EP2883802B1 - Manual bundling tool - Google Patents
Manual bundling tool Download PDFInfo
- Publication number
- EP2883802B1 EP2883802B1 EP12882589.0A EP12882589A EP2883802B1 EP 2883802 B1 EP2883802 B1 EP 2883802B1 EP 12882589 A EP12882589 A EP 12882589A EP 2883802 B1 EP2883802 B1 EP 2883802B1
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- EP
- European Patent Office
- Prior art keywords
- tightening
- lever
- tie
- cutting
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005520 cutting process Methods 0.000 claims description 69
- 210000000078 claw Anatomy 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 2
- 210000003811 finger Anatomy 0.000 description 25
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 210000001217 buttock Anatomy 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000004932 little finger Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B13/00—Bundling articles
- B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
- B65B13/025—Hand-held tools
- B65B13/027—Hand-held tools for applying straps having preformed connecting means, e.g. cable ties
Definitions
- the present invention relates to a manual binding tool for a binding band, and more particularly to a manual binding tool which is suitably used for a binding work using a metal-made binding band (metal tie).
- Patent Literature 1 As a manual binding tool of this kind, a tool disclosed in Patent Literature 1 is known.
- the manual binding tool is configured by including: a tightening mechanism (c) which pulls a band portion (a) with respect to a head portion (b); a first lever (1) and second lever (2) for manipulating the tightening mechanism (c); a cutting mechanism (e) which cuts an extra band portion (a) after tightening; and a third lever (3) for manipulating the cutting mechanism (e).
- EP 0479623 A also discloses such a manual binding tool.
- a binding band which is wound around a to-be-bound object such as a wire harness is tightened by gripping manipulation on the first lever (1) and the second lever (2).
- the gripping manipulation is repeated and the tightening force reaches a predetermined value
- the second lever (2) is swung in a buckling manner, and tightening is disabled.
- the fingers which are engaged with the second lever (2) are transferred to grip the third lever (3), and the cutting mechanism (e) is operated by gripping manipulation on the first lever (1) and the third lever (3) to cut away an unwanted band portion, thereby ending a series of binding works.
- the tool has the configuration in which the tightening mechanism is operated by gripping the first lever and the second lever, and the cutting mechanism is operated by gripping the first lever and the third lever. Therefore, the tightening and cutting operations of the binding band can be performed by single-hand manipulation including the finger engagement transfer between the first lever and the third lever, and the tool is convenient and easy to use.
- the tool is excellent because it enables a binding work to be performed in a state where one arm is stretched, in a high place such as a power transmission line.
- Patent Literature 1 Japanese Patent Application Laid-Open No. 2009-262965
- the invention provides a manual binding tool according to claim 1.
- the invention of claim 2 is characterized in that, in the manual binding tool of claim 1, a tightening adjusting mechanism f which can change setting of a maximum value of a pulling force caused by the tightening mechanism a is disposed.
- the switching mechanism performs switching so that, when the pulling force of the projection tie portion is smaller than the preset value, the tightening state where the tightening mechanism is caused to operate is set, and, when the pulling force of the projection tie portion reaches the preset value, a cutting state where the pushing mechanism is caused to operate is set.
- the tool includes the pushing mechanism, the tie portion can be pushed and deformed, and the deformed portion can be engaged into the hole of the tie portion onto which the head portion is previously fitted. Therefore, the tool can be used also for a binding tie having a structure which is not provided with a self-engaging function (a structure in which punch engagement is performed), such as a metal tie. Consequently, an advantage that the tool has high versatility is added.
- the projection tie portion when the projection tie portion is not gripped by the pulling portion, return movement of the projection tie portion to the head portion is blocked by the return preventing mechanism.
- a period when the projection tie portion is not pulled, such as a return swinging step therefore, a possibility that the tie portion return moves is eliminated.
- bothersome manipulation in which the first and second levers are quickly gripped so that the tie portion is not returned is not necessary, and there is another advantage that a binding work can be performed easily and smoothly.
- the setting of the maximum value of the pulling force of the tie portion 4 can be changed by the tightening adjusting mechanism, and the tightening force can be adjusted. Therefore, it is possible to provide a manual binding tool in which, for example, the tightening force due to the binding tie can be easily adjusted and set in accordance with a to-be-bound object, and which is therefore highly easy to use and practically advantageous.
- a manual binding tool A of Embodiment 1 is configured by including: a tool body 3 which has a cutting mechanism c and a tie holding portion g in a tip end portion, and a first lever 1 in a basal end portion; a second lever 2 which is pivotally supported on the tool body 3 about an axis P; a tightening mechanism a; a tightening linkage mechanism b; a cutting linkage mechanism d; a switching mechanism e; a tightening adjusting mechanism f; and the like.
- the tightening mechanism a, the tightening linkage mechanism b, the cutting linkage mechanism d, and the switching mechanism e are mainly disposed in the tool body 3, and the tightening adjusting mechanism f is mainly disposed in the first lever 1.
- the cutting mechanism c has a configuration including a pushing mechanism h.
- a binding work performed by the manual binding tool A will be briefly described.
- a projection tie portion 4a of a binding tie B which is wound around a to-be-bound object K to be temporarily fixed thereto is inserted into a tie passage hole 6 (see Fig. 4 ) of the tool body 3 at a degree in which the tip end is passed therethrough, and a head portion 5 is inserted into the tie holding portion g.
- first lever 1 and the second lever 2 are relatively approaching swung until the second lever 2 is moved from a first position t1 to a second position t2, and gripping manipulation in which the projection tie portion 4a is forcibly pulled with respect to the head portion 5 held by the tie holding portion g, by actuation of the tightening mechanism a, and a grip releasing manipulation are performed.
- the binding tie (binding band) B which is used in the manual binding tool A of Embodiment 1 is a separation type metal tie in which the head portion 5 that is made of a metal such as a stainless steel plate is incorporated in the long band-like tie portion 4 that is made of a metal such as a stainless steel plate.
- the tie portion 4 is configured by a steel plate band which is small in thickness and in width, and has: a pointed tip end 7 configured by a long inclined edge 7a and a short inclined edge 7b; a pair of holes 7c which are in the vicinity of the pointed tip end, and which have an inclined rounded-corner rectangular shape; a cut and raised claw 8 which is on the root side; a stopper 9 which is mostly on the root side; and an engagement hole 10.
- the head portion 5 has a flat and substantially C-like shape which is formed by bending a steel plate which is thicker than the tie portion 4, and has: a passage path 5a through which the tie portion 4 is to be passed; an escaping hole 5b on the rear side (the side of the to-be-bound object); a substantially circular cutaway 5c which is on the front side, and which is used for passing a punch; and the like.
- the width in the thickness direction of the passage path 5a is set to a dimension which allows two tie portions 4 in a stacked state to be passed therethrough without forming a substantial gap.
- the head portion 5 is inserted from the pointed tip end 7 into the tie portion 4, passed over the cut and raised claw 8 while elastically deforming it, and engagedly disposed at a position between the cut and raised claw 8 and the stopper 9.
- the binding tie B in which the head portion 5 is disposed on the tie portion 4 is configured so as to enable a state where, as shown in Fig. 7 , the escaping hole 5b, the engagement hole 10, and the substantially circular cutaway 5c are aligned (stacked) in a straight line.
- the manual binding tool A is configured by having: the tool body 3 which integrally includes the first lever 1; the second lever 2 which is pivotally supported about the axis P on the tool body 3; a base arm 11 which is pivotally coupled to the tool body 3 about the axis P; and the like.
- a tension arm 12 which is movable swingly about a fulcrum X, a triangular link 13 which is usually swingable while setting the axis P as a virtual center, the cutting mechanism c, a chuck claw 15 which is swingable about a fulcrum Y, a return spring 16 for the base arm 11, and the like are disposed.
- the first lever 1 which is a projection portion of the tool body 3 is provided with the tightening adjusting mechanism f configured by an adjustment knob 17 which can be rotated, a tightening force adjusting spring 18, a spring receiver 19 for the tightening force adjusting spring 18, and the like.
- a tension bar 20 which is pivotally coupled to both the tension arm 12 and the spring receiver 19 is disposed.
- the base arm 11 is provided with an engagement claw 21 which is swingable about a fulcrum Z, a return spring 22 which tries to return the engagement claw 21 to a waiting state, a spring receiver 23 which is pivotally coupled to be used for the return spring 16, and the like.
