WO2007080786A1 - Helmet - Google Patents

Abstract

A helmet simply structured, reduced in weight, and capable of preventing rainwater from entering therein while maintaining air permeability of the helmet. A helmet body (A) has a shell body (1) formed in a hemispherical shape as a whole and having at its top a ridge (11) in the front-rear direction in a generally reverse U-shaped cross-section with a predetermined height, and also has a folded part (12) formed at a peripheral edge part of the helmet body. Vent holes (13) are symmetrically formed on both right and left sides of the shell body (1) at predetermined intervals. Around the outer periphery of the vent holes (13), on the outer surface of the shell body (1), there are formed side face projections (14a) in a linked manner and integrally with the shell body (1). In the same manner, vent holes (13) and ridge area projections (14b) are formed in the side surfaces of the ridge (11) at predetermined intervals, in a linked manner, and integrally with the ridge (11).

Description

 Specification

 Helmet

 Technical field

 TECHNICAL FIELD [0001] The present invention relates to a helmet that can be suitably used at every site such as construction sites, mountain climbing, motorcycle riding, disaster prevention, and the like. It has a discharge function and prevents the entry of water such as rainwater and fine objects (wires, etc.), and has a simple structure, mechanical strength, and can be manufactured at low cost. About Nahelmet.

 Background art

 [0002] Helmets are used as defenses to protect the body from light, such as impact and the sun, at construction sites, mountaineering, motorcycle riding, disaster prevention, and other sites. Currently, Helmets with various structures have been proposed in consideration of their functions and design. For example, in Japanese Patent Application Laid-Open No. 2005-248364, a concave portion recessed rearward in the front force of the helmet is formed in a part of the front surface of the helmet, and vent holes are opened on the outer side surface and the inner side surface of the concave portion. A lightweight helmet and a breathable helmet that reduces manufacturing costs are disclosed. However, since the helmet has only a hole provided in the hat body, there is a problem that rainwater flows from the hole and a fine object enters.

[0003] Further, Japanese Patent Laid-Open No. 2002-4127 and Japanese Patent Laid-Open No. 2002-161426 disclose that the helmet main body is placed outside the helmet body with a vent hole to prevent intrusion of rainwater or the like. There is disclosed a helmet having a structure in which a cover is provided to cover a portion of the helmet body that is provided with a vent hole, and is formed so as to form a gap with the outside of the helmet body. However, since these helmets have a double structure, the structure is complicated, and there is a problem that the weight of the helmet, which is not a force, increases if the manufacturing cost is high. Furthermore, the registered utility model No. 3090336 discloses a helmet having a structure in which a helmet shell is provided with a vent hole protruding inward for the purpose of simplifying the structure. Has been. However, the helmet has a problem in that rainwater inflow occurs because the projections forming the ventilation holes are provided inside the helmet shell. [0004] Also, in Japanese Patent Application Laid-Open No. 2004-232181, a circular opening is provided at the top of the helmet, and a plurality of ventilation holes are provided on the outer periphery of the upper end to reinforce the opening against strength deterioration. A helmet with a vent having a structure in which a rising portion is provided is disclosed.

 However, there is a problem that rainwater inflow occurs because the structure of the helmet is not a structure for inflow of rainwater or the like.

 Patent Document 1: Japanese Patent Application Laid-Open No. 2002-4127.

 Patent Document 1: JP 2002-161426 A.

 Patent Document 1: Japanese Patent Application Laid-Open No. 2004-232181.

 Patent Document 1: Japanese Patent Laid-Open No. 2005-248364.

 Patent Document 1: Registered Utility Model No. 3090336.

 Disclosure of the invention

 Problems to be solved by the invention

[0006] An object of the present invention is to provide a helmet that can be suitably used at every site such as construction sites, mountain climbing, motorcycle riding, disaster prevention, etc., and eliminates the drawbacks of the helmet according to the above-described conventional technology, When used in various fields, it has an effective heat release function due to good air permeability, and prevents intrusion of water such as rainwater and fine objects (wires, etc.), and light weight is also light. Therefore, it is possible to provide a helmet having a simple structure, mechanical strength, and capable of being manufactured at low cost.

