JPH06114753A - Temporary fixing releasing tool for hose clamp - Google Patents

Abstract

PURPOSE:To efficiently release a clamp from its temporary fixing by pivotally mounting a pair of handle parts, having a nipping-pressing part at the tip, so that the inside in the vicinity of the nipping--pressing part can be opened/closed, and forming an insertion piece, protruded inward, in one press holding part and a press-tilt surface, separated more from the insertion piece in accordance with approaching the tip, in an internal surface of the other nipping-holding part, in a hose clamp temporary fixing releasing tool used in assembling an automobile. CONSTITUTION:A pair of handle parts 29, 30 are pivotally mounted so as to open/close with a shaft 28 serving as a supporting point, and a pair of nipping-pressing parts 31, 32 are provided so as to be opened/closed by opening/closing of the handle parts 29, 230, in an opposite side to these handle parts 29, 30 relating to the shaft 28. An insertion piece 33 protruded inward is protrusively provided at a tip of one nipping- pressing part 31. A pressing tilt surface 34 separated more from the insertion piece 33 in accordance with approaching the tip s formed in an internal surface of the other nipping-pressing part 32. In this constitution, by closing action of the handle parts 29, 30, the insertion piece 33 cooperates with the pressing tilt surface 34 to release a temporary fixing condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool used for releasing a temporarily fixed state of a leaf spring hose clamp with a temporary fixing function.

[0002]

2. Description of the Related Art A spring-tightened hose clamp used for connecting a rubber hose to, for example, a radiator pipe when attaching parts to an automobile, and which has a temporary fixing function is conventionally shown in FIGS. 14 and 15, for example. There is a type shown in FIG. 16 and a type shown in FIGS.

First, the hose clamp shown in FIGS. 14 and 15 will be described. The hose clamp 1 is provided with extension pieces 3 and 4 along the circumferential direction of the strip-shaped leaf spring body 2 in a staggered manner at both ends of a strip-shaped leaf spring body 2 formed in an annular shape. The tips of the pieces 3 and 4 are bent outward along the radial direction of the strip-shaped leaf spring body 2 to form temporary fixing portions 5 and 5. Also, in the state where the strip-shaped leaf spring main body 2 is expanded, as shown in FIG. 11, the opposing temporary fixing portions 5 and 5 are temporarily fixed by the holder 6 having a U-shaped cross section, and then in this state, the connecting portion of the hose is connected. It is positioned and the holder 6 is removed using an appropriate tool such as pliers.

Since the hose clamp can be delivered in a temporarily fixed state, the delivery destination only needs to remove the holder when using the clamp, and the handling is easy. However, since the holder that is separate from the strip-shaped leaf spring body is used, there are the following problems.

That is, the first problem is that the number of manufacturing and assembling steps is increased, and the holder is discarded at the time of use, which leads to an increase in cost. The second problem is that the holder is When you try to remove it, the strong elastic force of the strip-shaped leaf spring body may cause it to bounce off and injure the worker.The third problem is that the used holder should be stored. If you do not do this, you will not be able to put the clamps in the temporarily fixed state when you replace the hose later.

Next, the hose clamp shown in FIGS. 16 and 17 will be described. The hose clamp 7 is formed in an annular shape with both ends facing each other, and a groove-shaped notch inserted in a portion opposite to the extending piece described later so that the extending piece forms the same peripheral surface in a free state. Strip-shaped leaf spring body 9 provided with a portion 8
And the stopper portion 10 which is integrally formed on one end side of the strip-shaped leaf spring body 9 along the circumferential direction thereof, and is bent at the tip toward the outside along the radial direction of the strip-shaped leaf spring body 9. And an extension piece 12 having a notch portion 11 formed in the stopper portion 10 and a tip end on the other end side of the strip-shaped leaf spring body 9 which is bent outward in the radial direction. A notch 13 slightly wider than the width of the extension piece 12 is provided, and a hook 14a at the tip of the notch 13 is provided at the stopper 1.
Receiving piece 15 provided with a locking projection 14 that hangs on the notch 11 of 0
It consists of and.

