protective equipment

Abstract

To provide protective equipment that can protect the legs of construction workers from the rotating blades of rotary tools. [Solution] This protective device 1 comprises a non-metallic shock-absorbing member 30 for covering the front of the shin, and an aluminum protective member 10 attached to the shock-absorbing member 30 to protect the shin, wherein the protective member 10 is curved to conform to the front of the shin and has a peripheral frame portion 11 and protrusions 12a to 12c protruding from the frame portion 11.

Description

Technical Field

[0001] The present disclosure relates to protective gear.

Background Art

[0002] Construction workers may use handy-type rotary tools (e.g., grinders, engine cutters, etc.) that are handled by hand at a construction site. When using a rotary tool, there is a risk that the blade of the rotary tool may come into contact with the legs (especially the shins and knees) of the construction worker.

[0003] As protective gear for physically protecting the legs, generally, there are protective gears made of hard plastic. For example, Patent Document 1 discloses hard plastic leg guards (protective gears) for baseball that protect the knees, shins, ankles, and toenails respectively.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the protective gear made of hard plastic does not have sufficient strength to protect the legs of the construction worker from the rotating blade of the rotary tool, and there is a risk that it may not be able to fully protect the legs of the construction worker.

[0006] Therefore, an object of the present disclosure is to provide a protective gear that can protect the legs of a construction worker from the rotating blade of a rotary tool.

Means for Solving the Problems

[0007] To achieve the above-mentioned objectives, the protective device according to this disclosure comprises a non-metallic shock-absorbing member for covering the front of the shin, and an aluminum protective member attached to the shock-absorbing member for protecting the shin, wherein the protective member is curved to conform to the front of the shin and has a peripheral frame portion and a protruding portion that extends from the frame portion. [Effects of the Invention]

[0008] The protective device described herein can protect the legs of construction workers from the rotating blades of rotary tools. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing a first embodiment of the protective equipment relating to this disclosure. [Figure 2] This is a perspective view showing the back surfaces of the first protective member and the second protective member. [Figure 3] This is a perspective view showing the back of the protective equipment. [Figure 4] This is a partial front view partially showing a second embodiment of the protective device relating to this disclosure. [Modes for carrying out the invention]

[0010] A first embodiment of the protective equipment according to this disclosure will be described in detail with reference to Figures 1 to 3. As shown in Figures 1 to 3, the protective equipment 1 according to this embodiment is used, for example, at a construction site to physically protect the shins and knees of a construction worker using a handheld rotary tool (such as a grinder or engine cutter) from the rotating blade that rotates at high speed in the tool. As shown in Figures 1 to 3, the protective equipment 1 comprises a first protective member 10, a second protective member 20, an impact-absorbing member 30, and a group of fixing members 40. In this description of the embodiment, the wearer refers to a person (for example, a construction worker) wearing the protective equipment 1. Also, the direction in this description of the embodiment is based on the state in which the wearer is wearing the protective equipment 1.

[0011] The first protective member 10 is an aluminum protective member for protecting the wearer's shin. The first protective member 10 is shaped to match the shape of a person's shin and is formed to cover at least the front part of the shin. The first protective member 10 is press-formed from a single aluminum plate. The thickness of the first protective member 10 is 1.0 to 2.0 mm, preferably 1.5 mm. The first protective member 10 is substantially rectangular in front view and curved in an arc shape overall in cross-section. The first protective member 10 is also configured to be detachable from the shock-absorbing member 30. Figures 1 and 3 show the state in which the first protective member 10 is attached to the shock-absorbing member 30.

[0012] More specifically, the first protective member 10 comprises a first frame portion 11 including the peripheral edge portion of the first protective member 10, a first group of protrusions 12 that protrude from the first frame portion 11 toward the front on the inside in the width direction and the inside in the longitudinal direction, a plurality of first A snap buttons 13 (six in Figure 2), and a plurality of first B snap buttons 14 (four in Figure 2). In the first group of protrusions 12, three protrusions are independently formed from the lower part (ankle side) to the upper part (knee side) in the longitudinal direction of the first protective member 10: a lower protrusion 12a, a middle protrusion 12b, and an upper protrusion 12c. Hereinafter, these three protrusions may be collectively referred to as protrusions 12a to 12c.

