JP6969735B2 - Chest protector - Google Patents

Description

The present invention relates to a chest protector that protects the wearer's chest.

As in Patent Document 1, there is known a chest protector that is detachably attached to the inside of the wearer's body to protect the wearer's chest.

Japanese Patent No. 2885194

If the chest protector is placed so as to cover the entire wearer's chest with one covering, the chest protector will cover the wearer's chest even if the wearer's chest fastener is lowered, such as during breaks. There is little breathability in the chest. When removing the chest protector to keep cool, it is necessary to take off the wearer, which is troublesome.

It is an object of the present invention to provide a chest protector that can be easily attached and detached.

Chest protectors that solve the above problems are a left covering that covers the left side of the wearer's chest and has a right end, and a covering that covers the right side of the wearer's chest and the left end. Each of the coverings is a laminate including a front member and a back member, and each of the coverings has an insertion recess arranged at the end of each of the coverings. It is provided with an insertion portion arranged at the end portion of each of the covering bodies and inserted into the insertion recess of the other covering body.

According to such a configuration, the left side covering and the right side covering can be easily separated by simply inserting and removing the insertion portion from the insertion recess. Further, by providing the front member and the back member, the strength as a chest protector can be increased.

In the chest protector, when the insertion portion is inserted into the insertion recess, a force is applied to bend the insertion portion so as to protrude from the back to the front with respect to the portion inserted into the insertion recess. It may be configured to allow the insertion portion to come out of the insertion recess when it is added.
According to such a configuration, the insertion portion is easily pulled out from the insertion recess by applying a bending force so that the insertion portion protrudes from the back to the front with respect to the portion inserted into the insertion recess. be able to.

In the chest protector, the insertion portion is composed of a first projecting piece protruding from each of the front member and the back member toward the other covering body at the end portion of each covering body. The insertion recess is a second projecting piece between the first projecting pieces at the end of each covering and protruding from each of the front member and the back member toward the other covering. It may be configured between.
According to such a configuration, the insertion portion and the insertion recess can be easily provided only by providing the protrusion pieces on the front member and the back member.

In the chest protector, the insertion recess is provided with an engaging portion on a surface facing the insertion portion with the insertion portion inserted, and the insertion portion is inserted into the insertion recess. In this state, an engaged portion with which the engaging portion engages is provided on a surface facing the surface of the insertion recess provided with the engaging portion, and the insertion portion is inserted into the insertion recess. When a force is applied to bend the insertion portion so as to protrude from the back to the front with respect to the portion inserted into the insertion recess, the engaging portion and the engaged portion are engaged. May be configured to be located at a portion where the gap between the insertion portion and the insertion recess is widened and to be disengaged.
According to such a configuration, the engaging portion and the engaged portion are engaged by applying a bending force so that the insertion portion protrudes from the back to the front with respect to the portion inserted into the insertion recess. Is released, and the insertion portion can be easily pulled out from the insertion recess.

In the chest protector, the engaging portion is arranged on the back surface of the first protruding piece included in the front member of the insertion recess, and the engaged portion is included in the front member of the insertion portion. It may be configured to be arranged on the surface of the second projecting piece.
According to such a configuration, the engaging portion and the engaged portion are engaged by applying a bending force so that the insertion portion protrudes from the back to the front with respect to the portion inserted into the insertion recess. Is released, and the insertion portion can be easily pulled out from the insertion recess. Further, when a bending force is applied from the front to the back, the facing surfaces are pushed against each other, and the engagement between the engaged portion and the engaged portion is maintained. As a result, the insertion portion is difficult to pull out from the insertion recess, and the left side covering and the right side covering are difficult to separate.

According to the present invention, it is possible to provide a chest protector capable of weight reduction.

The perspective view of the chest protector of this embodiment. The front view which shows the state which separated the left side covering body and the right side covering body of the chest protector of this embodiment. An exploded perspective view of the chest protector of this embodiment as viewed from the front side. An exploded perspective view of the chest protector of the present embodiment as viewed from the back side. The perspective view which shows the insertion part and the insertion recess in the left side covering body and the right side covering body. It is a figure explaining the hollow structure constituting the covering body of this embodiment, (a) is the perspective view which shows the hollow structure, (b) is the β-β line sectional view in (a), (c). Is a cross-sectional view taken along the line γ-γ in (a). (A)-(c) is a figure explaining the molding process of the hollow structure of this embodiment. Sectional drawing of the chest protector of this embodiment.

Hereinafter, the chest protector that embodies the present invention will be described with reference to the drawings. In the present specification, the top / bottom, front / back, and left / right are based on the top / bottom, front / back, and left / right as seen from the wearer.

As shown in FIG. 1, the chest protector 10 is worn inside a wearing body 1 such as a rider jacket, and protects the wearer's chest from the front side. The chest protector 10 includes a left side covering 11L that covers the left side portion of the wearer's chest and a right side covering 11R that covers the right side portion of the wearer's chest. The left side covering body 11L and the right side covering body 11R are configured to be split into left and right on the front surface of the wearer's chest. A wearing belt 2 is attached to the chest protector 10. Hereinafter, the left side covering body 11L and the right side covering body 11R are collectively referred to as a covering body 11.

