JP2000102624A - Tightening band for entire surface forming face body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and appropriately control a pushing force to a face contacting body of an entire surface forming face body by providing right and left pair of head band sections and tape sections respectively connected with the face contacting body at four points and by extendably and contractively constituting the right and left tape sections. SOLUTION: Head band sections H.B forming edge fixing sections E.F at their tip sections formed from recess sections attachable to projections as fixing sections of a face contacting body side are provided at right and left sides of points of a vertex of the face contacting body of an entire surface forming face body. Counter fixing sides of the head bands H.B are unitedly formed by using common fixing parts F.P and polyethylene resins or the like. Tape sections T.P attachable to the right and left side points of a jaw section of the face contacting body are provided, and base sections of each tape section T.P are engaged by attaching to the fixing parts F.P. Buckles B.C made from polypropylene are assembled to each tape section T.P, and extendable members made from thermoplastic polyurethane elastomer or the like and having tips T for drawing are provided at tip sections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a full face mask used for dust masks, gas masks, air supply masks, self-contained respirators, etc., which is connected to a facepiece and adjusts the full face mask to the face. The present invention relates to a lace for mounting and fixing.

[0002]

2. Description of the Related Art Conventionally, a five-point supporting five-point adjusting type or a six-point supporting six-point adjusting type (FIGS. 4 to 6) is generally used for a full-body face strap. This is a design based on the idea of arranging the support portions of the laces at a narrow interval to a certain extent so as to press the entire periphery of the face-to-face portion more evenly on the face.
However, in order to press the entire circumference of the face part more evenly on the face, it is necessary to adjust each support part to have an equal tension. There was a problem that it took. Also,
Conventional laces are entirely made of rubber or rubber woven tape, so if you try to reduce the number of support points with this material, the distance between the laces will decrease with the decrease in the number of support points. Inconvenience that the angle formed at those convergence points is widened, deformation at the time of wearing remains, and the head will fall out during subsequent wearing, or the center of the lace will not be determined even if it does not come off Appears.

FIGS. 4 to 6 show a conventional six-point support, six-point adjustment type full-body face strap binding and an adjustable connection of the strap to a facepiece. FIGS. 4, 5 and 6 illustrate the present invention in FIGS.
This corresponds to (b) and FIG. Conventional laces (FT)
The whole is constituted by an elastic member, the connection structure to the facepiece is a member that is attached to adjust the facepiece,
For example, it is configured to be attached via a buckle (BC) or the like. Therefore, in order to be able to press the entire circumference of the face part more evenly on the face, adjustment is made so that the connection part constituting each support part has an equal tension (the tension force of the adjustment is indicated by an arrow in FIG. 6). .) Needed.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem of the conventional straps,
It is an object of the present invention to solve the problem of how to reduce the number of adjustment points for facilitating the adjustment, and the problem of how to eliminate the residual deformation at the time of mounting due to the decrease in the number of the support points. . In other words, an object of the present invention is to provide a lace which is free from residual deformation at the time of mounting, easy to adjust, and easy to mount.

[0005]

