JP3025593U - Welding anchor driving tip for mobile hammer drill - Google Patents

Abstract

(57) [Summary] [Purpose] Attach a welding anchor to a portable hammer drill that can reliably and easily perform a large amount of hammering in a short time without dropping the anchor even in places where it is difficult to work, such as narrow spaces and high places. It is a tip. [Structure] An anchor head portion (about 1/4 of the anchor length) is attached to a cylindrical object 1 formed of a material having impact resistance such as a metal alloy having a plug shape 3 that can be mounted in a mounting hole of a portable hammer drill. A hole 5 is provided so that the can be inserted. Then, the elastic head 2 is pressure-bonded to the anchor head portion at one or more side surfaces, and a hole 4 is provided so that the anchor can be held. The oil resistant elastic rubber 2 is fitted into the hole 4 on the side surface of the tip.

Description

[Detailed description of the device]

[0001]

[Field of Industrial Application] The present invention is to put a large number of welding anchors into concrete or the like safely and easily.

[0002]

2. Description of the Related Art A hole is drilled in concrete or the like with a drill, and a hammer is used to drive it by hand.

[0003]

[Problems to be Solved by the Invention] There were the following drawbacks and risks when driving an anchor.

When there is an existing fitting or the like in a narrow space or around it, the hammer may damage the existing fitting or the hammer may hit the surrounding wall or the like to injure the existing fitting or the like. It was dangerous.

When driving a large amount, fatigue caused by the work was extremely large.

[0006] When driving in the upward direction, it is necessary to press the anchor with a finger so that the anchor does not fall out, and there is a risk of hitting the finger with a hammer. In addition, when the first shot of the hammer was not sure when working at height, the anchor fell out, and when there was a person working below, it was very dangerous, and the fatigue caused by that work was extremely great.

[0007]

[Means for Solving the Problems] In order to solve the above problems, in the present invention, the hammering function of a portable hammer drill is used for hammering work, and the portable hammer drill has a shape that can be attached to the mounting opening. A cylindrical object made of a shock-resistant material such as a metal alloy has a hole for inserting the anchor head part and holds the inserted anchor. It is an anchor-driving tip tool for a portable hammer drill that has a hole so that it can be crimped with a rubber. (See Figures 1 and 2)

Further, in order to omit the work of replacing the drill and the tip of the present invention, and to make the work smoother, a hole is formed so that the drill can be inserted into the tip, and the tip can be moved up and down. It is claimed that a spring is inserted between the drill and the mounting hole of the drill, one of the springs is attached to the tip tool, and the other is fixed with a tightening tool that covers and secures the mounting hole of the portable hammer drill. Item 2. (See Figures 5 and 6)

When used with the tip tool of the above-mentioned claim 2, it has a shape in which a groove is provided on the side surface of the welding anchor so as to be more suitable, and it is recessed in an inverted triangular pyramid shape so that the drill tip is in close contact with the anchor head portion. A welding anchor is claim 3. (See Figure 7)

[0010]

[Operation] The tip tool is attached to the mounting hole of the mobile hammer drill, and the anchor is set in the anchor insertion hole of the tip tool. Even if the mobile hammer drill is directed downward in this state, the elastic rubber is anchored from the side. Hold. Then, the anchor held in the hole already drilled can be inserted, and the hammer function of the portable hammer drill can be activated to complete the driving easily and safely. (See Figures 1 and 2)

Further, when the hole is drilled, the tip tool is lifted upward so as not to interfere with the hole drilling work, and the anchor can be set and driven as it is, and claim 2 is provided. (See Figures 5 and 6)

When used in the tip tool of the above-mentioned claim 2, a welding anchor having a groove on the side surface of the welding anchor so as to be more suitable, and having a recess shape of an inverted triangular pyramid so that the drill tip is in close contact with the anchor head portion. Is claim 3. (See Figure 7)

[0013]

[Example] A cylindrical head 1 formed of a material having impact resistance such as a metal alloy having a plug shape 3 that can be mounted in a mounting hole of a portable hammer drill is attached to an anchor head portion (1/4 of an anchor length). Hole 5 is provided so that (about) can be inserted. Then, the elastic head 2 is pressure-bonded to the anchor head portion at one or more side surfaces, and holes 4 are provided so that the anchor can be held. Insert the oil resistant elastic rubber 2 into the hole 4 on the side of the tip.

Regarding the oil-resistant elastic rubber 2, in addition to the O-shaped ring of FIG. 1 (2), the number of parts increases, but one or more spherical oil-resistant elastic rubbers as shown in FIG. 3 (2) are used. The same effect can be obtained by pressing with a ring clip 2a formed of a material having impact properties.

