JP2017133124A - Hammock for safety cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hammock for a safety cap capable of simply and reliably securing a sufficient impact absorption capacity while serving as an industrial safety cap, when an impact absorbing liner is removed.SOLUTION: Front fragile parts 710 and 720 for allowing stretching are formed for a pair of front split legs 71A and 72A sandwiching the forehead, respectively. Rear fragile parts 730 and 740 for allowing stretching are formed for a pair of rear split legs 73A and 74A for sandwiching the back part of the head, respectively.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a hammock for a safety cap that is provided inside a cap body of an industrial safety cap and contacts a human head.

  Industrial safety caps stipulated by Japanese Industrial Standards include a hard cap body and a wearing body made of a hammock, headband, ring string, etc. in contact with the human head. Further, in this type of safety cap, an impact absorbing liner is attached to the inner surface of the cap body.

  The impact absorbing liner is a part other than the wearing body inserted into the cap body in order to absorb the kinetic energy of the impact transmitted to the wearer's head when impact energy is applied to the cap body. The impact absorbing liner is made of foamed polystyrene or the like and covers most of the inner surface of the cap body. In this way, even if the wearer falls or falls due to a fall, the shock absorbing liner will properly absorb the impact force at that time to protect the human head regardless of the impact from either the frontal head or the back of the head (See, for example, Patent Document 1).

  However, if the shock absorbing liner is provided between the cap body and the wearing body, the gap between the cap body and the human head becomes small, so the air permeability inside the cap body is poor, and the shock absorbing liner Heat dissipation is also hindered. For this reason, there is an inconvenience that heat build-up and stuffiness are generated inside the cap body and comfort at the time of wearing is impaired.

  Therefore, in order to ensure air permeability and heat dissipation, it is conceivable to remove the shock absorbing liner from the inner surface of the cap body. However, when the shock absorbing liner is removed, the impact force can be reduced by a hammock when a fallen object collides from the position directly above the cap body, but it is received from a direction other than the top of the head when the wearer falls or falls. The impact force can hardly be absorbed, and there is a disadvantage that sufficient protection performance during a fall / fall as an industrial safety cap cannot be obtained.

  On the other hand, in safety caps before the provision of industrial safety caps according to Japanese Industrial Standards, no shock absorbing liner was provided inside the cap body, and the outer peripheral surface of the headband constituting the wearing body (the inner surface of the cap body) There are those provided with a plurality of shock-absorbing members on the surface (for example, see Patent Document 2), but the protection performance at the time of falling and falling required as an industrial safety cap cannot be obtained.

JP-A-8-311713 Japanese Utility Model Publication No. 33-1240 Japanese Patent No. 5591984

  Here, the present inventor and the applicant of the present application, as a pioneer who has been advancing research and development of industrial safety hats quickly, are repeating earnest test research of industrial safety hats with the impact absorbing liner removed (for example, patent documents) 3), when the shock absorbing liner is removed, the inventors have come to the knowledge that impact stress concentrates on a specific part of the hammock.

  The present invention is based on such knowledge, and it is intended to provide a safety hat hammock that can easily and reliably ensure sufficient shock absorption capability as an industrial safety hat when the impact absorption liner is removed. Objective.

The safety hat hammock of the first invention is
A hammock provided on the inner side of the cap body of an industrial safety cap and in contact with the human head, extending radially from the top of the cap body with a predetermined gap with respect to the inner surface of the cap body, and having a lower end portion on the cap body It has a plurality of legs that are detachably connected, and an annular headband that is attached to the outer periphery of the human head is disposed at the inner lower part of the legs.
A pair of front legs that are two front legs sandwiching the frontal portion of the human head;
A pair of rear legs that are two rear legs sandwiching the back of the human head,
Each of the pair of front legs is formed with a front fragile portion allowing extension, and each of the pair of rear legs is formed with a rear fragile portion allowing extension.

