JP3069845U - Anchor body - Google Patents

Abstract

(57) [Abstract] [Problem] Even if there is aged deterioration or vibration of the main body by pushing and bending a driving pin driven into a through hole in an outer cylinder,
Provided is an anchor body that can prevent a driving pin from coming off and can securely fix an outer cylindrical body to a main body. An outer cylinder (1) is provided in a mounting hole (5) formed in a body (b).
, And a driving pin 3 is inserted into the through hole 2 in the outer cylinder 1 and driven into the outer cylinder 1, and a slit 4 provided on the other side of the outer cylinder 1 is expanded outward to open the outer cylinder 1. In the anchor body A for fixing the outer cylinder 1 to the main body b, the slit 4 is formed so as to be biased toward one side in the outer peripheral direction in the axial direction of the outer cylinder 1.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to an anchor used for assembling or connecting articles.

[0002]

[Prior art]

 Conventionally, when another member is fixed to a hard portion such as concrete, for example, as shown in FIG. 11A, a hole 51 is formed in the hard portion 50, and an attaching hole 53 of the other member 52 is formed. The anchor 54 is inserted through the hole 51 into the hole 51.

As shown in FIG. 11B, when a pin 56 is driven into a center hole 55 of the anchor 54, a cross-shaped slit 57 provided at the outer end of the anchor 54 is pushed outward and opened. Then, the anchor 54 is fixed to the hard portion 50 so as to bite into the inner wall of the hole 51.

Next, when the nut 58 screwed to the front end of the anchor 54 is tightened, the other member 52 is fixed to the hard portion 50.

However, when the hard portion 50 such as concrete deteriorates with time or receives vibration such as an earthquake, the anchor 56 formed by the above-described method loosens the pin 56 that is driven into the center hole 55. As a result, the anchor 54 may lose its fixation to the hard portion 50, and may be detached from the hole 51.

[0006]

[Problems to be solved by the invention]

 The present invention has been made in order to solve the above-mentioned problem. An outer cylinder is attached to a mounting hole formed in a main body, and a driving pin is inserted into a through hole in the outer cylinder. In the anchor body for fixing the outer cylinder to the main body by expanding the split provided on the other side of the outer cylinder to the outside, and fixing the split to the axial direction of the outer cylinder. In this case, by biasing the driving pin toward one side in the outer peripheral direction, the driving pin that is driven into the through hole in the outer cylinder is pushed and bent, and even if there is aging deterioration or vibration of the body, the driving pin An object of the present invention is to provide an anchor body that can prevent slipping out and can securely fix an outer cylinder body to a main body.

[0007]

[Means for Solving the Problems]

 Means of the present invention for achieving the above-mentioned object are: an outer cylindrical body attached to a mounting hole drilled in the main body side; and an outer cylindrical body provided from one end to the middle of the outer cylindrical body. An anchor body having a through hole, a driving pin inserted into the through hole, and a split provided on the other side of the outer cylindrical body and expanding outward by driving of the driving pin. The slit is provided continuously from the bottom of the through hole to the other end of the outer cylinder, and is formed so as to be biased to one side outward in the axial direction of the outer cylinder. In the composition of the body.

[0008] Further, an outer cylindrical body attached to a mounting hole formed in the main body side, a through hole provided from one end to a middle of the outer cylindrical body in the outer cylindrical body, An anchor body provided with a driving pin to be inserted, and a split provided on the other side of the outer cylinder and expanding outward by driving of the driving pin, wherein the other side of the outer cylinder is provided. Is in the configuration of the anchor body cut off at an angle.

Further, an outer cylindrical body attached to a mounting hole formed in the main body side, a through hole provided from one end to a middle of the outer cylindrical body in the outer cylindrical body, An anchor body having a driving pin to be inserted and a split provided on the other side of the outer cylinder and expanding outward by driving of the driving pin, wherein the split is provided diagonally. In the configuration of the anchor body.

[0010] An outer cylinder is mounted in a mounting hole formed in the main body, and a driving pin is inserted into the through-hole in the outer cylinder to drive the outer cylinder into the other side of the outer cylinder. In a method for fixing an anchor body for expanding a cut-out outward and fixing the outer cylinder to a main body, the cut is formed so as to be deviated to one side in an outer peripheral direction in a cross-sectional direction of the outer cylinder. Wherein the driving pin is bent at the time of driving the driving pin along the deviation of the slit, and the driving pin is decentered from the axis of the through hole. is there.

