JP5740161B2 - Manual binding tool - Google Patents

Description

  The present invention relates to a manual bundling tool for a bundling band suitable for one-handed operations such as telegraph work in high places.

  As a conventional manual binding tool, as disclosed in Patent Document 1, a first lever (1) and a second lever (2) that can be gripped with fingers, a cutting lever for cutting a band (3 ) Is known. This is because the band of the binding band wound around the binding object can be tightened by grasping the first and second levers (1) and (2), and the first lever is changed by gripping the fingers. It is a convenient tool that can cut the band by grasping (1) and the cutting lever (3).

  The manual type bundling tool has been improved so that the setting operation of the tool tip to the band part of the bundling band can be performed easily and easily, and it is difficult to get tired even if the number of bundling operations of a number of wires and wire harnesses is performed. It is easy to use. However, depending on the type of bundling work, it has been found that even if an excellent manual type bundling tool disclosed in Patent Document 1 is used, it is difficult to use, and bundling work efficiency is not so good.

  For example, in a bundling operation that climbs up a utility pole or steel tower, you can use one hand to hold a bundling wire that is to be bundled or a fixed bar for stable support at high places, while using a manual bundling tool with the other hand. There are cases where one-handed work is required to perform the bundling work. In such a case, in the bundling tool according to Patent Document 1, the grip is changed when shifting from the band tightening operation to the cutting operation, that is, from the state of gripping the first and second levers to the state of gripping the first lever and the cutting lever. At the time of switching, it is necessary to change the position while supporting with a finger different from the hand being held, or to change the position while the tool is once placed and supported.

  In the former hand changing means, it is necessary to support the bundling tool with the other finger while the hand is being changed, and this is a two-handed operation. Therefore, it is difficult to change the hand when the one-handed operation is required. The latter hand changing means is capable of one-handed work, but in high-place work such as a steel tower, it is often not an environment in which a tool can be temporarily placed around, so that the work is substantially difficult (or can be performed). Absent). Therefore, further improvement is necessary in order to perform the tightening operation and the cutting operation without changing the fingers or placing a tool once. Even in a general work environment such as in a factory, bundling work with a conventional bundling tool that needs to be changed once is inconvenient due to the time required for bundling work, resulting in poor bundling efficiency. There was still room for improvement in this respect.

JP 2009-262965 A

  The object of the present invention has been improved so that the tightening operation and the cutting operation can be satisfactorily performed with only one hand without changing hands so that it can be conveniently used even in unstable high-altitude work or the like, and the bundling work efficiency is improved. It is in the point which develops and provides a manual type binding tool.

The invention according to claim 1 is a manual binding tool,
A tightening mechanism c forcibly pulling the band part a protruding through the head part b with respect to the head part b, and the band part a tightened by the tightening mechanism c from the head part b in the tightening direction A cutting mechanism e that cuts at a portion in the vicinity of the head portion b in a portion protruding to the lower side, a first lever 1, a second lever 2, a cutting operation portion 3 that controls the movement of the cutting mechanism e, and the first A tightening linkage portion d for linking the tightening mechanism c and the first and second levers 1 and 2 so as to operate the tightening mechanism c by gripping the 1 lever 1 and the second lever 2 with fingers; Have
The cutting operation unit 3 is provided separately from the first and second levers 1 and 2,
The cutting operation unit 3 can be operated by operating the fingers in the same direction as the grasping direction of the fingers in the state of grasping the first and second levers 1 and 2. It is characterized by.

The invention according to claim 2 is a manual binding tool,
A tightening mechanism c forcibly pulling the band part a protruding through the head part b with respect to the head part b, and the band part a tightened by the tightening mechanism c from the head part b in the tightening direction A cutting mechanism e that cuts at a portion in the vicinity of the head portion b in a portion protruding to the lower side, a first lever 1, a second lever 2, a cutting operation portion 3 that controls the movement of the cutting mechanism e, and the first A tightening linkage portion d for linking the tightening mechanism c and the first and second levers 1 and 2 so as to operate the tightening mechanism c by gripping the 1 lever 1 and the second lever 2 with fingers; Have
The cutting operation unit 3 can be operated with any finger in the state where the first and second levers 1 and 2 are being gripped,
The first lever 1 having a band holding part g that can hold the band part a at the tip part, and a band insertion part m that cannot pass through the head part b and allow the band part a to pass through. The tightening linkage portion d is configured by pivotally connecting the second lever 2 provided at the tip portion at the intermediate portion in the longitudinal direction of each of the levers 1 and 2, and the second lever in the first lever 1 is configured. The first base end portion 1r on the opposite side of the band holding portion g with respect to the pivot connection point P with respect to 2 and the band with respect to the pivot connection point P with the first lever in the second lever The band holding part g and the band insertion part m are configured to function as the tightening mechanism c by the separation movement of the band holding part g and the band insertion part m by gripping with the fingers the second base end part 2r on the opposite side to the insertion part m,
The cutting mechanism e is configured by providing a cutting blade 33 that is slidably mounted on the band insertion part m, and with the fingers of the first base end part 1r and the second base end part 2r. A cutting linkage portion s for linking the cutting blade 33 and the first and second levers 1 and 2 so as to slide the cutting blade 33 by grasping;
When the cutting operation unit 3 is not operated, the tightening mechanism c functions by gripping the first base end 1r and the second base end 2r with fingers, and the cutting operation unit 3 is operated. Sometimes, the cutting operation portion 3, the tightening linkage portion d, and the cutting linkage portion so that the cutting mechanism e functions by grasping the first base end portion 1r and the second base end portion 2r with fingers. s is linked.

