JP2736208B2 - Binding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding machine, and more particularly to a binding machine.
The present invention relates to improvement of a rotating body used in a binding machine.

[0002]

2. Description of the Related Art Conventionally, there is a binding machine disclosed in Japanese Examined Patent Application Publication No. 2-29409 as a binding machine for binding an intersection of reinforcing bars with an iron wire.

That is, a pair of pins are arranged in a hole provided on the tip side of the rotating shaft so that the tip ends thereof face each other, and the pins are constantly pressed against each other by a pressing means such as a slider or a leaf spring.

[0004] In this publication, a pin is positioned inside a plurality of turns along a guide path in which an iron wire is guided in a loop, and the iron wire is twisted by rotating a rotating shaft.

[0005] At this time, the iron wire is twisted in contact with the tip of the pin, and the pin acts to separate the pin by a reaction force at the time of twisting, and the reaction force exceeds a predetermined value. When,
The twisted iron wire comes off the pin, and the iron wire is twisted.

[0006]

The problem to be solved by the present invention is as follows:
In the binding machine described in Japanese Patent No. 409, the iron wire is twisted, so that a pair of pins are arranged in a hole provided on the tip side of the rotating shaft so that the tip ends thereof face each other, and the pins are connected to the slider, It must be pressed by a pressing means such as a leaf spring, so that the number of parts increases and the pins are worn out due to long-term use, and the pressing means is hindered. Is troublesome.

Further, in the binding machine described in Japanese Patent Publication No. 2-29409, the size of the loop is limited to the size of the guide path for guiding the loop, and there is a problem that the size of the loop is more than necessary. .

[0008] An object of the present invention is to provide a binding machine which eliminates the above-mentioned conventional problems.

[0009]

In order to achieve the above object, a binding machine according to the present invention comprises: a main body ; a feeding means provided in the main body for feeding the binding member to a binding portion;
Return the binding member provided in the direction opposite to the binding portion
Return means, and the binding unit inwardly opened and closed by supporting the binding unit inwardly and supporting one end of the binding unit at the body, and opening and closing the distal end side of the binding unit by the sending unit around the binding unit. A binding member guide claw having a guide for guiding in a loop shape on the inner side, and provided so as to intersect the entrance side and the exit side of the loop-shaped binding member provided in the main body to the binding member guide claw. an inlet-side guide path and the outlet side guide path and rotating a by started rotating body tip with twisting the loop of the binding member to the binding unit, the binding
The binding member on the exit side of the member guide claw cooperates with the guide.
Guide to insert the guide into the exit guideway of the rotating body
To cancel the cooperation between the guide and the auxiliary guide.
Moving means for moving the auxiliary guide,
A holding member for holding the binding member protruding from the guideway on the exit side of the rolling element.
Holding means, wherein the guide is a recess, and the auxiliary guide
Is a lid member that covers the recess .

[0010]

[0011]

[0012]

In the binding machine constructed as described above, the binding member fed into the binding portion by the feeding means is provided inside the entrance side guideway provided in the rotating body and the binding member guide claws. The binding member forms a loop around the portion to be bound through the guide and the exit-side guide path provided in the rotating body. When the rotating body is rotated in this state, the loop-shaped binding member is twisted.

In the binding machine, the binding member fed to the binding portion by the feeding means is connected to an entrance-side guide path provided in the rotating body, a guide provided inside the binding member guide claw, and the rotating body. The binding member forms a loop around the portion to be bound through the provided exit-side guide path.

At this time, the binding member on the exit side of the binding member guide claw is inserted and guided into the exit side guide path of the rotating body in cooperation with the auxiliary guide and the guide, and is moved by the moving means before rotation of the rotating body. The auxiliary guide moves and the cooperation between the auxiliary guide and the guide is released.

Further, the binding member that has exited from the outlet-side guide path of the rotating body by the holding means is held, and the returning member returns the binding member in the direction opposite to the binding portion to adjust the size of the loop to an appropriate size.

When the rotating body is rotated in this state, the loop-shaped binding member is twisted.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic perspective view of a binding machine A. , Return means 3,
It is roughly composed of a binding member guide claw 4 supported by the main body 1 and a rotating body 6 provided in the main body 1 and having a front end facing the binding portion 5.

The feeding means 2 feeds a binding member 7 (for example, a vinylite coated with iron wire or mild steel wire) into the binding portion 5 provided in the main body 1. Become.

The roller 8 is fixed to a shaft 13 of a gear 12 meshing with an intermittent gear 11 fixed to a shaft 10 extending in the vertical direction. The roller 9 is rotatably supported by a lever 15 pivotally attached to the pin 14 and is constantly pressed toward the roller 8. The other end of the lever 15 is in contact with a cam 16 'fixed to the shaft 10.

The return means 3 is provided in the main body 1,
The binding member 7 (for example, an iron wire) is returned in a direction opposite to the binding portion 5 and includes a pair of rollers 16 and 17.

