JP2019116326A - Reinforcing bar binding machine - Google Patents

Abstract

To provide a reinforcing bar binding machine capable of improving durability of a wire cutting mechanism and maintaining cutting performance of a movable blade and performing reliable and smooth cutting by supporting both sides of a cutting part of a wire according to double-sided support of the fixed blade of a wire cutting mechanism and a support member and removal of a cause of defective cutting.SOLUTION: In a reinforcing bar binding machine 1, a wire cutting mechanism 61 is a cutter comprising a fixed blade 62 and a movable blade 63 which cuts a wire 5 while being brought into contact with or swinging to the fixed blade 62. On a guide part 6 of the reinforcing bar binding machine 1, a support member 65 for supporting the wire 5 fed out from the fixed blade 62 side on a position of the opposite side rather than a cutting surface of the movable blade 63 in a feeding direction of the wire 5 is provided. The fixed blade 62 supports one side of a wire cutting part 5b upon wire cutting of the movable blade 63 and the support member 65 supports the other side of the wire cutting part 5b upon the wire cutting.SELECTED DRAWING: Figure 5

Description

  In the present invention, the wire reel can be detachably mounted, and the wire pulled out from the mounted wire reel is fed out from the guide portion provided at the tip of the binding machine main body around the reinforcing bar and wound in a loop around the reinforcing bar The present invention relates to a reinforcing bar binding machine that twists and ties reinforcing bars after turning.

  In the reinforcing bar binding machine, two intersecting reinforcing bars are inserted into a curved guide portion provided at the end of the binding machine body, and a wire is pulled out from a wire reel mounted on the binding machine body by a wire feeding device. The wire is wound and curled and fed out, and the wire is looped around the two reinforcing bars. Furthermore, after winding the wire around the two reinforcing bars, the reinforcing bar binding machine cuts (shears) the original side of the wire by the wire cutting mechanism, and one end of the wire loop is a pair of twisting hooks of the wire twisting device The wire is twisted by grasping and rotating it, and the reinforcing bars are tied and bound (for example, Patent Documents 1 and 2).

  Slide cutters and rotary cutters are mainly used for the wire cutting mechanism. The slide cutter consists of a fixed blade in which a wire through hole is formed in the wire feed direction, and a movable blade that slides on the fixed blade to cut the wire. Exists. There are two types of rotary cutters: the inner type of movable blade and the outer type of movable blade. The inner type of movable blade comprises a movable blade having a wire through hole formed in the wire feeding direction and a fixed blade rotatably accommodating the movable blade, and the wire through hole is formed by the rotation of the movable blade. The wire inlet side of the slider slides on the fixed blade to cut (shear) the wire. The type with the movable blade outside consists of a fixed blade with a wire through hole formed in the wire feeding direction and a movable blade rotatably provided around the fixed blade, and the movable blade rotates The movable blade slides on the wire outlet side of the wire through hole of the fixed blade to cut (shear) the wire.

Utility model registration No. 2552384 Patent No. 5309947

  In the conventional reinforcing bar binding machine, when the wire cutting mechanism cuts the wire, the movable blade slides against the fixed blade and cuts, but since the wire is supported by only the fixed blade, There is a problem that the wire may be bent in the cutting direction of the movable blade at the time of cutting, and the cutting may not be possible. Furthermore, the wire is bent and sandwiched between the movable blade and the fixed blade, which may cause problems in the wire cutting mechanism such as breakage of the movable blade and the fixed blade.

  Also, in the conventional reinforcing bar binding machine, as described above, since the wire is supported by only the fixed blade in a cantilever manner, the wire is cut while being deformed under load in the cutting direction of the movable blade at the time of cutting, It requires more than the required load. Therefore, the conventional reinforcing bar binding machine has a problem that the durability of the movable blade is deteriorated and the cutting performance of the movable blade due to wear is deteriorated.

  The present invention has been made in view of the above problems, and when cutting by the wire cutting mechanism, both sides of the wire cutting portion are supported by both the fixed blade and the support member to remove the cause of the cutting defect. , The wire cutting mechanism is prevented from becoming defective, the durability of the wire cutting mechanism is improved, the cutting performance of the movable blade can be maintained, and a reinforcing bar binding machine capable of performing reliable and smooth cutting is provided. The purpose is to

  In the reinforcing bar binding machine according to the present invention, in order to achieve the above object, a wire reel can be detachably mounted, and a wire is drawn out from the mounted wire reel to a guide portion provided at the tip of the binding machine body The wire is wound around the wire at the guide portion and sent out around the reinforcing bar disposed inside the guide portion and wound around the wire, and then the wire is cut by the wire cutting mechanism and the wound portion is twisted. In the reinforcing bar binding machine for binding the reinforcing bars, a support member for supporting the wire fed from the wire cutting mechanism side at a position downstream of the cutting portion of the wire cutting mechanism in the wire feeding direction in the guide portion The support member supports the wire at the time of wire cutting of the wire cutting mechanism.

  In the reinforcing bar binding machine according to claim 2 of the present invention, in order to achieve the above object, the guide portion is provided with a fixing member supported at a position upstream of the cutting portion of the wire cutting mechanism in the wire feeding direction The fixing member supports one of the wire cutting portions at the time of wire cutting, and the supporting member supports the other of the wire cutting portions at the time of wire cutting.

  In the reinforcing bar binding machine according to claim 3 of the present invention, in order to achieve the above object, the wire cutting mechanism cuts the wire by sliding or swinging on the first movable blade and the first movable blade. The first movable blade or the second movable blade supports one of the wire cutting portions at the time of wire cutting, and the support member is a portion of the wire cutting portion at the time of wire cutting. It is characterized by supporting the other.

  In the reinforcing bar binding machine according to claim 4 of the present invention, in order to achieve the above object, the wire cutting mechanism is a cutter including a fixed blade and a movable blade that slides or swings on the fixed blade to cut the wire. The fixed blade supports one of the wire cutting portions at the time of wire cutting, and the support member supports the other of the wire cutting portions at the time of wire cutting.

  In the reinforcing bar binding machine according to claim 5 of the present invention, in order to achieve the above object, the fixed blade is formed with a wire through hole in a wire feeding direction, and the wire is fed out from the wire through hole of the fixed blade. The movable blade is operated on the wire outlet side of the wire through hole of the fixed blade to cut the wire.

  In order to achieve the above object, in the reinforcing bar binding machine according to the present invention, the wire cutting mechanism includes a fixed blade and a movable blade rotatably provided around the fixed blade, and the fixed blade A wire through hole is formed in a wire feeding direction, and the wire is a cutter which is fed from the wire through hole of the fixed blade and cuts the wire by rotation of a movable blade, the fixed blade being One of the wire cutting portions is supported at the time of wire cutting, and the supporting member is characterized by supporting the other of the wire cutting portions at the time of wire cutting.

