JPS6142344Y2 - - Google Patents

Description

[Detailed description of the invention] This invention utilizes a single wound spring for the string brake and for removing the string slack.

Conventional tying machines use separate springs for the string brake and the string slack remover, which increases the number of parts and assembly man-hours, resulting in high costs.

The present invention is an attempt to solve the above-mentioned drawbacks all at once.The movable piece of the string brake is pressed against the receiver by a winding spring, one end of the winding spring is extended toward the string pulling side, and the tip It is characterized in that a loop is formed in the strap to take up slack in the cord.

The embodiment shown in the drawings will be explained below.1
is a string case attached to the binding machine, and a string brake 6 consisting of a receiving plate 4 and a movable plate 5 is attached to one side of a side plate 3 having a string passing hole 2. The rib part has recesses 4a, 4a, and the movable plate 5 has a cutout part 5a in one bent part, and the side plate 3 is provided in the mounting hole 4b of the receiving plate 4 and the mounting hole 5b of the movable plate 5. A pin 7 is inserted through the hole.

A wound spring 8 around which the pin 7 is wound
Fits one end into the notch 9a of the spring receiver 9,
The other end extends from the notch 5a to the needle side of the binding machine, and a loop 10 is formed at the tip to serve as a string slack remover 11, and a cross groove 12 provided at the top of the spring receiver 9 Since it is engaged with the receiving pin 13 fitted into the tip of the pin 7, the string brake 6 can be adjusted by rotating the spring receiver 9.
The braking force can be adjusted.

Next, to explain the operation, when the needle is in the waiting position, the string slack remover 11 returns as shown by the chain line in FIG. 1 and pulls the string 14 upward from the string guide 15 to take up the slack. In this state, the winding spring 8 also rotates back and the pressing force against the movable plate 5 becomes small.

When the amount of rods collected by the tying machine reaches a predetermined amount, the clutch engages once, the needle is activated, and the string 14 begins to be pulled out, the string slack remover 11 rotates downward.

At this time, the braking force exerted by the winding spring 8 is weakening, so it is gradually pulled out, and as the needle continues to draw out the string, the string slack is taken up and the string is in a position along the linear string 14, as shown by the solid line in FIG. Become.

In the present invention, the movable piece of the string brake is pressed against the receiver with a wound spring, and one end of the wound spring is extended to the string pulling side, and a loop is formed at the tip to take up the slack of the string. The spring for the string brake and the spring for taking up the slack of the string, which were configured in the previous example, can be configured with a single spring, thereby reducing the number of parts and the number of assembly steps, and reducing costs.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
FIG. 1 is a perspective view of the string supply device, FIG. 2 is a sectional view of the main part, and FIG. 3 is an improved exploded perspective view. 1... String case, 4... Receiving plate, 5... Movable plate,
6... String brake, 8... Winding spring, 11...
...Remove slack in strings.

Claims (1)

[Scope of utility model registration request] A binding machine characterized in that a movable piece of a string brake is pressed against a receiver by a winding spring, one end of the winding spring is extended to the string pulling side, and a loop is formed at the tip to take up slack in the string. A string supply device.