JP2011021658A - Clamp for band - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To feed a resin band pitch by pitch in a tightening direction with a simple operation of swinging a cover body in an opening/closing direction, and to obtain a strong tightening force. <P>SOLUTION: In a clamp for a band, a support shaft 20 pivotally supporting a cover body 3 on a base body 2 so as to be openable and swingable is configured to swing integrally with the cover body 3. A part of the support shaft 20 which is situated between both sidewalls 5, 5 of the base body 2 is formed in an oval cam. A return preventive pawl 10 and engaging pawl 23 respectively engaged with teeth 1 of a resin band B are situated in a base part 4 of the base body 2 and a swing base end side end of a ceiling wall 18 in the cover body 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention mainly relates to a fastener for a band used when an object to be attached such as a sign board is wound around and fixed to an outer peripheral surface of a pole body such as an electric pole with a resin band.

  An example of this type of band fastener is disclosed in Japanese Patent No. 4072272 proposed by the present applicant. The band fastener includes a base body and a cover body connected to the base body so as to be openable and closable. The band side fastener is integrally coupled to the base body with a fixed-side end portion of the resin band, and the free-side end portion of the resin band is connected to the base body. And the cover body is closed, and the free side end of the resin band is pressed and fixed between the base and the base. After the resin band is wound around the column body, the free side end of the resin band is inserted into the base body, and then the cover body is closed to press and fix the free side end of the resin band to prevent loosening. It is to take.

Japanese Patent No. 4072272

  In the above-described band fastener, after the resin band is wound around the column body, the resin band is attached to the shaft for supporting the free end of the resin band so that the cover body can be opened and closed with respect to the base body. A claw that engages with the teeth is projected, and the claw body is swung along with the swinging movement of the cover body to feed the resin band. As a result, since the resin band can be sequentially fed by the ratchet mechanism, there is an advantage that a firm tightening force can be obtained, but the tooth portion of the resin band is attached to the peripheral surface of the open / close swing shaft. In addition, the resin band that has been tightened must be securely brought into contact with each other, and the resin band that has been tightened is folded and fixed around the covering wall portion of the base. For this reason, when the place where the resin band is installed is high, the resin band is pressed against the peripheral surface portion of the open / close swing shaft while the hand is extended upward, and the cover body is swung. In addition, it has been found that there is a problem that the operation is different from the tightening work of inserting the tightened resin band in a folded manner and the burden on the worker is heavy.

  The present invention has been made to solve the above-described problems. In the band fastener including the base and the cover body that can be opened and closed as described above, the cover body is operated to swing in the opening and closing direction. It is an object of the present invention to provide a band fastener capable of performing a strong tightening operation by enabling a resin band to be chopped and fed in a tightening direction by a simple operation.

The present invention according to claim 1 includes a base body and a cover body that is pivotally supported by the base body so as to be capable of opening and closing.
The base body has a base portion and a cover wall portion disposed oppositely above the intermediate portion in the front-rear direction of the base portion. Between the opposing surfaces of the base portion and the cover wall portion, teeth on the back surface are arranged in the longitudinal direction. The first band insertion part, through which the free side end of the resin band attached to the jagged edges is inserted with the back side facing the base part, is formed so as to open the inlet and the outlet thereof back and forth.
A band fixing part to which the fixed side end of the resin band is integrally coupled is provided at the rear end in the front-rear direction of the base part.
In the first band insertion portion, a detent claw that engages with the teeth of the resin band protrudes from the base portion toward the covering wall portion,
The cover body can be opened and closed between the band fixing part of the base part and the rear end of the covering wall part in an open posture that opens to the rear of the covering wall part and a closed posture that is closed on the upper side of the covering wall part. It is configured to be connected and locked to the base in a closed posture,
A support shaft that slidably connects the cover body and the base body is fixed to the cover body, and a portion of the support shaft located between both side walls of the base body has a long diameter on the ceiling wall arrangement side of the cover body. Formed into an oval cam projecting toward the ceiling wall side having
The ceiling wall of the cover body is formed in a state in which the support shaft is exposed to the outside at a position corresponding to the support shaft arrangement portion, and the resin is formed on the inner surface of the ceiling wall at the end of the swing base end side. Protruding the engaging claw that engages with the teeth of the band made of
The engaging claw formed on the cover body is formed on the outer peripheral surface of the shaft body through a second band insertion portion in which a resin band pulled out from the first band insertion portion is formed between the support shaft and the base portion. By being folded along, it is characterized by engaging with the teeth formed on the back surface of the resin band.

