JP2014155591A - Belt length adjustment mechanism of head-mounted device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt length adjustment mechanism of a head-mounted device which facilitates operation of the belt length adjustment even when the head-mounted device is mounted on the head, and also facilitates the correct belt length adjustment and the fine belt length adjustment.SOLUTION: In the belt length adjustment mechanism, an operation member 5 which can draw in a belt 2 to an exterior member 3 and draw out the belt 2 from the exterior member 3 is installed by mounting the exterior member 3 to the belt 2 and winding and unwinding a wire 4 to/from the exterior member 3 to adjust the length of the wire 4.

Description

  The present invention relates to various types of faces including dust masks used to prevent invasion of harmful substances such as goggles and dust when sports such as skiing and swimming, and driving a motorcycle. The present invention relates to a belt length adjusting mechanism of a wearing tool.

  Conventionally, in this type of face wearing device, as shown in FIGS. 13 and 14, for example, a pair of left and right belts 12a and 12b are attached to the goggle main body 11, and the lengths of the belts 12a and 12b are adjusted respectively. There is a goggle provided with free fastening bodies 13a, 13b. These fastening bodies 13a and 13b are formed of a pair of annular portions 16 through which the tips forming the cylindrical portions 15a and 15b of the belts 12a and 12b can be inserted, and a pair extending from both sides of the annular portions 16 in the longitudinal direction of the belt. The extending portions 17a, 17b, a pair of locking portions 18a, 18b extending from these extending portions in the width direction of the belt, and an opening 19 formed between the end portions of the locking portions. (Patent Document 1).

  In the case of adjusting the length of the belt, the goggles thus configured are in a state where the other belt 12b is loosened when, for example, one fixing body 13a is moved to an arbitrary position along the one belt 12a. Therefore, in this state, when the other fastening body 13b is moved along the belt 12b, the slack is eliminated, and the length of the belt can be easily adjusted.

  Further, in this type of face wearing device, for example, as shown in FIGS. 15 and 16, the frame 21 is provided with a belt portion 22, and the frame 21 is engaged with the belt portion 22. There is a goggle provided with the part 23 as a separate body or as one body. The belt portion 22 is provided with a plurality of protrusions 24 that engage with the engaging portion 23. The engaging portion 23 is formed with an insertion hole 25 into which the belt portion 22 is inserted and a fitting groove 26 into which the protrusion portion 24 of the belt portion 22 is fitted. And in the said belt part 22, the said projection part 24 shall be formed in the width direction of the belt part 22 (patent document 2).

  When the length of the belt portion 22 is adjusted, the goggles thus configured are released from the fixed state when the protrusion 24 of the belt portion 22 inserted from the insertion hole 25 of the engagement portion 23 is operated in a direction away from the insertion groove 26. Since the belt part 22 can be displaced, it is said that the conventional force is not required at the time of wearing.

Utility Model Registration No. 3142227 Japanese Patent No. 45777547

  However, in the face wearing device as described above, the belt length adjustment is easy to operate when the face wearing device is detached from the face, but in the state where the face wearing device is worn on the face. Is not so easy to operate.

  In other words, in the face wearing device as described above, the length of the belt is required unless the fastening bodies 13a, 13b or the engaging portion 23 are held by one hand and the belts 12a, 12b or the belt portion 22 are held by the other hand. However, it is easy to operate when the face wearing device is removed from the face, but it is difficult to operate when the face wearing device is attached to the face. It was.

  Further, in the face wearing device as described above, the belt length is adjusted by moving the fastening body 13a to an arbitrary position along the belt 12a depending on intuition, so that the belt length is accurately adjusted. There was a problem that could not be done.

  Further, in the face wearing device as described above, the plurality of protrusions 24 provided on the belt portion 22 must be engaged with the engaging portion 23 in order, and the fine adjustment of the belt length is easy. I had a problem that I could not.

  Therefore, the present invention makes it easy to adjust the length of the belt even when the face wearing device is attached to the face, and makes it easy to accurately adjust the belt length and finely adjust the belt length. The object of the present invention is to provide a belt length adjusting mechanism for a face wearing tool that can be used.

