JPH0640396Y2 - Hose clamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a hose fastener.

More specifically, the present invention relates to an improvement in the structure around the operation piece of a tool-less manual hose tightening tool that tightens the band by pinching the operation piece with a finger and rotating the band.

[Prior Art] Conventionally, as a hose tightening tool, for example, a band in which engaging portions are formed at a predetermined pitch in the length direction, a housing fixed to one end of the band, and housed inside the housing It is known that a worm gear that meshes with an engaging portion of a band to rotate in a fixed position and an operation piece that is provided in the worm gear and that is formed in a shape having a large projecting area from the housing and that rotates the worm gear are operated. ing.

This conventional hose fastener rotates the worm gear in the housing in a fixed position by rotating the operation piece formed in a shape having a large projecting area from the housing so that it can be easily grasped by fingers, It sends out the engaging parts that mesh with each other and tightens and loosens the band fitted to the hose, which is characterized in that it can be easily operated with fingers without using a tool such as a driver.

[Problems to be Solved by the Invention] In the above-mentioned conventional hose fastener, when used in a location accompanied by movement of the spouting hose such as the discharge port side, the operating portion largely protrudes from the housing. However, there is a problem that it interferes with the moving work, touches another part during the moving work, damages the other part and the operating part, and unexpectedly loosens the tightening.

The present invention has been made in consideration of such problems, and it is an object of the present invention to provide a hose tightening tool having an operation portion having a structure that does not cause a problem even when used in a place involving movement. And

[Means for Solving the Problems] In order to solve the above-mentioned problems, a hose tightening tool according to the present invention has a band in which engaging portions are formed at a predetermined pitch in the length direction and a rear end portion of the band. A fixed housing, a worm gear that is housed inside the housing and rotates in a fixed position by meshing with the engaging portion of the band, and a worm gear that is formed in a shape that has an area that greatly protrudes from the housing and that rotates the worm gear In the hose tightening tool including the operation piece, the worm gear and the operation piece are detachable by a non-circular fitting structure.

[Operation] According to the above-mentioned means, when the band is tightened and loosened, the operating portion can be fitted into the worm gear and the worm gear can be rotated by the non-circular fitting structure. Since it can be detached from the body, the band can be tightened when it is used in a place that requires movement, and the operating part that causes a problem can be removed except when it is necessary to loosen the band. It is possible to solve the problem of providing a hose tightening tool having an operating portion having a structure that does not cause a problem even when used in a sloping place.

[Embodiment] An embodiment of the hose clamp according to the present invention will be described below with reference to the drawings.

In this embodiment, a metal material suitable for being made relatively small is shown.

In this embodiment, the operating portion 4 is detachably attached to one end of the worm gear 3 with respect to the band 1, the housing 2 and the worm gear 3 which are integrally assembled.

The band 1 is formed by forming a metal material such as stainless steel into a thin strip shape, and an engaging portion 12 is formed from a middle position in the length direction to a tip portion 11. The engaging portion 12 is bent and formed by press working or the like into a concavo-convex shape in which asymmetrical trapezoids are continuous at a predetermined pitch.

The housing 2 is formed by caulking a lower member 21 and an upper member 22 formed of a metal material such as stainless steel.
The lower member 21 is formed in a substantially U-shape, and the open side of the U-shape is fixed to the rear end 13 of the band 1. The upper member 22 is formed in a substantially cylindrical shape, and the lower member 21 is provided with a gap through which a portion having the engaging portion 12 of the band 1 wound in an annular shape is inserted and a gap for housing the worm gear 3. It is assembled on the open side. Further, L-shaped bent stoppers 22 'are formed at both ends of the upper member 22 so that the worm gear 3 meshed with the engaging portion 12 of the band 1 rotates in a fixed position in the housing 2. Has become.

The worm gear 3 includes a worm-shaped screw portion 31 that meshes with the engagement portion 12 of the band 1, and a fitting portion 32 formed at one end of the screw portion. The fitting portion 32 is formed into a hexagonal column-shaped small projection coaxial with the screw portion 31 and protrudes from the housing 2. A main body 32a is formed on the end surface of the main body 32a, and a driver groove 32b which is engaged with the tip of the driver is formed. Is equipped with.