SUMMARY OF THE INVENTION The gist of the present invention is to have an end fixed to the side of the top (the portion in contact with the forehead) of a facepiece of a full facepiece, and having an end near the back of the head ( Left and right elongated headband portions composed of a non-stretchable member converging as a branch portion at a portion corresponding to the whip portion), a fixing member for fixing the headband portion at the converging portion, and fixing to the fixing member Left and right elongated members each comprising an elastic member having one end portion and the other end portion attached to a lower portion of the side edge portion (near the neck portion) of the face object via a member for adjusting the face contact of the face object. A four-point supporting, two-point adjustable full-face face member which is formed of a tape portion and is connected to the facepiece at four places, and is adjustable at two places of left and right elongated tape portions formed of elastic members at the connection portions. Use the straps and Left and right elongated headband portions each having an end fixed to the side portion of the top of the body and formed of a non-stretchable member that converges as a branch at a portion corresponding to the vicinity of the back of the head and the headband portion A four-point supporting two-point adjustable type full-body face strap which is integrally formed with a fixing member for fixing the fixing member at the converging portion. The inventor of the present invention has proposed a headband portion made of a non-stretchable member, which is formed by branching a binding strap for a full-faced body from a fixing member and fixing its end to a side portion of a top of a facepiece of the full-faced facepiece. And a fixing member for fixing the headband portion at the converging portion, and one end fixed to the fixing member, and the other end attached to the lower side edge (near the neck) of the facepiece so that the facepiece of the facepiece can be adjusted. By constituting with the left and right elongated tape portion composed of an elastic member having the other end attached through the member,
This has solved the problem of the present invention. In particular, by integrally molding the headband portion and the fixing member, it is possible to realize a lace for a full-face face body which has good mounting operability and good mounting stability in terms of production.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a full-faced face strap which is realized by the present invention, and includes a fixing member (FP) and an end portion of the fixing piece (FP) which is branched from the fixed face (FP). This example describes a case where a headband portion (HB) made of an elongated non-stretchable member having an end fixing portion (EF) fixed to a side portion is integrally formed. The fixing member side of the headband portion may have the same structure as the end fixing portion, and the headband portion may be separate from the fixing member. The fixing member (FP) and the headband portion are made of a non-stretchable member, for example, a polymer such as polyethylene or polypropylene, or a polyester (PE).
T, PBT, PEN (polyethylene naphthalate)),
It can be formed of a synthetic resin such as a polycondensate such as nylon, a non-stretchable woven fabric, or the like, and the headband portion has an elongated string shape or a tape shape.

[0007] On the other hand, the two-point adjusting side of the strap is fixed at one end to the fixing member (FP), and the other end is located at the lower side edge (near the neck) of the facepiece. It consists of a tape section composed of left and right telescopic members to which the face can be adjusted. The member to which the tape portion is adjustable can be adjusted in length by pulling one end of the elongated member, which is adopted for fastening with an elongated member such as various bands (band pieces), and the pulling is stopped. And fixed by the fixing force generated by its own tension at its length,
A buckle or the like having the illustrated structure can be employed. The tape portion made of an elastic member can be made of a thermoplastic elastomer, an elastomer such as rubber, a rubber fabric, or the like. The part of the tape portion that engages with the member to be adjustably attached includes a surface (smooth surface) for facilitating pulling for adjustment and a friction surface for increasing the fixing force on the opposite side (the tape in the figure). Irregularities provided in the direction perpendicular to the length direction of the part)
It is preferable to adopt a structure in which a 'knob (T)' is provided at the end to facilitate pulling for adjustment.

Since the length of the headband portion of the lace of the present invention is fixed, the substantially movable portion is connected to the elastic member, and the connecting point with the fixed member can be adjusted. And two points on the left and right of the lower side edge (near the neck) of the facepiece attached to the facepiece. The adjustment operation is substantially equivalent to finding a stable surface with three points. It is easy to understand that this is easier than determining a point stability surface. By extending the top of the facepiece slightly toward the head, it was found that the facepiece could be worn more stably. In addition, since the headband portion can be fixed to the side portion of the top of the facepiece by a concave portion and a convex portion that fits into the portion, that is, a hook configuration, the fixing portion can be flat as a whole. Yes, there is an advantage that the combination with a helmet is improved.

FIG. 2 (a) shows the entirety of the lace (a non-stretchable head band portion, a fixing member, and a stretchable tape portion) on the entire face body. In FIG. 1, the buckle is a lace. FIG. 7 is a front view in the case where the headband is not attached, and shows a structure in which ends of a headband portion of a lace are attached to left and right side portions of a vertex of a facepiece. FIG. 2 (b) is a side view of the case in which the lace of the present invention is attached to the entire surface of the face, and the structure in which the end of the headband portion of the lace is attached to the top of the face and the face. An elongated tape portion comprising a member that adjustably attaches the face of the face body to a lower portion of the side edge of the tape member, for example, an elastic member having the other end attached via a buckle (BC); 3 shows a connection structure between a band portion and a tape portion.

