JP2012130276A - Swing type rotary sliding cam unlocking system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems of a method for nipping and lifting a stopper, such as a problem that a lifting lever is curved or hooked to insufficiently exhibit the unlocking function of a trapping cage, and a problem that precision machining is required due to the generation of strains on the attaching welding of the lever or the like.SOLUTION: Since the swing type rotary sliding cam unlocking system uses a method for lifting a stopper by the rotation of a sliding cam instead of a lever, the cooperation of an arm with the stopper to release the crank is smoothened not to require a precision machining. Thus, the cost can advantageously be reduced, and the swinging width necessary for the unlocking of the arm can be adjusted, when a trapping cage is set to a slope.

Description

  The present invention is a device for dropping a pest for trapping pests. The stopper for stopping the crank attracted by the force of the spring is jumped up by a sliding cam attached to the rotating body, and the crank that is tensioned by the spring is released. The present invention relates to an unlocking system for dropping a door. It should be noted that the stopper, crank, pin, and blade falling are the same as the application number (Japanese Patent Application No. 2010-279617).

In a device that has been commercialized so far and the lever attached to the rotating body at a right angle jumps up the stopper, the lever should be sandwiched from the top and bottom of the shaft center on the left and right. The arm was extended from the rotating body and drooped from the rotating body, and when the prey moved in the forward and backward direction, the stopper was flipped up by the forward and reverse rotation to release the crank. The distance between the stopper and the movable angle cannot be increased, and the lever that extends from the rotating body needs to be lengthened.Therefore, if the arm's rotation is swung close to 90 degrees with the force of prey, the lever will bend and catch. There was a situation where the function could not be demonstrated.
Since the lever has a long positioning and angle, there is a problem that the manufacturing cost is increased because precision is required due to distortion caused by welding.

As a measure to improve this, the cam with a curved surface greatly down to the left and right is made symmetrical to make the surface smooth and the adjustment bolt is made symmetrical to the stopper, and the bolt ends slide with the rotation of the sliding cam and the stopper competes. Make it go up. As a result, it is possible to push the stopper upward in both cases by forward and reverse rotation of the sliding cam. Even if the rotation reaches 90 degrees, the cam is below the stopper and is not bent or caught.

  The problem to be solved is that the lever is bent or caught when the arm moves greatly, and the welding angle of the lever is required to be precise at the time of manufacture.

  In the present invention, the left and right R-shaped sliding cams are attached to the rotating body, and the adjusting screw protruding under the stopper is lifted by the rotation of the sliding cam, so the arm swings greatly and the sliding cam rotates nearly 90 degrees. There are no obstacles. Since the stopper is adjusted with the adjustment screw, the mounting of the sliding cam to the rotating shaft does not require precision, so the manufacturing cost is reduced and the amplitude of the arm can be adjusted by installing the tilt on the slope. -The most important feature is that the linkage between the mud and the stopper is smooth and the unlocking of the pests is surely unlocked.

  In the swing type sliding cam unlocking system of the present invention, the stopper that stops the crank attracted by the spring pushes up the stopper while the sliding cam with the Rs on both ends rotates, causing problems such as bending and catching. Therefore, the tension release of the crank is smooth, and the gap between the stopper and the sliding cam can be adjusted with a bolt, so that there is an advantage that the cost can be reduced because a high degree of precision is not required at the time of manufacture. By providing the adjustment bolt, even if the trap orientation is tilted, the arm amplitude can be evenly adjusted even if the arm hanging position does not come to the center of the orientation. .

FIG. 1 is an explanatory view showing a method of implementing the entire catching-originated rotary sliding cam unlocking system. Example 1 FIG. 2 is an explanatory view showing a method for carrying out the stop state of the stopper. (Example 2) FIG. 3 is an explanatory view showing an implementation method in a state in which the stopper is raised. (Example 3)

As shown in FIG. 3, when the prey contacts the tacking thread 8 or the food bar 9 and moves the arm 7 in the front-rear direction, the sliding cam 4 also rotates and the adjusting bolt 10 of the stopper 3 slides on the surface of the sliding cam. This is an unlocking device in which the stopper 6 is lifted, the crank 6 attracted by the spring 5 is released, the pin 11 on which the door is placed is pulled out, and the door is dropped.
When the trap is installed on the slope, the lower end of the arm is displaced from the center of the arm, so there was a tendency for the amplitude distance necessary for unlocking to be biased. A smooth unlocking device was completed.

  FIG. 1 is a bird's-eye view of an embodiment of the apparatus of the present invention, just before a stopper is lifted by a rotation of a sliding cam, a crank is released, and a door falls.

  The embodiment of FIG. 2 is a cross-sectional view in which the arm and the sliding cam are stationary.

FIG. 3 is a cross-sectional view in which the arm is moved to the prey and the stopper is lifted in the third embodiment of the apparatus of the present invention.

  The lock mechanism that moves the arm back and forth unlocks the link between the sliding cam and the stopper, which reduces the manufacturing cost and adjusts the arm amplitude when the arm is installed on the slope. As a system to ensure the quality, it is possible to provide a pest capture unlocking system with a high degree of perfection.

1 Rotating body 2 Stopper-Rotating shaft 3 Stopper
4 Sliding cam 5 Spring 6 Crank 7 Arm 8 Trapping thread 9 Feeding rod 10 Preparation screw 11 Pin

Claims (1)

  Captive lock unlocking device that lifts the stopper with a sliding cam synchronized with the rotating body of the arm swing