JP6086543B2 - Hose band installation tool - Google Patents

Description

  The present invention relates to a hose band attachment tool that facilitates insertion of a hose by expanding the diameter of the hose band when the hose band is attached to a hose to be attached to the outer peripheral portion of a connection end of a pipe.

  A hose band is used to tighten and attach a radiator hose to an upper / hose attachment port and a lower / hose attachment port of an automobile radiator. As shown in FIGS. 7 (A) and 7 (B), the hose band is formed with a belt-like member having elastic force in an annular shape 101 and crossing both ends of the belt-like member to form knobs 102 and 103. By tightening the hose H from the outer periphery by the elastic force of the annular portion 101, it is possible to prevent the radiator hose H from being detached from the hose attachment port and water leakage from the hose attachment port.

  In the natural state, as shown in FIG. 7A, the hose band 100 can tighten the radiator hose H from the outer periphery by reducing its diameter, but in order to attach the hose band 100 to the outer periphery of the end of the radiator hose. As shown in FIG. 7 (B), the knobs 102 and 103 are sandwiched to expand the diameter of the annular portion 101, and the radiator hose H must be inserted therethrough. In order to expand the diameter of the annular portion 101 of the hose band 100 in this way, the following pliers are known (see, for example, Patent Document 1).

  The pliers are formed by a pair of arms that intersect a pair of gripping portions and a pair of gripping portions, one arm having a first gripping portion and a first gripping portion, and the other arm being a second gripping portion and It has the 2nd clamping part. One arm is formed as one member from the first gripping part to the first clamping part.

  On the other hand, in the other arm, the second gripping portion is pivotally supported with respect to the second sandwiching portion, and when a component is sandwiched between the first sandwiching portion and the second sandwiching portion, a torque acting on the second gripping portion is generated. A crank mechanism that bends the second gripping portion toward the first gripping portion when it exceeds a predetermined value, a transmitter that detects a bending operation by the crank mechanism of the second gripping portion and transmits a signal, and no parts A stopper that restricts inward swinging between the first gripping part and the second gripping part is provided so that the first clamping part and the second clamping part do not hit each other in the state. That is, the other arm is formed with the crank mechanism interposed between the second gripping portion and the second clamping portion.

  In the case of the so-called idle driving in which the pliers configured in this manner grips the first gripping portion and the second gripping portion without sandwiching the two knob portions 102 and 103 of the hose band 100, the crank mechanism bends. The inward swinging between the first gripping part and the second gripping part can be restricted by the stopper without any problem. Accordingly, when the operator is idle, the transmitter does not transmit a detection signal, but transmits a detection signal when the hose band 100 is clamped, so that it is possible to accurately detect that the hose band 100 is clamped. it can.

  Moreover, in order to expand the diameter of the annular portion 101 of the hose band 100, a hose band attachment tool as described below is known (see, for example, Patent Document 1). As shown in FIG. 8 (A), the hose band attaching tool includes a pair of pliers main bodies 112 formed from clamping parts 112a and 113a and a handle part (not shown) extending from the clamping parts. 113 and a pair of pliers main bodies 112 and 113 are connected in a crossed state, so that one pair of facing portions of the pair of pliers main bodies 112 and 113 are connected to each other so as to protrude toward the other facing portion. 114 is provided, and the other facing portion is formed with two through holes 115 and 116 for rotatably supporting the connecting shaft 114, and the connecting shaft 114 serves as a fulcrum according to opening and closing of the two handle portions. And a plier coupling mechanism for opening and closing the two sandwiching portions 112a and 113a. The connecting shaft 114 is formed in a substantially elliptical shape in which a circular shape is cut out by two parallel lines, and the circular portion is set to a size that can be slidably fitted in the through holes 115 and 116.

  The plier coupling mechanism has two sliding holes 117 that are slidable in a state in which the notch portion of the coupling shaft 114 is fitted, and is cut between the two through holes 115 and 116, and the two handle portions are closed. When the two knobs 102 and 103 of the hose band 100 are clamped by the clamping parts 112a and 113a and the diameter of the main body 101 is expanded to a predetermined size, the connecting shaft 114 is slid by the elastic force of the main body 101 of the hose band 100. A lever switch (not shown) is configured to slide the hole 117 and move from the first through-hole 115 to the second through-hole 116 and detect the movement of the connecting shaft 114 when sliding the slide hole 117. It has.

  As shown in FIG. 8 (A), the hose band attaching tool 111 configured as described above is a torsion coil spring (not shown) in order to fasten the radiator hose H with the hose band 100 through which the radiator hose H is inserted. .)), The two knobs 102, 103 of the hose band 100 are gripped by a pair of so-called initial pliers main bodies 112, 113 that are forcibly opened by the elastic force.

  Then, as shown in FIG. 8B, by closing the two handle portions (not shown), the gripping portions 102 and 103 of the hose band 100 are made elastic by the annular 101 by the two holding portions 112a and 113a. When sandwiched against the force, the connecting shaft 114 slides while rotating in the direction in which the connecting shaft 114 is gradually fitted into the slide hole 117 from the first through hole 115.

  Further, when the two handle portions are closed and the diameter of the annular 101 of the hose band 100 is expanded to a predetermined size, the connecting shaft 114 is fitted into the slide hole 117, so as shown in FIGS. 8C and 8D. Further, the connecting shaft 114 slides through the slide hole 117 by the elastic force of the annular 101 of the hose band 100 and is fitted into the second through hole 116. Hereinafter, this position is referred to as a “hose band return position”. At this time, since the connecting shaft 114 tilts the lever of the lever switch, the switch is turned on and a detection signal is transmitted from the transmitter, so that the annular 101 of the hose band 100 is reliably secured at the place where the receiver is disposed. It can be confirmed that the hose is tightened from the outer periphery.