  In the reinforcing bar binding machine according to the present invention, in order to achieve the above object, the wire cutting mechanism comprises a fixed blade and a rotatable movable blade housed inside the fixed blade, and the movable blade A wire through hole is formed in a wire feeding direction, and the wire is a cutter which is fed from the wire through hole of the movable blade and cuts the wire by rotation of the movable blade, and the fixed blade is One of the wire cutting portions is supported at the time of wire cutting, and the supporting member is characterized by supporting the other of the wire cutting portions at the time of wire cutting.

  In the reinforcing bar binding machine according to claim 8 of the present invention, in order to achieve the above object, the guide portion is provided with a winding and bending mechanism for winding and winding the wire, and the winding and bending mechanism is used for bending the wire. A plurality of guide members are provided for guiding an outer side surface to be an outer side and an inner side surface to be an inner side of bending of the wire, and at least one of the plurality of guide members constitutes the support member.

  The reinforcing bar binding machine according to the present invention is provided with a support member for supporting the wire fed out from the wire cutting mechanism side at a position downstream of the cutting portion of the wire cutting mechanism in the wire feeding direction. Support the wire during wire cutting of the wire cutting mechanism. That is, since the reinforcing bar binding machine according to the present invention supports the wire by the support member at the time of wire cutting of the wire cutting mechanism, the wire is not bent in the cutting direction at the time of cutting, and reliable and smooth cutting can be performed. It has the effect of being able to Moreover, since the reinforcing bar binding machine according to the present invention supports the wire to be cut by the wire cutting mechanism by the support member, only the load necessary for the cutting is sufficient so that the wire is not deformed even when receiving a load in the cutting direction. Thus, there is an effect of preventing the deterioration of the durability of the wire cutting mechanism and the deterioration of the cutting performance of the wire cutting mechanism due to wear.

  In the reinforcing bar binding machine according to the present invention, the guide portion is provided with the fixing member supported at a position on the upstream side of the cutting portion of the wire cutting mechanism in the wire feeding direction. The fixing member supports one of the wire cutting portions at the time of wire cutting, and the supporting member supports the other of the wire cutting portions at the time of wire cutting. That is, since the reinforcing bar binding machine according to the present invention supports both sides of the wire cutting portion by the fixing member and the supporting member at the time of wire cutting of the wire cutting mechanism, the wire does not bend in the cutting direction at the time of cutting. There is an effect that smooth cutting can be performed. In addition, since the reinforcing bar binding machine according to the present invention supports both sides of the cut portion of the wire cut by the wire cutting mechanism by both holding of the fixing member and the support member, the wire receives a load in the cutting direction at the time of cutting. It does not deform, and only the load required for cutting is sufficient, and there is an effect of preventing deterioration in durability of the wire cutting mechanism and deterioration in cutting performance of the wire cutting mechanism due to wear.

  In the reinforcing bar binding machine according to the present invention, the wire cutting mechanism is a cutter including a first movable blade and a second movable blade that slides or swings on the first movable blade to cut the wire. The first movable blade or the second movable blade supports one of the wire cutting portions at the time of wire cutting, and the support member supports the other of the wire cutting portions at the time of wire cutting. That is, since the reinforcing bar binding machine according to the present invention supports both sides of the wire cutting portion with one of the first movable blade or the second movable blade and the supporting member at the time of wire cutting of the pair of movable blades, There is an effect that it is possible to perform reliable and smooth cutting without bending in the cutting direction. In addition, since the wire is not bent in the cutting direction at the time of cutting, the wire is bent and sandwiched between the first movable blade and the second movable blade, and the first movable blade and the second movable blade There is an effect that it is possible to prevent the failure of the wire cutting mechanism such as breakage. In addition, since the reinforcing bar binding machine according to the present invention supports both sides of the cut portion of the wire cut by the pair of movable blades by supporting both the first movable blade or the second movable blade and the support member, Even when the wire receives a load in the cutting direction at the time of cutting, it does not deform, and only the load necessary for cutting is sufficient, and the deterioration of the durability of the pair of movable blades and the cutting performance of the pair of movable blades due to wear It has the effect of preventing a drop.

  In the reinforcing bar binding machine according to the present invention, the wire cutting mechanism is a cutter including a fixed blade and a movable blade that slides or swings on the fixed blade to cut the wire, and the fixed blade is a wire One of the wire cutting portions is supported at the time of cutting, and the support member supports the other of the wire cutting portions at the time of wire cutting. That is, in the reinforcing bar binding machine according to the present invention, since the fixed blade and the supporting member support both sides of the wire cutting portion at the time of wire cutting of the movable blade, the wire does not bend in the cutting direction of the movable blade at the time of cutting There is an effect that reliable and smooth cutting can be performed. In addition, since the wire is not bent in the cutting direction of the movable blade at the time of cutting, the wire is bent and sandwiched between the movable blade and the fixed blade, which causes the failure of the wire cutting mechanism such as breakage of the movable blade and the fixed blade. The effect is that it is possible to prevent Further, since the reinforcing bar binding machine according to the present invention supports both sides of the cut portion of the wire cut by the movable blade by both holding the fixed blade and the support member, the wire receives a load in the cutting direction of the movable blade at the time of cutting. Even if it is not deformed, only the load necessary for cutting is sufficient, and there is an effect of preventing deterioration of the durability of the movable blade and deterioration of the cutting performance of the movable blade due to wear.

  In the reinforcing bar binding machine according to the present invention, since the guide portion is provided with the outer surface that is the outside of the bending of the wire and the plurality of guide members that guide the inner surface that is the inside of the bending of the wire Since the curling diameter of the wire wound in a loop shape can be substantially constant, it is possible to reduce binding failure and to maintain stable wire bonding. Furthermore, by using at least one of the plurality of guide members as the support member, there is no need to separately form a support member, which is inexpensive and has the effect of being able to perform reliable and smooth cutting.

It is a side view showing one example of a reinforcing bar binding machine concerning the present invention. It is the perspective view which looked at the reinforcing bar binding machine of FIG. 1 from diagonally downward. It is side explanatory drawing explaining one wire cutting mechanism of a reinforcing bar binding machine. It is side explanatory drawing explaining the other wire cutting mechanism of a reinforcement bundling machine. It is a side view which shows the 1st Example of the guide part of a reinforcing bar binding machine. It is a side view which shows the 2nd Example of the guide part of a reinforcing bar binding machine. It is a side view which shows the 3rd Example of the guide part of a reinforcing bar binding machine. It is a side view which shows the 4th Example of the guide part of a reinforcing bar binding machine.

  Hereinafter, the reinforcing bar binding machine will be described in detail. As shown in FIG. 1, the reinforcing bar binding machine 1 includes a binding machine body 2 and a guide portion 6 attached to the tip of the binding machine body 2. The binding machine body 2 includes a storage chamber 3 for storing a wire reel, a wire feeding device 10 for pulling out the wire 5 of the wire reel mounted in the storage chamber 3 and feeding it to the guide portion 6, and a trigger for operating the wire feeding device 10. 4 is provided. In the wire feeding device 10, when the trigger 4 is operated, an electric motor (not shown) is driven to feed the wire 5 of the wire reel forward by the feeding roller.

