JPH0211539Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a board anchor.

Various board anchors have been known in the past, but they have the disadvantage that they can slip out if used on board members that are soft and have low strength. There are many disadvantages such as the disadvantage that the diameter of the screw rod is limited and the installation strength is also limited, the disadvantage of high cost, the disadvantage of a complicated structure, and the disadvantage of poor installation workability. It had drawbacks.

The present invention overcomes these drawbacks of the conventional methods and enables highly efficient installation work on plate members such as building walls and boards.Moreover, it can be used even with large-diameter threaded rods, and the above-mentioned plate members can be attached strongly. It is an object of the present invention to provide a screw rod capable of holding a screw rod, and to significantly increase the weight that can be supported than before when, for example, it is desired to support a heavy object on the screw rod.

Hereinafter, the present invention will be explained in detail based on the illustrated embodiments.

In the plan view of Fig. 1, the front view of Fig. 2, and the cross-sectional right side view of Fig. 3, 1 is a contact member in the shape of a pipe material of a predetermined length divided in half in the vertical direction; a string-like body whose ends 3, 3 are connected to the abutting member 1;
4 is a ring body.

In FIGS. 4 to 7, which sequentially show the installation work, and FIGS. 1 to 3, the abutment member 1 has a screw hole 5 in the center thereof, and has screw holes on both sides in the longitudinal direction of the screw hole 5. A small hole is formed through the hole, and the ends 3, 3 of the plastic string-like body 2 are inserted into the hole, and then heat is applied to swell it and fix it. Alternatively, as shown in the enlarged cross-sectional view of FIG. 2
The end portion 3 of is fixed by heat fusion, adhesion, welding, etc.
The string-like body 2 has a U-shape as a whole and has a loop at its free end. Reference numeral 10 denotes a plate member forming a wall surface of a building, etc. First, a through hole 11 is formed in the plate member 10 using a drill or the like, and then the contact member 1 is inserted by holding it by hand as shown in FIG. . The contact member 1 inserted into the back surface 12 side of the plate member 10 is about to fall. However, as shown in FIG. 5, by hooking your finger onto the loop-shaped string-like body 2 and pulling it, you can prevent it from falling.

It is preferable that the ring body 4 is also made of plastic, but its shape is different from that of the short cylindrical part 1.
3 and an outer flange 14 continuous to one end surface thereof. The short cylindrical portion 13 has a circular outer periphery and an elliptical inner periphery, and the wall thickness changes.
A pair of small holes 15, 15 through which the string-like body 2 is inserted with a predetermined frictional resistance are provided in a direction parallel to the axis. Then, as shown in FIG. 5, when holding the ring body 4 with the other hand and hooking the looped end of the string body 2 in the direction of arrow A, As shown in FIG. The peripheral edge contacts the front surface 18 of the plate member 10.

The above-mentioned predetermined frictional resistance means that in the state shown in FIG. 6, the hand is released from the string-like body 2, and the tip of the male threaded rod 17 is lightly screwed into the screw hole 5 through the oval hole 16 of the ring body 4. In some cases, the frictional resistance is greater than the level at which the abutting member 1 does not escape to the back side and become misaligned.

In this way, after the tip of the male threaded rod 17 is lightly screwed onto the abutment member 1, the string-like body 2 is cut near the ring body 4 using scissors or a knife (not shown). Then, by screwing the male threaded rod 17 to the final screwed-in position, the attached state shown in FIG. 7 can be obtained.

In the illustrated example, the male threaded rod 17 indicates the threaded part of a bolt or screw, and the L-shaped or J-shaped hook body 19
The case where the is attached to the plate member 10 is shown. Of course, in addition to this, the male threaded rod 17 may be integrated with the hook body, and the hook body 19 may be replaced by various types of attachments.

As mentioned above, the ring body 4 acts like a washer when it is installed. Incidentally, it is preferable to perform the cutting operation of the string-like body 2 after the attachment state shown in FIG.
There is an advantage that the screwing operation of the male threaded rod 17 becomes possible. Also, depending on the installation location, the string-like body 2 may be left uncut (wall surface of a warehouse or factory).
There is also.

Next, it is preferable to form the abutting member 1 into a rectangular plate piece as illustrated in FIG. 8, or it may have a channel-shaped cross section as illustrated in FIG. 9. Note that 20 bites into the back surface 12 when it comes into contact with the back surface 12, thereby making it possible to screw the male threaded rod 17 more reliably.

Note that the string-like body 2 may be made of rubber string, metal or fiber, and the ring body 4 may be made of metal, but the string-like body 2 It is important to provide a predetermined sliding frictional resistance to each other when inserted through the small holes 15, 15.

If the tip 1a of the abutting member 11 is formed into a tapered shape as in another embodiment shown in FIG. It has the advantage that it can be fed to the back side.

As described above, the present invention includes a contact member 1 which has a screw hole 5 and comes into contact with the back surface 12 of a plate member 10 in an attached state, and a contact member 1 that is inserted into the through hole 11 of the plate member 10. a string-like body 2 connected to the corresponding contact member 1 for pulling the corresponding contact member 1 to prevent it from falling when the contact member 1 is moved; a small hole 15 through which the string-like member 2 is inserted with a predetermined frictional resistance; 15, and a ring body 4 having a hole 16 in the center through which a male threaded rod 17 is inserted, and further abutting against the front surface 18 of the plate member 10 in the above-mentioned installed state. Therefore, as described above, the installation work can be carried out with high efficiency in an extremely simple work order, and there is no fear that the abutment member 1 will fall onto the back surface 12 of the plate member 10 due to the string-like body 2. The tip of the male threaded rod 17 and the screw hole 5 of the contact member 1 can be easily and reliably matched, and the screwing operation can be performed quickly. In addition, the structure allows the abutment member 1 to be made sufficiently large, and the screw hole 5 is made large in diameter and the male threaded rod 17 is also made large in diameter, so that a suspended object or an attached object (not shown) can be made large. It has sufficient mounting strength to withstand even heavy objects.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a front view, FIG. 3 is a cross-sectional view taken along the line C-C in FIG. 1, FIGS. A perspective view of the main part of another embodiment, FIG. 10 is an enlarged sectional view of the main part,
FIG. 11 is a perspective view of essential parts of another embodiment. DESCRIPTION OF SYMBOLS 1... Contact member, 2... String-like body, 4... Ring body, 5... Screw hole, 10... Plate member, 11... Through hole, 12... Back surface, 15... Small hole, 16 ...Hole, 17...Male screw rod, 18...Front surface.

Claims (1)

[Scope of utility model registration request] The abutting member 1 has a screw hole 5 and comes into contact with the back surface 12 of the plate member 10 in an attached state, and when the abutting member 1 is inserted into the through hole 11 of the plate member 10, the corresponding abutting member 1 falls. A string-like body 2 connected to the corresponding contact member 1 for tension to prevent the above-mentioned, and small holes 15, 15 through which the string-like body 2 is inserted with a predetermined frictional resistance.
The plate member 1 has a hole 16 in the center through which the male threaded rod 17 is inserted.
A ring body 4 that comes into contact with the front surface 18 of the board anchor.