JP2017501312A - Foldable helmet - Google Patents

Abstract

[PROBLEMS] To easily unfold and fold a plurality of helmet fold pieces so that when not in use, the user can fold the helmet fold pieces in a sliding manner to significantly reduce the size. To provide a foldable helmet that is easy to carry and store and that can fully protect a user's head from a dangerous environment by wearing a complete helmet formed by unfolding the helmet when in use. A foldable helmet formed in a hat shape when a plurality of helmet fold pieces are rotatably connected to a common shaft and deployed in a staircase fashion, the plurality of helmet fold pieces being deployed. It is easy to slide along the circumferential direction of the inner peripheral surface of one helmet fold piece and the outer peripheral surface of the helmet fold piece adjacent to the inside so that the shape can be stably maintained when deployed. A foldable helmet characterized by including a slide-type connecting means for connecting to a helmet. [Selection] Figure 2

Description

  The present invention relates to a foldable helmet, and more particularly to a foldable helmet that can be folded and carried when not in use, and unfolded and used as a complete helmet when in use.

  In general, helmets are used to protect the wearer's head, and are used in various construction sites, such as construction industries, bicycles, motorcycles, leisure sports industries such as inline, military and defense industries in various countries, earthquakes, and disasters. It is widely used to protect the head in the disaster industry.

  As shown in FIG. 1, the helmet 2 according to the prior art is made of a metal material or a plastic material, and it is inconvenient to carry due to its heavy size and weight, and the user often does not carry the helmet.

  Thus, since the user does not carry the helmet, the user will work without wearing the helmet, so the user's head cannot be sufficiently protected at the work site, etc. There was a problem that a personnel accident occurred.

  Therefore, in the conventional technology, helmets that have increased portability by air injection etc. have been developed to facilitate portability, but in complex environments such as construction sites, when air escapes due to sharp objects, work There is a problem that it becomes impossible to protect the person's head and the production cost increases.

  The present invention has been proposed in order to solve the above-described problems. The purpose of the present invention is to reduce the size of the user by folding the helmet when not in use, making it easy to carry and store. It is an object of the present invention to provide a foldable helmet that can sufficiently protect the user's head in a dangerous environment by sometimes unfolding the helmet to form and wear a complete helmet.

  As a technical aspect for achieving the above object, the present invention provides a foldable helmet formed in a hat shape when a plurality of helmet fold pieces are rotatably connected to a common shaft and deployed stepwise. The plurality of helmet fold pieces are easy to deploy and the helmet fold pieces adjacent to the inner peripheral surface of the helmet fold piece and the inside thereof so as to stably maintain the form during deployment. There is provided a foldable helmet characterized by including sliding connection means for slidably connecting the outer peripheral surface of the outer peripheral surface along the circumferential direction.

  Preferably, the slide type connecting means includes a concave slide portion formed circumferentially on the inner peripheral surface of one helmet fold piece portion, and the concave slide on the outer peripheral surface of the helmet fold piece portion adjacent to the inside. A convex slide portion formed so as to be fitted to the portion.

  Preferably, in order to limit the rotation of the plurality of helmet fold pieces, one helmet fold piece is formed to close at least one end of both ends of the concave slide portion on the inner peripheral surface. Including stopper.

  More preferably, one helmet folded piece is a meridian on the inner peripheral surface in a portion where the helmet folded pieces overlap so as to prevent the inflow of rainwater by closing gaps between the deployed helmet folded pieces. A protrusion for preventing rainwater inflow is formed so as to protrude along the direction.

  More preferably, the rain water inflow preventing protrusion is fitted in the overlapping portion of the helmet folds so that the rain folds adjacent to the inside are formed in a groove shape along the meridian direction on the outer peripheral surface. An inflow preventing groove is provided.

  More preferably, the plurality of helmet folded pieces are tightened to the common shaft so that the developed helmet folded pieces are brought into close contact with each other and the rainwater inflow preventing protrusion and the rainwater inflow preventing groove are firmly coupled. Including coupling fastening means provided to be coupled in a fashion.