  The belt length adjusting mechanism of the face wearing tool according to the present invention adjusts the length of the wire 4 by attaching the exterior member 3 to the belt 2 and winding or unwinding the wire 4 on the exterior material 3. By doing so, the operation member 5 is installed so that the belt 2 can be pulled into the outer member 3 or pulled out from the outer member 3.

  In the belt length adjusting mechanism of the face wearing tool according to the present invention, the belt 2 is a two-part body of a belt 2a and a belt 2b.

  In the belt length adjusting mechanism of the face wearing device according to the present invention, the wire 4 is wired in a substantially U shape in one direction, and the substantially U-shaped folded end portion 4a of the wire 4 is connected to the belt 2a. It is hung on a hanging body 7 provided at one end.

  In the belt length adjusting mechanism of the face wearing tool according to the present invention, the wire 4 is wired substantially linearly in one direction, and one end 4b of the wire 4 is connected to one end of the belt 2a. It is connected.

  In the belt length adjusting mechanism for a face wearing tool according to the present invention, the wire 4 has two wires arranged substantially linearly in one direction, and one end 4b of the wire 4 is connected to one end of the belt 2a. Each part is connected.

  In the belt length adjusting mechanism for a face wearing tool according to the present invention, the wire 4 is wired substantially linearly in two opposing directions, and one end 4b of the wire 4 is connected to the belt 2a. 2b is connected to one end of each.

  In the belt length adjusting mechanism of the face wearing tool according to the present invention, the wire 4 is wired in a substantially U shape in two opposing directions, and the substantially U-shaped folded end 4a of the wire 4 in the one direction. Is hung on a hanging body 7 provided at one end of the belt 2a, one end 4b of the wire 4 is fixed to the operation member 5 of the exterior member 3, and the substantially U-shape of the wire 4 in the other direction is fixed. The folded end portion 4a is hung on a hanging body 7 provided at one end portion of the belt 2b, and the one end portion 4b of the wire 4 is fixed near the operation member 5 of the exterior member 3.

  In the belt length adjusting mechanism of the face wearing tool according to the present invention, the wire 4 is wired in a substantially U shape in two opposing directions, and the substantially U-shaped folded end 4a of the wire 4 in the one direction. Is hung on a hanging body 7 provided at one end of the belt 2a, and the substantially U-shaped folded end portion 4a of the wire 4 in the other direction is hung on the hanging body 7 provided at one end of the belt 2b. doing.

  In the belt length adjusting mechanism of the face wearing tool according to the present invention, the wire 4 is wired in two substantially straight lines in two opposite directions, and one end 4b of the wire 4 is connected to the belt 2a. 2b is connected to one end of each.

  In the belt length adjusting mechanism of the face wearing tool according to the present invention, the wire 4 is wired in a substantially U shape in two opposing directions, and the substantially U-shaped folded end 4a of the wire 4 in the one direction. Is hung on a hanging body 7 provided at one end of the belt 2, and the substantially U-shaped folded end 4 a of the wire 4 in the other direction is hung on the hanging body 7 provided at the other end of the belt 2. It is built.

  In the belt length adjusting mechanism of the face wearing tool according to the present invention, the wire 4 is wired in two substantially straight lines in two opposing directions, and one end portion 4b of the wire 4 in the one direction is provided. One end 4 b of the wire 4 in the other direction is connected to the other end of the belt 2.

  In the belt length adjusting mechanism of the face wearing tool according to the present invention, the operation member 5 is provided with a pulley 8 inside the main body 5a, and the pulley 8 is rotated clockwise or counterclockwise by a knob 9 provided outside the main body 5a. By rotating clockwise, the wire 4 is wound around the pulley 8 or unwound from the pulley 8 to adjust the length of the wire 4.

  In the belt length adjusting mechanism for a face wearing tool according to the present invention, the operation member 5 includes a ratchet mechanism 10 including a round ratchet tooth 10 a provided on the main body 5 a and a claw 10 b provided on the knob 9.

  The belt length adjusting mechanism of the face wearing tool according to the present invention is configured as described above, and adjusts the length of the wire 4 by winding or unwinding the wire 4 by the operation member 5. As a result, the belt 2 can be drawn into or pulled out from the exterior member 3, and therefore, the belt length can be easily adjusted even when the face wearing device is worn on the face.