[0013] The first frame portion 11 occupies the area surrounding each of the protrusions 12a to 12c, the space between the lower protrusion 12a and the middle protrusion 12b, and the space between the middle protrusion 12b and the upper protrusion 12c. The curvature of the cross-section of the first frame portion 11 is greater at the upper end surface u1 on one longitudinal side (knee side) of the first frame portion 11 than at the lower end surface d1 on the other longitudinal side (foot side).

[0014] In each of the protrusions 12a to 12c that constitute the first group of protrusions 12, the curvature of the cross-section of each protrusion 12a to 12c corresponds to the curvature of the cross-section of the first frame 11. Each of the protrusions 12a to 12c is curved with approximately the same curvature.

[0015] The amount of protrusion of each protrusion 12a to 12c relative to the first frame portion 11 is sufficient to allow each protrusion 12a to 12c to be at least slightly separated from the impact-absorbing member 30, for example, about 5 mm. In addition, the outer edges of each protrusion 12a to 12c are formed in a rounded shape from the front surface of each protrusion 12a to 12c to the front surface of the first frame portion 11.

[0016] The widthwise length of each protrusion 12a to 12c is shortest in the order of lower protrusion 12a, middle protrusion 12b, and upper protrusion 12c. Regarding the length in the vertical direction (the longitudinal direction of the first protective member 10 and the first frame portion 11) of each protrusion 12a to 12c, it is desirable that the middle protrusion 12b be the longest. Regarding the front surface area of ​​each protrusion 12a to 12c, the middle protrusion 12b is the widest, and the lower protrusion 12a is slightly wider than the upper protrusion 12c.

[0017] The second protective member 20 is an aluminum protective member for protecting the wearer's knee. The second protective member 20 is shaped to match the shape of a person's knee and is formed to cover at least the front of the knee. The second protective member 20 is press-formed from a single aluminum plate. The thickness of the second protective member 20 is 1.0 to 2.0 mm, preferably 1.5 mm. In a front view, the second protective member 20 is approximately circular and is formed in an approximately spherical shape overall.

[0018] More specifically, the second protective member 20 comprises a second frame portion 21 forming a substantially annular frame, a second projection portion 22 that protrudes more forward than the second frame portion 21 on the inside in the width direction of the second frame portion 21, a plurality of second A snap buttons 23 (four in Figure 2), and a plurality of second B snap buttons 24 (two in Figure 2). The second protective member 20 is separate from the first protective member 10 and is configured to be detachably attached to the shock-absorbing member 30 separately from the first protective member 10. Figures 1 and 3 show the second protective member 20 attached to the shock-absorbing member 30.

[0019] The protruding amount of the second protruding portion 22 with respect to the second frame portion 21 may be such that the second protruding portion 22 can be spaced apart from the shock absorbing member 30 even slightly, for example, about 5 mm. Further, the outer edge portion of the second protruding portion 22 is formed with a roundness from the front surface side of the second protruding portion 22 to the front surface side of the second frame portion 21.

[0020] The shock absorbing member 30 is a non-metallic member composed of a material having shock absorbency (for example, a cloth material, a cushion material such as polyester or nylon), and is for contacting the front portion from the shin to the knee of the wearer and covering the front portion. The shock absorbing member 30 has flexibility that can stretch and twist so as to follow the movement of the wearer's leg. A plurality of third snap buttons (not shown) are attached to the peripheral edge portion of the shock absorbing member 30.

[0021] The first protective member 10 is attached to the shock absorbing member 30 along the longitudinal direction of the shock absorbing member 30 by the first A snap button 13 and the third snap button, and the second protective member 20 is attached by the second A snap button 23 and the third snap button. The first A snap button 13 and the third snap button can be attached to and detached from each other. Similarly, the second A snap button 23 and the third snap button can be attached to and detached from each other.

[0022] Thereby, in the protective gear 1 shown in FIGS. 1 and 3, the front surface о3 of the shock absorbing member 30 contacts the back surface r1 of the first frame portion 11 in the first protective member 10 and also contacts the back surface r2 of the second frame portion 21 in the second protective member 20.

