JPH08200331A - Joint bar tool with anchor and anchor - Google Patents

Abstract

PURPOSE: To provide a joint bar tool with an anchor and the anchor excellent in workability at low cost. CONSTITUTION: This anchor is constituted of a hook member 2 having a constriction recess 5 nearly at the center section of a hook lever body 4, a wedge member 3 sharpened with the tip section and located in the constriction recess 5 of the hook member 2, and a joint bar 1 bored with a bottomed holding hole 10 to be inserted with the wedge member 3 in the axial direction on the front end face of the joint bar 1 with the prescribed length and bored with a through hole to be inserted with the hook member 2 in the radial direction of the joint bar 1 perpendicularly to the holding hole 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bracing tool and an anchor provided with an anchor for driving a concrete surface or the like.

[0002]

2. Description of the Related Art As a conventional differential bar anchor, as shown in FIGS. 7 and 8, one side of a collar b is crimped to the end of a deformed steel bar a by a pressing device and the other side of the collar b is cross-shaped. -Shaped slit c is formed, and a truncated cone-shaped wedge body d
Is pushed into the other side of the collar b, and after being inserted into the mounting hole f formed in the concrete surface e and then pressed from the upper end of the deformed steel bar a, the collar b expands to form an inverted triangle to prevent the retaining. There are things that can demonstrate.

[0003]

However, in the conventional differential bar anchor, it is necessary to form a cross-shaped slit c on the other side of the collar b, and moreover, the collar b is formed at the end of the deformed steel bar a. Since it is necessary to crimp one side with a pressing device, it must be expensive in price, and
When one side of the collar b is crimped to the end portion of the deformed steel bar a by a pressing device, a mounting hole f having a diameter larger than that of the collar b is formed in order to form a mounting hole f to be pushed in on the concrete surface e. Since it is necessary, there is a problem that it takes time and labor for the drilling work on the concrete surface e.

Therefore, the present invention is intended to provide a differential braces and an anchor having an anchor which is inexpensive and excellent in workability.

[0005]

In order to achieve the above-mentioned object, the present invention provides a locking member having a constricted recess at a substantially central portion of a locking rod; and a locking member located in the constricted recess of the locking member. A wedge member having a sharpened tip portion; a bottomed holding hole into which the wedge member is inserted is bored in the axial direction of the leading end surface of the differential line having a predetermined length, and is orthogonal to the holding hole. As described above, the anchor includes the differential bar having the through hole for inserting the locking member in the radial direction of the differential bar.

Due to the effects described below, it is more preferable to use a constricted recess of the locking member provided around the surface of the locking rod or to have both ends of the locking member sharpened.

In order to achieve the above object, a locking member having a constriction recessed portion at a substantially central portion of a locking rod; and a wedge member having a sharp tip so as to be located in the constricted recessed portion of the locking member. The wedge member is inserted from one end, and a holding hole into which a bolt or the like can be inserted from the other end is bored in the axial direction, and the locking member is provided in the radial direction of the differential line so as to be orthogonal to the holding hole. The present invention is intended to provide an anchor composed of a sleeve having a through hole for inserting thereinto.

Due to the effects described later, it is preferable that the constricted concave portion of the locking member is provided around the surface of the locking rod, or both ends of the locking member are sharpened.

[0009]

As described above, according to the reinforcing bar provided with the anchor according to claim 1 of the present invention, a bottomed mounting hole having a diameter slightly larger than the outer diameter of the reinforcing bar is formed on the concrete surface, and the mounting is performed. When inserting the distal end of the bracing tool into the hole and pressing the proximal end, the leading end of the wedge member punches out the constricted recess of the locking member, and the locking member is cut in two at approximately the center, and each locking The member projects laterally from the through hole, and the locking member is held in a state where it is recessed on the concrete surface, and the braces are fixed.

According to the anchor of claim 4, a bottomed mounting hole having a diameter slightly larger than the outer diameter of the sleeve of the anchor is bored on the concrete surface, and the tip of the anchor is inserted into the mounting hole to form a base end. When is pressed, the tip of the wedge member punches out the constricted concave portion of the locking member and the locking member is cut into two at the substantially central portion, and each locking member projects laterally from the through hole to Since the anchor is fixed while being held in a state where it is hard to bury concrete, a bolt or the like can be fitted into the other end of the holding hole of the sleeve.

