JP2002339141A - Protective cap and mounting structure for protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide both a mounting structure for freely demountably mounting a protector such as a sunscreen member or a disaster preventing member on a protective cap such as a helmet and a method for mounting the protector. SOLUTION: This mounting structure is used to fix the protector 2 onto the protective cap 1 with at least one or more sets of engaging parts 10A and 10B. The mounting structure having excellent vibration resistance is obtained by using mutually attracting magnets and differences in level mutually engaging as pairs in combination for increasing the mounting strength of the engaging parts 10. Furthermore, multistage regulation of mounting positions along the differences in level can be carried out. In addition, the mounting properties are further enhanced by providing guide grooves for mounting on the top surface of the protective cap 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a protective cap and protective equipment. More characteristically, the present invention is a light shielding member for a protective cap such as a work helmet,
The present invention relates to an attachment structure for detachably attaching a protective member such as a disaster prevention member, glasses, or a shield.

[0002]

2. Description of the Related Art At the time of work at a construction site in Japan, it is mandatory for safety to wear a protective cap represented by a normal work helmet. Further, when performing special work such as welding work, it may be necessary to use protective equipment such as a shield at the same time for safety measures against sparks generated during welding. Conventionally, when wearing this protective cap and protective equipment at the same time, there has been a case where a worker cannot perform comfortable work. To give specific examples, during welding work such as arc welding and argon welding, in order to shield harmful light rays generated in the work,
A harmful light-shielding transparent member is used. In many cases, the light-shielding member is configured to have a gripping bar below the hand-held welding surface so that the operation can be performed by being gripped by one hand. However, as is well known, it is dangerous to grip the light blocking member with one hand and perform the welding operation with the other hand, particularly during a welding operation at a work place with a poor footing or at a high place. In addition, there is also a configuration in which a band or the like is fixed to the rear part of the light-shielding surface so that the worker puts the light-shielding surface on the head. However, when a worker wears a helmet, the light-shielding surface of the fogging surface type interferes with the helmet, which makes installation difficult. This is because the standard of the mounting structure of the light-shielding surface and the helmet is not unified in the market according to the technology. For this reason, there is a safety problem in some cases when the helmet is given up. Further, in the case of the cover surface type, when checking the welding condition at the time of mounting, the light-shielding surface is often removed each time, and if this mounting operation cannot be performed by one operation, it is not possible to cope with an unexpected situation. Therefore, it was sometimes difficult for a worker to perform comfortable welding work. Therefore, when wearing the protective cap and the protective equipment at the same time, it can be quickly mounted, inexpensive in structure, and can be operated with both hands.
A simple mounting structure is needed.

Actually, there are already a plurality of prior arts related to a structure in which a protective device such as a light shielding member is attached to a protective cap such as a work helmet. A concrete example is 4-22
The mounting structure disclosed in Japanese Patent Publication No. 182 discloses a structure in which a protective device such as a light shielding member is mounted on a protective cap such as a helmet using a clip or a magnet. In addition, the mounting structure disclosed in Japanese Patent Application Laid-Open No. 5-329179 has a substantially U-shaped frame that can be shouldered during work, mounting means for mounting the frame on the upper body of the operator, and a gripping rod for a hand-held welding surface. An attachment structure using a surface support member or the like that freely and freely adjusts the height is disclosed. Further, the mounting structure disclosed in Japanese Patent Application Laid-Open No. 5-56994 discloses a welding hood for covering the face using a double hood with a cloth surface that withstands high heat of 400 degrees and a cloth lining that blocks ultraviolet rays and blocks heat rays. are doing. The mounting structure disclosed in Japanese Unexamined Patent Publication No. 8-52574 includes a lower shield for protecting the mask, and an upper shield for protecting the eyes and providing a window.
Also disclosed is a shield in which the upper shield is formed to be movable at the time of wearing to open the face. The mounting structure disclosed in Japanese Patent Application Laid-Open No. 9-122170 is provided with a gripping means such as a clip for detachably gripping an eaves portion of a helmet on an upper back surface of a viewing window of a light-shielding surface of a cover type. Is disclosed.