The invention according to claim 3 is the manual type bundling tool according to claim 2, wherein the cutting linking portion s is configured to slide the cutting blade 33 and the swing operation tool 9 includes the swing operation tool 9. A switching member 14 that switches between a cutting action state that swings together with the first lever 1 and a non-action state that swings together with the second lever 2;
When the cutting lever constituting the cutting operation unit 3 is operated to swing, the switching member 14 is moved from the standby position t to the operating position v, the cutting action state is turned off, and the cutting lever 3 is operated to swing. When not performed, the switching member 14 is maintained at the standby position t so that the non-operating state is disturbed.

  According to a fourth aspect of the present invention, in the manual binding tool according to the third aspect, the swing operation tool 9 swings on a pivot shaft 15 that pivotally connects the first and second levers 1 and 2. It is characterized by being pivotally supported.

  According to a fifth aspect of the present invention, in the manual type bundling tool according to the fourth aspect, the tip end portion 3a of the cutting lever 3 is pivotally supported on the pivot shaft 15 so that the thumb can be operated. It is characterized by being arranged and configured in a state.

  The invention according to claim 6 is the manual type bundling tool according to any one of claims 1 to 5, wherein the tightening force adjusting device C that allows the tightening force of the band part a by the tightening mechanism c to be increased or decreased is provided. It is characterized by being equipped.

According to the invention of claim 1, although described in detail in the section of the embodiment , the band portion can be tightened by grasping the first lever and the second lever with fingers, and the cutting operation portion is turned off. The band part can also be cut. Since the cutting operation unit can be operated with fingers while holding the first and second levers, the operation of tightening the band unit in the one-handed operation state while holding the first and second levers with fingers is also possible. The cutting operation of the band part can also be performed. As a result, it has been improved so that it can be used conveniently even in unstable high-altitude work, etc., and tightening and cutting operations can be performed well with only one hand without changing the grip so that the binding work efficiency is improved. A tool can be provided.

  According to the invention of claim 2, when the cutting operation part is not operated, the tightening mechanism is caused to function by the separation movement of the band holding part and the band insertion part by grasping the first and second levers, and when the cutting operation part is operated. The switching structure in which the cutting blade is moved by sliding the first and second levers and the cutting mechanism functions can be mechanically realized by a tightening linkage portion, a cutting linkage portion, or the like. Therefore, there is an advantage that the above-described effect of the invention of claim 1 can be produced in a preferable state that is inexpensive and functions tough. In this case, as in claim 3, it is advantageous that the cutting linkage part is constituted by a switching member that is operated by a swinging operation of the cutting lever and a swinging operation tool for operating the cutting blade.

  Further, as in the invention of claim 4, the swing operation tool is pivotally supported on the pivot shaft to which the first and second levers are pivotally connected, or as in the invention of claim 5, If the cutting lever is pivotally supported on the pivot shaft so that the tip of the cutting lever can be operated by the thumb, a manual binding tool having a more rational structure can be obtained.

Side view of a manual binding tool (Example 1) Front view of the manual binding tool in FIG. FIG. 2 is a partially cutaway plan view of the main part of the manual bundling tool in FIG. Rear view of the manual bundling tool of FIG. Partially cutaway side view showing the internal structure of the manual bundling tool of FIG. Partially cutaway side view showing the internal structure when the band is cut Action diagram of moving the manual binding tool laterally and taking the band part into the tool tip Action diagram showing tightening start state of band part The band tightening action is shown, (a) is a side view in the middle of gripping, and (b) is a side view of the most gripped state. Side view showing a state in which the first lever is bent due to the operation of the tightening force adjusting device Side view showing the operating state of the cutting lever when starting the band cutting operation Side view showing the state of the band cutting operation The tightening force adjusting device is shown, (a) is a structural diagram, (b) is an adjusting action diagram.

  Embodiments of a manual binding tool according to the present invention will be described below with reference to the drawings. For the purpose of facilitating the understanding of the drawings, there are many places in each figure that are not necessarily drawn by an accurate third trigonometric method, such as intentionally making a place that is a broken line intentionally a solid line.