According to the braces provided with the anchor of claim 2 and the anchor of claim 5, since the constricted recess of the locking member is provided around the surface of the locking rod, the tip of the wedge member is locked. The constricted recess of the member can be easily punched and cut.

According to the braces provided with the anchor of claim 3 and the anchor of claim 6, since both ends of the locking member are sharpened, the cut locking member projects laterally from the through hole. , Easy to be dented and held on concrete surface.

[0013]

The details of the present invention will be described with reference to the embodiments shown in the drawings. As shown in FIGS. 1 to 3, the differential braces A provided with anchors (hereinafter referred to as “differential braces A”) include the differential braces 1, the locking members 2, and the wedge members 3. It consists of and.

As shown in FIGS. 1 and 2, the locking member 2 is formed by cutting out a metal locking rod 4 and forming a constricted concave portion 5 in the form of a triangular groove at a substantially central portion. Both ends of the rod 4 are sharpened and the tip is cut off a little to form the contact portion 6.

The wedge member 3 is, as shown in FIGS. 1 and 2,
A shaft portion 8 is erected from the flange portion 7, and a tapered portion 9 is provided at the tip end portion of the shaft portion 8 so that the shaft portion 8 can be fitted into the constricted concave portion 5 which is a triangular groove formed in the locking member 2. It is a thing.

The differential streak 1 is devised so that the locking member 2 and the wedge member 3 are incorporated at the tip end thereof. Specifically, the wedge member 3 is inserted into the bottom surface of the differential streak 1 having a predetermined length. In order to
A bottomed holding hole 10 which is deeper than the length of the shaft portion 8 of the wedge member 3 is bored in the axial direction, and the locking member is provided in the radial direction of the differential bar 1 so as to be orthogonal to the holding hole 10. A through hole 11 for inserting 2 is provided.

Then, in the differential braces A, the locking member 2 is inserted into the through hole 11 of the differential bar 1, the wedge member 3 is inserted into the holding hole 10, and the taper portion 9 of the wedge member 3 is locked. It is assembled as shown in FIG. 3 (a) by fitting it into the constricted concave portion 5 having two triangular grooves provided around it.

According to the reinforcing bar A of this embodiment, a bottomed mounting hole having a diameter slightly larger than the outer diameter of the reinforcing bar 1 is formed on the concrete surface 12.
13 is bored, and the differential line A is inserted in the mounting hole 13 as shown in FIG.
4 is inserted and the base end is pressed, the tip of the wedge member 3 punches out the constricted concave portion 5 of the locking member 2 and the locking member 2 is divided into two at the substantially central portion, as shown in FIG. 4B. After being cut, the respective locking members 2 project laterally from the through holes 11 and the locking members 2 are held in a state where the locking members 2 are difficult to dig into the concrete surface 12, and the braces A are fixed.

As described above, according to the differential braces A of this embodiment,
The locking member 2 is inserted into the through hole 11 of the differential line 1, the wedge member 3 is inserted into the holding hole 10, and the tapered portion 9 of the wedge member 3 is inserted.
Since it can be assembled by fitting it into the constricted recess 5 of the locking member 2, it can be carried out easily by hand and can be made inexpensive.

Further, according to the differential braid A of this embodiment, the locking member 2 is inserted into the through hole 11 of the differential bar 1 and the holding hole is provided.
By inserting the wedge member 3 into 10 and fitting the tapered portion 9 of the wedge member 3 into the constricted recess 5 of the locking member 2 to assemble, the wedge member 3 and the locking member 2 are completely incorporated in the differential line 1. Therefore, the size of the mounting hole 13 formed in the concrete surface 12 can be set to the minimum size, and therefore the work of driving the braces A can be performed without time and labor. .

Further, when the proximal end of the braces A is folded, the tip end of the wedge member 3 punches out the constricted recess 5 of the locking member 2 as shown in FIGS. 4 (b) and 3 (b). The locking member 2 is cut into two at the substantially central portion, and each locking member 2 has a through hole.
Since the locking member 2 is laterally protruded from the side 11 substantially perpendicularly to the concrete 12 and the locking member 2 is held in a state in which the concrete 12 is hard to be depressed, the braces A are firmly fixed to the concrete surface 12.