Further, an outer cylindrical body to be mounted in a mounting hole formed in the main body, a through-hole provided from one end to a middle of the outer cylindrical body in the outer cylindrical body, and a through-hole inserted into the through-hole. An anchor body provided with a driving pin, which is provided on the other side of the outer cylindrical body, and which is opened outward by driving the driving pin. It is in the configuration of the anchor body provided diagonally to the axial direction.

[0012]

【Example】

 Next, an embodiment of the anchor according to the present invention will be described with reference to the drawings. In FIGS. 1, 3 to 5, 8 (a), 9 (a), and 10, A denotes an anchor according to an embodiment of the present invention. Floor An appropriate mounting member c is fixed to a main body b such as a structural member made of a relatively soft member such as the ground or wood, and an outer cylinder 1, a through hole 2, a driving pin 3, a slit 4, and the like. It is basically composed of

The outer cylinder 1 is mounted in a mounting hole 5 drilled in the body b, and has a substantially circular cross section made of a hard metal or the like.

The through hole 2 is provided from one end in the outer cylinder 1, that is, from the end located on the surface side of the main body b, to a point in the axial direction of the outer cylinder 1. Accordingly, the bottom 2a of the through hole 2 is formed in a downward funnel shape so that when the driving pin 3 described later comes into contact with the bottom, a good expanding action is performed.

The aforementioned driving pin 3 is inserted into the through hole 2 of the outer cylinder 1, and is driven into the notch 4 provided on the other side of the outer cylinder 1 by driving the driving pin 3 into the outer cylinder 1. The other side part is expanded outward, and the other end part 3b having a head part 3a at one end is formed in a sharp shape or the like corresponding to the bottom part 2a of the through hole 2.

The above-mentioned slit 4 expands outward by driving of the driving pin 3, contacts the inner wall of the mounting hole 5 of the outer cylinder 1, and fixes the outer cylinder 1 to the main body b. As shown in FIGS. 2 (a) and 2 (c), the outer cylinder 1 is provided so as to be deviated outward from the axial direction pp of the outer cylinder 1 so as to be parallel to the axial direction pp. As shown in FIGS. 2 (b) and 2 (d), the outer cylindrical body 1 is formed so as to be deviated outward from the axial direction pp of the cylindrical body 1 so as to be inclined outward from the axial direction pp. I do. In addition, the cuts 4 are provided in a plurality (a plurality of places) of two or more. Further, in order to improve the engaging force when engaging with the inner wall of the mounting hole 5 in the main body 1, an uneven body 12 is engraved on the outer cylindrical body 1 corresponding to the slit 4.

A male screw 7 with which a fastening nut 6 is screwed is screwed at one end of the outer cylinder 1, and the tightening of the nut 6 and the male screw 7 causes the mounting member c to be attached to the main body b. Fixed to.

As another example, as shown in FIG. 5A, the means for fixing the mounting member c to the main body b may be pressed by the head 3a of the driving pin 3 into which the surface of the mounting member c is driven. As shown in FIG. 5B, by pushing the head 3a of the driving pin 3 into one end 8 of the outer cylinder 1, the one end 8 of the outer cylinder 1 is inserted into the mounting hole 9 of the mounting member c. It is done by biting.

Further, as shown in FIG. 5A, the present invention can also be used for an anchor body A for a grip anchor.

Therefore, the anchor body A and the method for fixing the anchor body according to the embodiment of the present invention configured as described above have the following effects. As shown in FIGS. 3 and 4, a mounting hole 5 having an inner diameter into which the outer cylinder 1 can be inserted into a main body b to which the mounting member b is mounted is drilled.

Then, the nut 6 is screwed into the external thread 7 of the outer cylinder 1, and the outer cylinder 1 is axially positioned with respect to the mounting hole 10. After passing through the outer cylinder 1, it is inserted into the mounting hole 5. When the driving pin 3 is inserted into the through hole 2 of the outer cylindrical body 1 and the head 3a of the driving pin 3 is driven with a hammer or the like, the tip 3b of the driving pin 3 becomes the bottom 2a of the through hole 2. Abut.