[Example 1]
As shown in FIGS. 1 to 6, the manual binding tool A (hereinafter simply referred to as “binding tool A”) includes a first lever 1 having a band holding portion g at a tip portion and a lateral groove (band insertion). An example of a part) The 2nd lever 2 which has m in the front-end | tip part, the cutting lever 3, the tightening mechanism c which tightens the band part a of the binding band B, the cutting mechanism e which cuts the band part a, and the band part a The tightening force adjusting device C is capable of adjusting and setting the tightening force. The binding band B is of a type consisting of an endless band part a and a head part b through which the band part a is passed.

  First, the outline procedure of the bundling operation of the electric wire bundle by the bundling tool A will be described. First, although not illustrated, the bundling formed by passing the long band portion a through the head portion (bundling head) b by a finger operation or the like. A pre-processing step is performed in which the band B is wound around the wire bundle K and lightly tightened into a temporary binding state. Next, as shown in FIG. 7, the band part a of the binding band B wound around the wire bundle (an example of the binding target) K is moved to the lateral groove m of the band holding part g by moving the binding tool A laterally. As shown in FIG. 9, one or more tightening steps are performed for gripping the first lever 1 and the second lever 2 held by the right finger and tightening the band portion a, as shown in FIG. Do it once.

  When the tightening force of the band part b reaches a set value, as shown in FIG. 10, the first lever 1 is bent back and swings, and further tightening becomes impossible. Therefore, when the tightening is disabled, the cutting lever 3 is swung by the thumb operation as shown in FIGS. 11 and 3B, and the binding tool A is switched from the tightening operation state to the cutting operation state. Then, the first and second levers 1 and 2 are held again, and a cutting step (see FIGS. 5 and 12) is performed in which the cutting blade 33 is slid to cut the band portion a near the head portion b. That is, the binding work of K ends.

  As shown in FIGS. 1 to 4, the first lever 1 has a band holding part g capable of holding the band part a at the tip part, and is mainly a thick steel plate provided with the band holding part g. The front end lever portion 1A is made up of a main lever portion 1B made of a thin steel plate bent in a substantially U shape and provided with a tightening force adjusting device C or the like. The tip lever portion 1A and the main lever portion 1B are pivotally connected by a pin-like main shaft (an example of a pivot shaft) 15 having a main shaft center P so as to be relatively rotatable. Usually, the tightening force is adjusted. Due to the elastic force of the device C, the bent base end 1a of the distal lever portion 1A and the stepped wall 1b of the main lever portion 1B come into contact with each other and the lever portions 1A, 1B are integrally swung around the main axis P. Maintained.

  The tip lever portion 1A is made of a steel plate made of a flat plate portion 1d formed by bending the bending base end 1a and the tip clamping wall 1c, and includes a locking piece 4 and a roller 34 that form the main part of the tightening mechanism c. It has. As shown in FIGS. 1, 5, and 7, the roller 34 is made of a metal cylinder (not shown) that is loosely fitted to a support shaft 11 that is installed using a block material 10 on the end of the flat plate portion 1d on the main lever portion 1B side. Boss-shaped parts. The roller 34 is normally fitted in an engagement recess 19 b of a regulating member (described later) 19.

  The locking piece 4 includes a ceiling wall 4a and a pivotal support wall 4b for locking the band portion, and a non-slip portion 7 having a jagged shape in side view is formed on the upper side portion of the swinging direction on the upper surface of the ceiling wall 4a. Is formed. The locking piece 4 has a pivotal support wall 4b externally fitted to a pin shaft 6 that extends over a flat plate portion 1d and a bracket 5 made of a bent steel plate that has a substantially Z shape as viewed from the side. In this free state (see FIGS. 1 and 5), the tip of the ceiling wall 4a is supported by the swinging operation tool 9 in the free state (see FIGS. 1 and 5). It is elastically urged in the direction of arrow A so as to contact the back surface (see FIG. 5).

  The main lever portion 1B is made of a steel plate that is bent in a U-shape and includes a pair of left and right side wall portions 1e and 1f and a connecting wall portion 1g, and a first base end portion 1r covered with a synthetic resin cover grip 13; And a structure portion 1k including left and right side wall portions 1e and 1f including the main axis P. The main portion of the tightening force adjusting device C is included in the first base end portion 1r, and the tightening linkage portion d and the cutting linkage portion s are included in the structure portion 1k.