The roller 16 is fixed to a shaft 20 of a gear 19 meshing with an intermittent gear 18 fixed to a shaft 10 extending in the vertical direction. The roller 17 is rotatably supported by a lever 22 pivotally mounted on a pin 21 and is constantly pressed toward the roller 16.

The binding member guide claw 4 has a binding portion 5 inward, supports one end of the binding member 5 on the main body 1, opens and closes the distal end side, and sends the binding member 7 sent to the binding portion 5 by the feeding means 2. Is provided on the inner side thereof for guiding the loop around the bound portion 54.

One end of one of the claws 41 of the binding member guide claws 4 abuts on a cam 43 fixed to the shaft 10, and the binding member guide claws 4 are opened and closed.

The guide 23 forms a concave portion that is opened laterally.

As shown in FIGS. 1, 7 and 8, the rotating body 6 is formed in the main body 1 so that the entrance side and the exit side of the loop-shaped binding member 7 to the binding member guide claw 4 are three-dimensional. Entrance-side guideway 61 and exit-side guideway 62 provided so as to intersect
And twisting the loop-shaped binding member 7 with the front end facing the binding portion 5.

The rotating body 6 includes an intermittent gear 23 fixed to the shaft 10.
It is driven by a shaft 28 of a gear 27 meshing with a bevel gear 26 fixed to a shaft 25 of a gear 24 meshing with. 29 is the case. The case 29 is fixed, and the shaft 28 and the rotating body 6 in the case 29 rotate.

Reference numeral 30 denotes an auxiliary guide.
Guides the binding member 7 on the exit side of the binding member guide claw 4 to the guide 23.
The guide is inserted and guided into the exit side guide path 62 of the rotating body 6 in cooperation with.

Reference numeral 31 denotes a moving means. The moving means 31 moves the auxiliary guide 30 before the rotation of the rotating body 6 in order to cancel the cooperation between the guide 23 and the auxiliary guide 30. This is done by a lever 34 pivotally attached to a pin 33 which abuts a cam 32 fixed to the shaft 10, one end of the lever 34 rising to release the cooperation between the guide 23 and the auxiliary guide 30.

Reference numeral 35 denotes holding means. The holding means 35 holds the binding member 7 protruding from the outlet-side guide path 62 of the rotating body 6. (Not shown).

Reference numeral 50 denotes a storage unit for storing the binding member 7, and reference numeral 51 denotes a gear motor serving as a drive source for the feeding means 2, the return means 3, the binding member guide claws 4, the rotating body 6, and the like.
52 is a handle, and 53 is an operation switch of the binding machine A provided on the handle 52.

Next, the operation of the binding machine A will be described.
First, before operating the binding machine A, one end of the binding member 7 is cut by the case 29 by the previous operation and is at the position shown in FIG. 2 (see FIG. 2).

Next, the operation switch 53 is pressed, and the binding machine A
Is operated, one of the claws 41 of the binding member guide claws 4 is opened, the portion to be bound 54 enters the binding portion 5, and the binding member 7 (for example, an iron wire) is fed into the binding portion 5 by the feeding means 2. It is. The binding member 7 includes an entrance-side guide path 61 of the rotating body 6, a guide 23 of the binding member guide claw 4, and an exit-side guide path 62 of the rotating body 6.
To form a loop around the bound portion 54. At this time, the binding member 7 on the exit side of the binding member guide claw 4 is reliably inserted and guided into the exit side guide path 62 of the rotating body 6 while the auxiliary guide 30 and the guide 23 cooperate with each other. One end of the binding member 7 protruding from the exit side guide path 62 is held by holding means.
It is held by 35 (see FIG. 3).

Then, the lever 15 is moved by the cam 16 'as shown in FIG. 4, the roller 9 is separated from the roller 8, and the binding member 7 is returned by the return means 3 in the direction opposite to the binding portion 5. I try not to disturb.

Also, a shaft 34 'is formed by a cam 32 via a lever 34.
Rises, and the moving means 31 moves the guide before rotation of the rotating body 6.
Release cooperation between 23 and auxiliary guide 30.

That is, the driving of the roller 16 causes the binding member 7
With one end held by the holding means 35,
And the loop of the binding member 7 is reduced.

Next, the claws 41, 42 (claws) of the binding member
42 is opened by a shaft 34 'provided at one end of the lever 34), and the rotating body 6 rotates. When rotated, as shown in FIG. 5, the entrance side guideway 61 side of the binding member 7 is cut off, and FIG.
As shown in FIG. 9, the loop-shaped tying member 7 is twisted, and as shown in FIG.

In this embodiment, as shown in FIG. 9, the binding portion 54 is a plurality of rod-shaped members. However, in the present invention, the binding portion 54 is not limited to this. For example, as described in Japanese Patent Publication No. 2-29409, the binding portion may be bound at the intersection of the reinforcing bars, or may be bound so as to close the opening of the bag.

Although the feed means, the return means, and the driving source of the rotating body are constituted by one gear motor, they may be controlled by providing individual motors. In particular, if the feed means and return means can be controlled arbitrarily using a microcomputer, etc.,
The loop shape is not twisted more than necessary according to the size of the portion to be bound.