  More preferably, the first helmet folded piece and the last helmet folded piece overlap each other so that the deployed helmet folded pieces hold the hat shape, A first locking portion formed to protrude from the inner peripheral surface, and a second locking portion formed to protrude so that the last helmet folded piece is locked to the first locking portion on the outer peripheral surface; Prepare.

  More preferably, it includes a hair band attaching / detaching portion that is detachably provided on the inner peripheral surface of each helmet folded piece portion and a portion of the common shaft inside the developed helmet folded piece portions.

  According to such a foldable helmet according to the present invention, a plurality of helmet fold pieces can be easily unfolded and folded so that when not in use, the user folds the helmet fold pieces in a sliding manner. Can be significantly reduced, and is easy to carry and store, and when used, wear a complete helmet formed to fully protect the user's head in a dangerous environment There is an effect that can be.

FIG. 1 is a perspective view showing a conventional helmet. FIG. 2 is a perspective view showing a developed state of the folding helmet according to the present invention. FIG. 3A is a perspective view of a lower part of a cart that can be easily accommodated by a handle according to an embodiment of the present invention. FIG. 3b is a bottom view showing the unfolded state of the folding helmet according to the present invention. FIG. 4 is a perspective view showing a folded state of the folding helmet according to the present invention. FIG. 5a is a side view showing a first helmet fold piece of a foldable helmet according to the present invention. FIG. 5b is a rear view showing a first helmet fold piece of the foldable helmet according to the present invention. FIG. 6 a is a plan view showing a second helmet fold piece portion of the foldable helmet according to the present invention. FIG. 6 b is a front view showing a second helmet fold piece portion of the foldable helmet according to the present invention. FIG. 6c is a rear view showing a second helmet folded piece of the folding helmet according to the present invention. FIG. 7a is a front view showing a third helmet fold piece portion of the foldable helmet according to the present invention. FIG. 7b is a rear view showing a third helmet fold piece of the foldable helmet according to the present invention. FIG. 8a is a plan view showing a fourth helmet fold piece portion of the foldable helmet according to the present invention. FIG. 8 b is a front view showing a fourth helmet fold piece portion of the foldable helmet according to the present invention. FIG. 8c is a rear view showing the fourth helmet fold piece of the foldable helmet according to the present invention.

  Hereinafter, a folding helmet according to the present invention will be described in detail with reference to the accompanying drawings.

  2, 3a and 3b show the unfolded state of the folding helmet 1 according to the invention, and FIG. 4 shows the folded state of the folding helmet according to the invention. 5 to 8 show the first helmet folded piece 100, the second helmet folded piece 200, the third helmet folded piece 300, and the fourth helmet folded piece 400 that constitute the folding helmet according to the present invention. Show.

  The foldable helmet 1 according to the present invention is configured to include a plurality of helmet fold pieces 100, 200, 300, and 400 that are rotatably connected to a common shaft and formed in a hat shape when deployed in a stepped manner. Can do.

  First, the foldable helmet 1 has a substantially hemispherical shape, and the helmet fold pieces 100, 200, 300, and 400 are roughly similar to a portion defined by a line connected from the hemispherical ceiling to the equator along the meridian direction. It has a form.

  That is, the helmet fold pieces 100, 200, 300, and 400 are divided into circles when viewed from above, and the cross section in the meridian direction is an arc-shaped curve. In this invention, as shown in figure, it is comprised by the four helmet fold piece parts 100, 200, 300, and 400, and has a form corresponding to a quarter of a hemisphere, respectively.

  However, the number and relative size of such helmet fold pieces are not limited to the illustrated form. That is, of course, it can be formed differently from the illustrated case if necessary. For example, in the case of sports helmets for bicycle and motorcycle drivers, the helmet can be composed of two helmet folds having a hemisphere divided in half. As described above, the present invention includes various modifications of the helmet folded piece.