 Means for solving the problem

[0007] As a result of intensive studies to solve the above problems, the present inventor provided a convex portion on the outer peripheral portion of the helmet body in the helmet, and communicated inward and outward in the horizontal direction to the convex portion. By using a structure that has a vent hole to be formed, it is possible to release hot air effectively with a simple structure and good ventilation, and the force is also directed outward of the outer periphery of the helmet body. It has been found that the formed convex-shaped structure can effectively prevent rainwater and the like from entering the helmet, and the present invention has been completed. That is, the heat inside the helmet is released to the outside of the helmet through a vent hole communicating with the inside and outside of the helmet body in the horizontal direction. On the other hand, rainwater, etc., is poured into the outer periphery of the helmet body. Rainwater, etc. flows down around the convex part and does not flow into the inside of the helmet body. In addition, rainwater near the entrance of the ventilation hole is prevented from flowing into the helmet body due to the surface tension of the ventilation hole, and does not flow into the helmet body. With the structure of the vent hole of the present invention, it is possible to effectively prevent the entry of fine objects such as wire into the hermet as much as possible to prevent rainwater or the like from entering the hermet.

 [0008] In the present invention, the convex portion formed with the air holes is formed integrally with the helmet body, so that the structure can be simplified during the manufacturing process. Not only can the helmet have a mechanical strength increased. In the present invention, the convex portion is formed on the convex ridge portion having a vertically long substantially inverted U shape formed in the longitudinal direction of the top portion of the helmet body, so that the hot air at the top portion of the helmet, which is most likely to collect hot air, is generated. It can be effectively released out of the helmet body, and the mechanical strength of the helmet can be significantly increased. In addition, by forming the convex portions as a plurality of independent convex portions on the side of the helmet body, it is possible to promote the release of hot air from the helmet to the outside of the helmet body and increase the strength of the helmet. Can do.

 [0009] In the present invention, the height of the convex portion is preferably 0.5 to 5 mm with respect to the outer peripheral surface of the helmet body. In consideration of the surface tension effect of the air holes, the diameter is preferably 1 to 8 mm, and is preferably formed as a narrow hole having a length of 1.5 to 7 mm. In the helmet according to the present invention, a head contact member is installed in the helmet body at a predetermined interval with respect to the inner peripheral surface of the helmet body in the same manner as the conventional helmet, so that the air permeability in the helmet body is increased. Has been improved

[0010] Specifically, the present invention is (1) a hot air characterized in that a convex portion is provided on the outer peripheral portion of the helmet body, and a vent hole communicating inward and outward in the horizontal direction is formed in the convex portion. (2) The helmet according to (1) above, wherein the convex part is formed integrally with the helmet body, and (3) the convex part is around the top of the helmet body. The helmet described in (1) or (2) above, characterized in that it is formed in a convex strip having a vertically elongated U-shape formed in a direction, and (4) the convex Multiple independent on the side of the helmet body (1) or (2), or (5) the convex portion is continuous with the outer peripheral surface of the helmet body, and has an annular convex shape. (1) to (4) characterized in that they are formed as a portion.

[0011] In the present invention, (6) the height of the convex portion is 0.5 to 5 mm with respect to the outer peripheral surface of the helmet body. (1) to (5) characterized in that the described helmet or (7) vent hole has a diameter of 1 to 8 mm and is formed as a pore having a length of 1.5 to 7 mm. ), Or (8) V inside the helmet body with a head contact member installed at a predetermined interval with respect to the inner peripheral surface of the helmet body. The above (1) to (7) are made of the helmet described in any of the above.

 The invention's effect

 [0012] The hermet of the present invention eliminates the drawbacks of the helmet, such as defective discharge of hot air, which has been a problem with conventional products when used at any site such as construction sites, mountain climbing, motorcycle riding, and disaster prevention. Eliminates and has an effective hot air release function with good air permeability when used at various sites, and effectively prevents the entry of water such as rainwater and fine objects such as wire. In addition, the helmet of the present invention has a light weight and simple structure, which can reduce the manufacturing cost, and can provide a helmet having a simple structure and increased mechanical strength. It is. Therefore, the present invention provides a helmette with excellent practicality that can be suitably used at various sites.