[0004]

However, in the case of using a clip or a magnet as disclosed in Japanese Utility Model Laid-Open No. Hei 4-22182, there is a concern about the mounting strength. In particular, as disclosed in Japanese Patent Application Laid-Open No. 9-122170, the clip type is not sufficient in strength to detachably hold the eaves of the helmet. Further, as in Japanese Patent Application Laid-Open No. 5-329179, if a substantially U-shaped frame is shouldered each time at the time of work, there is a possibility that the mounting method may be complicated.
Also, as in JP-A-5-56994, hygiene is enhanced by using a hood-shaped cloth, or as in JP-A-8-52574, the protector is divided into upper and lower parts. Enlarging the field of view by allowing one to rotate freely is certainly an important factor. However, the structure in which the protective gear is attached to the protective cap in one operation has not been achieved. The most problematic point of the present invention is that the disclosed examples are not clearly used in combination with a work helmet, which is essential at a construction site in Japan.

That is, these prior arts still have the following points.
The technical issues to be solved remain: (1) The method of attaching the welding shield (protective device) to the helmet (protective cap) is not always performed in one operation; (2) The welding shield The mounting position of the helmet on the helmet is based on two positions: lowering it for work, or arranging it above to increase the visibility, and it is not always possible to further adjust the mounting position; and (3) Construction site However, it cannot be said that Japan fully considers the domestic situation that requires the wearing of a work helmet.

The present invention has been made in view of the above points, and takes into account the domestic situation in Japan, in which the wearing of a work helmet is essential, and protects the protective cap in one operation. It is an object of the present invention to provide a simple mounting structure to which a tool can be mounted, which has high vibration resistance. Specifically, according to the present invention, in order to engage the protective cap with the protective gear using at least one set of engaging tools, the magnetic force attracting each engaging tool to each other and simultaneously engaging with the pair. Provided is a mounting structure having a step. Further, it is possible to adjust the mounting position along the step. An object of the present invention is to provide a mounting structure in which the protective cap is provided with a mounting guide groove for mounting, so that the mounting structure is further improved.

[0007]

According to the present invention, as a means for solving the above problems, in the invention described in claim 1, a protective device is used for the protective cap, and at least one set of engaging devices is used. A male and female part of the pair of engaging tools, wherein (i) a main body fixedly provided to each of the protective cap and the protective tool; and (ii) It is characterized in that it has a close contact surface attracted to each other by a magnetic force and a step of a male part and a female part meshing with the pair (iii) so that they are integrally positioned and engaged.

[0008] In this configuration, the pair of the male part and the female part of the engaging device for attaching the protective device to the protective cap is not only attracted to each other using magnetic force but also positioned using a step that meshes with each other. Accordingly, it is possible to provide a mounting structure that is excellent in vibration resistance and can be mounted in one operation.

Next, in the second aspect of the present invention, in the first aspect, the engaging tool utilizes a step to adjust the mounting position of the protective cap and the protective equipment in multiple steps. It is characterized by performing on an expression.

[0010] With this configuration, the mounting position can be determined by adjusting the step that meshes with each other, and the mounting position can be adjusted, so that it is possible to cope with a request for position adjustment at the time of mounting caused by individual differences in use. Will be possible.

According to a third aspect of the present invention, in the second aspect, a plurality of steps are formed at a constant inclination angle.

[0012] With this configuration, it is possible to easily adjust the mounting angle when the protective gear is mounted on the protective cap using the steps formed with a plurality of fixed inclination angles.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the protective cap is provided with a guide groove for attaching a protective device.

[0014] With this configuration, utilizing the guide groove,
It is possible to quickly attach the protective equipment to the protective cap, especially on a helmet over the head, by using the guide groove without removing the helmet again, the protective equipment can be easily attached and detached. To be able to do.

The mounting structure of the protective cap and the protective equipment according to the present invention is basically constructed as described above. However, in order to easily adjust the mounting position at the above-mentioned mounting angle, the main body is made cylindrical. It may be formed in a shape, and a plurality of steps may be formed at a constant angle in the radial direction over a range of 360 degrees from the center. Alternatively, the step may be formed in a step shape that proceeds straight, so that the mounting position can be adjusted linearly. Further, the step may be formed on the contact surface where a magnetic force is generated, or may be formed outside the contact surface. Further, it is preferable that the cross section of the basic structure of the step is formed in an uneven shape such as a mountain, a triangle, or a square. Further, these engaging tools may be attached to the front of the helmet, or may be attached to both sides. Further, the contact surfaces that are attracted to each other by magnetic force are preferably formed of a magnet, but the other contact surface that is attracted to the pair may be formed of a member such as iron.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a mounting structure for attaching a protective device to a protective cap according to an embodiment of the present invention. First, an overall image of a mounting structure according to an embodiment of the present invention will be described with reference to FIGS. Next, the engagement device according to the embodiment of the present invention will be described in detail with reference to FIGS.

