Washer

Abstract

To provide a washer capable of improving a construction process for fastening work.SOLUTION: A washer of the present invention comprises a flat plate part 10 having an opening formed therein, and a protrusion part 20 protruding from one side of the flat plate part and defining an internal communication hole that is connected to the opening. The protrusion part comprises a puncture part 22 that includes a tip of the protrusion part and is capable of puncturing a member to be punctured, and a rotation restriction part 23 that protrudes laterally from the puncture part and bites into the member to be punctured to restrict the rotation of the puncture part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a washer. [Background technology]

[0002] Generally, as shown in Fig. 6, an exterior wall 1000 of a building having a wooden frame is provided with, from the outdoor side to the indoor side, an exterior insulation material 1200, a base material 1300, and a fastening member 1400 such as a stud. On the outdoor side of the exterior insulation material 1200, an outer surface layer 1100 of the exterior wall 1000 is formed by, for example, a finishing coating material.

[0003] The exterior insulation material 1200 is fastened to a fastened member 1400 by a fastening member 2000 such as a screw. A washer 3000 is disposed between the fastening member 2000 and the exterior insulation material 1200. The washer 3000 reduces the embedding of the fastening member 2000 into the exterior insulation material 1200, and strengthens the fastening of the exterior insulation material 1200. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] U.S. Pat. No. 5,626,451 Summary of the Invention [Problem to be solved by the invention]

[0005] When fastening the exterior insulation material 1200 to the fastened member 1400 as shown in Fig. 6, the fastening member 2000 must be assembled in the washer 3000 beforehand, and then the worker must drive the fastening member 2000 into the exterior insulation material 1200. Therefore, there is room for improvement in the construction process.

[0006] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a washer that can improve the fastening work process. [Means for solving the problem]

[0007] A washer according to a first aspect of the present invention comprises: (1) A flat plate portion having an opening formed therein; a protrusion protruding from one side of the flat plate portion and defining a communication hole communicating with the opening therein; The protrusion is a puncture portion including a tip of the protrusion and capable of puncturing the member to be punctured; The washer is provided with a rotation restricting portion that protrudes laterally from the puncturing portion and bites into the member to be punctured to restrict rotation of the puncturing portion.

[0008] A washer according to one embodiment of the present invention comprises: (2) The protruding portion is located between the flat plate portion and the puncture portion, and includes a tapered portion whose outer diameter decreases from the flat plate portion side toward the puncture portion side, an inclination angle of the outer surface of the tapered portion with respect to the thickness direction of the flat plate portion is greater than an inclination angle of the outer surface of the puncture portion with respect to the thickness direction; The washer is as described in (1) above.

[0009] A washer according to one embodiment of the present invention comprises: (3) The rotation restricting portion is formed across the puncture portion and the tapered portion. The washer is as described in (2) above.

[0010] A washer according to one embodiment of the present invention comprises: (4) The puncture portion is cylindrical. A washer according to any one of (1) to (3) above.

[0011] A washer according to one embodiment of the present invention comprises: (5) A rib is provided around the protruding portion and protrudes from the flat plate portion to the one side. A washer according to any one of (1) to (4) above.

[0012] A washer according to one embodiment of the present invention comprises: (6) A groove is formed on the other surface of the flat plate portion so as to extend radially around the opening. A washer according to any one of (1) to (5) above.

[0013] A washer according to one embodiment of the present invention comprises: (7) Made of polypropylene resin. A washer according to any one of (1) to (6) above.

[0014] A washer according to one embodiment of the present invention comprises: (8) The rotation restriction portion is formed at a plurality of different positions in a circumferential direction around the puncture portion. A washer according to any one of (1) to (7) above. Effect of the Invention

[0015] According to the present invention, it is possible to provide a washer that can improve the construction process of fastening work. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view showing a washer according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a bottom view of the washer of FIG. 1. [Diagram 3] FIG. 2 is a top view of the washer of FIG. 1. [Figure 4] 13A and 13B are diagrams showing a state in which the puncturing portion of the washer is punctured into a member to be punctured. [Diagram 5] 13 is a diagram showing a state in which a screw has been driven into a washer and a puncture target member has been fastened to a fastening target member. FIG. [Figure 6]A diagram showing the exterior wall of a building in which the puncturing portion of a washer is punctured into a punctured member. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a washer according to the present invention will be described by way of example with reference to the drawings. In each drawing, the same reference numerals are used to designate the same components.

