JPH0587389U - Hose clip - Google Patents

Abstract

(57) [Summary] [Purpose] The function to maintain the expanded state is not lost even after the hose connection work, and the hose can be positioned together. [Structure] A holding member 5 attached to one side of a knob piece 3 engages a knob piece 4 on the side opposite to the side on which the holding member 5 is attached, and holds a hose clip C in an expanded state. Since the diameter holding portion 5a and the positioning portion 5b that prevents axial displacement of the hose H by elastically contacting the outer peripheral surface of the hose H are integrally formed, the hose clip C has a diameter expansion holding function and a positioning function. Together with
Moreover, these two functions are not lost even after the hose connection work.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a hose clip. And, in particular, the present invention relates to a hose clip of a type capable of positioning the hose and maintaining the expanded state.

[0002]

[Prior Art]

 The hose clip generally uses its own spring property to tighten the hose. Therefore, in the natural state, the diameter is the smallest, and if it is delivered to the site as it is, the diameter expansion operation must be performed on the spot, which deteriorates workability. Therefore, it is desired that the hose be carried in to the site in a diameter-expanded state so that it can be fitted into the hose as it is, and many hose clips have been developed to achieve this (as an example, Jitsuko Sho 52-14511). No.

[0003]

[Problems to be solved by the device]

 However, since such a hose clip is loosely fitted to the hose, the attachment position to the hose is likely to be displaced. Therefore, when attempting to release the expanded state of the hose clip, the hose clip may have already been displaced from the proper tightening position, and it is often necessary to correct the position before the tightening operation. This operation reduces the efficiency of the hose connection work, and when the hose clip is shifted to perform the correction operation, the hose clip may be attached diagonally to the hose. This problem of diagonal assembly can be thought of as if the expanded state of the hose clip is released and then the hose clip returns to its contracted state, the hose clip automatically returns to its normal position and is automatically resolved. .. However, especially in the case of a hose clip with a large diameter, it is not uncommon for the posture to be corrected so that it is still tilted after tightening. In that case, the tightening force on the hose becomes uneven, and the sealing property is deteriorated, which may cause liquid leakage. In order to solve this problem, it is not unthinkable to position the hose clip on the hose with the staple of the stapler.

However, such a binding needle method has the following problems. First, since the binding needle is pierced into the hose, the hose may be damaged, and depending on the wall thickness of the hose, a hole penetrating the hose may be opened and the sealing performance may be significantly impaired.

Secondly, the hose clip may be deformed during operation by the stapler. In this case, since the roundness of the tightened portion of the hose clip is impaired, the tightening force with respect to the hose becomes uneven, and even in this case, the sealability is impaired.

In addition, as is the case with the above-mentioned Japanese Utility Model Publication No. 52-14511, in the case of a holder type as a means for holding the hose clip in the expanded state, the holder is detached when the hose is connected. However, if they are scattered at the work site, it will take time to collect them. Furthermore, even if the hose needs to be repaired or replaced and the hose clip must be replaced again, the hose clip without the holder cannot hold the expanded diameter again, so Fitting work becomes difficult. In particular, when expanding the diameter of a hose clip used for a hose with a large diameter, even if the knob is operated from the natural state, it cannot be pinched with general tools such as pliers, and a dedicated tool is required. Becomes

The present invention has been developed in view of such circumstances, and an object thereof is to maintain the function of holding the expanded diameter state even after the hose is connected and to perform positioning with respect to the hose together. It is to provide a hose clip that can.

[0008]

[Means for Solving the Problems]

 To achieve the above object, the structure of the present invention comprises a tightening ring part bent in an annular shape for tightening the mouth part of a hose, and a pair of knobs formed upright at both ends of the tightening ring part. In a hose clip comprising an operable knob piece and a holding member attached to one side of the knob piece, the holding member is provided with respect to the knob piece on the side opposite to the side on which the holding member is attached. A diameter expansion holding part that engages with each other in a detachable manner to hold the tightening ring part in a diameter expansion state, and an axial direction with respect to the hose by extending to the side opposite to the diameter expansion holding part and making elastic contact with the outer peripheral surface of the hose. It is characterized by having a positioning portion for preventing the slippage to.

[0009]

[Action]

 The expanded diameter holding portion of the hose clip holds the two knob pieces and holds the expanded diameter state. Then, in this state, the hose is loosely inserted. At this time, the positioning portion makes elastic contact with the outer peripheral surface of the hose, so that the displacement of the hose clip with respect to the hose is restricted. When the hose needs to be repaired or replaced because the expanding member and the positioning part are integrally provided on the holding member and the expanding function is not lost even after the hose connection work. In addition, the diameter can be expanded again.

[0010]

[Effect of the device]

 The effects of the present invention are as follows. Since the displacement of the hose clip is effectively avoided during the hose connection work, the work can be performed smoothly without the need to correct the displacement. Also, unlike the conventional method, releasing the expanded state is not a method of removing the holder, so the situation where the holder is scattered at the work site is eliminated. Furthermore, since the hose clip can be expanded again after connecting the hose, it is easy to fit a new hose when repairing or replacing the hose.

