JP2005113292A - Welding mask - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a welding mask whose three-dimensional shape is lightweight and small and which enables welding works in a narrow place, does not limit movements, does not give heavy loads to the head and the neck, can be fixed even in the case of a work in an inverted posture, and does not loosen bolts for fixing the mask. <P>SOLUTION: This welding mask formed to cover the face of a user and provided with a viewing window closably formed by the rotation of a shielding plate is characterized by having a curved helmet collar-receiving fitting horizontally attached to the upper edge inside of the welding mask, a fixing member attached to the outer sides of both the upper ends of the welding mask, and a string member inserted into holes formed at target positions on both the sides of the lower edge of the welding mask. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a welding surface that can be attached to and detached from a baseball cap-type helmet and can be integrally attached.

  Conventionally, arc welding has been used for welding and fusing. This is a method in which electric power is applied between a workpiece and an electrode to cause an arc discharge, and a weld / cut portion is melted by the generated heat to weld / cut, and a welding rod is generally used for the electrode. The arc generates a large amount of ultraviolet rays and infrared rays together with strong light rays, and causes iron powder and spatter to scatter, causing damages such as eye diseases and burns. Therefore, it is necessary to protect the human body, especially the face and eyes.

  Various types of welding surfaces have been conventionally used to protect the human body, particularly the face and both eyes, during arc welding. The most common type is the hand-held type, which has a welding surface in one hand and a welding rod in the other hand during the welding operation, thus depriving the freedom of both hands during the operation. On the other hand, there is a combination of a welding surface and a helmet which is a head protection member, and if this is used, one hand is freed during the work and work efficiency is increased. In this case, the welding surface is pivotally supported via metal fittings attached to both sides of the helmet and the upper part of the operator's both ears, so that the welding surface is rotated over the head if necessary. In order to resume the work, it may be rotated from the overhead state to the face protection state. The fixing of the welding surface in the overhead state and the face protection state is generally based on the tension of a spring spring connecting the welding surface and the helmet.

  In the case where the welding surface is attached to the helmet so as to be rotatable, the three-dimensional shape such as the width is larger than that of the helmet in order to rotate the welding surface. For this reason, this type of welded surface is difficult to work in a narrow space, restricted in movement, heavy and heavy on the head and neck, and inverted work has the disadvantage of moving the welded surface. It was. In particular, the conventional spring spring used to fix the welding surface will loosen when the bolt that fixes it to the helmet is used repeatedly, and if it is tightened too much, it will cause extra force when rotating the welding surface up and down. In short, there was a drawback that increased the fatigue of the operator.

As an improvement measure, instead of attaching the welding surface to the helmet so that it can rotate freely, the above-mentioned drawbacks are eliminated by fitting the upper edge of the welding surface to the brim of the baseball cap type helmet. This is the present invention. The following Patent Documents 1 to 4 are all related to a rotatable welding surface, and in particular, Patent Documents 3 and 4 are related to opening and closing of a viewing window on the rotatable welding surface. The conventional pivotable welding surface uses a technology that allows you to open and close the sight glass, so that you can visually check the work status, so there is no need to rotate the welding surface itself around the shaft support bracket to the helmet. Since the work situation can be visually confirmed, the rotatable welding surface becomes an excessive requirement standard. Focusing on this point, the welding surface of the present invention has improved the welding workability by adopting a technique for freely opening and closing the viewing window instead of turning the welding surface itself.
JP 10-234771 JP-A-11-225479 JP 09-010252 Special table flat 08-510066

  The problem to be solved is that by reducing the three-dimensional shape of the welding surface to make it lighter and smaller, welding work can be performed in a narrow area, movement is not limited, and it is heavy and burden on the head and neck This eliminates the disadvantage that the welding surface does not move even when working upside down, and that the bolt that fixes the spring spring for fixing the welding surface is loosened.

