JPS5836760Y2 - Automatic locking device that doubles as a door handle in a plastic greenhouse - Google Patents

Description

[Detailed description of the invention] This invention relates to a greenhouse in which the door handle also functions as an automatic lock, and a U-shaped support 2 with a cutout groove 1 formed on the left and right sides is attached to the door side pipe 3. The lock rod 4 that also serves as a handle is fitted into the cutout groove 1, and the ring portions of the lock rod 4, which also serves as a handle, are formed on the left and right sides with rings whose tips are curved outwardly. A receiving plate 6 provided with a mounting portion 5 is integrally tightened with bolts 7 and nuts 8 on the outside of the left and right pieces.

In the figure, 9 is the pillar pipe of the greenhouse, 10 is the pipe stop protrusion provided on the inside of both pieces of the support 2, and 11 is the receiving plate 6.
A contact recess 12 at the shaft opening of the lock rod 4 which also serves as a handle is formed in the door.

The present invention has the above-mentioned structure, but to explain its operation in detail with reference to the diagram, when the door is closed, the two wheels of the locking rod 4 that also serves as a handle grip and lock the column pipe 9, as shown in Figure 4. However, when opening the door, by grasping the loop of the inner or outer locking rod 4 which also serves as a handle and rotating it upward, the locking rod 4 can be disengaged from the column pipe 9 and released either from the inside or the outside.

Next, when closing the door 12, without grasping the lock lever 4 that also serves as a handle, simply push or pull the door 12 forcefully, and the ring at the end of the lock lever 4 that also serves as a handle collides with the pillar pipe 9. Because the tip of the lock rod 4 is curved outward and the lock rod 4 that also serves as a handle is tilted upward by the mounting portion 5 of the receiving plate 6, the lock rod 4 that also serves as a handle rotates upward, and the column pipe 9 is rotated upward. As soon as it passes, it goes down, so the inside of the rear ring hits the pillar pipe 9, preventing the door from advancing, and the pillar pipe 9 is held between the front and rear rings, resulting in a locked state.

As mentioned above, the present invention is a useful device because the rotary handle of the door also functions as an automatic lock, and there is no need to provide a separate key.

[Brief explanation of the drawing]

Figure 1 is a front view of a greenhouse equipped with the device of the present invention, Figure 2 is a plan view of the main parts showing the operation, Figure 3 is a front view of the same, Figure 4 is a plan view when locked, Figure 5 is a partially exploded perspective view. Code: 1 is the notch groove, 2 is the support, 3 is the door side pipe, 4
is a lock rod that also serves as a handle, 5 is a lock rod mounting portion that also serves as a handle, 6 is a receiving plate, 7 is a bolt, 8 is a nut, A is a curved part, and the mouth is a shaft part.

Claims (1)

[Scope of utility model registration request] A lock rod that also serves as a handle, in which a U-shaped support 2 with a cutout groove 1 formed on the left and right sides is fitted onto a door side pipe 3, and rings with curved outward ends are formed in the cutout groove 1 on the left and right sides. 4 is rotatably inserted, while a receiving plate 6 provided with an upwardly inclined handle-cum-lock rod mounting portion 5 is integrally tightened with bolts 7 and nuts 8 on the outside of the left and right pieces. An automatic locking device that doubles as a door handle in a greenhouse made of plastic.