  According to the hammock for safety hats of the first invention, the present inventor and the applicant of the present invention, who are pioneers of industrial safety hats, applied shocks to the site on the frontal side while repeating earnest test research to remove the shock absorbing liner. As a result, when the human head is pressed forward, the entire hammock moves forward, and at the same time, it has been found that impact stress is concentrated on the rear leg.

  Similarly, when an impact is applied to the occipital region, the person's head is pushed backward, moving the entire hammock backward, and at the same time, the knowledge that impact stress concentrates on the front leg is reached. It was.

  Based on this knowledge, the hammock for safety caps of the first invention forms a rear weak portion that allows stretching in each of the pair of rear legs, so that the rear weak portion impacts against the frontal impact. The film can be stretched so as to absorb the absorption stress and exhibit a surprising shock absorbing ability.

  Similarly, by forming a front fragile portion that allows stretching in each of the pair of front legs, the front fragile portion is stretched so as to absorb shock absorbing stress with respect to the impact on the back of the head, and surprising shock Exhibits absorption capacity.

  Thus, the hammock for safety caps according to the first aspect of the invention can easily and reliably ensure a sufficient shock absorbing capability as an industrial safety cap.

The safety hat hammock of the second invention is the first invention,
The front weak portion is made of a synthetic resin that is whitened by stretching of each of the pair of front legs, and the rear weak portion is made of a synthetic resin that is whitened by stretching of each of the pair of rear legs. Features.

  According to the hammock for a safety cap of the second invention, the front weak part and the rear weak part that allow extension are specifically realized by using a synthetic resin that whitens the front weak part and the rear weak part by extending the leg part. can do.

  Furthermore, since each weak part which absorbed the impact is whitened, the absorption state of the impact can be visually confirmed, and an indication of the replacement of the hammock can be presented.

  Thus, according to the hammock for safety hats of the second invention, it is possible to make the shock absorption state visible while ensuring a sufficient shock absorption capability as an industrial safety hat easily and reliably.

The safety hat hammock of the third invention is the first or second invention,
The front fragile portion is allowed to break by stretching each of the pair of front leg portions, and the rear fragile portion is allowed to break by stretching each of the pair of rear leg portions.

  According to the hammock for a safety cap of the third invention, the front weak part and the rear weak part allowing the extension are specifically realized by allowing the front weak part and the rear weak part to be broken by extending the leg part. Can do.

  Furthermore, since each weak part which absorbed the impact is broken, the absorption state of the impact can be confirmed by visual observation, and an indication of the replacement of the hammock can be presented.

  In addition, in addition to making the front weak part and the rear weak part a synthetic resin that is whitened by stretching the leg part, if further breakage is allowed, the impact absorption state is visually confirmed in two stages: whitening and breakage In addition, it is possible to actively promote replacement of the hammock by breaking.

  Thus, according to the hammock for safety caps of the third aspect of the present invention, it is possible to make the shock absorbing state visible while ensuring a sufficient shock absorbing capability as an industrial safety cap easily and reliably.

The hammock for safety hat of the fourth invention is any one of the first to third inventions,
The plurality of leg portions are connected at any one of four locations, front left and right and rear left and right, with a cap body connecting portion whose lower end portion is detachably connected to the cap body, and from the four cap body connecting portions. It is characterized by branching.

  According to the safety hat hammock of the fourth aspect of the invention, when the cap body connecting portion to which the leg portion and the cap body are connected is four places on the front left and right and rear left and right (so-called four-leg hammock), the cap body connecting portion. Is limited to four places.

  Here, according to the earnest test research of the present inventor and the present applicant, when the cap body connecting portion is limited to four locations, when an impact is applied to the frontal region, the hammock It came to the knowledge that the impact stress load to the leg part on the back side becomes conspicuous by the movement to the front of the whole.

  Similarly, when the cap body connecting portion is limited to four places, when an impact is applied to the occipital region, the movement of the entire hammock to the rear causes a marked shift to the front leg. It came to the knowledge that the impact stress load of the material became obvious.