The mounting belt 2 is attached to the left side mounting portion 3L with respect to the left side covering 11L and the right side mounting portion 3R with respect to the right side covering 11R. The left side mounting portion 3L and the right side mounting portion 3R are members for mounting the mounting belt 2 to the left side covering body 11L and the right side covering body 11R. The mounting belt 2 includes a left shoulder belt portion 4L extending from the left mounting portion 3L and hung on the wearer's left shoulder, and a right shoulder belt portion 4R extending from the right mounting portion 3R and hung on the wearer's right shoulder. Further, the mounting belt 2 includes a circumferential belt portion 5 extending from the left side mounting portion 3L and the right side mounting portion 3R so as to pass through the back portion. Further, the wearing belt 2 includes a back belt portion 6 that connects the left shoulder belt portion 4L, the right shoulder belt portion 4R, and the circumferential belt portion 5 on the back of the wearer.

As shown in FIG. 2, the chest protector 10 can divide the left side covering body 11L and the right side covering body 11R into left and right on the front surface of the wearer's chest. The left side insertion recess 13L and the left side insertion portion 12L are alternately arranged in the vertical direction at the right end portion of the left side covering 11L, which is the center of the wearer's chest and extends in the vertical direction. Further, the right side insertion portion 12R and the right side insertion recess 13R are alternately arranged in the vertical direction at the left end portion of the right side covering 11R, which is the center of the wearer's chest and extends in the vertical direction. However, the order in which the left side insertion portion 12L and the left side insertion recess 13L are arranged in the left side covering 11L and the order in which the right side insertion part 12R and the right side insertion portion 13R are arranged in the right side covering portion 11R are reversed. As a result, the left side insertion portion 12L can be inserted into the right side insertion recess 13R, and the right side insertion portion 12R can be inserted into the left side insertion recess 13L.

As shown in FIGS. 3 and 4, the left side covering 11L is a laminated body in which two plates are stacked, and includes a left side front member 14L and a left side back member 15L that are vertically stacked. The right-side covering body 11R is also a laminated body in which two plate bodies are stacked, and includes a right-side front member 14R and a right-side back member 15R that are vertically stacked. Hereinafter, the left front member 14L and the right front member 14R are collectively referred to as a front member 14, and the left back member 15L and the right back member 15R are collectively referred to as a back member 15.

The front member 14 and the back member 15 are molded bodies of synthetic resin such as thermoplastic resin, and are structures provided with a hollow structure such as a honeycomb core structure inside. Such a hollow structure is lightweight, has a light weight on the wearer, and exhibits excellent shock absorption as a protector. Further, the front member 14 and the back member 15 have a curved shape that follows the shape of the wearer's chest and covers from the front central portion to the side portion of the chest. The front member 14 includes a first surface 14A constituting the surface of the chest protector 10 and a first back surface 14B which is a back surface opposite to the first surface 14A and faces the back member 15. Further, the back member 15 includes a second front surface 15A facing the first back surface 14B and a second back surface 15B which is opposite to the second surface 15A and constitutes the back surface of the chest protector 10.

In order to connect the front member 14 and the back member 15 in a stacked state, the front member 14 is provided with a front side coupling hole 16S penetrating from the first surface 14A to the first back surface 14B. Further, the back member 15 includes a back side coupling hole 16B penetrating from the second front surface 15A to the second back surface 15B. The front side coupling hole 16S and the back side connection hole 16B are located on the opposite side of the front member 14 and the back member 15 from the side where the insertion portion 12 and the insertion recess 13 are arranged, that is, above and below the edge portion located on the side of the chest. It is located near the corner of the. The front side coupling hole 16S and the back side coupling hole 16B overlap when the front member 14 and the back member 15 are overlapped with each other, and the coupling pin 17 is inserted therethrough. The front member 14 and the back member 15 are coupled by caulking the coupling pin 17 at the positions of the front coupling hole 16S and the back coupling hole 16B.

Further, in order to connect the front member 14 and the back member 15 in a stacked state and to insert a connecting belt 7 (see FIG. 1) for attaching the mounting portion 3 to the covering body 11, the front member 14 has a first surface. It is provided with a front side insertion hole 18S penetrating from 14A to the first back surface 14B. Further, the back member 15 includes a back side insertion hole 18B penetrating from the second front surface 15A to the second back surface 15B. The front side insertion hole 18S and the back side insertion hole 18B each have a rectangular shape as an example in the front member 14 and the back member 15. Two of them are provided side by side in the vertical direction at a position close to the end where the insertion portion 12 and the insertion recess 13 are arranged. The front side insertion hole 18S and the back side insertion hole 18B are provided at positions where the front member 14 and the back member 15 overlap each other when they are overlapped. As an example, the coupling belt 7 is a tape member provided with a hook-and-loop fastener having a locking portion at a base end portion. In the coupling belt 7, the locking portion of the base end portion is locked to the upper back side insertion hole 18B, the tip portion is inserted in the order of the upper back side insertion hole 18B and the front side insertion hole 18S, and then the tip portion is lowered. It is inserted from the front side insertion hole 18S to the back side insertion hole 18B and extends on the front member 14. Then, the tip portion is wound around the lower end portions of the front member 14 and the back member 15, and is coupled to the coupling belt 7 extending on the front member 14 on the front member 14. Further, the coupling belt 7 is arranged with a male button to be coupled to the female button on the back side of the wearing body 1.

