JPH0111894Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a door locking device for a freight vehicle that locks the rear door, side door, etc. of a loading platform, and in particular, locks the door of a loading platform by retaining the handle in the handle holder. Regarding equipment.

[Prior art and problems] This type of conventional locking device operates the handle with the handle inserted into the handle receiver, and locks with a locking mechanism provided on the door surface side to open the opening of the handle receiver. Since the door was configured to close, it was troublesome to operate, and the locking mechanism was installed on the front surface of the door, resulting in a complex structure and poor appearance.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door lock device for a freight vehicle that has a relatively simple structure, is easy to operate, and is reliable in operation.

[Means for Solving the Problems] The present invention provides a door lock device that locks the door of a loading platform by retaining a handle in a handle holder.
A lock lever for locking the handle is provided on the front side of the door corresponding to the handle receiver, and one end of the handle is pivotally connected to be rotatable in the front and back direction, and a lock lever for locking the handle is slidably penetrated through the door corresponding to the lock lever for locking the handle. a lock lever operating member provided on the back side of the door and locking with the rear end of the lock lever operating member when the restraining lock lever is in a pushed state; It consists of a stopper that locks the door, and an actuator for the stopper provided on the back side of the door.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the attached drawings showing the case of a rear door.

As shown in FIG. 1, the rear door 2 of the loading platform 1 is configured to be locked by engagement between the upper and lower cams 5 of a locking rod 4 pivotally connected to the rear door 2 and a cam receiver 6 provided on the loading platform 1. The locked handle 7 is inserted into a handle receiver 8 provided on the surface of the rear door 2.

A locking unit 9 is attached through the opening 2a to a location corresponding to the handle receiver 8 on the back surface of the first-opening side rear door 2.

The locking unit 9 includes a base 10 provided on the surface of the rear door 2, a push rod 11 which is a lock lever operating member, a push rod pressing spring 12, a mandrel 13 which is a stopper of the push rod 11, a guide 14 for the mandrel 13, a connecting plate 15, It is composed of a solenoid 16, a spring 17 for pressing the mandrel, and a cover 18.

A push rod 11 extends horizontally and slidably through the base 10.

A guide 19 for the push rod 11 is provided in the through hole of the base 10.

11a is a flange for suppressing the push rod, and a spring 12 for pressing the push rod is installed behind it.
is intervening.

A mandrel 13 is attached to a push rod 11 on the base 10.
A guide 14 is provided for sliding in a direction orthogonal to the push rod 11.
It is formed so that it can be engaged with the rear end of the push rod 11 to fix the push rod 11 in the protruding state.

An operating rod 16a of a solenoid 16, which is an operating tool provided on the base 10, is connected to the base end of the mandrel 13 via a connecting plate 15.

The mandrel 13 is provided with a spring 17 that constantly presses the mandrel 13 forward.

The upper end of a handle retaining lock lever 20 is pivotally attached 21 to the upper part of the handle receiver 8 on the surface of the rear door 2, and the lock lever 20 is vertically provided so as to be freely rotatable in the front and rear directions. The lock lever 20 is provided with a projection 20a for restraining the lock handle 7.

The lock lever 20 is loosely inserted into a hole 22 provided in the handle receiver 8.

The solenoid 16 is actuated by appropriate means such as operation of a manual switch (not shown) provided at a suitable location on the truck or control using radio waves, ultrasonic waves, or the like.

When the rear door 2 is closed and the lock rod handle 7 is inserted into the handle receiver 8, the push rod 11 is projected onto the door surface via the guide 19 due to the pressing force of the pressing spring 12, as shown in FIG. Push the lock lever 20 forward. The protrusion 20a of the lock lever 20 narrows the socket 8a of the handle receiver 8 and holds the lock handle 7 therein.

When the solenoid 16 is de-energized in this state, the mandrel 13 moves toward the guide 1 due to the pressing force of the spring 17.
4, its tip protrudes and engages with the rear end of the push rod 11, and the push rod 11
to be fixed.

Therefore, the lock lever 20 fixes the lock handle 7 in a restrained state and enters the locked state.

Next, when the solenoid 16 is energized, the mandrel 13 moves backward against the force of the pressing spring 17.
The engagement between the tip and the base of the push rod 11 is released,
The lock is released.

Next, when the lower end of the lock lever 20 is pressed by hand, the lock lever 20 resists the force of the pressing spring 12, retreats the push rod 11, and rotates rearward.

Therefore, the socket 8a of the handle receiver 8 is opened, and the handle 7 can be removed from the handle receiver 8.

The embodiment of the present invention is as described above, and can exhibit the following effects.

That is, first, the shaft 13 operated by the solenoid 16 protrudes from the door surface and presses the lock lever 20 with the push rod 11.
Since the handle 7 is fixed in place, the handle 7 is firmly held in the handle receiver 8 via the lock lever 20, resulting in a lock device. Furthermore, there is no possibility that the lock will be released inadvertently due to vibrations of the vehicle, etc.

Secondly, since the locking unit 9 is mounted on the back side of the door 2, there is no need for a locking mechanism for the door, an interlocking mechanism with a receiver, etc., and the device is simple in structure and inexpensive, and has a good appearance.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, the actuator for the stopper is not limited to a solenoid, and any actuating means may be selected as appropriate.

[Effects of the invention] The present invention provides a door lock device that locks the door of a loading platform by retaining the handle in the handle holder.
A lock lever for restraining the handle is provided on the surface side of the door corresponding to the handle receiver, and one end of the handle is pivotally connected so as to be rotatable in the front-rear direction, and a lock lever for restraining the handle is slidably penetrated through the door corresponding to the lock lever for restraining the handle. a lock lever operating member provided on the back side of the door and locking with the rear end of the lock lever operating member when the restraining lock lever is in a pushed state; To provide a door lock device for a truck, which is composed of a stopper for locking the door and an actuator for the stopper provided on the back side of the door, has a relatively simple structure, is easy to operate, and is reliable in operation.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of a truck, FIGS. 2 and 3 are sectional views of the device of the present invention, and FIGS. 4 and 5 are cross-sectional plan views of the same. 2... Rear door (door), 7... Locked handle (handle), 8... Handle holder, 1
1...Push rod (lock lever operating member),
12... Spring, 13... Stopper, 1
6... Solenoid (stopper operating device), 20
... Lock lever for detention.

Claims (1)

[Scope of utility model registration request] In a door lock device for locking a cargo platform door by retaining a handle in a handle receiver, the door lock device is provided on the surface side of the door corresponding to the handle receiver, and one end is pivotally attached to the handle so as to be rotatable in the longitudinal direction. a lock lever, slidably extending through the door in correspondence with the restraining lock lever;
A lock lever operating member that pushes and biases the restraining lock lever via a spring, and a stopper provided on the back side of the door that engages and locks the rear end of the lock lever operating member when the restraining lock lever is pushed. and a stopper actuator provided on the back side of the door.