  The guide portion 6 is provided with a gently curved guide frame 13. As shown in FIG. 3, in the wire feeding path of the guide frame 13, a guide part 8 for guiding and feeding out the wire 5 drawn from the wire reel by the wire feeding device, and a predetermined amount of wire 5 by the wire feeding device. Are arranged and fixed in order: a wire cutting mechanism 31 for cutting after being wound around the reinforcing bar 7 and a curl guide 12 for bending the wire 5 sent through the wire cutting mechanism 31. The curl guide 12 is fixed to the distal end side of the guide frame 13 and has a guide groove 20 which guides the wire 5 in a curling direction in cooperation with the guide frame 13.

  As shown in FIG. 3, the wire cutting mechanism 31 is configured to cut the wire 5 when the feed amount of the wire 5 reaches a predetermined amount. The wire cutting mechanism 31 has a fixed blade 32 fixed to the guide frame 13, a movable blade 33 sliding on the fixed blade 32 to cut the wire 5, and a drive lever 16 for moving the movable blade 33 through the link mechanism 37. And a slide cutter of a sliding cutting mechanism.

  In the fixed blade 32, a wire through hole 32a through which the wire 5 passes in the feeding direction of the wire 5 is formed. One end of the wire through hole 32 a opens toward the tip 8 b of the guide component 8, and the other end opens toward the curl guide 12. The opening at one end of the wire through hole 32a is a wire inlet 32c, and the opening at the other end of the wire through hole 32a is a wire outlet 32d.

  The wire cutting mechanism 31 moves the movable blade 33 downward (from the outside to the inside of the curve of the wire) by the drive lever 16 via the link mechanism 37 so that one surface 33 a of the movable blade 33 is a wire of the fixed blade 32. The lower end of one surface 33a of the movable blade 33 slides along the surface 32e on the side of the wire outlet 32d of the through hole 32a so as to cut the wire 5 penetrating the wire through hole 32a. .

  The wire cutting mechanism of the reinforcing bar binding machine is used not only as the slide cutter of the sliding type cutting mechanism described above but also as a rotary cutter of a rotary type cutting mechanism. As shown in FIG. 4, the wire cutting mechanism 51 is configured to cut the wire 5 when the feed amount of the wire 5 reaches a predetermined amount. The wire cutting mechanism 51 includes a circular fixed blade 52 fixed to the guide frame 13, a movable blade 53 rotatably provided around the fixed blade 52, and a drive lever 16 for rotating the movable blade 53. And a rotary cutter.

  In the circular fixed blade 52, a wire through hole 52a is formed penetrating in the feeding direction of the wire 5. One end of the wire through hole 52 a opens toward the tip 8 b of the guide component 8, and the other end opens toward the curl guide 12. The opening at one end of the wire through hole 52a is a wire inlet 52b, and the opening at the other end of the wire through hole 52a is a wire outlet 52c. Further, a wire insertion hole 53 a is formed in the movable blade 53 in the feeding direction of the wire 5. One end of the wire insertion hole 53 a opens toward the wire outlet 52 c of the wire through hole 52 a of the fixed blade 52, and the other end opens toward the curl guide 12. The opening at one end side of the wire insertion hole 53a of the movable blade 53 is a wire entrance 53b, and the opening at the other end side of the wire insertion hole 53a is a wire discharge port 53c.

  The wire cutting mechanism 51 rotates the movable blade 53 in the counterclockwise direction by the drive lever 16 so that the surface of the movable blade 53 on the wire entrance 53b is upward along the surface of the fixed blade 52 on the wire outlet 52c. The lower end edge of the wire entry port 53b of the movable blade 53 cuts the wire 5 which has penetrated the wire through hole 52a.

  As shown in FIG. 3, one end 8 a of the guide component 8 opens to the storage chamber 3 side, and the other end (tip) 8 b opens to the wire cutting mechanism 31 (or 51) side. The other end 8b opening of the guide piece 8 is narrowed relative to the one end 8a opening so that the wire 5 can be led out from the defined position. The side surface of the guide frame 13 may be used also as the side wall of the guide component 8. The guide component 8 comprises a guide component A (8A) disposed on the feed roller side of the wire feeding device 10 as shown in FIG. 1 and a guide component B (8B) disposed on the guide frame 13 side. The guide tube A (8A) has a configuration in which one end is located close to the feed roller of the wire feeding device 10 and the other end is fitted and inserted into the opening of one end 8a of the guide component B (8B) A (8A) and the guide part B (8B) become an integral structure, and become a part of the guide of the wire feed path for feeding the wire 5 from the feed roller side of the wire feeder 10 to the guide frame 13 side. . The guide tube A (8A) and the guide component B (8B) may be configured as a guide component 8 formed in one piece. The curl guide 12 is curved in an arc shape, and the wire 5 sent from the wire feeding device 10 of the binding machine body 2 is curled and curled, and the reinforcing bar 7 is interposed between the lower guide 9 shown in FIG. It is designed to go around the In the guide portion 6, next to the curl guide 12, it is fed out from the curl guide 12, picks up the starting end of the wire 5 which has looped back in a loop shape, and guides it again for the next circulation feed. A curl pickup guide is formed.

  The binding machine body 2 is provided with a wire twisting device that twists the wire 5 wound in a loop around the reinforcing bar to bind the reinforcing bar. The wire twisting device is wound in a loop around the reinforcing bar by moving the sleeve forwardly and pivotally connected with a pair of hooks provided at the P portion of FIG. After gripping the turned wire 5, turn the hook together with the sleeve to twist the wire and bind the rebar, and then open the hook and retract the sleeve to release it from the wire and return it to the initial position The Then, when the sleeve advances to grasp the wire loop, the drive lever 16 of the above-mentioned wire cutting mechanism 31 or 51 is actuated to cut (shear) the wire 5.

  Thus, the reinforcing bar binding machine 1 mounts the wire reel around the reinforcing bar binding wire 5 in the storage chamber 3 provided in the binding machine main body 2 and pulls the trigger 4 to operate the wire reel. The wire 5 is fed to the guide portion 6 provided at the tip of the binding machine main body 2 while rotating the wire, and the wire 5 is wounded by the guide groove 20 of the curl guide 12 of the guide portion 6. The wire 7 is sent out around the arranged reinforcing bar 7 and wound around it, and then the original side of the wire 5 is cut, and the wound portion is twisted to bind the reinforcing bar 7.

  As shown in FIG. 3, a first guide pin 23 as a first curling guide member is provided on the cut-out upper portion of the guide component 8. The first guide pin 23 protrudes to the inside (guide passage side) of the guide part 8. Thereby, the outer side surface which constitutes the outside of the bending of the wire 5 is guided by the first guide pin 23.