- the second lever 2 is covered with a grip 24 which is made of a synthetic resin or the like, a cutter roller 25 is supported at the tip end, and a linear engagement groove 26 is formed on the side of the tip end.
- the engagement groove 26 is placed and set in a state where the groove is inclined so that the closer to the tip end side (on the side of the tie holding portion g), the larger the diameter related to the axis P.
- the tightening adjusting mechanism f functions in the following manner.
- a square nut 35 screwed to a knob shaft 17a is moved to the left side in Fig. 3 (to the side of the axis P), and the tightening force adjusting spring 18 which is between the nut and the spring receiver 19 is compressed to increase the elastic force.
- This causes the force by which the tension arm 12 pressingly urges the triangular link 13, to be increased, and a setting tightening force is adjusted in the increasing direction.
- the cutting mechanism c is configured by: a holder 30 which is housed and supported in a cutter body 14 so as to be extractively and retractively slidable; a cutting blade 27 which is integrally supported by the holder 30, and which is extractively and retractively slidable; a punch body 28 which is inserted into the cutting blade 27 to be integrally supported thereby; a return spring 29 for returning the cutting blade 27 to a waiting position; and the like.
- the return spring 29 causes the cutting blade 27 and the punch body 28 to be in a retracted waiting position (see Fig. 14 ).
- the punch body 28 is used for pushing the tie portion 4 to be engaged with the tie portion 4 which is in the inner side, and the head portion 5 by means of plastic deformation, and cooperates with a pin 34 (described later) and the like to constitute the pushing mechanism h.
- the cutter body 14 is configured by a lower body 14A and an upper body 14B which is placed above the lower body, and the cutting mechanism c is housed and configured between the both bodies 14A, 14B.
- the return spring 29 is inserted and placed between an upper projection 14a of the lower body 14A and a holder back wall 30a.
- the cutting blade 27 its root portion is placed between a pair of right and left front sidewalls 30b, 30b of the holder 30.
- the cutting blade is integrated together with the punch body 28 which is housed in a passing hole (not denoted by a reference numeral) of the blade, with the holder 30 by the pin 34 that is passed therethrough.
- the cutting mechanism c is return-urged by the elastic force of the return spring 29 to a waiting state where a front wall 30c of the holder 30 butts against the upper projection 14a, and a blade portion 27a and a pointed punch portion 28a are separated from the binding tie B that is held by the tie holding portion g.
- the tip end of the punch portion 28a may have a pointed angle shape or a slightly rounded shape (see Fig. 13 ).
- the chuck claw 15 which is pivotally supported at the fulcrum Y by the lower body 14A is elastically urged in a state where a gear-toothed chuck portion 15a butts against a guide wall 6a of the tie passage hole 6, by a torsion coil spring 32 (see Fig. 4 ) disposed about the fulcrum Y.
- the tool is configured in a state where the second lever 2 having a pair of right and left sidewall portions 2a, 2a is placed inside the base arm 11 having a pair of right and left plate members, the triangular link 13 is placed between the sidewall portions 2a, 2a, and the tension arm 12 is located between a pair of right and left plate portions 13A, 13A constituting the triangular link 13.
- An intermediate pin 13c is supported in an intermediate portion of the triangular link 13, and passed through and engaged with the engagement groove 26 so as to be relatively rotatable and movably in the longitudinal direction of the groove.
- the tension arm 12 is elastically urged in a state where the arm is swung about the fulcrum X toward the tie holding portion g by the tightening force adjusting spring 18 of the tightening adjusting mechanism f, whereby, in the usual state (the waiting state where the second lever 2 is in the first position t1), the tip-end pin 13a is positioned in the end of the long hole 21a on the side of the tie holding portion g, and the intermediate pin 13c is positioned in the end of the engagement groove 26 on the side of the tie holding portion g. Because of the positional relationship of the tip-end and intermediate pins 13a, 13c, the root pin 13b is placed approximately coaxially with the axis P.
- the tie holding portion g is configured so as to be able to receive and hold the head portion 5, by fitting right and left arcuate portions 5d, 5d of the head portion 5, between substantially semicircular inner circumferential portions of a pair of right and left hook portions 36, 36 at the tip end of the upper body 14B.
- a restriction projection 37 which is formed on an upper surface portion of the tip end of the lower body 14A is located immediately below the hook portions 36, 36.
- a structure is formed in which the end edge of the head portion 5 butts against the restriction projection 37 to function as a stopper for a co-movement of the head portion 5 due to the operation of pulling the projection tie portion 4a, and the head portion is not further pulled in and is positioned therein.
- the dimensions are set so that, in the positioned state, as shown in Fig. 13 , the escaping hole 5b and substantially circular cutaway 5c of the head portion 5, the engagement hole 10 of the tie portion 4, and the punch portion 28a are coaxial with each other.
- the tool body 3 is configured by a left body case 3A and a right body case 3B, and the first lever 1 is configured by their basal end portions (not denoted by a reference numeral).
- the reference numeral 38 denotes a pair of right and left stepped circular support shafts which are flat. Each of the support shafts is configured by a small-diameter portion 38a which supports the base arm 11 and the second lever 2, and a flange portion 38b which is fitted in and supported by the corresponding one of the left and right left body cases 3A, 3B.
- a manual attaching step is performed in which the binding tie B is wound around the to-be-bound object K such as three wire harnesses by manual manipulation using the fingers, and the tie portion 4 is passed from the pointed tip end 7 through the head portion 5, and slightly pulled to be temporarily fixed thereto.
- Fig. 5(b) shows a state where the binding tie B is attached to the manual binding tool by the manual attaching step
- Fig. 3 shows only the manual binding tool in the state
- Figs. 3 and 5 (b) show the waiting state where the gripping manipulation is not performed, i.e., a state where the second lever 2 is in the first position t1 which is the waiting position.
- a buttock portion 15b is pushed by a basal-end projection 21b of the engagement claw 21, the chuck claw 15 is forcibly swung against the elastic force of the torsion coil spring 32 (see Fig. 4 ), and the chuck portion 15a is clearly separated from the guide wall 6a by a distance which is larger than the thickness of the tie portion 4. Therefore, the chuck claw 15 is in a state where it exerts no action on the projection tie portion 4a (non-operation state in the return preventing mechanism j).
- the engagement claw 21 is in a state where a gear-toothed tip end portion 21c is clearly separated from a tip-end inner wall 11b of the base arm 11 (see Fig. 10 ) by a distance which is larger than the thickness of the tie portion 4, by the elastic force of the return spring 22, and also the engagement claw 21 exerts no action on the projection tie portion 4a.
- first, very small swinging of the second lever 2 with respect to the first lever 1 forms a state where the projection tie portion 4a is clamped and engaged between the tip end portion 21c of the engagement claw 21 and the tip-end inner wall 11b. From the waiting state shown in Figs.
- the triangular link 13 which is pushed through the intermediate pin 13c that is positioned in the end of the engagement groove 26 on the side of the tie holding portion g is very slightly swung substantially about the axis P by relative rotation of the root pin 13b and the support roller 31, and the tip-end pin 13a causes the engagement claw 21 to be forcibly swung about the fulcrum Z against the elastic force of the return spring 22.
- the tip end portion 21c of the engagement claw 21 pushes the tip-end inner wall 11b across the projection tie portion 4a, the second lever 2 and the base arm 11 are integrally swung about the axis P as shown in Fig. 8 , and the engagement claw 21 exerts a self-lock function to forcibly pull and move the projection tie portion 4a gripped by the claw and the tip-end inner wall 11b, with respect to the head portion 5.
- the pulling portion i is configured by the tip end portion 21c and the tip-end inner wall 11b, i.e., by the engagement claw 21 and the base arm 11.
- the chuck claw 15 is slightly pressed against the projection tie portion 4a by the torsion coil spring 32, and a state is formed in which the self-lock function of blocking a return movement of the projection tie portion 4a to the head portion 5 can be exerted.
- a movement in the direction along which the projection tie portion 4a further projects is allowed (see Figs. 8 and 9 ).
- Fig. 8 shows a state in the middle of gripping, i.e., the tightening step.
- the return preventing mechanism j is configured by the lower body 14A having the guide wall 6a, and the chuck claw 15.
