JP2585357Y2 - Hose clip - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called holderless type hose clip which can maintain an expanded state without using a holder.

[0002]

2. Description of the Related Art Conventionally, a hose clip which uses a spring force of itself to tighten a hose is generally designed so that it can be carried in a state of being expanded in advance in consideration of on-site work. It is. As a form for holding the expanded state, a holder type in which both ends of the hose clip are straddled and held by a U-shaped member called a holder, and a locking means which can be detachably engaged with both ends of the hose clip. There is a holderless type which is integrally formed and maintains the expanded state through these engagements. Recently, holder-less types have been increasing because they are advantageous in terms of workability at the site. As an example, 3-86
277 publication.

[0003] In the device disclosed herein, a bridge portion is formed upright at one end of a hose clip, and an operating end and a locking claw inserted through the bridge portion are formed upright at the other end. The diameter of the hose clip is increased by engaging the locking claw with the bridge portion.
Then, when the release is performed, the bridge portion and the operation end portion are gripped with fingers and shifted in the axial direction.

[0004]

However, the above publication has the following problems to be solved. That is, when the hose needs to be replaced, the hose clip must be expanded and deformed to release the tightness to the hose. At this time, the bridge portion and the operation end portion are gripped and brought closer to each other, but in order to maintain the expanded diameter state, the locking claw must be further engaged with the bridge portion. In other words, the operation during this time requires a knob operation along the circumferential direction of the hose clip and a displacement operation in the axial direction, but since both operations are directions orthogonal to each other,
Operation is extremely difficult. In particular, a hose clip that has a spring force so strong that the operator cannot perform the knob operation by hand must rely on special tools, and those that allow such operations in different directions require complicated structures. Is expected, and fabrication is difficult.

[0005] Further, in the above-mentioned publication, since the bridge portion and the operation end portion have complicated shapes, there is also a manufacturing problem that machining is extremely difficult.

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

[0007]

In order to achieve the above object, the structure of the present invention is such that a leaf spring material is bent in an annular shape,
A hose clip capable of clamping a hose or the like in its free state, a groove extending in the circumferential direction while leaving an edge at one end thereof is formed in the center, and a radial direction including the edge is formed. The first knob piece is formed upright in the shape of an arch by being bent, and has a narrow shape on the other end side that passes through the first knob piece and enters the groove, and It is a second knob piece that stands in the radial direction so as to face the knob piece, and a locking means extending substantially along the circumferential direction toward the second knob piece from substantially the center of the upper side of the first knob piece. This locking means is capable of holding the hose clip in an expanded state by engaging and disengaging while being relatively displaced in the axial direction with respect to the other-side knob piece with the knob operation of both knob pieces. And the locking means It is characterized in that the locking position is almost center line in the circumferential direction of the hose clip.

[0008]

When releasing the expanded diameter of the hose clip, the engagement of the locking means is released by displacing both knob pieces in the axial direction. As a result, the hose clip is reduced in diameter by its own spring force and tightens the hose. On the other hand, when the hose clip needs to be replaced again, such as when the hose needs to be replaced, the gripping means engages in the reverse order to the above by grasping the two knob pieces and approaching them. I do. In this case, the locking means is locked with the second knob piece substantially on the center line in the circumferential direction of the hose clip.

[0009]

[Effects of the Invention] The effects of the present invention are as follows. In the present invention, the locking means formed on the first knob piece is extended along the circumferential direction toward the second knob piece, and the locking position of the locking means in the expanded state is set by the hose clip. It was arranged on the center line in the circumferential direction. In the enlarged diameter state, the elasticity of the hose clip acts on the locking means, but since the locking is performed on the center line, the two knob pieces maintain the normal posture without being twisted. Therefore, the hose comes into contact with the hose along the entire circumference, and a good tightening state is obtained.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 1 shows the entire hose clip 1 in an expanded state. Hose clip 1
Is formed by bending a band-shaped leaf spring material into an annular shape. Triangular windows 2 are opened at two places on the peripheral surface so that a uniform clamping force can be applied to the entire circumference of the hose H. It is.

A groove 3 is opened at one end of the hose clip 1 over a predetermined length range, and the end on this side is erected in the radial direction including a part of the groove 3, thereby forming an arch-shaped third end. One knob piece 4 is formed. A release operation projection 5 is integrally formed on substantially one half of the upper edge of the first knob piece 4. On the other hand, a locking claw 6 is provided on the lower edge of the upper portion 4A of the first knob piece 4 at a substantially central portion. 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 a second knob piece 7 described below. The tip of the claw 8 is formed in a hook shape by projecting to one side (the left side in FIG. 3), and the side edge of the claw 8 on the tip side is gradually reduced as it goes backward. Formed with a widening slope, the second
The guide surface 9 guides the engagement operation with the knob piece.