  And such a helmet fold piece part 100,200,300,400 has a radius so small that it is a helmet fold piece part close | similar to the center of a hemisphere so that it may become a structure laminated | stacked when it folds. Also, the helmet folds 100, 200, 300, and 400 can be coupled to each other by, for example, a hinge type or a bolt type so as to be rotatable about a common shaft passing through the ceiling of the hemisphere.

  At this time, each helmet folded piece 100, 200, 300, 400 is preferably formed of a reinforced plastic or metal material that is a high-rigidity material while being lightweight. Further, a special material film (not shown) is additionally attached to at least one of the inner peripheral surfaces 110, 210, 310, 410 and the outer peripheral surfaces 120, 220, 320, 420 of the respective helmet folded pieces. Can be done. For example, in the case of a military defense helmet, a film of bulletproof material can be attached to the outer peripheral surface of each helmet fold piece in order to further protect the head from bullets.

  Specifically, the folding helmet 1 according to the present invention is in a folded state as shown in FIG. 4 when not in use. Specifically, the fourth helmet folded piece 400, the third helmet folded piece 300, and the second helmet folded piece 200 are replaced with the third helmet folded piece 300, the second helmet folded piece 200, respectively, from the unfolded state as shown in FIG. 2. It will be in the state folded by rotating around a common axis so that it may be located just under the helmet folded piece part 200 and the 1st helmet folded piece part 100. FIG. At this time, the helmet folded piece part has a structure in which the first helmet folded piece part 100, the second helmet folded piece part 200, the third helmet folded piece part 300, and the fourth helmet folded piece part 400 are laminated from the outside to the inside. .

  On the other hand, the folding helmet 1 according to the present invention is in an unfolded state as shown in FIG. Specifically, from the folded state as shown in FIG. 4, the fourth helmet folded piece 400, the third helmet folded piece 300, and the second helmet folded piece 200 are respectively connected to the third helmet folded piece 300 and the second helmet folded piece 300. It will be in the state developed by rotating around a common axis so that it may escape from helmet folded piece part 200 and 1st helmet folded piece part 100. At this time, the first helmet folded piece 100, the second helmet folded piece 200, the third helmet folded piece 300, and the fourth helmet folded piece 400 are developed stepwise to form a complete helmet. Form a helmet.

  At this time, in the foldable helmet 1 according to the present invention, the counterclockwise direction indicates the unfolded direction of the helmet fold pieces 100, 200, 300, 400 based on what is shown in FIG. Indicates the folded direction.

  As described above, the folding helmet 1 according to the present invention, when used, forms the helmet in a complete form by unfolding the helmet fold pieces 100, 200, 300, and 400, thereby improving the safety of the user at the work site or the like. It can be secured, and when it is not in use, the helmet folds are folded to reduce the size of the helmet from a hemisphere to one-fourth of it, so that the size is significantly reduced compared to ordinary helmets Easy to store.

  In the foldable helmet 1 according to the present invention, the plurality of helmet fold pieces are the inner peripheral surfaces 110, 210, 310 of one helmet fold piece 100, 200, 300 and the helmet fold pieces adjacent to the inside thereof. Sliding connection means for connecting the outer peripheral surfaces 220, 320, 420 of the 200, 300, 400 so as to be slidable along the circumferential direction may be included.

  At this time, one helmet folded piece portion 100, 200, 300 and the helmet folded piece portion 200, 300, 400 adjacent to the inside thereof mean a pair of helmet folded pieces adjacent to each other, and one helmet folded piece. The part is positioned relatively outside with respect to the helmet fold piece part adjacent to the inside thereof.

  Specifically, the inner peripheral surface 110 of the first helmet folded piece portion 100 and the outer peripheral surface 220 of the second helmet folded piece portion 200, the inner peripheral surface 210 of the second helmet folded piece portion, and the third helmet folded piece by the sliding connection means. The outer peripheral surface 320 of the part 300, the inner peripheral surface 310 of the third helmet fold piece portion, and the outer peripheral surface 420 of the fourth helmet fold piece portion 400 are slidably coupled.