Further, when the chest protector 10 is attached, the front member 14 penetrates from the first surface 14A to the first back surface 14B in order to ensure ventilation between the inner space and the outer space of the chest protector 10. The front side through hole 19S is provided. Further, the back member 15 is provided with a back side through hole 19B that penetrates from the second front surface 15A to the second back surface 15B. The front through hole 19S and the back through hole 19B are provided at positions where the front member 14 and the back member 15 overlap each other when they are overlapped with each other, and function as a ventilation hole.

While the front member 14 and the back member 15 have a curved shape that follows the shape of the wearer's chest, the front side through hole 19S and the back side through hole 19B have a peripheral wall constituting the side surface in the front member 14 and the back member 15. By being provided at a plurality of locations, the strength of the front member 14 and the back member 15 is also increased. The front side coupling hole 16S and the back side coupling hole 16B, and the front side insertion hole 18S and the back side insertion hole 18B are similarly molded and have a function of increasing the strength.

The left side covering 11L has a left side insertion recess 13L, a left side insertion part 12L, a left side insertion part 13L, and a left side insertion part 12L in order from the top at the right end portion extending in the vertical direction at the center of the wearer's chest. They are arranged in order. Further, the right side covering 11R is located at the center of the wearer's chest and at the left end extending in the vertical direction, in order from the top, the right side insertion part 12R, the right side insertion part 13R, the right side insertion part 12R, and the right side insertion part. They are arranged in the order of 13R.
Hereinafter, the left side insertion portion 12L and the right side insertion portion 12R are collectively referred to as an insertion portion 12, and the left side insertion recess 13L and the right side insertion recess 13R are collectively referred to as an insertion recess 13.

As shown in FIG. 5, the insertion portion 12 of the covering body 11 has a front side first protruding piece 21S protruding from the front member 14 in the direction of the mating covering body 11, and a direction of the mating covering body 11 from the back member 15. It is provided with a first protruding piece 21B on the back side that protrudes toward the surface. The first surface 14A of the front side first protruding piece 21S is formed so as to be one step lower than the surrounding region by providing a concave recess in the first surface 14A. The first back surface 14B of the front side first protruding piece 21S is flush with the surrounding area. Further, the second back surface 15B of the back side first protruding piece 21B is formed so as to be one step lower than the surrounding region by providing a concave portion in the second back surface 15B. The second surface 15A of the back side first protruding piece 21B is flush with the surrounding region. The front side first protruding piece 21S and the back side first protruding piece 21B are paired pieces facing each other, and the substantially flat first back surface 14B and the second surface 15A are abutted against each other to insert the insertion portion 12. Constitute. The first surface 14A of the front side first projecting piece 21S and the second back surface 15B of the back side first projecting piece 21B have a first spacing 22 (corresponding to the thickness of the insertion portion 12).

The insertion recess 13 of the covering body 11 has a front side second protruding piece 23S protruding from the front member 14 in the direction of the mating covering body 11 and a back side second protruding piece 23S protruding from the back member 15 in the direction of the mating covering body 11. It is equipped with a piece 23B. The first surface 14A of the front side second protruding piece 23S is flush with the surrounding area, and the first back surface 14B is one step lower than the surrounding area by providing the first back surface 14B with a concave recess. It is formed like this. Further, the second back surface 15B of the back side second protruding piece 23B is flush with the surrounding area, and the second surface 15A is one step from the surrounding area by providing the second surface 15A with a concave recess. It is formed to be low. The front side second protruding piece 23S and the back side second protruding piece 23B are paired pieces facing each other, and the first back surface 14B and the second surface 15A having a concave recess are opposed to each other. An insertion recess 13 is formed between the back surface 14B and the second surface 15A. A second space 24 is provided between the first surface 14A of the front side second protruding piece 23S and the second back surface 15B of the back side second protruding piece 23B, and the second space 24 is a portion of the insertion recess 13. It becomes the thickness. The chest protector 10 is set so that the second interval 24 is larger than the first interval 22, so that the insertion portion 12 can be inserted within the thickness of the laminated body in which the front member 14 and the back member 15 are overlapped. A structure that allows insertion into the insertion recess 13 is realized.

