JPH0417895Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a holder for temporarily fixing a hose tightening band, and more specifically, for connecting and fixing a rubber hose to a radiator pipe, etc. in the engine compartment of a car. The present invention relates to a holder for temporarily fixing a spring-tightened hose tightening band used for the purpose of the present invention in an enlarged diameter state.

[Prior Art] As such a conventional temporary holder, there is, for example, a U-shaped holding tool 1 shown in FIGS. 6 and 7 (see Japanese Utility Model Publication No. 14511/1983). This clamping tool 1 is
By bending and displacing the projecting pieces 5, 5' at the tips of the notched recess 3 and the protruding part 4, which are provided at both ends of the spring-tightened hose tightening band 2 and overlap each other, into parallel positions, the band is fitted. 2 was supposed to be temporarily fixed in the expanded diameter state.

After the band 2 in such a temporarily fastened state is inserted onto the hose 6, the clamping tool 1 is pinched with a tool such as pliers and removed from the projections 5, 5', and the band 2 is removed.
The hose 6 was tightened by its restoring force.

[Problems to be Solved by the Invention] By the way, in view of the recent demand for high pressure resistance for the band 2, leaf springs constituting the band 2 are used with a considerably high spring constant. Therefore, the clamping tool 1 fitted with the protrusions 5, 5' is subjected to strong pull-out resistance due to friction with the protrusions 5, 5', and on one side, the clamping tool 1 may come off due to unexpected reasons. Although this is effective in preventing flying accidents, it is accompanied by the following problems.

Due to the strong pulling resistance of the clamping tool 1, it was not possible to easily and quickly perform a pulling operation using pliers or the like.

If you firmly grasp the clamping tool 1 with pliers or the like and try to pull it out forcibly, a large tensile force in the radial direction will act on the pipe (not shown) connected to the hose 6, causing the pipe to deform (bend or bend). ).

In view of the above, as shown in FIGS. 8 and 9, a tongue piece 8 that projects in the direction in which the U-shaped clamping tool 7 is pulled out is provided in the longitudinal center of the U-shaped clamping tool 7 by cutting and machining. There is also an improved type in which the clamping tool 7 is pulled out by pinching the tongue piece 8 with pliers 9 or the like.

However, even in such an improved type, although the pinching operation by the pliers 9 is made easier to some extent, when the clamping tool 7 is pulled out, the pulling out resistance is applied, so the above-mentioned problem is not solved. Ta.

Therefore, the present invention aims to make it possible to easily pull out the temporary holder of the hose tightening band with a small force even if the pullout resistance is strong.
This is a technical problem to be solved.

[Means for Solving the Problems] A technical means for solving the above problems is to use a belt-shaped leaf spring formed in an annular shape, and to provide a notched recess and a convex portion at both ends of the spring, which are inserted and overlapped with each other. A holder for temporarily fixing a hose tightening band having outwardly directed temporary fixing protrusions at the tip thereof, the protrusions arranged side by side in parallel when the diameter of the band is expanded. A channel-shaped fitting part with a U-shaped cross section to be fitted, and a holder for pulling out the band, which is partially cut and raised in the longitudinal center of the fitting part and protrudes outward from the band. A tongue piece is provided, and a protrusion protruding inward is provided on the side wall of the fitting part.

[Function] Each temporary fixing protrusion of the hose tightening band is restrained by the fitting portion of the holder, the protrusion comes into contact with the temporary fixing protrusion, and the hose tightening band is held in an expanded state.
When the tongue piece of the holder that temporarily fixes the hose tightening band is pinched and pulled with pliers or the like, the temporary fixing protrusion has little frictional resistance at the protrusion.

[Example] Next, an example of the present invention will be described based on FIGS. 1 to 4.

The holder 22 is formed using a sheet metal material, and includes a fitting part 11 which is a channel-shaped member with a U-shaped cross section, and a holder-pull-out operation hole formed at the center of the fitting part 11 in the longitudinal direction. The tongue piece 23 is the main body. The tongue piece 23 is formed by cutting and raising the side wall 22A and upper wall 22B at the center of the fitting part 11 so as to protrude outward from the holder 22.

A side wall 22C on one side of the holder 22 is provided with a protrusion 24 along the longitudinal direction that bulges inward.

