JP2009019727A - Retainer of hose clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hose clamp temporarily retaining a hose at an end part. <P>SOLUTION: The retainer temporarily retains the hose clamp in an expanded state at the end part of the hose H, and is provided with a main body part 1 installing a clamping ring included in the hose clamp, an arm part 2 provided with connecting to the main body part 1 in such a manner that the same can open and close, and a lock means 7, 10 locking the arm part 2 in a close state to the main body part 1 side. The arm part 2 includes a base plate 4 provided with connecting to the main body part 1 via a hinge 3, and a holding piece 5 provided with connecting to the base plate 4 and holding an outer circumference surface of the hose H. Consequently, the arm part 2 including a holding piece 5 holding the outer circumference surface of the hose H can be put in an open state in relation to the main body part 1 via the hinge 3, and the arm part is effectively prevented from being an obstacle during external fitting work of the hose H end part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a holder that temporarily holds a hose clamp in an expanded state at a normal hose attachment position.

  Although this type of conventional holder is not specifically shown, it is an integrally molded product of synthetic resin, and is externally fitted to a semicircular arc mounting portion for mounting a hose clamp in an expanded state and an end portion of the hose. The former mounting part has a triangular shape formed on the inner peripheral surface of the hose clamp tightening ring and the positioning piece that abuts the end face of the hose. A locking projection for locking to the window is projected, and the outer fitting portion of the latter forms a split groove at the top of the arc shape and has a plurality of biting claws that bite into the outer peripheral surface of the hose on the inner peripheral surface. It is configured to project toward the center direction at an interval (see, for example, Patent Document 1).

  In actual use, when the hose clamp in an expanded state is mounted in the semicircular arc mounting portion of the holder, the locking protrusion is locked to the triangular window of the hose clamp tightening ring, and the hose The clamp is placed in a state in which the rotation stopper and the positional deviation in the axial direction are restricted with respect to the mounting portion. Therefore, this time, in this state, until the positioning piece of the mounting portion comes into contact with the end surface of the hose, when the outer fitting portion of the holder is fitted to the end portion of the hose, this causes the hose clamp to hold the holding tool. Are temporarily held at the regular mounting position of the hose end, and at the same time, the multiple biting claws protruding from the outer fitting part bite into the outer peripheral surface of the hose end, so the hose clamp is detented against the hose. Placed in a closed state.

Therefore, after obtaining the state in which the end of the pipe is fitted in the end of the hose and releasing the expanded state of the hose clamp, the tightening ring of the hose clamp is thereby compressed by its own restoring force. The hose is clamped and fixed to the pipe. For this reason, the hose clamp can automatically tighten and fix the hose at the normal mounting position of the hose, so that an even tightened and fixed state is always guaranteed.
JP 2000-249274 A

  However, under the conventional holder, for example, a split groove is formed at the top of the outer fitting portion that has an arc shape, and the outer fitting portion can be expanded and deformed. When the outer fitting portion of the holder is fitted on the end portion of the hose, the presence of the plurality of biting claws is present. There was a dislike that the work of fitting out would be difficult for people to get in the way.

  The present invention was developed in order to effectively solve the problems of such a conventional holder, and the invention according to claim 1 temporarily holds the hose clamp in an expanded state at the end of the hose. A main body part to which a fastening ring included in the hose clamp is mounted, an arm part that is connected to the main body part so as to be openable and closable, and a lock that locks the arm part in a closed state to the main body part side. And the arm part has a substrate connected to the main body via a hinge and a holding piece that is connected to the substrate and holds the outer peripheral surface of the hose. .

  The invention according to claim 2 is based on the premise of claim 1, and the locking means includes a first lock claw provided on the main body side and a first lock hole provided on the substrate side of the arm part, An operation piece is provided on the front end side of the substrate in the vicinity of the first lock hole.

  According to a third aspect of the present invention, on the premise of the first and second aspects, a positioning piece that abuts the end surface of the hose is provided on the main body portion, and a positioning piece that abuts the holding portion of the arm portion and the end surface of the hose. Is provided.

  According to a fourth aspect of the present invention, on the premise of the second aspect, the second lock claw is provided closer to the hinge than the first lock claw on the main body side, and the second lock claw is engaged with the board side of the arm portion. The second lock hole is provided, and the tip of the second lock claw is provided with a hook shape that curves in the hinge direction.

  According to a fifth aspect of the invention, on the premise of the first to fourth aspects, the holding piece connected to the base plate of the arm portion is directed toward the center of the hose in the closed state of the arm portion on the base end side. It is characterized in that it has a circular arc shape that once stands up and holds the outer peripheral surface of the hose from there toward the free end side.