Further, as shown in FIG. 10, a binding guide 60 may be provided in front of the rotating body 6 so that an object to be bound is brought into contact with the binding guide 60 to position the object. The binding guide 60 is attached to the main body 1 by screws 61.

In this embodiment, the return means and the holding means are provided. However, the present invention is not necessarily required. The binding machine comprises a main body and the binding apparatus provided in the main body. Feeding means for feeding the member to the binding part; and the binding member fed to the binding part by the feeding means, having the binding part inward, supporting one end of the body on the main body, opening and closing the front end side, and Binding member guide claw having a guide for guiding a loop around the portion to be bound inside, and the entrance side and the exit side of the loop-shaped binding member provided in the main body to the binding member guide claw intersect with each other. If the rotating body having the inlet-side guide path and the outlet-side guide path provided so as to rotate and twist the loop-shaped binding member and the leading end faces the binding portion, As before, pins,
Without using the pressing means or the like, the binding member fed into the binding portion by the feeding means is bound by a guide provided inside the binding member guide claw and an entrance side guide path and an exit side guide path provided on the rotating body. Forms a loop around the bound portion, and in this state, the rotating body can be rotated to twist the loop-shaped binding member.

[0041]

[0042]

Binding machine of the present invention exhibits, body and, a feeding means for feeding the binding member disposed within the body to the bundling unit, the binding member provided in said main body to said bundling portion opposite direction A return unit that has the binding unit inward, supports one end of the binding unit in the main body, opens and closes a distal end side, and connects the binding member sent to the binding unit by the sending unit with the binding unit. A binding member guide claw having a guide for guiding around in a loop shape on the inside; and a crossing member provided in the main body, which is provided so as to intersect an entrance side and an exit side of the loop-shaped binding member to the binding member guide claw. A rotating body having an inlet-side guideway and an outlet-side guideway, twisting the loop-shaped binding member, and having a leading end facing the binding portion; and a binding unit on the exit side of the binding member guide claws. Cooperate the member with the guide An auxiliary guide that guides the rolling element into the exit-side guideway, a moving unit that moves the auxiliary guide to release cooperation between the guide and the auxiliary guide, and an auxiliary guide that exits from the exit-side guideway of the rotating body. In addition to the above-described effects, the binding member on the outlet side of the binding member guide claw can be reliably rotated by the cooperation of the auxiliary guide and the guide. After the guide, the auxiliary guide is moved by the moving means, and the cooperation between the auxiliary guide and the guide is released by the moving means. The binding member coming out of the outlet side guide path of the rotating body is held, and the binding member is returned to the binding portion in a direction opposite to the binding portion by return means, and is adjusted to an appropriate loop size regardless of the loop of the binding member guide claw. Of the rotating body The effect of such may be twisted loop-shaped binding member by rolling.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a binding machine according to an embodiment of the present invention.

FIG. 2 is a schematic explanatory diagram at the time of starting the binding machine shown in FIG. 1;

FIG. 3 is a schematic explanatory view of the binding machine shown in FIG. 1 when a binding member is fed.

FIG. 4 is a schematic explanatory view when the binding member of the binding machine shown in FIG. 1 is returned.

FIG. 5 is a schematic explanatory view of the binding machine shown in FIG. 1 at the time of twisting.

6 is a schematic explanatory view of the binding machine shown in FIG. 1 after completion of twisting.

FIG. 7 is an enlarged schematic perspective view of a rotating body of the binding machine shown in FIG. 1;

FIG. 8 is a diagram schematically showing the rotating body of the binding machine shown in FIG. 7 from the front.

FIG. 9 is a perspective view schematically showing a state in which the portions to be bound are bound by a binding member.

FIG. 10 is a schematic perspective view of a binding machine according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS A Bundling machine 1 Main body 2 Feeding means 3 Returning means 4 Bundling member guide claw 5 Bundling part 6 Rotating body 7 Bundling member 23 Guide 31 Moving means 35 Holding means 54 Bound part 61 Inlet-side guideway 62 Exit-side guideway

Claims (1)

(57) [Claims] A main body; a feeding means provided in the main body for feeding the binding member to a binding portion; a return means provided in the main body for returning the binding member in a direction opposite to the binding portion; The binding member sent to the binding portion by the feeding means is guided in a loop around the portion to be bound, while holding a portion inside and supporting one end of the binding member with the main body to open and close the distal end side. A binding member guide claw having a guide inside; an entrance guideway and an exit provided in the main body so as to intersect an entrance side and an exit side of the loop-shaped binding member to the binding member guide claw; A rotating body having a side guide path, twisting the loop-shaped binding member and twisting the leading end to the binding portion, and cooperating with the guide the binding member on the exit side of the binding member guide claw. Exit guideway of the rotating body An auxiliary guide that guides insertion into the guide, a moving unit that moves the auxiliary guide in order to release the cooperation between the guide and the auxiliary guide, and the binding member that exits from an exit-side guide path of the rotating body. Holding means , wherein the guide is a recess, and the auxiliary guide is the recess.
A binding machine, characterized in that the binding machine is a cover material for covering .