JPH1151030A - Bolt locking structure and piping support metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure easy mounting and demounting of metal fittings by bringing a bolt into a locked state for preventing its slipping off by the aid of at least two locking protrusions in a threaded groove of the bolt locked. SOLUTION: In piping support metal fittings comprising a mounting member 9 furnished with a hanged bolt screwed part 8, holding half bodies 5, 6 whose upper part are superposedly set, a bolt B insertion screwed to the superposed part for closewise holding the bodies 5, 6, the superposed portion of the mounting part serves as a mounting part 1, a bolt locking structure is provided in a bolt insertion hole 2. According to this constitution, even if the other half body 6 is made open with the screw connection of the locking bolt B with the screw hole 10 formed in the half body 6 being disconnected, the self weights of the bodies 5, 6 are applied to the bolt B, thereby allowing the locking protrusions to engage with the inside of the threaded groove 4 for preventing slipping off of the bolt B unless it is raised by hand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt locking structure and a pipe support.

[0002]

2. Description of the Related Art For example, there are various types of pipe support fittings, and a support fitting for supporting a pipe via a suspension bolt generally connects the bottoms of a pair of holding halves to each other, thereby forming a polymer. A nut is screwed or a burring hole or a nut is screwed into a welded screw hole through a connection bolt on the upper part of each holding half to be arranged, and the holding half is closed and held to hold the piping. A configuration is such that a lower portion of a screw fitting (attachment member) that is screwed to a suspension bolt is fixed between the upper portion of the holding half by the connection bolt.

Therefore, in the operation of attaching and detaching the pipe support bracket, the nut is removed from the connecting bolt passing through one upper portion of the holding half, or the connecting bolt is turned to remove the nut from the screw hole to hold the pipe supporting bracket. Open the other half of the half outward and rotate (open) to install and remove.

[0004]

However, the insertion hole of the connecting bolt is formed so large that the holding half can be smoothly rotated and opened and the piping position can be slightly shifted. If the front end of the connecting bolt is unscrewed, the bolt may fall out of the insertion hole and fall.

Further, when the bolt comes off, the holding half and the hanging bolt screw fitting are disconnected, and the holding half also comes off.

For this reason, the bolts must be held down by hand so that the bolts do not come off during the attaching and detaching work, and the workability is poor.

[0007] Such a problem is a common problem not only in a pipe support fitting but also in a fitting connected by bolts.

The present invention finds such a problem, prevents the bolt from being loosened by a simple structure, can surely solve the problem, and can easily and quickly mount and remove the metal fittings. It is an object of the present invention to provide an innovative bolt locking structure and a pipe support fitting.

[0009]

The gist of the present invention will be described with reference to the accompanying drawings.

[0010] A plurality of locking projections 3 are provided at predetermined intervals on the edge of the insertion hole 2 provided in the plate-shaped mounting portion 1, and at least a screw groove 4 of the bolt B inserted into the insertion hole 2 is provided. The present invention relates to a bolt locking structure, wherein the two locking projections 3 are locked so that the bolt B is prevented from coming off from the insertion hole 2 and locked.

The locking projections 3 are provided on the left and right below the hole edge of the insertion hole 2, and the left and right locking projections 3 are locked into the screw groove 4 from the left and right. The bolt locking structure according to claim 1, wherein the bolt (B) is configured to be locked from the insertion hole (2).

Further, the two locking projections 3 are inserted into the insertion holes 2.
3. The bolt locking structure according to claim 2, wherein an angle (center angle) between the center of the bolt and the center is in a range of 40 to 120 degrees, and an opposing interval is set to be smaller than a bolt diameter. It is related.

[0013] Further, the locking projection 3 is formed when the insertion hole 2 is formed, and is integrally protruded from the edge of the hole toward the inside of the hole. The present invention relates to the bolt locking structure described in the paragraph.

A holding half 5 for holding and supporting the pipe A is also provided.
6 is pivotally connected to the lower part of the body 6 so as to be freely opened and closed.
At least one of the clamping halves of a pipe support fitting which is configured so that a bolt B is screwed on the upper part of 6 and closed and held, and a hanging bolt screwing part 8 screwed on the hanging bolt 7 is provided on the upper part. 5. An upper part of the fifth member is the mounting part 1.
A pipe support fitting provided with the bolt locking structure according to any one of the above items.