The first surface 14A of the front side first protruding piece 21S constituting the insertion portion 12 is provided with a recess 25 as an engaged portion. The recess 25 is arranged at the base end portion of the first surface 14A as an example. Further, the first back surface 14B of the front side second protruding piece 23S constituting the insertion recess 13 is provided with a protrusion 26 as an engaging portion that engages with the recess 25. The protrusion 26 is arranged at the tip of the first back surface 14B as an example. Each of the first surface 14A of the front side first projecting piece 21S and the first back surface 14B of the front side second projecting piece 23S are facing surfaces facing each other. The recess 25 and the protrusion 26 are a recess and a protrusion extending in a direction intersecting the insertion / removal direction of the insertion portion 12 with respect to the insertion recess 13, for example, in a direction orthogonal to each other. In a state where the insertion portion 12 is inserted into the insertion recess 13, the protrusion 26 engages with the recess 25 to make it difficult for the insertion portion 12 to come out of the insertion recess 13.
As an example, the recess 25 and the protrusion 26 are provided in the second to fourth insertion portions 12 and the insertion recess 13 from the top.

The first surface 14A of the front side first protruding piece 21S constituting the insertion portion 12 is provided with a tapered portion 27A having the first back surface 14B side as the top portion at the tip end portion. The tapered portion 27A has a tapered end portion of the insertion portion 12 to facilitate insertion into the insertion recess 13. The second surface 15A of the back side second protruding piece 23B constituting the insertion recess 13 also has a tapered portion 27B at the tip end portion with the second back surface 15B side as the top. The tapered portion 27B widens the open end of the insertion recess 13 to facilitate the insertion of the insertion portion 12.

Further, the first surface 14A of the front side first protruding piece 21S constituting the insertion portion 12 is provided with a guide protrusion 28A as a guided portion at the central portion in the vertical direction when the chest protector 10 is attached. The guide protrusion 28A is configured by forming recesses on the upper and lower sides of the guide protrusion 28A, that is, on both sides. Further, the base end portion of the guide protrusion 28A extends in the vertical direction. The recess 25 described above is provided in the guide protrusion 28A. On the other hand, the first back surface 14B of the front side second protruding piece 23S constituting the insertion recess 13 is provided with a guide groove 28B as a guide portion at the central portion in the vertical direction when the chest protector 10 is attached. The guide groove 28B is configured by forming protrusions on the upper and lower sides of the guide groove 28B, that is, on both sides. By engaging the guide protrusion 28A with the guide groove 28B, the insertion portion 12 can be easily inserted into the insertion recess 13. Further, the front side first protruding piece 21S can be provided with a guide protrusion 28A to reduce a thin portion and increase the strength. In addition, the strength can be increased by providing an uneven structure such as the guide protrusion 28A.
A guide groove 28B is also provided on the second back surface 15B of the back side first projecting piece 21B constituting the insertion portion 12, and the second surface 15A of the back side second projecting piece 23B constituting the insertion recess 13 is also provided. , The guide protrusion 28A is provided. As a result, the thin portion is reduced to increase the strength, and further, the strength of the back side first protruding piece 21B can be increased by providing the uneven structure.

The front member 14 and the back member 15 configured as described above specifically have the following hollow structure. As shown in FIG. 6, the front member 14 and the back member 15 are formed by joining the laminated sheets 33 and 34 to the upper and lower surfaces of the core layer 32 in which a plurality of cells S are arranged side by side by heat welding. As shown in FIGS. 6 (b) and 6 (c), the core layer 32 is a sheet material made of a thermoplastic resin and is formed by folding a single sheet material formed into a predetermined shape. The core layer 32 is composed of an upper wall 32a, a lower wall 32b, and an intermediate wall 32c which is erected between the upper wall 32a and the lower wall 32b and has hexagonal columnar cylinders arranged side by side. Further, the upper wall 32a, the lower wall 32b, and the intermediate wall 32c form a hexagonal columnar cell S inside the core layer 32.

In the cell S partitioned inside the core layer 32, the first cell S1 and the second cell S2 having different configurations are present. As shown in FIG. 6B, the upper end of the first cell S1 is closed by the upper wall 32a having a two-layer structure, and the lower end thereof is closed by the lower wall 32b having a single-layer structure. The layers of the upper wall 32a of this two-layer structure are joined to each other. On the other hand, as shown in FIG. 6C, the upper end of the second cell S2 is closed by the upper wall 32a of the one-layer structure, and the lower end thereof is closed by the lower wall 32b of the two-layer structure. The layers of the lower wall 32b of this two-layer structure are joined to each other. Further, as shown in FIGS. 6 (b) and 6 (c), the space between the adjacent first cells S1 and the space between the adjacent second cells S2 are each partitioned by an intermediate wall 32c having a two-layer structure. There is.

As shown in FIG. 6A, the first cell S1 and the second cell S2 are arranged so that the first cell S1 and the second cell S2 are adjacent to each other in the X direction to form a row. Further, in the Y direction orthogonal to the X direction, the columns of the first cell S1 and the columns of the second cell S2 are alternately arranged adjacent to each other. The core layer 32 has a honeycomb structure due to the first cell S1 and the second cell S2.