  In FIG. 8, (A) is denoted by reference numerals and (B) to (H) are not denoted by reference numerals, but (B) to (H) only show parts similar to (A). Therefore, the reference numerals are omitted.

JP 2000-271873 A JP 2011-152606 A

  However, in the pliers described in the background art, the bending operation by the crank mechanism of the second gripping portion is detected and a signal is transmitted from the transmitter. Therefore, when the pliers are dropped by mistake or when the pliers other than the hose band 100 are clamped Even when an object is clamped, it may be determined that the two knobs 102 and 103 of the hose band 100 are clamped. Moreover, since it is such a structure, it was not able to be utilized as a general plier for pinching objects to be held other than the hose band 100.

  Further, in the hose band attaching tool 111 described in the background art, in order to return the pair of pliers main bodies 112 and 113 to the initial state, the radiator hose H is tightened with the hose band 100 shown in FIGS. In addition to the first gripping operation for gripping the pair of pliers main bodies 112 and 113, there is a difficulty in requiring the second gripping operation by the pair of pliers main bodies 112 and 113 shown in FIGS. there were. That is, in order to return the pair of pliers main bodies 112 and 113 to the initial state, the two sandwiching portions 112a and 113a are removed from the two knob portions 102 and 103 of the hose band 100 (FIG. 8E), By clamping the pliers main bodies 112 and 113, the connecting shaft 114 is moved from the second through hole 116 to the first through hole 115 through the slide hole 117 by the elastic force of the torsion coil spring (FIG. 8 (F ), (G)), the pair of pliers main bodies 112 and 113 had to be returned to the initial state (FIG. 8H). Therefore, in one hose band attaching operation, since two gripping operations are required, the work burden on the operator is doubled.

  Furthermore, in the hose band mounting tool 111 described in the background art, the hose band return position for inserting the hose band 100 into the radiator hose H and tightening the radiator hose H is the diameter of the two through holes 115 and the through holes 116. In addition, since the length of the slide hole 117 and the diameter of the connecting shaft 114 are determined, there is a problem that the hose band 100 having a different size cannot be used. Moreover, since it is such a structure, it was not able to be utilized as a general plier for pinching objects to be held other than the hose band 100.

  Further, in the hose band mounting tool 111 described in the background art, as shown in FIG. 9, the corner portion (for example, position B) of the connecting shaft 114, the two through holes 115, the through holes 116, and the slide holes of the plier body 113. Since the corner portion (for example, the position of A) where the 117 intersects is worn by rubbing due to the rotational movement or sliding movement of the connecting shaft 114, depending on the amount of wear, the tool may be idle.

  The present invention has been made to solve such a conventional problem, and can complete a single hose band mounting operation by only one gripping operation, and malfunction even if a tool is accidentally dropped. An object of the present invention is to provide a hose band attachment tool that can prevent the blanking without being performed.

Another object of the present invention is to provide a hose band attachment tool that can be used for hose bands of different sizes.
Moreover, an object of this invention is to provide the hose band installation tool which can be utilized as a general pliers.
It is another object of the present invention to provide a hose band attachment tool that can prevent a malfunction from being determined to sandwich two knob portions of a hose band.

  The hose band attachment tool according to the first aspect of the present invention, which achieves the above-mentioned object, has a main body in which a belt-like member having elasticity is formed in an annular shape, and the diameter of the main body after both ends of the main body intersect. By sandwiching the two knobs against the elastic force of the main body, the hose band is composed of two knobs extending at both ends in a state bent substantially in the radial direction. It is attached to the hose. In this specification, “extension” means provision in an extended state.

  Such a hose band attachment tool is connected to a pair of pliers main bodies formed from a clamping part and a handle part extending from the clamping part, and a pair of pliers main bodies in a crossed state. A connecting shaft is pivotally supported at one facing portion of the pair of pliers main bodies so as to protrude toward the other facing portion, and a connecting shaft protruding from one facing portion is provided at the other facing portion. An oblong hole that is slidably fitted is formed, and arcs at both ends of the oblong hole that slide the connecting shaft when the two holding parts are opened and closed with the connecting shaft as a fulcrum according to opening and closing of the two handle parts A plier coupling mechanism that changes the amount of expansion of the two clamping parts by changing the center, and a plier body that is formed with an oblong hole, is rotatably supported by the first pin, and the first pin is rotated. The first round with a dynamic center When rotating in the direction, the connecting shaft is fixed at a position that minimizes the amount of expansion of the two holding portions within the oblong hole, and the connecting shaft increases the amount of expansion of the two holding portions within the oblong hole. A stopper formed so as to rotate in the second rotation direction opposite to the first rotation direction with the first pin as the rotation center according to the slide amount, and an oval A second pin is rotatably supported by the pliers main body in which the hole is formed, and one end of the link member is rotatably connected to the stopper via the first link pin. In the case of a dead point where the second pin, the first link pin, and the second link pin are located on the same straight line, the connecting shaft is inserted into the oblong hole by a stopper when the second pin, the first link pin, and the second link pin are located on the same straight line. The lever that fixes the position to minimize the amount of expansion of the two clamping parts The end of one arm is fixed to the plier body on which the connecting shaft is pivotally supported, the other arm is engaged with the other end of the link member, and the stopper is the first pin. A torsion coil spring that applies elastic force to the other end of the link member so as to rotate in the rotational direction, and a connecting shaft that is fixed to the pliers body that is pivotally supported. A connecting shaft releasing member that is brought into contact with a portion of the lever that rotates the lever in the first rotation direction when the two knobs of the hose band are held between the holding portions and the diameter of the main body is expanded to a predetermined size. It is equipped with. In this specification, “clamping” means supporting in a sandwiched state. Further, “shaft support” means that the shaft is rotatably supported. Further, in this specification, “rotation” means circular movement in the forward and reverse directions. Further, in this specification, “winding” means wearing in a state where the outside is wound.