- the second lever When the relatively approaching swinging of the second lever 2 toward the first lever 1 due to gripping is further conducted, the second lever reaches the second position t2 where the second lever cannot be further swung by gripping, as shown in Fig. 9 , and the step of tightening the tie portion 4 by a single gripping operation is ended.
- the tightening step is performed in which the tightening linkage mechanism b and the tightening mechanism a are caused to operate by the relative swinging of the second lever 2 from the first position t1 to the second position t2, and the projection tie portion 4a is clamped and pulled by the engagement claw 21.
- the second position t2 is a position which is determined by butting the thickness end surface 11c on the side of the basal end of the base arm 11 against large-diameter base portions 33a for a support shaft 33 having the fulcrum X of the tension arm 12 as shown in Figs. 9 and 10.
- Fig. 10 is a front view of main portions in Fig. 9 .
- the return swinging step is performed in which the base arm 11 and the second lever 2 are integrally return-swung by the elastic force of the return spring 16 acting on the basal end side of the base arm 11, and self-returns to the first position t1.
- the tightening force is the preset value, namely, the engagement between the support roller 31 and the tip-end recess 12a caused by the tightening adjusting mechanism f (tightening force adjusting spring 18) which determines the preset value cannot be maintained, and the engagement claw 21 and base arm 11 which exert the self-locking function cannot be further swung in the tie pulling direction.
- the intermediate pin 13c is moved in the engagement groove 26 toward the first lever 1 as shown in Fig. 11 , whereby the tension arm 12 which is pushed by the support roller 31 is retractively swung about the fulcrum X toward the first lever 1, and the support roller 31 is disengaged from the tip-end recess 12a and then moved.
- the punch portion 28a at the tip end of the punch body 28 is passed over the substantially circular cutaway 5c, and then pushes the tie portion 4 located in the head portion 5 to cause plastic deformation (press molding), thereby producing an engagement state where the plastically deformed portion 4b enters the engagement hole 10 and the escaping hole 5b [see Fig. 13(b) ].
- the blade portion 27a at the tip end of the cutting blade 27 press cuts the projection tie portion 4a at a position proximity to the head portion 5.
- the tie portion 4 which is located on the to-be-bound object side of the projection tie portion 4a is in a state where it is slightly pushed by the blade portion 27a which has been used for cutting.
- the pushed tie portion 4 is in a so-called cantilever state due to the head portion 5, and a tendency to bend toward the to-be-bound object side is originally provided by a tip-end wall 11A. Therefore, the tie portion is pushed so slightly that it receives no action from the blade portion 27a.
- the second lever 2 Only when the force reaches the preset tightening force, as described above, the second lever 2 is allowed to be moved from the second position t2 to the third position t3. In the punch cutting step due to the movement to the third position t3, engagement of tie portions 4, and engagement (punch engagement) of the tie portion 4 and the head portion 5 are performed, and an extra projection tie portion 4a is cut away.
- the tightening mechanism a is configured by having the base arm 11, the engagement claw 21, and the return spring 22.
- the tightening linkage mechanism b is configured by having the tension arm 12, the triangular link 13, and the engagement groove 26 which is fitted to the intermediate pin 13c.
- the cutting linkage mechanism d is configured by having the cutter roller 25, the triangular link 13, the engagement groove 26, and the tension arm 12.
- the switching mechanism e is configured by having the tightening force adjusting spring 18, the tension bar 20, the tension arm 12, and the triangular link 13.
- the tightening linkage mechanism b links the both levers 1, 2 with the tightening mechanism a in the state where the projection tie portion 4a is pulled by relatively approaching swinging in the range within the predetermined relative angle of the first lever 1 and the second lever 2, i.e., the angle between the first position t1 and the second position t2 about the axis P (the tightening step).
- the cutting linkage mechanism d links the both levers 1, 2 with the cutting mechanism c in the state where the projection tie portion 4a is cut by relatively approaching swinging of the first lever 1 and the second lever 2 in the predetermined angle, i.e., beyond the second position t2 (the punch cutting step).
- the switching mechanism e functions so as to, when the pulling force of the projection tie portion 4a due to the tightening mechanism a is smaller than the preset value, set the tightening state where the tightening linkage mechanism b is caused to operate, and the cutting linkage mechanism d is caused not to operate, and, when the pulling force of the projection tie portion 4a due to the tightening mechanism a reaches the preset value, cause the tightening linkage mechanism b not to operate, and the cutting linkage mechanism d to operate.
- the cutting mechanism c has the configuration including the pushing mechanism h which pushes and deforms the tie portion 4 that is located in the head portion 5 by being wound around the to-be-bound object K and then inserted into the head portion 5, by the punch body 28, and which causes the deformed portion (plastically deformed portion) 4b to be engaged into the circular engagement hole 10 formed in the tie portion 4 onto which the head portion 5 is previously fitted.
- a metal tie is used as the binding tie B, and therefore the cutting mechanism c is configured by including the pushing mechanism h.
- a manual binding tool A including only the cutting mechanism c may be employed.
- the tool is configured in the state where, in accordance with movement in which the first lever 1 and the second lever 2 are relatively approaching swung by griping the both levers 1, 2 from the waiting state (state shown in Fig. 3 ) where the both levers 1, 2 are mostly openly swung, the projection tie portion 4a is gripped by the pulling portion i and then pulled by the pulling portion i.
- the return preventing mechanism j functions so as to block a return movement of the projection tie portion 4a to the head portion 5. Therefore, the tool is configured so that, just at the moment when the force applied by the fingers is released and the gripping of the first and second levers 1, 2 is cancelled, the return preventing mechanism j operates, and hence an unexpected return movement of the tightened tie portion 4 does not occur.
- the switching mechanism e when the pulling force of the projection tie portion 4a is smaller than the preset value, the tightening state where only the tightening mechanism a is caused to operate is set, and, when the pulling force of the projection tie portion 4a reaches the preset value, the tool is automatically switched to the punch cutting state where only the pushing mechanism h and the cutting mechanism c are caused to operate. Without disposing a third lever, therefore, the tool is configured so that the series of works (tightening and punch cutting) on the binding tie B can be performed simply by performing gripping manipulation of the pair of levers 1, 2.
- the manual binding tool A in which, without transferring a plurality of fingers, pulling manipulation and cutting manipulation can be performed simply by performing gripping manipulation of the pair of levers, so that the tool can further simplify a binding work, and is very easy to use.
- the punch body 28 is detachably integrated with the cutting blade 27. Therefore, the tool can be made suitable for the binding tie B (see Figs. 6 and 7 ) having the structure in which the tie portion 4 is deformed and inserted into the engagement hole 10 to be engaged therewith, or which is not provided with a so-called self-engaging function (a structure in which punch engagement is performed).
- the tool can be used for a binding tie having a structure which is not provided with the punch engagement. Therefore, the tool has further advantages that it is high in versatility so as to suitable for various bonding ties, and easy to use and convenient.
- the return preventing mechanism j which, when the projection tie portion 4a is not gripped by the pulling portion i, such as when the second lever 2 is openly swung from the second position t2 to the first position t1, blocks a return movement of the projection tie portion 4a to the head portion 5 is disposed. Therefore, a possibility that an unexpected situation occurs that the tie portion 4 return moves when the projection tie portion 4a is not pulled, such as in the return swinging step is eliminated. Therefore, a bothersome manipulation in which the first and second lever 1, 2 are quickly gripped so that the tie portion 4 is not returned is no longer required, and hence a binding work can be performed easily and smoothly by the fingers.
- the conditions for operating the switching mechanism e i.e., the tightening force can be adjusted by a simple manipulation of rightward or leftward rotating the adjustment knob 17. Therefore, it is possible also to realize the manual binding tool A in which the tightening force of the binding tie B can be easily adjusted and set in accordance with the to-be-bound object K, and which is highly practically advantageous.
Description
- The present invention relates to a manual binding tool for a binding band, and more particularly to a manual binding tool which is suitably used for a binding work using a metal-made binding band (metal tie).