As shown in FIG. 7A, the sheet material 100 constituting the core layer 32 is formed by molding a single thermoplastic resin sheet into a predetermined shape. In the sheet material 100, a strip-shaped plane region 110 and a bulging region 120 are alternately arranged in the width direction (X direction). In the bulging region 120, a first bulging portion 121 having a cross-sectional downward groove shape composed of an upper surface and a pair of side surfaces is formed over the entire extending direction (Y direction) of the bulging region 120. The angle between the upper surface and the side surface of the first bulging portion 121 is preferably 90 degrees, and as a result, the cross-sectional shape of the first bulging portion 121 becomes a downward U-shape. Further, the width of the first bulging portion 121 (the length in the lateral direction of the upper surface) is equal to the width of the plane region 110, and the bulging height of the first bulging portion 121 (the length in the lateral direction of the side surface). ) Is set to be twice as long.

As shown in FIG. 7A, in the bulging region 120, a plurality of second bulging portions 122 having a trapezoidal shape obtained by dividing a regular hexagon into two with the longest diagonal line are first bulged. It is formed so as to be orthogonal to the protrusion 121. The bulging height of the second bulging portion 122 is set to be equal to the bulging height of the first bulging portion 121. Further, the distance between the adjacent second bulging portions 122 is equal to the width of the upper surface of the second bulging portion 122. The first bulging portion 121 and the second bulging portion 122 are formed by partially bulging the sheet upward by utilizing the plasticity of the sheet. Further, the sheet material 100 can be molded from one sheet by a well-known molding method such as a vacuum forming method or a compression molding method.

As shown in FIGS. 7A and 7B, the core layer 32 is formed by folding the sheet material 100 configured as described above along the boundary lines P and Q. Specifically, the sheet material 100 is valley-folded at the boundary line P between the flat surface region 110 and the bulging region 120, and mountain-folded at the boundary line Q between the upper surface and the side surface of the first bulging portion 121. And compress in the X direction. Then, as shown in FIGS. 7 (b) and 7 (c), the upper surface and the side surface of the first bulging portion 121 are folded, and the end surface of the second bulging portion 122 and the plane region 110 are folded. A prismatic section 130 extending in one Y direction is formed for each bulging region 120. A plate-shaped core layer 32 is formed by continuously forming such a partition 130 in the X direction.

At this time, the upper wall 32a of the core layer 32 is formed by the upper surface and the side surface of the first bulging portion 121, and the lower wall 32b of the core layer 32 is formed by the end surface of the second bulging portion 122 and the plane region 110. It is formed. As shown in FIG. 7 (c), the portion of the upper wall 32a where the upper surface and the side surface of the first bulging portion 121 are folded to form a two-layer structure, and the portion of the lower wall 32b where the second bulging portion 122 is formed. The portions where the end face and the plane region 110 are folded to form a two-layer structure are the overlapping portions 131, respectively.

As shown in FIGS. 6 (b) and 6 (c), the hexagonal columnar region formed between the pair of adjacent compartments 130 becomes the second cell S2, and the region is partitioned between the pair of adjacent compartments 130. The hexagonal columnar region formed becomes the first cell S1. In the present embodiment, the upper surface and the side surface of the second bulging portion 122 form the side wall of the second cell S2, and between the side surface of the second bulging portion 122 and the second bulging portion 122 in the bulging region 120. The positioned flat surface portion constitutes the side wall of the first cell S1. Then, the contact portion between the upper surfaces of the second bulge portion 122 and the contact portion between the plane portions in the bulge region 120 form an intermediate wall 32c having a two-layer structure. Further, in the first cell S1, the upper end thereof is closed by a pair of overlapping portions 131, and in the second cell S2, the lower end thereof is closed by a pair of overlapping portions 131.

A laminated sheet 33 and a laminated sheet 34 are joined to the upper surface and the lower surface of the core layer 32 that has been folded and molded as described above by heat welding, respectively.
As shown in FIG. 6B, the upper surface laminated sheet 33 is bonded to the thermoplastic resin skin layer 33a arranged on the outer surface side (upper side in FIG. 6B) and the skin layer 33a. It has a two-layer structure with the adhesive layer 33b, and the skin layer 33a is joined to the core layer 32 via the adhesive layer 33b. That is, in the front member 14 and the back member 15, the adhesive layer 33b is interposed between the core layer 32 and the skin layer 33a. The laminated sheet 33 is manufactured, for example, in a state where the skin layer 33a and the adhesive layer 33b are integrated by coextrusion molding, or the skin layer 33a and the adhesive layer 33b, which are independently manufactured respectively, are joined by heat welding. It can be obtained by.

As shown in FIG. 6 (b), the lower surface laminated sheet 34 is a thermoplastic resin skin layer 34a arranged on the outer surface side (lower side in FIG. 6 (b)) like the upper surface laminated sheet 3. And the adhesive layer 34b bonded to the skin layer 34a, and the skin layer 34a is bonded to the core layer 32 via the adhesive layer 34b. That is, in the front member 14 and the back member 15, the adhesive layer 34b is interposed between the core layer 32 and the skin layer 34a. The skin layer 34a and the adhesive layer 34b in the laminated sheet 34 are formed to have the same thickness as the skin layer 33a and the adhesive layer 33b in the laminated sheet 33, respectively.