  The hammock for a safety cap of the fourth invention is based on such knowledge, and when the cap body connecting portion has four positions on the front left and right and rear left and right (so-called four-leg hammock), a plurality of leg portions are arranged at the four positions. By branching from the cap body connecting part, it is possible to concentrate the impact stress load particularly on the pair of front leg parts and rear leg parts among the branched leg parts.

  Then, the cap body connecting portion is formed by forming a front weak portion and a rear weak portion that allow stretching in each of the pair of front legs and rear legs among the branched legs where the impact stress load is concentrated. Even in the case of four places on the front left and right and rear left and right (so-called four-leg hammocks), it is possible to exhibit a surprising shock absorbing ability.

  As described above, the safety hat hammock according to the fourth aspect of the present invention has a shock absorbing capacity that is sufficient as an industrial safety hat even when the cap body connecting portion has four positions (front and rear, left and right) (so-called four-leg hammock). And it can be secured securely.

Explanatory perspective view which shows the attachment state of the hammock of embodiment of this invention. The top view of the unfolded state of the hammock of FIG. The explanatory perspective view which shows the state which provided the impact-absorbing part in the hammock of FIG. The top view of the unfolded state of the hammock of FIG. Explanatory drawing explaining the function of the hammock of this embodiment. The top view of the unfolding state which shows the example of a change of the hammock of this embodiment.

  An embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the industrial safety cap 1 includes a hard cap body 2 (indicated by phantom lines in the figure) and a wearing body 3 provided inside the cap body 2 and in contact with the human head. The wearing body 3 is composed of a hammock 4, a headband 5, and a ring string (such as a chin strap) (not shown).

  The hammock 4 is integrally formed by injection molding using a synthetic resin (for example, a polyolefin-based synthetic resin) as a material, and forms a predetermined gap between the human head and the cap body 2 in contact with the human head.

  More specifically, the predetermined gap between the cap body 2 and the cap body 2 is large on the parietal side so as to prevent the penetration from touching the human head, and the outer circumference of the human head is enlarged from the parietal side. As a result, the gap is formed so as to become gradually smaller.

  The headband 5 is formed of the same material as the hammock 4 and surrounds the human head and is fixed to the human head. On the rear head side of the headband 5, size adjusting means 6 for adjusting the circumference according to the size of the human head is provided.

  Next, with reference to FIG. 2, the structure of the hammock 4 which is embodiment of this invention is explained in full detail.

  The hammock 4 includes a plurality of leg portions 7 that extend radially from the top of the head and an annular leg connecting portion 8 that integrally connects the upper ends of the leg portions 7. At the lower end of each leg portion 7, a fitting locking portion 9 (cap body of the present invention) is detachably fitted and locked to a fitting receiving portion (not shown) provided on the inner surface of the lower end portion of the cap body 2. (Corresponding to the connecting portion) is provided integrally.

  In the present embodiment, the upper ends of the four leg portions 7 are connected to the leg connecting portion 8, and the lower ends are connected to four fitting receiving portions via the fitting locking portions 9. Each leg portion 7 is branched at the upper end side and the lower end side, and each leg portion 7 is divided into two to form eight divided leg portions 71A, 71B, 72A, 72B, 73A, 73B, 74A, 74B. ing.

  As shown in FIG. 1, each leg portion 7 (divided leg portions 71 </ b> A to 74 </ b> B) is curved to correspond to the human head as shown in FIG. 1. 2 (a state before assembly to the cap body 2 or a state where the cap body 2 is removed from the cap body 2 by replacement or the like) as shown in FIG.

  Front weakened portions 710 and 720 that allow stretching are formed in each of the pair of front divided leg portions 71A and 72A that are two divided leg portions sandwiching the forehead. The front weakened portions 710 and 720 are formed by cutting out the widths of the front divided leg portions 71A and 72A, thereby partially enhancing the stretchability of the synthetic resin material constituting the hammock 4. Further, the notch amounts of the front weakened portions 710 and 720 are designed to allow breakage when the stretching exceeds a certain level.