The operation portion 4 is a flat plate-shaped portion 41 having a considerably larger area than the housing so that it can be easily grasped by a finger.
And a tubular fitting portion 42 provided at one end of the knob 41. The fitting portion 42 has a hexagonal groove-shaped fitting hole 42 ′ that can be fitted into the main body 32 a of the fitting portion 32 of the worm gear 3.

According to such an embodiment, when the band 1 is tightened and loosened, the operating portion 4 is brought close to the worm gear 3 in the axial direction, and the fitting hole 42 'of the fitting portion 42 of the operating portion 4 is inserted into the worm gear 3. The main body 32a of the fitting portion 32 of the
Pinch with your finger to rotate. Due to this rotation, the fitting hole 42 'of the fitting portion 42 of the operation portion 4 and the main body 32a of the fitting portion 32 of the worm gear 3 are fitted in a non-circular fitting structure,
The worm gear 3 that can rotate the screw portion 31 of the worm gear 3 and rotates in place within the upper member 22 of the housing 2
The engaging portion 12 of the band 1 meshing with the threaded portion 31 of the band 1 is delivered in the circumferential direction of the wound ring to tighten and loosen the band 1.

Further, except when tightening and loosening the band 1, the operating portion 4 is separated from the worm gear 3 in the axial direction, and the fitting hole 42 'of the fitting portion 42 of the operating portion 4 is fitted into the fitting portion 32 of the worm gear 3.
The operating portion 4 can be removed by removing it from the main body 32a.

For this reason, even when it is used in a place that involves movement, if the operation portion 4 is removed and removed, it may interfere with the movement work or touch other portions during the movement work to operate the other portions. There is no damage to the parts or accidental loosening of the tightening.

The operation section 4 can be attached to and detached from the worm gear 3 by an approach and a separation operation of the worm gear 3 in the axial direction.
Very easy to put on and take off.

Further, since the driver groove 32b is provided on the end surface of the main body 32a of the fitting portion 32 of the worm gear 3, even if the operating section 4 is lost during the removal of the operating section 4, the band can be removed by using the driver. Can be tightened and loosened.

As described above, in addition to the illustrated embodiment, the worm gear 3 and the operating portion 4 may be fitted in a non-circular shape other than the hexagonal shape.

Further, the fitting portions 32 are attached to both ends of the screw portion 31 of the worm gear 3.
In this embodiment, the operating portions 4 can be fitted to the fitting portions 32 on either side of both ends, and the two operating portions 4 can be fitted to the fitting portions 32 on both sides of both ends at the same time. It is also possible. According to this embodiment, it is easy to fit the operation portion 4 when it is formed to be extremely small or when there are obstacles around it (the fitting side can be selected), and tightening when it is formed to be extremely large There is an advantage that the operating force of the operating portion 4 for relaxation can be strengthened (each of the two operating portions 4 can be put on one hand and operated by both hands).

The housing shown in FIG. 1 is composed of upper and lower members, but this housing may be composed of a single member as shown in FIG.

[Advantages of the Invention] As described above, the hose tightening tool according to the present invention can remove and remove the operating portion, so that even if it is used in a place accompanied by movement, it hinders the movement work. There is an effect that is not accompanied by problems such as. In addition, this effect makes the moving work efficient without disturbing the moving work, improves durability without touching other parts during operation, and does not damage other parts or operating parts. The tightening does not loosen and the reliability and safety are secured.

Further, since the worm gear and the operation piece have a non-circular fitting structure, and the operation portion can be attached and detached by moving the operation portion close to and away from the worm gear in the axial direction, there is an effect that the attachment and detachment operation is easy.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view and FIG. 2 is a front view of a tightening operation state. 1 ... Band 2 ... Housing 2 ... Worm gear 4 ... Operating piece

Claims (1)

[Scope of utility model registration request] 1. A band in which engaging portions are formed at a predetermined pitch in a length direction, a housing fixed to a rear end portion of the band, and a housing which is housed in the housing and meshes with the engaging portion of the band. A hose clamp having a worm gear that rotates in position and an operation piece that is formed in a shape having a large projecting area from a housing and that is provided on the worm gear and that rotates the worm gear. A hose tightening tool characterized by being removable by the fitting structure of.