- As a manual binding tool of this kind, a tool disclosed in
Patent Literature 1 is known. The manual binding tool is configured by including: a tightening mechanism (c) which pulls a band portion (a) with respect to a head portion (b); a first lever (1) and second lever (2) for manipulating the tightening mechanism (c); a cutting mechanism (e) which cuts an extra band portion (a) after tightening; and a third lever (3) for manipulating the cutting mechanism (e).EP 0479623 A also discloses such a manual binding tool. - In binding manipulation by the manual binding tool, as shown in
Figs. 14 and 15 ofPatent Literature 1, a binding band which is wound around a to-be-bound object such as a wire harness is tightened by gripping manipulation on the first lever (1) and the second lever (2). When the gripping manipulation is repeated and the tightening force reaches a predetermined value, the second lever (2) is swung in a buckling manner, and tightening is disabled. When tightening is disabled, the fingers which are engaged with the second lever (2) are transferred to grip the third lever (3), and the cutting mechanism (e) is operated by gripping manipulation on the first lever (1) and the third lever (3) to cut away an unwanted band portion, thereby ending a series of binding works. - Namely, the tool has the configuration in which the tightening mechanism is operated by gripping the first lever and the second lever, and the cutting mechanism is operated by gripping the first lever and the third lever. Therefore, the tightening and cutting operations of the binding band can be performed by single-hand manipulation including the finger engagement transfer between the first lever and the third lever, and the tool is convenient and easy to use. The tool is excellent because it enables a binding work to be performed in a state where one arm is stretched, in a high place such as a power transmission line.
- Patent Literature 1: Japanese Patent Application Laid-Open No.
2009-262965 - According to the situation where simple and convenient execution of the tightening and cutting of a binding band with one hand is usual and accustomed because of the realization of the manual binding tool, however, the finger engagement transfer becomes troublesome and bothersome. In transition to the cutting manipulation after ending of the tightening manipulation, namely, the operation of transferring a plurality of fingers from the second lever to the third lever is gradually hardly performed.
- In the case where the manual binding tool is gripped by the hand, usually, a state where the four fingers other than the thumb are engaged with the second lever is produced. When the tightening manipulation is to be shifted to the cutting manipulation, therefore, the four fingers or the index finger, the middle finger, the fourth finger, and the little finger are transferred to be engaged with the third lever. When all the four fingers are moved together at once, it is impossible to grip the tool. Therefore, the fingers are obliged to be sequentially transferred. The series of transferring operations are particularly hardly performed.
- In a use condition in which the user is relatively easily tired, such as that in which one hand is raised in a high place such as an iron tower, for example, the transferring of plural fingers imposes burden, and a break must be frequently taken, with the result that continuous binding works are hardly performed and works easily become unreasonable. During the transferring of plural fingers, moreover, the one-hand gripping of the tool by fingers is easily unstabilized, thereby causing another problem that the above-described trouble and botheration are increased. It seems to be undeniable that the emergence of a manual binding tool which can be manipulated by one hand causes work contents to be sophisticated and complicated, with the result that the manipulation of transferring fingers is gradually felt to be difficult.
- It is an object of the invention to provide a manual binding tool in which, because of further improvement of the structure in view of the above-discussed circumstances, without performing transferring a plurality of fingers, tightening manipulation and cutting manipulation can be performed simply by performing gripping manipulation of a pair of levers, so that the tool can further simplify a binding work, and is very easy to use.
- The invention provides a manual binding tool according to
claim 1. - The invention of
claim 2 is characterized in that, in the manual binding tool ofclaim 1, a tightening adjusting mechanism f which can change setting of a maximum value of a pulling force caused by the tightening mechanism a is disposed. - According to the invention, the switching mechanism performs switching so that, when the pulling force of the projection tie portion is smaller than the preset value, the tightening state where the tightening mechanism is caused to operate is set, and, when the pulling force of the projection tie portion reaches the preset value, a cutting state where the pushing mechanism is caused to operate is set. Without disposing a third lever, therefore, tightening manipulation and cutting manipulation can be performed on the binding tie, by performing gripping manipulation of only the pair of levers.
- In both tightening and cutting steps, therefore, the state where the first and second levers are gripped can be maintained, and consequently the prior art bothersome problem in that, in the case where the tightening manipulation is to be shifted to the cutting manipulation, a plurality of fingers are transferred from the second lever to the third lever can be solved.
- As a result, it is possible to provide a manual binding tool in which, without performing transferring of a plurality of fingers, tightening manipulation and cutting manipulation can be performed simply by performing gripping manipulation of the pair of levers, so that the tool can further simplify a binding work, and is very easy to use.
- According to the invention, the tool includes the pushing mechanism, the tie portion can be pushed and deformed, and the deformed portion can be engaged into the hole of the tie portion onto which the head portion is previously fitted. Therefore, the tool can be used also for a binding tie having a structure which is not provided with a self-engaging function (a structure in which punch engagement is performed), such as a metal tie. Consequently, an advantage that the tool has high versatility is added.
- According to the invention, when the projection tie portion is not gripped by the pulling portion, return movement of the projection tie portion to the head portion is blocked by the return preventing mechanism. During a period when the projection tie portion is not pulled, such as a return swinging step, therefore, a possibility that the tie portion return moves is eliminated. As a result, bothersome manipulation in which the first and second levers are quickly gripped so that the tie portion is not returned is not necessary, and there is another advantage that a binding work can be performed easily and smoothly.
- According to the invention of
claim 2, the setting of the maximum value of the pulling force of thetie portion 4 can be changed by the tightening adjusting mechanism, and the tightening force can be adjusted. Therefore, it is possible to provide a manual binding tool in which, for example, the tightening force due to the binding tie can be easily adjusted and set in accordance with a to-be-bound object, and which is therefore highly easy to use and practically advantageous. -
- [
Fig. 1] Fig. 1 shows a manual binding tool ofEmbodiment 1, (a) is a perspective view, and (b) is a front view. - [
Fig. 2] Fig. 2 shows the manual binding tool ofFig. 1 , (a) is a rear view, and (b) is a left side view. - [
Fig. 3] Fig. 3 is a front view showing the internal structure of the manual binding tool ofFig. 1 . - [
Fig. 4] Fig. 4 is an exploded perspective view showing the structure of the manual binding tool ofFig. 1 . - [
Fig. 5] Fig. 5 shows an example of the use condition (waiting state) of the manual binding tool, (a) is a perspective view as viewed from the side of a to-be-bound article, and (b) is a partially cutaway front view including the internal structure. - [
Fig. 6] Fig. 6 shows a metal-made binding tie, (a) is an overall view in a free state, and (b) is a rear view in the vicinity of a head portion. - [
Fig. 7] Fig. 7 shows the structure of the vicinity of the head portion of the binding tie ofFig. 6 , (a) is a longitudinal sectional view, and (b) is a transverse sectional view. - [
Fig. 8] Fig. 8 is a functional view showing a tightening step of pulling a projection tie portion. - [
Fig. 9] Fig. 9 is a functional view showing a state where, in the tightening step, a second lever is maximally swung to be located at a second position. - [
Fig. 10] Fig. 10 is an enlarged front view showing main portions of the manual binding tool shown inFig. 9 . - [
Fig. 11] Fig. 11 is a functional view of main portions showing a state where the tightening force reaches a preset value, an engagement between a triangular link and a tension arm is cancelled, and the tightening step is being transferred to a punch cutting step. - [
Fig. 12] Fig. 12 is a functional view showing a state where, in the punch cutting step, the second lever is maximally swung to be located at a third position. - [
Fig. 13] Fig. 13 is an enlarged view of main portions showing an operation state in the punch cutting step. - [
Fig. 14] Fig. 14 is an enlarged front view showing main portions of a tool body inFig. 3 . - Hereinafter, an embodiment of the manual binding tool of the invention will be described with reference to the drawings. In the application, a manner of fixing a