  Further, the belt length adjusting mechanism of the face wearing device according to the present invention is configured to accurately adjust the belt length and to finely adjust the belt length by gradually rotating the pulley 8 of the operation member 5 with the knob 9. Adjustment is now easy.

It is a perspective view of the face wearing tool provided with the belt length adjustment mechanism of this invention. It is a top view of the face wearing tool provided with the belt length adjustment mechanism of this invention. It is explanatory drawing which looked at 1st embodiment of the belt length adjustment mechanism of this invention from the side, (a) shows the state which adjusted the belt long, (b) has shown the state which adjusted the belt short. . It is explanatory drawing which looked at 2nd embodiment of the belt length adjustment mechanism of this invention from the side, (a) shows the state which adjusted the belt long, (b) has shown the state which adjusted the belt short. . It is explanatory drawing which looked at 3rd embodiment of the belt length adjustment mechanism of this invention from the side, (a) shows the state which adjusted the belt long, (b) has shown the state which adjusted the belt short. . It is a perspective view of the state which decomposed | disassembled the principal part of the operation member of the belt length adjustment mechanism of this invention. It is explanatory drawing which looked at 4th embodiment of the belt length adjustment mechanism of this invention from the side, and has shown the state which adjusted the belt long. It is explanatory drawing which looked at 5th embodiment of the belt length adjustment mechanism of this invention from the side, and has shown the state which adjusted the belt long. It is explanatory drawing which looked at 6th embodiment of the belt length adjustment mechanism of this invention from the side, and has shown the state which adjusted the belt long. It is explanatory drawing which looked at 7th embodiment of the belt length adjustment mechanism of this invention from the side, and has shown the state which adjusted the belt long. It is explanatory drawing which looked at 8th embodiment of the belt length adjustment mechanism of this invention from the side, and has shown the state which adjusted the belt long. It is explanatory drawing which looked at 9th embodiment of the belt length adjustment mechanism of this invention from the side, and has shown the state which adjusted the belt long. It is a perspective view which shows an example of the face mounting tool provided with the conventional belt length adjustment mechanism. FIG. 14 is an exploded perspective view of the conventional belt length adjusting mechanism shown in FIG. 13. It is a perspective view which shows the other example of the face mounting tool provided with the conventional belt length adjustment mechanism. FIG. 16 is an exploded perspective view of the conventional belt length adjusting mechanism shown in FIG. 15.

  Hereinafter, the form for implementing the belt length adjustment mechanism of the face wearing tool of this invention is demonstrated in detail based on drawing.

  1 and 2 show ski goggles as a face wearing device equipped with the belt length adjusting mechanism of the present invention. The lens frame 1 is worn on both ends of the user's head. The belt 2 is attached. The belt 2 is provided with a belt length adjusting mechanism A.

  The belt length adjustment mechanism A has an exterior member 3 attached to the belt 2, and the length of the wire 4 is adjusted by winding or unwinding the wire 4 on the exterior material 3. Thus, it is assumed that the operation member 5 is installed so that the belt 2 can be pulled into or pulled out of the exterior member 3. The operation member 5 of the belt length adjusting mechanism A is installed on the front side of the exterior member 3 so as to be positioned on the temporal region or the back region of the wearer of the face wearing device.

  The belt 2 shown in FIGS. 1 to 5 is a bifurcated body of a belt 2a and a belt 2b. One end of one belt 2a is slidable at one end of the exterior member 3, and this belt The other end of 2a is connected to one end of the lens frame 1, the other end of the other belt 2b is connected to the other end of the exterior member 3, and the other end of the belt 2b is connected to the lens frame 1. It is connected to the other end. Although not shown, the belt 2 is integrated without being divided into two halves 2a and 2b, one end of which is slidable at one end of the exterior member 3, and the other end is fixed to the lens frame 1. The other end of the exterior member 3 may be connected to the other end of the lens frame 1. The belt 2 may be stretched over the wearer's head, and may be a stretchable body or a non-stretchable body. However, the vertical width of 10 to 55 mm is easy to slide. It is preferable in terms of

  Although the illustrated exterior member 3 has a flat cylindrical shape, the outer member 3 is not limited to a cylindrical shape as long as it can be attached to the outside of the belt 2, and may take any form, It can be used as a sewn product such as leather, or can be a molded product of rubber or synthetic resin, and the belt 2 is easy to slide and has enough strength not to be deformed due to wrinkles. Good. And this exterior member 3 shall adjust the length for which the belt 2 was slid by sliding the belt 2 in one end part, and it is enough if the length adjustment of this belt 2 can be 100-200 mm. Therefore, the length of the exterior member 3 can be set to 150 to 250 mm in consideration of the installation space of the operation member 5, but can be further increased according to the degree of length adjustment of the belt 2, It can be shortened.