  Moreover, the synthetic resin material is made of a synthetic resin (for example, polyethylene) that is whitened by stretching the front fragile portions 710 and 720, so that the front fragile portions 710 and 720 that have absorbed the shock are whitened, and the shock absorption state is visually observed. Can be confirmed.

  The split leg portion 71B branched from the front split leg portion 71A is formed with a grip portion 711 that is notched so as to narrow the width of the split leg portion 71B at a position symmetrical to the front weakened portion 710. In addition, the split leg portion 72B branched from the front split leg portion 72A is formed with a grip portion 721 that is notched so as to narrow the width of the split leg portion 72B at a position symmetrical to the front weakened portion 720.

  On the other hand, rear fragile portions 730 and 740 that allow stretching are formed in each of the pair of rear divided leg portions 73A and 74A that are two divided leg portions sandwiching the rear head. The rear fragile portions 730 and 740 are partially cut to reduce the width of the rear divided leg portions 73A and 74A, thereby partially improving the stretchability of the synthetic resin material constituting the hammock 4. Furthermore, the notch amounts of the rear weakened portions 730 and 740 are designed so as to be allowed to break when the stretching exceeds a certain level.

  Moreover, the synthetic resin material is made of a synthetic resin (for example, polyethylene) that is whitened by stretching the rear fragile portions 730 and 740, so that the rear fragile portions 730 and 740 that have absorbed the shock are whitened, and the shock absorption state is visually observed. Can be confirmed.

  The split leg portion 73B branched from the rear split leg portion 73A is formed with a gripping portion 731 cut out so as to narrow the width of the split leg portion 73B at a position symmetrical to the rear weakened portion 730. Further, the split leg portion 74B branched from the rear split leg portion 74A is formed with a gripping portion 741 that is notched so as to narrow the width of the split leg portion 74B at a position symmetrical to the rear weakened portion 740.

  Moreover, the division | segmentation leg parts 71A-74B are provided with the protrusion 31 which protrudes toward the inner surface of a cap body, as shown in FIG. 1 and FIG. The protrusion 31 has a protrusion amount corresponding to the gap between the split leg portions 71 </ b> A to 74 </ b> B and the inner surface of the cap body 2. Furthermore, the protrusion 31 is formed in a cylindrical shape and has an ability to absorb an impact from the outside of the cap body 2 by deformation such as crushing.

  By providing the projections 31 on the divided leg portions 71A to 74B, the projection 31 abuts against the inner surface of the cap body 2 so that a sufficient space is secured between the leg portion 7 and the inner surface of the cap body 2. Can be maintained. Thereby, contact with the split leg portions 71A to 74B and the inner surface of the cap body 2 due to impact load can be prevented, and the split leg portions 71A to 74B (particularly, the front weak portions 710 and 720 and the rear weak portions 730 and 740). Can sufficiently exert the impact relaxation action of the. The details of the impact mitigating action of the front weak parts 710 and 720 and the rear weak parts 730 and 740 will be described later with reference to FIG.

  Further, since the protrusions 31 of the leg portions 7 can reliably maintain a state in which a gap is formed between the human head in contact with the hammock 4 and the inner surface of the cap body 2, the air permeability inside the cap body 2 can be maintained. Can be secured sufficiently. Furthermore, since the projection 31 itself has an ability to absorb an impact, the impact transmitted from the leg portion 7 to the human head via the projection 31 can be reduced.

  The hammock 4 and the headband 5 are formed by stepping the headband 5 in a stepwise manner with locking protrusions that project from the branch portion on the lower end side of the leg portion 7 toward the headband 5 side. Engaged with and connected to the slit portion.

  Next, with reference to FIG. 3 and FIG. 4, the structure of the hammock which provided the impact-absorbing part in the hammock of the said embodiment is demonstrated. In addition, about the same structure as the said embodiment, the same number is attached | subjected and the description is abbreviate | omitted.

