JPH0663909U - Fall prevention nail - Google Patents

Abstract

(57) [Abstract] [Purpose] The number of manufacturing steps is reduced by facilitating the driving work and simplifying the structure. It is an object of the present invention to provide a fall prevention nail that prevents rainwater and the like from entering from the interface. [Structure] A nail body 4 in which a wire rod is folded in half to form a short shaft 2 and a long shaft 3, and a notch fixed to the top end of the short shaft 2 and fitted with the long shaft 3. The flange portion 5 having the portion 5a is provided, and the notch groove 6 is provided at a required position on the side surface of the short shaft 2 and / or the long shaft 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nail which does not fall off for fixing building structural members for interior and exterior such as roof tiles, crosspieces or decorative plywood to a soft material such as a base plate as a base or a hard material such as an ALC plate or an iron plate.

[0002]

[Prior art]

 Conventionally, as a nail for fixing a building structural material for interior and exterior to a base material made of a soft material such as wood or a hard material such as an ALC plate or an iron plate, for example, as proposed by the present applicant, for example, Japanese Utility Model 4- As disclosed in Japanese Patent No. 17856, as shown in FIG. 11, a long nail 50 made of a hard material and a short nail 51 made of a material softer than the long nail 50 are connected to each other at their tips, The short nail 50 is provided with a collar portion 53 that is locked to a washer 52 into which the long nail 50 and the short nail 51 are inserted.

[0003]

[Problems to be solved by the device]

 However, in the structure disclosed in the above publication, when the building structure member for external use and the ground are driven, the collar portion 53 abuts the surface of the building structure member through the washer 52, and further when the long nail 50 is driven. In addition, the tip of the long nail 50 is stopped by the tip of the short nail 51. Moreover, since the long nail 50 is uniformly made of a hard material, depending on the angle of tapping from above, the long nail 50 is However, there is a problem that the part is bent above the collar part 53.

Further, when the long nail 50 bends while the long nail 50 is driven in further after the collar portion 53 comes into contact with the building structure member via the washer 52, the short nail 51 and the long nail 50. There is a problem that it is not easy to remove because the tip of and is bent in the base.

Further, even if the nail is normally driven, rainwater and the like will infiltrate through the gap between the long nail 50 and the short nail 51 or the interface between the both nails and the interior / exterior building structural member and the ground, and the ground board of the ground, etc. There is a problem of spoiling.

The present invention has been made in view of such problems of the conventional technology, and the purpose thereof is to facilitate the driving operation and to simplify the structure. It is an object of the present invention to provide a fall prevention nail that reduces the number of steps and prevents rainwater and the like from entering from the gap between the long nail and the short nail or the interface between both nails and the interior / exterior building structural member.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the falling prevention nail according to claim 1 of the present invention is a nail body in which a wire rod is folded in two to form a short shaft and a long shaft, and a nail fixed to the top end of the short shaft. In addition, the flange portion has a notch portion into which the long shaft is fitted, and a notch groove is provided at a required side surface of the short shaft and / or the long shaft.

In addition, the falling prevention nail according to claim 2 of the present invention is one in which work hardening treatment or work softening treatment is applied to a relevant portion of the short shaft and / or the long shaft.

Further, the falling prevention nail according to claim 3 of the present invention is one in which a water-repellent resin material is applied to a gap between the long shaft and the short shaft.

According to a fourth aspect of the present invention, in the fall prevention nail, required portions of the nail body are covered with a water-repellent resin material.

[0011]

[Action]

 According to the fall prevention nail according to claim 1 of the present invention, the tip of the nail body formed by folding the wire rod in two is brought into contact with the building structural material for interior and exterior substantially perpendicularly, and the top end of the long shaft is If you hit it with a mallet from above and drive it into the base plate of the ground through the building structure material for interior and exterior, both the short axis and the long axis will be buried, and the collar will contact the interior and exterior building material. When they come into contact with each other, the short shaft stops burying, so if the top end of the long shaft is further hit, it will bend at the notch groove provided at the required position of the short shaft and / or the long shaft, and will be locked in a state where it cannot be pulled out easily. To be done.