  The hose band mounting tool according to the first aspect is configured so that the tool is in an initial state, that is, before use, by a stopper that is forcibly rotated in the first rotational direction by the elastic force of the torsion coil spring. Is fixed at a position that minimizes the amount of expansion of the two clamping portions in the oblong hole, and the second pin, the first link pin, and the second link pin are fixed at a dead point.

  With this initial state of the tool, the two holding portions were opened by the two handle portions of the pair of pliers main bodies by rotating the connecting shaft at a position that minimizes the amount of expansion of the two holding portions in the oblong hole. When sandwiching the two knobs of the hose band from the state, the connecting shaft opening member clamps the two knobs of the hose band with the two clamps by closing the two handle parts. When the lever is expanded to a predetermined size, the lever comes into contact with the portion of the lever that rotates the lever in the first rotation direction. Is rotated in the first rotation direction around the rotation center, so that the stopper rotates in the second rotation direction via the link member. As a result, the connecting shaft slides in the direction of increasing the amount of expansion of the two clamping portions within the oblong hole, so that the two gripping portions of the hose band are opened by opening the two clamping portions by the sliding length of the oblong hole. The part can be returned to the original position by the elastic force of the main body. Therefore, the hose band can tighten the hose by the elastic force of the main body.

  Further, in this state, if the two clamping portions are removed from the two knob portions of the hose band, the elastic force of the hose band body is not applied to the two clamping portions, so the stopper is linked by the elastic force of the torsion coil spring. It will forcibly rotate in the first rotation direction via the member. As a result, the connecting shaft slides to a position that minimizes the amount of expansion of the two clamping parts in the oblong hole, so that the tool is in the initial state by simply removing the two clamping parts from the two knobs of the hose band. Can be.

  The second aspect of the present invention is the hose band attachment tool according to the first aspect, wherein the second pin, the first link pin, and the second link pin are in a dead point state on the same straight line, and the stopper A stopper pin that comes into contact with the link member so as not to rotate in the first rotation direction is provided so as to protrude from the plier main body in which the oval hole is formed.

  According to the hose band attachment tool which is such a 2nd aspect, since the load concerning a torsion coil spring can be reduced, durability of a torsion coil spring improves.

  According to a third aspect of the present invention, in the hose band attachment tool according to the first aspect or the second aspect, the connection shaft releasing member is screwed into an adjustment bolt that makes the tip abut the lever portion and the adjustment bolt. An adjustment bolt support member fixed to the plier body on which the connecting shaft is pivotally supported, and an adjustment bolt protruding from the adjustment bolt support member by a preset length to be screwed to the adjustment bolt. It is comprised from the fastening nut combined.

  According to the hose band attaching tool which is such a third aspect, the adjustment bolt is protruded from the adjustment bolt support member by a preset length, and the adjustment bolt is fixed in the protruding state by the fastening nut. Therefore, it is possible to correspond to a plurality of hose bands having different sizes with a single hose band mounting tool.

  According to a fourth aspect of the present invention, in the hose band mounting tool according to the third aspect, the hose band attaching tool includes a rotating means for rotating the adjustment bolt support member so that the tip of the adjustment bolt does not contact the portion of the lever. It is.

  According to the hose band mounting tool which is such a fourth aspect, when the adjustment bolt support member is rotated and moved so that the tip of the adjustment bolt does not contact the lever portion by the rotating means, as a general pliers, Can be used.

  According to a fifth aspect of the present invention, in the hose band attachment tool according to any one of the first aspect to the fourth aspect, one end is fixed to the connecting shaft and the other end is formed with an oval hole. And a tension spring that is fixed at a predetermined position of the pliers main body and always pulls the connecting shaft in a direction of a position that minimizes the amount of expansion of the two holding portions within the oblong hole.

  According to the hose band attachment tool which is such a 5th aspect, the elastic force of a torsion coil spring can be reinforced with the elastic force of a tension spring.

  According to a sixth aspect of the present invention, in the hose band attaching tool according to any one of the first to fifth aspects, the plier main body in which an oval hole is formed is rotatable with a third pin. When the connecting shaft slides in the direction of increasing the expansion amount of the two clamping portions in the oblong hole, the third pin rotates in the second rotation direction around the third pin according to the sliding amount. And a striker that is provided on a plier body in which an oblong hole is formed, and a connecting shaft slides in a direction that increases the amount of expansion of the two clamping portions in the oblong hole. And a detecting means for detecting the movement of the striker rotating in the second rotation direction with the pin as the rotation center.

  According to the hose band mounting tool which is the sixth aspect as described above, as apparent from the first aspect, the striker can be interlocked with the connecting shaft that slides reliably, so that the main body of the hose band can be securely connected. It is possible to detect that the hose has been tightened from the outer periphery.