[0011]

【Example】

 Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. The hose clip C is constructed by assembling the holding member 5 to the clip body 1.

The clip body 1 is made of a strip-shaped leaf spring material, and is bent in an annular shape in conformity with the outer periphery of the hose H to be tightened to form a tightening ring portion 1a. A triangular window 2 (not shown) is opened on the outer peripheral surface of the tightening ring portion 1a, thereby improving the roundness of the tightening ring portion 1a. The description is omitted. Further, one end side of the tightening ring portion 1a is narrowed over a predetermined length range from the tip end, and the tip end portion stands up at a substantially right angle to form a first knob piece 3. A substantially central portion of the first knob piece 3 serves as a neck portion 3a for mounting the holding member 5 as shown in FIG.

On the other hand, the receiving groove 6 is opened in the other end portion over a predetermined range so as to receive the above-mentioned narrow portion and to form the same peripheral surface as this. There is. Further, from the middle of the portion where the receiving groove 6 is provided, it stands up outward in an arch shape to form a second knob piece 4 that faces the first knob piece 3 at substantially the same height. A temporary fixing claw 7 is hung down at the center of the upper edge of the second knob piece 4, and the clip body 1 is expanded in diameter by being hooked by a diameter expansion holding portion 5a of a holding member 5 which will be described later. It is supposed to be retained.

Next, the holding member 5 will be described. In this embodiment, the holding member 5 is made of wire made of a spring material. The holding member 5 is attached to the neck portion 3a of the first knob piece 3 such that the holding member 5 intersects the front side and the back side and is wound around the neck portion 3a. The holding member 5 further extends horizontally and in a loop shape to the second knob piece 4 to form a diameter-enlarged holding portion 5a which can be hung and removed from the temporary fixing claw 7.

The holding member 5 extends to the side opposite to the expanded diameter holding portion 5a to form a positioning portion 5b. The positioning portion 5b first extends horizontally from the neck portion 3a and then bends downward and its tip is a free end. Therefore, the positioning portion 5b should be curved upward so as not to damage the outer peripheral surface of the hose H. Is bent. As shown in FIG. 2, this portion enters the inside of the hose clip C through the receiving groove 6 when the hose clip C is expanded, and when the hose H is inserted at this time, the hose H is inserted. It makes elastic contact with the outer peripheral surface of the hose and serves as a position for restricting the stopper of the hose clip C from the hose H (see FIG. 3).

By the way, as shown in FIG. 7, the portion of the neck portion 3a around which the holding member 5 is wound is cut out from both left and right sides. Each of them is formed in a lateral U shape. The action of this point will be described in detail later, but in a normal state as shown in FIG. 1, a device for holding the winding portion of the holding member 5 substantially vertically with respect to the first knob piece 3. Is.

The hose clip C of this example is configured as described above. In order to hold the clip body 1 in the expanded state, the knob pieces 3 and 4 are brought close to each other (this is done by a dedicated device (not shown) or a tool), and the expanded holding portion 5a of the holding member 5 is temporarily fixed. Hang on. As a result, the hose clip C is held in the expanded state as shown in FIG.

The hose clip C is conveyed in this expanded state, but even if the clips collide with each other during the conveyance or if they are violently violated, the temporary fixing claws 7 are engaged with each other without care. It will not be released. That is, when an external force that causes the holding member 5 to fluctuate up and down is applied, the portion wound around the neck 3a is a slope forming the neck 3a as shown by the one-dot chain line and the two-dot chain line in FIG. However, as a result of this displacement, the portion wound around the neck portion 3a is forcibly expanded against the spring force of the holding member 5 itself. That is, the holding member 5 is biased by its own spring force in the direction of returning to the central position of the neck portion 3a, and when the external force is released, the holding member 5 is automatically moved to the thinnest portion (original position) of the neck portion 3a. Return to. As described above, when the holding member 5 tilts, the restoring force is automatically applied. Therefore, even when the holding member 5 receives collisions, vibrations, etc. during the conveyance, the temporary fixing state to the temporary fixing claw 7 is maintained as it is. That's why.

Next, the hose clip C is inserted into the hose H (see FIG. 4). As shown in the figure, insert the hose clip C into the hose H at an angle to the hose H, insert it from the holding member 5 side first, and push up the lower surface side of the hose H with your finger on the opposite side. It is good to insert it. After that, the hose H is moved to a position (planned tightening position) apart from the end face by a predetermined distance. By being inserted into the hose H, the positioning portion 5b of the holding member 5 is pushed up by the outer peripheral surface of the hose H, and is forcibly bent and deformed upward against the spring force. Therefore, the elastic reaction force acts on the hose H, and holds the hose clip C at the scheduled tightening position. The hose H is brought into the work site with the hose clip C attached in this way, and is directly inserted into the pipe P. Conventionally, the displacement of the hose clip C is apt to occur during this insertion work, but in this embodiment, the axial displacement of the hose clip C is restricted by the positioning portion 5b. Work can be performed smoothly without the need to correct the positional deviation. Of course, since the hose H is not damaged by the conventional binding needle, the sealing property is maintained as it is.