  According to a sixth aspect of the present invention, on the premise of the first to fifth aspects, the main body portion is composed of a wide portion and a narrow portion. When the arm portion is in the closed state, the holding piece of the arm portion is the width. It is located in a narrow part.

  Therefore, in the invention according to claim 1, a state in which a hose clamp tightening ring is attached to the main body of the holder is obtained, and the hose clamp is fitted around the end of the hose together with the holder. Sometimes, if the arm part having the holding piece for holding the outer peripheral surface of the hose is placed in an open state with respect to the main body part via the hinge, the presence of the arm part is completely disturbed unlike the conventional case. This eliminates the need for external fitting work. However, when temporarily holding the hose clamp in the normal mounting position of the hose end via the holder, if the arm substrate is closed to the main body by the locking means in the closed state via the hinge, The hose clamp is temporarily held against the end of the hose.

  In the invention according to claim 2, the operation piece provided on the tip end side of the substrate in the vicinity of the first lock hole is picked, and the first lock claw on the main body side is provided on the substrate side of the arm portion. Therefore, the arm portion can be reliably and easily locked to the main body portion side.

  In the invention according to claim 3, when the hose clamp is fitted around the end of the hose together with the holder, the positioning pieces provided on the holding part of the main body part and the arm part are the end faces of the hose. Therefore, the hose clamp can be reliably positioned at the normal mounting position of the hose end.

  In the invention according to claim 4, the first lock claw and the second lock claw on the main body side are respectively engaged with the corresponding first and second lock holes provided on the substrate side of the arm part. Therefore, even if the hinge breaks, the first lock claw and the second lock claw cooperate to effectively prevent the arm portion from falling off. Further, the second lock claw is provided closer to the hinge than the first lock claw, and the tip portion is provided with a hook shape that curves in the hinge direction. Since the lock hole is firmly engaged, even if the hinge breaks, the arm portion can be more reliably prevented from falling off.

  In the invention according to claim 5, since the outer peripheral surface of the hose can be clamped toward the center direction on the proximal end side where the holding piece rises, the hose clamp is prevented from rotating in the axial direction. With the state where the positional deviation is regulated, it is surely temporarily held at the end of the hose.

  In the invention of claim 6, the main body portion is composed of a wide portion and a narrow portion, and in the closed state of the arm portion, the holding piece of the arm portion is located on the narrow portion side, The holder itself can be made compact.

  The present invention presupposes a holding tool for temporarily holding a hose clamp in an expanded state at the end of the hose, and a main body portion to which a tightening ring included in the hose clamp is attached, and the main body portion is openably and closably connected. And a locking means for locking the arm portion in the closed state to the main body portion side, the arm portion being connected to the main body portion via a hinge, and being connected to the substrate. And holding the outer peripheral surface of the hose so that the arm portion having the holding piece for holding the outer peripheral surface of the hose can be placed in an open state via the hinge. It is intended to effectively prevent the presence of the arm portion from interfering during the external fitting operation.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to a preferred embodiment. The holder according to the embodiment is an integrally molded product of a synthetic resin as in the prior art, and a hose clamp in an expanded state is hose. Although it has been developed as a temporary holding position at the regular mounting position of the end portion, as shown in FIGS. 1 to 3, the main body portion 1 for mounting the fastening ring of the hose clamp, The arm unit 2 includes a pair of arm portions 2 that are connected to both sides of the main body portion 1 so as to be openable and closable, and a lock unit that locks the arm portion 2 in the closed state to the main body portion 1 side. It has the board | substrate 4 connected with the main-body part 1 via the thin hinge 3, and the two holding pieces 5 connected to this board | substrate 4 and holding the outer peripheral surface of a hose.

  And the main-body part 1 exhibits the cross-sectional semicircular arc shape by which the upper surface side was open | released, From the wide part 1a located in the center part, and a pair of narrow part 1b located in the both sides of this wide part 1a The former wide portion 1a is provided with a positioning piece 6 in contact with the end face of the hose at the lower end in the axial direction, and the latter narrow portion 1b is arranged on the outer peripheral surface near the open end. And a second lock claw 8 on the outer peripheral surface near the thin hinge 3, and a hose clamp tightening ring on the inner peripheral surface of one narrow portion 1b. A locking projection 9 that locks with the window is projected. In particular, regarding the second lock claw 8, as shown in the drawing, a hook shape that curves in the direction of the thin hinge 3 is positively imparted to the tip portion.

