JPH0135024Y2 - - Google Patents

Description

[Detailed explanation of the idea] B. Purpose of the invention (Industrial application field) This invention applies to pipe hangers.

(Prior art and its problems) Conventionally, a pipe hanger is a type in which a pair of semicircular pieces are connected at one end so as to be freely openable and closable, and a pipe is tightened between the semicircular pieces using a fastener using a lug at the other end. However, with such hangers, the weight of the pipe puts a load on the connecting part, so over a long period of time, the material will fatigue and the winding part that supports the pin will be forcibly released, causing the pipe to fall. It's extremely dangerous.

In order to avoid this, as shown in FIG.
There is a pipe hanger (Japanese Utility Model Publication No. 58-21970) which is reinforced by forming a multilayer part 10 on the pipe to withstand the pipe load.

However, this has the problem that more material has to be used to form the multi-layer section, especially in proportion to the pipe load.

B. Structure of the invention (means for solving the problem) It is sufficient to prevent release by utilizing the load itself of the pipe that attempts to forcibly release the winding part for the pin support.

In other words, the pin support winding part is wound in the same direction as the curved direction of the semicircular piece, and when the pipe is tightened, the outer wall of the pin support winding part is circumscribed by the pipe (even if it is a little apart, the hanger will be (including the case where it deforms and becomes circumscribed).

(Function) When the pipe is tightened, the tightening and the weight of the pipe cause the pipe and the outer wall of the pin support winding to come into circumscribed contact, and the friction prevents the pin support winding from being released.

(Example) In the following, the same numbers refer to the same or corresponding parts.

In FIGS. 1 to 3, 1a and 1b are semicircular pieces that form a pair, and are connected at one end in a hinge-like manner so as to be openable and closable, and at the other end are through-holes 3a in the ear pieces 2a and 2b. By inserting bolts 4 through and 3b and tightening them with nuts 5, the pipe 20 is tightened between the semicircular annular pieces 1a and 1b.

The semicircular pieces 1a and 1b each have alternately protruding pin-supporting windings 8a and 8b, into which the pin 7 is inserted and both ends are caulked to form the connecting part 6. This pin support winding part 8a
and 8b are different from the conventional ones (see Figure 4),
It is wound in the same direction as the curved direction of the semicircular annular piece.

First, the pipe 20 is sandwiched between the semicircular pieces 1a and 1b, the bolts 4 are inserted into the through holes 3a and 3b, and the nuts 5 are tightened. At this time, the hanger is suspended by placing a hanging rod 21 or the like between the ears 2a and 2b as before. In this state, the load of the pipe 20 is applied to the connecting portion 6, and the pin supporting winding portions 8a and 8b attempt to be released. However, the release is prevented by friction at the contact portion between the pipe 20 and the pin support windings 8a and 8b. Even if the pipe and the pin-supporting winding are not in circumscribed contact at the beginning and are separated from each other to some extent, release is similarly prevented after the circumscribed contact is achieved due to deformation of the hanger.

C. Effects of the invention In the present invention, the friction between the pipe and the pin support winding prevents the pin support winding from being released. That is, since the weight of the pipe itself is used to prevent the pin support winding from being released, the purpose can be achieved effectively and economically.

[Brief explanation of drawings]

FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is an exploded perspective view of a winding portion for pin support, and FIG. 4 is a front view of a conventional hanger. 1a, 1b... Semicircular ring piece, 2a, 2b... Ear piece, 6... Connecting part, 7... Pin, 8, 8a, 8b
...... Winding part for pin support, 10, 10a, 10b
...Multi-layer section, 20...Pipe, 21...Hanging rod.

Claims (1)

[Scope of utility model registration request] In a pipe hanger in which a pair of semicircular pieces are connected at one end so as to be freely openable and closable, and a pipe is tightened between the semicircular pieces using a fastening tool using an ear piece at the other end, the bending direction of the semicircular pieces and A pipe hanger having a pin support winding part wound in the same direction, and the outer wall of the winding part circumscribing the pipe when the pipe is tightened.