  Between the pair of front split legs 71A and 72A, which are two split legs sandwiching the frontal head, a front suspension part 11 is provided so as to straddle between them, and the front suspension part 11 hangs down on its lower edge side. A front shock absorber 12 is provided so as to be supported. As shown in FIG. 3, the front impact absorbing portion 12 has a shape that comes into contact with the inner surface of the cap body 2. Details of the configuration of the front impact absorbing portion 12 will be described later.

  On the other hand, between the pair of rear split legs 73A and 74A, which are two split legs sandwiching the back of the head, a rear suspension part 13 is provided to straddle between them, and the rear suspension part 13 hangs down on its lower edge side. A rear impact absorbing portion 14 is provided so as to be supported. As shown in FIG. 3, the rear impact absorbing portion 14 has a shape that comes into contact with the inner surface of the cap body 2. The configuration of the rear shock absorber 14 will be described later in detail.

  Here, the front suspension part 11 is formed in a band shape, one end is integrally connected to one front division leg part 72A, and the other end extends toward the other front division leg part 71A. The other end of the front suspension portion 11 is formed with a locking hole 11B that is detachably locked to a locking claw 11A formed on the other front divided leg portion 71A.

  By locking the locking hole 11B of the front suspension part 11 to the locking claw 11A, as shown in FIG. 3, the front suspension part 11 straddles the interval part formed between the front split leg parts 71A, 72A, Provided above the headband 5.

  Similarly, the rear suspension part 13 is also formed in a band shape, and one end thereof is integrally connected to one rear division leg part 73A, and the other end extends toward the other rear division leg part 74A. The other end of the rear suspension part 13 is formed with a locking hole 13B that is detachably locked to a locking claw 13A formed on the other rear divided leg part 74A.

  By locking the locking hole 13B of the rear suspension part 13 with the locking claw 13A, the rear suspension part 13 straddles the interval portion formed between the rear divided leg parts 73A and 74A, and above the headband 5. Provided.

  When the locking hole 11B of the front suspension part 11 is removed from the locking claw 11A and the locking hole 13B of the rear suspension part 13 is removed from the locking claw 13A, the hammock 4 becomes flat as shown in FIG. be able to. Thereby, when the hammock 4 is removed from the cap body 2, it does not become bulky when stored as a flat shape. Further, integral molding by injection molding is possible with one end of the front suspension portion 11 and the rear suspension portion 13 coupled to one of the coupling leg portions 72A and 73A.

  Next, side impact absorbing parts 16, 16 are provided at the lower ends of the extending parts 15, 15 extending downward from the leg connecting part 8 on the left and right side of the cap body 2. The extending portions 15 and 15 extend between the two divided leg portions 71B and 73B and 72B and 74B on the temporal region side, and as shown in FIG. It is formed in a shape that abuts 16 (in this embodiment, a shape that is smoothly bent). In addition, about the structure of the side impact absorption part 16, a detail is mentioned later.

  Next, the configurations of the front impact absorbing portion 12, the rear impact absorbing portion 14, and the side impact absorbing portion 16 that have been described later will be described.

  As shown in FIG. 4, the front shock absorber 12, the rear shock absorber 14, and the side shock absorber 16 have a plurality of cylindrical structures 21 disposed with a space through which air can pass through each other, It is comprised by the plate-shaped base 22 which connects the bottom part of each cylindrical structure part 21 mutually.

  The cylindrical structure portion 21 is formed in a polygonal cylindrical shape (in this embodiment, a hexagonal cylindrical shape), and has an ability to absorb an impact force by being crushed in the axial direction. As shown in FIG. 3, the front shock absorber 12, the rear shock absorber 14, and the side shock absorber 16 contact the cap body 2 in a posture in which the axis of the cylindrical structure portion 21 faces the inner surface of the cap body 2. Provided in contact.

  By disposing the front shock absorber 12 on the front head side and the rear shock absorber 14 on the back head side, the industrial safety cap 1 is an industrial safety cap (“Nippon Kogyo” defined in Japanese Industrial Standards). The safety cap for falling is sufficient as a safety cap for falling / falling in the standard T811: 2000 Annex 2 ”.