When the head 3 a of the driving pin 3 is further driven, the tip 3 b of the driving pin 3 enters the cutting 4 along the cutting 4 formed on the other side of the outer cylinder 1. Try to. At this time, since the slit 4 is formed so as to be deviated laterally with respect to the axial direction, the thin side slit 4 spreads first due to the penetration of the distal end portion 3b of the driving pin 3, and the thin side 4 When the notch 4 comes into contact with the inner wall of the mounting hole 5, the thicker cut 4 expands, and each of the notches 4 comes into contact with the inner wall of the mounting hole 5.

Further, when the driving pin 3 is pushed in, a force acts to push and bend the thin-side cut 4 while sliding the thick-side cut 4 with the thick-side cut 4 as a guide. At the same time, the intermediate portion or the distal end portion 3b of the driving pin 3 is bent toward the thin slit 4 as shown in FIG.

Thus, the outer cylinder 1 is fixed to the mounting hole 5 of the main body b, and the nut 6 screwed to the male screw 7 at one end of the outer cylinder 1 is tightened. The mounting member c is fixed to the main body b.

[0025] Even if the main body b of concrete or the like deteriorates with time or receives vibration such as an earthquake, the driving pin 3 moves the anchor body A with respect to the axial direction pp. As shown in FIG. 4, since the bent portion is bent outward by the dimension X, the bent portion engages with the notch 4 in the outer cylindrical body 1 to prevent the driving pin 3 from coming out. The mounting failure of c does not occur.

As shown in FIG. 2A, the slit 4 biased to the outer cylinder 1 can be biased so as to be parallel to the axial direction pp as shown in FIG. The same effect can be obtained with a bias that is inclined outward from the axial direction pp. However, by providing an inclined bias as shown in FIG. Push bending of the pin 3 on the side of the thin slit 4 is smoothly performed.

Further, as shown in FIG. 6, the cuts 4 provided at the plurality of positions may be changed in the cut depth, so that the driving pin 3 can be easily driven and The intermediate portion or the tip 3b of the driving pin 3 can be easily bent.

Further, as shown in FIG. 7A, the driving pin 3 is formed by cutting the intermediate portion or the tip portion 3b obliquely in one direction, as shown in FIG. 7B, the tip 3b of the driving pin 3 bent by driving pierces the main body 1 of wood or the like as shown by the phantom line in FIG. Therefore, the driving pin 3 is further prevented from coming off.

As shown in FIG. 7B, the driving pin 3 is provided with an uneven locking portion 11 at a position where the driving pin 3 engages with the slit 4. The engagement force with the slit 4 is improved by the biting, and the driving pin 3 is further prevented from coming off.

FIG. 8A shows another embodiment of the anchor body according to the present invention. In this embodiment, the main structure is such that the end portion 13 on the other side of the outer cylinder 1 is It is a point that was cut diagonally. In the example shown in FIGS. 8A and 8B, the cut 4 provided on the other side of the outer cylinder 1 is not necessarily biased to one side outward in the cross section of the outer cylinder 1. When the driving pin 3 is driven from the state shown in FIG. 8A, the smaller the depth of the slit 4 is, the more the bit is cut into the main body 1 and the smaller the depth of the cut 4 is. The driving pin 3 penetrates into the slit 4 by using the slit 4 on the other side with the shorter depth as a sliding guide, so that the intermediate portion or the tip 3b of the driving pin 3 bends toward the shorter depth of the slit 4. . Therefore, it is possible to prevent the driving pin 3 from coming out after the anchor body A is installed.

8 (c) and (d), the end 13 of the other side of the outer cylinder 1 is obliquely cut off and the other side of the outer cylinder 1 is cut off. The slit 4 provided in the portion is formed so as to be deviated to one side outward in the cross section of the outer cylindrical body 1, and in combination with the operation and effect of the first example described above, the intermediate portion or the tip of the driving pin 3 The bending of the portion 3b is further improved.

The anchor body A shown in FIG. 9 shows an example in which the slit 4 is formed obliquely. As shown in FIG. By providing the outer cylindrical body 1 on the F1 side, the outer cylindrical body 1 on the F1 side becomes thinner than the outer cylindrical body 1 on the F2 side. Therefore, as shown in FIG. The intermediate portion or the distal end portion 3b of the third member 3 is bent, so that the driving pin 3 can be prevented from coming off after the anchor body A is installed.