  As shown in FIGS. 1, 3 and 7, a flat and substantially pan-shaped flange member 16 fixed to the inside of the left side wall 1 e by screws is provided, and a hole in the left side wall 1 e (not shown) A switching member 14 having a tapered operation portion 14a protruding from the flange member 16 is accommodated in the flange member 16 so as to be movable in and out. The switching member 14 is recessed in the operated portion 14a so as to form a flange 14b for preventing escape from the left side wall portion 1e, a columnar action rod 14c inserted into and removed from the insertion hole 9c, and a root portion of the action portion 14c. It is a circular block body provided with an annular deep groove (not shown) to be formed and an operated portion 14a. Normally, the operated portion 14a clearly protrudes from the left side wall portion 1e by the coil spring 17 provided over the bottom wall 16a of the flange member 16 and the annular deep groove (not shown) in a state of being covered with the action rod 14c. The biased position is maintained at the standby position t.

  As shown in FIGS. 1 to 8, the second lever 2 has a bent plate portion 2 </ b> A at the tip and a second base end portion 2 r that is a grip portion at the base end, and is loosely fitted to the main shaft 15. A second main body 2B made of thick steel plate material, and a synthetic resin grip 12 is integrally provided on the second base end 2r. In addition to the lateral groove m described above, the bent plate portion 2A is equipped with a cutting blade 33 that is supported so as to be reciprocally slidable using a guide member 28 that is attached to the outer surface of the bending plate 2A. A long hole 29 is formed. The cutting blade 33 integrally includes a cutting edge 33a (see FIG. 2) slightly inclined with respect to the lateral groove m, an insertion hole 33b corresponding to the long hole 29, and an operation piece 33c formed to be bent. Yes.

  The second body 2B is provided with a cut-and-raised wall 2a for providing a return coil spring 30 between a pair of left and right spring receiving pieces 1u, 1u formed by bending from left and right side wall portions 1e, 1f of the first lever 1. It has been. A right-side spring receiving piece 1u that moves relative to each other is passed through the circular arc hole 32 formed in the second main body 2B so as to cut out and form the cut and raised wall 2a. The return coil spring 30 elastically biases the first and second levers 1 and 2 in the direction in which the first and second base end portions 1r and 2r are separated from each other, and bends with the holding wall 1c of the first lever 1 in a free state. The manual tool A is maintained in a closed posture (see FIGS. 1 and 5) in contact with the plate portion 2A. When the first and second base end portions 1r and 2r are gripped and operated against the elastic force of the return coil spring 30, the holding wall 1c and the bent plate portion 2A move away from each other, and the right side wall portion 1f of the first lever 1 moves. The lower end edge comes into contact with the cut-and-raised stopper 35 of the second main body 2B, and becomes an open posture (see FIGS. 6 and 9B) in which further relative swinging is prevented.

  As shown in FIGS. 1, 3, 5, and 6, the swing operation tool 9 includes a tip protrusion 9 a that reaches the lateral groove m, an operation protrusion 9 b for moving the cutting blade 33, and a switching member 14. It is a part made of thick steel plate material having an insertion hole 9c to be attached and detached, and is pivotally supported by the main shaft 15 so as to be able to swing the balance. On the lower side (grip 12 side) of the insertion hole 9c in the swing operation tool 9, a restricting projection 9d for preventing the operation of the switching member 14 in a posture other than the free state (closed posture) is formed. The swing operating tool 9 has a distal end protruding portion 9a on the back surface of the bent plate portion 2A by a winding spring 36 fitted to the main shaft 15 in a state where both ends are cut up and raised against the back surface of the operation protruding portion 9b and the wall 2a. Is maintained in the non-acting posture (the posture shown in FIG. 1 and FIG. 5) where it contacts.

  Thus, when the first and second levers 1 and 2 are gripped (when the cutting lever 3 is not operated), the swing operation tool 9 does not move relative to the second lever, and One lever 1 is in a state of swinging around the axis P. When the cutting lever 3 is operated, that is, when it is lowered and swung around the main axis P as shown in FIG. 3B, the switching member 14 is pushed in and the first lever and the rocking operation tool 9 are pushed. Are switched to a state of swinging together. Therefore, when the first and second levers 1 and 2 are gripped in this state, the swing operation tool 9 swings around the main axis P with respect to the second lever 2 and the cutting blade 33 is driven. (Details will be described later).

  As shown in FIGS. 1, 5, and 6, the band holding portion g includes a holding wall 1 c of the first lever 1 and a locking piece 4 that is urged to rotate in the direction of arrow A. As the first lever 1 and the second lever 2 are opened and swung by grasping the first and second base end portions 1r and 2r, the rocking operation tool 9 moves away, so that the locking piece 4 rotates around the pin shaft 6. Thus, the band part a can be sandwiched between the anti-slip part 7 and the clamping wall 1c. In this case, as shown in FIG. 8, since the anti-slip portion 7 is located on the lower side of the pin shaft 6 in the pulling direction of the band portion a, the locking piece 4 is pulled by pulling the band portion a. Tends to swing in the direction of the arrow A, and the self-locking action that the anti-slip portion 7 tries to come closer to the clamping wall 1c occurs, and the band portion a is firmly locked so as not to move in the pulling direction. be able to.