  Next, with reference to FIG. 5, the impact mitigating action by the front fragile portions 710 and 720 and the rear fragile portions 730 and 740 will be described later.

  First, from the normal state shown in FIG. 5A, when an impact is applied to the frontal region, the human head is pushed forward, so that the entire hammock 4 is moved forward as shown in FIG. 5B. At the same time, impact stress concentrates on the pair of rear split legs 73A and 74A.

  At this time, since the rear fragile portions 730 and 740 that allow stretching are formed in each of the pair of rear divided leg portions 73A and 74A, On the other hand, in addition to the impact absorption by the front impact absorbing portion 12, the rear fragile portions 730 and 740 can be stretched so as to absorb the impact absorbing stress and exhibit a surprising impact absorbing capability.

  Similarly, when an impact is applied to the occipital region from the normal state shown in FIG. 5A, the entire head moves backward as shown in FIG. 5C by pressing the human head backward. At the same time, the impact stress concentrates on the pair of front split legs 71A and 72A.

  At this time, by forming front fragile portions 710 and 720 that allow stretching in each of the pair of front divided leg portions 71A and 72A (when there is the rear impact absorbing portion 14, against the impact on the back of the head) In addition to shock absorption by the rear shock absorbing portion 14, the front weakened portions 710 and 720 can be stretched so as to absorb shock absorbing stress and exhibit surprising shock absorbing ability.

  Thus, according to the hammock 4 of the present embodiment, it is possible to simply and reliably ensure a sufficient shock absorbing capacity as an industrial safety cap.

  Furthermore, by making the front weak parts 710 and 720 and the rear weak parts 730 and 740 white by stretching, the shock absorption state can be visually confirmed, and an indication of replacement of the hammock 4 is presented. be able to.

  In addition, in addition to making the front fragile portions 710 and 720 and the rear fragile portions 730 and 740 into synthetic resins that are whitened by stretching, in the case of allowing further breakage, the impact absorption state is determined in two stages of whitening and breakage. While confirming visually, replacement | exchange of the said hammock 4 can be actively encouraged by a fracture | rupture.

  As described above in detail, according to the hammock 4 of the present embodiment, it is possible to make the shock absorption state visible while ensuring a sufficient shock absorption capability as an industrial safety cap easily and reliably.

  In the present embodiment, each of the four leg portions 7 has an upper end coupled to the leg coupling portion 8 and a lower end coupled to four fitting receiving portions via the fitting locking portions 9. Although a so-called four-legged hammock has been described, the present invention is not limited to this.

  For example, as shown in FIG. 6, the leg portion 7 may be a so-called eight-leg hammock. In this case, the front fragile portions 710A and 710B cut out so as to reduce the width of the front legs 7A and 7B are formed, and the rear fragile portions 710C and 710D cut out so as to reduce the width of the rear legs 7C and 7D. Form.

  Thereby, in addition to the impact absorption by the front impact absorbing portion 12 for the impact on the frontal head side, the rear fragile portions 710C and 710D are stretched so as to absorb the impact absorbing stress and exhibit a surprising impact absorbing capability. In addition to the impact absorption by the rear impact absorbing portion 14 with respect to the impact on the back of the head, the front fragile portions 710A and 710B are stretched so as to absorb the impact absorbing stress and exhibit surprising shock absorbing ability. I can do it.

  Furthermore, in this embodiment, when the front suspension part 11 which straddles between these is provided between a pair of front division | segmentation leg parts 71A and 72A which pinches | interposes a front part, and the front impact absorption part 12 is provided in the front suspension part 11 However, the present invention is not limited to this. If the front impact absorbing portion 12 is provided between a pair of front split leg portions 71A and 72A sandwiching the frontal head, the front impact absorbing portion 12 extends downward from the leg connecting portion 8 like the side impact absorbing portion 16, for example. The front impact absorbing portion 12 may be provided at the lower end of the protruding portion, or the front impact absorbing portion 12 that is separate from the hammock 4 may be attached to the frontal portion of the cap body 2.