As the core layer 32, the skin layer 33a, and the skin layer 34a, conventionally known thermoplastic resins can be used. For example, polycarbonate resin, polyethylene resin, polypropylene resin, polyvinyl chloride resin, polystyrene resin, polyvinyl chloride resin, polyurethane resin, acrylonitrile-butadiene-styrene resin, acrylic resin and the like can be mentioned. By using a thermoplastic resin of the same material for the core layer 32, the skin layer 33a, and the skin layer 34a, warpage and the like of the front member 14 and the back member 15 are less likely to occur.

Next, the chest protector 10 configured as described above has the following actions.
The chest protector 10 configured as described above is used as follows.
First, in the case of the specification in which the chest protector 10 is attached to the back side of the wearing body 1, the front member 14 and the back member 15 are connected by the coupling pin 17, and further coupled by the coupling belt 7. The chest protector 10 configured in this way is then connected to the female button on the back side of the wearing body 1 with the male button of the connecting belt 7. As a result, the chest protector 10 is integrated with the wearing body 1 and can be worn together with the wearing body 1.
Further, in the case of the specification in which the chest protector 10 is worn by the mounting belt 2, the front member 14 and the back member 15 are connected by the coupling pin 17, and the mounting portion 3 to which the mounting belt 2 is connected is connected to the front coupling hole 16S and the front coupling hole 16S. It is attached to the covering 11 by using the back side coupling hole 16B, the front side insertion hole 18S, and the back side insertion hole 18B. Then, with the left side covering 11L and the right side covering 11R separated to the left and right, the wearing belt 2 is hung on the wearer's shoulder and the chest protector 10 is placed in front of the wearer's chest. After that, the left side covering body 11L and the right side covering body 11R separated to the left and right are combined. After wearing the chest protector 10, the wearer wears the wearing body 1 on the upper side of the chest protector 10.

The left side covering body 11L and the right side covering body 11R are bonded as follows.
The left side insertion portion 12L of the left side covering body 11L is inserted into the right side insertion recess 13R of the right side covering body 11R, and the right side insertion part 12R of the right side covering body 11R is inserted into the left side insertion portion 13L of the left side covering body 11L. Is done. At this time, since the insertion portion 12 and the insertion recess 13 have the tapered portion 27A and the taper portion 27B, they can be easily inserted into the insertion recess 13. Then, the left side covering body 11L and the right side covering body 11R are moved to the left and right in a direction close to each other. At this time, by engaging the guide protrusion 28A with the guide groove 28B, the guide protrusion 28A can be easily moved in the left-right direction. Then, the protrusion 26 of the insertion portion 12 is engaged with the recess 25 of the insertion recess 13. As a result, the state in which the insertion portion 12 is inserted into the insertion recess 13 is maintained.

In order to pull out the insertion portion 12 from the insertion recess 13, the left side covering body 11L and the right side covering body 11R are moved in a direction to be separated from each other to the left and right. As shown in FIG. 8, at this time, from the state where the insertion portion 12 is inserted into the insertion recess 13, the portion where the insertion portion 12 is inserted into the insertion recess 13 protrudes from the back to the front in the direction of arrow D1. Apply bending force to. Then, the tip end portion of the first surface 14A of the front side first protruding piece 21S constituting the insertion portion 12 abuts against the base end portion of the first back surface 14B of the front side second protruding piece 23S constituting the insertion recess 13. As a fulcrum, the insertion portion 12 is displaced by the amount of rattling with respect to the insertion recess 13. The position serving as a fulcrum is the inner part of the insertion recess 13 with respect to the engagement position between the recess 25 and the protrusion 26 near the opening end of the insertion recess 13. As a result, the recess 25 and the protrusion 26 are located in the gap widening between the front side first protruding piece 21S and the front side second protruding piece 23S of the insertion portion 12, and the engaged state is released. .. The left side covering body 11L and the right side covering body 11R are moved in the direction of being separated from each other to the left and right while maintaining the state in which the recess 25 and the protrusion 26 are disengaged. As a result, the insertion portion 12 is pulled out from the insertion recess 13.

When a force in the direction of arrow D2 is applied from the outside while the chest protector 10 is worn, the result is as follows. The tip of the first back surface 14B of the front side second protruding piece 23S constituting the insertion recess 13 abuts on the base end portion of the first surface 14A of the front side first protruding piece 21S constituting the insertion portion 12. This is the same as the displacement in the direction in which the protrusion 26 is strongly engaged with the recess 25. This makes it difficult for the insertion portion 12 to come off from the insertion recess 13.

According to the chest protector 10 as described above, the effects listed below can be obtained.
(1) With the fastener of the wearing body 1 lowered, the left side covering body is applied with a bending force in the direction of the arrow D1 in which the insertion portion 12 protrudes from the back to the front with respect to the portion inserted into the insertion recess 13. The 11L and the right side covering 11R are moved in a direction to be separated from each other to the left and right. Thereby, the left side covering body 11L and the right side covering body 11R can be easily separated. Then, the wearer can cool down during a break or the like.