A holding half 5 for holding and supporting the pipe A 5.
6 is pivotably connected to the lower part of the mounting member 9 and has a mounting member 9 provided with the hanging bolt threaded part 8 on the upper part and the holding half body 5.
6, a bolt is inserted and screwed into the overlapped portion so that the clamping halves 5, 6 are closed and held.
A bolt supporting structure according to any one of claims 1 to 4, wherein the overlapped portion is provided as the mounting portion 1 according to the present invention.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

When the bolt B is inserted through the insertion hole 2 provided in the plate-shaped mounting portion 1 so as to avoid the locking projection 3, the bolt B
Due to its own weight and the load applied to the bolt B, the plurality of locking projections 3 are engaged in the screw groove 4 of the bolt B, and the bolt B cannot be removed unless it is slightly lifted or tilted.

Therefore, for example, if a predetermined load is applied to the bolt B even if the screw connection of the bolt B is removed, the bolt B
Will not come off or metal fittings will not fall apart.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

In the present embodiment, when the substantially circular insertion hole 2 is punched and formed in the plate-shaped mounting portion 1, the locking projection 3 is formed and is integrally provided from the edge of the hole toward the inside of the hole. ing. Of course, the forming method is not limited to this, and a small piece may be welded to the edge of the hole. However, in this embodiment, a punching method is adopted in consideration of strength, durability, or mass productivity.

Further, in this embodiment, a striking process or a press process is further performed so that the portion protruding from the hole edge is locked in the screw groove 4 of the bolt B so as to obtain a strong and proper thickness. Processing.

In the present embodiment, the locking projections 3 having a predetermined projection length formed in this manner are provided on the left and right sides below the hole edge of the insertion hole 2, and the left and right locking projections 3 on the lower side of the hole edge are formed as described above. The bolt B is locked in the screw groove 4 from the left and right, so that the bolt B is prevented from coming off from the insertion hole 2 to be locked.

Of course, it may be provided at two or more places. For example, even when the bolt B is inclined, the upper locking projection 3 is locked in the screw groove 4 so that the retaining action is further improved even if the bolt B is inclined. good.

Further, the present invention is applied to a plurality of communicating holes 2 communicating with each other, and locking projections 3 are provided so as to be arranged at different positions with respect to each of the inserting holes 2, thereby improving the retaining function. You may let it.

However, in the present embodiment, if too many locking projections 3 are provided, it becomes difficult to insert the bolt B into the insertion hole 2, and a sufficient load such as the weight of the metal fitting is always applied to the bolt B. Then, taking into account that it is unlikely that the engagement with the screw grooves 4 at the lower left and right two places will be released, only the lower left and right two places are provided, and the other insertion holes 2 are also at the same lower side, respectively. It is configured to be provided in two places.

In this embodiment, the angle (center angle) between the two locking projections 3 and the center of the insertion hole 2 is approximately 90.
It is configured to be a degree.

By designing the center angle in the range of 40 to 120 degrees, the bolt B is supported and held while being well-balanced from two places on the left and right sides. Will be done.

The two locking projections 3 are designed to be slightly smaller than the outer diameter of the bolt B, so that the screw groove 4 is surely formed.
And the locking projection 3 is locked.

Further, in this embodiment, even if the insertion hole 2 is designed to be slightly larger so that the bolt B can be easily inserted, or even if a bolt B having a different standard can be inserted, the locking projection 3 can be inserted. Although the bolts B can be inserted by the locking action, but the bolt B or the load applied to the bolt B on the mounting portion 1 side, the locking action works reliably, and the bolt B does not come off easily. The stopping action is exhibited.

Next, a pipe support fitting to which the present invention is specifically applied will be described.

There are various types of pipe support fittings, but the point is that the fastening bolt is set in the above-mentioned retaining state so that the bolt can be inserted even if the screw connection of the fastening bolt is removed. It is difficult to come off from the hole and the metal fittings are not loosened, so that the mounting work can be performed smoothly without supporting the bolts and metal fittings by hand, and the workability and safety of the mounting and removing work are improved.

A description will be given of an example in which the present invention is applied to one structural example of a pipe support fitting with reference to the drawings.

As shown in FIG. 1, a mounting member 9 (a screw fitting as shown in FIG. 2) provided with the hanging bolt screw portion 8 on the upper portion and an upper portion of the clamping halves 5, 6 are overlapped. Then, the bolt B is inserted and screwed into the overlapped portion, and the clamping half
In the pipe support fitting configured to hold the closed,
The overlapping portion of the mounting member 9 is referred to as the mounting portion 1, and the bolt locking structure is provided in the insertion hole 2.

In this embodiment, the bolt locking structure is applied to each of the communicating holes 2 of the opposed hanging pieces of the mounting member 9 as described above. It may be applied to the insertion hole 2 provided in the upper part of the half body 5.