  Accordingly, the plurality of helmet folded piece portions 100, 200, 300, and 400 can be easily developed, and can stably hold the form when deployed. Further, the impact from the outside is not directly transmitted from the helmet 1 to the user's head but is transmitted through the slide type connecting means.

  Specifically, the sliding connection means may include concave slide portions 112, 212, 312 and convex slide portions 222, 322, 422.

  Such concave slide portions 112, 212, 312 are formed in the circumferential direction on the inner peripheral surfaces 110, 210, 310 of one helmet folded piece portion 100, 200, 300, and convex slide portions 222, 322, 422 are formed. Is formed so as to be fitted to the concave slide portion on the outer peripheral surfaces 220, 320, 420 of the helmet folded piece portions 200, 300, 400 adjacent to the inside.

  In the case of the present invention, as illustrated, the inner peripheral surface 110 of the first helmet folded piece portion 100, the inner peripheral surface 210 of the second helmet folded piece portion 200, and the lower portion of the inner peripheral surface 310 of the third helmet folded piece portion 300. A concave slide portion 112, 212, 312 having a rail shape may be formed along the circumferential direction. Specifically, the rail-shaped concave slide portions 112, 212, and 312 are configured such that a “⊥” -shaped or “├” -shaped groove is formed in a cross section with respect to the length direction.

  And the convex-shaped slide part 222 of the form of a volt | bolt or a button on the outer peripheral surface 220 of the 2nd helmet folded piece part 200, the outer peripheral surface 320 of the 3rd helmet folded piece part 300, and the outer peripheral surface 420 of the 4th helmet folded piece part 400. 322, 422 may be formed. Specifically, the convex slide portions 222, 322, and 422 in the form of bolts or buttons are disposed near the trailing end with respect to the rotation direction developed on the outer peripheral surfaces 220, 320, and 420 in consideration of the slide displacement. And the convex slide parts 222, 322, and 422 are comprised by the connection part which connects a head and a head to an outer peripheral surface. At this time, the head is arranged so as to be fitted to “-” or “|” in the groove of the “⊥” shape or “⊥” shape of the concave slide portions 112, 212, 312.

  As described above, the convex slide portions 222, 322, and 422 in the form of bolts or buttons are fitted to the concave slide portions 112, 212, and 312 in the form of rails, and are slid along the rail, so that one helmet fold is formed. Expansion and folding of the helmet fold pieces 200, 300, 400 adjacent to the inside of the pieces 100, 200, 300 are stably performed.

  On the other hand, although not shown in the drawings, the concave slide portion and the convex slide portion can be formed in different positions. And the convex slide part is not limited to the illustrated bolt or button form, but for example, a rail form that can be fitted to the concave slide part is also possible.

  Preferably, in order to limit the rotation of the plurality of helmet fold pieces 100, 200, 300, one helmet fold piece 100, 200, 300 has an inner peripheral surface 110, 210, 310 and a concave slide portion 112, 212. , 312, stopper portions 114, 214, 314 formed so as to block at least one of the two ends.

  Specifically, referring to the drawings, each of the first helmet folded piece portion 100, the second helmet folded piece portion 200, and the third helmet folded piece portion 300 has an inner peripheral surface 110, 210, 310 and a concave slide portion 112. , 212, 312 may be provided with stopper portions 114, 114 ′, 214, 314 formed so as to protrude from both ends.

  Thereby, the 2nd helmet folded piece part 200, the 3rd helmet folded piece part 300, and the 4th helmet folded piece part 400 which were located relatively inside are each the 1st helmet folded piece part located relatively outside this. 100, when rotating inside the second helmet folded piece 200 and the third helmet folded piece 300, the inner helmet folded piece is blocked by the stopper portions 114, 114 ', 214, 314 of the outer helmet folded piece. It will not peel off the outer helmet folds.