In order to temporarily fix the hose clamp 7, the strip-shaped leaf spring body 9 is expanded in diameter and the locking projection 1 of the receiving piece 15 is extended.
The hook portion 14a of No. 4 is adapted to hang on the notch portion 11 of the stopper portion 10 of the extending piece 12. Then, when releasing the locked state, an external force is applied so that the hook portion 14a is disengaged from the notch portion 11.

However, such a hose clamp must be prepared in the factory by using a special tool in order to bring it into a temporarily fixed state. Therefore, once the locked state is released in the field, it is returned to the temporarily fixed state. It is extremely difficult to return. Also, it is extremely difficult to cancel the temporarily fixed state.

The present inventor has devised a hose clamp shown in FIGS. 18 to 24 as a hose clamp which has improved the above-mentioned drawbacks of the conventional hose clamp and has improved usability. 72890).

It has a groove-shaped notch formed in an annular shape whose both ends are opposed to each other and which is inserted into the opposite side portion of the extending piece to be described later so that the extending piece forms the same peripheral surface in the free state. 1
7 is formed integrally with the strip-shaped leaf spring main body 16 provided on one end side of the strip-shaped leaf spring main body 16 along the circumferential direction thereof,
The tip end is bent outward in the radial direction of the strip-shaped leaf spring body 16 to form a stopper portion 18, and both side portions in the width direction are erected outwardly of the strip-shaped leaf spring body 16. An extension piece 20 provided with a pair of locking projections 19 and 19 in which a part of the standing tips 19a and 19a are projected toward the stopper portion 18 at a required inclination angle, and the strip-shaped leaf spring body 16 is provided. A notch portion 21 is formed at the other end side end portion so as to be bent outward in the radial direction and is slightly wider than the width of the extension piece 20, while the horizontal portion 22 is provided with the pair of locking protrusions. The engaging grooves 23, 23 are provided at intervals corresponding to the intervals of the pieces 19, 19 and are inclined at a required angle so as to become deeper toward the upper part, respectively.
3 is a hose clamp 26 including a receiving piece 25 provided with a cutout 24 on top of it. Incidentally, 27 is a protruding ridge formed on the strip-shaped leaf spring body 16. Further, other H indicates a hose.

In order to temporarily fix the hose clamp, the diameter of the strip-shaped leaf spring body 16 is expanded using an appropriate tool, and the strip-shaped leaf spring body 16 is extended outward from both sides of the extension piece 20. The locking projections 19 and 19 which are erected on the above are passed through the notch portion 21 of the receiving piece 25. After that, if the force for expanding the strip-shaped leaf spring body 16 is released, the inclined projecting portions 19 of the tip portions of the locking projections 19, 19 are released.
a and 19a are locked in the locking grooves 23 and 23 of the receiving piece 25, and are temporarily fixed. Then, in the temporarily fixed state, due to the force of expanding the strip-shaped leaf spring body 16, the inclined protruding portions 19a, 19a of the tips of the locking projections 19, 19 are locked in the locking grooves 23, 23. It will be pushed into the deepest part of the and will not easily come off even if shock or vibration is applied. When the temporary fixing state is to be released again, the locking projection 1
The inclined projecting portions 19a, 19a at the tips of 9, 9 may be removed from the locking grooves 23, 23, whereby the locking is released and the temporarily fixed state is released.

