JPH0724559Y2 - Electric lock for gates - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an electric lock for gates, and more particularly to a technique for enabling reliable locking.

[Prior Art] Conventionally, as shown in FIG. 6, an electric lock for a gate has a lock rod 4 projectingly retractable from a frame frame 2 of one gate 1 so that the lock rod 4 can be electrically driven from the frame frame 2. The lock hole 3 formed in the frame frame of the gate 1 that is opposed to and protrudes is configured to protrude.

[Problems to be solved by the invention] However, in order to provide the lock bar 4 on the frame frame 2 of the gate 1 so as to project and retract, the length of the lock bar 4 may be set to be equal to or larger than the width of the frame frame 2. No, on the other hand, there is a gate between the opposite gates 1 and 1.
It is necessary to provide a gap D for opening and closing 1,1 rotation, and such a gap D spreads due to heat contraction of the gate 1 and a rotation holding portion that holds the gate 1 rotatably in winter. However, there is a problem that the amount of the lock bar 4 thrust into the lock hole 3 is insufficient and the locking may be incomplete.

The present invention has been made in view of such problems,
It is an object of the invention to provide an electric lock for a gate, in which the lock rod can be securely locked by increasing the length of the lock rod while accommodating the lock rod in the frame frame.

[Means for Solving the Problems] In the electric lock for a gate of the present invention, a lock rod 4 and a drive unit 8 for electrically driving the lock rod 4 forward and backward are provided in the horizontal frame frame 2 of the gate 1. It is characterized in that it is housed in the longitudinal direction of the frame 2, a lock hole 3 is formed facing the lock bar 4, and a power supply line to the drive portion 8 is wired in the frame frame.

[Operation] As described above, the lock bar 4 and the drive unit 8 for electrically driving the lock bar 4 forward and backward are housed in the horizontal frame frame 2 of the gate 1 in the longitudinal direction of the frame frame 2, and 4, the length of the lock bar 4 is limited to the width of the frame frame 2 by forming the lock hole 3 so as to be opposed to the drive hole 4 and arranging the power supply line to the drive unit 8 in the frame frame 2. Even if the distance between the lock rod 4 and the lock hole 3 is widened, the lock bar 4 is surely inserted into the lock hole 3 to ensure locking.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an overall front view, in which a gate 1 is rotatably attached to a gate post 5 by a rotating metal fitting 6 so that a handle 7 can be opened and closed. The gate 1 has a hollow frame 2 around its periphery, and a lock bar 4 formed relatively long in the lower frame 2 so as to project and retract. The lock 4 is electrically driven. It is designed to be able to be locked by projecting it into the lock hole 3 formed in the opposing gate 1. The configuration will be described in detail below.

FIG. 2 shows the drive unit 8 of the lock bar 4, and the entire drive unit 8 is built in the lower frame frame 2. That is, the motor 9 constituting the drive unit 8 is attached to the frame frame 2 via the mounting bracket 10, the screw rod 11 is integrally attached to the output shaft of the motor 9, and the screw rod 11 is slid into the frame frame 2. The freely inserted piece 12 is screwed, and the lock rod 4 is attached to the piece 12, and the screw rod 11 is rotated by the forward and reverse rotation of the motor 9 so that the piece 12 is moved in the longitudinal direction of the frame frame 2. The lock bar 4 can be slid and moved so as to project and retract from the end hole of the frame frame 2.
The electric power is supplied to the motor 9 by a power supply line (not shown) arranged in the frame 2. Reference numeral 19 in FIG. 2 is a guide.

FIG. 3 shows another embodiment, in which the female screw member 13 is attached to the output shaft of the motor 6, and the male screw portion 14 of the lock bar 4 is screwed into the female screw member 13 to form the frame frame 2. The projection 16 of the lock bar 4 is slidably inserted in the guide groove 15, and the lock bar 4 is configured to be capable of projecting and retracting by the forward and reverse rotation of the motor 6. FIG. 4 shows still another embodiment, which is a guide 17 of the lock bar 4.
Is extended from the mounting bracket 10. FIG. 5 shows still another embodiment of the above, in which a lock bar 4 is arranged in a vertical frame frame 2 of a gate 1 so as to project and retract in the vertical direction, and a lock hole 3 has a floor surface 18. It is formed on.

In this way, by providing the lock bar 4 so as to be movable in the length direction of the frame frame 2 and forming the lock hole 3 facing the lock frame 4, the length of the lock bar 4 becomes the width of the frame frame 2. It is possible to reliably lock the lock rod 4 which is lengthened without limitation and can be reliably pushed into the lock hole 3 even if the gap with the lock hole 3 is widened.

[Effects of the Invention] In summary, according to the present invention, the lock rod and the drive unit for electrically driving the lock rod forward and backward are housed in the horizontal frame frame of the gate in the longitudinal direction of the frame frame and face the lock frame. To form a lock hole, and the power supply line to the drive unit is wired in the frame frame, the length of the lock bar and its drive unit accommodated in the horizontal frame frame is limited. Even if the gap between the lock hole and the lock hole is wide, a long lock bar can be reliably pushed into the lock hole, and locking can be performed reliably, and its power supply line is also wired in the frame frame. And has the advantage that the appearance is good.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a partially sectional front view showing a driving structure of the lock bar of the same, and FIG. 3 (a).
FIG. 3B is a partially sectional front view showing the driving structure and operation of the lock rod of another embodiment of the same, FIG. 3C is the sectional view of the same, and FIGS. FIG. 5 is a front view showing a partial cross-section of yet another embodiment of the above, a cross-sectional view, FIG. 5 is an overall front view of another embodiment of the above, FIG. Is a frame frame, 3 is a lock hole, 4 is a lock bar, and 8 is a drive unit.

Claims (1)

[Scope of utility model registration request] 1. A lock rod and a drive unit for electrically driving the lock rod forward and backward are housed in the horizontal frame of the gate in the longitudinal direction of the frame, and a lock hole is formed facing the lock rod. An electric lock for a gate, in which a power supply line to the drive section is wired in the frame frame.