  As shown in FIGS. 1, 5, and 7 to 10, the tightening mechanism c has a bent plate portion 2 </ b> A that includes a lateral groove m that cannot pass the head portion b and that allows the band portion a to pass, And a band holding portion g. That is, the band that is self-locked and held by the band holding part g due to the separation movement of the band holding part g and the lateral groove m by gripping the first base end part 1r and the second base end part 2r with fingers. The part a and the head part b are separated, and as a result, the tightening mechanism c functions so that the length of the part wound around the binding target K in the band part a is shortened and tightened.

  As a structure, the tightening mechanism c includes the bent plate portion 2A having the lateral groove m, the clamping wall 1c, the locking piece 4, the bracket 5, the helical spring 8, and the like. And, the tightening linkage part d for linking the tightening mechanism c and the first and second levers 1 and 2 so as to operate the tightening mechanism c by grasping the first lever 1 and the second lever 2 with fingers, The first and second levers 1 and 2 are configured to be pivotally connected by using a main shaft 15 at an intermediate portion in the longitudinal direction thereof. More specifically, in addition to that, the swing operation tool 9 disposed between the bending plate portion 2A and the locking piece 4 and the tip protruding portion 9a are elastically attached so as to contact the bending plate portion 2A. It can be said that it is configured to have a winding spring 36 that energizes.

  The cutting lever 3 is a selection lever for switching the binding tool A to either the tightening action state or the cutting action state. The tightening action state is a state where the band part a can be pulled by gripping the first lever 1 and the second lever 2 with fingers, and the binding band B can be tightened. The cutting action state is the first lever 1 and The band portion a can be cut just before the head portion b by grasping the second lever 2 with fingers. That is, when the cutting lever 3 is operated to swing, the switching member 14 is moved from the standby position t to the operating position v to enter a cutting action state. When the cutting lever 3 is not operated to swing, the switching member 14 is standby. It is configured to be held at the position t and to be in a tightening action state (non-action state).

  As shown in FIGS. 1, 3, 4, and 7, the cutting lever 3 is a thick-wall steel plate component that is pivotally supported by the main shaft 15 outside the left side wall portion 1e of the first lever 1. A knob portion (an example of a tip portion) 3a, which is an operated portion to be operated by a finger, and a pressing piece 3b for pressing the switching member 14 are integrally provided. The cutting lever 3 can swing between a position where it abuts on the upper stop piece 37 formed by cutting and raising the left side wall portion 1 e and a position where it abuts on the lower stop piece 38. Cutting linkage that links the cutting blade 33 with the first and second levers 1 and 2 so that the cutting blade 33 is slid by the grasping of the first base end portion 1r and the second base end portion 2r with fingers. The part s includes the switching member 14 and the swing operation tool 9.

  When the cutting lever 3 constituting the cutting operation unit 3 is in the operated position h (see the phantom lines in FIGS. 1, 5 and 11) determined by the pressing piece 3 b contacting the operated unit 14 a of the switching member 14. As shown in FIG. 3A, the switching member 14 is in the standby position t where the operated portion 14a protrudes from the left side wall portion 1e, and the swing operation tool 9 swings integrally with the second lever 2. It has become. Then, as shown in FIG. 11, when the cutting lever 3 is lowered and swung by the thumb oy operation of the knob portion 3 b and moved to the operation position i in contact with the lower stop piece 38, as shown in FIG. The switching member 14 is pushed in the direction along the axis P direction by the component force of the pressing piece 3b, which is an inclined wall, pushing the tapered surface (not shown) of the operated portion 14a, and the action bar 14c is swung by the swing operation tool. 9 enters the insertion hole 9c, and the swing operation tool 9 switches to a state of swinging integrally with the first lever 1.

  As shown in FIGS. 5, 6, and the like, the cutting mechanism e includes a cutting blade 33 provided on the bent plate portion 2 </ b> A and a swing operation tool 9. As described above, when the cutting lever 3 is not operated, the swing operation tool 9 and the bending plate portion 2A, that is, the cutting blade 33 swing integrally, so that the cutting is performed no matter how much the first and second levers 1 and 2 are grasped. The blade 33 does not move. As shown in FIG. 3B and FIG. 11, the cutting lever 3 is swung to push the switching member 14, and the swinging operation tool 9 is switched to the state of swinging integrally with the first lever 1 and then the first. When the two levers 1 and 2 are gripped, the operation projecting portion 9b of the swing operation tool 9 and the bent plate portion 2A move away from each other. Thus, the operation protrusion 9b inserted in the insertion hole 33b pushes the cutting blade 33 upward via the operated piece 33c (see FIG. 12), and the cutting blade 33 that is slid and moved upward is the head portion. The band part a is forcibly entered between b and the bent plate part 2A, and the band part a is cut just before the head part b (see FIG. 6).