The invention according to claim 1 exhibits the following effects. As shown in FIG. 1, in a state where the cover body is opened, the base portion of the base body is arranged along the outer periphery of the column body, and the fixed side end portion is integrally coupled to one end portion of the base portion. The band is wound around the column body, and the free side end portion is pushed into the first band insertion portion so that the back side of the band faces the base portion, and further through the second band insertion portion, the fixed side opening portion (base body rear end side opening portion) ) Once from.
Furthermore, the free end of the pulled-out resin band is inserted into the gap between the support shaft and the cover body that pivotally supports the cover body, and is pulled out along the inner surface of the ceiling wall of the cover body. .
In this state, when the cover body is grasped by the hand and swings in the opening and closing direction around the support shaft, the teeth formed on the back surface of the resin band and the engagement formed on the base wall swing base end side of the cover body. With the rotation of the support shaft formed on the oval cam in a state in which the joint claw is engaged, the resin band is drawn and chopped.
Then, the cover body returns to its original position by swinging the cover body in the closing direction. At this time, the teeth formed on the resin band and the engaging claws slide, and the cover body is formed on the base body. The detent claw that engages with the teeth of the resin band prevents the resin band from returning backward in the loosening direction. By repeating the swinging operation of the cover body, the resin band is sequentially sent in the tightening direction and is tightened strongly.

  In the band fastener according to the first aspect of the present invention, as described in the second aspect, the resin band is attached to the upper surface of the base portion serving as the outlet of the second band insertion portion of the support shaft (cam). By adopting a configuration in which a slope wall that guides and guides in the direction along the outer peripheral surface is adopted, the resin band can be brought into contact with the outer peripheral surface of the support shaft (cam) more securely, and it can be fed stably and reliably. can do.

  According to the band fastener of the present invention, it is possible to feed the resin band in the tightening direction by a simple operation of swinging the cover body in the opening and closing direction, and at this time, the cover portion and the resin band portion Can be swung while being gripped at the same time, so that a powerful tightening operation can be easily performed and the usability is extremely good. Furthermore, when the tightening operation is completed, the cover body is simply put on and fixed to the base as it is, so that from the tightening operation to the fixing operation can be performed as a series of operations with the same operation. Can be reduced.

It is the perspective view which showed the fastener for bands with column bodies, such as a resin band and a utility pole. It is sectional drawing in the state which has the cover body of the fastener for bands in an open position. It is sectional drawing of the base | substrate of the fastener for bands. It is sectional drawing of the cover body of the fastener for bands. It is sectional drawing in the state which has the cover body of a band fastener in a closed position. It is sectional drawing which shows the time of fastening operation.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the band fastener (A) is placed on the column body (C) from the top of the attached object (D) such as a sign board provided on the outer peripheral surface of the column body (C) such as a utility pole. It is used to fasten and fix the wound resin band (B). The resin band (B) is provided with teeth (1) having a trapezoidal or triangular cross-sectional shape on its back surface.

  As shown in FIG. 2, the band fastener (A) comprises a resin base (2) and a cover body (3). The base body (2) is integrally raised from a base part (4) formed in a flat plate shape slightly wider than the width of the resin band (B) and from both side edges in the left-right width direction of the base part (4). The left and right side wall portions (5), (5) and the upper portion of the both side wall portions (5), (5) are integrally formed opposite to each other in parallel with the upper portion of the base portion (4) in the front-rear direction. A first band insertion that allows a resin band (B) to be inserted into the facing surface between the covering wall portion (6) and the base portion (4). The part (7) is formed so as to open the inlet (7a) and the outlet (7b) forward and backward.

  A claw-shaped holding piece (elastically deformable to the base part (4) in the first band insertion part (7) by forming a U-shaped groove in plan view in the middle part in the front-rear direction of the base part (4). 9) is provided in a cantilever shape, and on the free rear end side of the claw holding piece (9), a sawtooth-shaped detent claw (10) is integrally projected toward the cover wall (6). ing.

  A band fixing portion (12) for integrally connecting the fixing side end portion (11) of the resin band (B) is provided at the rear end portion in the front-rear direction of the base portion (4). The band fixing portion (12) is constituted by a connecting bar which is attached between the side walls (5) and (5) at the rear end portion of the base portion (4). Then, the fixed side end portion (11) of the resin band (B) is folded back around the band fixing portion (12), and the teeth (1) formed on the back surface of the resin band (B) are engaged with each other. The resin bands (B) are integrated with each other so that the resin band (B) can be assembled to the base portion (4) of the base body (2) in a relatively rotatable state.

As shown in FIGS. 2 and 3, shaft holes (15) for pivotally supporting the cover body (3) are provided on the side wall fixing portion side rear end portions of the side wall portions (5) and (5). ), And a part of the circumference of the shaft hole (15) and the upper edge of the side wall (5) are communicated by a narrow fitting groove (16), and the both side walls (5), (5 ) Is provided with a locking projection (17) for closing and locking the cover body (3).