According to the hose clamp, the following effects can be expected. (1) Since it is not necessary to separately manufacture a holder for temporary fixing, it is economical and does not cause various inconveniences when it is lost. Furthermore, when the holder is removed, the fear of injury caused by the splashed holder is eliminated. (2) Even when the locked state is released once at the site,
Even if you don't have a big tool, it is easy to use the tool on site to put it in the temporary fixing state again. (3) While providing an inclined protrusion at the tip of the locking protrusion,
Since the locking groove provided in the receiving piece is also inclined so as to become deeper toward the upper part, the locking becomes stronger and the locking groove does not easily come off due to impact or vibration. Also,
By appropriately combining the inclination angle of the protruding portion of the locking protrusion and the inclination angle of the locking groove, the locked state can be freely adjusted.

As described above, the hose clamp has an excellent effect in use. But again,
There is a problem when releasing the temporarily fixed state. That is, when the hose clamp is going to release the temporarily fixed state, as shown in FIG. 23, the tip of the driver D is connected to the inclined projections 19a and 19a of the locking projections 19 and 19 and the locking groove 2.
It is carried out by pushing it between 3 and 23, or by inserting the tip of the driver D into the notch 24 of the receiving piece 25 and applying a force in the arrow direction to push the top of the stopper 18 downward.

However, since the diameter of the hose clamp is expanded, the inner diameter of the hose clamp is considerably larger than the outer diameter of the hose. Therefore, when trying to release the temporarily fixed state with a screwdriver, the hose clamp should be released. If it is not supported, it will be displaced in the axial direction of the hose as shown in FIG. For this reason, it is difficult to accurately set it at a desired position, and unnecessary time and labor are required. Further, the hose clamp has a strong force to return to its original state, and the frictional resistance of the contact surfaces of the locking projections 19, 19 and the locking grooves 23, 23 is also added, so that a considerable force is required for releasing. Therefore, it was difficult for a weak person to cancel.

[0015]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is possible to efficiently release the temporarily fixed state of the hose clamp previously devised by the present inventor. The purpose of the present invention is to provide a temporary fixing release tool.

[0016]

The gist of the present invention lies in the following points. (1) It is composed of a pair of handle portions that open and close with a shaft as a fulcrum, and a pair of pinching portions that open and close by opening and closing the handle portions, and one pinching portion has an insert piece that projects inward. A tool for temporarily releasing a hose clamp, which is provided with a pressing inclined surface having a required angle such that the other pressing portion has an inner surface formed on its inner surface such that the distance between the inserting piece and the insertion piece increases toward the lower part. . (2) It is composed of a pair of handle portions that open and close with a shaft as a fulcrum, and a pair of pressure portions that open and close by opening and closing the handle portions, and one of the pressure portions has an insert piece that projects inward. A tool for temporarily releasing a hose clamp, which is provided with a pressing inclined surface on the side surface of the other pressing portion.

[0017]

Next, the operation of the present invention will be described. First,
Position the hose clamp by inserting the plug-in piece on one of the clamping parts into the notch on the receiving piece of the hose clamp. Then, the pressing inclined surface of the other clamping portion is applied to the outer surface of the top portion of the stopper portion of the hose clamp. When both the handle portions are closed in this state, the space between the both pressure portions is narrowed. As a result, the part of the tip of the locking projection of the hose clamp that projects incline rises from the locking groove of the receiving piece, and at the same time, the top of the stopper part is removed by the pressing slope of the other clamping part. It is pushed out inward. As a result, the locking projection passes through the notch of the receiving piece, and the temporarily fixed state is released.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention. In the present embodiment, a pair of handle portions 29 and 30 that opens and closes around a shaft 28 as a fulcrum, and a pair of pinching portions 31 and 32 that opens and closes by opening and closing the handle portions 29 and 30 are provided. An inwardly projecting insertion piece 33 is provided on the inner side of the other pinching portion 32, and the inner surface of the other pinching portion 32 is pressed at a required angle such that the interval with the inserting piece 33 becomes larger toward the lower part. The inclined surface 34 is formed. The pair of handle portions 29 and 30 are urged by a spring 35 so as to be always opened.