Hereinafter, the term “protective cap” is defined as a protective member used over a human head. A specific example is a work helmet. Also, the term 'protective equipment' is used to protect the human body, especially the face,
It is defined as a protective member that can be used detachably. Specific examples include a light-shielding surface, a disaster prevention surface, glasses, a mask, and a shield. It is assumed that the protective cap 1 is used continuously during a certain work period, and that the protective equipment 2 is used detachably during this period.

FIG. 1 shows an engaging device 1 according to an embodiment of the present invention comprising at least one set of a male part 10A and a female part 10B.
FIG. 4 is a perspective view showing a stage before a mounting structure in which the protective cap 1 and the protective gear 2 are detachably mounted by using the reference numeral 0. In the figure,
A helmet 1 is assumed as a “protective cap” and a disaster prevention surface 2 is assumed as a “protective equipment”. FIG. 2 is a plan view corresponding to the perspective view of FIG. As shown in FIGS. 1 and 2, in order to attach the disaster prevention surface 2 having the ears 6 projecting left and right to the helmet 1, an engagement tool 10 </ b> A is provided near the ends of the left and right ears. The ears 6 extending left and right have a small width in the longitudinal direction, and therefore have flexibility, so that they can be attached to both sides of the substantially hemispherical helmet 1.

FIG. 3 is a perspective view showing the mounting structure of the protective cap 1 and the protective equipment 2 at the completion of the mounting operation. As can be understood from FIGS. 1 and 3, the helmet 1 has an eave 3 on the front, and the disaster prevention surface 2 has a ceiling 4 on the top.
The light-shielding surface 5 used for welding or the like extends downward from the ceiling 4. Preferably, the light shielding surface 5 is a harmful light shielding transparent member having a function of shielding harmful light generated during welding work. When the protective cap 1 and the protective equipment 2 are detachably attached, the eaves 3 and the ceiling 4 are engaged with each other, so that the disaster prevention surface 2 is positioned without slipping off the helmet 1. Further, the protective device 2
The mounting position of the protective cap 1 with respect to the protective cap 1 is adjusted in a multi-step manner by using the engaging tool 10. FIG. 4 is a perspective view at the time of this position adjustment. The protector 2 is positioned up and down in multiple stages with respect to the engaging tool 10 disposed at the ends of the ears 6 at both ends of the protector 2, and a detailed description will be given later.

By mounting an elastic adjusting body (not shown) inside the helmet 1, the position of the head when wearing the helmet is always located near the center regardless of the size of the user's head. You may comprise so that it may position. This adjusting body may be configured to be detachable based on the prior art. In addition, various modifications can be envisaged for the configuration of the helmet 1, but in the present invention, the configuration of the helmet itself does not matter.

Also, as described above, these 'protective caps'
And there are various modifications of the 'protector'. FIG. 5 shows a case in which a shield (hand-held welding surface) 2 ′ for welding work is assumed as a 'protector' in these modifications.
In the figure, reference numeral 4 'denotes a ceiling portion, reference numeral 5' denotes a window portion, and reference numeral 7 denotes a grip bar. Similarly, the window portion 5 'is a harmful light-shielding transparent member having a function of shielding harmful light generated during welding work. Normally, unlike the disaster prevention surface 2 of FIG. 1, the shield 2 ′ does not have ears protruding left and right (see reference numeral 6 in FIG. 2). In this case, the shield 2 ′ 'The shield 2' is attached to the protective cap 1 with the engaging tool 10A provided at the upper center in the rear surface. Similarly, the ceiling portion 4 'on the upper portion of the shield 2' is used to engage with the eaves 3 of the helmet 1 so as to mesh with each other so that the shield 2 'does not slip off from the helmet 1 during use. Position. The perspective view of FIG. 6 shows the completion of this assembly operation.
In addition, in order to further enhance safety, a plurality of engagement tools 10 may be used to increase the assembly strength.