Accordingly, the piping support fitting of this embodiment is the same as that shown in FIG.
As shown in FIG. 5, even if the holding half 6 is opened by removing the screw connection between the screw hole 10 provided in the other holding half 6 and the fastening bolt B,
Since the self-weight of the holding halves 5 and 6 is applied to the fixing bolt B, a plurality of locking projections 3 are engaged in the screw grooves 4 of the bolt B, and unless the bolt B is dared to be slightly lifted by hand. It becomes impossible to escape.

Therefore, as shown in FIG. 1, if a predetermined load is applied to the bolt B even if the screw connection of the bolt B is released, the bolt B does not come off or the metal fittings do not fall off. .

Further, as shown in FIG. 3, even if the bolt B is tilted, or if a bolt B having a different diameter is used, the above-mentioned locking action is reliably exerted. Therefore, according to the present invention, the bolt B can be prevented from coming off easily by applying an extremely simple processing means, thereby preventing the fitting from being loosened as in the above-described embodiment.

[0038]

Since the present invention is constructed as described above, the bolt can be inserted through the insertion hole by merely providing the locking projection in the insertion hole, but the bolt is inserted relative to the insertion hole. When a load is applied, the locking projection is securely locked in the screw groove of the bolt, so that the bolt has an epoch-making bolt locking structure in which the bolt is held in a state of being prevented from being removed from the insertion hole.

According to the second and third aspects of the present invention, the bolt is engaged with the screw groove of the bolt at two places on the left and right sides below the hole edge.
As described above, if a load is applied to the bolt relative to the insertion hole, the locking projection is securely supported on the screw groove with good stability, so that a more excellent retaining locking function is achieved. This is an extremely revolutionary bolt locking structure.

According to the third aspect of the present invention, the formation of the locking projection is easy, and the processing cost is not so high.
A bolt locking structure that is more practical.

Further, in the invention according to claims 4 and 5, the fixing bolt is set to the above-mentioned retaining locking state, so that even if the fixing bolt is disengaged from the screw connection, the bolt does not easily come off from the insertion hole. In addition, the pipe support metal fittings can be smoothly mounted without holding the bolts and metal fittings by hand without disturbing the metal fittings, and the workability and safety of the mounting and dismounting work are extremely improved.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of a pipe support fitting of the present embodiment.

FIG. 2 is an explanatory perspective view of a mounting member of the pipe support fitting of the present embodiment.

3A and 3B are an explanatory front sectional view and an explanatory side sectional view of a main part showing insertion and locking of bolts having different diameters according to the present embodiment and locking even when the bolt is inclined.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mounting part 2 Insertion hole 3 Locking protrusion 4 Screw groove 5 Holding half 6 Holding half 7 Hanging bolt 8 Hanging bolt screwing part 9 Mounting member A Pipe B Bolt

Claims (6)

[Claims] 1. A plurality of locking projections are provided at predetermined intervals on a hole edge of an insertion hole provided in a plate-shaped mounting portion, and at least the two positions are provided in screw grooves of bolts inserted into the insertion hole. Wherein the locking projection is locked so that the bolt is prevented from coming out of the insertion hole and locked. 2. The locking projections are provided on the left and right sides below the hole edge of the insertion hole, and the left and right locking projections on the lower side of the hole edge are locked into the screw groove from right and left, and a bolt is inserted from the insertion hole. 2. The bolt locking structure according to claim 1, wherein said bolt locking structure is configured to be in a locking state. 3. An angle (center angle) between the two locking projections and the center of the insertion hole is in a range of 40 to 120 degrees.
3. The bolt locking structure according to claim 2, wherein the facing distance is set to be smaller than the bolt diameter. 4. The method according to claim 1, wherein the locking projection is formed when the insertion hole is formed, and is integrally provided so as to project from the edge of the hole toward the inside of the hole. The described bolt locking structure. 5. A lower half of a clamping half for holding and supporting a pipe is pivotally connected to be openable and closable, and a bolt is screwed on an upper part of the clamping half so as to be closed and held. The bolt locking structure according to any one of claims 1 to 4, wherein in a pipe support fitting provided with a hanging bolt screwing portion to be screwed to the hanging bolt, at least an upper portion of the one holding half is used as the mounting portion. A pipe support fitting characterized by comprising: 6. A mounting member having a lower portion of a clamping half for holding and supporting a pipe so as to be openable and closable, and an attachment member provided with a hanging bolt screw portion on an upper portion and an upper portion of the clamping half being overlapped. Set up
5. A pipe support fitting configured to insert and screw said bolt into said overlapped portion to close and hold said clamping half, wherein at least an overlapped portion of said mounting member is used as said attachment portion. A pipe support fitting provided with the bolt locking structure described in (1).