  According to a first aspect of the present invention, there is provided a face piece formed so as to wrap the face of the welding operator, and includes a viewing window that can be opened and closed by turning a light shielding plate at an upper central portion of the outer face of the face piece. A curved helmet fitting fitting (hereinafter referred to as fitting fitting) horizontally attached to the inside of the upper edge of the welding surface, and the fitting fitting attached to both upper ends of the welding surface It is a welding surface comprising: a tension member for fixing a fitting between a helmet and a helmet; and a string member inserted in a hole formed at a target position on both sides of the lower edge of the welding surface. And

  The invention according to claim 2 is characterized in that the fitting has a groove on the curved inner center line, the groove is substantially the same as the circumference of the helmet collar, and the depth and width of the groove are the same as those of the helmet collar. The gist of the present invention is the weld surface according to claim 1, which is formed to have a depth and width necessary and sufficient for fitting.

  The gist of the invention according to claim 3 is the welding surface according to claim 1, wherein the helmet is a baseball cap type helmet.

  The gist of the invention according to claim 4 is the welding surface according to claim 1, wherein the tension member is a long plain weave tension member containing rubber.

  The invention according to claim 5 is the welding surface according to claim 1, wherein the string member is formed such that the lower part of the welding surface is fixed around the neck of the welding operator, and the length of the string member is adjustable. It is a summary.

  The gist of the invention according to claim 6 is that the weld surface is made of synthetic resin and / or leather (including artificial leather).

  The welding surface of the present invention can reduce the weight and size of the welding surface, enables welding work in a narrow space, is not restricted by movement, reduces the burden on the head and neck due to its weight, and is upside down. Even when working, the welding surface does not move, and the bolt for fixing the welding surface fixing spring spring is not loosened, so that it is easy to use, durable, and has a long life.

  The best mode for embodying the welded surface of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a situation where the welding surface 1 of the present invention is fitted to the collar 12 of the helmet 11, FIG. 2 is a front view showing an embodiment of the welding surface 1 of the present invention, and FIG. 4 is a right side view of the figure, FIG. 5 is a plan view of the fitting 3 attached to the inside of the upper edge of the welding surface 1, and FIG. 6 is a front view of the same.

  In FIG. 1, the outer peripheral edge of the collar 12 of the baseball cap-type helmet 11 is inserted into the groove 31 of the fitting 3, and the rubber band of the tension member 4 is wound around the baseball cap-type helmet 11, so that both members are integrated. Shows the situation. A knot 52 for adjusting the length can be seen at the other end of the ring member 5 near the center of the string member 5, and holes 51 for inserting the string member 5 are opened on both sides of the lower part of the face piece 2. Yes.

The welding surface 1 is composed of a synthetic resin face body 2, a fitting 3, a tension member 4, and a string member 5, and a viewing window 6 is formed at the upper center of the face body 2. The face body 2 is a semi-cylindrical shape that protects the welding worker's face, the lower part is curved inward, the upper edge is cut horizontally, and the metal fitting 3 is attached to the inner side of the upper edge. A groove 31 is formed inside the curved fitting 3, and the groove 31 has a depth, a width, and a length necessary for fitting the outer edge of the collar 12 of the helmet 11 for a worker's head. The outer edge of the collar 12 is fitted into the groove 31. In this state, the fitted state is loose and cannot be used, so both ends of the long tension member 4 are attached to the upper edge of the face piece 2, and the helmet 11 is attached to the helmet 11 with the collar 12 and the groove 31 fitted. The welded surface 1 and the helmet 11 are integrated with each other by winding and tightly fitting with the tension of the tension member 4. In Example 1, a rubber band was used as the tension member 4. Depending on the object to be welded, the lower part of the welding surface 1 may be separated from the body of the welding operator during the work, so it is necessary to stop it. Therefore, holes 51 are formed on both sides of the lower part of the face piece 2, the string members 5 are inserted into these holes 51 and both ends are connected to form a double ring, and the operator's head is passed through the ring, When the worker wears the helmet 11 fitted with the welding surface 1, the string member 5 is wound around the operator's neck. For that purpose, the string member 5 is inserted into one hole 51, the vicinity of the central part of the string member 5 to be a double ring is connected, the length on the one hole 51 side is fixed, and the other hole 51 is If the lengths of the free ends of the string members 5 to be inserted are uneven, the longer end is inserted through the other hole 51 and folded back, matched to the worker's body shape, and tied to the shorter end, the worker's body shape A matched ring is obtained.