  The pair of arm portions 2 are arranged in a bilaterally symmetric relationship, and the substrate 4 has a cross-sectional arc shape that is substantially the same width as the wide portion 1 a of the main body portion 1, and the first lock claw on the intermediate portion side. The first locking hole 10 is formed with the locking means together with the first locking claw 7 and the second locking hole is engaged with the second locking claw 8 on the thin hinge 3 side. 11 and the operation piece 12 is integrally provided continuously at the tip end side of the substrate 4 in the vicinity of the first lock hole 10, and the two holding pieces 5 are arranged on the inner periphery of the corresponding substrate 4. In the vicinity of the first lock hole 10 in the surface, the base end 5a is temporarily raised toward the center of the hose in the closed state of the arm portion 2 and from there toward the free end of the hose. It has an arc shape that can elastically hold the outer peripheral surface, and is positioned on the main body 1 side. Similarly the tips of the retaining pieces 5 existing on the same side and fit piece 6 has a configuration that continuously provided a positioning piece 13 abuts against the end face of the hose.

  As described above, the locking means is composed of the first lock claw 7 on the main body 1 side and the first lock hole 10 on the substrate 4 side of the arm portion 2, and holds the operation piece 12 of each substrate 4 described above. By rotating the substrate 4 connected to the pair of arms 2 in the closing direction via the thin hinge 3, the engagement of the first lock pawl 7 and the first lock hole 10 as shown in FIG. Each arm portion 2 can be locked to the main body portion 1 side with one touch, and when each arm portion 2 is closed, the holding piece 5 of each arm portion 2 is a narrow portion 1b of the main body portion 1. Since it is set to be positioned on the side, the holder itself can be made compact. Further, when the first lock claw 7 is engaged with the first lock hole 10, the second lock claw 8 described above is firmly attached to the corresponding second lock hole 11 by utilizing the shape of the flange provided at the tip. Shall be engaged.

  As shown in FIG. 5, the hose clamp C mounted in the main body 1 of the holder has a fastening ring 21 that is bent in a C shape with a metal strip and has a triangular window 26 on the peripheral surface. , Comprising a pair of grips 22 and 23 that project from both ends of the fastening ring 21 and project radially outward, and when the fastening ring 21 is reduced in diameter in a free state, the hose can be fastened. When the pair of grips 22 and 23 are brought close to each other, the tightening ring 21 is configured to expand in diameter. Here, the locking portion 24 provided on one grip 22 side is connected to the other grip 23 side. It is assumed that the hose clamp C is placed in a diameter-expanded state by being locked in the locking hole portion 25 provided in. However, in the present embodiment, the object can be achieved if the tightening ring 21 of the hose clamp C can be attached to the main body 1, so the hose clamp C is not limited to the holderless type, but the holder type It is optional depending on the implementation.

  Therefore, when the hose clamp C is temporarily held at the normal mounting position at the end of the hose by using the holder having the above-described configuration, as shown in FIG. After obtaining the state in which the portion 24 is locked in the locking hole 25 on the other grip 23 side and setting the hose clamp C in the expanded state, the fastening ring 21 of the hose clamp C is opened in the main body 1. When installed inside the main body 1 from the upper surface side, the triangular window 26 on the tightening ring 21 side and the locking projection 9 on the main body 1 side are locked, and as shown in FIG. The clamping ring 21 is elastically held by the inner peripheral surface of the main body 1 with the positioning ring 21 positioned. In addition, the holder at this time has the pair of left and right arms 2 in an open state, that is, in a molded state, as illustrated.

  Therefore, in this state, when the fastening ring 21 of the hose clamp C is externally fitted to the end portion of the hose H, the positioning piece 6 on the main body 1 side contacts the end surface of the hose H as shown in FIG. Then, further pushing-in is prevented, so that the hose clamp C is automatically positioned at the normal mounting position of the end of the hose H. Since the pair of left and right arm portions 2 are in the open state, unlike the conventional case, the presence of each arm portion 2 is completely unobstructed, so that the external fitting operation is easy.

  Therefore, after that, each operation piece 12 provided on the substrate 4 of the pair of arms 2 in the opened state is picked, and the substrate 4 of each arm 2 is rotated in the closing direction via the thin hinge 3. 8 and 9, the first locking claw 7 on the main body 1 side constituting the locking means engages with the first locking hole 10 on the substrate 4 side of the arm portion 2 so that a pair of Since the arm part 2 is locked in a closed state on the main body part 1 side, the outer holding surface of the hose H is elastically held by the four holding pieces 5 of each arm part 2. Become. In addition, each positioning piece 13 provided at the tip of the two holding pieces 5 also comes into contact with the end face of the hose H, so that the hose clamp C is also properly attached to the end of the hose H. At the same time, the outer peripheral surface of the hose H can be held by the raised portion 5a on the base end side of the four holding pieces 5, and the hose can be held on the free end side. Since the outer peripheral surface of H is elastically held, the holding state is stable, and the hose clamp C has a state in which the rotation stopper and the positional deviation in the axial direction are regulated together, It is surely temporarily held at the regular mounting position.