tie portion 4 by means of punch engagement may be expressed as "punch lock type". - As shown in
Figs. 1 to 4 , a manual binding tool A ofEmbodiment 1 is configured by including: atool body 3 which has a cutting mechanism c and a tie holding portion g in a tip end portion, and afirst lever 1 in a basal end portion; asecond lever 2 which is pivotally supported on thetool body 3 about an axis P; a tightening mechanism a; a tightening linkage mechanism b; a cutting linkage mechanism d; a switching mechanism e; a tightening adjusting mechanism f; and the like. The tightening mechanism a, the tightening linkage mechanism b, the cutting linkage mechanism d, and the switching mechanism e are mainly disposed in thetool body 3, and the tightening adjusting mechanism f is mainly disposed in thefirst lever 1. The cutting mechanism c has a configuration including a pushing mechanism h. - Initially, a binding work performed by the manual binding tool A will be briefly described. As shown in
Fig. 5 , first, aprojection tie portion 4a of a binding tie B which is wound around a to-be-bound object K to be temporarily fixed thereto is inserted into a tie passage hole 6 (seeFig. 4 ) of thetool body 3 at a degree in which the tip end is passed therethrough, and ahead portion 5 is inserted into the tie holding portion g. - As shown in
Figs. 3 and9 , then, thefirst lever 1 and thesecond lever 2 are relatively approaching swung until thesecond lever 2 is moved from a first position t1 to a second position t2, and gripping manipulation in which theprojection tie portion 4a is forcibly pulled with respect to thehead portion 5 held by the tie holding portion g, by actuation of the tightening mechanism a, and a grip releasing manipulation are performed. - When the gripping manipulation and the grip releasing manipulation are performed one time or a plurality of times, thereby causing the tightening force to reach a predetermined value, the movement of the
second lever 2 from the second position t2 to a third position is allowed by subsequent gripping manipulation. - As a result of the swinging of the
second lever 2 from the second position t2 to the third position t3, the pushing mechanism h and the cutting mechanism c operate (seeFigs. 12 and13 ), thetie portion 4 is engaged with thehead portion 5, and theprojection tie portion 4a is cut in a place proximity to thehead portion 5. - As shown in
Figs. 6 and7 , the binding tie (binding band) B which is used in the manual binding tool A ofEmbodiment 1 is a separation type metal tie in which thehead portion 5 that is made of a metal such as a stainless steel plate is incorporated in the long band-like tie portion 4 that is made of a metal such as a stainless steel plate. - The
tie portion 4 is configured by a steel plate band which is small in thickness and in width, and has: apointed tip end 7 configured by a longinclined edge 7a and a shortinclined edge 7b; a pair ofholes 7c which are in the vicinity of the pointed tip end, and which have an inclined rounded-corner rectangular shape; a cut and raisedclaw 8 which is on the root side; astopper 9 which is mostly on the root side; and anengagement hole 10. - The
head portion 5 has a flat and substantially C-like shape which is formed by bending a steel plate which is thicker than thetie portion 4, and has: apassage path 5a through which thetie portion 4 is to be passed; an escapinghole 5b on the rear side (the side of the to-be-bound object); a substantiallycircular cutaway 5c which is on the front side, and which is used for passing a punch; and the like. The width in the thickness direction of thepassage path 5a is set to a dimension which allows twotie portions 4 in a stacked state to be passed therethrough without forming a substantial gap. - The
head portion 5 is inserted from the pointedtip end 7 into thetie portion 4, passed over the cut and raisedclaw 8 while elastically deforming it, and engagedly disposed at a position between the cut and raisedclaw 8 and thestopper 9. The binding tie B in which thehead portion 5 is disposed on thetie portion 4 is configured so as to enable a state where, as shown inFig. 7 , the escapinghole 5b, theengagement hole 10, and the substantiallycircular cutaway 5c are aligned (stacked) in a straight line. - Next, the manual binding tool A will be described. As shown in
Figs. 1 to 4 ,10 , and14 , the manual binding tool A is configured by having: thetool body 3 which integrally includes thefirst lever 1; thesecond lever 2 which is pivotally supported about the axis P on thetool body 3; abase arm 11 which is pivotally coupled to thetool body 3 about the axis P; and the like. - In the
tool body 3, atension arm 12 which is movable swingly about a fulcrum X, atriangular link 13 which is usually swingable while setting the axis P as a virtual center, the cutting mechanism c, achuck claw 15 which is swingable about a fulcrum Y, areturn spring 16 for thebase arm 11, and the like are disposed. - The
first lever 1 which is a projection portion of thetool body 3 is provided with the tightening adjusting mechanism f configured by anadjustment knob 17 which can be rotated, a tighteningforce adjusting spring 18, aspring receiver 19 for the tighteningforce adjusting spring 18, and the like. Atension bar 20 which is pivotally coupled to both thetension arm 12 and thespring receiver 19 is disposed. - The
base arm 11 is provided with anengagement claw 21 which is swingable about a fulcrum Z, areturn spring 22 which tries to return theengagement claw 21 to a waiting state, aspring receiver 23 which is pivotally coupled to be used for thereturn spring 16, and the like. Thesecond lever 2 is covered with agrip 24 which is made of a synthetic resin or the like, acutter roller 25 is supported at the tip end, and alinear engagement groove 26 is formed on the side of the tip end. Theengagement groove 26 is placed and set in a state where the groove is inclined so that the closer to the tip end side (on the side of the tie holding portion g), the larger the diameter related to the axis P. - The tightening adjusting mechanism f functions in the following manner. When the
adjustment knob 17 which is rotatably supported by thefirst lever 1 is rotated to the left and fastened, asquare nut 35 screwed to aknob shaft 17a is moved to the left side inFig. 3 (to the side of the axis P), and the tighteningforce adjusting spring 18 which is between the nut and thespring receiver 19 is compressed to increase the elastic force. This causes the force by which thetension arm 12 pressingly urges thetriangular link 13, to be increased, and a setting tightening force is adjusted in the increasing direction. - When the
adjustment knob 17 is rotated to the right and loosened, conversely, thesquare nut 35 is moved to the right side inFig. 3 (to the side of the adjustment knob 17) to separate from thespring receiver 19, and the tighteningforce adjusting spring 18 expands to weaken the elastic force. Therefore, the force by which thetension arm 12 pressingly urges thetriangular link 13 is reduced, and the setting tightening force is adjusted in the decreasing direction. - The cutting mechanism c is configured by: a
holder 30 which is housed and supported in acutter body 14 so as to be extractively and retractively slidable; acutting blade 27 which is integrally supported by theholder 30, and which is extractively and retractively slidable; apunch body 28 which is inserted into thecutting blade 27 to be integrally supported thereby; areturn spring 29 for returning thecutting blade 27 to a waiting position; and the like. In a usual state where thecutter roller 25 does not push theholder 30, thereturn spring 29 causes thecutting blade 27 and thepunch body 28 to be in a retracted waiting position (seeFig. 14 ). - Although described in detail later, the
punch body 28 is used for pushing thetie portion 4 to be engaged with thetie portion 4 which is in the inner side, and thehead portion 5 by means of plastic deformation, and cooperates with a pin 34 (described later) and the like to constitute the pushing mechanism h. - As shown in
Figs. 3 ,4 , and14 , thecutter body 14 is configured by alower body 14A and anupper body 14B which is placed above the lower body, and the cutting mechanism c is housed and configured between the bothbodies return spring 29 is inserted and placed between anupper projection 14a of thelower body 14A and a holderback wall 30a. - In the
cutting blade 27, its root portion is placed between a pair of right and leftfront sidewalls holder 30. The cutting blade is integrated together with thepunch body 28 which is housed in a passing hole (not denoted by a reference numeral) of the blade, with theholder 30 by thepin 34 that is passed therethrough. - During a normal period (the period other than "punch cutting step" which will be described later) when the cutting mechanism c is not manipulated by the
second lever 2, the cutting mechanism c is return-urged by the elastic force of thereturn spring 29 to a waiting state where afront wall 30c of theholder 30 butts against theupper projection 14a, and ablade portion 27a and apointed punch portion 28a are separated from the binding tie B that is held by the tie holding portion g. The tip end of thepunch portion 28a may have a pointed angle shape or a slightly rounded shape (seeFig. 13 ). - The
chuck claw 15 which is pivotally supported at the fulcrum Y by thelower body 14A is elastically urged in a state where a gear-toothed chuck portion 15a butts against aguide wall 6a of thetie passage hole 6, by a torsion coil spring 32 (seeFig. 4 ) disposed about the fulcrum Y. - The tool is configured in a state where the