Since the holding member 5 is lifted up on the side of the positioning portion 5b with the insertion into the hose H, on the contrary, the holding member 5 is lowered on the side of the expanded diameter holding portion 5a, that is, the engagement with the temporary fixing claw 7 is released. However, at this time, the spring force of the hose clip C holds a sufficient catching force on the temporary fixing claw 7, so that the expanded diameter state is maintained regardless of the insertion into the hose H. It will not be canceled.

The tightening work on the pipe P is performed by gripping the two knob pieces 3 and 4 with a general tool T (pliers). That is, when both the knob pieces 3 and 4 approach each other by this operation, the enlarged diameter holding portion 5a is separated from the temporary fixing claw 7 in the horizontal direction. When the expanded diameter holding portion 5a is separated from the temporary holding claw 7 in this manner, the positioning portion 5b side is pushed up by the hose H, and the expanded diameter holding portion 5a side is temporarily held by the portion wound around the neck 3a as a fulcrum. Evacuate below. In this state, if the tool T is slowly opened, the hose clip C contracts due to its own spring force and finally the hose H is tightened. In order to perform the retracting operation of the expanded diameter holding portion 5a more reliably, the tip of the positioning portion 5b should be pressed against the hose H 1 when the knob pieces 3 and 4 are picked up by the tool T. Good.

As described above, in the case of the present embodiment, the posture of the holding member 5 is corrected so that the expanded diameter holding portion 5a and the temporary fixing claw 7 are normally engaged. It will not be released by. On the other hand, in order to release the engagement with the temporary fixing claw 7, the hose H is required to be inserted, so that the expanded state is ideally held / released. In addition, since the tightening operation of the hose H is completed by only slightly operating the knob pieces 3 and 4, the operation can be performed easily and quickly. Since the holding member 5 remains attached to the hose H even after the hose H is tightened, a large number of holders are scattered at the work site and it is not time-consuming to collect the holders as in the conventional case. Further, as an effect that the holding member 5 is left as it is, even when the hose H needs to be repaired or replaced, the hose clip C can be held in the expanded state again. Therefore, the work of replacing the hose clip C with the new hose H becomes easy. In particular, when the hose clip C has a large diameter that expands to the extent that it cannot be picked up with ordinary tools when it is removed from the hose and returned to the free state, the expanded state is re-expanded like the hose clip of this example. The significance of being able to obtain is great.

Further, in the case of the type in which the holder is pulled out to release the expanded diameter state (Actual Publication No. 52-145111), a considerable amount of force is required to pull it out, so a large dedicated tool is often used. Also, since the hose clip C is rapidly restored at the same time as it is pulled out, there is a fear of the operator, and the hose clip C may be assembled obliquely to the hose H due to the rapid return movement. (Especially for large diameter hose clips). Oblique assembly causes a problem that the sealing property is deteriorated.

In this respect, since the hose clip C of the present embodiment can use a general tool, it is advantageous for work in a narrow engine room, and the tool T guides to such an extent that the hose clip C can be restored. As a result, it is possible to restore it relatively gently, and thus it is possible to avoid the situation where diagonal assembly is required and correction work is required to the correct posture.

In this embodiment, the neck portion 3a of the hose clip C is devised to correct the posture of the holding member 5, but the neck portion 3a may be wound so as not to fall off. For example, the neck portion 3a may be cut in a U shape from both sides, and the holding member may be simply wound. Further, the holding member 5 is not limited to the one formed of a wire, but may be formed of a leaf spring.

[Brief description of drawings]

FIG. 1 is a perspective view of a hose clip.

[Figure 2] Front view of hose clip

FIG. 3 is a sectional view showing a state where the hose is temporarily fixed.

FIG. 4 is a side view showing the work of inserting the hose.

FIG. 5 is a front view showing a releasing operation for the temporary fixing claw.

FIG. 6 is a front view showing a tightened state of the hose.

FIG. 7 is an enlarged view showing the vicinity of the neck.

[Explanation of symbols]

 1 ... Clip body 1a ... Tightening ring part 3,4 ... Knob piece 5 ... Holding member 5a ... Diameter expansion holding part 5b ... Positioning part 7 ... Temporary stop claw C ... Hose clip H ... Hose

Claims (1)

[Scope of utility model registration request] 1. A tightening ring portion bent in an annular shape for tightening the mouth portion of a hose, a pair of knob-operable knob pieces formed upright at both ends of the tightening ring portion, and this knob piece. A holding member attached to one side of the holding member, wherein the holding member engages detachably with a knob piece on the side opposite to the side where the holding member is attached, and the tightening ring portion. Has a diametrical expansion holding portion for holding the diametrically expanded state, and a positioning portion for extending in a direction opposite to the diametrical expansion holding portion and elastically contacting the outer peripheral surface of the hose to prevent axial displacement of the hose. And hose clip.