  At this time, the second lock claw 8 on the main body part 11 side is also engaged with the second lock hole 11 provided on the substrate 4 side of each arm part 2, so that the lock state is further reinforced. As a result, the arm portion 2 can be firmly locked to the main body portion 1 side. As a result, even if the thin hinge 3 is broken, the first lock claw 7 and the second lock claw 8 cooperate with each other. The dropout of 2 can be effectively prevented. In addition to this, the second lock claw 8 is provided closer to the thin hinge 3 than the first lock claw 7, and the hook shape is given to the tip of the second lock claw 8. Since the second lock claw 8 and the second lock hole 11 engage with each other, it is possible to prevent the arm portions 2 from falling off more reliably.

  Finally, although not specifically shown, after obtaining such a state as in the prior art, the tip of the pipe P is forcibly fitted into the end of the hose H, and the hose clamp C If the engagement state of the engagement portion 24 on the one grip 22 side and the engagement hole portion 25 on the other grip 23 side is released, the hose H can be fastened and fixed to the pipe P. However, in this embodiment, even if the four holding pieces 5 are holding the outer peripheral surface of the hose H, the holding pieces 5 can be deformed to exhibit an elastic shape. When the pipe P is fitted inside H, the holding piece 5 expands to a free state, and the pipe P is allowed to be smoothly fitted. In this case, the holder itself is kept on the hose H as it is.

  The hose clamp holder according to the present invention enables an arm portion having a holding piece for holding an outer peripheral surface of a hose to be placed in an open state with respect to a main body portion via a hinge, Since the arm portion can be effectively prevented from interfering during the fitting operation, it is advantageous to apply this to various hose clamps.

It is a perspective view which shows the holder which concerns on the Example of this invention. (A) is a front view of the holder, and (B) is a plan view. It is the sectional view on the AA line of FIG. It is sectional drawing which shows the state which locked a pair of arm part to the main-body part side. It is a perspective view which shows the relationship between a holder and a hose clamp. It is a perspective view which shows the state which mounted | wore the hose clamp tightening ring to the main-body part of a holder. It is a perspective view which shows the state which fitted the fastening ring of the hose clamp to the edge part of the hose together with the holder. It is a perspective view which shows the state which temporarily hold | maintained the hose clamp in an expanded diameter state in the regular attachment position of a hose edge part. It is the BB sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body part 1a Wide part 1b Narrow part 2 Arm part 3 Thin-walled hinge (hinge)
4 Substrate 5 Holding piece 5a Base end of holding piece 6 Positioning piece 7 First lock claw (locking means)
8 Second lock claw 9 Locking protrusion 10 First lock hole (locking means)
DESCRIPTION OF SYMBOLS 11 2nd lock hole 12 Operation piece 13 Positioning piece 21 Clamping ring 22 One grip 23 The other grip 24 Locking part 25 Locking hole part 26 Triangular window C Hose clamp H Hose P Pipe

Claims (6)

  A holding tool for temporarily holding a hose clamp in an expanded state at the end of the hose, a main body portion to which a fastening ring of the hose clamp is attached, and an arm portion that is connected to the main body portion so as to be openable and closable. And a lock means for locking the arm portion in the closed state to the main body portion side, the arm portion being connected to the main body portion via a hinge, the outer periphery of the hose being connected to the substrate. A hose clamp holder having a holding piece for holding a surface.   The lock means includes a first lock claw provided on the main body side and a first lock hole provided on the substrate side of the arm portion, and an operation piece on the tip side of the substrate in the vicinity of the first lock hole. The hose clamp holder according to claim 1, wherein the hose clamp holder is provided.   3. A positioning piece that abuts against the end face of the hose is provided on the main body, and a positioning piece that abuts against the end face of the hose is provided on the holding piece of the arm part. Hose clamp holder as described.   A second lock claw is provided closer to the hinge than the first lock claw on the main body side, and a second lock hole for engaging with the second lock claw is provided on the board side of the arm portion, and the tip of the second lock claw The hose clamp holder according to claim 2, wherein a hook shape that is curved in the hinge direction is given to the portion.   The holding piece that is connected to the base of the arm part rises once toward the center of the hose when the arm part is closed at the base end side, and holds the outer peripheral surface of the hose from there toward the free end. 5. The hose clamp holder according to claim 1, wherein the hose clamp has a circular arc shape.   The main body portion is composed of a wide portion and a narrow portion, and the holding piece of the arm portion is located in the narrow portion when the arm portion is closed. The hose clamp holder according to the above.

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