  More preferably, the stopper portion 114 ′ formed at the trailing end portion with respect to the deployment direction in the stopper portions 114, 114 ′ of the first helmet fold piece portion 100 is the second helmet fold piece portion 200, the third helmet fold portion. It can have a height equal to or greater than the sum of the thicknesses of the three helmet fold pieces so as to limit the entire rotation of the piece 300 and the fourth helmet fold piece 400.

  The plurality of helmet folding parts 200, 300, and 400 can form a complete helmet 1 by rotating and deploying in one direction, and forming a complete helmet when rotating and deploying in the opposite direction. However, the stopper portion 114 ′ of the first helmet folded piece portion 100 described above can block the rotation of the plurality of helmet folded piece portions in the opposite direction and induce rotational deployment only in one direction.

  In addition, the convex slides 222, 322, 422 are coupled to the concave slides 112, 212, 312 so that the helmet folding parts 100, 200, 300, 400 can be assembled and disassembled. Openings 115, 215, 315 may be formed.

  Specifically, as shown in the drawing, the concave slide portions 112, 212, 312 are at least more than the head so that the heads of the convex slide portions 222, 322, 422 can be inserted at the trailing end portion in the deployment direction. Large openings 115, 215, 315 can be provided.

  Next, one helmet folded piece portion 100, 200, 300 located relatively outside is for preventing rainwater inflow formed by projecting along the meridian direction on the inner peripheral surface at the portion where the helmet folded piece portions overlap. Protrusions 116, 216, 316 can be provided.

  Even when the helmet folds 100, 200, 300, 400 are deployed to form a complete helmet 1, there is only a gap between the helmet folds because of the structure, and it is worn in the rain. When you do rainwater can get inside.

  Therefore, in the present invention, the rainwater inflow prevention protrusions 116, 216, and 316 are provided to prevent the inflow of rainwater by closing the gaps between the plurality of helmet fold pieces 100, 200, 300, and 400 that are deployed.

  Specifically, as illustrated, the first helmet folded piece portion 100, the second helmet folded piece portion 200, and the third helmet folded piece portion 300 are developed from the helmet folded piece portions in the inner peripheral surfaces 110, 210, and 310. It may be formed to protrude long along the meridian direction or the longitudinal direction at the leading end portion in the direction. At this time, the end portion is a concept including an end portion and a portion close to the end portion, and is used in the same meaning as a whole.

  Thereby, the 2nd helmet folded piece part 200, the 3rd helmet folded piece part 300, and the 4th helmet folded piece part 400 become the 1st helmet folded piece part 100, the 2nd helmet folded piece part 200, and the 3rd helmet folded piece, respectively. When deployed with respect to the portion 300, the projections 116, 216, and 316 for preventing rainwater inflow of the first helmet folded piece, the second helmet folded piece, and the third helmet folded piece are the second Helmet folded pieces. By closely contacting with the outer peripheral surface 220 of the part, the outer peripheral surface 320 of the third Helmet folded piece, and the outer peripheral surface 420 of the fourth Helm folded piece, it is possible to eliminate a substantial portion of the gap between the helmet folded pieces.

  And as above-mentioned, since the helmet fold piece part 100,200,300,400 has a small radius, so that it is a helmet fold piece part close | similar to the center of a hemisphere, the 1st helmet fold part is in the state which the helmet fold piece part was expand | deployed. An interval is formed between the piece 100 and the fourth helmet folded piece 400.

  Therefore, in order to eliminate such a space | interval, the 1st helmet folded piece part 100 can additionally have the part formed extending inward from the part which overlaps with the 4th helmet folded piece part 400. FIG.

  Specifically, as shown in the drawing, the first helmet folded piece 100 may have an extension 117 formed so as to protrude along the meridian direction in the entire trailing end portion with respect to the deployment direction.