  The wire 4 is a non-stretchable body such as a wire, string, or cable. In the case shown in FIGS. 1 to 3, the wire 4 is wired in a substantially U shape in one direction. The operation member 5 installed near the connecting end of the belt 2b on the front side is wound into the main body 5a from two positions on one side of the main body 5a, or is unwound from the main body 5a. The wire 4 is passed through the exterior member 3 through a through hole 6 provided on the front side of the exterior member 3, and a substantially U-shaped folded end 4a is provided at one end of the belt 2a. Hanging on the body 7. Although not shown, the wire 4 can be wound into the main body 5a from two places at the bottom of the main body 5a of the operation member 5 or unwound from the main body 5a. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  The wire 4 shown in FIG. 4 is wired substantially linearly in one direction, and this wire 4 is installed near the connecting end of the belt 2b on the front side of the exterior member 3. In addition, the operation member 5 is wound into the main body 5a from one position on one side of the main body 5a, or unwound from the main body 5a. And the said wire 4 is penetrated in this exterior member 3 from the through-hole 6 provided in the front side of the said exterior member 3, The one end part 4b is connected with the one end part of the said belt 2a. Although not shown, the wire 4 can be wound into the main body 5a from one place on the bottom of the main body 5a of the operating member 5 or unwound from the main body 5a. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  In the case of the wire 4 shown in FIG. 5, two wires are arranged substantially linearly in one direction, and these wires 4 are installed near the connecting end of the belt 2 b on the front side of the exterior member 3. The operation member 5 is wound into the main body 5a from two locations on one side of the operation member 5 or unwound from the main body 5a. And the said wire 4 is penetrated in this exterior member 3 from the through-hole 6 provided in the front side of the said exterior member 3, and each one end part 4b is connected with the one end part of the said belt 2a, respectively. Although not shown, the wire 4 can be wound into the main body 5a from two places at the bottom of the main body 5a of the operation member 5 or unwound from the main body 5a. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  As shown in FIG. 6, the operation member 5 is provided with a pulley 8 inside the main body 5a, and the pulley 8 is rotated clockwise or counterclockwise by a knob 9 provided outside the main body 5a. Thus, the length of the wire 4 is adjusted by winding the wire 4 around the pulley 8 or unwinding from the pulley 8, and the belt 2 can be drawn into the exterior member 3 or pulled out from the exterior member 3. I am doing so. The operation member 5 includes a ratchet mechanism 10 including a round ratchet tooth 10a provided on the main body 5a and a claw 10b provided on the knob 9 so that the wire 4 can be gradually wound. The operation member 5 locks the round ratchet teeth 10a and the claws 10b so that the pulley 8 is not rotated in a state where the wire 4 is wound around the pulley 8, and the wire 4 wound around the pulley 8 is locked. When unraveling, the lock between the round ratchet teeth 10a and the claws 10b is released so that the pulley 8 rotates. Although the detailed structure of the operation member 5 is omitted, examples of the operation member having such a structure include Japanese Patent No. 4514383, Japanese Patent No. 5048096, US Pat. No. 7,954,204, US There are those shown in Japanese Patent No. 8277401.