As described with reference to FIGS. 1 to 6, in the embodiment of the present invention, a combination of at least one set of engagement tools 10 is used to integrally engage the protective cap 1 and the protection equipment 2. Use As shown in FIG. 7, the pair of the engagement members 10 includes a male portion 10A and a female portion 10B, each of which has at least (i)
A main body 11 fixed to the protective cap 1 or the protective gear 2, (i
i) It has a contact surface 12 that attracts each other by magnetic force, and (iii) a step 13 between a male portion and a female portion that mesh with the pair. FIG. 7A shows a stage immediately before these one set of engagement tools 10 are assembled, and FIG. 7B shows an assembly stage. In this way, based on the magnetic force and the step, compared to the case where only a magnet or a clip is used, for example, the vibration can be easily removed from the fixed position with respect to the vibration at the time of work, so that the vibration It is possible to provide a mounting structure excellent in performance.

The main body 11 is fixed to the protective cap 1 or the protective equipment 2 so as not to be easily detached. Specifically, the back surface of the main body 11 and the front surface of the protective cap 1 may be integrally fixed using an adhesive member such as a double-sided tape, or both may be mechanically fixed using a bolt or the like. Further, the magnetic force for attracting the pair of the male part 10A and the female part 10B of the engagement tool 10 has a sufficient coupling force to attach the disaster prevention surface 2 or the welding work shield 2 'to the helmet 1, for example. I do. Furthermore, the male part 10A meshing with the pair
The step 13 between the female part 10B and the main body 11 or the contact surface 12
A pair of the male part 10A and the female part 10B of the engagement tool 10 is integrally engaged with each other.

Further, the engaging device 10 is constructed so that the position of the protective device 2 can be adjusted as well as simply fixing the protective device 2 to the protective cap 1. Specifically, the step 1 used for positioning the fixing position of the engagement tool 10
Utilizing 3 makes it possible to respond to a request for position adjustment at the time of mounting, which is caused by individual differences or the like in use. this is,
At present, since the standard of the mounting method in this field is not unified, it is preferable that the mounting structure can be finely adjusted on both the user side and the supplier side.

Next, with reference to FIGS. 8 to 10, the engaging device 10 will be described in more detail together with modifications. FIG. 8 is an enlarged side view of the step 13 shown in FIG. The step 13 has a cross section of the basic structure in an uneven shape such as a mountain, a triangle, or a square. For example, as shown in FIG. 8A, the shape of the side surface of the step 13 may be a triangular shape meshing with a pair as a basic structure. Or
As shown in (b), the basic structure may be a square meshing with the pair. Further, as shown in (c), the square shape is not limited to a rectangular shape, and may be, for example, a trapezoidal shape. Further, a fillet may be formed at each of the triangular or quadrangular corners in order to smooth the engagement in each shape.

FIG. 9 is a plan view of the steps 13. In a preferred embodiment according to the present invention, as shown, by forming a plurality of steps 13 at a constant inclination angle R on the upper surface of the engagement tool 10, it becomes possible to adjust the angle of the mounting position. . More specifically, the main body 11 is formed in a cylindrical shape, a circular contact surface 12 that generates a magnetic force is provided on the upper surface, and a plurality of steps 13 are formed on the contact surface 12 at a constant angle R in the radial direction from the center. Provide. Therefore, the pair of engaging tools 10 of the male portion 10A and the female portion 10B provided in each of the protective cap 1 and the protective device 2 are attracted by the magnetic force on the contact surface 12 and also engaged with each other on the contact surface 12. Positioning is performed by the step 13, and the angle of the mounting position along the angle R formed in the radial direction can be adjusted. Further, as shown in FIG. 9 (a), the step 13 may be formed in a form that proceeds linearly from the center in the radial direction, or as a curve as shown in FIG. 9 (b). May be used. Alternatively, the step may have a shape (not shown) that protrudes alternately without continuously proceeding.