  The tightening force adjusting device C is a device for increasing or decreasing the tightening force of the band part a by the tightening mechanism c, and as shown in FIGS. 1, 5, 10, and 13, a restricting member 19 pivotally supported by a base shaft 18, The main lever portion 1B is provided with a slide member 20 that is slidable, a link 21 that is pivotally connected to each of these members 19 and 20, an adjustment screw shaft 22, a compression coil spring 23, and the like between the left and right side wall portions 1e and 1f. It is configured internally. The restricting member 19 is loosely fitted on a base shaft 18 that extends across the left and right side wall portions 1e, 1d, a connecting shaft 19a that is pivotally connected to the link 21, an engaging recess 19b that covers the roller 34, It is formed of a block material having a subsequent relief movement surface 19c.

  The slide member 20 formed by folding a strip-shaped steel plate has a U-shaped cross section through a pair of headed pin-shaped pin shafts 31 and 31 passing through a long hole 24 formed in the left and right side wall portions 1e and 1f. An inner portion of the first base end 1r is slidably mounted in the front-rear direction (longitudinal direction of the first base end 1r). A distal end portion of the screw shaft portion 22A of the adjustment screw shaft 22 is inserted on the proximal end side of the slide member 20 so as to be relatively rotatable and relatively slidable, and is jointly connected to one pin shaft 31 on the distal end side. The link 21 is pivotally connected in the state. The adjusting screw shaft 22 is turned to the left and right by externally fitting the locking boss 25 so as not to be relatively movable through an adjusting hole (not shown) that penetrates the proximal end wall 1t of the first base end 1r. The first lever 1 is movably equipped. A substantially rectangular marking member 26 facing the rectangular notch 13A of the cover grip 13 is screwed onto the screw shaft portion 22A, and the compression coil spring 23 is connected between the marking member 26 and the slide member 20 with the screw shaft portion. It is deployed in a state fitted in 22A.

  With such a configuration, the compression coil spring 23 presses and urges the restricting member 19 around the base shaft 18 in the direction indicated by the arrow B via the slide member 20 and the link 21, whereby the engaging recess 19 b of the restricting member 19 is a roller. The urging state is maintained in the engaged state fitted to 34. By turning the knob 22a to change the compression amount of the compression coil spring 23, the engagement urging force between the engagement recess 19b and the roller 34 can be changed, and the band portion a when the first lever 1 starts to bend and swing. The tensile strength, that is, the tightening force can be adjusted up or down. Therefore, normally, the restricting member 19 and the roller 34, that is, the front end lever portion 1A and the main lever 1 so that the first lever 1 functions as one component that swings and moves about the main axis P with respect to the second lever 2. The tightening force adjusting device C also functions to integrate the lever portion 1B.

  Even if the tightening force of the band portion a reaches the set value due to the separation movement of the clamping wall 1c and the bent plate portion 2A, if the first and second base end portions 1r and 2r are still gripped, the roller by the compression coil spring 23 The roller 34 is relatively disengaged from the engagement recess 19b and moves on the escape movement surface 19c against the engagement force between the engagement recess 34b and the engagement recess 19b, and the main lever portion 1B is moved around the main axis P. The tightening force adjusting device C functions so as to move downward with respect to the distal end lever portion 1A (moving closer to the second lever 2), that is, swing at the waist (see FIG. 10), and the tightening force does not increase any more.

  Since the set tightening force depends on the engagement force between the roller 34 and the engagement recess 19b, that is, the elastic force of the compression coil spring 23, the position of the marking member 26 is changed by the rotation operation of the knob 22a exposed to the outside. Is moved upward (to the regulating member 19 side) to compress the compression coil spring 23, the set value becomes high and the tightening force can be increased, and the position of the marking member 26 is lowered downward (to the knob 22a side). If the compression coil spring 23 is extended by being moved, the set value is lowered and the tightening force can be reduced. That is, if the knob 22a is turned clockwise so that the marking member 26 moves to the smaller number side shown on the display board 27 facing the notch 13A, the set tightening force becomes weaker (smaller), and the marking member moves toward the larger number side. If the knob 22a is turned counterclockwise so that 26 moves, the set tightening force becomes stronger (larger).

  FIG. 13A shows, as an example, a state in which the marking member 26 is closest to the knob 22a side and the compression coil spring 23 is most stretched and adjusted to a loose tightening force (scale “1” or less). At this time, the marking member 26 is located on the lower end side (knob 22a side) of the notch 13A. Further, FIG. 13B shows the most compressed strong tightening force (scale “5” position) in which the knob 22a is turned counterclockwise so that the marking member 26 is positioned on the upper end side (regulating member 19 side) of the notch 13A. ) Is set. The maximum length of the compression coil spring 23 is the length L shown in FIG. 13A, and the minimum length is the length S shown in FIG. Of course, L> S.