[0023] As shown in FIG. 3, the fixing member group 40 is composed of three members: a lower fixing member 41, a middle fixing member 42, and an upper fixing member 43 from the lower part to the upper part in the longitudinal direction of the protective gear 1. The lower fixing member 41 is provided so as to wind around the wearer's leg at the lower part of the shin, the middle fixing member 42 is provided at the upper part of the shin, and the upper fixing member 43 is provided at the knee. Hereinafter, these three fixing members may also be collectively referred to as each fixing member 41 to 43.

[0024] Each of the fixing members 41 to 43 has a belt portion 41a, 42a, and 43a, a pair of buckles 41b, 42b, and 43b, and a pair of fixing pieces 41c, 42c, and 43c, respectively. Since each of the fixing members 41 to 43 has the same configuration, the lower fixing member 41 will be described below, and the descriptions of the middle fixing member 42 and the upper fixing member 43 will be omitted.

[0025] The belt portion 41a is, for example, a rubber belt and is elastic. A pair of buckles 41b are provided as female members at one end and near the center of the belt portion 41a, respectively. A fixing piece 41c is provided as a male member at the other end of the belt portion 41a. In the lower fixing member 41, the pair of buckles 41b, which are female members, and the fixing piece 41c, which is a male member, can be attached and detached with a single touch. The fixing piece 41c is provided with a fourth snap button (not shown). The fourth snap button on the fixing piece 41c corresponds to the first B snap button 14 of the first protective member 10 and the second B snap button 24 of the second protective member 20, and is configured to be able to be attached to and detached from each other.

[0026] In the protective device 1 configured in this way, when in use, the first protective member 10 and the second protective member 20, to which the respective fixing members 41 to 43 are attached, are attached to the shock-absorbing member 30. When the protective device 1 is not in use, the first protective member 10, the second protective member 20, the shock-absorbing member 30, and the respective fixing members 41 to 43 are removed and transported and stored.

[0027] Furthermore, when the protective device 1 is put on, the pair of buckles 41b to 43b and fixing pieces 41c to 43c are detached from each fixing member 41 to 43, and the back surface i3 of the impact-absorbing member 30 is brought into contact with the front of the wearer's shin to knee. Then, the belt portions 41a, 42a, and 43a of each fixing member 41 to 43 are wrapped around the wearer's leg, and the buckles 41b to 43b and fixing pieces 41c to 43c are engaged.

[0028] When a construction worker puts on protective equipment 1 in this manner, the first protective member 10 is positioned on the front of the wearer's (construction worker's) shin, and the second protective member 20 is positioned on the front of the wearer's knee.

[0029] According to protective device 1, since the first protective member 10 is made of aluminum, it can provide greater strength against rotating blades compared to protective members made of hard plastic, and can more reliably protect the wearer's shins.

[0030] Furthermore, according to the protective device 1, the first protective member 10 is curved to conform to the front of the shin and has a first group of protruding parts 12 that protrude from the first frame 11, thereby increasing the overall rigidity of the first protective member 10 and suppressing deformation due to aging and contact with the rotating blade.

[0031] Furthermore, with the protective device 1, since the first protective member 10 has multiple protrusions 12a to 12c as the first group of protrusions 12, the overall strength of the first protective member 10 can be further increased, and distortion due to aging deterioration and contact with the rotating blade can be suppressed even more reliably.

[0032] Furthermore, according to protective device 1, the impact-absorbing member 30 is designed to cover the wearer's shin and the front of their knee, and since the second protective member 20 made of aluminum is further attached to the impact-absorbing member 30, the wearer's knee can be physically protected from the rotating blade in conjunction with the shin.

[0033] Furthermore, with the protective device 1, since the second protective member 20 is separate from the first protective member 10, even if one of the first protective member 10 or the second protective member 20 is damaged or deteriorated, only that one can be replaced, thereby reducing the maintenance cost of the protective device 1.

[0034] Furthermore, according to the protective device 1, the second protective member 20 is equipped with a second protrusion 22, and since the second protrusion 22 protrudes from the second frame 21, the overall strength of the second protective member 20 can be increased, and distortion due to aging deterioration and contact with the rotating blade can be suppressed in the second protective member 20.

[0035] Furthermore, with the protective device 1, since the first protective member 10 and the second protective member 20 are detachable from the impact-absorbing member 30, the protective device 1 can be easily transported and stored, and individual parts (10, 20, 30) can be selected and replaced, thereby reducing the maintenance costs of the protective device 1.