second lever 2 having a pair of right and leftsidewall portions base arm 11 having a pair of right and left plate members, thetriangular link 13 is placed between thesidewall portions tension arm 12 is located between a pair of right and leftplate portions triangular link 13. - In the
triangular link 13 configured by the pair of right and left plate members, its tip end portion is pivotally supported by along hole 21a of theengagement claw 21 through a tip-end pin 13a, aroot pin 13b is supported in a root portion, and asupport roller 31 which is fitted onto theroot pin 13b is engaged in an arcuate tip-end recess 12a of thetension arm 12. - An
intermediate pin 13c is supported in an intermediate portion of thetriangular link 13, and passed through and engaged with theengagement groove 26 so as to be relatively rotatable and movably in the longitudinal direction of the groove. - The
tension arm 12 is elastically urged in a state where the arm is swung about the fulcrum X toward the tie holding portion g by the tighteningforce adjusting spring 18 of the tightening adjusting mechanism f, whereby, in the usual state (the waiting state where thesecond lever 2 is in the first position t1), the tip-end pin 13a is positioned in the end of thelong hole 21a on the side of the tie holding portion g, and theintermediate pin 13c is positioned in the end of theengagement groove 26 on the side of the tie holding portion g. Because of the positional relationship of the tip-end andintermediate pins root pin 13b is placed approximately coaxially with the axis P. - As shown in
Figs. 1 ,2 ,5 ,11 , and13 , the tie holding portion g is configured so as to be able to receive and hold thehead portion 5, by fitting right and leftarcuate portions head portion 5, between substantially semicircular inner circumferential portions of a pair of right and lefthook portions upper body 14B. Arestriction projection 37 which is formed on an upper surface portion of the tip end of thelower body 14A is located immediately below thehook portions head portion 5 butts against therestriction projection 37 to function as a stopper for a co-movement of thehead portion 5 due to the operation of pulling theprojection tie portion 4a, and the head portion is not further pulled in and is positioned therein. - The dimensions are set so that, in the positioned state, as shown in
Fig. 13 , the escapinghole 5b and substantiallycircular cutaway 5c of thehead portion 5, theengagement hole 10 of thetie portion 4, and thepunch portion 28a are coaxial with each other. - As shown in
Fig. 4 , thetool body 3 is configured by aleft body case 3A and aright body case 3B, and thefirst lever 1 is configured by their basal end portions (not denoted by a reference numeral). Thereference numeral 38 denotes a pair of right and left stepped circular support shafts which are flat. Each of the support shafts is configured by a small-diameter portion 38a which supports thebase arm 11 and thesecond lever 2, and aflange portion 38b which is fitted in and supported by the corresponding one of the left and rightleft body cases - Next, the manner of the binding work in which the binding tie B is used by the manual binding tool A will be described. As shown in
Fig. 5 and the like, first, a manual attaching step is performed in which the binding tie B is wound around the to-be-bound object K such as three wire harnesses by manual manipulation using the fingers, and thetie portion 4 is passed from the pointedtip end 7 through thehead portion 5, and slightly pulled to be temporarily fixed thereto. - The manipulation of inserting the
projection tie portion 4a which projects through thehead portion 5 in thetie portion 4, into thetie passage hole 6 formed in thetool body 3 is performed to cause a state where, as shown inFig. 5(b) , the pointedtip end 7 projects to the outside of the tool through a passage path 11a in a tip end portion of thebase arm 11. -
Fig. 5(b) shows a state where the binding tie B is attached to the manual binding tool by the manual attaching step, andFig. 3 shows only the manual binding tool in the state.Figs. 3 and5 (b) show the waiting state where the gripping manipulation is not performed, i.e., a state where thesecond lever 2 is in the first position t1 which is the waiting position. - In the waiting state, a
buttock portion 15b is pushed by a basal-end projection 21b of theengagement claw 21, thechuck claw 15 is forcibly swung against the elastic force of the torsion coil spring 32 (seeFig. 4 ), and thechuck portion 15a is clearly separated from theguide wall 6a by a distance which is larger than the thickness of thetie portion 4. Therefore, thechuck claw 15 is in a state where it exerts no action on theprojection tie portion 4a (non-operation state in the return preventing mechanism j). - In addition, the
engagement claw 21 is in a state where a gear-toothedtip end portion 21c is clearly separated from a tip-endinner wall 11b of the base arm 11 (seeFig. 10 ) by a distance which is larger than the thickness of thetie portion 4, by the elastic force of thereturn spring 22, and also theengagement claw 21 exerts no action on theprojection tie portion 4a. - When the
first lever 1 and thesecond lever 2 are then gripped by the fingers (not shown) of the right hand or the like, first, very small swinging of thesecond lever 2 with respect to thefirst lever 1 forms a state where theprojection tie portion 4a is clamped and engaged between thetip end portion 21c of theengagement claw 21 and the tip-endinner wall 11b. From the waiting state shown inFigs. 3 and14 , namely, thetriangular link 13 which is pushed through theintermediate pin 13c that is positioned in the end of theengagement groove 26 on the side of the tie holding portion g is very slightly swung substantially about the axis P by relative rotation of theroot pin 13b and thesupport roller 31, and the tip-end pin 13a causes theengagement claw 21 to be forcibly swung about the fulcrum Z against the elastic force of thereturn spring 22. - Then, the
tip end portion 21c of theengagement claw 21 pushes the tip-endinner wall 11b across theprojection tie portion 4a, thesecond lever 2 and thebase arm 11 are integrally swung about the axis P as shown inFig. 8 , and theengagement claw 21 exerts a self-lock function to forcibly pull and move theprojection tie portion 4a gripped by the claw and the tip-endinner wall 11b, with respect to thehead portion 5. As described above, the pulling portion i is configured by thetip end portion 21c and the tip-endinner wall 11b, i.e., by theengagement claw 21 and thebase arm 11. - At this time, the
chuck claw 15 is slightly pressed against theprojection tie portion 4a by thetorsion coil spring 32, and a state is formed in which the self-lock function of blocking a return movement of theprojection tie portion 4a to thehead portion 5 can be exerted. However, a movement in the direction along which theprojection tie portion 4a further projects is allowed (seeFigs. 8 and9 ). - When the
projection tie portion 4a is pulled, the tightening step is performed in which the length of theprojection tie portion 4a wound around the to-be-bound object K is reduced, and the to-be-bound object K is tightened.Fig. 8 shows a state in the middle of gripping, i.e., the tightening step. - Then, the forced movement of the
chuck claw 15 due to the pushing of thebuttock portion 15b by the basal-end projection 21b of theengagement claw 21 is cancelled by the above-described very small swinging of thesecond lever 2 from the first position t1, and therefore thechuck claw 15 is projected and swung by the elastic force of thetorsion coil spring 32 so that thechuck portion 15a is pressed and butted against theguide wall 6a. - This produces a state the
projection tie portion 4a is clamped between thechuck portion 15a and theguide wall 6a. As described above, therefore, the self-lock function of thechuck claw 15 is produced, and the return movement to thehead portion 5 is blocked. Namely, the return preventing mechanism j is configured by thelower body 14A having theguide wall 6a, and thechuck claw 15. - When the relatively approaching swinging of the
second lever 2 toward thefirst lever 1 due to gripping is further conducted, the second lever reaches the second position t2 where the second lever cannot be further swung by gripping, as shown inFig. 9 , and the step of tightening thetie portion 4 by a single gripping operation is ended. - Namely, the tightening step is performed in which the tightening linkage mechanism b and the tightening mechanism a are caused to operate by the relative swinging of the
second lever 2 from the first position t1 to the second position t2, and theprojection tie portion 4a is clamped and pulled by theengagement claw 21. - The second position t2 is a position which is determined by butting the
thickness end surface 11c on the side of the basal end of thebase arm 11 against large-diameter base portions 33a for asupport shaft 33 having the fulcrum X of thetension arm 12 as shown inFigs. 9 and10. Fig. 10 is a front view of main portions inFig. 9 . - When the tightening step is ended, and the gripping of the first and
second levers Fig. 9 , the return swinging step is performed in which thebase arm 11 and thesecond lever 2 are integrally return-swung by the elastic force of thereturn spring 16 acting on the basal end side of thebase arm 11, and self-returns to the first position t1. - In the state where the