[0018] 1 is a diagram showing a washer 100 as a first embodiment of the washer according to the present invention. The washer 100 includes a flat plate portion 10 and a protruding portion 20.

[0019] The washer 100 may be made of polypropylene resin. Since polypropylene resin is relatively inexpensive, this configuration can reduce the manufacturing cost of the washer 100.

[0020] As shown in FIG. 2, an opening 11 is formed in the flat plate portion 10. The opening 11 may be located at the center of the flat plate portion 10. The cross-sectional shape of the opening 11 may be circular. The cross-sectional shape of the opening 11 may be other shapes such as a triangle, a rectangle, an ellipse, etc. The vicinity of the opening 11 of the flat plate portion 10 may be flexible so that the head 2000H of a screw 2000 having a diameter larger than the diameter of the opening 11 (see FIG. 5) can pass through the opening 11. The diameter of the screw 2000 may be 6 mm. The length of the screw 2000 may be 90 mm.

[0021] The flat plate portion 10 may be a disk. The flat plate portion 10 may be a disk having a diameter of 50 mm. The thickness of the flat plate portion 10 may be designed according to the required rigidity (for example, bending rigidity).

[0022] 1, the protrusion 20 protrudes from one side of the flat plate portion 10 (the side facing the reader from the paper surface in FIG. 3). The central axis A of the protrusion 20 may be perpendicular to the upper surface of the flat plate portion 10. The protrusion 20 defines a communication hole 21 therein that communicates with the opening 11. The shaft portion 2000S of the screw 2000 (see FIG. 5) can pass through the communication hole 21.

[0023] The protruding portion 20 includes a puncturing portion 22 and a rotation restricting portion 23 .

[0024] The puncturing portion 22 includes the tip of the protruding portion 20, and can puncture the punctured member 1200 as shown in Fig. 4. This configuration allows the worker to pierce the washer 100 alone, in other words, without the screw 2000, thread, or the like as a fastening member being assembled, into the punctured member 1200. Thereafter, with the washer 100 pierced into the punctured member 1200, the worker can drive the screw 2000 or the like, and fasten the punctured member 1200 to the fastening member 1500, such as a stud. In this way, the washer 100 can eliminate the need for the worker to previously assemble the screw 2000 into the washer 100, improving the construction process.

[0025] By reducing the contact area of ​​the puncturing part 22 with the member to be punctured 1200 (the area of ​​the tip surface of the puncturing part 22), the puncturing part 22 can more easily puncture the member to be punctured 1200. The contact area of ​​the puncturing part 22 with the member to be punctured 1200 is 0.7 cm 2 ~8.3cm 2 1.5 cm 2 ~4cm 2 is preferable. The cylindrical puncturing part 22 can puncture the member to be punctured 1200 while minimizing damage to the member to be punctured 1200. The thickness (thickness of the cylinder) of the cylindrical puncturing part 22 may be thin or the diameter may be small, so that the contact area of ​​the puncturing part 22 with the member to be punctured 1200 may be small. The thickness of the cylindrical puncturing part 22 may be 0.5 mm to 2 mm, and desirably 0.8 mm to 1.3 mm. The puncturing part 22 may be cylindrical. The puncturing part 22 may be in the shape of a square cylinder, an elliptical cylinder, or the like.

