JPS6013205Y2 - Main controller locking device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a locking mechanism of a main controller used in an electric vehicle.

Conventionally, in main controllers, each camshaft has been usually provided with a locking mechanism, such as a pull-out camshaft locking the drive camshaft and a key locking the braking handle.

In addition, as a special case, there are some systems in which the two camshafts can be simultaneously locked or unlocked by operating a single key, but this involves an extremely complex mechanism.

This is because, when unlocking the above two axes by rotating one key, if one of the camshafts is unlocked when the key is rotated halfway, and when the key is rotated further, the remaining camshafts will be unlocked. This is because if the structure is such that the shaft can be unlocked, an extremely dangerous situation will occur.

For example, if you rotate the camshaft with only the camshaft unlocked, the electric car will start moving, and even if you try to brake by rotating the remaining brake camshafts, the brakes will remain locked. This results in a situation where the brakes are not applied.

In view of the above, the present invention has an extremely simple structure that allows the two camshafts to be locked and unlocked at the same time.
This is an attempt to eliminate the drawbacks of the conventional method.

Hereinafter, the present invention will be explained with reference to the illustrated embodiment. Reference numerals 1 and 2 are a lever shaft and a brake shaft arranged coaxially, 3 and 4 are lock cams arranged close to each other and facing each other at the ends of these circular shafts. Cut grooves 5 and 6 are provided at opposing positions, respectively.

7 is a key guide provided on the mounting base 8; 9 is a key shaft rotated by a key 10 inserted into the key guide 7; and 11 is a key cam provided at an intermediate position of the key shaft.

Reference numeral 12 denotes a lock pin that is slidably inserted into a hole provided in the base 13, and the hemispherical portion of the rear end is connected to the key cam 11.
The lock pin 12 is always pressed against the key cam 11 by a spring 14 that surrounds the lock pin 12 and is stretched between the large diameter portion of the pin and the step of the hole in the base 13. ing.

Also, the tip of this lock pin 12 is connected to the double-ended link cam 3.
, 4 so that the flat head 1 can be fitted into the grooves 5 and 6 of 4 at the same time.
It is configured as 5.

Note that 16 indicates a guide pin that guides the lock pin 12 to move in a straight line.

Therefore, as shown in FIG. 2, when the key 10 is in the locked position and the key cam 11 is in the shallow illustrated position,
The lock pin 12 moves to the right against the spring 14 with a flat head 15.
are simultaneously inserted into the grooves 5 and 6 of the double-ended lock cams 3 and 4 to lock the lever shaft 1 and the brake shaft 2 at the same time.

In this state, if the key 10 is now rotated 90'' clockwise, the key cam 11 will engage with the rear end of the lock pin 12 in the deep unlock position, so the lock pin 12 will engage the spring 14. The flat head 15 is energized and moved to the left, and the flat head 15 is simultaneously released from the grooves 5 and 6 of the double-ended cams 3 and 4, and the lever shaft 1 and the brake shaft 2 are simultaneously released and become operable.

As described above, according to the present invention, the lever shaft and the brake shaft can be locked and unlocked at the same time with an extremely simple structure, which has the effect of improving safety.

[Brief explanation of the drawing]

All of the figures show embodiments of the present invention.
The figure is a front view of the locking device, and FIG. 2 is a plan view thereof. 1... Reverse shaft, 2... Brake shaft, 3. 4...Lock cam, 5,6...
- Cut groove, 11...Key cam, 12...
lock pin.

Claims (1)

[Scope of utility model registration request] A lever shaft and a brake shaft are arranged on the same axis, two lock cams are arranged opposite to each other on the ends of these shafts, and one end of each of these lock cams is inserted into the grooves carved at the periphery of the lock cams at the same time. A single lock pin that is slidably supported in opposition and is elastically biased by a spring in the direction of separation from each of the grooves, and a key cam that engages with the other end of the lock pin to move it forward and backward. A locking device for a master controller, characterized by comprising: