JPH0583580U - Hose clip - Google Patents

Abstract

(57) [Summary] [Purpose] A simple structure facilitates the operation from the reduced diameter state to the expanded diameter state. [Constitution] An arch-shaped first portion on one end side of the hose clip 1
The knob piece 4 is formed, and the second knob piece 7 that is inserted into the first knob piece 4 is formed on the other end side. Then, a locking claw 6 or an engaging recess 10 for holding the hose clip 1 in a diameter-expanded state by engaging with each other is formed on both the knob pieces 4, 7, and the both knob pieces 4, 7 are The hose clip 1 can be disengaged by performing a deforming operation such as shifting in the axial direction. Further, by forming the guide surface 9 on the locking claw 6, when the two knob pieces 4 and 7 are approached to move the hose clip 1 from the reduced diameter state to the expanded diameter state, The engaging recess 10 is engaged while receiving the guide of the guide surface 9, and the expanded diameter state is maintained again.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a so-called holderless type hose clip that can maintain the expanded state without using a holder.

[0002]

[Prior Art]

 Conventionally, a hose clip that uses its own spring force to tighten the hose has generally been designed so that it can be carried in with the diameter expanded in advance in consideration of site work. As a type of holding the expanded diameter state, a holder type in which both ends of the hose clip are straddled and held by U-shaped members called holders, and a locking means that is detachable from each other at both ends of the hose clip. There is a holderless type in which the diametrically expanded state is maintained through the engagement of these. In recent years, holder-less types have been increasing because they are advantageous in terms of workability on site. As an example thereof, there is one disclosed in Japanese Utility Model Laid-Open No. 3-86277.

In the one disclosed here, a bridge portion is formed upright on one end side of a hose clip, and an operation end portion and a locking claw that are inserted into the bridge portion are formed upright on the other end side. By engaging the locking claws with the bridge portion, the expanded state of the hose clip is maintained. Then, the release is performed by grasping the bridge portion and the operation end portion with fingers and shifting them in the axial direction.

[0004]

[Problems to be solved by the device]

 However, the above publications have the following problems to be solved. That is, if the hose needs to be replaced, the hose clip must be expanded and deformed to release the tightening to the hose. At this time, the bridge portion and the operating end portion are grasped and brought close to each other, but the retaining claw must be further engaged with the bridge portion to maintain the expanded diameter state. In other words, as the operation during this period, a knob operation along the circumferential direction of the hose clip and an axial displacement operation are required, but both operations are orthogonal to each other, so the operation is extremely difficult. . In particular, with a hose clip that has a spring force that is too strong for the operator to manually operate the knob, a special tool must be used, and the structure that allows such operations in different directions is complicated. It is expected that it will become difficult to manufacture.

Further, the above-mentioned publication has a problem in manufacturing that the processing is extremely difficult because the bridge portion and the operation end portion have complicated shapes.

The present invention has been devised in view of the above circumstances, and an object thereof is to make a hose clip that can be easily operated from a reduced diameter state to an enlarged diameter state and can be easily manufactured. Is to provide.

[0007]

[Means for Solving the Problems]

 The configuration of the present invention for achieving the above object is such that a leaf spring material is bent in an annular shape, and a hose or the like can be clamped when the diameter is reduced in a free state, and one end of the leaf spring material is radially attached. A first knob piece that stands up in an arch shape is formed, and the arch portion of the first knob piece is inserted into the other end side with almost the same curvature, and then it stands up in the radial direction and can face the first knob piece. In order to hold the hose clip in the expanded state in the hose clip formed with the second knob piece, the both knob pieces are detachably engaged by relative displacement of the hose clip in the axial direction. A locking means for mating is formed, and this locking means guides the engaging operation of the locking means by operating the knobs of both knobs when the hose clip is moved from the reduced diameter state to the expanded diameter state. A possible inner surface is formed It is characterized in that there.

