JPH0444952Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention is based on the hose clamp shown in Japanese Utility Model Publication No. 14511/1983, and is an aggressive improvement of this conventional clamp.

"Prior Art" Although not specifically shown in the drawings, the above-mentioned conventional hose clamp consists of a clamp body made of a single piece of elastic flat material cut into a predetermined shape, an annular tightening ring portion, and the ring. It consists of a pair of grip parts that extend in opposite directions and stand up at both ends of the grip, and has an inverted U-shaped cross section that can hold the pair of grip parts close to each other against elastic force. The structure is such that a holder for displaying the image is separately provided.

In actual use, the holder is fitted onto the pair of grips that are close to each other, the grips are temporarily maintained in close proximity, and the diameter of the tightening ring is expanded in advance. Next, after the rubber hose has been inserted into the tightening ring whose diameter has expanded and the rubber hose has been fitted into the end of the connecting pipe, the holder is removed from the pair of grips and the rubber hose is inserted into the tightening ring. By opening the rubber hose, the diameter of the tightening ring portion is automatically reduced by elastic force, and the rubber hose is securely tightened and fixed to the pipe.

``The problem that the invention aims to solve'' However, in the case of conventional hose cranks, enlarging the tightening ring part using a holder is
Since the tightening ring part can be easily enlarged,
It has the advantage of making it extremely easy to insert the rubber hose into the tightening ring, but on the other hand, if the diameter of the hose to be tightened is relatively small, it is better to fit the small diameter hose to the end of the connecting pipe. When inserting the hose, the clamp body that was inserted first often accidentally moved on the hose.

For this reason, in the past, after fitting the rubber hose to the end of the pipe, it was necessary to reset the moving clamp body to the tightening point of the hose. This poses a problem that could become very difficult.

In addition, in conventional hose clamps, when the holder is removed from the grip portion, the pair of grip portions are automatically released, and at the same time, the tightening ring portion is also automatically reduced in diameter. However, at this time, a part of the rubber hose may be caught between the intersections of the respective grip parts, resulting in damage and deterioration of the rubber hose itself, which is also seen as a problem.

``Means for Solving the Problems'' Therefore, the present invention was developed in order to effectively solve the conventional problems. Assuming that the hose clamp is composed of a pair of grip parts that control the enlarged diameter of the hose clamp and that can hold the pair of grip parts close to each other via a holder, the tightening ring part and the curvature are An auxiliary spring plate exhibiting different curved surface shapes is provided, and the auxiliary spring plate is placed in a state where it faces the intersection portion of the pair of grip portions,
We adopted a structure in which it is slidably attached to the inside of the tightening ring.

"Function" Therefore, in the present invention, even if the diameter of the hose to be tightened is relatively small, the auxiliary spring plate that is slidably attached to the inside of the tightening ring part can
It is possible to make direct elastic contact with the surface of the hose to be tightened and temporarily fix the clamp body at that point, so when fitting the hose to the end of the connecting pipe,
The clamp body that was inserted first will never move carelessly on the hose.

Therefore, in the case of the present invention, since it is possible to temporarily fix the clamp body to the tightening point of the hose from the beginning, after fitting the hose to the end of the connecting pipe as in the conventional case, There is no need to reset the moved clamp body to the hose tightening point.

Furthermore, when the hose is tightened, the auxiliary spring plate that provides a temporary fixing function comes into direct surface pressure contact with the hose surface, making it possible to tighten the hose with uniform tightening force. At the same time, it is possible to prevent the intersection of a pair of grips from coming into contact with the hose surface, so there is no need to worry about damage or deterioration of the rubber hose due to a part of the hose being caught between the intersections of the grips, unlike in the past. It completely disappears.

``Embodiment'' Hereinafter, the present invention will be described in detail based on an embodiment illustrating the present invention.As shown in FIG. The clamp body consists of a clamp body, an annular tightening ring part 2, and a pair of grip parts 3a and 3b that control the enlarged diameter of the ring part 2. It can be held in a state where it is approached through the holder 4, and its feature is that in addition to the holder 4, it also includes an auxiliary spring plate 5, which will be described below.

That is, in this embodiment, as shown in the figure, the auxiliary spring plate 5 is made of an elastic flat plate material and formed into a curved surface having a different curvature from the tightening ring portion 2, while the curved auxiliary spring plate 5 is Locking pieces 6, 6, which lock onto the side edges of the tightening ring portion 2 from the outside, are provided on both side edges of each end.
6, 6 are integrally formed, and can be slid inside the tightening ring portion 2 through the locking of each of the locking pieces 6, facing the intersection portion of the grip portions 3a, 3b. It is configured so that it can be installed on.