  On the other hand, the extension part 117 extended in this way can be formed in the same part as the stopper part 114 ′ of the first helmet folded piece part 100 described above. Further, the extension 117 may include a structure that itself becomes a protrusion for preventing rainwater inflow or performs such a function.

  Preferably, the helmet folded piece portions 200, 300, and 400 positioned relatively inwardly adjacent to one helmet folded piece portion 100, 200, and 300 are outer peripheral surfaces at portions where the helmet folded piece portions overlap each other. The rainwater inflow prevention groove portions 226, 326, and 426 formed in a groove shape along the meridian direction can be provided.

  At this time, the rainwater inflow prevention groove portions 226, 326, and 426 are configured to be specifically fitted so as to correspond to the rainwater inflow prevention protrusion portions 116, 216, and 316, respectively.

  Specifically, as shown in the figure, the second helmet folded piece 200, the third helmet folded piece 300, and the fourth helmet folded piece 400 are in the direction of deployment of the middle helmet folded piece on the outer circumferential surfaces 220, 320, and 420. It can be formed in a groove shape that is long recessed along the meridian direction or the longitudinal direction at the trailing edge portion.

  Thereby, the 2nd helmet folded piece part 200, the 3rd helmet folded piece part 300, and the 4th helmet folded piece part 400 become the 1st helmet folded piece part 100, the 2nd helmet folded piece part 200, and the 3rd helmet folded piece part, respectively. When deployed with respect to 300, the projections 116, 216, and 316 for preventing rainwater inflow of the first helmet folded piece, the second helmet folded piece, and the third helmet folded piece are the second helmet folded pieces, respectively. , By being coupled to the rainwater inflow prevention grooves 226, 326, and 426 of the third helmet folded piece and the fourth Helmet folded piece, it is possible to reliably block water from entering between the helmet folded pieces. can do.

  At the same time, the coupling of the rainwater inflow prevention protrusions 116, 216, 316 and the rainwater inflow prevention grooves 226, 326, 426 prevents the adjacent helmet folds from being excessively rotated and separated from each other. You can also That is, the helmet folded piece portions 100, 200, 300, and 400 that are deployed in the fastening role can firmly hold a complete helmet shape.

  On the other hand, although not specifically illustrated, the rainwater inflow prevention groove portion to which the extension portion 117 of the first helmet folded piece portion 100 or the rainwater inflow prevention protrusion formed thereon is coupled is the fourth folded piece portion 400. The outer peripheral surface 420 may be additionally formed.

  On the other hand, although not shown, when the rainwater inflow prevention protrusion is used alone without the rainwater inflow prevention groove, the rainwater inflow prevention protrusion can be positioned at the rainwater inflow prevention groove. . Similarly, when the rainwater inflow preventing protrusion and the groove are used together, they can be formed in different positions. That is, it is recognized that such simple modifications are included in the scope of the present invention.

  More preferably, the foldable helmet 1 according to the present invention includes a connecting fastening means 500 provided to connect the plurality of helmet fold pieces 100, 200, 300, 400 to the common shaft in a fastening manner. Can do. For example, the coupling tightening means can be constituted by a bolt type although not specifically shown.

  After unfolding the helmet folds 100, 200, 300, 400 to make a complete helmet 1, by tightening the coupling fastening means 500, the developed helmet folds are brought into close contact with each other, The rainwater inflow prevention protrusions 116, 216, and 316 and the rainwater inflow prevention grooves 226, 326, and 426 are more firmly coupled.

  As a result, the effect of preventing rainwater inflow between the helmet fold pieces 100, 200, 300, and 400 can be further improved, and at the same time, the safety and rigidity of the helmet can be further improved.

  The connection tightening means 500 is more effective when used together with the rainwater inflow preventing protrusions 116, 216, 316 and the grooves 226, 326, 426, but does not exclude the case where it is used alone. Of course. In this way, some effects can be obtained even when used alone.

