JPS6310707Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seat belt meandering correction device.

The purpose of this invention is to provide a device that can easily correct the meandering of a seatbelt that circulates with a small tension because it tends to meander.

Conventionally, as a means of continuously baking confectionery, etc., an endless stainless steel belt has been used to circulate and place confectionery dough on it and bake it, but this stainless steel endless belt has various drawbacks. In recent years, as an alternative to this, seat belts made of glass fiber sheets treated with Teflon and having excellent heat resistance and release properties have been developed and put into practical use.

However, if a rotating drum was used to drive the seatbelt as a means of circulating the seatbelt, the tension would be extremely large, resulting in drawbacks such as the seatbelt slipping. As shown in the registration application, they developed a retracting drive system and created a device that rotates the seatbelt with a very small tension.

However, when the seatbelt is rotated with a small tension, the seatbelt tends to meander considerably, and a device to correct this meandering becomes necessary.

Most of the conventional meandering correction devices on the market are roll type, which causes large bending fatigue and significantly shortens the life of the seatbelt.Additionally, new tension is added, so it is not suitable for the purpose of making the tension circulate in a small amount. This is inconvenient because they do not match, and the inventor of the present invention has studied to solve this problem and has arrived at the present invention.

That is, the device corrects the meandering of a seatbelt, and is provided with a frame that rotates at regular intervals around the direction of travel of the seatbelt, and can be moved by sliding on guide rods on both sides of the frame. A clamping plate is attached, and when the meandering detection switch detects meandering of the seatbelt, the frame body is rotated in a direction to correct the meandering, and at the same time, the clamping plate clamps the seatbelt. The meandering of the seatbelt is corrected while moving the clamping plate along a guide rod, and after the clamping plate releases the seatbelt, it is pushed back to its original position by a return cylinder. They came up with the idea of a seatbelt meandering correction device.

The present invention will be described by way of an example with reference to the drawings.

FIG. 1 is a schematic plan view of the device of the present invention.

As shown in this figure, there is a frame 1 installed along the seat belt a, and the frame 1 has a rotation center 2 located approximately in the center of the seat belt a. It is designed to rotate at a constant interval with respect to the direction of movement A.

That is, as shown in Fig. 1, a rotation cylinder 3 is connected to the rear end of the frame 1, and the expansion and contraction of this rotation cylinder 3 causes the frame 1 to rotate left and right around the rotation center 2. It tilts.

A sheet sandwiching body 5 that can freely slide along guide rods 4 provided on both sides of the frame 1 is suspended horizontally between both guide rods 4.

FIG. 2 is a front view of this sheet sandwiching body 5.

This seat clamping body 5 is provided with clamping plates 6 above and below the seatbelt a for clamping the seatbelt a, and as the seat clamping cylinder 7 expands and contracts vertically, the lower clamping plate 6 moves up and down. It is designed to clamp and release the seat belt a.

A rubber plate 6' is bonded to the inner surface of the clamping plate 6 to prevent slipping.

FIG. 3 is a schematic plan view showing how the device of the present invention operates to correct meandering.

Meandering detection switches 8 and 9 are provided on both sides of the seatbelt a. For example, as shown in Fig. 3, if the seatbelt a comes into contact with the detection switch 9, the seatbelt a is too far to the left with respect to the traveling direction A. When it is detected that the rotating cylinder 3 is moving, the rotation cylinder 3 is extended by an electric signal, and the frame body 1 is tilted to the right with respect to the traveling direction (the same applies hereinafter) as shown in FIG. At the same time, the seat clamping cylinder 7 extends its rod and the seatbelt a is attached to the clamping plate 6.
It is clamped in place. Since the seat belt a is advanced by a separate drive device, the entire seat clamp 5 slides along the guide rod 4 tilted to the right while holding the seat belt a. Due to this diagonal movement, the seat belt a is guided to the right, and the excessively left-sided position of the seat belt a is corrected. And the sheet sandwiching body 5 is the frame body 1
When the rear end is reached, the seat clamp cylinder 7 operates in reverse to open the clamp plate 6 and release the seat belt a, and then the rod of the return cylinder 10 extends to return the entire seat clamp body 5 to its original position. It pushes it back. The rod of the return cylinder 10 projects through a long hole 11 provided at the rear end of the frame 1.

Furthermore, when the seat belt a meanders to the right and the detection switch 8 detects this, the rotation cylinder 3 shortens its rod and tilts the frame 1 to the left, and the same goes for the following. Needless to say, corrections will be made in due course.

The present invention has the above-mentioned configuration, and since the clamping plate slides diagonally in the correction direction only by the moving force of the seat belt, almost no new tension is applied to the seat belt, and the seat belt is This method is completely different from the conventional method in which the seat belt is simply pinched and pulled from both sides and corrected by bending it with rolls, etc., so it does not cause any bending fatigue such as squeezing the seat belt, and it is very efficient and reliably prevents the seat belt from meandering. can be corrected,
This is extremely effective in correcting the meandering of traveling seatbelts that tend to meander due to their small tension.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view of the device of the present invention. FIG. 2 is a front view of the sheet sandwiching body in the device of the present invention. FIG. 3 is a schematic plan view showing how the device of the present invention operates to correct meandering. a... Seat belt, 1... Frame, 2... Center of rotation of 1, 3... Rotating cylinder, 4... Guide rod, 5... Seat clamping body, 6... Clamping plate of 5, 6 '...Rubber plate, 7... Sheet clamping cylinder, 8, 9... Meandering detection switch, 10... Return cylinder, 11... Long hole.

Claims (1)

[Scope of utility model registration request] A device for correcting meandering of a seat belt,
A frame body that rotates at regular intervals around the direction of travel of the seat belt is provided, and clamping plates that can slide and move are attached to guide rods on both sides of the frame body, and a meandering detection switch is used to detect the movement of the seat belt. When meandering is detected, the frame body is rotated in a direction to correct the meandering, and at the same time, the seat belt is clamped by the clamp plate, and the seat belt is moved along the guide rod while the frame body is rotated in a direction to correct the meandering. A seatbelt meandering correcting device, characterized in that the meandering of the belt is corrected and the clamping plate releases the seatbelt and is then pushed back to its original position by a return cylinder.