FIG. 3 shows the force generated by the adjustment when the full-face face body to which the straps of the present invention are attached is attached to the face and the ends of the left and right tape portions are pulled in the direction A for adjustment. This shows how the information is transmitted to the face part via the string. The force that pulls the tip knob of the tape in the direction A results in tension in the direction B in the left and right tapes, and the tension is fixed to the fixing member to which the tape is connected and the fixing member, or the fixing member. (In this case also included in the concept of being fixed to the fixed part.) Transmitted to the headband part, resulting in tension in the C direction of the headband part, and a force for pressing the entire facepiece against the forehead part Act as Further, since the headband portion is made of a non-stretchable member, it is easier to adjust and transmit the action of the pressing force as compared with a conventional strap which is entirely made of a stretchable member. Is obtained.

[0011]

EXAMPLE 1 As shown in FIG. 1, a concave portion (punched structure) to be fixed to a fixing portion (convex portion) is included at a side portion of the top of a facepiece of a full facepiece. Head band portion (HB) having an end fixing portion (EF) made of the same
And a fixing member (FP) having a projection for fixing the end of the tape member were integrally formed using a polyethylene resin. A concave portion is provided at the tip for engaging with a convex portion formed on the fixing member, and is made of polypropylene to adjustably attach a facepiece of a facepiece attached to a lower side edge portion (near a neck portion) of a facepiece of a full facepiece. It is made of a thermoplastic polyurethane elastomer that has an uneven groove that is provided on one surface and generates a frictional force that generates a fixing force in contact with the buckle, and is provided with a pull 'knob' at the tip, which is attached via a buckle. The left and right elongate tape portions composed of the stretchable members were combined with the convex portion of the fixing member and the concave portion of the tape member to form a lace. This was attached to the facepiece of the full-face face as shown in FIG. 3, and the attached full-face facepiece was attached to the face, and adjusted by pulling the 'knobs' at the tips of the left and right tape members. It was found that the transmission of the action was easy.

[0012]

As described above, the lace of the present invention has an excellent effect that it is easy to adjust the pressing force of the facepiece having a full face and to transmit the action of the pressing force.

[Brief description of the drawings]

FIG. 1 shows an embodiment in which a headband (HB) and a fixing member (FP) of a 'strap' of the present invention are integrally formed.

FIG. 2 (a) is a front view of a full-faced face body to which the 'straps' of the present invention are attached. (B) is a side view of the full-face facepiece to which the 'strap' of the present invention is attached.

FIG. 3 shows a 'shimejime' of the present invention mounted on a full-face facepiece.
FIG. 3 is a diagram schematically showing transmission of force at the time of adjustment.

FIG. 4 is a front view of a full-face face body to which a conventional six-point support and six-point adjustment type strap is attached.

FIG. 5 is a side view of a full-face face body to which a conventional six-point supporting six-point adjustable type lace is attached.

FIG. 6 is a diagram schematically showing a method of adjustment in a conventional 'strap' attached to a full-face facepiece.

[Explanation of symbols]

F. T. Shimestring E. F End fixing part H. B. Headband F.
P Fixing member T. P Tape part B. C buckle T knob

Claims (2)

[Claims] 1. A left-right member having an end portion fixed to a side portion of a top portion of a facepiece of a full-faced face body and a non-stretchable member converging as a branch portion at a portion corresponding to a vicinity of a back head portion. , A fixing member for fixing the headband portion at the converging portion, and an end face fixed to the fixing member and a lower part of a side edge of the facepiece so that the facepiece of the facepiece can be adjusted. A left and right elongated tape portion composed of a left and right elongated tape portion composed of a stretchable member having the other end attached via a member, connected to the facepiece at four locations, and comprising the stretchable member at the connection location. A four-point supporting two-point adjustable full-face lacquer string, which can be adjusted at two points of the tape portion. 2. A left-right member comprising an end fixed to a side portion of a top of a facepiece of a full-faced face body and a non-stretchable member converging as a branch at a portion corresponding to the vicinity of the back of the head. 2. The four-point supporting two-point adjustable full-face flat body according to claim 1, wherein the elongated headband portion and a fixing member for fixing the headband portion at the converging portion are integrally formed. Shimehimo.