JPH0241249Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a door lock for securing a gate in a closed position.

[Background technology]

As shown in FIGS. 1 and 2, conventional locks for gates include a U-shaped main body frame 2 attached to the lower outer surface of the gate 10, and a top and bottom lock that penetrates both the upper and lower parts of this main body frame 2. It is composed of a drop bar 1 that is slidably held in the axial direction and a knob 3 attached to the drop bar 1.
By rotating the knob 3 around the axis and aligning the notch 14 formed in the upper part of the main body frame 2, the drop bar 1 is dropped downward, and the lower end of the drop bar 1 is attached to the drop bar receiver provided on the ground G, L. 4, and when opening the gate 10, the operation was the opposite. This makes it difficult to operate, and although there is usually a gap between the lower end of the gate 10 and the ground G, L, the drop bar 1 can be easily dropped by simply lifting it from outside the gate 10 through this gap. Since it comes off from the rod holder 4, it does not function as an original lock. Furthermore, depending on the construction location, the dimension L between the lower end of the gate 10 and the ground G, L is usually not constant; There were times when the drop bar could not reach the drop bar receiver 4 embedded in the L. In the figure, 11 is a gatepost, and 12 is a hinge.

[Purpose of invention]

The present invention was developed in consideration of these points, and its purpose is to make the drop bar easier to operate, to prevent the drop bar from being lifted from outside the gate, and to improve the relationship between the gate and the ground. To provide a drop lock for a gate that can be adjusted for the difference in dimensions between the gates.

[Disclosure of invention]

The present invention consists of a drop bar, a body frame that is fixed to a gate door and holds the drop bar slidably in the vertical and axial directions, a latch means for securing the drop bar to the body frame, and a mechanism for vertically operating the drop bar. The latch means has a knob and an operation part for releasing the latch by the latch means, and the latch means is composed of a claw metal fitting that engages with a locking part arranged in a row on the main body frame and a spring that biases the claw metal fitting. It is characterized in that the latch means, the latch release operation part, and the knob are attached to a fixing metal whose fixing position with respect to the bar can be varied in the vertical direction,
Due to the presence of the latch means and the operating part for releasing the latch means, the drop bar cannot be raised without operating the operating part, and therefore the drop bar cannot be lifted from outside the gate, and the drop bar cannot be raised from outside the gate. By operating the knob together with the operation of the part, the drop bar can be moved up and down without having to align the notch and the knob as in the conventional example, and by changing the fixing position of the metal fitting with respect to the drop bar,
This allows the amount of downward protrusion of the drop bar to be adjusted without changing the stroke of the knob or the range of possible latching by the latching means.

The present invention will be described in detail based on the illustrated embodiment.
In the following figures, 11 is the gatepost, 12 is the hinge, 1
0 is a gate, and a lock is built into the stile of the gate 10. The drop bar 1 whose lower end fits into a drop bar receiver 4 embedded in the ground G, L has a slide plate 6 connected to its upper end, and the slide plate 6 is connected to the slide plate 6 by the body frame 2 fixed within the vertical frame of the gate 10. but,
In other words, the drop bar 1 is slidable up and down. The knob 3 is attached to this slide plate 6, and here it is done as follows. That is, a knob shaft 15 is provided protruding from a claw metal fitting 8 having a pair of claws that engage with row-shaped locking portions 13 arranged in two rows in the vertical direction on the main body frame 2.
is inserted into a U-shaped metal fitting 7, and the knob 3 is attached to the knob shaft 15.The end edges of both the upper and lower pieces touch the surface of the slide plate 6. Fastening fitting 16 in contact with
By screwing both ends of the metal fitting 7, the metal fitting 7 is fixed at an appropriate position in the vertical direction of the slide plate 6. The claw fitting 8 is fixed to the locking portion 1 by a spring 9 disposed between its surface and the back surface of the fitting 7.
3 and constitutes a latch means. 20 in Figures 5 and 6 is the knob shaft 1
5 is a decorative cover having a long hole 21 through which it is inserted, and is fixed to the main body frame 2 so as to sandwich the vertical stile of the gate 10 from the inside and outside; 23 is an eye having a slit 24 through which the knob shaft 15 is inserted; The hidden rubber plate, numeral 19 in Fig. 6 is a swaying metal fitting.