  According to a seventh aspect of the present invention, in the hose band attachment tool according to any one of the first to sixth aspects, the tool is connected to each of the handle portions of the pair of pliers main bodies, and the connection shaft is used as a fulcrum. It is provided with elastic means that always opens the two handle parts and the two clamping parts.

  According to the hose band attaching tool which is such a seventh aspect, since the handle portions of the pair of pliers main bodies are forcibly opened by the elastic means, the holding interval between the two holding portions is set to 2 of the hose band. The two knobs can be set at positions where the knobs can be easily picked, and the workability of the tool can be improved.

The eighth aspect of the present invention is the hose band attachment tool according to the seventh aspect, wherein the elastic means is a compression coil spring disposed between the two handle portions.
According to the hose band attachment tool which is such a 6th aspect, durability of a spring body can be improved.

  According to the hose band mounting tool of the present invention, it is possible to complete one hose band mounting operation by only one gripping operation, and there is no malfunction even if the tool is accidentally dropped. Can be prevented.

Moreover, according to the hose band attachment tool of this invention, it comes to be applicable also to a hose band of different sizes.
Moreover, according to the hose band attachment tool of this invention, it comes to be able to utilize as a general pliers.
Moreover, according to the hose band attachment tool of the present invention, it can be prevented that it is determined that the two knob portions of the hose band are sandwiched due to malfunction.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the preferable embodiment example in the hose band attachment tool of this invention, (A) is a figure which shows the state which a pair of pliers main body closed, (B) is the connection shaft of a pliers connection mechanism, and the elasticity of a tension spring It is a figure which shows the state which slid the ellipse hole against force. It is explanatory drawing which shows the effect | action of the connection shaft open | release member which is a component of the hose band attachment tool of this invention, (A) is a figure of the state where the length of the adjustment bolt which protruded from the support member for adjustment bolts is short, (B) These are figures of the state where the length of the adjustment bolt which protruded from the support member for adjustment bolts is long. It is explanatory drawing which shows the effect | action of the rotation means which rotates the support member for adjustment bolts which is a component of the hose band attachment tool of this invention, (A) is a figure of the state which the front-end | tip of an adjustment bolt contacts the site | part of a lever (B) is a figure of the state where the tip of an adjustment bolt does not contact the part of a lever. It is a top view which shows the arrangement | positioning state with respect to a pair of pliers main body of the striker and detection means which are the components of the hose band attachment tool of this invention. It is the whole perspective view which shows the specific example of a hose band, (A) is the figure which latches two knob parts of a hose band, and expands the diameter of a main body, (B) is the latching state of two knob parts It is a figure which cancels | releases and is reducing the diameter of a main body. It is operation | movement explanatory drawing of the hose band installation tool of FIG. 1, (A) is a figure which shows the initial state which a pair of pliers main body opened, (B) is a figure which shows the state which a pair of pliers main body closed, (C) is It is a figure which shows the state which the connection axis | shaft of the pliers connection mechanism slid the oblong hole against the elastic force of the tension spring. It is an operation explanatory view of attaching the hose band to the hose, (A) is a view showing the hose band being closed and tightening the hose, and (B) is an open hose band holding the two knobs of the hose band. It is the figure where is inserted. It is explanatory drawing which shows operation | movement of the conventional hose band attachment tool. It is operation | movement explanatory drawing which shows the relationship between the two through-holes and slide holes of a conventional hose band attachment tool, and a connection shaft.

  Hereinafter, an embodiment for carrying out the hose band attaching tool of the present invention will be described with reference to the drawings. As shown in FIG. 1 (A), the hose band attachment tool of the present invention has a diameter of the main body 11 after the main body 11 in which an elastic band member is formed in an annular shape and both ends of the main body 11 intersect. The hose band 10 composed of two knobs 12 and 13 extending at both ends in a state of being bent in a substantially radial direction, and the two knobs 12 and 13 being elastic forces of the main body 11. It is attached to the hose H by being pinched against the hose.

  The hose band attaching tool 1 includes a pair of pliers main bodies 2 and 3 formed of a sandwiching portion 2a and 3a and handle portions 2b and 3b extending from the sandwiching portions 2a and 3a. In order to connect in a crossed state, a connecting shaft 41 is pivotally supported at one facing portion of the pair of pliers main bodies 2 and 3 so as to protrude toward the other facing portion. In addition, a plier coupling mechanism 4 in which an oblong hole 42 into which a coupling shaft 41 protruding from the one facing portion is slidably fitted is formed in the other facing portion, and a plier in which the oblong hole 42 is formed. A stopper 5 rotatably supported on the main body 3 by the first pin 51, a lever 6 rotatably supported by the second pin 61 on the plier main body 3 in which the oval hole 42 is formed, Screw wound around pin 61 of 2 A coil spring 7, and a connecting shaft opening member 8 to the connecting shaft 41 is fixed to the pliers body 2 pivotally supported.

  The pair of pliers main bodies 2 and 3 has substantially the same configuration as a commercially available general plier, and includes a holding surface 2c formed on a holding portion 2a of the first pliers main body 2, and a second plier main body 3. According to the opening and closing of the handle portion 2b of the first plier body 2 and the handle portion 3b of the second plier body 3 are connected by the plier connecting mechanism 4 so that the holding surface 3c formed in the holding portion 3a faces each other. Since the two clamping parts 2a and 3a are also opened and closed, the two knobs 12 and 13 of the hose band 10 can be clamped by the clamping surfaces 2c and 3c of the two clamping parts 2a and 3a facing each other. The two clamping surfaces 2c and 3c are provided with unevenness that can prevent slippage when the object to be clamped is displaced.