  Next, a series of bundling operations using the bundling tool A according to the first embodiment will be described. First, as shown in FIG. 7, the binding tool A is moved laterally as indicated by an arrow C, and the band portion a of the binding band B temporarily fixed to the binding target K in the pretreatment step is taken into the lateral groove m. A take-in process is performed and it is set as the state which can be tightened (refer FIG. 1). In the take-in process, after the lateral movement of the binding tool A, the binding tool A is moved slightly forward so that the bent plate portion 2A is brought closer to the head portion b, and the head portion b comes into contact with the bent plate portion 2A. Although it is desirable to be in the state, it is possible to tighten it even if it is a little apart. In FIG. 7, in order to show the internal structure, the steel plate portions (the tip lever portion 1A and the main lever portion 1B) are omitted.

  As shown in FIG. 1, the index finger hy, middle finger ny, ring finger ky, and little finger cy hold the second base end 2r (grip 12) and the thumb oy the first base end 1r (cover). In general, it is gripped while being turned to the grip 13). In this case, the first base end 1r is actually gripped around the root of the thumb oy in the palm rather than the thumb oy so as to grip the grip strength measuring device. When the band portion a is taken into the lateral groove m, the first and second levers 1 and 2 are moved to the maximum grip position (see FIG. 9B) where the right side wall portion 1f and the stopper 35 come into contact with each other. Tighten the band part a by grasping. First, when the first and second levers 1 and 2 are gripped at a slight angle from the free position j where the free state becomes the free state and come to the clamping start position f, as shown in FIG. As a result, the locking piece 4 swings in the direction of the arrow (see FIG. 5), and clamping of the band part a between the anti-slip part 7 and the part clamping wall 1c in the self-locking state is started.

  Since the head part b is dammed by the bent plate part 2A, as the gripping from the clamping start position f continues, the part of the band part a protruding from the head part b is as shown in FIG. The length of the portion of the band portion a wound around the binding object K by being pulled in the direction of the arrow D is reduced, and the binding object K is tightened. The tightening of the band part a by gripping acts up to the maximum gripping position n as shown in FIG. 9B. When the first and second base end portions 1r and 2r are released from gripping, the first and second levers 1 and 2 open and swing by the elastic biasing force of the return coil spring 30, and are locked at the end. The piece 4 returns to the standby position shown in FIGS. 1 and 5 to release the holding of the band part a, and the first lever 1 returns to the free position j. For simplification, in each drawing, the first lever 1 is depicted as being in a state of swinging with respect to the position of the second lever 2.

  A value that the tightening force of the binding band B (exactly, the tension of the band part a) is set by the tightening force adjusting device C by performing the above-described first and second levers 1 and 2 gripping operation once or a plurality of times. When the first lever 1 is reached, the first lever 1 swings and swings, and the tightening force does not increase any more and the value is maintained. That is, as shown in FIG. 10, the regulating member 19 escapes and swings from the roller 34 against the elastic force of the compression coil spring 23, so that the main lever portion 1B moves around the main axis P with respect to the tip lever portion 1A. The hip breaks and swings. FIG. 10 illustrates a state in which the first lever 1 is bent at a certain angle from the clamping start position f and swings. The operator knows that the set tightening force has been reached because the grip has suddenly lightened due to the hip breaking, and the tip lever portion 1A does not move even if the grip operation is further performed. Further tightening action by the tightening mechanism c becomes impossible.

  When the band portion a is tightened, as shown in FIG. 11, the knob portion 3b is then pushed with the fingertip of the thumb oy in the state where the first lever 1 is held in the free state where the first lever 1 is in the free position j. With the operation of pushing down, the cutting lever 3 is moved downward while swinging the first and second levers 1 and 2 with fingers, and the binding tool A is switched from the tightening operation state to the cutting operation state. Then, by performing a grasping operation while maintaining the cutting action state by the thumb oy, as shown in FIG. 12, the swing operation tool 9 and the bending plate portion 2A move relatively apart, and the operation protruding portion 9b is operated. The piece 33c is pushed and the cutting blade 33 is slid up and moved with respect to the bent plate portion 2A, so that the blade tip 33a enters between the head portion b and the bent plate portion 2A. When the first and second levers 1 and 2 are gripped, the band part a is cut just before the head part b by the cutting blade 33 that moves upward as shown in FIG.

  As described above, in the binding tool A according to the present invention, the first and second levers 1 and 2 (the first and second base end portions 1r and 2r) are held with fingers, that is, the other lever Conveniently capable of tightening the band part a (tightening action state) and cutting the band part a (cutting action state) in a one-handed operation state without re-gripping or re-gripping while assisting with fingers. It is considered to be easy to use. That is, when the cutting lever 3 is not operated, the tightening mechanism c functions by grasping with the fingers of the first base end portion 1r and the second base end portion 2r, and when the cutting lever 3 is operated, the first base end The cutting lever 3, the tightening linkage part d, and the cutting linkage part s are linked so that the cutting mechanism e functions by gripping the part 1r and the second base end part 2r with fingers. The cutting lever 3 is arranged and configured in a state of being pivotally supported by the pivot shaft 15 so that the knob portion 3a which is a tip portion thereof can be operated by the thumb.