  Further, a third guide pin 25 as a third winding guide member is provided inside the tip of the curl guide 12. The third guide pin 25 is attached so as to project slightly inward of the guide surface 21 of the curl guide 12. Therefore, the outer surface of the bend of the wire 5 fed along the guide groove 20 of the curl guide 12 contacts the third guide pin 25 and is fed downward. The first and third guide pins 23 and 25 are preferably made of a material having high hardness, such as cemented carbide pins (cemented carbide pins and ceramic pins).

  As described above, the wire delivered from the guide part 8 contacts the first guide pin 23 disposed on the notched upper side of the guide part 8 and passes through the wire cutting mechanism 31 or 51, The wire 5 is fed along the inner surface of the curl guide 12 and hit against the third guide pin 25 to be strongly bent. Thus, the wire 5 contacts the first and third guide pins 23 and 25 having high hardness.

  In the reinforcing bar binding machine 1, when the wire cutting mechanism 31, 51 cuts the wire 5, the movable blades 33, 53 slide against the fixed blades 32, 52 for cutting, but the wire 5 is a fixed blade. Since it is supported by only 32 and 52 cantilevers, the wire 5 on the free end side may be bent in the cutting direction of the movable blades 33 and 53 at the time of cutting, and the cutting may not be possible. Furthermore, the wire 5 is bent and sandwiched between the movable blades 33, 53 and the fixed blades 32, 52, causing the failure of the wire cutting mechanism 31, 51 such as breakage of the movable blades 33, 53 and the fixed blades 32, 52. It could have been Further, since the wire 5 is supported by only the fixed blades 32 and 52 in a cantilever manner, the wire on the free end side is cut while being deformed under load in the cutting direction of the movable blades 33 and 53 at the time of cutting, which is necessary for cutting Power is required to Therefore, the durability of the movable blades 33, 53 may deteriorate, and the cutting performance of the movable blades 33, 53 due to wear may also decrease.

  Therefore, the reinforcing bar binding machine 1 is provided with a support member for supporting the other of the wire cutting portions when cutting one of the wire cutting portions supported by the fixed blade, and the wire cutting mechanism cuts the wire when cutting by the wire cutting mechanism. Both sides of the part are supported by both the fixed blade and the support member, the cause of the cutting defect is removed, the wire cutting mechanism is prevented from becoming a defect, the durability of the wire cutting mechanism is improved, and the movable blade cutting performance It is possible to maintain a reliable and smooth cutting.

  A first embodiment of the guide portion 6 will be described. As shown in FIG. 5A, the wire cutting mechanism 61 is configured to cut the wire 5 when the feed amount of the wire 5 reaches a predetermined amount. That is, the wire cutting mechanism 61 includes a fixed blade 62 fixed to the guide frame 13, a movable blade 63 sliding on the fixed blade 62 to cut the wire 5, and a drive lever 16 for moving the movable blade 63. Slide cutter.

  In the fixed blade 62, a wire through hole 62a is formed to penetrate in the feeding direction of the wire 5. One end of the wire through hole 62 a is open toward the leading end 8 b of the guide component 8, and the other end is open toward the curl guide 12. The opening at one end of the wire through hole 62a is a wire inlet 62b, and the opening at the other end of the wire through hole 62a is a wire outlet 62c.

  As shown in FIG. 5B, the wire cutting mechanism 61 moves the movable blade 63 downward (from the outside to the inside of the curve of the wire) by the drive lever 16 to fix one surface 63a of the movable blade 63. The wire 62 slides downward along the surface on the wire outlet 62c side of the wire through hole 62a of the blade 62, and the lower edge of one surface (cut surface) 63a of the movable blade 63 cuts the wire 5 penetrating the wire through hole 62a It is supposed to

  In the guide frame 13, the wire 5 delivered from the wire through hole 62a of the fixed blade 62 is located on the downstream side (opposite side) of one surface (cutting surface) 63a of the movable blade 63 in the feeding direction of the wire 5. A support pin (support member) 65 for supporting is provided. The fixed blade 62 supports one of the wire cutting portions 5 b when cutting the wire of the movable blade 63. The support pin 65 supports the other of the wire cutting portion 5 b when cutting the wire of the movable blade 63. That is, when cutting the wire of the movable blade 63, the fixed blade 62 and the support pin 65 support both sides of the wire cutting portion 5b.

  In the movable blade 63, the lower end portion 63c pushes out a cut portion (hereinafter referred to as a terminal end portion) 5b of the wire 5 cut and separated in the cutting direction (downward). The support pin 65 also has a function as an abutting portion which abuts on one side 5 c on the end 5 b side of the wire 5 pushed out by the movable blade 63 and bends the one side 5 c. One side 5 c of the end portion 5 b of the wire 5 pushed out by the lower end portion 63 c of the movable blade 63 is bent by the support pin 65. Therefore, the reinforcing bar binding machine 1 holds the one end 5 c on the end 5 b side after cutting the wire 5 so as to be sandwiched between the lower end 63 c of the movable blade 63 and the support pin 65. One side 5c on the end 5b side of the wire 5 is a position where the support pin 65 contacts.

  In the reinforcing bar binding machine 1, after the wire 5 is wounded by the guide portion 6 and wound around the reinforcing bar 7 according to the above configuration, the wire cutting mechanism 61 operates and the movable blade 63 moves downward. Although cutting is performed, since the fixed blade 62 and the support pin 65 support both sides of the wire cutting portion 5b at the time of wire cutting of the movable blade 63, the free end side of the wire 5 may be bent in the cutting direction of the movable blade 63 at the time of cutting. It is possible to make a reliable and smooth cutting. As shown in FIG. 5B, after cutting, the end 5b of the wire 5 cut by the lower end 63c of the movable blade 63 is pushed out in the cutting direction (downward), and one side 5c of the end 5b of the wire 5 is cut. It bends with the support pin 65.

  The movable blade 63 stops at the cut position after cutting. The lower end 63 c of the movable blade 63 and the support pin 65 sandwich the one side 5 c of the end 5 b of the wire 5. As a result, one end 5 c of the end portion 5 b of the wire 5 is held by the lower end portion 63 c of the movable blade 63 and the support pin 65. The start end 5 a of the wire 5 is caught and pressed on a portion including the end 5 b of the wire 5 held by the guide 6, so it can not move freely. Thus, in the state in which both ends 5a and 5b are held, even if the wire is twisted, both ends 5a and 5b of the wire 5 can be retained on the back side of the reinforcing bar by the wire twisting device. The wire 5 can be bent by using the operation of cutting the wire 5 of the movable blade 63 and the support pin 65 to hold the wire end 5b.