Therefore, using a hose clamp with such a configuration,
When tightening and fixing the rubber hose 7 to the end of the connecting pipe 8, as shown in FIG. After the attached ring part 2 is forcibly expanded in diameter and the rubber hose 7 is inserted into the expanded diameter ring part 2, the rubber hose 7 is fitted into the end of the connecting pipe 8. As mentioned above, since the auxiliary spring plate 5 having a different curvature from the ring part 2 is attached to the inside of the tightening ring part 2, the flexure of the auxiliary spring plate 5 is obtained to connect the rubber hose 7. When inserted into the tightening ring part 2, especially the second
As shown in Figure B, the auxiliary spring plate 5 is attached to the rubber hose 7.
The clamp body 1 is attached to the hose 7 by making direct contact with the surface.
It will be temporarily fixed at that point.

Therefore, in this embodiment, when fitting the rubber hose 7 to the end of the connecting pipe 8, the clamp body 1 is absolutely prevented from moving carelessly on the hose 7, and the clamp body 1 and other From hose 7
Since the clamp body 1 can be temporarily fixed at the tightening point of the hose 7, the clamp body 1 can be reset to the tightening point of the hose 7 after fitting the rubber hose 7 to the end of the pipe 8 as in the conventional method. No work is required at all.

Thereafter, as shown in FIG. 3A, when the holder 4 is removed from the pair of grip parts 3a, 3b and the pair of grip parts 3a, 3b are released from each other, the tightening ring part 2 has its own elasticity. Since the diameter is reduced by force and the outer periphery of the rubber hose 7 is reliably tightened, the hose 7 is reliably tightened and fixed to the end of the connecting pipe 8.

Moreover, in such a tightened and fixed state, the auxiliary spring plate 5 is attached to the rubber hose 7 as shown in FIG. 3B.
Since it comes into direct surface pressure contact with the surface, it is possible to tighten the hose 7 with a uniform tightening force, and the intersection portion of the grip portions 3a and 3b is prevented from coming into contact with the surface of the hose 7. Therefore, as in the conventional case, a part of the rubber hose 7 is attached to each grip part 3.
There is no fear that the rubber hose 7 itself will be damaged or deteriorated due to being caught between the intersections of a and 3b.

In addition to the above-mentioned effects, the interposition of the auxiliary spring plate 5 between the intersection of the rubber hose 7 and the grip parts 3a and 3b smoothes the fluctuation of the intersection of the grip parts 3a and 3b. rubber hose 7
Even if the diameter of the hose 7 becomes smaller due to aging, the tightening ring portion 2 can easily reduce in diameter due to the change in the intersecting portion. There is no need to worry about the attachment and fixation being defective.

"Effects of the Invention" As described above, the present invention is characterized by the provision of an auxiliary spring plate having a curved surface with a different curvature from that of the clamping ring portion, and the auxiliary spring plate being slidably attached to the inside of the clamping ring portion in a state where it faces the intersection portion of a pair of grip portions. Therefore, even if the diameter of the hose to be clamped is relatively small,
The auxiliary spring plate attached to the inside of the clamping ring part comes into direct elastic contact with the surface of the hose to be clamped, making it possible to temporarily fix the clamp body at that location, so that the clamp body will never move inadvertently on the hose when the hose is fitted onto the end of the connecting pipe.

Therefore, in the present invention, it is possible to temporarily fix the clamp body to the tightening point of the hose from the beginning, so that after fitting the rubber hose to the end of the connecting pipe, as in the conventional case, There is no longer any need to reset the moved clamp body to the hose tightening point.

Furthermore, when the hose is tightened, the auxiliary spring plate, which provides a temporary fixing function, comes into direct surface pressure contact with the hose surface, making it possible to tighten the hose with uniform tightening force. In addition, since the hose is prevented from coming into contact with the intersection of the grips, there is no fear that the rubber hose itself will be damaged or deteriorated due to a portion of the hose being caught between the intersections of the grips.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing a hose clamp having a temporary fixing function according to an embodiment of the present invention, and Fig. 2A
Figure 3A is a perspective view of the main parts showing the state in which the hose clamp is temporarily fixed to the rubber hose, Figure B is a sectional view of the same, Figure 3A
1 is a perspective view of a main part showing a state in which a rubber hose is tightened with a hose clamp, and FIG. 2B is a sectional view of the same. 1... Clamp body, 2... Tightening ring part, 3
a, 3b...Grip part, 4...Holder, 5...
...Auxiliary spring plate, 6...Locking piece, 7...Rubber hose, 8...Connection pipe.

Claims (1)

[Scope of utility model registration request] The clamp body is composed of an annular tightening ring portion and a pair of grip portions that handle the expanding diameter of the ring portion, and is configured to be able to hold the pair of grip portions close to each other via a holder. The hose clamp is provided with an auxiliary spring plate having a curved surface having a curvature different from that of the tightening ring part, and the auxiliary spring plate is held inside the tightening ring part with the auxiliary spring plate facing the intersection of the pair of grip parts. A hose clamp with a temporary fixing function, characterized by being slidably attached to the hose clamp.