with a guide hole 8 penetrating in the vertical direction, and a guide groove 9 in which the opposite side surfaces of both restriction convex portions 6 are opened in a slit shape.

  The locking projection 7 has an upward locking surface 10 that locks the latch 4 and a stop 11 that stops the latch 4 at a predetermined upward position along the guide groove 9. Is formed. As shown in FIG. 3, the stop portion 11 is formed in a hole shape having an open bottom.

  The receiving portion 5 may be integrally formed with the cap body, and although not shown, a configuration may be adopted in which the cap body 1 is fixed through the cap body 1 as a separate body.

  As shown in FIGS. 4 and 5, the latch 4 is located between the pair of first insertion portions 12 inserted into the pair of guide holes 8 of the receiving portion 5 and both the first insertion portions 12. And a sliding portion 13 that slides between the restricting convex portions 6 of the receiving portion 5. Between the sliding part 13 and the 1st insertion part 12, the guide part 13a slidably guided by the up-down direction along the guide groove 9 is provided.

Further, as shown in FIGS. 4 and 6, the latching tool 4 includes a second insertion portion 14 (corresponding to a sandwiching piece of the present invention) that is inserted into the hole of the stop portion 11 of the receiving portion 5, a second An abutment portion 15 that is located on the outer periphery of the insertion portion 14 and abuts against the stop portion 11, and when the abutment portion 15 abuts against the stop portion 11, an engagement surface on the upper surface of the engagement protrusion 7 of the receiving portion 5 And when the locking claw 16 is locked to the locking surface 10, it comes into contact with the upper end of the restricting convex portion 6 of the receiving portion 5 to move the latch 4 downward. And a pressing portion 17 to be regulated.

  Referring to FIGS. 2 and 4, when hooking the latch 4 on the receiving portion 5, first, the guide hole 8 formed in the restricting convex portion 6 of the receiving portion 5 is inserted into the guide hole 8. 1 The insertion part 12 is inserted, and the latching tool 4 is moved upward (in a direction toward the top of the cap body 1) along the restriction convex part 6.

  As a result, when the guide portion 13a of the latching tool 4 is guided by the guide groove 9 of the receiving portion 5 and the sliding portion 13 slides upward between the two restricting convex portions 6, the stopping portion 11 of the receiving portion 5 is hooked. The second insertion portion 14 of the stopper 4 is inserted, and the abutting portion 15 is abutted against the stopping portion 11 to stop the movement of the latching device 4.

  Then, as shown in FIG. 6, the locking claw 16 of the latching tool 4 is locked to the locking surface 10 of the receiving part 5, and at the same time, as shown in FIG. 5, the pressing part 17 of the latching tool 4. Comes into contact with the upper end of the restricting convex portion 6 of the receiving portion 5. Thereby, the latching tool 4 will be in a latching state so that it may be pinched | interposed between a pair of control convex parts 6 of the receiving part 5. FIG.

  As described above, the cap body 1 and the hammock 2 can be easily connected by simply moving the latching tool 4 between the two restricting convex portions 6. Furthermore, since the restricting convex portion 6 of the receiving portion 5 restricts the movement of the latch 4, the latch 4 is moved along the circumferential direction of the cap body 1 due to an impact from the outside of the cap body 1. Even if a large force is applied to the cap body 1, the latch 4 is not detached from the receiving portion 5, and the connection state of the hammock 2 to the cap body 1 can be reliably maintained. And when removing the hammock 2 from the cap body 1, it is only necessary to release the contact of the pressing portion 17 from the upper end of the restricting convex portion 6 at the same time as the latching claw 16 of the latching device 4 is unlocked to the receiving portion 5. In the state where the guide portion 13a of the latch 4 is guided along the guide groove 9, the slide portion 13 can freely slide between the restricting convex portions 6, and the latch 4 is moved downward (the top of the cap body 1). The hammock 2 can be easily removed from the cap body 1 by moving in the opposite direction.

  In the present embodiment, the hammock 2 including the four legs 3 is described as an example, but the number of the legs 3 of the hammock 2 is not limited to this.

DESCRIPTION OF SYMBOLS 1 ... Cap body, 2 ... Hammock, 3 ... Leg part, 4 ... Stopper, 5 ... Receiving part, 6 ... Restriction convex part, 10 ... Locking surface, 13 ... Sliding part, 14 ... 2nd insertion part ( Sandwiching piece), 16 ... locking claw, 17 ... pressing part.

Claims (2)

A helmet hammock connecting structure for connecting a helmet cap and a hammock contacting the human head inside the cap,
A hook provided at the tip of a plurality of radially extending legs provided in the hammock, and a receiving portion provided on the inner surface of the cap body for detachably hooking the hook.
The receiving portion is arranged in parallel at a predetermined distance in the circumferential direction of the inner surface of the cap body, and when the latching device is latched, the latching device moves in the circumferential direction of the cap body. A pair of regulating projections, a latching projection disposed between the regulation projections, and an upward latch formed on the top surface of the latching projection to latch the latch A stop portion that extends downward from an inner edge of the locking surface and stops the hooking device at a predetermined upward position ,
The latch is detachably attached to the locking surface of the receiving portion when the sliding portion slides up and down between the regulating convex portions and slides up to a predetermined position by the sliding portion. A latching claw that latches to the stopper, and a sandwiching piece that sandwiches the stop portion,
The locking claw projecting toward the cap body is locked to the locking surface, and the clamping piece sandwiches the stop portion so that the cap body and the hammock are connected. Hammock connection structure for helmets.   When the locking claw is locked to the locking surface of the receiving portion, the locking device abuts against the upper end of the restricting convex portion of the receiving portion and restricts the downward movement of the locking device. The helmet hammock connection structure according to claim 1, further comprising a portion.