  Further, in the belt 2a shown in FIGS. 7 to 10, the belt 2 is divided into two parts, a belt 2a and a belt 2b. One end of one belt 2a is slidable at one end of the exterior member 3, and the belt 2a. The other end of the belt 2b is connected to one end of the lens frame 1, the other end of the other belt 2b is slidable at the other end of the exterior member 3, and the other end of the belt 2b is connected to the lens frame 1. It is connected to the other end. The belt 2 may be stretched over the wearer's head, and may be a stretchable body or a non-stretchable body. However, the vertical width of 10 to 55 mm is easy to slide. It is preferable in terms of

  Although the illustrated exterior member 3 has a flat cylindrical shape, the outer member 3 is not limited to a cylindrical shape as long as it can be attached to the outside of the belt 2, and may take any form, It can be used as a sewn product such as leather, or can be a molded product of rubber or synthetic resin. The belts 2a and 2b are easy to slide and have such strength that they do not deform due to wrinkles. It only has to be. The exterior member 3 is configured such that the belts 2a and 2b are slid at both ends, and the length of the slidable belts 2a and 2b is adjusted. Since it is sufficient that each can be 50 to 100 mm, the length of the exterior member 3 can be set to 150 to 250 mm in consideration of the installation space of the operation member 5, but the length of the belt 2 can be adjusted. Depending on the situation, it can be made longer or shorter.

  The wire 4 is a non-stretchable body such as a wire, string, cable, etc., and in the case shown in FIG. 7, the wires 4 are arranged in a straight line in two opposite directions one by one. Each of the opposing side portions of the operation member 5 installed at a substantially central portion on the front side of the exterior member 3 is wound into the main body 5a or unwound from the main body 5a. And the said wire 4 is penetrated in this exterior member 3 from the through-hole 6 provided in the front side of the said exterior member 3, and each one end part 4b is connected with the one end part of the said belts 2a and 2b, respectively. . Although not shown, the wire 4 can be wound into the main body 5a from two places at the bottom of the main body 5a of the operation member 5 or unwound from the main body 5a. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  In FIG. 8, the wire 4 is arranged in a substantially U shape in two opposing directions, and these wire members 4 are installed at a substantially central portion on the front side of the exterior member 3. 5 is wound into the main body 5a from one position on each of the opposite sides of the main body 5 or unwound from the main body 5a. The one-way wire 4 is passed through the exterior member 3 through a through hole 6 provided on the front side of the exterior member 3, and a substantially U-shaped folded end 4a is provided at one end of the belt 2a. The one end 4b of the wire 4 is fixed near the operation member 5 of the exterior member 3, and the substantially U-shaped folded end 4a of the wire 4 in the other direction is fixed to the belt 2b. The one end portion 4b of the wire rod 4 is fixed near the operation member 5 of the exterior member 3. Further, although not shown, each end 4b of the wire 4 may be fixed to the main body 5a of the operation member 5 without being fixed near the operation member 5 of the exterior member 3. Although not shown, the wire 4 can be wound into the main body 5a from two places at the bottom of the main body 5a of the operation member 5 or unwound from the main body 5a. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  In FIG. 9, the wire 4 is wired in a substantially U shape in two opposite directions, and these wire rods 4 are installed at a substantially central portion on the front side of the exterior member 3. 5 is wound into the main body 5a from each of two opposite sides, or unwound from the main body 5a. The wire 4 passes through the exterior member 3 from a through hole 6 provided on the front side of the exterior member 3, and the substantially U-shaped folded end portion 4a of the wire 4 in one direction is connected to one end of the belt 2a. A substantially U-shaped folded end 4a of the wire 4 in the other direction is hung on a hanging body 7 provided at one end of the belt 2b. Although not shown in the drawing, the wire 4 can be wound into the main body 5a from the four positions on the bottom of the main body 5a of the operation member 5 or unwound from the main body 5a. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  In the case of the wire 4 shown in FIG. 10, two wires are arranged in a substantially straight line in two opposing directions, and these wires 4 are installed at a substantially central portion on the front side of the exterior member 3. The operation member 5 is wound into the main body 5a from two opposite sides, or unwound from the main body 5a. And the said wire 4 is penetrated in this exterior member 3 from the through-hole 6 provided in the front side of the said exterior member 3, and each one end part 4b is connected with the one end part of the said belts 2a and 2b, respectively. . Although not shown in the drawing, the wire 4 can be wound into the main body 5a from the four positions on the bottom of the main body 5a of the operation member 5 or unwound from the main body 5a. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  Further, the belt 2 shown in FIG. 11 is integrated with the belt 2a and the belt 2b without being divided into two parts, and includes the two exterior members 3, and both end portions of the belt 2 are provided. Each exterior member 3 is slidable at one end, and the other end of each exterior member 3 is connected to both ends of the lens frame 1. The belt 2 may be stretched over the wearer's head, and may be a stretchable body or a non-stretchable body. However, the vertical width of 10 to 55 mm is easy to slide. It is preferable in terms of