[0026] The puncturing portion 22 may include a puncturing taper portion 22A whose outer diameter decreases from the base end toward the tip. In other words, the outer surface of the puncturing taper portion 22A may have an inclination angle θ1 (see FIG. 4) with respect to the thickness direction d1 of the flat plate portion 10. The puncturing portion 22 including the puncturing taper portion 22A may be more likely to pierce the punctured member 1200 than when the outer diameter of the puncturing portion 22 is constant. The inclination angle θ1 may be 0° to 40°, and is preferably 3° to 10°. It is preferable that the puncturing taper portion 22A is disposed at the tip of the puncturing portion 22 from the viewpoint of making it easier for the puncturing portion 22 to pierce the punctured member 1200. In another embodiment, the puncturing portion 22 may not include the puncturing taper portion 22A, and the diameter of the cross section of the outer surface of the puncturing portion 22 may be constant.

[0027] The puncturing portion 22 may include a tubular portion 22B. The diameter of the cross section of the outer surface of the tubular portion 22B is constant. The tubular portion 22B may be disposed on the base end side of the puncturing taper portion 22A. By including the tubular portion 22B in the puncturing portion 22, the resistance when the puncturing portion 22 is pierced into the punctured member 1200 can be reduced.

[0028] The rotation restricting portion 23 protrudes laterally from the puncturing portion 22 (in this embodiment, radially outward from the puncturing portion 22) and, as shown in FIGS. 4 and 5, bites into the member to be punctured 1200 to restrict the rotation of the puncturing portion 22.

[0029] When the screw 2000 is fastened to a fastened member 1500 such as a stud, the screw 2000 rotates. At this time, a conventional washer such as that disclosed in Patent Document 1 may rotate together with the screw 2000. This rotation may reduce the workability of the fastening operation.

[0030] In contrast, washer 100 of the present embodiment includes rotation restricting portion 23 that protrudes laterally from puncturing portion 22, bites into punctured member 1200, and restricts the rotation of puncturing portion 22, thereby reducing co-rotation. Therefore, washer 100 can improve the workability of the fastening operation.

[0031] Washer 100 may include a plurality of rotation restricting portions 23. From the viewpoint of maintaining the balance of washer 100, it is preferable that a plurality of rotation restricting portions 23 are formed at different positions in the circumferential direction d2 around puncturing portion 22. Rotation restricting portions 23 may be disposed symmetrically with respect to central axis A when viewed from the direction along central axis A. Note that if the number of rotation restricting portions 23 is increased, a large resistance may be applied to puncturing portion 22 when puncturing portion 22 punctures member 1200 to be punctured.

[0032] The rotation restricting portion 23 may be formed across the puncture portion 22 and the tapered portion 24 described later. The rotation restricting portion 23 may further extend to the tube portion 22B. The rotation restricting portion 23 may be a thin plate extending in the thickness direction d1 of the flat plate portion 10. The thickness of the rotation restricting portion 23 may be 0.4 mm to 2.0 mm, and preferably 0.5 mm to 1.0 mm. The edge of the rotation restricting portion 23 may have an inclination angle θ2 (see FIG. 4) with respect to the thickness direction d1 of the flat plate portion 10. The inclination angle θ2 may be 28° to 55°, and preferably 32° to 40°. More specifically, the rotation restricting portion 23 may be divergent in the direction from the tip to the base end of the puncture portion 22. The rotation restricting portion 23 may be connected to the flat plate portion 10.

[0033] The protruding portion 20 may be located between the flat plate portion 10 and the puncture portion 22 and may include a tapered portion 24 whose outer diameter decreases from the flat plate portion 10 side toward the puncture portion 22 side. In other words, in a cross section including the central axis A of the puncture portion 22, the outer surface of the tapered portion 24 may have an inclination angle θ3 (see FIG. 4) with respect to the thickness direction d1 of the flat plate portion 10. The inclination angle θ3 of the outer surface of the tapered portion 24 with respect to the thickness direction d1 of the flat plate portion 10 may be larger than the inclination angle θ1 of the outer surface of the puncture portion 22 with respect to the thickness direction d1. The inclination angle θ3 may be approximately equal to the inclination angle θ2 of the edge of the rotation restricting portion 23 with respect to the thickness direction d1.