  The plier coupling mechanism 4 is provided at both ends of an oblong hole 42 for sliding the coupling shaft 41 when the two clamping portions 2a and 3a are opened and closed with the coupling shaft 41 as a fulcrum according to the opening and closing of the two handle portions 2b and 3b. By changing the center of the arc, the expansion amount of the two sandwiching portions 2a and 3a is changed.

  When the stopper 5 rotates in the first rotation direction with the first pin 51 as the center of rotation, the connecting shaft 41 is positioned in the oval hole 42 to minimize the amount of expansion of the two clamping portions 2a and 3a. When the connecting shaft 41 is slid in the direction of increasing the amount of expansion of the two holding portions 2a and 3a within the oblong hole 42, the first pin 51 is set as the center of rotation according to the amount of sliding. It is formed so as to rotate in a second rotation direction opposite to the rotation direction of 1. Here, the first rotation direction is the counterclockwise direction (left rotation) in FIGS. 1A and 1B, and the second rotation direction is the clockwise direction (rightward in FIGS. 1A and 1B). Rotation). The same applies to FIGS. 6A, 6B, and 6C described later.

  The lever 6 is rotatably connected to the other end of the link member 9 whose one end is rotatably connected to the stopper 5 via the first link pin 52, via the second link pin 62. In the case of a dead point where the first pin 61, the first link pin 52, and the second link pin 62 are located on the same straight line, the stopper 5 causes the connecting shaft 41 to move within the oblong hole 42 and the two clamping portions 2a, 3a. Can be fixed at a position that minimizes the amount of spread of.

  Since the torsion coil spring 7 receives a torsional load around its axis and can transmit the load transmitted to one arm to the other arm, the end of one arm 7a is connected to the connecting shaft 41 by the axis. An elastic force is applied to the other end of the link member 9 so that the other arm 7b is engaged with the other end of the link member 9 and the stopper 5 rotates in the first rotation direction. Are arranged to give.

  The connecting shaft opening member 8 closes the two handle portions 2b and 3b, thereby holding the two knobs 12 and 13 of the hose band 10 between the two holding portions 2a and 3a, thereby setting the diameter of the main body 11 to a predetermined value. When the lever 6 is expanded to the size, the lever 6 is brought into contact with a portion 6a of the lever 6 that rotates the lever 6 in the first rotation direction.

  The connecting shaft opening member 8 is fixed to the plier main body 2 on which the connecting bolt 41 is pivotally supported, for example, by adjusting the adjusting bolt 81 and the adjusting bolt 81 that are brought into contact with the portion 6 a of the lever 6. The adjusting bolt support member 82 and a fastening nut 83 screwed into the adjusting bolt 81 to fix the position of the adjusting bolt 81 protruding from the adjusting bolt support member 82 by a preset length. ing.

  As shown in FIG. 2, the connecting shaft opening member 8 configured in this way causes the adjustment bolt 81 to protrude from the adjustment bolt support member 82 by a preset length L and is adjusted in the protruding state by the fastening nut 83. Since the bolt 81 can be fixed, it is possible to correspond to a plurality of hose bands having different sizes with a single hose band mounting tool. 2A shows a case where the protruding length L is short, and FIG. 2B shows a case where the protruding length L is long.

  Further, it is preferable to provide a rotation means (not shown) for rotating the adjustment bolt support member 82 so that the tip of the adjustment bolt 81 does not come into contact with the portion 6 a of the lever 6. As such a rotating means, as shown in FIGS. 3A and 3B, any existing mechanism can be used as long as the adjusting bolt 81 can be rotated and moved in parallel with the surface portion of the pliers body 2. May be used. When the rotation means for rotating the adjustment bolt support member 82 as described above is provided, as shown in FIG. 3, the adjustment bolt support member prevents the tip of the adjustment bolt 81 from coming into contact with the portion 6a of the lever 6 by the rotation means. When 82 is rotated, it can be used as a general pliers.

  In addition, as shown in FIGS. 1A and 1B, the hose band attaching tool 1 is a dead point where the second pin 61, the first link pin 52, and the second link pin 62 are located on the same straight line. In this state, the stopper pins 31 and 32 that abut against the link member 9 so as to prevent the stopper 5 from rotating in the second rotational direction project from the pliers body 3 in which the oblong holes 42 are formed. The stopper pin 31 is in contact with one end of the link member 9, and the stopper pin 32 is in contact with the other end of the link member 9.

  Since the stopper pins 31 and 32 are projected from the plier body 3 in this manner, the load applied to the torsion coil spring 7 can be reduced, so that the durability of the torsion coil spring 7 is improved.

  The hose band attaching tool 1 has one end fixed to the connecting shaft 41 and the other end fixed to a predetermined position of the plier body 3 in which the oval hole 42 is formed. A tension spring 70 that always pulls in the direction of the position that minimizes the amount of expansion of the two sandwiching portions 2a and 3a is provided.

  In this way, one end of the tension spring 70 is fixed to the connecting shaft 41 and the other end is fixed to a predetermined position of the plier body 3 in which the oblong hole 42 is formed, so that the elastic force of the torsion coil spring 7 is increased. It can be reinforced with elastic force.