  Since the movable blade 63 returns to the original position before cutting after bundling the reinforcing bars, the holding of the one side 5c on the wire end 5b side is released, and both ends 5a of the wire 5 cut from the binding machine body 2 and twisted , 5b can be removed smoothly and easily without deformation.

  Although the first embodiment has been described with respect to the upper and lower sliding type wire cutting mechanism 61, the same function and effect can be obtained even when applied to the rocking type wire cutting mechanism 71 as shown in FIG. 6 (a). It goes without saying that you can achieve The wire cutting mechanism 71 is configured to cut the wire 5 when the feed amount of the wire 5 reaches a predetermined amount. That is, the wire cutting mechanism 71 includes a fixed blade 72 fixed to the guide frame 13, a movable blade 73 sliding on the fixed blade 72 to cut the wire 5, and a swing lever 76 for moving the movable blade 73. Slide cutter.

  The fixed blade 72 is integrally formed at the distal end of the guide component 8, and a wire through hole 72 a is formed penetrating in the feeding direction of the wire 5. One end of the wire through hole 72 a is continuous with the distal end opening of the guide component 8, and the other end is open toward the curl guide 12. The opening at the other end of the wire through hole 72a is a wire outlet 72c.

  As shown in FIG. 6B, the wire cutting mechanism 71 moves the movable blade 73 downward (from the outside to the inside of the curve of the wire) by the rocking lever 76 to move one surface 73a of the movable blade 73 ( Cutting surface) slides downward along the surface on the wire outlet 72c side of the wire through hole 72a of the fixed blade 72, and the lower end edge of one surface 73a (cutting surface) of the movable blade 73 penetrates the wire through hole 72a The wire 5 is cut.

  In the guide frame 13, the wire 5 delivered from the wire through hole 72a of the fixed blade 72 is located on the downstream side (opposite side) of one surface (cut surface) 73a of the movable blade 73 in the feeding direction of the wire 5. A support pin (support member) 75 for supporting is provided. The fixed blade 72 supports one of the wire cutting portions 5 b when cutting the wire of the movable blade 73. The support pin (support member) 75 supports the other of the wire cutting portion 5 b when cutting the wire of the movable blade 73. That is, when cutting the wire of the movable blade 73, the fixed blade 72 and the support pin 75 support both sides of the wire cutting portion 5b.

  In the movable blade 73, the lower end portion 73c pushes out the cut end (hereinafter referred to as a terminal end) 5b of the wire 5 cut and separated in the cutting direction (downward). The support pin 75 also has a function as an abutting portion which abuts on one side 5 c on the side of the end portion 5 b of the wire 5 pushed out by the movable blade 73 and is bent. One side 5 c of the end portion 5 b side of the wire 5 pushed out by the lower end portion 73 c of the movable blade 73 is bent by the support pin 75. Therefore, the reinforcing bar binding machine 1 holds the one end 5 c on the end 5 b side after cutting the wire 5 so as to be sandwiched between the lower end 73 c of the movable blade 73 and the support pin 75. The one side 5c on the end 5b side of the wire 5 is a position where the support pin 75 contacts.

  In the reinforcing bar binding machine 1, after the wire 5 is wounded around the reinforcing bar 7 with the above configuration, the wire cutting mechanism 71 operates and the movable blade 73 moves downward. Although cutting is performed, since the fixed blade 72 and the support pin 75 support both sides of the wire cutting portion 5b at the time of wire cutting of the movable blade 73, the free end side of the wire 5 may be bent in the cutting direction of the movable blade 73 at the time of cutting. It is possible to make a reliable and smooth cutting. After cutting, the end 5b of the wire 5 cut by the lower end 73c of the movable blade 73 is pushed out in the cutting direction (downward), and one side 5c on the end 5b of the wire 5 is bent by the support pin 75.

  The movable blade 73 stops at the cut position after cutting. The lower end portion 73 c of the movable blade 73 and the support pin 75 sandwich the one side 5 c of the end portion 5 b of the wire 5. As a result, one end 5 c of the end portion 5 b of the wire 5 is held by the lower end portion 73 c of the movable blade 73 and the support pin 75. The start end 5 a of the wire 5 is caught and pressed on a portion including the end 5 b of the wire 5 held by the guide 6, so it can not move freely. Thus, in the state in which both ends 5a and 5b are held, even if the wire is twisted, both ends 5a and 5b of the wire 5 can be retained on the back side of the reinforcing bar by the wire twisting device. The wire 5 can be bent by using the operation of cutting the wire 5 of the movable blade 73 and the support pin 75 to hold the wire end 5b.

  Since the movable blade 73 returns to the original position before cutting after bundling the reinforcing bars, the holding of the one side 5c on the end 5b side of the wire is released, and both ends 5a of the wire 5 cut from the binding machine 2 and twisted , 5b can be removed smoothly and easily without deformation.

  The first and second embodiments have been described using the upper and lower sliding wire cutting mechanisms 61 and 71, but as the third embodiment, as shown in FIG. It goes without saying that the same effects can be achieved even when applied to The wire cutting mechanism 101 is configured to cut the wire 5 when the feed amount of the wire 5 reaches a predetermined amount. That is, the wire cutting mechanism 101 comprises a circular fixed blade 102 fixed to the guide frame 13, a movable blade 103 rotatably provided around the fixed blade 102, and a drive lever for rotating the movable blade 103. 16 is a rotary cutter.

  A wire through hole 102 a is formed in the circular fixed blade 102 in the feeding direction of the wire 5. One end of the wire through hole 102 a is open toward the tip 8 b of the guide component 8, and the other end is open toward the curl guide 12. The opening on one end side of the wire through hole 102a is a wire inlet 102b, and the opening on the other end side of the wire through hole 102a is a wire outlet 102c. Further, a wire insertion hole 103 a is formed in the movable blade 103 in the feeding direction of the wire 5. One end of the wire insertion hole 103 a opens toward the wire outlet 102 c of the wire through hole 102 a of the fixed blade 102, and the other end opens toward the curl guide 12. The opening at one end side of the wire insertion hole 103a of the movable blade 103 is the wire entrance 103b, and the opening at the other end side of the wire insertion hole 103a is the wire discharge port 103c.

  As shown in FIG. 7B, the wire cutting mechanism 101 rotates the movable blade 103 in the counterclockwise direction by the drive lever 16 so that the surface (cut surface) 103e of the movable blade 103 on the wire entrance 103b side. Slides upward along the surface of the fixed blade 102 on the wire outlet 102 c side, and the lower end edge of the wire entrance 103 b of the movable blade 103 cuts the wire 5 penetrating the wire through hole 102 a .

  The guide frame 13 supports the support pin (the opposite side) to the wire 5 fed from the wire through hole 102a of the fixed blade 102 at the downstream side (opposite side) of the cutting surface 103e of the movable blade 103 in the feeding direction of the wire 5 A supporting member) 105 is provided. The fixed blade 102 supports one of the wire cutting portions 5 b when cutting the wire of the movable blade 103. The support pin (support member) 105 supports the other of the wire cutting portion 5 b when cutting the wire of the movable blade 103. That is, when cutting the wire of the movable blade 103, the fixed blade 102 and the support pin 105 support both sides of the wire cutting portion 5b.