The cut 4 in this example is provided at the center of the outer cylinder 1 in the axial direction as shown in FIG. 9B, or as shown in FIG. It may be offset to one side in the axial direction.

An anchor body A shown in FIG. 10 shows an example in which the through-hole 2 provided in the outer cylinder 1 is provided obliquely with respect to the axial direction of the outer cylinder 1. Since the cylindrical body 1 is thinner than the outer cylindrical body 1 on the x side, when the driving pin 3 is driven, the intermediate portion or the distal end 3b of the driving pin 3 is bent using the outer cylindrical body 1 on the x side as a guide, It is possible to prevent the driving pin 3 from coming off after the anchor body A is installed.

[0035]

[Effect of the invention]

 In the anchor body of the present invention configured as described above, the cut is formed so as to be deviated to one side outward in the cross section of the outer cylinder, or the end of the other side of the outer cylinder is formed. The driving pin is bent obliquely, for example, so that the driving pin is bent outwardly with respect to the axial direction of the driving pin. The driving pin does not come off even if it deteriorates over time or is subjected to vibrations such as an earthquake, which prevents the mounting member from being improperly mounted on the main body. is there.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of an anchor body according to the present invention.

FIGS. 2A and 2B show examples of cuts provided on the outer cylindrical body in FIG. 1, wherein FIG. 2A is a cross-sectional view of a main part, and FIG.
, (C) is a cross-sectional view of a main part showing another example of the cutting, and (d) is a bottom view in (c).

FIG. 3 is a sectional view showing a state before fixing an anchor body in FIG. 1;

FIG. 4 is a sectional view showing a state after the anchor body in FIG. 1 is fixed.

FIG. 5 is a partially cutaway explanatory view showing other examples of the anchor body in FIG. 1;

FIG. 6 is a sectional view of a main part showing another example of the splitting of the outer cylinder in FIG.

FIGS. 7A and 7B show another example of the driving pin in FIG. 1; FIG. 7A is an explanatory view showing a tip end thereof; FIG. is there.

FIG. 8 is a sectional view of a main part showing another embodiment of the anchor body according to the present invention.

9A and 9B show still another example of the cutting of the outer cylinder body in FIG. 1, wherein FIG. 9A is an explanatory view showing a driving state, FIG. 9B is a plan view of the cutting, and FIG. FIG. 14 is a plan view showing another example of FIG.

FIG. 10 is a partially cutaway explanatory view showing another example of the through hole in the anchor body in FIG. 1;

FIG. 11 is a cross-sectional view showing a mounting state of a conventional anchor.

[Explanation of symbols]

 A anchor body b main body 1 outer cylinder 2 through hole 3 driving pin 4 split 13 end

Claims (4)

[Utility model registration claims] 1. An outer cylindrical body mounted in a mounting hole formed in a main body, a through hole provided from one end to a middle of the outer cylindrical body in the outer cylindrical body, and inserted into the through hole. A driving pin provided on the other side of the outer cylindrical body, and a split that expands outward by driving the driving pin, wherein the split is formed from the bottom of the through hole. An anchor body provided continuously over the other end of the outer cylindrical body and formed so as to be deviated to one side outward in the axial direction of the outer cylindrical body. 2. An outer cylinder mounted in a mounting hole formed in the body, a through-hole provided from one end to a middle of the outer cylinder in the outer cylinder, and inserted into the through-hole. Body provided with a driving pin and a split provided on the other side of the outer cylinder and expanding outward by driving of the driving pin, wherein an end of the other side of the outer cylinder is provided. Is an anchor body characterized by being cut diagonally. 3. An outer cylindrical body to be mounted in a mounting hole formed in the main body, a through hole provided from one end to a middle of the outer cylindrical body in the outer cylindrical body, and inserted into the through hole. An anchor body provided with a driving pin which is provided on the other side of the outer cylindrical body and which is opened outward by driving the driving pin, wherein the cut is provided obliquely. And the anchor body. 4. An outer cylindrical body mounted in a mounting hole formed in the main body, a through hole provided from one end to a middle of the outer cylindrical body in the outer cylindrical body, and inserted into the through hole. Wherein the through-hole is a shaft of the outer cylindrical body, wherein the anchor has a driving pin provided on the other side of the outer cylindrical body and a cutout which is opened outward by driving the driving pin. An anchor body characterized by being provided at an angle to the direction of the center.