 Brief Description of Drawings

FIG. 1 is an explanatory diagram viewed from the side of a helmet in an embodiment of the present invention.

 FIG. 2 is a plan view of a helmet according to an embodiment of the present invention.

 FIG. 3 is a cross-sectional view taken along the line AA of FIG.

 [Fig. 4] An enlarged view of part B of the helmet in Fig. 3.

 [Fig. 5] Enlarged view of part C of the helmet of Fig. 3.

 BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. The following examples are preferred embodiments of the present invention, and the present invention is not limited to the examples. In the drawings in the following embodiments, FIG. 1 shows an embodiment of the present invention. Fig. 2 is a plan view of the helmet in the same embodiment, Fig. 3 is a cross-sectional view of the helmet's A-A line in Fig. 1, and Fig. 4 is a view of the helmet in Fig. 3. FIG. 5 is an enlarged view of part B and FIG. 5 is a vertical sectional view of the helmet according to this embodiment. In the figure, H is a helmet; A is a helmet body; 1 is a helmet shell; 11 is a projecting portion; 12 is a folded portion; 13 is a vent hole; Is a convex part; 14a is a side convex part; 14b is a convex part convex part; 15 is a collar part.

[0015] (Overall shape)

 Below, the whole shape of the helmet based on the Example of this invention is demonstrated. The helmet H according to the embodiment of the present invention has a helmette body A that is generally hemispherical and has a fold at the edge, and a head contact body that is attached to the inside of the helmet body A. .

 [0016] (Helmet body A)

 The helmet body A is generally formed in a hemispherical shell 1 having a projecting portion 11 of a predetermined height with a substantially inverted U-shaped cross section formed at the top and front, and a front portion of the shell 1. It consists of a flange portion 15 and a folded portion 12 formed on the peripheral edge portion. A plurality of vent holes 13 are formed symmetrically at predetermined intervals on the left and right sides of the shell 1. Then, on the outer surface of the shell 1 at the outer peripheral portion of the vent hole 13, a side convex portion 14 a is integrally formed with the shell 1 in a link shape. In addition, vent holes 13 are formed symmetrically on the side surfaces of the projecting portions 11, and the projecting portions of the link-shaped projecting portions are formed in rows on the outer surface of the projecting portions 11 outside the vent holes 13. 14b is formed integrally with the protrusion 11 at a predetermined interval. The shell 1, the projecting portion 11, the folded portion 12, the vent hole 13, the side surface projecting portion 14a, the projecting portion projecting portion 14b, and the flange portion 15 are formed by integral molding of synthetic resin. By adopting this integral molding structure, the strength of the helmet body can be increased.

[0017] In the above-described Helmet structure, when the outer peripheral portion of the side surface convex portion 14a or the projecting portion convex portion 14b is formed integrally with the outer surface of the helmet shell 1, it is possible to cope with an impact force from the outside. You can get a helmet H with greater power. The above-mentioned Helmet body A is implemented by attaching a head contact body (not shown) to the inside of the shell body 1 using the means employed in the conventional Helmet. Example helmet H can be completed. What The head contact body B arranged in the shell 1 of Rumet H has no particular difference from the head contact body conventionally arranged in the helmet.

[0018] (Function)

 The helmet according to the present invention has the above-described configuration, so that hot air in the helmet is released to the outside of the helmet through vent holes 13 and 14 that communicate with the inside and outside of the helmet body in the horizontal direction. On the other hand, for rainwater, etc., the force vents poured into the outer periphery of the helmet body are formed on the convex parts 14b and 14a that are formed outward of the outer periphery of the helmet body. Will flow down around the convex parts 14b and 14a, and the air hole force will not flow into the inside of the helmet body. In addition, rainwater near the entrance of the ventilation hole is prevented from flowing into the helmet body by the surface tension of the ventilation hole and does not flow into the helmet body. With the structure of the vent hole of the present invention, it is possible to effectively prevent the entry of fine objects such as wire into the helmet as much as possible while preventing rainwater and the like from entering the helmet.

