JPH051683Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a band type clamp for clamping a cylindrical object, especially when a rubber hose is fitted on the outside of a steel pipe, for example, to tighten it to prevent the rubber hose from coming off. This invention relates to a band type clamp suitable for.

(Prior Art) This type of clamp is disclosed in Japanese Patent Publication No. 14702/1983. In this clamp, as shown in FIG. 5, both ends 22 and 23 of a band 21 are aligned and fixed to a lever 24, and a stopper 25 is provided on a part of the band. To clamp, the lever 24 is pushed down around the fulcrum p in the direction of the arrow, and the lever is held by the stopper 25.

(Problems to be Solved by the Invention) This conventional clamp has the advantages of a simple structure, light weight, and easy operation. However, band 2
Both ends 22 and 23 of 1 are fixed to the lever 24 in advance, so when connecting a steel pipe and a rubber hose, for example, it is necessary to pass one of them through the band 21 in advance, and it is necessary to pass one of them through the band 21 in advance. It may not be possible to use it when clamping.
Therefore, it is desirable to be able to clamp one end of the member to be clamped from the periphery without having to pass it through the band.

(Means for Solving the Problem) In order to solve this problem, the band-type clamp of the present invention bends both ends of the band to form bent pieces, and these bent pieces are engaged with each other to form the band. In band type clamps that clamp cylindrical objects,
When the two ends of the band are brought close together and bent into a circular shape, one end of the band is bent once to the outside of the circle to form a single outer bent piece, and the other end of the band is bent into a circular shape. a double inner bent piece that is bent inward twice to be longer than the outer bent piece; and a double inner bent piece that is bent inwardly from the other end of the circularly bent band. The one end of the band that is tightly wrapped around the object to be clamped with the outer bent piece inserted between the double inner bent piece and the other end of the band. and a clasp that firmly holds the other outer end of the band from the inside.

(Function) Since the present invention uses a band with both ends free, there is no need to pass the object to be clamped through the loop of the band, and the operation is simple because the loop can be wrapped around the object.

Since it can be manufactured with a simple operation of just folding both ends of the band, it can be manufactured on-site according to the object to be clamped.The number of parts that make up the band type clamp is small, and the manufacturing process is short, so it can be manufactured at low cost. can do.

In this invention, the inner folded piece is made longer than the outer folded piece, so when folding the inner folded piece so that it comes into close contact with the band, the inner folded piece acts like a lever of a screw, so it can be easily folded down with a light force. It is possible,
No special tools required.

(Embodiment) A preferred embodiment of the present invention is shown in Fig. 1a, in which a band 1 of a rolled steel strip is cut to a required band width, for example, 7 mm, and one end is bent at a bending point. 2 to form an outer bent piece 3. The other end of the band 1 is bent inward slightly longer than the outer bent piece 3 to form a bent piece 4, and this bent piece 4 is further bent inward to form an inner bent piece 5.

As shown in FIG. 1b, the stopper 6 is fixed to the band 1 in advance by spot welding or the like. Alternatively, as shown in FIG. 1c, it may be bent and prepared separately without being fixed.

For example, to clamp a rubber tube 9 fitted on the outside of a steel tube 8, put the band 1 around the rubber tube 9 in the open state as shown in FIG. 3 is inserted between the inner bent pieces 4 and 5 and the band 1. In this case, the length of the band is adjusted in advance so that the end 7 of the inner bent piece 5 (see FIG. 1) hits the bending point 2 of the outer bent piece 3, so that it matches the outer diameter of the steel pipe 8 and the rubber pipe 9. , determine the position of the folded piece.

Although it has been described that the end portion 7 of the inner bent piece 5 and the bending point 2 are brought into contact with each other, this need not necessarily be done. However, in that case, it is necessary to make the holding by the stopper 6 even stronger. In this way, the clamp can be used even if the outer diameter of the object to be clamped changes somewhat.

Next, the inner bent pieces 4 and 5 are folded in the direction of the arrow in FIG. 2, and the stopper 6 is bent onto the band to hold the inner bent pieces 4 and 5 as shown in FIG.

By bending the other end of the band 1 twice inward into a circle to form the inner bent pieces 4 and 5, it is inserted between the other end of the band 1 and the inner bent pieces 4 and 5. The strength necessary to further bend the bent outer bent piece 3 to firmly grip it can be obtained.

(Effects of the invention) The band type clamp of the invention can be easily made from the same simple material by bending both ends of the steel strip and spot welding the cut steel strip to make a clasp, or by providing a separate clasp. It has the advantage that it can be manufactured at a very low cost. It is easy to operate because there is no need to pass one end of the object to be clamped through the clamp ring.
Fast and reliable clamping can be performed.

[Brief explanation of drawings]

Fig. 1a is a front view of a preferred embodiment of the band type clamp of the present invention, Fig. 1b is a partial front view taken in the direction of arrow A in Fig. 1a, and Fig. 1c is a separate stopper. Fig. 2 shows the position in the middle of clamping with the band type clamp of the present invention, Fig. 3 shows the state of clamping with the band type clamp of the present invention, and Fig. 4 is a plan view of Fig. 3, FIG. 5 is a front view of an example of a conventional band type clamp. 1... band, 2... bending point, 3... outer folded piece, 4... folded piece, 5... inner folded piece,
6... Clasp, 7... End, 8... Steel pipe, 9...
Rubber tube, 21... band, 22, 23... both ends of the band, 24... lever, 25... stopper.

Claims (1)

[Scope of utility model registration request] In a band type clamp for clamping a cylindrical object, the band 1 is formed by bending both ends of the band to form bent pieces, and providing a stopper that engages the bent pieces with each other to hold the band tightly. When the two ends of the band are brought close together and bent into a circular shape, one end of the band is bent once to the outside of the circle to form a single outer bent piece 3, and the other end of the band is bent into a circular shape. double inner bent pieces 4 and 5 which are bent inward twice to have a longer length than the outer bent piece 3; The outer bent piece 3 was inserted between the bent double inner bent pieces 4 and 5 and the other end of the band, and was tightly wrapped around the body to be clamped. A band type clamp comprising a stopper 6 that firmly holds the other end of the band 1 from the inside of the one end of the band 1.