Further, as shown in FIGS. 2 to 4, the insertion piece 33 in this embodiment is the receiving piece 2 of the hose clamp 26.
5 is to be inserted into the notch portion 24, and the pressing inclined surface 34 is the stopper portion 18 of the hose clamp 26.
It is for pushing the outer surface of the top of the inward toward the inner lower part. The inclination angle of the pressing inclined surface 34 is appropriately determined according to its purpose. Also, from the shaft 28 to the handle 29,
By making the length a to the tip of 30 larger than the length b from the shaft 28 to the tip of the pinching portion 33, it is possible to perform the releasing operation with a light force.

Next, a second embodiment of the present invention shown in FIGS. 5 to 8 will be described. The difference between this embodiment and the first embodiment is the difference in the structure of the pinching portion. There are two differences. The first difference is that in the first embodiment, the insertion piece 33 of the pinching portion 31 is connected to the hose clamp 2
6 is inserted into the upper cutout 24 of the receiving piece 25, the insertion piece 33 'is inserted into the cutout 21 of the receiving piece 25 of the hose clamp 26 in the present embodiment. None, therefore, the clamping unit 31
The point is that the length is longer than that in the first embodiment.

The second difference is that in the present embodiment, a guide frame 32a is integrally provided at the lower end of the pressing portion 32 so as to sandwich the inclined surface 34. Since the other configurations and operations are similar to those of the first embodiment, the same members are designated by the same reference numerals and detailed description thereof will be omitted.

Next, a third embodiment of the present invention shown in FIGS. 9 to 11 will be described. The difference between this embodiment and the first embodiment is the difference in the structure of the pinching portion. That is, the first embodiment has a structure that is used in a state orthogonal to the hose, whereas the present embodiment has a structure that can be used by being laid parallel to the hose. For this reason, the pressing inclined surface 34 ′ of the one pressing portion 32 is formed on the side surface of the pressing portion 32. The pressing inclined surface 34 '
Is closer to the hose clamp as it separates from the insertion piece 33 of the other pressing portion 31. Further, in this embodiment, the pressing inclined surface 34 'is formed on both side surfaces.

However, in the case of the present embodiment, the hoses are used by being laid parallel to the hose, and when the handle portions 29 and 30 are closed, the insertion piece 33 of the one pressure portion 31 and the other pressure force of the other. Part 3
The second pressing inclined surface 34 'cooperates with each other to release the temporarily fixed state. Since the other construction is the same as that of the first embodiment, the same members are designated by the same reference numerals and detailed description thereof will be omitted.

Further, in the third embodiment of FIG. 9, the handle 29,
Although a rubber 30 for impact absorption is attached to 30, this can be implemented in the first and second embodiments, although not shown. Thereby, the safety of the worker can be achieved.

Next, a fourth embodiment of the present invention shown in FIGS. 12 and 13 will be described. In this embodiment, triangular hose clamp diameter-increasing recesses 37 and 38 are provided on the inner surfaces of the pair of pressing portions 31 and 32, and other configurations are the same as those of the first and second embodiments. It is the same. Although not shown, the third embodiment may have the same configuration. Thus, when it is desired to shift the position of the hose clamp after releasing the temporarily fixed state, the hose clamp can be expanded in diameter and easily displaced.

[0026]

The present invention has the constitution and operation as described above.
The hose clamp can be accurately set at a desired position of the hose by the cooperation of the insertion piece and the pressing inclined surface provided on the pinching portion that is opened and closed by opening and closing the handle. Also, since it is firmly held without wobbling as in the case of a conventional driver etc. and the simple operation of closing the handle is sufficient, smooth and quick release work can be done even in a narrow place or by people unfamiliar with the work. Is what you can do. In addition, by appropriately adjusting the ratio between the length of the handle portion and the length of the pinching portion, it is possible for even a weak operator to easily perform the releasing operation.
Further, since the diameter is increased and the release is performed, the frictional resistance is small, and therefore scratches are less likely to occur. Further, by providing the hose clamp diameter-increasing recesses on the inner surfaces of the pair of pinching portions, it is convenient when the position of the hose clamp is to be shifted after the temporarily fixed state is released.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is an explanatory view of the operation of the first embodiment of the present invention, showing a state before releasing temporary fixing.