(2) When a force in the direction of arrow D2 is applied from the outside, the central portion of the first back surface 14B of the front side second projecting piece 23S constituting the insertion recess 13 constitutes the insertion portion 12. It is pushed by the central portion of the first surface 14A of the 21S, and the engaged state of the recess 25 and the protrusion 26 is maintained. This makes it difficult to separate the left side covering body 11L and the right side covering body 11R. Therefore, the wearer's chest can be protected by the chest protector 10.
(3) Since the covering body 11 is composed of the front member 14 and the back member 15, sufficient strength as a chest protector can be maintained.

(4) The front member 14 is provided with the front side first projecting piece 21S and the front side second projecting piece 23S, and the back member 15 is provided with the back side first projecting piece 21B and the back side second projecting piece 23B. The insertion recess 13 can be easily and easily configured.
(5) The effects of the above (1) and (2) can be realized by providing the recess 25 in the front side first protruding piece 21S and the protrusion 26 in the front side second protruding piece 23S.

(6) The effect of the above (1) and (2) is that the recess 25 of the insertion portion 12 is arranged at the base end portion of the first surface 14A, and the protrusion 26 of the insertion recess 13 is the tip end of the first back surface 14B. It can be realized by arranging it in the department.
(7) Since the front member 14 and the back member 15 are made of a hollow structure, the weight can be reduced, the rigidity can be excellent, and the impact resistance can be excellent.

In addition, the above-mentioned embodiment can be changed as appropriate and carried out as follows.
-Some of the front side through holes 19S and the back side through holes 19B can function as mounting holes for mounting the mounting portion 3. In this case, a pin for attaching the attachment portion 3 to the covering body 11 is inserted and the pin is crimped. The attachment portion 3 can also be attached to the covering body 11 by a coupling belt.
If the thickness of the insertion portion 12 and the thickness of the insertion recess 13 do not interfere with the attachment / detachment work of the left side covering 11L and the right side covering 11R and the protective function of the wearer's chest, the front member It may be thicker than the thickness of the laminated body in which the 14 and the back member 15 are stacked.
The position and number of the front side through holes 19S and the back side through holes 19B are not particularly limited. Further, the position of the front side through hole 19S of the front member 14 and the position of the back side through hole 19B of the back member 15 may be different from each other. Further, in order to simplify the configuration of the front member 14 and the back member 15, the front through hole 19S and the back through hole 19B may not be provided.
The hollow structure of the front member 14 and the back member 15 may have a lattice structure (triangular lattice structure, square lattice structure, etc.) other than the honeycomb structure. Further, the front member 14 and the back member do not have to be a hollow structure when sufficient strength can be obtained. Further, either the front member 14 or the back member does not have to be a hollow structure.
The front member 14 and the back member 15 may be blow-molded bodies. However, the above-mentioned hollow structure can realize weight reduction. In addition, the front member 14 and the back member 15 may be an injection molded body or a foam plate material press-molded.
-One or more plates of the hollow structure may be further interposed between the front member 14 and the back member 15.
-As an example, the hollow structure can be bent by press molding or vacuum forming to be curved into a shape that imitates the chest.

If the portion where the insertion portion 12 is inserted into the insertion recess 13 can separate the left side covering body 11L and the right side covering body 11R while applying a force in the direction of arrow D1, the structure is not particularly limited. No.
For example, a protrusion 26 is provided on the first surface 14A of the front side first protruding piece 21S constituting the insertion portion 12, and a recess 25 is provided on the first back surface 14B of the front side second protruding piece 23S constituting the insertion recess 13. You may do so.
Further, either the recess 25 or the protrusion 26 is provided on the second back surface 15B of the back side first projecting piece 21B constituting the insertion portion 12, and the second of the back side second projecting piece 23B constituting the insertion recess 13 is provided. The surface 15A may be provided with the other of the recess 25 and the protrusion 26. Each of the second back surface 15B of the back side first projecting piece 21B and the second surface 15A of the back side second projecting piece 23B are facing surfaces facing each other.
The recess 25 and the protrusion 26 may be provided in any of the insertion portions 12 and the insertion recess 13. As an example, the recess 25 and the protrusion 26 may be provided for all the insertion portions 12 and the insertion recess 13, or as an example, for one insertion portion 12 and the insertion recess 13. The recess 25 and the protrusion 26 may be provided. Further, the recess 25 and the protrusion 26 may be provided in the second and third insertion portions 12 and the insertion recess 13.
Further, a protrusion or a recess may be provided at other positions.