 [0019] Further, in the helmet of the present invention, the protrusion 11 formed on the top of the helmet body improves the stress against the impact force from the upper part of the helmet H, and the helmet body A is provided by the vent hole 13. As a result, the temperature rise at the top of the helmet body A can be effectively prevented. Further, by forming a predetermined space in the shell body 1 by the head contact body B, the head contact body B communicates with the ventilation structure by the structure of the projecting portion 11 formed on the top portion of the hermet body. It is possible to effectively suppress the rise in the temperature inside the shell 1 by expanding the air flow. In the present invention, the strength of the entire helmet H can be improved by providing the folded portion 12 on the helmet body.

[0020] In the helmet of the present invention, the structure of the convex portion 14 (side convex portion 14a, convex portion convex portion 14b) can prevent rainwater and the like from entering the vent hole 13 and the entire helmet H. The reinforcement of can be provided. In particular, by forming the side surface portion of the convex portion 14 in a structure that is continuous with the outer peripheral surface of the helmet body H, this reinforcing effect can be remarkably increased. In the present invention, the height of the convex part is preferably 0.5 to 5 mm with respect to the outer peripheral surface of the helmet body. Considering surface tension effect etc., l-8mm diameter, 1. 5-7mm length It is preferable to be formed as pores.

[0021] In particular, in the helmet of the present invention, since the vent hole 13 of the projecting portion 11 disposed at the top of the helmet is formed in the projecting portion convex portion 14b, rainwater or the like from above is formed. Since the gas flows downward around the circumference, it does not enter the inside of the shell 1 from the vent hole 13. Also, as described above, the vent hole 13 has a sufficiently small inner diameter. Intruders such as wire from can be extremely reduced.

 [0022] In the helmet of the present invention, what is described in this example is ventilated from the vent hole 13 of the projecting portion 11 arranged at the top of the helmet, so that the helmet is particularly easy to collect hot air. Effective heat dissipation is possible with the ability of the top of the head, no heat is trapped in any position inside the main body H, the user's head is kept comfortable, and heat stroke is possible even in work in good weather. Etc. can be prevented.

 [0023] In the embodiment of the present invention, it is needless to say that the case where the protruding portion 11 arranged at the top of the helmet is not provided is also included in the embodiment of the present invention. Further, in the embodiment of the helmet of the present invention, the number of the vent holes 13 is a design matter, but the greater the number, the better the air permeability but the tendency for the response ability to decrease. As a preferred embodiment, in this embodiment, there are 6 protrusions 11 (and therefore 6 protrusions 14b), and 10 shells 1 on the left and right sides (and therefore side protrusions 14a). 10) each. In addition, since the vent holes 13 are separated from each other, these side surface convex portions 14a are provided with one projecting portion convex portion 14b for a plurality of the vent holes 13, although they are close to each other. It may be provided. In addition, the protrusions 14b should be formed in different sizes.

 Industrial applicability

[0024] The present invention eliminates the shortcomings of the conventional technology of Helmet that is used at various sites such as construction sites, mountain climbing, motorcycle riding, disaster prevention, etc., and can be used suitably at any site. And has high industrial applicability.

Claims

The scope of the claims  [1] A helmet having a hot air release function, characterized in that a convex portion is provided on the outer peripheral portion of the helmet body, and a vent hole is formed in the convex portion so as to communicate inward and outward in the horizontal direction.  [2] The helmet according to claim 1, wherein the convex portion is formed integrally with the helmet body.  [3] The helmette according to claim 1 or 2, wherein the convex portion is formed on a convex portion having a vertically long substantially inverted U shape formed in the front-rear direction of the top of the helmet body. [4] The helmet according to claim 1 or 2, wherein the convex portion is formed as a plurality of independent convex portions on a side portion of the helmet body. [5] The helmet according to any one of [1] to [4], wherein the convex portion is formed as an annular convex portion continuously with the outer peripheral surface of the helmet body. [6] The helmet according to any one of claims 1 to 5, wherein the height of the convex portion is 0.5 to 5 mm with respect to the outer peripheral surface of the helmet body. [7] The deviation according to any one of claims 1 to 5, wherein the vent hole has a diameter of 1 to 8 mm, and is formed as a pore having a length of 1.5 to 7 mm. Lumet. [8] The helmet according to any one of claims 1 to 7, wherein a head contact member is installed inside the helmet body at a predetermined interval with respect to the inner peripheral surface of the helmet body.