FIG. 3 is an explanatory view of the operation of the first embodiment of the present invention, showing a state after the temporary fixing is released.

FIG. 4 is an explanatory view showing a state in which the insertion piece is inserted into the cutout portion of the hose clamp.

FIG. 5 is a front view of a second embodiment of the present invention in which a handle is partially cut away.

FIG. 6 is an explanatory view of the operation of the second embodiment of the present invention, showing a state before releasing the temporary fixing.

FIG. 7 is an explanatory view of the operation of the second embodiment of the present invention, as seen from above the hose clamp.

FIG. 8 is an explanatory view showing a state where the insertion piece is inserted into the cutout portion of the hose clamp.

FIG. 9 is a front view of the third embodiment of the present invention.

10 is a cross-sectional view taken along the line AA in FIG.

FIG. 11 is an explanatory diagram of a usage state of the third embodiment of the present invention.

FIG. 12 is an explanatory diagram of the fourth embodiment of the present invention, which is a modification of the first embodiment.

FIG. 13 is an explanatory diagram of the fourth embodiment of the present invention, which is a modification of the second embodiment.

FIG. 14 is a perspective view of a conventional hose clamp in a temporarily fixed state.

FIG. 15 is an explanatory diagram of a temporary fastening release operation of the conventional hose clamp shown in FIG.

FIG. 16 is a perspective view of another conventional hose clamp in a temporarily fixed state.

17 is a partially enlarged perspective view of the conventional hose clamp shown in FIG.

FIG. 18 is a plan view showing a developed state of the hose clamp previously devised by the present inventor.

FIG. 19 is an enlarged view of a portion A in FIG.

FIG. 20 is a front view of a free state.

21 is an enlarged view of portion B in FIG. 20. FIG.

FIG. 22 is a front view of a temporarily fixed state.

FIG. 23 is an explanatory diagram of a temporary fixing release operation.

FIG. 24 is an explanatory view showing a state where the hose clamp in the temporarily fixed state is set on the hose.

[Explanation of symbols]

 28 shaft 29, 30 pair of handle parts 31, 32 pair of clamping parts 32a guide frame 33 insertion piece 33 'insertion piece 34 pressing inclined surface 34' pressing inclined surface 35 spring 36 shock absorbing rubber 37 hose clamp diameter expansion Recess 38 Recess for hose clamp diameter expansion

Claims (5)

[Claims] 1. A pair of handle portions that open and close with a shaft as a fulcrum, and a pair of pinching portions that open and close by opening and closing the handle portion, one of the pinching portions protruding inwardly. Temporary release of the hose clamp, in which one piece is provided, and the other clamping portion is formed with an inner surface of the other pressing portion, which has a pressing inclined surface with a required angle such that the distance to the insertion piece becomes larger toward the lower part. Tools. 2. A tool for temporarily fixing a hose clamp according to claim 1, wherein a guide frame is integrally formed at a lower end portion of one of the pressing portions so as to sandwich the pressing inclined surface. 3. The tool for temporarily fixing the hose clamp according to claim 1 or 2, wherein a diameter-increasing recess of the hose clamp is provided on the inner surfaces of the pair of pinching portions. 4. A pair of handle portions that open and close about a shaft as a fulcrum, and a pair of pinching portions that open and close by opening and closing the handle portion, and one of the pinching portions that projects inward. A tool for temporarily fixing a hose clamp in which a piece is provided and a pressing inclined surface is formed on the side surface of the other pressing portion. 5. The hose clamp temporary release tool according to claim 4, wherein a hose clamp diameter-increasing recess is provided on the inner surfaces of the pair of pinching portions.