  Similarly, in this embodiment, between the pair of rear split legs 73A and 74A sandwiching the back of the head, the rear suspension part 13 straddling between these is provided, and the rear impact absorption part 14 is provided on the rear suspension part 13. Although described, the present invention is not limited to this. If the rear impact absorbing portion 14 is provided between the pair of rear divided leg portions 73A and 74A sandwiching the rear head, the rear impact absorbing portion 14 extends downward from the leg connecting portion 8 like the side impact absorbing portion 16, for example. The rear impact absorbing portion 14 may be provided at the lower end of the portion, and the rear impact absorbing portion 14 that is separate from the hammock 4 may be attached to the rear head portion of the cap body 2.

  Moreover, in this embodiment, although the cylindrical structure part 21 of the front impact absorption part 12, the rear impact absorption part 14, and the side impact absorption part 16 was made into the polygonal cylinder shape, the cylindrical structure part 21 is a polygonal cylinder shape. It is not limited, and may be cylindrical. Moreover, the quantity and size of the cylindrical structure part 21 can be set as appropriate.

  In the present embodiment, the example in which the front shock absorber 12, the rear shock absorber 14, and the side shock absorber 16 are provided in the hammock 4 is shown. Only the front shock absorber 12 and the rear shock absorber 14 may be provided. According to this, since a wider gap can be formed between the human head and the cap body 2, the comfort at the time of wearing can be further improved and the weight can be reduced.

  Further, in the present embodiment, an example is shown in which one end of the front suspension portion 11 is integrally connected to the front division leg portion 72A, but both ends of the front suspension portion 11 are both attached to and detached from the front division leg portions 71A and 72A. The front split legs 71A and 72A may be separated from each other.

  Similarly, an example in which one end of the rear suspension portion 13 is integrally connected to the rear division leg portion 73A has been shown. However, both ends of the rear suspension portion 13 are detachable from the rear division leg portions 73A and 74A. The leg portions 73A and 74A may be separated.

  DESCRIPTION OF SYMBOLS 1 ... Industrial safety cap, 2 ... Hat body, 4 ... Hammock, 5 ... Headband, 7 ... Leg part, 8 ... Leg part connection part, 9 ... Fitting latching part (cap body connection part), 11 ... Suspension part, 12 ... front shock absorption part, 13 ... rear suspension part, 14 ... rear shock absorption part, 15 ... extension part, 16 ... side impact absorption part, 71A, 72A ... front split leg part (leg part), 73A, 73A ... rear split leg (leg part), 710, 710A, 710B, 720 ... front weak part, 710C, 710D, 730, 740 ... rear weak part.

Claims (4)

A hammock provided on the inner side of the cap body of an industrial safety cap and in contact with the human head, extending radially from the top of the cap body with a predetermined gap with respect to the inner surface of the cap body, and having a lower end portion on the cap body It has a plurality of legs that are detachably connected, and an annular headband that is attached to the outer periphery of the human head is disposed at the inner lower part of the legs.
A pair of front legs that are two front legs sandwiching the frontal portion of the human head;
A pair of rear legs that are two rear legs sandwiching the back of the human head,
For the safety cap, wherein a front fragile portion allowing extension is formed on each of the pair of front legs, and a rear fragile portion allowing extension on each of the pair of rear legs. hammock. The safety hat hammock according to claim 1,
The front weak portion is made of a synthetic resin that is whitened by stretching of each of the pair of front legs, and the rear weak portion is made of a synthetic resin that is whitened by stretching of each of the pair of rear legs. A special hammock for safety hats. The safety hat hammock according to claim 1 or 2,
The front fragile portion allows breakage due to the respective stretching of the pair of front leg portions, and the rear fragile portion allows breakage due to the respective stretching of the pair of rear leg portions. Hammock for caps. The safety hat hammock according to any one of claims 1 to 3,
The plurality of leg portions are connected at any one of four locations, front left and right and rear left and right, with a cap body connecting portion whose lower end portion is detachably connected to the cap body, and from the four cap body connecting portions. Hammock for safety hats characterized by branching.