[Another Example]
The cutting operation tool 3 may be operable with a finger other than the thumb oy (eg, forefinger hy). The cutting operation tool 3 can be variously modified such as a slide moving structure or a push button type in addition to the lever shape as in the first embodiment. Further, as a switching means between the tightening action state and the cutting action state, in addition to the mechanical means shown in the first embodiment, for example, an integrally rocking state of the first lever 1 and the second lever 2 of the rocking operation tool 9. It is also possible for the selection to be electrical with a magnetic force and its switch. When a general band in which a band part having a finite length and a head part are integrated is used as the binding band B, the band insertion part m may be a hole.

DESCRIPTION OF SYMBOLS 1 1st lever 1r 1st base end part 2 2nd lever 2r 2nd base end part 3 Cutting operation part, cutting lever 3a Tip part 9 Oscillating operation tool 14 Switching member 15 Pivoting shaft 33 Cutting blade a Band part b Head Part c Tightening mechanism d Tightening linkage part e Cutting mechanism g Band holding part m Band insertion part s Cutting linkage part t Standby position v Operating position

Claims (6)

A tightening mechanism that forcibly pulls the band portion that protrudes through the head portion with respect to the head portion, and a portion that protrudes from the head portion toward the lower side in the tightening direction of the band portion tightened by the tightening mechanism. Gripping by fingers of a cutting mechanism for cutting at a location near the head, a first lever, a second lever, a cutting operation unit for controlling the movement of the cutting mechanism, and the first lever and the second lever A tightening linkage portion for linking the tightening mechanism and the first and second levers so as to operate the tightening mechanism.
The cutting operation part is provided separately from the first and second levers,
A manual type bundling tool configured to be able to operate the cutting operation unit by an operation in the same direction as the gripping direction of any finger in a state where the first and second levers are gripped. A tightening mechanism for forcibly pulling the band portion protruding through the head portion with respect to the head portion, and the band portion tightened by the tightening mechanism in a portion protruding from the head portion toward the lower side in the tightening direction Gripping by fingers of a cutting mechanism for cutting at a location near the head, a first lever, a second lever, a cutting operation unit for controlling the movement of the cutting mechanism, and the first lever and the second lever A tightening linkage portion for linking the tightening mechanism and the first and second levers so as to operate the tightening mechanism.
The cutting operation unit is configured to be operable with any finger in a state where the first and second levers are gripped,
The first lever having a band holding portion capable of holding the band portion at the distal end portion, and the first lever having a band insertion portion at the distal end portion which is not allowed to pass through the head portion and is allowed to pass through the band portion. The two levers are pivotally connected to each other in the longitudinal direction of the levers to form the tightening linkage, and the band is held with respect to the pivotal connection point of the first lever with the second lever. The first base end portion on the opposite side to the first portion and the second base end portion on the opposite side to the band insertion portion with respect to the pivot connection point of the second lever with the first lever. It is configured to function as the tightening mechanism by separating the band holding part and the band insertion part by gripping,
The cutting mechanism is configured by providing a cutting blade that is slidably mounted on the band insertion portion, and the cutting is performed by grasping the first base end portion and the second base end portion with fingers. A cutting linkage portion for linking the cutting blade and the first and second levers so as to slide the blade;
When the cutting operation portion is not operated, the tightening mechanism functions by gripping the first base end portion and the second base end portion with fingers, and when the cutting operation portion is operated, the first base end portion is operated. as the cutting mechanism function in lump grip with fingers between the end portion and the second base end, manually type tie and the cutting operation section and the tightening linkage portion and said cutting linkage portion that is linked tool. The cutting linkage unit switches between a swing operation tool for slidingly moving the cutting blade, an operating state in which the swing operating tool swings with the first lever, and a non-operating state in which the swing operating tool swings with the second lever. And a switching member,
When the cutting lever that constitutes the cutting operation portion is swung, the switching member is moved from the standby position to the operating position to defeat the operating state, and when the cutting lever is not swung, the switching member. The manual type bundling tool according to claim 2, wherein the inactive state is kept in a standby position and the inactive state is suppressed.   The manual type bundling tool according to claim 3, wherein the swing operation tool is pivotally supported by a pivot shaft that pivotally connects the first and second levers.   The manual type bundling tool according to claim 4, wherein the cutting tool is arranged and configured so as to be swingably supported by the pivot shaft so that a tip of the cutting lever can be operated by a thumb.   The manual type bundling tool according to any one of claims 1 to 5, further comprising a tightening force adjusting device that can increase or decrease the tightening force of the band portion by the tightening mechanism.

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