  Further, as shown in FIG. 4, the hose band attaching tool 1 is rotatably supported by the third pin 201 on the plier main body 3 in which the oval hole 42 is formed, and the connecting shaft 41 is placed in the oval hole 42. A striker 200 that rotates in the second rotation direction with the third pin 201 as a rotation center according to the sliding amount when sliding in the direction to increase the amount of expansion of the two sandwiching portions 2a and 3a, It is provided in the plier main body 3 in which the circular hole 42 is formed, and the connection shaft 41 has a third amount according to the sliding amount that slides in the direction of increasing the expansion amount of the two holding portions 2a and 3a in the oblong hole 42. And a detecting means 300 for detecting the movement of the striker 200 rotating in the second rotation direction with the pin 201 as the rotation center.

  The striker 200 provided in the plier main body 3 in which the oblong hole 42 is formed in this manner includes, for example, the connecting shaft 41, the tension spring 70, the stopper 5, the lever 6, the link member 9, the torsion coil spring 7, and the connecting shaft open. Since the member 8 is provided on the surface portion of the plier main body 3, it can be provided by the third pin 201 on the surface of the bracket 202 fixed to the plier main body 3 to cover these parts in order to protect them.

  As the detection means 300, for example, a lever switch is preferable. Since the switch can be controlled by sliding the lever switch by swinging or tilting the lever, the lever switch can be interlocked with the connecting shaft 41 sliding through the oblong hole 42. Here, tilting means tilting to one side and moving. The detection means 300 is not limited to a lever switch, but is a push switch that controls the switch by pressing a button on the connecting shaft 41 that slides through the oblong hole 42, and a coil or capacitor that is moved by the sliding of the connecting shaft 41. Measures changes in the position of the moving axis caused by a proximity switch that performs detection using changes in oscillation frequency and output amplitude, pressure sensor that detects pressure applied by the slide of the connecting shaft 41, or acceleration sensor It can be detected by various switches and sensors such as an acceleration sensor.

  Such detection means 300 includes a switch (not shown) that transmits a detection signal in accordance with the detection operation of the sensor. A receiver (not shown) that receives a detection signal from the transmitter is disposed in a management room in a production line of an automobile, for example. The transmitter and the receiver are preferably wireless communication capable of omitting wiring, but may be wired communication.

  Since the striker 200 and the detection means 300 are provided, the striker 200 can be interlocked with the connecting shaft 41 that reliably slides, so that the main body 11 of the hose band 10 has securely tightened the hose H from the outer periphery. Can be detected.

  As shown in FIGS. 1 (A) and 1 (B), the hose band attaching tool 1 is connected to each of the handle portions 2b and 3b of the pair of pliers main bodies 2 and 3, and has two handles using the connecting shaft 41 as a fulcrum. The elastic means 400 which always opens the parts 2b and 3b and the two clamping parts 2a and 3a is provided.

Thus, by providing the elastic means 400 in each of the handle portions 2b and 3b of the pair of pliers main bodies 2 and 3, the handle portions 2b and 3b of the pair of pliers main bodies 2 and 3 are forcibly opened by the elastic means 400. Therefore, the holding interval between the two holding portions 2a and 3a can be set at a position where the two knob portions 12 and 13 of the hose band 10 can be easily picked, and the workability of the tool can be improved.
The elastic means 400 is preferably a compression coil spring 401. That is, pins 402 and 403 project from the opposing portions of the two handle portions 2b and 3b so as to face each other, and a compression coil spring 401 is wound around these pins 402 and 403. Here, “winding” means wearing the outer side in a wound state. Thus, the durability of the spring body can be improved by using the elastic means 400 as a compression coil spring.

  The elastic means 400 is not limited to a compression coil spring but may be a torsion coil spring (not shown). In the case of this torsion coil spring, one arm is connected to the handle portion 2b of the plier body 2 and the other arm is connected to the handle portion 3b of the plier body 3, and the two handle portions 2b and 3b are connected to the connecting shaft 41. Use as a fulcrum so that it can be opened at all times.

  For example, as shown in FIG. 5, the hose band 10 for mounting the hose H to the upper / hose mounting port or the lower / hose mounting port of the radiator with the hose band mounting tool 1 configured as described above, 11 is formed in a plate shape narrower than the basic width of the main body 11, and one of the portions in the width direction at a position slightly located on the main body 11 side from the knob portion 12. A locking arm portion 14a that is bent toward the substantially radial direction of the main body 11 is formed at the edge portion of the main body 11. Further, the knob 13 is provided with a locking hole 15 into which the knob 12 can be inserted. The locking hole 15 is formed in a staircase shape, the first staircase portion 15a is formed so that the locking arm portion 14a can be inserted therein, and the second staircase portion 15b is inserted so that the locking arm portion 14a cannot be inserted therethrough. Is formed. Note that a wall portion 13a with which the locking arm portion 14a abuts is formed above the second stepped portion 15b in the locking hole 15 of the knob portion 13.

  In the hose band 10 formed in this way, as shown in FIG. 5A, the locking arm portion 14a of the knob portion 12 is inserted into the locking hole 15 of the knob portion 13, and the locking arm portion 14a is The locking hole 15 is positioned on the second stepped portion 15 b side so as to be locked to the wall portion 13 a of the knob portion 13. In this state, the main body 11 of the hose band 10 is maintained at a diameter that allows the hose H to be inserted against the elastic force in the direction of reducing the diameter of the main body 11.