second lever 2 is return-swung, the above-described self-lock function due to thechuck claw 15 is exerted, and the pulledprojection tie portion 4a is engaged and held so as not to return move. Since the elastic force of the tighteningforce adjusting spring 18 does not substantially act on thetriangular link 13, and that of thereturn spring 22 acts thereon, in addition, the clamping force which is produced by theengagement claw 21, and which is applied on theprojection tie portion 4a vanishes, and only thesecond lever 2 and thebase arm 11 are return-swung while the pulledprojection tie portion 4a remains as is. - When the tightening force of the binding tie B, more specifically the pulling force of the
projection tie portion 4a reaches a value which is previously set by the tightening adjusting mechanism f as a result of performing one time or a plurality of times a set of the tightening and return swinging steps that have been described, the process is automatically switched to the punch cutting step. - When the tightening force is the preset value, namely, the engagement between the
support roller 31 and the tip-end recess 12a caused by the tightening adjusting mechanism f (tightening force adjusting spring 18) which determines the preset value cannot be maintained, and theengagement claw 21 andbase arm 11 which exert the self-locking function cannot be further swung in the tie pulling direction. In accordance with further gripping of thesecond lever 2, therefore, theintermediate pin 13c is moved in theengagement groove 26 toward thefirst lever 1 as shown inFig. 11 , whereby thetension arm 12 which is pushed by thesupport roller 31 is retractively swung about the fulcrum X toward thefirst lever 1, and thesupport roller 31 is disengaged from the tip-end recess 12a and then moved. - While leaving as is the
base arm 11 which cannot be further swung, thus, only thesecond lever 2 is further gripped and swung toward thefirst lever 1, and thecutter roller 25 located at the tip end of thesecond lever 2 which is swung beyond the second position t2 pushingly drives theholder 30. - As shown in
Figs. 12 and13 , then, theholder 30, and thecutting blade 27 and punchbody 28 which are integrated therewith are forcibly projected and moved against the elastic force of thereturn spring 29. InFigs. 11 ,13 , and the like, the cut and raisedclaw 8 and thestopper 9 are not shown for the sake of simplicity. - First, the
punch portion 28a at the tip end of thepunch body 28 is passed over the substantiallycircular cutaway 5c, and then pushes thetie portion 4 located in thehead portion 5 to cause plastic deformation (press molding), thereby producing an engagement state where the plasticallydeformed portion 4b enters theengagement hole 10 and the escapinghole 5b [seeFig. 13(b) ]. - Moreover, the
blade portion 27a at the tip end of thecutting blade 27 press cuts theprojection tie portion 4a at a position proximity to thehead portion 5. - At this time, the both sides of the
projection tie portion 4a are supported by thehead portion 5 and theguide wall 6a. The place which is in a so-called both-ends supported state is press cut by theblade portion 27a, and an extraprojection tie portion 4a is cut away surely and smoothly. - As shown in
Fig. 13(b) , in a state where thecutting blade 27 is mostly projected, furthermore, thetie portion 4 which is located on the to-be-bound object side of theprojection tie portion 4a is in a state where it is slightly pushed by theblade portion 27a which has been used for cutting. - However, the pushed
tie portion 4 is in a so-called cantilever state due to thehead portion 5, and a tendency to bend toward the to-be-bound object side is originally provided by a tip-end wall 11A. Therefore, the tie portion is pushed so slightly that it receives no action from theblade portion 27a. - Only when the force reaches the preset tightening force, as described above, the
second lever 2 is allowed to be moved from the second position t2 to the third position t3. In the punch cutting step due to the movement to the third position t3, engagement oftie portions 4, and engagement (punch engagement) of thetie portion 4 and thehead portion 5 are performed, and an extraprojection tie portion 4a is cut away. - Since the state where the circular plastically
deformed portion 4b is press inserted into theengagement hole 10 and the escapinghole 5b is obtained, because of the sure punch engagement, the prevention of slipping off of thetie portion 4 itself, and the integration of the tie portion and thehead portion 5 are performed in one stroke, and the bundling state by the preset tightening force can be surely maintained. - After the
projection tie portion 4a is cut, the restriction of thetriangular link 13 by theengagement claw 21 is canceled. In accordance with return swinging of thesecond lever 2 to the first position t1, therefore, the tool is returned to the state (seeFig. 3 ) where thesupport roller 31 is again engaged into the tip-end recess 12a, and the tightening adjusting mechanism f effectively functions. - In the manual binding tool A, as shown in
Figs. 3 ,4 ,14 , and the like, the tightening mechanism a is configured by having thebase arm 11, theengagement claw 21, and thereturn spring 22. The tightening linkage mechanism b is configured by having thetension arm 12, thetriangular link 13, and theengagement groove 26 which is fitted to theintermediate pin 13c. - The cutting linkage mechanism d is configured by having the
cutter roller 25, thetriangular link 13, theengagement groove 26, and thetension arm 12. The switching mechanism e is configured by having the tighteningforce adjusting spring 18, thetension bar 20, thetension arm 12, and thetriangular link 13. - The tightening linkage mechanism b links the both
levers projection tie portion 4a is pulled by relatively approaching swinging in the range within the predetermined relative angle of thefirst lever 1 and thesecond lever 2, i.e., the angle between the first position t1 and the second position t2 about the axis P (the tightening step). The cutting linkage mechanism d links the bothlevers projection tie portion 4a is cut by relatively approaching swinging of thefirst lever 1 and thesecond lever 2 in the predetermined angle, i.e., beyond the second position t2 (the punch cutting step). - Then, the switching mechanism e functions so as to, when the pulling force of the
projection tie portion 4a due to the tightening mechanism a is smaller than the preset value, set the tightening state where the tightening linkage mechanism b is caused to operate, and the cutting linkage mechanism d is caused not to operate, and, when the pulling force of theprojection tie portion 4a due to the tightening mechanism a reaches the preset value, cause the tightening linkage mechanism b not to operate, and the cutting linkage mechanism d to operate. - As shown in
Figs. 14 and the like, the cutting mechanism c has the configuration including the pushing mechanism h which pushes and deforms thetie portion 4 that is located in thehead portion 5 by being wound around the to-be-bound object K and then inserted into thehead portion 5, by thepunch body 28, and which causes the deformed portion (plastically deformed portion) 4b to be engaged into thecircular engagement hole 10 formed in thetie portion 4 onto which thehead portion 5 is previously fitted. - In
Embodiment 1, a metal tie is used as the binding tie B, and therefore the cutting mechanism c is configured by including the pushing mechanism h. In the case where a binding tie configured so that the head portion includes a return preventing mechanism for the tie is used, a manual binding tool A including only the cutting mechanism c may be employed. - Because of the tightening mechanism a (specifically, because there is a play between a timing when the
triangular link 13 andengagement claw 21 which include the fitting between the tip-end pin 13a and thelong hole 21a are pushed by thesecond lever 2, and that when thetip end portion 21c starts to push the tip-endinner wall 11b through theprojection tie portion 4a), the tool is configured in the state where, in accordance with movement in which thefirst lever 1 and thesecond lever 2 are relatively approaching swung by griping the bothlevers Fig. 3 ) where the bothlevers projection tie portion 4a is gripped by the pulling portion i and then pulled by the pulling portion i. - When the
projection tie portion 4a is not gripped by the pulling portion i (at least in the return swinging step), in addition, the return preventing mechanism j functions so as to block a return movement of theprojection tie portion 4a to thehead portion 5. Therefore, the tool is configured so that, just at the moment when the force applied by the fingers is released and the gripping of the first andsecond levers tie portion 4 does not occur. - As described above, according to the manual binding tool A of
Embodiment 1, by the switching mechanism e, when the pulling force of theprojection tie portion 4a is smaller than the preset value, the tightening state where only the tightening mechanism a is caused to operate is set, and, when the pulling force of theprojection tie portion 4a reaches the preset value, the tool is automatically switched to the punch cutting state where only the pushing mechanism h and the cutting mechanism c are caused to operate. Without disposing a third lever, therefore, the tool is configured so that the series of works (tightening and punch cutting) on the binding tie B can be performed simply by performing gripping manipulation of the pair oflevers - Even in either of the tightening and cutting steps, therefore, the state where the first and
second levers - Therefore, it is possible to provide the manual binding tool A in which, without transferring a plurality of fingers, pulling manipulation and cutting manipulation can be performed simply by performing gripping manipulation of the pair of levers, so that the tool can further simplify a binding work, and is very easy to use.
