JPS5937859Y2 - remote control device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to improvements in remote control devices for engines for small watercraft such as fishing boats, drive units for electric vehicles, and other various industrial equipment.

More specifically, the present invention relates mainly to improvements in the locking mechanism of remote control devices.

In conventional devices of this kind, there have been several types of mechanisms for operating the remote control device and locking it in the operating state, but each has its own merits and demerits, and none of them have been fully satisfactory.

In other words, the structure is complicated and expensive, the lock can be unintentionally released by the slightest external force such as vibration, the locking position is gradual and the lock position cannot be changed minutely, the lock is easily broken, etc. There was a drawback.

The main purpose of the present invention is to provide a remote control device that overcomes the above-mentioned drawbacks of the prior art.

Further objects will become apparent from the description provided below.

An embodiment of the present invention will be described with reference to the drawings. 1 is a gear, 2 is a rack that meshes with the gear, 3 is a shaft connected to the rack 2 (including a flexible shaft such as an inner cable of a control cable), 4 is a casing.

The gear 1 is pivotally supported by a shaft 5 on a casing 4, and the rack 2 is slidable while being guided by the casing. 2 operates in the CtD direction,
The shaft 3 is operated in the same direction, and a driven device (not shown) connected to an end (not shown) of the shaft is remotely controlled 5.

A through hole 7 provided with an internal thread 8 is provided at an appropriate position in the casing 4, and a sphere 10 that can be inserted into a notch 9 provided in the rack 2 and a coil spring 11 are inserted into the through hole. Then, a substantially tubular locking member 12 located outside the sphere or outside the sphere and the coil spring is inserted, and the coil spring has a recess in the lock shaft 13 provided with a male screw 16 that can be screwed into the female screw 8. One end is located within 14,
The other end of the coil spring presses against the sphere 10.

One end of the lock member 12 is connected to the end surface 13' of the lock shaft 13.
The other end is adapted to be pressed against the side surface 2b of the rack 2 where the teeth 2a are not provided.

15 is a lock lever for rotating the lock shaft 13;

In this embodiment, the notch 9 is formed so that when the operating lever 6 is at the neutral position N, the sphere 10 can be retracted by the repulsive force of the coil spring 11, and thereby the operating lever 6 is lightly stopped at the N position. There is.

To explain the function and effect of the present invention, the operating lever 6 is
When rotated in direction B, gear 1 rotates and rack 2 moves in direction C.
, the shaft 3 slides in the casing 4 in the direction D, and the shaft 3 also moves in the direction C,
Operates in direction D.

In this case, the sphere 10 escapes from the notch 9 and rolls or slides on the side surface 2b of the chic 2.

When the lock lever 15 is slightly rotated in a position where the driven device is appropriately controlled by operating the operating lever 6,
By screwing the female thread 8 and the male thread 16, the lock shaft 13 is
screw into the lock member 1 at the end face 13' of the lock shaft.
2 is pushed in the E direction and presses the side surface 2b of the rack 2, and the rack 2 is stopped at that position to complete the locking.

When the locking is completed, the coil spring 11 is sufficiently compressed, and its strong repulsive force prevents the lock shaft 13 from rotating unexpectedly even if an external force such as vibration is applied. cannot be solved.

In addition, since the pressure contact between the lock member 12 and the rack 2 is completely released by a slight reverse rotation of the lock lever 15, the lock can be released easily and reliably.

Furthermore, since the female thread 8 and the male thread 16 may have a narrow pitch, there is an effect that the lock will not be released inadvertently.

Furthermore, even if the contact surface of the lock member 12 with the side surface 2b of the rack 2 or the contact surface with the end surface 13' of the lock shaft is worn out, the coil spring 11 has sufficient margin in the direction of expansion and contraction. Therefore, by further rotation of the lock lever 150, the lock is completed, and no trouble will occur for a long period of time.

In this embodiment, a through hole 7 provided with a female screw 8 is provided.
If the lengths of the locking members 12 are different, there is an advantage that sufficient locking can be achieved simply by inserting locking members 12 of different lengths into the through hole 7.

In some cases, the lock member 12 and lock shaft 13
Of course, it may also be a combination of the two.

As mentioned above, the present invention has an extremely simple structure, and utilizes slight threading in and out of the lock shaft 13, which is a member that compresses the coil spring 11 with the sphere 10, in the E and F directions to lock the lock. This is a remote control device having a locking mechanism, which is capable of locking the rack 2 in slightly different positions, and has no parts that can fail.

[Brief explanation of the drawing]

The drawing is a partially cutaway front view of an embodiment of the present invention. 1: Gear, 2 Neck, 2 Side of Neck, 3: Shaft, 4: Casing, 5: Axis, 6: Operating lever, 7:
Through hole, 8: Female thread, 9: Notch, 10: Sphere, 11:
Coil spring, 12: Lock member, 13: Lock shaft, 13
': End face of lock shaft, 14: Recess, 15: Lock lever
16: Male thread.

Claims (1)

[Scope of utility model registration request] 1. A remote control device having a gear rotatably driven by an operating lever and pivotally supported by a casing, a rack that meshes with the gear and is guided and driven by the casing, and a shaft connected to the rack. a through hole with a female thread provided on the inner surface at a position; a sphere that can fit into a notch provided in the rack within the through hole; a coil spring that presses the sphere in the direction of the notch; A substantially tubular locking member located on the outside of the sphere is inserted into the locking shaft provided with a male thread that can be screwed into the female thread so that the coil spring can be compressed.
and a remote control device configured such that the locking member can be brought into pressure contact with a side surface of the rack. 2. The remote control device according to claim 1, wherein the lock member is integrally provided with the lock shaft.