  In order to fix the hose band 10, in which the main body 11 is maintained at a diameter that allows the hose H to be inserted, to the hose H, the locking arm portion 14 a of the knob portion 12 is connected to the second hole of the locking hole 15 of the knob portion 13. Shifting the surface of the wall portion 13a of the knob portion 13 with the two knob portions 12, 13 sandwiched between the pair of pliers main bodies 2, 3 so as to enter the staircase portion 15b side, By releasing the locked state between the portion 14a and the wall portion 13a, the main body 11 of the hose band 10 can tighten the hose H by the elastic force in the direction of reducing the diameter of the main body 11. In addition, the predetermined magnitude | size which expands the diameter of the main body 11 of the hose band 10 shown to FIG. 5 (A), (B) becomes a magnitude | size for performing this operation | movement.

  The operation of the hose band attaching tool 1 of the present invention configured as described above will be described based on FIGS. 6 (A), (B), and (C). The hose band 10 shown in FIGS. 2A and 2B is used. Further, a lever switch is used for the detection means 300. The hose band 10 is assumed to have a hose H inserted in advance.

  As shown in FIG. 6A, the hose band attaching tool 1 has a stopper 5 that is forcibly rotated in the first rotational direction by the elastic force of the torsion coil spring 7 before the tool is in an initial state, that is, before use. As a result, the connecting shaft 41 is fixed at a position that minimizes the amount of expansion of the two holding portions 2a and 3a within the oblong hole 42, and the second pin 61, the first link pin 52, and the second pin The link pin 62 is fixed at a dead point.

  To tighten the hose H with the hose band 10 through which the hose H is inserted using the tool in the initial state, as shown in FIG. 6B, the hose H is forcibly opened in advance by the elastic force of the elastic means 400. The knob portions 12 and 13 of the hose band 10 are picked by the handle portions 2b and 3b of the pair of pliers main bodies 2 and 3. At this time, the connecting shaft 41 is not in contact with the striker 200.

  Further, by rotating the connecting shaft 41 at a position that minimizes the amount of expansion of the two holding portions 2a and 3a in the oblong hole 42, the two handle portions 2b and 3b of the pair of pliers main bodies 2 and 2 When the two knobs 12 and 13 of the hose band 10 are clamped from the state where the two clamp parts 2 a and 3 a are opened, the locking arm part 14 a of the knob 12 of the hose band 10 is inserted into the locking hole 15 of the knob 13. On the surface of the wall portion 13a of the knob portion 13 in a state where the two knob portions 12, 13 are gripped by the pair of pliers main bodies 2, 3 so as to enter the second stepped portion 15b side. And the locked state of the locking arm portion 14a and the wall portion 13a is released.

  At this time, as shown in FIG. 6 (C), the connecting shaft opening member 8 closes the two handle portions 2b and 3b so that the two gripping portions 12a and 2a of the hose band 10 have two gripping portions 12a and 3a. When the diameter of the main body 11 is expanded to a predetermined size by sandwiching 13, the lever 6 is configured to come into contact with a portion 6 a of the lever 6 that rotates in the first rotation direction. By closing 2b and 3b, the lever 6 rotates in the first rotation direction with the second pin 61 as the center of rotation, so the stopper 5 rotates in the second rotation direction via the link member 9. Will do. As a result, the connecting shaft 41 slides in the direction of increasing the amount of expansion of the two sandwiching portions 2a, 3a within the oblong hole 42, so that the two sandwiching portions 2a, 3a have only the sliding length of the oblong hole 42. By opening, the two knobs 12 and 13 of the hose band 10 can be returned to their original positions by the elastic force of the main body 11. Therefore, the hose band 10 can tighten the hose H by the elastic force of the main body 11. At this time, since the connecting shaft 41 tilts the lever of the lever switch, the switch is turned on and a detection signal is transmitted from the transmitter. Therefore, the hose band body reliably secures the hose at the place where the receiver is disposed. It can be confirmed that the bolt has been tightened from the outer periphery. As a result, it can be determined that the two knobs 12 and 13 of the hose band 10 are clamped due to a malfunction of the tool.

  In this state, if the two clamping portions 2a and 3a are removed from the two knobs 12 and 13 of the hose band 10, the elastic force of the main body 11 of the hose band 10 is not applied to the two clamping portions 2a and 3a. Therefore, the stopper 5 is forcibly rotated in the first rotation direction via the link member 9 by the elastic force of the torsion coil spring 7. As a result, the connecting shaft 41 slides to a position that minimizes the amount of expansion of the two holding portions 2a and 3a in the oblong hole 42, so that the two holding portions from the two knobs 12 and 13 of the hose band 10 By simply removing 2a and 3a, the tool can be brought into the initial state.

  Thus, according to the hose band attaching tool 1, one hose band attaching operation can be completed by only one gripping operation, and no malfunction occurs even if the tool is accidentally dropped. It is possible to prevent idling. The hose band attaching tool 1 can prevent idle driving because the plier connecting mechanism 4 is a combination of a simple shape of a connecting shaft 41 that is a round shaft and an oblong hole 42. This is because it is possible to greatly reduce the wear caused by rubbing due to the rotational motion or slide motion of 41 and improve the durability.

  The hose band 10 is not limited to the one shown in FIG. 5, and the two knobs 12 and 13 can be gripped by the hose band attaching tool 1 against the elastic force of the main body 11 and attached to the hose H. Any configuration may be used if possible.

  The hose band attaching tool 1 of the present invention is not limited to the upper / hose attaching port and the lower / hose attaching port of the radiator of the automobile, but an automotive heater, a fuel pump, etc. for tightening the hose band to the hose, an air conditioner, It can also be used for household appliances such as refrigerators.