[0008]

[Action]

 When releasing the expanded diameter state of the hose clip, the engagement of the locking means is released by displacing both the knob pieces in the axial direction. As a result, the hose clip contracts due to its own spring force and tightens the hose. On the other hand, when returning the hose clip to the expanded state again when it is necessary to replace the hose, hold both knobs and bring them closer. By this operation, the locking means are guided by the guide surfaces, so that the two knob pieces are displaced relative to each other in the axial direction of the hose clip. As a result, the engaging operations of the both locking means are performed. In other words, the expanded state is maintained again only by operating the knob along the circumferential direction of the hose clip.

[0009]

[Effect of the device]

 The effects of the present invention are as follows. When the hose needs to be replaced, etc., when the clip is expanded again, it can be operated by a simple knob operation, that is, one-way operation, so it has excellent operability. Therefore, there is an advantage that a commercially available tool can be used even with a hose clip having a strong spring force. Further, both locking means of the hose clip are shaped so that they can be engaged by displacement in the axial direction, and have a simple structure in which at least one of them is provided with a guide surface, so that manufacturing is easy.

[0010]

【Example】

 Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. FIG. 1 shows the entire hose clip 1 in the expanded state. The hose clip 1 is made by bending a strip-shaped leaf spring material into an annular shape. Triangular windows 2 are opened at two places on the peripheral surface thereof, and a uniform clamping force is applied to the entire circumference of the hose H. I am able to do it.

A groove portion 3 is opened over a predetermined length range on one end side of the hose clip 1, and an end portion on this side including a part of the groove portion 3 is erected in a radial direction, whereby an arch shape is formed. The first knob piece 4 is formed. Further, a protrusion 5 for releasing operation is integrally formed on almost one side half of the upper edge of the first knob piece 4. On the other hand, on the lower edge of the first knob piece 4, a locking claw 6 is provided at a position slightly displaced from the center (a position displaced rightward in FIG. 3). The locking claw 6 is bent at a right angle from the lower edge of the first knob piece 4 and extends substantially horizontally toward the second knob piece 7 described below. The tip portion of the claw portion 8 is formed in a hook shape and protrudes to one side (the left side in FIG. 3), and the side edge of the claw portion 8 on the tip side gradually becomes rearward. The guide surface 9 is formed with an inclination that widens and guides the engaging operation with the second knob piece.

On the other end side of the hose clip 1, a tapered narrow portion is formed over substantially the same length range as the range in which the groove portion 3 is opened, and the tip end side of the hose clip 1 has a first knob piece 4 It passes through and has a required clearance with respect to both side edges of the groove 3 and enters with substantially the same curvature. The tip of this narrow portion is a second knob piece 7 that stands upright in the radial direction and faces the first knob piece 4. In addition, a part of the side edge of the second knob piece 7 near the upper end and facing the locking claw 6 is cut out in a U shape, and together with the locking claw 6, the locking means of the present invention. Is the locking recess 10 that constitutes the. As shown in FIG. 2, the height position of the upper edge of the second knob piece 7 is the same as the upper edge of the protrusion 5 of the first knob piece 4 when the hose clip 1 is held in the expanded state. They are arranged almost in the same line. When releasing the expanded diameter state, as shown in FIG. 2 or 3, the side edge of the projection 5 and the side of the locking recess of the second knob piece 7 with the commercially available tool 11 (the drawing shows pliers) are used. 10 side edges (pressing edges 12) will be respectively gripped.

The hose clip 1 of the present example configured as described above is carried into the connection site of the hose H in the expanded state. At the connection work site, the expanded hose clip 1 is inserted into the mouth of the hose H, and then fitted into a pipe (not shown) to be connected as it is. Then, as described above, one end of the tool 11 is applied to the side edge of the protrusion 5 and the other end is applied to the pressing edge 12 and is strongly gripped (grip operation in the direction of arrow P in FIG. 3). As a result, the second knob piece 7 is displaced in the direction away from the locking claw 6 and in the axial direction of the hose clip 1, so that the engagement between the locking claw 6 and the locking recess 10 is released. Thus, the hose clip 1 is reduced in diameter by its own spring force, and the hose H is automatically tightened.