[0036] Furthermore, according to protective device 1, the curvature of the curved surface of the first protective member 10 is greater on one side in the longitudinal direction of the first protective member 10 than on the other side, and since this side is the side that is closer to the second protective member 20, the first protective member 10 can be adapted to the shape of a typical leg (shin).

[0037] Furthermore, with protective equipment 1, since the first protective member 10 and the second protective member 20 are each attached to the same shock-absorbing member 30, the number of parts of protective equipment 1 can be reduced compared to the case where the first protective member 10 and the second protective member 20 are each attached to different shock-absorbing members, making it easier to transport protective equipment 1, and also reducing the load on the wearer's movements (for example, bending and straightening the knees).

[0038] This concludes the description of this embodiment, but this disclosure is not limited to this embodiment.

[0039] In this embodiment, the first protective member 10, its first frame portion 11, and the first group of protrusions 12 are formed in an arc shape, but in this disclosure, they only need to be curved along the shin, and for example, they may have a U-shaped or C-shaped cross-section so as to cover the front and side of the shin. Also, in this embodiment, the first protective member 10 has three protrusions 12a to 12c, but in this disclosure, it may have only one, only two, or four or more protrusions.

[0040] The second protective member 20, its second frame portion 21, and its second protruding portion 22 may be formed in a shape other than the shape in this embodiment (for example, a U-shape) in this disclosure.

[0041] Furthermore, in this embodiment, the shock-absorbing member 30 integrally covers the shin portion and the knee portion, and the first protective member 10 and the second protective member 20 are attached to it, respectively. However, in this disclosure, the device comprises a first shock-absorbing member that covers the shin portion and a second shock-absorbing member that is separate from the first shock-absorbing member and covers the knee portion, and the first protective member 10 may be attached to the first shock-absorbing member, and the second protective member 20 may be attached to the second shock-absorbing member.

[0042] Next, a second embodiment of the protective device according to this disclosure will be described in detail with reference to Figure 4. Note that only the configurations that differ from the first embodiment will be described for the second embodiment, and the configurations common to both embodiments will be omitted. The protective device 100 according to this embodiment includes a first protective member 110 and an impact-absorbing member 130, as shown in Figure 4, in place of the first protective member 10 and impact-absorbing member 30 of the protective device 1 according to the first embodiment. Figure 4 shows a partial front view of the first protective member 110 and impact-absorbing member 130, which are the differences between the protective device 100 according to this embodiment and the protective device 1 according to the first embodiment. Also, in Figure 4, the first protective member 110 is shown detached from the impact-absorbing member 130.

[0043] In this description of the embodiment, "wearer" refers to a person (for example, a construction worker) who is wearing the protective equipment 100. Also, the directions in this description of the embodiment are based on the state in which the wearer is wearing the protective equipment 100.

[0044] As shown in Figure 4, the first protective member 110 is equipped with a first frame portion 111 in place of the first frame portion 11 of the first protective member 10. The lower end surface d2 (lower edge in a front view) located at the lower longitudinal end (the end on the instep side of the wearer's foot) of the first frame portion 111 is recessed toward the upper longitudinal direction (towards the wearer's knee) on the widthwise center side of the first frame portion 111, thereby forming a clearance C on the lower longitudinal end side of the first frame portion 111, and is configured to reduce contact between the protective device 100 and the instep of the wearer's foot.

[0045] In particular, the lower end surface d2 is curved along the width direction of the first frame portion 111 to match the shape of the instep, so that it does not recess more than necessary (i.e., it does not reduce the front surface area of ​​the first frame portion 111 of the first protective member 110 more than necessary), thus reducing contact between the protective device 100 and the wearer's instep.

[0046] Furthermore, as shown in Figure 4, the shock-absorbing member 130 includes, in addition to the shock-absorbing base 131 corresponding to the shock-absorbing member 30, an shock-absorbing extension 132 that extends longitudinally downward from the longitudinal lower end side (the side facing the wearer's instep) of the shock-absorbing base 131. In other words, the shock-absorbing extension 132 extends longitudinally downward from the first frame portion 111 beyond the lower end surface d2 of the first frame portion 111 of the first protective member 110. As a result, the shock-absorbing member 130 is configured to allow the shock-absorbing extension 132 to function as a "member that protects the instep of the wearer's foot of the protective device 100". Here, "protecting the instep" means, for example, more reliably reducing contact between the lower end surface d2 of the first frame portion 111 of the first protective member 110 and the wearer's instep.