In addition, in the above-mentioned differential braces A, one through hole 11 is provided at the tip of the differential bar 1, but a plurality of through holes are spaced apart and arranged in parallel or orthogonally, It is also possible to position the locking member in each through hole.

Further, in the above-mentioned differential braces A, FIG.
As shown in FIG. 3, a metal locking rod 4 is cut out from the locking member 2, and a triangular groove is formed in a substantially central portion as a constricted concave portion 5, and both ends are sharpened and the tip is slightly cut. Although the contact member 6 has a shape having the contact portion 6, various other shapes of the locking member 2 can be devised. For example,
The locking member 2 of FIG. 5 (b) is one in which both ends of the locking rod 4 are sharpened, and the locking member 2 of FIG. 5 (c) is the locking rod 4.
5 (d) has a flat surface without any sharpened ends, and the locking member 2 of FIG. 5 (d) has both ends of the locking rod 4 having a large number of saw teeth around or entirely. The locking member 2 of FIG.
A trapezoidal groove is circumferentially provided as a constricted recess 5 in the substantially central portion of the. The locking member 2 is, of course, the locking rod 4
It is easier to dig into the concrete 12 by sharpening both ends of the.

Further, in the above-mentioned differential braces A, the locking member 2
Although the constricted recess 5 is provided around the entire circumference of the locking rod 4 in FIG. 1, it is not necessary to provide it around the entire circumference, and if it can be cut by pushing the wedge member 3, the constricted recess 5 can be formed in a part of the locking rod 4. May be provided.
However, if the constricted recessed portion 5 is provided over the entire circumference of the locking rod 4, the locking member 2 can be easily cut.

In addition, in the above-mentioned example, the reinforcing bar A which is driven into the concrete surface 12 has been described, but not limited to concrete, it may be driven into wood, stone or rubber.

Next, the anchor B using the principle of the above-described braces A will be described. As shown in FIG. 6, the anchor B is provided with a holding hole 10 penetrating the sleeve 14 in the axial direction, and a through hole 11 is bored in the radial direction so as to be orthogonal to the holding hole 10 to form a base end. The screw hole 15 is provided on the inner surface of the holding hole 10 of the portion, and the locking member 2 and the wedge member 3 described above are used to insert the locking member 2 into the through hole 11 and the wedge member 3 to the holding hole 10. It is assembled by inserting the tapered portion 9 of the wedge member 3 into the constricted concave portion 5 of the locking member 2 after insertion.

According to the anchor B of this embodiment, a bottomed mounting hole 13 having a diameter slightly larger than the outer diameter of the sleeve 14 of the anchor B is formed in the concrete surface 12, and the mounting hole 13 is formed as shown in FIG.
When the tip end of the anchor B is inserted into the inside of 13 and the base end of the anchor B is folded, the tip end of the wedge member 3 punches out the concavity concave portion 5 of the engaging member 2 and two engaging members 2 are formed at the substantially central portion. The anchor B is cut into pieces, the respective locking members 2 project laterally from the through holes 11 and the locking members 2 are held in a state where the locking members 2 are hard to be filled with the concrete 12, and the anchor B is fixed.
A bolt 16 or the like can be screwed into the screw hole 15 of 14.

As described above, according to the anchor B of this embodiment, the locking member 2 is inserted into the through hole 11 of the sleeve 14, the wedge member 3 is inserted into the holding hole 10, and the tapered portion 9 of the wedge member 3 is inserted. Since it can be assembled by fitting it into the constricted recess 5 of the locking member 2, it can be carried out easily by hand and can be made inexpensive.

Further, when the base end of the anchor B is folded,
The tip end of the wedge member 3 punches out the constricted recess 5 of the locking member 2 to cut the locking member 2 into two at the substantially central portion, and each locking member 2 laterally extends from the through hole 11 to the concrete 12. The anchor B is firmly fixed to the concrete surface 12 because the locking member 2 is held in a state in which the concrete 12 is hard to dent into the concrete surface 12.