The structure for maintaining the insertion portion 12 in the insertion recess 13 is not limited to the above example. As an example, either one of the elastic engaging piece and the engaging hole may be provided in the insertion portion 12, and the other of the elastic engaging piece and the engaging hole may be provided in the insertion recess. In this case, by elastically displacing the elastic engaging piece, the engaging protrusion provided at the tip of the elastic engaging piece can be engaged and disengaged from the engaging hole. Then, the left side covering body 11L and the right side covering body 11R can be separated by elastically displacing the elastic engaging piece and removing the engaging protrusion from the engaging hole. As an example, the insertion portion 12 may be composed of a male buckle, and the insertion recess 13 may be composed of a female buckle so that it can be moved in the left-right direction or the up-down direction so that it can be attached and detached.
The direction in which the insertion portion 12 is inserted into the insertion recess 13 may be not the left-right direction but the up-down direction.
The insertion portion 12 may be provided only on one of the left side covering body 11L and the right side covering body 11R, and the insertion recess 13 may be provided only on the other side.
-The number of the insertion portions 12 and the insertion recesses 13 may be one or a plurality. Further, the shapes and widths of the insertion portion 12 and the insertion recess 13 may be different from each other.

In the covering body 11, in order to increase the strength of the laminated body of the front member 14 and the back member 15, a plate material or a sheet material of a hollow structure may be further inserted. Further, a cushion material may be inserted between the front member 14 and the back member 15 for shock absorption.
The insertion portion 12 and the insertion recess 13 may be one by one.

1 ... Wearing body, 2 ... Wearing belt, 3 ... Mounting part, 3L ... Left side mounting part, 3R ... Right side mounting part, 4L ... Left side shoulder strap part, 4R ... Right side shoulder strap part, 5 ... Circular belt part, 6 ... Back part Belt part, 7 ... Bonding belt, 10 ... Chest protector, 11 ... Cover, 11L ... Left side cover, 11R ... Right side cover, 12 ... Insert, 12L ... Left side insert, 12R ... Right side insert, 13 ... Insertion recess, 13L ... Left side insertion recess, 13R ... Right side insertion recess, 14 ... Front member, 14A ... First surface, 14B ... First back surface, 14L ... Left side front member, 14R ... Right side front member, 15 ... back member, 15A ... second front surface, 15B ... second back surface, 15L ... left back member, 15R ... right back member, 16B ... back side coupling hole, 16S ... front side coupling hole, 17 ... coupling pin, 18B ... back side insertion hole , 18S ... front side insertion hole, 19B ... back side through hole, 19S ... front side through hole, 21B ... back side first protruding piece, 21S ... front side first protruding piece, 22 ... first interval, 23B ... back side second protruding piece, 23S ... front side second protruding piece, 24 ... second interval, 25 ... concave, 26 ... protrusion, 27A ... taper part, 27B ... taper part, 28A ... guide protrusion, 28B ... guide groove, 32 ... core layer, 32a ... Upper wall, 32b ... Lower wall, 32c ... Intermediate wall, 33 ... Laminated sheet, 33a ... Skin layer, 33b ... Adhesive layer, 34 ... Laminated sheet, 34a ... Skin layer, 34b ... Adhesive layer, 100 ... Sheet material, 110 ... Plane region, 120 ... bulging region, 121 ... first bulging portion, 122 ... second bulging portion, 130 ... compartment, 131 ... overlapping portion.

Claims (4)

A cover that covers the left part of the wearer's chest and has a right end, and a left cover.
A covering covering the right side of the wearer's chest with a right covering having a left end.
Each of the covering bodies is a laminated body in which two sheets of a front member as a plate body and a back member as a plate body are stacked.
Each of the coverings is
Insertion recesses arranged at the ends of each of the coverings, and
It is provided with an insertion portion arranged at the end of each of the coverings and inserted into the insertion recess of the other covering .
The insertion portion is composed of a first projecting piece projecting from each of the front member and the back member toward the other covering body at the end portion of each covering body.
The insertion recess is formed at the end of each of the coverings between the second protruding pieces protruding from each of the front member and the back member toward the other covering.
The insertion portion and the insertion recess are arranged so as to alternate in the vertical direction at the end portion of each of the covering bodies.
When the insertion portion is inserted into the insertion recess and a bending force is applied to the insertion portion so as to protrude from the back to the front of the insertion portion. A chest protector that allows the insertion part to come out of the insertion recess. The chest protector according to claim 1, wherein the front member and the back member have a hollow structure in which laminated sheets are joined to both upper and lower surfaces of a core layer in which a plurality of cells are arranged side by side. The insertion recess is provided with an engaging portion on a surface facing the insertion portion in a state where the insertion portion is inserted.
In the state of being inserted into the insertion recess, the insertion portion has an engaged portion in which the engagement portion engages with a surface facing the surface of the insertion recess provided with the engagement portion. Prepare,
When the insertion portion is inserted into the insertion recess and a bending force is applied to the insertion portion so as to protrude from the back to the front with respect to the portion inserted into the insertion recess. The chest protector according to claim 1 or 2, wherein the engaged portion and the engaged portion are located at a portion where the gap between the insertion portion and the insertion recess widens, and the engagement is released. The engaging portion is arranged on the back surface of the first protruding piece included in the front member of the insertion recess.
The chest protector according to claim 3, wherein the engaged portion is arranged on the surface of the second protruding piece included in the front member of the insertion portion.

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