  On the other hand, the cover body (3) has a ceiling wall portion (18) and both side wall portions (19) and (19) connected to the right and left ends of the ceiling wall portion (18) at right angles. A support shaft (20) is integrally provided between the side wall portions (19) and (19) at the rear end portion of the cover body (3). Both ends of the support shaft (20) are fitted from the fitting grooves (16) of the shaft hole (15) of the base (2), so that the cover body (3) is covered with the cover (2). The support shaft (20) is pivotally connected to the support shaft (20) so as to be openable and swingable over an open posture that opens rearward of (6) and a closed posture (see FIG. 5) that is closed to the upper side of the covering wall portion (6). Further, a portion of the support shaft (20) facing the base portion (4) at the middle portion in the axial center direction is formed in an oval cam (21) having a long diameter in the vertical direction in the closed posture.

  Between the peripheral surface of the cam (21) and the inner surface of the base part (4) of the base body (2), there is a resin band (B) drawn from the outlet (7b) of the first band insertion part (7). A second band insertion portion (22) that allows insertion of the free side end portion is formed. The ceiling wall portion (18) of the cover body (3) at a position corresponding to the peripheral surface of the cam (21) is removed, and the cam (21) is configured to be exposed to the outside. An engagement claw (23) that meshes with the teeth (1) formed on the back surface of the resin band (B) on the inner surface of the shaft side end portion (swing base end side end portion) of the ceiling wall portion (18). Is protruding.

  Also, the cover body (3) is engaged with the side wall portions (19) and (19) by being engaged with the engagement protrusions (17) of the base body (2) when the cover body (3) is closed. A locking hole (25) for locking (3) in the closed posture position is provided.

  On the upper surface of the base portion (4) at the outlet of the second band insertion portion (22), a slope wall (in order to guide and guide the resin band (B) along the outer peripheral surface of the cam (21)). 26) is provided integrally.

A procedure for using the band fastener (A) having the above-described configuration will be described with reference to FIG.
First, with the cover body (3) opened, the fixed side end (11) of the resin band (B) is wound around the band fixing portion (12) from the surface side of the base (4). 1) Make a state where they face each other. Next, as shown in FIG. 1, the base portion (4) of the base body (2) is placed along the column (C) from the top of the attachment (D), and the resin band (B) is aligned with the column (C). Wrap it. Then, in the fixed side end portion (11) of the resin band (B), the surplus portion (11a) drawn out by winding the band fixing portion (12) is formed on the back surface and the base portion of the resin band (B) ( 4), the fixed side end portion (11) is coupled to the band fixing portion (12) of the base portion (4) in a retaining manner. Further, since the teeth (1) on the back surface of the folded surplus portion (11a) of the resin band (B) and the teeth (1) of the opposite portion mesh with each other, the fixed side end portion (11) becomes the base portion (11). The effect of preventing the slipping out of the band fixing part (12) of 4) is enhanced. The surplus portion (11a) and the main body portion of the resin band (B) may be fixed by a bonding means such as an adhesive or heat bonding.

  The free side end of the resin band (B) wound around the column (C) as described above is connected to the first band insertion part (7) of the base body (2) from the inlet (7a) to the teeth (1). A second band formed between the bottom wall of the base portion (4) and the peripheral surface of the cam (21). The second band is inserted into the base portion (4) and pulled out from the outlet (7b). The resin band (B) once pulled out from the base (2) and the cover (3) through the insertion part (22) and wound around the base (2) and the cover (3). Remove any looseness. In this case, since the slope wall (26) is provided on the upper surface of the base part (4) at the terminal portion of the second band pushing part (22), the resin band (B) is attached to the slope wall (26). By being along the slope, it can be smoothly led to the upper part of the band fixing part (12). In addition, since the sawtooth-shaped detent claw (10) protrudes from the upper surface portion of the base portion (4) corresponding to the terminal portion of the first band insertion portion (7), the first band insertion portion ( 7) It is possible to suppress as much as possible that the resin band (B) is loosened by the biting of the teeth (1) of the resin band (B) inserted through 7) and the detent claw (10). Become.

Next, the resin band (B) once pulled out from the upper part of the band fixing part (12) to the outside of the base body (2) and the cover body (3) is inserted into the open part of the support shaft corresponding part of the cover body (3). The surface side of the resin band (B) is positioned along the cam peripheral surface of the support shaft (20), and the resin band (B) led out above the base body (2) is covered with the cover body (3). It is arranged along the inner surface of the ceiling wall (18).
In this way, with the free end of the resin band (B) along the inner surface of the ceiling wall (18), hold the cover (3) with your hand and open and close around the axis of the support shaft (20) Swing in the direction.