[0030]

Since the present invention is configured as described above, it has the following effects. According to another aspect of the present invention, there is provided an anchor member having an anchor, wherein a locking member is inserted into a through hole of the differential muscle, a wedge member is inserted into a holding hole, and a tip end portion of the wedge member is a constricted recess of the engaging member. Since it can be assembled by inserting it into the housing, it can be done easily by hand, and it can be made inexpensive in price. The wedge member and the locking member can be completely assembled in the differential line by inserting the wedge member into the and inserting the tip end portion of the wedge member into the constricted concave portion of the locking member to assemble it. Since the size of the mounting hole to be installed can be set to the minimum size, it is possible to perform the work of driving the braces without the need for time and effort, and further, to tap the proximal end of the braces. When sunk, the tip of the wedge member punches through the constricted recess of the locking member. Since the locking member is cut in two at the substantially central portion and each locking member projects laterally from the through hole substantially perpendicular to the concrete, the locking member is held in a state in which the concrete surface is difficult to dent. , The braces are firmly fixed to the concrete surface.

According to the anchor of the fourth aspect, the locking member is inserted into the through hole of the sleeve, the wedge member is inserted into the holding hole, and the tip end portion of the wedge member is fitted into the constricted recess of the locking member. Since it can be assembled, it can be done easily by hand, so it can be made inexpensive, and when the proximal end of the anchor is folded, the tip of the wedge member will The concavity is punched out and the locking member is cut in two at approximately the center, and each locking member projects laterally from the through hole substantially perpendicular to the concrete, making the locking member difficult to squeeze into concrete. Since it is retained, the anchor is firmly fixed to the concrete surface.

According to the braces provided with the anchor of claim 2 and the anchor of claim 5, since the constricted recess of the locking member is provided around the surface of the locking rod, the tip of the wedge member is locked. The constricted recess of the member can be easily punched and cut.

According to the braces provided with the anchor of the third aspect and the anchor of the sixth aspect, since both ends of the locking member are sharpened, the cut locking member projects laterally from the through hole. , Easy to be dented and held on concrete surface.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a main part of a bracing instrument including an anchor according to a representative embodiment of the present invention.

FIG. 2 is a side view of a locking member and a wedge member.

FIG. 3 (a) is a perspective view showing a main part of a differential muscular device having an anchor. FIG. 3 (b) is a perspective view of a main part in a state where a differential muscular device having an anchor is driven.

FIG. 4 (a) is an explanatory cross-sectional view showing the movement of a differential muscular device including an anchor. (B) An explanatory cross-sectional view showing the movement of a differential muscular device including an anchor.

FIG. 5 is a side view of a wedge member according to another embodiment.

FIG. 6 is an explanatory sectional view showing a usage state of an anchor of a representative embodiment.

FIG. 7 is an explanatory sectional view showing a main part of a conventional differential muscle anchor.

FIG. 8 is an explanatory cross-sectional view showing a usage state of a conventional differential muscle anchor.

[Explanation of symbols]

A Reinforcing bar tool B Anchoring 1 Retracting bar 2 Locking member 3 Wedge member 4 Locking rod 5 Constriction concave part 6 Abutting part 7 Collar part 8 Shaft part 9 Taper part 10 Holding hole 11 Through hole 12 Concrete surface 13 Mounting hole 14 Sleeve 15 Screw hole 16 bolt

Claims (6)

[Claims] 1. A locking member having a constricted recess provided at a substantially central portion of a locking rod, a wedge member having a sharpened tip so as to be located in the constricted recess of the locking member, and a locking member having a predetermined length. A bottomed holding hole into which the wedge member is inserted is bored in the axial direction of the distal end face of the differential bar, and the through hole is formed to insert the locking member in the radial direction of the differential bar so as to be orthogonal to the holding hole. A differential muscle tool having an anchor consisting of a differential muscle having a hole. 2. The braces provided with the anchor according to claim 1, wherein the constricted recess of the locking member is provided around the surface of the locking rod. 3. A differential muscle instrument comprising the anchor according to claim 1, wherein both ends of the locking member are sharpened. 4. A locking member having a constricted recess at a substantially central portion of the locking rod, a wedge member having a sharpened tip so as to be located in the constricted recess of the locking member, and the wedge member. A holding hole into which the bolt and the like can be inserted from the other end is bored in the axial direction, and a through hole for inserting the locking member in the radial direction of the differential line is formed so as to be orthogonal to the holding hole. Anchor consisting of perforated sleeve and. 5. The anchor according to claim 4, wherein the constricted recess of the locking member is provided around the surface of the locking rod. 6. The anchor according to claim 4, wherein both ends of the locking member are sharpened.