[0047] Finally, the configuration of the protective equipment relating to this disclosure is illustrated below. [1] A non-metallic shock-absorbing member to cover the front of the shin, The system includes an aluminum protective member attached to the shock-absorbing member to protect the shin, The protective member is curved to follow the front of the shin and is characterized by having a frame portion at the periphery and a protruding portion that extends from the frame portion. Protective equipment. [2] The protective member is characterized by having a plurality of the protruding portions. The protective equipment described in [1] above. [3] The first protective member is a separate component from the aforementioned protective member, and further comprises a second aluminum protective member that is attached to the impact-absorbing member to protect the knee. The aforementioned shock-absorbing member is for covering the shin and the front part of the knee, The first protective member and the second protective member are attached to the impact-absorbing member along the longitudinal direction of the impact-absorbing member, The protective equipment described in [1] or [2] above. [4] The second protective member is curved to conform to the front of the knee and is characterized by having a frame portion at its peripheral edge and a protruding portion that extends from the frame portion. The protective equipment described in [3] above. [5] The protective member is characterized by being detachable from the shock-absorbing member. The protective equipment described in any one of the above [1] to [4]. [6] The second protective member is characterized by being detachable from the impact-absorbing member. The protective equipment described in [3] or [4] above. [7] The curvature of the protective member is characterized in that one side in the longitudinal direction of the protective member is greater than the other side. The protective equipment described in any one of the above [1] to [6]. [8] The lower end surface of the protective member is recessed toward the longitudinal direction upward of the protective member on the widthwise center side of the protective member. The protective equipment described in any one of the above [1] to [6]. [9] The impact-absorbing member includes an impact-absorbing extension that extends below the lower end surface of the protective member in the longitudinal direction of the protective member. The protective equipment described in any one of the above [1] to [6]. [Explanation of symbols]

[0048] 1,100 protective equipment 10, 110 First protective member 11, 111 Section 1 12 First protrusion group 12a Lower protrusion 12b Middle protrusion 12c Upper protrusion 13 1A Snap Button 14. 1B snap button 20 Second protective member 21. Second Slot Section 22 Second protrusion 23 2A snap button 24 2B snap button 30, 130 Shock-absorbing material 40 Fixed member group 41-43 Fixing members 41a~43a Belt section 41b~43b Buckle 41c~43c Fixed piece 131 Impact-absorbing base 132 Impact-absorbing extension C Clearance d1, d2 Bottom end surface f1, f2 convex surface h1~h3 through hole i3 Inner о3 Front side r1, r2 reverse side u1 Upper end surface

Claims

1. A non-metallic shock-absorbing member to cover the front of the shin, The system includes an aluminum protective member attached to the shock-absorbing member to protect the shin, The protective member is curved to follow the front of the shin and is characterized by having a frame portion at the periphery and a protruding portion that extends from the frame portion. Protective equipment.

2. The protective member is characterized by having a plurality of the protruding portions. The protective device according to claim 1.

3. The first protective member is a separate component from the aforementioned protective member, and further comprises a second aluminum protective member that is attached to the impact-absorbing member to protect the knee. The aforementioned shock-absorbing member is for covering the shin and the front part of the knee, The first protective member and the second protective member are attached to the impact-absorbing member along the longitudinal direction of the impact-absorbing member, The protective device according to claim 1.

4. The second protective member is curved to conform to the front of the knee and is characterized by having a frame portion at its peripheral edge and a protruding portion that extends from the frame portion. The protective device according to claim 3.

5. The protective member is characterized by being detachable from the shock-absorbing member. The protective device according to claim 1.

6. The second protective member is characterized by being detachable from the impact-absorbing member. The protective device according to claim 3.

7. The curvature of the protective member is characterized in that one side in the longitudinal direction of the protective member is greater than the other side. The protective device according to claim 1.

8. The lower end surface of the protective member is recessed toward the longitudinal direction upward of the protective member on the widthwise center side of the protective member. The protective device according to claim 1.

9. The impact-absorbing member includes an impact-absorbing extension that extends below the lower end surface of the protective member in the longitudinal direction of the protective member. The protective device according to claim 1.

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