  The viewing window 6 formed at the center upper portion of the face piece 2 can be freely opened and closed by holding the knob 64 and rotating the light shielding plate 61 around the hinge 63. The light shielding plate 61 is attached to the face body 2 via a spring spring 62. For the light shielding plate 61, known techniques described in the above-mentioned patent documents such as opaque colored glass and liquid crystal are used. In the welding surface 1 of the present invention in which the face body 2 itself does not rotate, it is indispensable to use a light-shielding plate 61 that can be freely opened and closed.

  As shown in FIGS. 5 and 6, the planar shape of the fitting 3 is curved, and a groove 31 is formed inside the curve. The outer peripheral edge of the collar 12 of the baseball cap-type helmet 11 is inserted into the groove 31. Screw fixing holes 32 are formed at the upper edge of the face piece 2 at both ends of the groove 31 and at the bottom at the center. Prior to screwing, it is desirable to bond the joint surface between the metal fitting 3 and the face piece 2 with an adhesive.

  The face piece 2 may be made of leather (including synthetic resin) as well as synthetic resin. Synthetic resin is rigid, so its shape is unchanged, but leather is not rigid, so its shape is variable. Since it is variable, work in a narrow place does not become an obstacle, and workability is improved.

  Compared to the conventional method that pivots on both sides of the helmet and rotates the welding surface itself, the welding surface of the present invention can be made compact, so that it is less restricted by the work place, and workability is reduced. Will improve.

FIG. 2 is a perspective view showing a situation in which a welding surface 1 is fitted to a collar 12 of a helmet 11. It is a front view which shows the Example of the welding surface 1 of this invention. It is a top view which shows the Example of the welding surface 1 of this invention. It is a right view which shows the Example of the welding surface 1 of this invention. It is a top view of the fitting metal fitting 3 attached to the upper edge inner side of the welding surface 1 of this invention. It is a front view of the fitting 3 attached to the inner edge of the welded surface 1 of the present invention.

Explanation of symbols

1 welding surface 2 face piece 3 fitting metal fitting 4 tension member (rubber band)
5 String member 6 Viewing window 11 Helmet 12 Brim 31 of helmet 11 Groove 32, 51 Hole 52 Knot 61 Light shielding plate 62 Spring spring 63 Hinge 64 Knob

Claims (6)

An upper surface of the welding surface, the welding device comprising a viewing window formed so as to wrap around the face of the welding operator, wherein the viewing surface is formed to be openable and closable by rotation of a light shielding plate at the upper center of the outer surface of the surface body. Fixes the fitting between the curved helmet collar fitting (hereinafter referred to as the fitting fitting) attached horizontally and the fitting fitting and the helmet collar attached to the upper ends of the weld surface. A welding surface, comprising: a tension member for converting into a hole; and a string member inserted into holes formed on both sides of the lower edge of the welding surface.   The fitting has a groove in the center of the curved shape, the groove matches the circumference of the helmet collar, and the depth and width of the groove are sufficient to fit the helmet collar. The welding surface according to claim 1, which is formed on the surface.   The welding surface according to claim 1, wherein the helmet is a baseball cap type helmet.   The welding surface according to claim 1, wherein the tension member is formed of a rubber band.   The welding surface according to claim 1, wherein the string member is formed such that a lower part of the welding surface is fixed around a neck of a welding operator so that the length of the string member can be adjusted. The welding surface according to claim 1, wherein the welding surface is made of FRP and / or leather (including artificial leather).

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