This holder 22 is used as follows. That is, as shown in FIG. 1, the tips of the notch recess 14 and the convex part 15, which are provided at both ends of the hose tightening band 13 formed in an annular shape using a band-shaped leaf spring, are inserted and overlapped with each other. The diameter of the band 13 is expanded using a suitable jig or the like until the band 13 is positioned side by side in parallel, and the outward protrusions 16 and 16' provided at the tips of the cut recess 14 and the protrusion 15 are attached to the holder 22. Fitting part 1
By fitting the band 13 into the band 1, the band 13 is temporarily fixed in the expanded diameter state. Since this holder 22 makes a line contact with the temporary fixing protrusion 16' of the hose tightening band 13 on the side wall 22C, the frictional resistance with the protrusion 16' at this portion is reduced. Therefore, when the holder 22 is pulled out from the tongue piece 23, the resistance to pull out the holder 22 can be reduced.

The temporarily fastened band 13 is delivered to the user and used to tighten a rubber hose 18 connected to a pipe 17, as shown in FIG. That is, the second
As shown in the figure, after the band 13 is inserted onto the hose 18, the tongue piece 23 of the holder 22 is inserted into the pliers 19.
(For the front shape, see pliers 9 in Fig. 9) When the holder is clamped and pulled in the direction of pulling out the holder (upward in the figure), the protrusion 16' that contacts the protrusion 24 has little frictional resistance, so the holder 22 can be easily pulled out. Therefore, even if the pullout resistance of the holder 22 due to the restoring force of the band 13 is strong, the low frictional resistance due to the protrusions 24 is utilized, so the holder 23 can be easily pulled out even with a relatively small tensile force via the pliers 19. It can be pulled out.
Therefore, the holder 23 can be pulled out easily and quickly, and at that time, the pipe 17 can be pulled out easily and quickly.
Since no large tensile force is applied to the pipe 17, there is no risk of the pipe 17 breaking or bending.

When the holder 22 is pulled out in this way, the hose tightening band 13 tends to contract due to the restoring force.
The hose 18 connected to the pipe 17 is tightened.

Note that the above-mentioned protrusion 24 may also be provided on the other side wall 22A of the holder 22.

Furthermore, the following may be considered as aspects of the temporary holder.

Holder 2 with tongue piece for pull-out operation shown in Fig. 5
5, a portion along the lower end of one side wall portion is bent inward to form a protrusion 26 for abutting against the temporary fixing protrusion of the hose tightening band. This holder 25 can also be expected to have the same effect as the holder 22.

[Effects of the invention] The invention can reduce the resistance to pulling out the holder that temporarily fastens the hose tightening band, and thereby prevent the pipe connected to the hose from bending or bending.

In particular, the present invention has a protrusion that protrudes inward on the side wall of the fitting part of the holder to reduce frictional resistance with the temporary fixing protrusion of the hose tightening band, making it easier to pull out the holder. have

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the temporarily fastened state of the hose tightening band in the embodiment of the present invention, Fig. 2 is a side view showing the main part of the holder removal operation, Fig. 3 is a perspective view of the holder, and Fig. 4 The figure is a side view of the same holder.
The figures are side views of a holder of another embodiment, Figures 6 and 7.
The figure shows a conventional example, and FIGS. 8 and 9 show a conventional example with a different structure. 11...Fitting part, 13...Band, 14...Notch recess, 15...Protrusion, 16, 16'...Protrusion piece,
22, 25... holder, 23... tongue piece, 24...
Projection.

Claims (1)

[Claims for Utility Model Registration] A belt-shaped plate spring is formed into an annular shape, and the notched recesses and convex parts that are inserted and overlapped with each other are provided at both ends, and at the tips of the protrusions facing outward for temporary fixing. A holder for temporarily fixing a hose tightening band, comprising: a channel-shaped fitting portion having a U-shaped cross section into which the protrusions placed side by side are fitted when the band is in an expanded diameter state; , a tongue piece for operating the holder to be pulled out protrudes outward from the band by cutting and raising a part of the fitting part in the longitudinal center of the fitting part; is a holder for temporarily fixing a hose tightening band, characterized in that it is provided with a protrusion that protrudes inward.