  The movable blade 103 cuts the wire 5, and the lower end edge 103d of the wire discharge port 103c of the wire insertion hole 103a is cut and separated at the cut end (hereinafter referred to as a terminal end) 5b side. Push one side 5c in the cutting direction (upward). The support pin 105 also has a function as an abutting portion that abuts on one side 5 d on the side of the end portion 5 b of the wire 5 pushed out by the movable blade 103 and bends it. One side 5 d on the end 5 b side of the wire 5 pushed out by the lower end edge 103 d of the movable blade 103 is bent by the support pin 105. Therefore, the reinforcing bar binding machine 1 holds one side 5 d on the end portion 5 b side after cutting the wire 5 by sandwiching the lower end edge 103 d of the wire insertion hole 103 a of the movable blade 103 and the support pin 105. One side 5 d on the end 5 b side of the wire 5 is a position where the support pin 105 contacts.

  In the reinforcing bar binding machine 1, after the wire 5 is wounded around the reinforcing bar 7 with the above configuration, the wire cutting mechanism 101 operates and the movable blade 103 rotates upward. The lower end edge of the wire entrance 103 b of the movable blade 103 cuts the wire 5. Since both sides of the wire cutting portion 5b are supported by the fixed blade 102 and the support pin 105 at the time of wire cutting of the movable blade 103, the free end side of the wire 5 is not bent in the cutting direction of the movable blade 103 at the time of cutting. Smooth cutting. As shown in FIG. 7B, after cutting, the lower end 103d of the wire discharge port 103c of the movable blade 103 pushes up one side 5c on the end 5b side of the cut wire 5 in the cutting direction (upward) to move the movable blade. One end 5d of the end portion 5b of the wire 5 is held by the lower end edge 103d of the wire outlet 103c 103 and the support pin 105. The movable blade 103 stops at the cut position after cutting. Thus, the movable blade 103 and the support pin 105 hold the one side 5 d of the end portion 5 b of the wire 5.

  The start end 5 a of the wire 5 is caught and pressed on a portion including the end 5 b of the wire 5 held by the guide 6, so it can not move freely. Thus, in the state in which both ends 5a and 5b are held, even if the wire is twisted, both ends 5a and 5b of the wire 5 can be retained on the back side of the reinforcing bar by the wire twisting device. Since the end 5 b of the wire 5 is sandwiched between the movable blade 103 and the support pin 105 by using the operation of the movable blade 103 when cutting the wire 5, it can be held securely.

  Since the movable blade 103 returns to the original position before cutting after bundling the reinforcing bars, the holding of one side 5d of the end portion 5b of the wire is released, and both ends 5a of the wire 5 cut from the binding machine 2 and twisted It can be removed smoothly and easily without deforming 5b.

  The guide portion 6 of the reinforcing bar binding machine 1 is provided with a winding and bending mechanism that curls the wire 5 and applies a winding crease and sends it out. The wire 5 guided and led out by the guide part 8 is curled and curled by the winding and bending mechanism, is fed by a predetermined amount, wound around the reinforcing bar 7, and is cut by the wire cutting mechanism. .

  Further, in the third embodiment, the fixed blade and the movable blade of the wire cutting mechanism of the rotary cutter are reversed, that is, the cylindrical fixed blade fixed to the guide frame 13 as shown in FIG. The same function and effect can be achieved even with the configuration from the rotatably provided movable blade housed inside the fixed blade and the drive lever 16 for rotating the movable blade. The fourth embodiment will be described below.

  As shown in FIG. 8, the wire cutting mechanism 91 is configured to cut the wire 5 when the feed amount of the wire 5 reaches a predetermined amount. That is, the wire cutting mechanism 91 is provided with a circular shaft-like movable blade 92 rotatably provided, and a fixed blade 93 fixed to the guide frame 13 and rotatably accommodating the circular shaft-like movable blade 92. The rotary cutter comprises a drive lever 16 for rotating the movable blade 92.

  A wire through hole 92 a is formed through the circular movable blade 92 in the feeding direction of the wire 5. One end of the wire through hole 92 a is open toward the leading end 8 b of the guide component 8, and the other end is open toward the curl guide 12. The opening at one end of the wire through hole 92a is a wire inlet 92b, and the opening at the other end of the wire through hole 92a is a wire outlet 92c. In addition, a wire insertion hole 93 a is formed in the fixed blade 93 in the feeding direction of the wire 5. One end of the wire insertion hole 93a opens toward the guide component 8, and the other end of the wire insertion hole 93a opens toward the wire inlet 92b of the wire through hole 92a of the movable blade 92. The opening at one end of the wire insertion hole 93a is the wire entrance 93b, and the opening at the other end of the wire insertion hole 93a is the wire outlet 93c.

  As shown in FIG. 8B, the wire cutting mechanism 91 rotates the movable blade 92 in the counterclockwise direction by the drive lever 16 so that the surface (cut surface) 92f of the movable blade 92 on the wire inlet 92b side is The upper edge 92d of the wire inlet 92b of the movable blade 92 slides downward along the surface on the wire discharge port 93c side of the fixed blade 93 so as to cut the wire 5 penetrating the wire through hole 92a. .

  The guide frame 13 is a support pin for supporting the wire 5 delivered from the wire through hole 92a of the movable blade 92 at a position downstream (opposite side) of the cutting surface 92f of the movable blade 92 in the feeding direction of the wire 5 A supporting member) 96 is provided. The fixed blade 93 supports one of the wire cutting portions 5 b when cutting the wire of the movable blade 92. The support pin (support member) 96 supports the other of the wire cutting portion 5 b when cutting the wire of the movable blade 92. That is, when cutting the wire of the movable blade 92, the fixed blade 93 and the support pin 96 support both sides of the wire cutting portion 5b.

  The movable blade 92 cuts the wire 5, and the lower end 92e of the wire outlet 92c of the wire through hole 92a is cut and separated on the side of the cut end (hereinafter referred to as the end) 5b of the wire 5. The one side 5c is pushed in the anti-cutting direction (upward) and bent to form a bent portion. Accordingly, in the reinforcing bar binding machine 1, the lower end edge 92 e of the wire through hole 92 a of the movable blade 92 holds the one side 5 c on the end 5 b side as the bent portion after bending the wire 5. The upper end edge 92d side of the movable blade 92 holds the end portion 5b. Furthermore, the end 5 d near the end of the wire 5 is held by the support pin 96. The one side 5 c on the end 5 b side of the wire 5 is a position at which the lower end edge 92 e of the wire through hole 92 a of the movable blade 92 contacts.

