JP3087282U - Optical circuit breaker with bidirectional position detection function - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] A spring has a simple design, has to consider only the control of the turning direction, and has a bidirectional position detection function that can effectively reduce the required design time. An optical circuit breaker is provided. SOLUTION: The body includes a main body 1, a flag 2, a first spring 3, and a second spring 4, wherein the main body is for detecting light interruption, provided with light emitting means 11 and light receiving means 12, and emitting light. The concave tank 13 is formed between the means and the light receiving means, and the fixing members 14 and 15 are arranged on both sides of the concave tank. The flags 2 are formed so that the rotating shafts 21 and 22 extend and are formed at both front and rear ends. Having a blocking end 23 and a swinging end 24,
Among them, the blocking end is located in the concave tank, the first spring is connected to the rotating shaft, one side of the first spring is an active end, the other side is a fixed end, and the second spring is the other side of the flag on the other side. One side of the second spring is connected to the rotating shaft, and one side of the second spring is an active end abutting on the main body, and the other side is a fixed end fixed to the flag.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an optical circuit breaker having a bidirectional position detecting function, and more particularly to a paper detector used for a duplex printing printer, and to a device for performing detection on papers in different paper introduction directions. .

[0002]

[Prior art]

 As shown in FIGS. 1 and 2, a paper detector generally used in a printer is a one-way position detecting light circuit breaker, which has a main body 1a, a flag 2a, and a spring 3a, and detects light blocking. In the main body 1, a concave tank 13a is formed between the light emitting means 11a and the light receiving means 12a, and fixing members 14a and 15a are provided on both sides of the concave tank 13a. 21a and 22a are provided on the fixing members 14a and 15a, so that the flag 2a is now rotatable and a blocking end 23a for shielding light rays located in the concave tank 13a is provided in front of the flag 2a. A swing end 24a for detecting the position of the paper is provided at the bottom side of the flag 2a, and the blocking end 23a is in contact with the main body 1a, so that the flag 2a can be rotated only in the counterclockwise direction.

[0003] A spring 3a is provided on the rotating shaft 22a on one side of the flag 2a to provide reverse direction control torque to the flag 2a, and one side of the spring 3a is fixed to the locking groove 25a of the flag 2a, and Is in contact with the main body 1a. When the swinging end 24a of the flag 2a receives the force and is rotated in the counterclockwise direction, the spring 3a receives the force and is deformed to generate a torque that becomes a resistance, and the force of the flag 2a is released. After that, the flag 2a is restored by the resistance torque. However, since the flag 2a rotates only in the counterclockwise direction, it is not possible to satisfy the necessity of the forward / reverse clockwise rotation required for the duplex printing printer.

In order to solve the above-mentioned drawback and rotate the flag 2a clockwise and counterclockwise, the blocking end 23a of the flag 2a is prevented from abutting on the main body 1a, and as shown in FIGS. An optical circuit breaker having a function of detecting the position in both directions is provided. The both sides of the spring 3a are fixed to the latching member 16a of the main body 1a and the locking groove 25a of the flag 2a, respectively, so that the flag 2a can be rotated in both directions. However, in the case of such a method, the structure of the spring 3a is complicated, and a lot of time is required for the design, and when the torque required of the flag 2a to be turned changes or does not change. If so, the spring 3a must be redesigned, and different torques for turning the flag 2a in different directions due to the restriction that the single spring 3a provides the same bidirectional rotational torque. Cannot meet the needs that need to be

Therefore, as can be seen from the above description, in the case of the above-described conventional one-way position detecting optical circuit breaker or two-way position detecting optical circuit breaker, the inconvenience is apparent in actual use. It has disadvantages and needs to be improved.

[0006]

[Problems to be solved by the invention]

 The present invention aims to provide an optical circuit breaker having a bidirectional position detecting function that can simplify the spring design, only consider the control of the turning direction, and effectively reduce the required design time. Main purpose.

Another object of the present invention is to provide an optical circuit breaker having a two-way position detecting function in which, when a torque or a limit required by a certain turning flag changes, only a turning spring needs to be designed. For the next purpose.

Another object of the present invention is to provide an optical circuit breaker having a bidirectional position detecting function that can satisfy the limitation of different turning torque and torsion moment needs.

[0009]

In order to achieve the above object, the present invention includes a main body, a flag, a first spring, and a second spring, wherein the main body detects light interruption. Wherein a light emitting means and a light receiving means are provided, a concave tank is formed between the light emitting means and the light receiving means, and a fixing member is arranged on both sides of the concave tank, and the flag is provided on both the left and right sides. A rotating shaft connected to the fixing member is formed to extend and has a blocking end and a swinging end formed at both front and rear ends, wherein the blocking end is located in the concave tank, and the first spring is provided. The first spring is coupled to the rotating shaft on one side of the flag, and one side of the first spring is an active end that contacts the main body, and the other side is a fixed end that is fixed to the flag. A spring is connected to the other rotation axis on the other side of the flag. It is, becomes active end in which one side of the second spring is brought into contact with the body, and the other side is a fixed end fixed to the flag.

[0010]

[Embodiment of the invention]

 As shown in FIG. 5, the optical circuit breaker having a two-way position detecting function according to the present invention detects the paper introduction positions in different directions, including a main body 1, a flag 2, a first spring 3, and a second spring. The main body 1 includes a light emitting unit 11 and a light receiving unit 12 for receiving a light beam emitted from the light emitting unit 11. Further, a concave tank 13 for light transmission is formed between the light emitting means 11 and the light receiving means 12, and fixing members 14, 15 having convex lugs are arranged on both sides of the concave tank 13.