On the other hand, when the hose H needs to be replaced or the like, as shown in FIG. 4, when both the knob pieces 4 and 7 are gripped by the tool 11, the two knob pieces 4 and 7 are mutually locked. The locking claw 6 comes into contact with the locking recess 10 by approaching. When the grip operation is further performed as it is, as shown in FIG. 5, the second knob piece 7 is retracted laterally (in the axial direction of the hose clip) while being guided by the guide surface 9, and after passing through the guide surface 9, As a result of being returned by its own elastic force, the locking claw 6 engages with the locking recess 10. Thus, since the hose clip is held in the expanded state again, it is possible to immediately fit the newly replaced hose H.

As described above, according to this example, when the hose clip is held in the expanded state again, it is sufficient to simply operate the knob pieces 4 and 7, that is, the operation in one direction. Since it is good, the operability is excellent and the repair / replacement work of the hose H can be speeded up. Also, during the operation for releasing / holding the expanded state, both knob pieces 4, 7 are only deformed in the axial direction, and are not deformed in the radial direction (height direction). This is effective when there is not enough space. Further, since the locking means has an extremely simple structure, it is expected that the manufacturing efficiency of the hose clip will be improved. Furthermore, since the locking means is formed within the width of the hose clip, it has a high yield and is economically advantageous.

FIG. 6 shows a second embodiment of the present invention. In the second embodiment, the locking recesses 10 are arranged on both sides of the second knob piece 7, and the claw portions 8 of the locking claw 6 are arranged. The locking claw 6 has a symmetrical arrow bar shape so that the locking claw 6 can be engaged with the locking recess 10 from any side. In this case, since the guide surface 9 is also formed symmetrically with the locking claw 6, it is possible to guide the engaging operation from either side. Therefore, according to the second embodiment, the effect of further facilitating the diameter expansion operation can be obtained. The rest of the configuration is the same as in the first embodiment.

The present invention can be modified in various ways. For example, regarding the locking means, contrary to the first and second embodiments, a locking recess is provided on one side of the first knob and the other side of the second knob is provided. A configuration in which a locking claw is provided on the is also conceivable. Further, the projection for releasing operation does not need to be arranged on one half of the first knob piece, but may be arranged only at the end, for example, by the operation of the tool, the hose clip should be attached to both knob pieces. The position thereof does not matter as long as a relative displacement in the axial direction can be generated.

[Brief description of drawings]

FIG. 1 is a perspective view showing a hose clip according to a first embodiment.

FIG. 2 is a side view showing a main part of a release operation status.

FIG. 3 is a plan sectional view showing a main part of a release operation situation.

FIG. 4 is a front view showing a main part of a diameter expansion operation.

FIG. 5 is a cross-sectional view showing a guide state of engagement operation.

FIG. 6 is a perspective view showing a main part of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Hose clip 4 ... 1st knob piece 6 ... Locking claw (locking means) 7 ... 2nd locking claw 9 ... Guide surface 10 ... Locking recess (locking means)

Claims (1)

[Scope of utility model registration request] 1. A leaf spring material is bent in an annular shape, and a hose or the like can be clamped when the diameter is reduced to a free state, and a first knob that is erected in a radial direction on one end side thereof is provided. A piece is formed, and at the other end side, an arch portion of the first knob piece is inserted with substantially the same curvature, and then a second knob piece that stands up in the radial direction and can face the first knob piece is formed. In the hose clip, in order to hold the hose clip in a diameter-expanded state, both knob pieces are formed with locking means that is releasably engaged by relative displacement of the hose clip in the axial direction.
The locking means is formed with a guide surface capable of guiding the engaging operation of the locking means by a knob operation of both knob pieces when shifting the hose clip from the reduced diameter state to the expanded diameter state. And hose clip.