  In the reinforcing bar binding machine 1, after the wire 5 is wounded by the guide portion 6 and wound around the reinforcing bar 7 according to the above configuration, the wire cutting mechanism 91 operates and the movable blade 92 rotates. The upper end edge 92 d of the wire inlet 92 b of the wire through hole 92 a of the movable blade 92 cuts the wire 5. Since both sides of the wire cutting portion 5b are supported by the fixed blade 93 and the support pin 96 at the time of wire cutting of the movable blade 92, the free end side of the wire 5 is not bent in the cutting direction of the movable blade 92 at the time of cutting. Smooth cutting. Almost simultaneously with the cutting, the lower end 92e of the wire outlet 92c of the wire penetrating hole 92a of the movable blade 92 pushes up the one side 5c on the terminal end 5b side of the cut wire 5 in the cutting direction (upward) to move this one side 5c to the movable blade The lower end edge 92e of the 92 wire through holes 92a holds the end portion 5b of the wire 5 and the upper end edge 92d side of the movable blade 92 holds it. Further, the support pin 96 holds the vicinity 5 d of the end portion of the wire 5. The movable blade 92 stops at the cut position after cutting. Thus, one side 5c of the end 5b of the wire 5 is held by the lower end 92e of the wire outlet 92c of the movable blade 92, and the end 5b of the wire 5 is held by the upper edge 92d of the wire inlet 92b of the movable blade 92 Thus, the end 5 d near the end of the wire 5 is held by the guide pin 95.

  The start end 5 a of the wire 5 is caught and pressed on a portion including the end 5 b of the wire 5 held by the guide 6, so it can not move freely. Thus, in the state in which both ends 5a and 5b are hold | maintained, even if the wire 5 is twisted by the wire twisting apparatus, both ends 5a and 5b of the wire 5 can be kept on the back side of a reinforcement. The end 5 b of the wire 5 can be reliably held by the movable blade 92 and the guide pin 95 by utilizing the movement of the movable blade 92 when cutting the wire 5.

  Since the movable blade 92 returns to the original position before cutting after rebar binding, the holding of the end portion 5b side of the wire 5 is released, and both ends 5a and 5b of the wire 5 cut from the binding machine body 2 are twisted. It can be removed smoothly and easily without deformation.

  The above-described winding and bending mechanism is a first guide for guiding the outer surface which becomes the outside of bending of the wire 5, which is sequentially disposed on the wire feeding path from the wire outlet 8b of the end of the guide part 8 or its vicinity. The first guide member 23 as a winding guide member, the second guide member 24 as a second winding guide member for guiding the inner side surface which is the inside of the bending of the wire, and the side surface of the bending of the wire The fourth guide member 65 (75, 96, 105) as the fourth winding guide member and the third guide as the third winding guide member for guiding the outer surface which becomes the outside of the bending of the wire It consists of the member 25. The fourth guide members 65, 75, 96, as shown in FIGS. The fourth guide member 105, as shown in FIG. 7, guides the outer surface which is the outside of the bending of the wire. The reinforcing bar binding machine 1 is arranged on the wire feeding path at the time of feeding the wire. The winding and bending mechanism, that is, the first guide member 23, the second guide member 24, and the fourth guide members 65 (75 , 96, 105) and the third guide member 25 in order to bring the wire 5 into contact and curl the wire 5.

  The guide members 23 to 25 and 65 (75, 96 and 105) are each formed of a cylindrical guide pin having a circular cross section. The guide pin is preferably made of a material having high hardness, such as a cemented carbide pin (cemented carbide pin or ceramic pin), because it becomes difficult to wear. Further, the first guide member and the second guide member may have a shape of a guide portion integrally formed on the guide component 8 instead of a pin shape. Also, the third guide member may not have a pin shape, but may have a shape of a guide portion integrally formed on the curled guide 12. Furthermore, the fourth guide member may not have a pin shape, but may have a shape of a guide portion of a convex portion provided on the guide frame 13.

  Specifically, the first guide pin 23 is provided in the notch at the top of the tip 8 b of the guide part 8. The second guide pin 24 is provided on the lower side of the tip 8 b of the guide part 8. The third guide pin 25 is disposed inside the rear end of the curl guide 12. The fourth guide pin 65 (75, 96, 105) is disposed inside the tip of the curl guide 12 as shown in FIGS.

  Thus, the wire 5 delivered from the guide part 8 is guided such that the outer surface forming the outer side of the bend of the wire 5 contacts the first guide pin 23 and the inner surface forms the inner side of the wire 5 Is guided in contact with the second guide pin 24 and passes through the fixed blade 62 (72, 102) or the wire through hole 62a (72a, 92a, 102a) of the movable blade 92, and the guide surface 21 of the curl guide 12 Side of the bend of the wire 5 fed out along the guide is brought into contact with the fourth guide pin 65 (75, 96, 105) and the outer surface of the bend of the wire 5 contacts the third guide pin 25 It is guided and rolled downward and sent downward. One guide pin of the winding and bending mechanism for winding the wire 5, that is, the fourth guide pin 65 (75, 96, 105) can function as the above-described support pin (support member).

  In the above embodiment, so-called double-end support in which both sides of the cut portion 5b of the wire 5 are supported by the fixed blades 62, 72, 93, 102 and the support members 65, 75, 96, 105 has been described. That is, in order to reliably transmit the force in the cutting direction applied to the wire 5 to the cutting of the wire 5 at the time of the wire cutting by the wire cutting mechanism 61, 71, 91, 101, the wire 5 is opposite to the wire cutting direction. Support members 65, 75, 96, and 105 are provided on the guide portion 6 of the reinforcing bar binding machine 1 so as not to deform. Thus, the wire 5 fed from the wire cutting mechanism 61, 71, 91, 101 is supported at a position downstream of the cutting portion of the wire cutting mechanism 61, 71, 91, 101 in the feeding direction of the wire 5. If the support members 65, 75, 96, 105 are provided in the guide portion 6 of the reinforcing bar binding machine 1, the support members 65, 75, 96, 105 can be used for wire cutting of the wire cutting mechanisms 61, 71, 91, 101 5 will be supported. Since the reinforcing bar binding machine 1 supports the wire 5 by the support members 65, 75, 96, 105 at the time of wire cutting of the wire cutting mechanism 61, 71, 91, 101, the wire 5 may be bent in the cutting direction at the time of cutting. It is possible to make a reliable and smooth cutting.

  In addition, the fixed blades 62 and 72 are replaced with a fixed member having no blade, or a fixed member is separately provided to the fixed blades 62 and 72, and the wire 5 is supported by both holding members and support members 65 and 75. It is good. That is, the guide members 6 of the reinforcing bar binding machine 1 are provided with the fixing members 62 and 72 supported at positions upstream of the cutting portions of the wire cutting mechanisms 61 and 71 in the feeding direction of the wire 5. The fixing members 62, 72 support one of the wire cutting portions 5b at the time of wire cutting, and the support members 65, 75 support the other of the wire cutting portions 5b at the time of wire cutting. The reinforcing bar binding machine 1 supports both sides of the wire cutting portion 5b by the fixing members 62, 72 and the supporting members 65, 75 when cutting the wire of the wire cutting mechanism 61, 71, so the wire 5 is bent in the cutting direction It is possible to make sure and smooth cutting without any trouble.