  Next, in the portion where the first helmet folded piece portion 100 and the last helmet folded piece portion 400 overlap, the first helmet folded piece portion has a first locking portion 118 formed by protruding from the inner peripheral surface 110. The last helmet folded piece portion may include a second locking portion 428 that protrudes to be locked to the first locking portion on the outer peripheral surface 420.

  This is because the first helmet lock 118 and the second latch 428 are engaged with each other and fastened in a state where the plurality of helmet folding pieces 100, 200, 300, 400 are deployed. To be able to hold on.

  Specifically, the first helmet folded piece 100, which is the first helmet folded piece in the present invention, is a rear end portion of the inner peripheral surface 110 with respect to the deployment direction, and the lower part along the meridian direction or the longitudinal direction. A first locking portion 118 formed to protrude is provided.

  And the 4th helmet folded piece part 400 which is the last helmet folded piece part is in the 1st latching | locking part 118 along a meridian direction or a vertical direction from the front-end part part in the expansion | deployment direction in the outer peripheral surface 420 to the lower part. A second locking portion 428 is formed to project so as to correspond.

  At this time, as described above, the radius decreases with going to the fourth helmet folded piece 400 in the first helmet folded piece 100, so that when the helmet folded pieces 100, 200, 300, 400 are deployed, An interval is formed between the 1 helmet folded piece part and the fourth helmet folded piece part.

  Therefore, since the first locking portion 118 meshes with the second locking portion 428, the trailing end portion of the first helmet folded piece portion 100 in the inner peripheral surface 110 with respect to the deployment direction extends to the inside of the hemisphere. It is preferable that the extension 117 is formed.

  Next, the foldable helmet 1 according to the present invention includes a plurality of developed helmet folded pieces 100, 200, 300, and 400, and the inner peripheral surfaces 110, 210, 310, 410 of the helmet folded pieces and the joints. Hair band attaching / detaching portions 130, 230, 330, 430, and 530 may be included in which the hair band is detachably provided on the shaft portion.

  The foldable helmet 1 according to the present invention constitutes the exterior of a helmet, and a hair band must be attached to the interior of the helmet for comfort on the user's head.

  For this purpose, the lower part of the inner peripheral surface 110, 210, 310, 410 of each helmet fold piece part 100, 200, 300, 400 is specifically disposed on one or more concave slide parts 112, 212, 312. Hair band attaching / detaching portions 130, 230, 330, and 430 may be provided. Such hairband attaching / detaching portions 130, 230, 330, and 430 are formed in the form of bolts or buttons, and the hairband is fixed to the head portion of the hairband attaching / detaching portion.

  In detail, as shown in the drawing, the hair band attaching / detaching part 130 of the first helmet folded piece part 130 is slidable inside the helmet folded piece parts 100, 200, 300 on the inner side. The hair band attaching / detaching part 230 of the second helmet folded piece part and the hair band attaching / detaching part 330 of the third helmet folded piece part are provided on the hair band attaching / detaching groove parts 132, 232, 332 formed on the inner peripheral surfaces 110, 210, 310, respectively. It is preferable to be mounted. More preferably, the hair band attaching / detaching portions 130, 230, and 330 of the first helmet folded piece portion 100, the second helmet folded piece portion 200, and the third helmet folded piece portion 300 do not protrude from the inner peripheral surfaces 110, 210, and 310. Configure.

  On the other hand, the hair band attaching / detaching portion 430 of the fourth helmet folded piece 400 does not interfere with the sliding folding of the plurality of helmet folded pieces 100, 200, 300, 400, and may be formed to protrude.

  In addition, a hair band attaching / detaching portion 530 may be further provided on the common shaft portion so as to detachably fix the upper portion of the hair band. Such a hair band attaching / detaching portion 530 may be formed in a “匚” shape with one side open as illustrated. Thereby, the hair band can be attached and separated through the opened part.