  Although the present invention has been described with the specific embodiments shown in the drawings, the present invention is not limited to the embodiments shown in the drawings, and is known so far as long as the effects of the present invention are achieved. It goes without saying that any configuration can be adopted.

DESCRIPTION OF SYMBOLS 1 ... Hose band installation tool 2, 3 ... A pair of pliers main body 2a, 3a ... Clamping part 2b, 3b ... Handle part 4 ... Plier connection mechanism 41 ... Connection shaft 42 ... Oval hole 5 ... Stopper 51 …… First pin 52 …… First link pin 6 …… Lever 61 …… Second pin 62 …… Second link pin 7 …… Torsion coil spring 7a …… One arm 7b …… The other arm 8... Connecting shaft release member 81... Adjustment bolt 82... Adjustment bolt support member 83... Fastening nut 9. …… Third pin 300 ...... Detecting means 400 ...... Elastic means 401 ...... Compression coil spring

10 ... Hose band 11 ... Body 12, 13 ... Knob H ... Hose

Claims (8)

A main body in which a belt-like member having an elastic force is formed in an annular shape, and two ends of the main body are extended to both ends in a state of being bent in a substantially radial direction of the diameter of the main body after intersecting the two. In a hose band mounting tool for mounting a hose band composed of two knobs on a hose by sandwiching the two knobs against the elastic force of the main body,
A pair of pliers main bodies formed from a clamping part and a handle part extending from the clamping part;
In order to connect the pair of pliers main bodies in a crossed state, a connecting shaft is pivotally supported at one facing portion of the pair of pliers main bodies so as to protrude toward the other facing portion. The other facing portion is formed with an oblong hole into which the connecting shaft protruding from the one facing portion is slidably fitted, and the connecting shaft serves as a fulcrum according to opening and closing of the two handle portions. When opening and closing the two clamping parts, a plier coupling mechanism that changes the amount of expansion of the two clamping parts by changing the arc center of both ends of the oblong hole that slides the coupling shaft;
The plier body formed with the oval hole is rotatably supported by a first pin. When the first pin is rotated around the first pin in the first rotation direction, the connecting shaft is moved to the oval hole. When the connecting shaft is slid in the direction of increasing the amount of expansion of the two holding portions within the oblong hole, the amount of sliding is fixed. And a stopper formed so as to rotate in a second rotation direction opposite to the first rotation direction with the first pin as a rotation center according to
The other end of the link member that is rotatably supported by a second pin on the pliers main body in which the oblong hole is formed, and whose one end is rotatably connected to the stopper via the first link pin. In the case of a dead point where the second pin, the first link pin, and the second link pin are located on the same straight line, the stopper is pivotally connected to the second link pin via a second link pin. And a lever that fixes the connecting shaft in a position that minimizes the amount of expansion of the two clamping parts in the oblong hole,
Wrapped around the second pin, one end of one arm is fixed to a plier body on which the connecting shaft is pivotally supported, the other arm is engaged with the other end of the link member, and the stopper A torsion coil spring that imparts an elastic force to the other end of the link member so that the first rotation direction rotates in the first rotation direction;
The connecting shaft is fixed to a pivoted pliers main body, and the two handle portions are closed, whereby the two gripping portions of the hose band are clamped by the two clamping portions, and the diameter of the main body is determined. A hose band attaching tool, comprising: a connecting shaft releasing member that abuts against a portion of the lever that rotates the lever in the first rotation direction when the lever is expanded to a predetermined size.   The link member so that the stopper does not rotate in the first rotational direction in the state of the dead point where the second pin, the first link pin, and the second link pin are located on the same straight line. The hose band attachment tool according to claim 1, wherein a stopper pin that abuts on the protrusion protrudes from a plier main body in which the oblong hole is formed. The connecting shaft release member is
An adjustment bolt for bringing the tip into contact with the part of the lever;
An adjustment bolt support member that is fixed to a plier body on which the adjustment bolt is screwed and the connecting shaft is pivotally supported;
2. A fastening nut that is screwed to the adjustment bolt to fix the position of the adjustment bolt protruding from the adjustment bolt support member by a preset length. Or the hose band installation tool of Claim 2.   4. The hose band mounting tool according to claim 3, further comprising a rotating means for rotating the adjustment bolt support member so that the tip of the adjustment bolt does not contact the portion of the lever.   One end is fixed to the connecting shaft, and the other end is fixed to a predetermined position of the pliers main body in which the oblong hole is formed, and the connecting shaft is expanded in the oblong hole by the amount of expansion of the two clamping portions. The hose band attachment tool according to any one of claims 1 to 4, further comprising a tension spring that always pulls in a direction of a position to be minimized. When the pliers main body formed with the oval hole is rotatably supported by a third pin, and the connecting shaft slides in the oval hole in a direction to increase the amount of expansion of the two holding parts, A striker that rotates in the second rotation direction around the third pin according to the amount of sliding;
The third pin is provided in a plier main body in which the oblong hole is formed, and the connecting shaft slides in a direction to increase the amount of expansion of the two holding portions in the oblong hole. 6. The apparatus according to claim 1, further comprising: a detecting unit that detects the movement of the striker that rotates in the first rotation direction with the rotation center as a rotation center. The hose band mounting tool described.   An elastic means connected to each of the handle portions of the pair of pliers main bodies and having the connecting shaft as the fulcrum to always open the two handle portions and the two holding portions is provided. The hose band attachment tool according to any one of claims 1 to 6.   The hose band attachment tool according to claim 7, wherein the elastic means is a compression coil spring disposed between the two handle portions.

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