  Furthermore, the fixed blades 62, 72, 93, 102 may be movable blades, and cutting may be performed by a pair of movable blades. That is, the wire cutting mechanism 61, 71, 91, 101 slides or swings on the first movable blade 62, 72, 93, 102 and the first movable blade 62, 72, 93, 102 so that the wire is cut. A cutter having a second movable blade 63, 73, 92, 103 for cutting 5 is used. The first movable blade 62, 72, 93, 102 or the second movable blade 63, 73, 92, 103 supports one of the wire cutting portions 5b at the time of wire cutting. The support members 65, 75, 96, and 105 support the other of the wire cutting portion 5b at the time of wire cutting. Thus, the reinforcing bar binding machine includes one of the first movable blade 62, 72, 93, 102 or the second movable blade 63, 73, 92, 103 and the support member 65 when cutting the wire of the pair of movable blades. Since both sides of the wire cutting portion 5b are supported at 75, 96 and 105, the wire 5 is not bent in the cutting direction at the time of cutting, so that reliable and smooth cutting can be performed.

  The present invention is applicable to a reinforcing bar binding machine.

1 rebar binding machine 2 binding machine main body 3 storage room 4 trigger 5 wire 5a start end 5b end part (wire cut end)
5c One side 5d One side 6 Guide part 7 Rebar 8 Guide part 8a One end (tip)
8b Other end (tip)
8A Guide part A
8B Guide parts B
9 lower guide 10 wire feeder 12 curl guide 13 guide frame 16 drive lever 20 guide groove 21 guide surface 23 first guide pin (first guide member)
24 Second guide pin (second guide member)
25 Third Guide Pin (Third Guide Member)
31 wire cutting mechanism 32 fixed blade 32a wire through hole 32c wire inlet 32d wire outlet 32e one side 33 movable blade 33a one side 37 link mechanism 51 wire cutting mechanism 52 fixed blade 52a wire through hole 52b wire inlet 52c wire outlet 53 movable Blade 53a Wire insertion hole 53b Wire entrance 53c Wire outlet 61 Wire cutting mechanism 62 Fixed blade (fixed member)
62a wire through hole 62b wire inlet 62c wire outlet 63 movable blade 63a one surface (cut surface)
63c lower end 65 support pin (support member fourth guide member)
71 Wire cutting mechanism 72 Fixed blade (fixed member)
72a wire through hole 72c wire outlet 73 movable blade 73a one surface (cut surface)
73c lower end 75 support pin (support member fourth guide member)
76 Swing lever 91 Wire cutting mechanism 92 Movable blade 92a Wire through hole 92b Wire inlet 92c Wire outlet 92d Upper edge 92e Lower edge 92f Wire inlet side (cut surface)
93 fixed blade 93a wire insertion hole 93b wire inlet 93c wire outlet 96 support pin (support member fourth guide member)
DESCRIPTION OF SYMBOLS 101 Wire cutting mechanism 102 Fixed blade 102a Wire through hole 102b Wire inlet 102c Wire outlet 103 Movable blade 103a Wire insertion hole 103b Wire inlet 103c Wire outlet 103d Lower end edge 103e Surface of wire inlet (cut surface)
105 Support pin (support member fourth guide member)

Claims (8)

The wire reel can be detachably mounted, and the wire is pulled out from the mounted wire reel and sent to a guide portion provided at the tip of the binding machine main body, and the wire is wounded by the guide portion and the inner side of the guide portion In a reinforcing bar binding machine that feeds out around a placed reinforcing bar and winds around the wire and then cuts the wire with a wire cutting mechanism and twists the wound portion to bind the reinforcing bar,
The guide portion is provided with a support member for supporting the wire fed out from the wire cutting mechanism side at a position downstream of the cutting portion of the wire cutting mechanism in the wire feeding direction,
The said support member supports a wire at the time of wire cutting of a wire cutting mechanism, The reinforcing bar binding machine characterized by the above-mentioned. The guide portion is provided with a fixing member supported at a position upstream of the cutting portion of the wire cutting mechanism in the wire feeding direction,
The fixing member supports one of the wire cutting portions at the time of wire cutting,
The reinforcing bar binding machine according to claim 1, wherein the support member supports the other of the wire cutting portions at the time of wire cutting. The wire cutting mechanism is a cutter including a first movable blade and a second movable blade that slides or swings on the first movable blade to cut a wire.
The first movable blade or the second movable blade supports one of the wire cutting portions at the time of wire cutting,
The reinforcing bar binding machine according to claim 1, wherein the support member supports the other of the wire cutting portions at the time of wire cutting. The wire cutting mechanism is a cutter including a fixed blade and a movable blade that slides or swings on the fixed blade to cut the wire.
The fixed blade supports one of the wire cutting portions at the time of wire cutting,
The reinforcing bar binding machine according to claim 1, wherein the support member supports the other of the wire cutting portions at the time of wire cutting. The fixed blade is formed with a wire through hole in the wire feeding direction,
The wire is fed from a wire through hole of the fixed blade,
5. The reinforcing bar binding machine according to claim 4, wherein the movable blade is operated on the wire outlet side of the wire through hole of the fixed blade to cut the wire. The wire cutting mechanism includes a fixed blade and a movable blade rotatably provided around the fixed blade, and the fixed blade is formed with a wire through hole in the wire feeding direction, and the wire is cut. A cutter which is fed from the wire through hole of the fixed blade and cuts the wire by rotation of the movable blade,
The fixed blade supports one of the wire cutting portions at the time of wire cutting,
The reinforcing bar binding machine according to claim 1, wherein the support member supports the other of the wire cutting portions at the time of wire cutting. The wire cutting mechanism includes a fixed blade and a rotatable movable blade housed inside the fixed blade, and the movable blade is formed with a wire through hole in the wire feeding direction, and the wire A cutter which is fed from the wire through hole of the movable blade and cuts the wire by rotation of the movable blade,
The fixed blade supports one of the wire cutting portions at the time of wire cutting,
The reinforcing bar binding machine according to claim 1, wherein the support member supports the other of the wire cutting portions at the time of wire cutting. The guide portion is provided with a winding and bending mechanism for putting a winding wrinkle on a wire;
The winding and bending mechanism is provided with an outer surface which is an outer side of the bending of the wire and a plurality of guide members which guide an inner surface which is an inner side of the bending of the wire.
The reinforcing bar binding machine according to any one of claims 1 to 7, wherein at least one of the plurality of guide members constitutes the support member.

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