However, in the case of a lever, the claws of the claw metal fittings 8 are normally engaged with one of the locking portions 13 on the main body frame 2 under the bias of the spring 9 to latch against the vertical movement of the drop bar 1. When raising or lowering the drop bar 1, pull the knob 3, which also serves as the operation part for releasing the latch, to disengage the claw of the claw metal fitting 8 from the engaging part 13, and with the latch released, pull the knob 3.
It raises and lowers. When the hand is released from the knob 3, the knob 3 and the claw metal fitting 8 are returned by the spring 9, and the drop bar 1 is latched at that position.

Here, since the attachment position of the knob 3 to the slide plate 6 can be adjusted up and down from the point of the fixing structure of the metal fitting 7 to the slide plate 6, the gate 10 can be attached to the slide plate 6 as shown in FIG. Even when the dimension L from the lower end to the ground is larger than the vertical movement stroke l of the drop bar 1, the lower end of the drop bar 1 is set in advance so that it protrudes from the lower end of the gate 10 by the dimension l', as shown in FIG. By determining the attachment position of the knob 3 to the slide plate 6, the drop bar 1 can be fitted into the drop bar receiver 4. Regardless of the mounting position of the knob 3, this is done by changing the mounting position of the metal fitting 7 with respect to the slide plate 6, so it is determined by the movement range of the metal fitting 7 between the upper and lower parts of the main body frame 2. The stroke of the knob 3, that is, the stroke of the drop bar 1, does not change at all.
Since latching means for engaging the knob 3 are incorporated, the range of the latching action always corresponds to the full stroke range of the knob 3. Note that this knob 3 is arranged approximately at the vertical center of the vertical stile of the gate 10 so that it can be operated without bending down.

[Effect of idea]

In the present invention, the vertical movement of the drop bar is latched by the latching means, so it is not possible to lift the drop bar from outside the gate, and the vertical movement of the drop bar is also latched by the operating section. It is easier to operate the knob with the release of the knob than the conventional method, and even if the distance between the gate and the ground is larger than the stroke of the drop bar, the installation position of the knob relative to the drop bar can be changed. Since the amount of offset of the drop bar can be changed, adjustments can be made according to the above dimensions.In addition, the mounting position of the knob relative to the drop bar can be adjusted by adjusting the latch means and the metal fitting to which the knob is attached. Since this is done by changing the mounting position on the drop bar, the stroke of the drop bar is always constant, and the movable range of the latching operation of the latching means that latches by engaging with the locking part of the main body frame is limited. Also, all of the locking parts can be used and will not become short.

[Brief explanation of the drawing]

Fig. 1 is a front view of the conventional example, Fig. 2 is a perspective view of the same as above, Fig. 3 is a front view of an embodiment of the present invention, Fig. 4 is a perspective view of the same as above, Fig. 5 a, b, and c are 6 is an exploded perspective view of the same, and FIGS. 7 a and b are action explanatory views of the same,
1 is a drop bar, 2 is a main body frame, 3 is a knob, 7 is a metal fitting, 8 is a claw metal fitting, 9 is a spring, 10 is a gate, and 13 is a locking portion.

Claims (1)

[Scope of utility model registration request] A drop bar, a body frame that is fixed to the gate and holds the drop bar slidably in the vertical and axial directions, a latch means for fixing the drop bar to the body frame, and a knob for vertically operating the drop bar. The latch means is provided with an operation part for releasing the latch by the latch means, and the latch means is composed of a claw metal fitting that engages with a locking part arranged in a row on the main body frame and a spring that biases the claw metal fitting, and the latch means is fixed to the drop bar. A drop lock for a gate in which a latch means, a latch release operation part, and a knob are attached to a metal fitting whose position is variable in the vertical direction.