[0034] However, in other embodiments, the protrusion 20 may not include the tapered portion 24 .

[0035] The washer 100 may be capable of accommodating a screw 2000, a screw, or the like as a fastening member. More specifically, a recess may be formed across the flat plate portion 10 and the protruding portion 20 (particularly the tapered portion 24) with a bottom surface perpendicular to the thickness direction d1 of the flat plate portion 10. A part of the fastening member (particularly the head of the fastening member) may be supported in the recess. A recess supporting a part of the fastening member may be formed only in the flat plate portion 10.

[0036] The washer 100 may include a rib 25 that protrudes from the flat plate portion 10 to one side (the side from which the protrusion 20 protrudes) around the protrusion 20. This configuration can improve the rigidity of the flat plate portion 10. By improving the rigidity of the flat plate portion 10, bending of the flat plate portion 10 can be reduced when a fastening member is driven in to fasten the puncture target member 1200 to the fastened target member 1500.

[0037] The washer 100 may include a plurality of ribs 25. Increasing the number of ribs 25 can further improve the rigidity of the flat plate portion 10. The number of ribs 25 may be greater than the number of rotation restriction portions 23. The number or height of the ribs 25 may be designed based on the rigidity required for the flat plate portion 10. A plurality of ribs 25 may be formed at different positions in the circumferential direction d2 (see FIG. 3 ) around the puncture portion 22. The ribs 25 may be arranged symmetrically with respect to the central axis A when viewed from a direction along the central axis A.

[0038] The rib 25 may be connected to the outer surface of the tapered portion 24 of the protruding portion 20 across the thickness direction d1 of the flat plate portion 10. This configuration may improve the rigidity of the tapered portion 24. The rib 25 may terminate in the thickness direction d1 just before the cylindrical portion 22B.

[0039] As shown in Figure 2, a groove 12 extending radially around the opening 11 may be formed on the other side of the flat plate portion 10 (the side opposite to the side from which the protrusion 20 protrudes, and shown in Figure 2).

[0040] The grooves 12 and the ribs 25 may overlap when viewed from a direction perpendicular to the thickness direction d1 of the flat plate portion 10. With this configuration, even if the grooves 12 are formed in the flat plate portion 10, the rigidity of the flat plate portion 10 can be ensured.

[0041] Through holes 13A, 13B may be formed in the flat plate portion 10. The cross-sectional shape of the through holes 13A, 13B may be triangular, but is not limited to this shape. A plurality of through holes 13A, 13B may be formed in the radial direction of the flat plate portion 10. The cross section of the radially outer through hole 13B may be larger than the cross section of the radially inner through hole 13A.

[0042] Hereinafter, an example of how a punctured member is fastened to a fastening member using washer 100 will be described. In the example shown here, referring to Fig. 4 and Fig. 5, punctured member 1200 is composed of soft material 1200B formed of a panel-shaped insulating material of a foamed resin such as phenol foam, and hard face materials 1200A, 1200C arranged on both sides of soft material 1200B and formed of nonwoven fabric or the like. However, the configuration of the punctured member is not limited to the configuration shown here.

[0043] First, referring to FIG. 4, the puncture target member 1200, the base material 1300, and the fastened member 1400 are arranged.

[0044] 4, washer 100 is pierced, for example manually by an operator, into face material 1200A and soft material 1200B that constitute punctured member 1200. That is, washer 100 penetrates face material 1200A and pierces soft material 1200B.

[0045] The puncture portion 22 of the protrusion 20 of the washer 100 punctures a part of the face material 1200A and the soft material 1200B with a small force. On the other hand, even if an attempt is made to insert the protrusion 20 of the washer 100 into the face material 1200A with more force than in this state, a large resistance force is generated from the face material 1200A due to the inclination of the tapered portion 24. Therefore, with the normal force of the operator, the tapered portion 24 does not enter the face material 1200A, and the flat plate portion 10 is separated from the face material 1200A. In this state, at least a part of the rotation restriction portion 23 is biting into the face material 1200A.