At this time, the cam (23) of the support shaft (20) has an oval shape and the front end of the engaging claw (23) formed on the ceiling wall rocking base end side of the cover body (3) Since it is engaged with one tooth (1) of the resin band (B), when the cover body (3) is swung in the closing direction, the resin band (B) is pulled in the tightening direction. As a result, the engagement point between the sawtooth-shaped detent claw (10) formed on the upper surface portion of the base portion (4) and the teeth (1) formed on the resin band (B) is changed, and the resin is made. Only the advance amount of band (B) will be tightened.
On the other hand, when the cover body (3) swung in the closing direction is swung in the opening direction, the front end of the engaging claw (23) formed on the ceiling wall rocking base end side of the cover body (3) is resin. Since the engagement of the band (B) with the teeth (1) is loosened, the cover body (3) can be changed to the open position without affecting the resin band (B). When the cover body (3) is swung again in the closing direction, the tip of the engaging claw (23) formed on the ceiling wall rocking base end side of the cover body (3) is attached to the resin band (B). The resin band (B) is pulled in by engaging with the teeth (1).

  By repeating the swinging operation of the cover body (3) in the opening / closing direction several times, the resin band (B) is gradually tightened strongly against the column body (C). According to such a swinging operation of the cover body (3), the resin band (B) can be easily and strongly tightened.

  After this tightening operation, the cover body (3) is closed to the upper side of the covering wall portion (6) and the locking hole (25) is locked to the locking protrusion (17) of the base body (2), thereby covering the cover body. (3) is held and fixed in the closed position. In this posture, the teeth (1) of the resin band (B) are engaged with the engaging claws (23) of the cover body (3) and the detent claws (10) formed on the base portion (2). As a result, the band loosening prevention state is secured.

  This is effective when the object to be mounted is wound around and fixed to the outer peripheral surface of the columnar body with a resin band.

  DESCRIPTION OF SYMBOLS 1 ... Teeth, 2 ... Base | substrate, 3 ... Cover body, 4 ... Base part, 5 ... Side wall of base | substrate, 6 ... Cover wall part, 7 ... 1st band insertion part (7a ... Inlet, 7b ... Outlet), 10 ... Return Stop claw, 11 ... Resin band fixing side end, 12 ... Band fixing part, 18 ... Ceiling wall of cover body, 20 ... Support shaft, 21 ... Cam, 22 ... Second band insertion part, 23 ... Engaging claw, 26 ... Slope wall, B ... Resin band.

Claims (2)

A base body (2) and a cover body (3) pivotally supported by the base body (2) so as to be openable and slidable;
The base body (2) has a base portion (4) and a cover wall portion (6) disposed above the intermediate portion in the front-rear direction of the base portion (4). The base portion (4) and the cover wall The free side end of the resin band (B) with the teeth (1) jagged in the longitudinal direction on the back surface is inserted between the opposing surfaces of the portion (6) with the back surface facing the base portion (4). The first band insertion part (7) is formed so as to open the inlet (7a) and the outlet (7b) forward and backward,
A band fixing portion (12) to which the fixing side end portion (11) of the resin band (B) is integrally coupled is provided at the rear end portion in the front-rear direction of the base portion (4).
In the first band insertion portion (7), a detent claw (10) that engages with the teeth (1) of the resin band (B) is projected from the base portion (4) toward the covering wall portion (6). And
The cover body (3) has an opening posture and a covering wall portion that opens rearward of the covering wall portion (6) between the band fixing portion (12) of the base portion (4) and the rear end of the covering wall portion (6). (6) It is configured to be able to open / close and swing over a closed position closed on the upper side, and to be locked and fixed to the base (2) side in the closed position,
A support shaft (20) for slidably connecting the cover body (3) and the base body (2) is fixed relative to the cover body (3), and the base body (2) of the support shaft (20) is fixed. The portion located between the side walls (5) and (5) has a long diameter on the side of the cover body (3) where the ceiling wall (18) is disposed, and an oval cam (21 ), And
The ceiling wall (18) of the cover body (3) is formed in a state where the support shaft (20) is exposed to the outside at a portion corresponding to the support shaft arrangement portion, and the support shaft arrangement on the ceiling wall (18) is formed. An engaging claw (23) that engages with the teeth (1) of the resin band (B) is projected on the inner surface of the installation side edge,
The engaging claw (23) formed on the cover body (3) has a resin band (B) pulled out from the first band insertion portion (7) so that the support shaft (20) and the base portion (4) are connected. It is engaged with the teeth (1) formed on the back surface of the resin band (B) by being folded along the outer peripheral surface of the support shaft (20) through the second band insertion portion (22) formed therebetween. Band fastener characterized by being adapted. A slope wall (26) for guiding and guiding the resin band (B) in the direction along the outer peripheral surface of the support shaft (20) is provided on the upper surface of the base part (4) serving as the outlet of the second band insertion part (22). The band fastener according to claim 1.

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