- In
Embodiment 1, in addition, thepunch body 28 is detachably integrated with thecutting blade 27. Therefore, the tool can be made suitable for the binding tie B (seeFigs. 6 and7 ) having the structure in which thetie portion 4 is deformed and inserted into theengagement hole 10 to be engaged therewith, or which is not provided with a so-called self-engaging function (a structure in which punch engagement is performed). When thepunch body 28 is detached, the tool can be used for a binding tie having a structure which is not provided with the punch engagement. Therefore, the tool has further advantages that it is high in versatility so as to suitable for various bonding ties, and easy to use and convenient. - Moreover, the return preventing mechanism j which, when the
projection tie portion 4a is not gripped by the pulling portion i, such as when thesecond lever 2 is openly swung from the second position t2 to the first position t1, blocks a return movement of theprojection tie portion 4a to thehead portion 5 is disposed. Therefore, a possibility that an unexpected situation occurs that thetie portion 4 return moves when theprojection tie portion 4a is not pulled, such as in the return swinging step is eliminated. Therefore, a bothersome manipulation in which the first andsecond lever tie portion 4 is not returned is no longer required, and hence a binding work can be performed easily and smoothly by the fingers. - Furthermore, the conditions for operating the switching mechanism e, i.e., the tightening force can be adjusted by a simple manipulation of rightward or leftward rotating the
adjustment knob 17. Therefore, it is possible also to realize the manual binding tool A in which the tightening force of the binding tie B can be easily adjusted and set in accordance with the to-be-bound object K, and which is highly practically advantageous. -
- 1
- first lever
- 2
- second lever
- 4
- tie portion
- 4a
- projection tie portion
- 4b
- deformed portion
- 5
- head portion
- 10
- hole
- a
- tightening mechanism
- b
- tightening linkage mechanism
- c
- cutting mechanism
- d
- cutting linkage mechanism
- e
- switching mechanism
- f
- tightening adjusting mechanism
- h
- pushing mechanism
- i
- pulling portion
- j
- return preventing mechanism
Claims (2)
- A manual binding tool (A) used for a metal tie (B) having a tie portion (4) and a head portion (5) incorporated in the tie portion, wherein the tool has:a tightening mechanism (a) which pulls a projection tie portion (4a) that projects through the head portion (5), with respect to the head portion;a cutting mechanism (c) having a cutting blade (27), which cuts the projection tie portion (4a) in a place in the vicinity of the head portion (5) by means of the cutting blade;a first lever (1) and second lever (2) which are pivotally coupled to each other and whose gripping manipulation can be performed;a tightening linkage mechanism (b) which links the first lever (1) and the second lever (2) with the tightening mechanism (a) in a state where the projection tie portion (4a) is pulled by relatively approaching swinging in a range within a predetermined relative angle of the both levers; anda cutting linkage mechanism (d) which links the first lever (1) and the second lever (2) with the cutting mechanism in a state where the projection tie portion (4a) is cut by relatively approaching swinging of the both levers beyond the predetermined relative angle, anda switching mechanism (e) is disposed which, when a pulling force of the tightening mechanism (a) is smaller than a preset value, sets a tightening state where the tightening linkage mechanism (b) is caused to operate, and the cutting linkage mechanism (d) is caused not to operate, and, when the pulling force of the tightening mechanism (a) reaches the preset value, causes the tightening linkage mechanism (b) not to operate, and the cutting linkage mechanism (d) to operate,wherein the cutting mechanism (c) includes a pushing mechanism (h) which pushes and deforms a tie portion located in the head portion (5), and which causes the deformed portion (4b) to be engaged into a hole (10) of the tie portion onto which the head portion is previously fitted, characterized in that, the switching mechanism (e) is configured so that, by simply performing the gripping manipulation of the first and second levers (1,2) by which the both levers (1, 2) are caused to swing while relatively approaching, the tightening state where only the tightening mechanism (a) is caused to operate can be shifted to a punch cutting state where only the pushing mechanism (h) and the cutting mechanism (c) are caused to operate, andwherein the tool is configured in a state where, in accordance with movement in which the first lever (1) and the second lever (2) are relatively approaching swung by the tightening mechanism (a) from a waiting state where the both levers are mostly openly swung, the projection tie portion (4a) is gripped by a pulling portion (i) and then pulled by the pulling portion, by means of the tightening mechanism,a return preventing mechanism (j) which, when the projection tie portion (4a) is not gripped by the pulling portion (i), blocks a return movement of the projection tie portion to the head portion (5) is disposed, andthe return preventing mechanism (j) includes a chuck claw (15) placed between the cutting blade (27) and the pulling portion (i) so as to act on the projection tie portion (4a).
- The manual binding tool according to claim 1, wherein a tightening adjusting mechanism (f) which can change setting of a maximum value of a pulling force caused by the tightening mechanism (a)is disposed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2012/070370 WO2014024295A1 (en) | 2012-08-09 | 2012-08-09 | Manual bundling tool |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2883802A1 EP2883802A1 (en) | 2015-06-17 |
EP2883802A4 EP2883802A4 (en) | 2016-02-17 |
EP2883802B1 true EP2883802B1 (en) | 2017-11-29 |
Family
ID=50067576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12882589.0A Active EP2883802B1 (en) | 2012-08-09 | 2012-08-09 | Manual bundling tool |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2883802B1 (en) |
JP (1) | JP6035336B2 (en) |
CN (1) | CN104487352A (en) |
NO (1) | NO2883802T3 (en) |
WO (1) | WO2014024295A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6107842B2 (en) * | 2015-01-19 | 2017-04-05 | ダイキン工業株式会社 | Heat exchanger |
US11008123B2 (en) * | 2016-04-18 | 2021-05-18 | Hellermanntyton Co., Ltd. | Manual binding tool |
KR102185149B1 (en) * | 2016-04-18 | 2020-12-01 | 헤라만타이톤 가부시키가이샤 | Manual binding tool |
CN106953276B (en) * | 2017-05-03 | 2018-05-08 | 谢美玲 | A kind of mechanical equipment circuit bundling device |
CN107380564A (en) * | 2017-09-03 | 2017-11-24 | 许修义 | A kind of automatic testing method and structure for tie tool |
FR3084604B1 (en) * | 2018-08-01 | 2020-07-31 | Legrand France | TIGHTENING CLAMP OF A TIGHTENING COLLAR |
TWM575789U (en) * | 2018-12-11 | 2019-03-21 | 華偉實業股份有限公司 | Cable tie tightening and cutting-off tool |
JP7431059B2 (en) | 2020-03-02 | 2024-02-14 | 株式会社ディスコ | cable tie cutter |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2416092A1 (en) * | 1978-02-01 | 1979-08-31 | Usinage Tubes Pour Electr | AUTOMATIC DEVICE FOR INSTALLING RACK TYPE CLAMPS |
JPS6193022A (en) * | 1984-10-12 | 1986-05-12 | 株式会社 サト−ゴ−セ− | Bundling method and tool therefor |
DE8710185U1 (en) * | 1987-07-24 | 1988-11-17 | Paul Hellermann Gmbh, 2080 Pinneberg, De | |
US5123456A (en) * | 1990-10-05 | 1992-06-23 | Band-It-Idex, Inc. | Banding tool with including clamping plunger |
US6206053B1 (en) * | 1999-11-01 | 2001-03-27 | Panduit Corp. | Cable tie tensioning and severing tool |
CA2496857C (en) * | 2004-02-13 | 2013-10-15 | Thomas & Betts International, Inc. | Cable tie tool having modular tool head |
JP4667075B2 (en) * | 2005-03-04 | 2011-04-06 | ヘラマンタイトン株式会社 | Tightening fastener |
US7373695B2 (en) * | 2005-05-26 | 2008-05-20 | Panduit Corp. | Displacement lock MLT |
JP5297684B2 (en) | 2008-04-25 | 2013-09-25 | ヘラマンタイトン株式会社 | Manual binding tool |
JP5740161B2 (en) * | 2011-01-06 | 2015-06-24 | ヘラマンタイトン株式会社 | Manual binding tool |
-
2012
- 2012-08-09 JP JP2014529213A patent/JP6035336B2/en active Active
- 2012-08-09 CN CN201280074724.XA patent/CN104487352A/en active Pending
- 2012-08-09 WO PCT/JP2012/070370 patent/WO2014024295A1/en active Application Filing
- 2012-08-09 EP EP12882589.0A patent/EP2883802B1/en active Active
- 2012-08-09 NO NO12882589A patent/NO2883802T3/no unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
WO2014024295A1 (en) | 2014-02-13 |
CN104487352A (en) | 2015-04-01 |
NO2883802T3 (en) | 2018-04-28 |
JP6035336B2 (en) | 2016-11-30 |
EP2883802A4 (en) | 2016-02-17 |
EP2883802A1 (en) | 2015-06-17 |
JPWO2014024295A1 (en) | 2016-07-21 |
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