  Although the illustrated exterior member 3 has a flat cylindrical shape, the outer member 3 is not limited to a cylindrical shape as long as it can be attached to the outside of the belt 2, and may take any form. It can be used for sewing products such as leather and leather, or it can be a molded product of rubber or synthetic resin, etc., and the belt 2 is easy to slide, and has enough strength to prevent deformation due to wrinkles. That's fine. And this exterior member 3 shall slide the belt 2 in each one end part, and shall adjust the length for which the said belt 2 was slid, If the length adjustment of this belt 2 can be 100-200 mm Since it is sufficient, the length of the exterior member 3 can be set to 100 to 150 mm in consideration of the installation space of the operation member 5. However, the length of the exterior member 3 is longer depending on the degree of the length adjustment of the belt 2. Or shorten it.

  The wire 4 is a non-stretchable body such as a wire, string, or cable. In the case shown in FIG. 11, the wire 4 is wired in a substantially U shape in two opposite directions. The outer member 3 is wound into the main body 5a from two opposite side portions of the operation member 5 installed near the connecting end of the lens frame 1 on the front side of the exterior member 3, and is unwound from the main body 5a. Like to do. The wire 4 is passed through the exterior members 3 from the respective through holes 6 provided on the front side of the exterior member 3, and the substantially U-shaped folded end 4 a of the one-way wire 4 is passed through the belt 2. A substantially U-shaped folded end 4a of the wire 4 in the other direction is hung on the hanging body 7 provided at the other end of the belt 2. Although not shown in the drawing, the wire 4 is wound into the main body 5a from each of two bottom portions of the main body 5a of the two operation members 5 or unwound from the main body 5a. You can also. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  In FIG. 12, the wire rods 4 are arranged in two substantially opposite lines in two opposite directions, and these wire rods 4 are connected to the lens on the front side of each of the two exterior members 3. The operation member 5 installed near the connecting end of the frame 1 is wound into the main body 5a from two opposite sides of the operation member 5 or unwound from the main body 5a. The wire 4 passes through the exterior members 3 from the through holes 6 provided on the front side of the exterior member 3, and the one end 4 b of the one-way wire 4 is connected to the one end of the belt 2. And one end 4 b of the wire 4 in the other direction is connected to the other end of the belt 2. Although not shown in the drawing, the wire 4 is wound into the main body 5a from each of two bottom portions of the main body 5a of the two operation members 5 or unwound from the main body 5a. You can also. In this case, the position where the through hole 6 is provided in the exterior member 3 can be below the main body 5 a of the operation member 5, and a part of the wire 4 and the through hole 6 are on the front side of the exterior member 3. It will not be exposed and will not stand out.

  In any of the illustrated embodiments, the belt length adjusting mechanism of the face wearing device of the present invention configured as described above is in a state in which the face wearing device is worn on the face when adjusting the belt length. The belt 2 is drawn into the exterior member 3 by adjusting the length of the wire 4 by winding or unwinding the wire 4 with the operation member 5 located on the side or back of the wearer, It can be pulled out.

  Therefore, the belt length adjusting mechanism of the face wearing device according to the present invention allows the belt length to be adjusted not only when the face wearing device is detached from the face but also when the face wearing device is worn on the face. It became easy.

  Further, the belt length adjusting mechanism of the face wearing tool according to the present invention is configured so that the pulley 8 of the operation member 5 positioned on the wearer's temporal region or the back of the head is gradually moved by the knob 9 when the face wearing device is attached to the face. The belt 2 can be gradually drawn into or pulled out of the exterior member 3 by adjusting the length of the wire 4 by gradually winding or unwinding the wire 4 by rotating.

  Therefore, the belt length adjusting mechanism of the face wearing device of the present invention is not limited to the state in which the face wearing device is removed from the face, but also in the state in which the face wearing device is worn on the face, In addition, the belt length can be easily finely adjusted.