The rotation shafts 21 and 22 are formed on both sides of the flag 2 so as to extend therefrom. The rotation shafts 21 and 22 are respectively connected to convex-shaped fixing members 14 and 15 provided on the main body 1. 1 and rotatable clockwise and counterclockwise. Further, a blocking end 23 and a swinging end 24 are formed on the front and rear sides of the flag 2 respectively, and the blocking end 23 receives the flag 2. When it does not move and stops moving, it stops in the concave tank 13 and cuts off the light transmission path between the light emitting means 11 and the light receiving means 12 of the main body 1 so that the swinging end 24 moves the paper introduction position in a different direction. It is used for detection, and rotates the flag 2 clockwise or counterclockwise in conjunction.

As shown in FIG. 6, the first spring 3 is provided on the rotating shaft 21 having the flag 2, one side of the first spring 3 is in contact with the main body 1 to form an active end, and the other side is It is fixed to the locking groove 25 of the flag 2 to form a fixed end and provides the flag 2 with forward turning control torque.

As shown in FIG. 7, the second spring 4 is coupled to the other rotation shaft 22 of the flag 2, one side of the second spring 4 abuts on the main body 1 to form an active end, and The side is fixed to the locking groove 25 of the flag 2 to form a fixed end, and provides the flag 2 with reverse turning control torque.

FIGS. 8 to 10 are operation diagrams showing the case where the flag 2 of the present invention is rotated forward. When the swinging end 24 of the flag 2 receives the contact of the paper 5 supplied from the rear, the flag 2 is turned in a counterclockwise direction in conjunction with the flag 2, and the light receiving means 12 of the main body 1 emits the light beam generated by the light emitting means 11. Can be detected, and the entry of the paper 5 can be detected. At this time, the first spring 3 is deformed by receiving force, and a torque of resistance is generated. It produces no torque because 4 turns according to flag 2 but does not deform. When the paper 5 passes through the flag 2, the resistance torque generated by the first spring 3 causes the flag 2 to return to its original position.

FIGS. 11 to 13 are views showing the reverse rotation operation of the flag 2 according to the present invention. When the swinging end 24 of the flag 2 comes into contact with the paper 5 at the front end and receives a force. , The flag 2 is rotated counterclockwise, and the light receiving means 12 of the main body 1 receives the light beam emitted by the light emitting means 11 and detects that the paper 5 has been introduced. Although it turns, no deformation occurs, so that no torque is generated. On the other hand, the second spring 4 is deformed by receiving force to generate a resistance torque, and after the paper 5 passes through the flag 2, the flag 2 is returned to the original position by the resistance torque generated by the second spring 4. .

[0016]

[Effect of the invention]

 The optical circuit breaker with bidirectional position detection function of the present invention has the following advantages. (1) The position, rotation and torque of the flag at rest can be controlled by the two springs. (2) The two springs are independent of each other and generate torque only when they are rotated in a controlled rotation direction. (3) Different torques corresponding to different paper introduction directions can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a conventional optical circuit breaker having a one-way position detecting function.

FIG. 2 is an explanatory diagram showing a structure on the right side of a flag in FIG. 1;

FIG. 3 is a perspective view showing a conventional optical circuit breaker having a bidirectional position detecting function.

FIG. 4 is an explanatory diagram showing a structure on the right side of a flag in FIG. 3;

FIG. 5 is a perspective view showing the present invention.

FIG. 6 is an explanatory diagram showing the structure of the left side of the flag in the present invention.

FIG. 7 is an explanatory diagram showing the structure of the right side of the flag in the present invention.

FIG. 8 is an explanatory diagram showing a case where the flag of the present invention rotates forward.

FIG. 9 is an explanatory diagram showing a structure on the left side of a flag in FIG. 8;

FIG. 10 is an explanatory diagram showing a structure on the right side of a flag in FIG. 8;

FIG. 11 is an explanatory diagram showing a case where the flag of the present invention rotates in the reverse direction.

FIG. 12 is an explanatory diagram showing a structure on the left side of a flag in FIG. 11;

FIG. 13 is an explanatory diagram showing a structure on the right side of a flag in FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Flag 3 First spring 4 Second spring 5 Paper 11 Light emitting means 12 Light receiving means 13 Concave tank 14,15 Fixing member 16 Hook member 21,22 Rotating shaft 23 Blocking end 24 Swing end 25 Locking groove

Claims (5)

[Utility model registration claims] 1. A main body having a light emitting unit and a light receiving unit, a concave tank formed between the light emitting unit and the light receiving unit, and a light blocking state in which fixing members are arranged on both sides of the concave tank. A flag provided on the fixed member, having a rotating shaft extending on both left and right sides, and having a blocking end and a swinging end provided on both front and rear sides, wherein the blocking end is located in the concave tank. A first spring provided on a rotation shaft on one side of the flag, one side serving as an active end abutting on the main body, and the other side serving as a fixed end fixed to the flag, A second spring provided on the other rotating shaft on the other side, the one end serving as an active end contacting the main body, and the other side serving as a fixed end fixed to the flag. An optical circuit breaker having a bidirectional position detection function. 2. The optical circuit breaker according to claim 1, wherein the fixing member has a convex shape. 3. The optical circuit breaker having a bidirectional position detecting function according to claim 1, wherein the flag has a locking groove for locking the first spring and the second spring. 4. The optical circuit breaker having a bidirectional position detecting function according to claim 1, wherein the first spring is a spring that provides a forward rotation direction control torque to the flag. 5. The optical circuit breaker according to claim 1, wherein the second spring is a spring that provides a reverse control torque to the flag.