Further, according to the captive nail of claim 2, if the weak portion and the strong portion are provided by performing the work hardening treatment or the work softening treatment, the collar portion becomes the interior / exterior building structural material. When the top end of the long shaft is struck further, the fall-out prevention nail that has been driven in until it abuts bends only at this weak part. Therefore, if the strength of the curved portion is weakened, the curved portion is also curved and similarly locked in a state where it is difficult to pull out.

According to the falling prevention nail of claim 3, the water repellent resin material is applied to the gap between the long shaft and the short shaft so that the short shaft and the long shaft are formed after the driving. Fill in the gaps to prevent rainwater from entering.

Further, according to the fall prevention nail of claim 4, by covering a required portion of the nail body with a water-repellent resin material, a gap between the long shaft and the short shaft or both nails and interior / exterior building Prevents infiltration of rainwater etc. from the interface between structural members and base members.

[0015]

【Example】

 An embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, a fall prevention nail 1 according to a first embodiment of the present invention is formed by forming a short shaft 2 and a long shaft 3 by folding a single wire rod made of iron or the like in two. A large-diameter collar portion 5 is fixed to the top end of the short shaft 2 of the nail body 4, and the long shaft 3 is fitted into the cutout portion 5a provided in the collar portion 5, whereby the short shaft 2 And the long shaft 3 are provided in parallel. Then, a cutout groove 6 is formed by cutting the intermediate side surface of the short shaft 2. Such a notch groove 6 may be provided on both the short shaft 2 and the long shaft 3 as shown in FIG. Further, as shown in FIG. 3, if the tip 4a of the nail body 4 is sharply processed, it can be easily driven into a hard material such as an ALC plate.

As shown in FIG. 4, the fall-prevention nail 1 having such a configuration has the tip 4 a of the nail body 4 set substantially perpendicular to the building construction material 7 for interior and exterior, and the top end of the long shaft 3 is fixed. Hit with a hammer or the like to drive. Then, when the tip 4a of the nail body 4 penetrates the interior / exterior building structure material 7 and is further driven into the base 8, and the collar portion 5 comes into contact with the interior / exterior building structure member 7, the short shaft 2 is further driven. However, when the long shaft 3 is further driven, the short shaft 2 is pushed by the long shaft 3 through the tip 4a and sharply bends at the groove of the notched groove 6 having a weak strength, so that the nail body 4 The tip 4a is pushed by the long shaft 3 and bites into the base 8 to make it difficult to remove.

In this way, the fall prevention nail 1 is curved with the notch groove 6 as a boundary, and bites into the base 8 composed of an ALC plate or the like to prevent the pull-out securely, and The base 8 and the base 8 are firmly fixed.

Further, as shown in FIG. 5, the notch 5a provided in the collar 5 and into which the long shaft 3 is fitted does not allow the fitted long shaft 3 to come off easily. The opening is narrower than the diameter of the long shaft 3. Therefore, even when the long shaft 3 is driven in, it does not come out from the cutout portion 5a of the collar portion 5 to the outside.

As shown in FIG. 6, a fall prevention nail 1 according to a second embodiment of the present invention comprises a nail body 4 composed of, for example, a short shaft 2 and a long shaft 3 made of a soft wire material. By heat-treating the part marked with a mesh, the part is hardened. That is, the portion not subjected to this heat treatment is easily bent. Therefore, the lower part of the long shaft 3 shown in the figure is always bent in a portion not subjected to heat treatment, so that it is securely fixed to the lower layer 8 such as an ALC plate and reliability is improved. Moreover, since the long shaft 3 is hardened, it is difficult to bend at the portion above the collar portion 5, and it is easy to drive. In the case of embrittlement due to high-temperature treatment, such as in ferrite stainless steel, heat treatment is applied to the portion to be bent. Further, in the case of austenitic stainless steel having a high ductility such as 18-8 stainless steel, the portion marked with a mesh line in the figure is work hardened by knurling. The work hardening treatment or the work softening treatment may be applied to the short shaft 2 as well as the long shaft 3. When the work hardening treatment or the work softening treatment is performed, the notch groove 6 is omitted. Good.

As shown in FIGS. 7 and 8, the falling prevention nail 1 of the third embodiment according to the present invention has a water repellent resin material 9 such as silicone rubber in the gap between the long shaft 3 and the short shaft 2. Has been applied.