  Next, the foldable helmet 1 according to the present invention may include a portable ring portion 140 formed on the common shaft portion of the first helmet fold piece 100 so as to be easily carried. As illustrated, the first helmet folded piece 100 may include a portable ring portion 140 formed in a ring shape on the common shaft portion.

While the present invention has been illustrated and described with reference to specific embodiments, it is understood that the present invention can be modified and changed in various ways without departing from the spirit and scope of the present invention described in the claims. It should be made clear that this is obvious to those who have ordinary knowledge in the technical field to which the present invention belongs.

Claims (8)

A folding helmet (1) formed in a hat shape when a plurality of helmet folding pieces (100, 200, 300, 400) are rotatably connected to a common shaft and deployed in a stepped manner,
The plurality of helmet fold parts (100, 200, 300, 400) are easy to deploy, and the helmet fold parts (100, 200, 300) are arranged so as to stably hold the form when deployed. The inner peripheral surface (110, 210, 310) and the outer peripheral surface (220, 320, 420) of the helmet fold piece (200, 300, 400) adjacent to the inner periphery are connected to be slidable along the circumferential direction. A foldable helmet characterized by including sliding connection means.   The sliding connection means includes concave slide portions (112, 212, 312) formed in a circumferential direction on inner peripheral surfaces (110, 210, 310) of the one helmet fold piece portion (100, 200, 300). ) And a convex slide part (222, formed so as to be fitted to the concave slide part on the outer peripheral surface (220, 320, 420) of the helmet fold piece part (200, 300, 400) adjacent to the inside. 322, 422). The foldable helmet according to claim 1, characterized in that it includes 322, 422).   In order to limit the rotation of the plurality of helmet fold pieces (100, 200, 300, 400), the one helmet fold piece (100, 200, 300) is an inner peripheral surface (110, 210, 310). The stopper part (114, 214, 314) formed so that at least one end part in the both ends of the said concave slide part (112, 212, 312) may be plugged up, The claim 2 characterized by the above-mentioned. The described folding helmet.   The one helmet folded piece at a portion where the helmet folded piece portions overlap so as to prevent the inflow of rainwater by closing gaps between the developed helmet folded piece portions (100, 200, 300, 400). The portion (100, 200, 300) includes a rainwater inflow prevention protrusion (116, 216, 316) formed to protrude along the meridian direction on the inner peripheral surface (110, 210, 310). The foldable helmet according to any one of claims 1 to 3.   The helmet folds adjacent to the inner side (inward) so that the rainwater inflow preventing protrusions (116, 216, 316) are fitted in the overlapping portions of the helmet folds (100, 200, 300, 400). 200, 300, 400) includes rainwater inflow prevention grooves (226, 326, 426) formed in a groove shape along the meridian direction on the outer peripheral surface (220, 320, 420). Folding helmet as described in   The unfolded helmet helmet pieces (100, 200, 300, 400) are brought into close contact with each other, so that the rainwater inflow preventing protrusions (116, 216, 316) and the rainwater inflow preventing groove (226, 326) are provided. 426) is provided to connect the plurality of helmet fold pieces (100, 200, 300, 400) to the common shaft in a fastening manner so that the plurality of helmet fold pieces (100, 200, 300, 400) are firmly connected to each other. The foldable helmet according to claim 5, further comprising:   The first helmet folded piece (100) and the last helmet folded piece (400) overlap so that the deployed helmet folded pieces (100, 200, 300, 400) retain the hat shape. The first helmet fold portion includes a first locking portion (118) formed to protrude from the inner peripheral surface (110), and the last helmet fold portion is an outer peripheral surface (420). The foldable helmet according to claim 1, further comprising a second locking portion (428) formed to protrude so as to be locked to the first locking portion. Inside the developed helmet folds (100, 200, 300, 400), hair bands on the inner peripheral surface (120, 220, 320, 420) and the common shaft of each helmet fold The foldable helmet according to claim 1, further comprising a hair band attaching / detaching portion (130, 230, 330, 430, 530) provided in a removable manner.

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