Further, as shown in the conceptual diagram of FIG. 10A, the step 13 may be formed over almost the entire area on the contact surface 12 when viewed from a plane. Or (b) of FIG.
The step 13 may be formed only over a part of the contact surface 12 as shown in the conceptual diagram of FIG. Further, FIG.
The step 13 may be formed outside the contact surface 12 as shown in FIG. In this case, the contact surface 12 may be formed by a magnet, or the magnet 15 may be arranged at the center of the engagement tool 10.

In addition, the main body 11 is formed in a substantially rectangular shape (not shown), and the steps 13 are formed in a plurality of steps (not shown) at a constant inclination angle of 0, that is, in parallel steps (not shown). Fine adjustment of the position may be possible. Also in this case, similarly, there are a plurality of different embodiments of the step 13 shown in FIGS. In addition, in order to avoid duplication of description, details of these different examples are omitted.

Further, as shown in FIG.
The guide groove 20 for mounting the protection device 10 may be formed on the outer surface. Preferably, the guide groove has a substantially U shape, but any other shape may be used as long as the protector 2 can be quickly attached to the protective cap 1 using the guide groove 20. In this way, it is possible to quickly perform the attaching / detaching operation of the protector 2 without particularly removing the helmet 1 put on the head. Further, the guide groove 12
May be the shape shown in FIG. In this case, the guide groove 12 also has a stopper function for preventing the engaging tool 12 from easily coming off during use.

[0030]

According to the present invention, since the protective cap and the protective gear are structured as described above, according to the first aspect of the present invention, the protective cap is attached to the protective cap. Provide a mounting structure that is excellent in vibration resistance and can be mounted in one operation by positioning the pair of male and female parts of the tool not only by using magnetic force but also by using a step that meshes with each other. It is possible to do.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the mounting position can be determined by adjusting the step that meshes with each other, and the mounting position can be adjusted. It is possible to cope with a request for position adjustment at the time of mounting caused by individual differences or the like.

According to the third aspect of the present invention, in addition to the effect of the second aspect, the protective device is attached to the protective cap by utilizing a plurality of steps formed at a fixed inclination angle. In this case, the mounting angle can be easily adjusted.

According to the invention described in claim 4, in addition to the effects described in any one of claims 1 to 3, in addition to the above-mentioned guide groove, the protective equipment is quickly attached to the protective cap. This makes it possible to easily perform the attaching / detaching operation of the protector by using the guide groove without removing the helmet again, particularly on the helmet put on the head.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a stage before attaching a protective cap (helmet) and protective equipment (disaster prevention surface).

FIG. 2 is a perspective view showing a top view of FIG. 1;

FIG. 3 is a perspective view showing a completion stage of the mounting operation of FIG. 1;

FIG. 4 is a perspective view showing a stage of further adjusting an assembling position after the assembling shown in FIG. 3;

FIG. 5 is a perspective view showing a stage before attaching a protective cap (helmet) and protective equipment (shield).

FIG. 6 is a perspective view showing a stage when the mounting of FIG. 5 is completed.

FIG. 7 is a perspective view showing a pair of engagement tools according to the embodiment of the present invention.

FIG. 8 is an enlarged side view showing a modification of the step shown in FIG. 7;

FIG. 9 is a plan view showing a modification of the step shown in FIG. 7;

FIG. 10 is a plan view showing a modification of the step shown in FIG. 7;

FIG. 11 is a front view showing a state in which a guide groove is formed in the mounting structure of the protective cap and the protective equipment according to the embodiment of the present invention.

FIG. 12 is a front view showing a modified example of the guide groove provided in the mounting structure for the protective cap and the protective equipment according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Protective cap 2 Protective equipment 3 Eaves 4 Ceiling part 10 Engagement tool 11 Main body 12 Close contact surface 13 Step 20 Guide groove

Claims (4)

[Claims] At least one protective device is provided for the protective cap.
A mounting structure for detachably mounting using a set of engaging tools, wherein a male part and a female part of the one set of engaging tools are (i) fixed to each of the protective cap and the protective tool. And (iii) a step of a male part and a female part meshing with the pair so that they are positioned and engaged together. . 2. The mounting structure according to claim 1, wherein the engaging device adjusts the mounting position of the protective cap and the protective device in a multi-stage manner using the step. 3. The mounting structure according to claim 2, wherein a plurality of the steps are formed at a fixed inclination angle. 4. The mounting structure according to claim 1, wherein the protective cap includes a guide groove for mounting the protective device.