The other end of the hose clip 1 is formed with a tapered narrow portion over substantially the same length range as the range in which the groove 3 is open. It penetrates and enters the groove 3 with substantially the same curvature while maintaining a required gap with respect to both side edges. The distal end of the narrow portion rises in the radial direction to form a second knob piece 7 facing the first knob piece 4. Further, a part of the side edge near the upper end of the second knob piece 7 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. Are formed in the locking recess 10. As shown in FIG. 2, the height position of the upper edge of the second knob piece 7 is substantially the same as the upper edge of the projection 5 of the first knob piece 4 when the hose clip 1 is held in the expanded state. They are aligned. In order to release the expanded state, as shown in FIG. 2 or FIG. 3, the side edge of the projection 5 and the second
The side edge (pressing edge 12) of the locking recess side 10 of the knob piece 7 is gripped.

[0013] The hose clip 1 of the present embodiment configured as described above is carried into the connection site of the hose H in an expanded state.
At the connection work site, the hose clip 1 in the expanded state is inserted into the mouth of the hose H, and fitted into a pipe (not shown) to be connected as it is. And
As described above, one end of the tool 11 is pressed against the side edge of the projection 5 and the other end is pressed against the pressing edge 12 to grip firmly (grip operation in the direction of arrow P in FIG. 3). Thereby, the second
Since the knob 7 is displaced in the direction away from the locking claw 6 and in the axial direction of the hose clip 1, the engagement between the locking claw 6 and the locking recess 10 is released. Thus, hose clip 1
Is reduced in diameter by its own spring force, and the hose H is automatically tightened.

On the other hand, when a situation such as replacement of the hose H occurs, as shown in FIG.
When the user grips and grips with 1, the knob pieces 4, 7 approach each other and the locking claw 6 comes into contact with the locking recess 10. When the gripping operation is further performed in this state, as shown in FIG. 5, the second knob piece 7 retreats to the side (in the axial direction of the hose clip) while being guided by the guide surface 9, and after passing through the guide surface 9, itself. As a result, 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 the present embodiment, 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, only to operate in one direction. Excellent operability, repair and repair of hose H
The replacement work is speeded up. In addition, release of expanded state
When the knob pieces 4, 7 are deformed only in the axial direction during the operation for holding and do not accompany the deformation in the radial direction (height direction), there is no space around the hose clip. It is effective for Further, since the locking means has a very simple configuration, an improvement in the efficiency of manufacturing the hose clip can be expected. Furthermore, since the locking means is formed within the range of the width of the hose clip, the yield is high, which is beneficial from an economical point of view.

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 connected to each other. The locking claw 6 has a symmetrical arrowhead shape so that the locking claw 6 can engage with the locking recess 10 from any side. in this case,
Since the guide surface 9 is also formed symmetrically on the locking claw 6, it is possible to guide the engagement operation from any side. Therefore, according to the second embodiment, an effect that the diameter expanding operation is further facilitated can be obtained. The other configuration is the same as that of the first embodiment.

The present invention can be modified in various ways. For example, the locking means is opposite to the first and second embodiments.
A configuration in which a locking recess is provided on one side of the first knob and a locking claw is provided on one side of the second knob is also conceivable. Also, the projection for the release operation need not be arranged on one half of the first knob piece, but may be arranged only at the end, for example. Any position can be used as long as relative displacement in the direction can be generated.

[Brief description of the drawings]

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

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

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 the diameter expanding operation.

FIG. 5 is a cross-sectional view showing a guide state of an 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 4A ... Upper side 6 ... Locking claw (locking means) 7 ... 2nd knob piece 9 ... Guide surface 10 ... Locking concave part (locking means)

Claims (1)

(57) [Scope of request for utility model registration] 1. A hose clip capable of bending a leaf spring material in an annular shape and clamping a hose or the like in a free state thereof, and extending along a circumferential direction while leaving an edge portion at one end thereof. A groove is formed at the center, and is bent in the radial direction including the edge, so that the first knob piece is formed upright in an arch shape, and the other end side passes through the first knob piece. To form a narrow shape so as to enter into the groove, and
It is a second knob piece that stands in the radial direction so as to face the knob piece, and a locking means extending substantially along the circumferential direction toward the second knob piece from substantially the center of the upper side of the first knob piece. This locking means is capable of holding the hose clip in an expanded state by engaging and disengaging while being relatively displaced in the axial direction with respect to the other-side knob piece with the knob operation of both knob pieces. And a locking position of the locking means is substantially on a center line in a circumferential direction of the hose clip.