[0046] In a state where the puncture portion 22 is punctured into the face material 1200A and the soft material 1200B as the puncture target member, the washer 100 can be temporarily fixed to the puncture target member 1200. At this time, the flat plate portion 10 is separated from the face material 1200A as described above and shown in FIG. 4. Even when viewed from a distance, the worker can easily distinguish between the washer 100A in this state and the washer 100B in a state where the puncture target member 1200 is fastened to the fastening target member 1500 by the screw 2000 (the flat plate portion 10 is in contact with the puncture target member 1200) as described later and shown in FIG. 5. This can prevent the worker from forgetting to drive the screw 2000 into the washer 100.

[0047] With the puncturing portion 22 punctured into the punctured member, the worker can drive the screw 2000 into the washer 100. More specifically, the worker inserts the screw 2000 from the opening 11 of the flat plate portion 10 of the washer 100, and abuts the screw 2000 against the face material 1200A within the communication hole 21 of the protruding portion 20. The worker further uses an electric screwdriver or the like to drive the screw 2000 into the punctured member 1200 (face material 1200A, soft material 1200B, and face material 1200C), the base material 1300, and the fastened member 1400, as shown in Fig. 5. At the start of the driving operation, at least a portion of the rotation restricting portion 23 is biting into the face material 1200A. Therefore, when the washer 100 tries to rotate in the rotation direction of the screw 2000, a reaction force is applied to the washer 100 from the face material 1200A. This can prevent the washer 100 from rotating together with the screw 2000. As described above, the worker can more easily drive the screw 2000 into the washer 100.

[0048] In this manner, the puncture target member 1200 is fastened to the fastening target member 1400. After that, a base coat is applied to the surfaces of the face material 1200A and the washer 100. The base coat applied to the face material 1200A and the washer 100 permeates the groove 12 and the through holes 13A, 13A of the washer 100, and the washer 100 and the puncture target member 1200 including the face material 1200A can be firmly bonded to each other. [Explanation of symbols]

[0049] 100, 100A, 100B: Washer 10: Flat plate part 11:Aperture 12: Groove 13A, 13B: Through hole 20:Protrusion 21:Communication hole 22: Puncture part 22A: Puncture tapered section 22B: Cylinder part 23: Rotation control part 24: Tapered section 25: Rib 1000: Exterior wall 1100: Outer layer 1200: Punctured material 1200A, 1200C: Surface material 1200B: Soft material 1300: Floor material 1400: Bonded material 2000:ビス 2000H:Head 2000S: shaft

Claims

1. A flat plate portion having an opening formed therein; a protrusion protruding from one side of the flat plate portion and defining a communication hole communicating with the opening therein; The protrusion is a puncture portion including a tip of the protrusion and capable of puncturing the member to be punctured; a rotation restricting portion that protrudes laterally from the puncturing portion and bites into the member to be punctured to restrict rotation of the puncturing portion.

2. The protruding portion is located between the flat plate portion and the puncture portion, and includes a tapered portion whose outer diameter decreases from the flat plate portion side toward the puncture portion side, The washer according to claim 1 , wherein an inclination angle of the outer surface of the tapered portion relative to a thickness direction of the flat plate portion is greater than an inclination angle of the outer surface of the puncture portion relative to the thickness direction.

3. The rotation restricting portion is formed across the puncture portion and the tapered portion.

3. The washer of claim 2.

4. The puncture portion is cylindrical. A washer according to any one of claims 1 to 3.

5. A rib is provided around the protruding portion and protrudes from the flat plate portion to the one side. A washer according to any one of claims 1 to 3.

6. A groove is formed on the other surface of the flat plate portion so as to extend radially around the opening. A washer according to any one of claims 1 to 3.

7. The washer according to claim 1 , which is made of polypropylene resin.

8. The washer according to claim 1 , wherein the rotation restricting portion is formed in a plurality of positions at different circumferential positions around the puncture portion.

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