2 belt 2a belt 2b belt 3 exterior member 4 wire 4a substantially U-shaped folded end 4b one end 5 operation member 5a main body 7 hanging body 8 pulley 9 knob 10 ratchet mechanism 10a round ratchet tooth 10b claw

Claims (13)

  By attaching the exterior member (3) to the belt (2) and winding or unwinding the wire (4) into the exterior material (3), and adjusting the length of the wire (4), A belt length adjusting mechanism for a face wearing device, characterized in that an operation member (5) adapted to draw the belt (2) into the exterior member (3) or to be pulled out from the exterior member (3) is installed.   The belt length adjusting mechanism for a face wearing device according to claim 1, wherein the belt (2) is a two-part body comprising a belt (2a) and a belt (2b).   The wire (4) is wired in a substantially U shape in one direction, and a hook having a substantially U-shaped folded end (4a) of the wire (4) provided at one end of the belt (2a). The belt length adjusting mechanism for a face wearing device according to claim 2, wherein the belt length adjusting mechanism is hung on the body (7).   The wire (4) is wired in a substantially straight line in one direction, and one end (4b) of the wire (4) is connected to one end of the belt (2a). The belt length adjusting mechanism for a face wearing device according to claim 2.   The wire (4) has two wires arranged substantially linearly in one direction, and each one end (4b) of the wire (4) is connected to one end of the belt (2a). The belt length adjusting mechanism for a face wearing device according to claim 2, wherein   The wire (4) is wired in a substantially straight line in two opposing directions, and one end (4b) of the wire (4) is connected to one end of the belt (2a, 2b). The belt length adjusting mechanism for a face wearing device according to claim 2, wherein the belt length adjusting mechanism is connected to each other.   The wire (4) is wired in a substantially U shape in two opposing directions, and the substantially U-shaped folded end (4a) of the wire (4) in the one direction is connected to one end of the belt (2a). It is hung on a hanging body (7) provided in the section, one end (4b) of this wire (4) is fixed near the operating member (5) of the exterior member (3), and the wire material in the other direction ( 4) A substantially U-shaped folded end (4a) is hung on a hanging body (7) provided at one end of the belt (2b), and one end (4b) of the wire (4) is attached to the exterior member. The belt length adjusting mechanism for a face wearing device according to claim 2, wherein the belt length adjusting mechanism is fixed to the operation member (5) of (3).   The wire (4) is wired in a substantially U shape in two opposing directions, and the substantially U-shaped folded end (4a) of the wire (4) in the one direction is connected to one end of the belt (2a). A hanging body (7) which is hung on a hanging body (7) provided at the portion, and a substantially U-shaped folded end portion (4a) of the wire (4) in the other direction is provided at one end portion of the belt (2b). The belt length adjusting mechanism for a face wearing device according to claim 2, wherein   The wire (4) has two wires arranged substantially linearly in two opposing directions, and each end (4b) of the wire (4) is connected to one end of the belt (2a, 2b). The belt length adjusting mechanism for a face wearing device according to claim 2, wherein the belt length adjusting mechanism is connected to each other.   The wire (4) is wired in a substantially U shape in two opposing directions, and the substantially U-shaped folded end (4a) of the wire (4) in the one direction is connected to one end of the belt (2). A hanging body (7) provided on the belt (2), and a substantially U-shaped folded end (4a) of the wire (4) in the other direction provided on the other end of the belt (2) ( 7. The belt length adjusting mechanism for a face wearing device according to claim 1, wherein the belt length adjusting mechanism is hung on 7).   The wire (4) has two wires arranged substantially linearly in two opposite directions, and one end (4b) of the wire (4) in the one direction is connected to one end of the belt (2). 2. The face wearing device according to claim 1, wherein one end (4 b) of each of the wires (4) in the other direction is connected to the other end of the belt (2). Belt length adjustment mechanism.   The operation member (5) is provided with a pulley (8) inside the main body (5a), and the pulley (8) is rotated clockwise or counterclockwise by a knob (9) provided outside the main body (5a). The wire (4) is wound around the pulley (8) or unwound from the pulley (8) by rotating the wire (4) to adjust the length of the wire (4). The belt length adjustment mechanism of the face wearing tool according to any one of claims 1 to 11. The operation member (5) includes a ratchet mechanism (10) including a round ratchet tooth (10a) provided on the main body (5a) and a claw (10b) provided on the knob (9). The belt length adjusting mechanism for a face wearing device according to claim 12.

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