By applying the resin material 9 in this manner, the gap generated between the short shaft 2 and the long shaft 3 is filled and rainwater and the like are prevented from entering. By thus preventing the infiltration of water such as rainwater, it is possible to prevent the corrosion of building materials, and also to prevent cracks or the like from being formed in the notched groove 6 of the short shaft 2 or the long shaft 3 when bending. Occurs, and even if the wire material such as iron or copper is exposed from the plated part, it works to prevent rust.

As shown in FIG. 9 and FIG. 10, the fall prevention nail 1 according to the fourth embodiment of the present invention is made of, for example, a resin material 9 having elasticity and water repellency such as a silicone rubber or the like. Is dipped, air dried, and applied so as to cover the short shaft 2 and the long shaft 3.

In this way, if the water-repellent resin material 9 is applied, intrusion of rainwater or the like is blocked and corrosion of the building material is prevented when the fall prevention nail 1 is driven in. Further, when the nail body 4 is bent, for example, even if the notch groove 6 is cracked and the internal wire material, such as iron or copper, is exposed from the plated portion, the notch groove 6 is covered with the water-repellent resin material 9. Therefore, it prevents rust from occurring.

[0025]

[Effect of device]

 In the fall-prevention nail according to claim 1 of the present invention, the collar portion abuts the interior / exterior building structural material to reliably stop the burial of the short shaft, and the notch provided at the required position of the short shaft and / or the long shaft. The groove portion is easy to bend, and the notch groove portion is surely curved inside the base plate etc. just by driving, so it is easy to drive, and the notch groove portion bends sharply and bites into the base material, making it difficult to remove Become. Moreover, since the structure is simple and welding can be eliminated, the manufacturing method is simplified, the number of manufacturing steps is reduced, and the yield is improved.

In the fall prevention nail according to claim 2 of the present invention, the strength of the portion of the nail body which is not bent can be made larger than the strength of the portion to be bent, and the nail body is easily bent, so that it is easy to drive. At the same time, it is reliably prevented from falling off.

In the fall prevention nail according to claim 3 of the present invention, since rainwater and the like are prevented from entering through the gap between the long shaft and the short shaft, corrosion of the interior and exterior building structural members and the base is prevented. Have an effect.

In the fall prevention nail according to claim 4 of the present invention, since rainwater and the like are prevented from entering from the gap between the long shaft and the short shaft or the interface between the both nails and the interior / exterior building structural member and the base member, It has the effect of preventing corrosion of wearing and construction structural members and the base.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a fall prevention nail according to claim 1 of the present invention.

FIG. 2 is a perspective view showing a fall prevention nail in which a notch groove, which is a component of the first embodiment, is provided on both a short shaft and a long shaft.

FIG. 3 is a perspective view showing a fall prevention nail having a sharp tip, which is a constituent element of the first embodiment.

FIG. 4 is a cross-sectional view showing a state where the fall prevention nail of the first embodiment is driven in.

FIG. 5 is a top view showing the first embodiment.

FIG. 6 is a perspective view showing a second embodiment of a fall prevention nail according to the present invention.

FIG. 7 is a perspective view showing a third embodiment of the captive nail according to the present invention.

8 is a cross-sectional view taken along the line AA of FIG.

FIG. 9 is a perspective view showing a fourth embodiment of a fall prevention nail according to the present invention.

10 is a sectional view taken along line BB of FIG.

FIG. 11 is a perspective view showing a conventional captive nail.

[Explanation of symbols]

 1 Fall Prevention Nail 2 Short Shaft 3 Long Shaft 4 Nail Body 5 Collar 5a Notch 6 Notch Groove 9 Resin Material

Claims (4)

[Scope of utility model registration request] 1. A nail body in which a wire rod is folded in two to form a short shaft and a long shaft, and a notch portion fixed to the top end of the short shaft for fitting the long shaft. A fall prevention nail having a collar portion, wherein a cutout groove is provided at a required position on a side surface of the short shaft and / or the long shaft. 2. The fall prevention nail according to claim 1, wherein work-hardening treatment or work-softening treatment is applied to a required portion of the short shaft and / or the long shaft. 3. The fall prevention nail according to claim 1, wherein a water-repellent resin material is applied between the long shaft and the short shaft. 4. The fall-off prevention nail according to claim 1, wherein required portions of the nail body are covered with a water-repellent resin material.