Next, an embodiment of claim 2 will be described. The mounting plug 3 is removed, and a groove 9 is provided so that the spring 7 is fixed to the rear end of the tip 1 through which the anchor insertion hole 5 is penetrated with the same diameter and the spring 7 is not easily removed. Fit the small diameter side of the spring 7 into the groove 9 and fix it. On the large-diameter side of the spring 7, a clip ring 8 formed of a material having impact resistance such as plastic, to which a tightening screw 10 is added, is fixed. A spring 7 is fixed to the clip ring 8 and a groove 11 is provided so as not to hinder tightening.

Next, an embodiment of claim 3 will be described. An anchor holding groove 12 is provided on the side surface of the welding anchor, and a recess 13 is formed in an inverted triangular pyramid shape so that the drill tip is in close contact with the anchor head portion.

As a method of use, a hole is drilled in a concrete or the like with a drill or the like to a depth such that the head portion of the anchor is exposed. Next, attach the attachment plug 3 to the attachment opening of the portable hammer drill. Then, the anchor is inserted into the anchor insertion hole 5, the anchor remains held by the elastic rubber 2, and it is easy to insert the anchor into the hole opened with the drill and operate the hammer drill to press it, and the anchor The driving can be completed.

Next, as a method of use of claim 2, the clip ring 8, the large diameter side of the spring 7, the small diameter side of the spring 7, and the tip 1 are passed through a drill in a portable hammer hammer equipped with a drill, and a tightening screw is used. Secure it to the portable hammer drill by tightening 10. Operate a drill to make a hole in concrete. Then, the tip 1 pushes up the spring 7 according to the drilling depth of the drill 6 to complete the drilling. At this time, the maximum drilling depth of the drill is set by the number of turns of the spring 7. Next, insert the anchor into the anchor insertion hole 5, the anchor remains held by the elastic rubber 2, and it can be easily and quickly driven by inserting the hammer into the hole opened by the hammer hammer and pressing it. Can be completed. Since the drill tip may be heated during the drilling work, it is desirable that the elastic rubber 2 contacting the drill tip have heat resistance and abrasion resistance as much as possible. However, in the case where the anchor holding groove 12 is provided on the side surface of the anchor head portion as shown in FIG. 7, even if a metal alloy having abrasion resistance is used instead of the elastic rubber 2, the anchor can be sufficiently held. it is conceivable that.

[0019]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, by using the hammer attached to the portable hammer drill, it is possible to safely and easily without dropping the anchor even in a work place such as a narrow space or a high place where work cannot be performed smoothly. You can drive a large number of anchors in a short time. Moreover, the number of parts is small, the cost is low, and it can be easily produced.

According to the second aspect of the present invention, the work can be smoothly and efficiently performed without replacing the drill and the tip tool, and therefore it is considered to be more suitable for the case where one person works alone.

According to the third aspect, the anchor can be held more reliably when used in the tip tool according to the first and second aspects.

[0023]

[Brief description of drawings]

FIG. 1 is a perspective view of each part of the tip tool according to claim 1 by a stereoscopic method.

FIG. 2 is a trigonometric drawing of the tip tool cylindrical portion of claim 1;

FIG. 3 is a perspective view of each component according to the stereoscopic method of another embodiment of claim 1.

FIG. 4 is a trigonometric drawing of another embodiment of claim 1;

FIG. 5 is a side view according to the stereoscopic method of claim 2.

FIG. 6 is a sectional view of claim 2.

FIG. 7 is a drawing according to the trigonometric method of claim 3.

[0024]

[Explanation of symbols]

 1 Cylindrical body 2 Elastic rubber 2'Clip ring 3 Mounting plug 4 Elastic rubber crimp hole 5 Anchor insertion hole 6 Drill 7 Spring 8 Clip ring 9 Spring fixing groove 10 Tightening screw 11 Spring fixing groove 12 Anchor holding groove 13 Drill tip receiving groove

Claims (3)

[Scope of utility model registration request] 1. A cylindrical object formed of a material having impact resistance such as a metal alloy has a hole so that the anchor head portion can be inserted, and the inserted anchor is held so that the side surface of the anchor has elasticity. An anchor driving tip tool for a portable hammer drill having a hole so that an oil-resistant rubber or the like that it has can be crimped. 2. An anchor driving tip for a portable hammer drill, wherein a spring is attached so that a hole can be made so that a drill can be inserted into the tip and the spring can be moved up and down. 3. When using the tip tool according to claim 2,
It is a welding anchor having a groove formed on the side surface of the welding anchor so as to be more suitable, and having a shape that is recessed in an inverted triangular pyramid shape so that the drill tip is in close contact with the anchor head portion.