JPS5814218Y2 - latch lock - Google Patents

Description

[Detailed description of the invention] This invention mainly relates to improvements in latch locks used for smoke exhaust windows, high windows, and various doors.

Conventionally, latch locks that can be operated by remote control are often used for windows that are located at high positions and are difficult to lock and unlock by hand, such as smoke exhaust windows and high windows.

This invention is an improvement on such a latch lock, and by making the main body and latch part independent, and by reversing the latch part, it can be used selectively for inside windows and outside windows, and some of the interior parts can be assembled and attached to special vehicles. The present invention provides a latch lock that allows you to select whether to pull the wire to the right or to the left during remote control, making installation easier.

This invention will be described in detail below with reference to an illustrated embodiment.

In the figure, 1 is the main body of the latch lock, which has an outer case 2 formed by bending a plate into a channel shape, and a moving frame 3 is housed in the outer case 2 so as to be movable along the longitudinal direction. ing.

Square holes 2C and 2d are opened approximately at the center of the top plate 2a and bottom plate 2b of the external case 2, and a guide member 4 is screwed into the square hole 2d of the bottom plate 2b from the outside.

The guide member 4 is made by folding the central part of a plate 4a into a rectangular shape and forming a pair of spring holders into pieces 4b.
A protrusion 4C with which one end of the compression spring 5 engages is provided on the outer surface of b.

The piece 4b of each armrest is fitted into the movable frame 3 housed in the outer case 2 from the corner (L2d), so as to slide and guide the movement of the movable frame 3.

The movable frame 3 has a structure in which rising portions 3b are folded up from each end of a leg plate 3a that is in sliding contact with the upper surface of the lower surface plate 2b of the outer case 2. Between each rising portion 3b on one end side, one spring of the guide member 4 is provided. The receivers are connected to each other by a locking portion 3C that is locked to the piece 4b.

A compression spring 5 is interposed between the spring holder 6 and the other spring holder piece 4b, and urges the moving frame 3 in one direction. The head 8a of the protruding rod 8 is fixed to the slide member 7 on the protruding locking portion 6a.
is engaged.

The slide member 7 is the upper and lower surface plate 2a of the external case 2.
, 2b is supported by the plate 9.

For installation, the plate 9 has sections 9b bent at almost right angles to the main plate 9a on both ends of the main plate 9a;
is screwed to the top plate 2a of the outer case 2.

Further, a pair of elongated holes 9C are bored in the main plate 9a along the elongated direction, and the heads 8°a of the protruding rods 8 protruding from both ends of the slide member 7 slide into these elongated holes 9C. It is inserted freely.

The slide member 7 is formed by folding back the piece 7b to attach the cable 10 from the central part of the plate body 7a to the opposite side of the main plate 9a. In the above-mentioned installation, a tension spring 11 is stretched between one of spring stopper pieces 9d bent at both ends of the main plate 9a of the plate 9, and urges the slide member 7 in the same direction as the moving frame 3.

Further, to attach the slide member 7, a clamping plate 12 is screwed to the upper surface of the piece 7b.

This clamping plate 12 is for clamping and fixing the cable 10 used when remotely controlling the latch lock with the mounting piece 7b, and has a leg part 12a in the shape of a hollow main character. After the leg portion 12a is fitted into the slot 7d formed in the piece 7b, it can be fixed to the piece 7b by screwing it to the piece 7b.

Note that 12b is a notch through which the cable 10 is inserted.

On the other hand, a latch portion 13 is detachably attached to the square hole 2C of the top plate 2a of the external case 2 from above.

This latch portion 13 has a structure independent of the main body 1, and has a square hole 13b formed in the center of the plate 13a, and a latch 14 is accommodated in the square hole 13b so as to be freely retractable.

The latch 14 has a prismatic shape with an inclined tip, and a groove 14a is formed on one side surface.

There is a step 14b in the middle of the groove 14a, and this step 1
A spring seat 16 attached to one end of the compression spring 15 is in contact with the spring 4b.

In addition, for the above-mentioned installation, a U-shaped guide frame 17 is fixed to the back surface of the plate 13H, and the inner surface of this guide frame 17 guides the latch 14 to move in and out. The other end of the compression spring 15 is in contact with the bottom plate 17a.

Furthermore, from the bottom plate 17a side edge of the guide frame 17, there is a tongue piece 17.
b is bent, and the tip of the tongue piece 17b is fitted into the groove 14a of the latch 14 to guide the vertical movement of the latch 14.

The guide frame 17 of the latch portion 13 configured as described above is inserted into the movable frame 3 in the external case 2 through the square hole 2C,
For installation, the plate 13a is screwed to the top plate 2a of the outer case 2.

Note that 18 is a cover attached to the main body 1, and the tip of the latch 14 is designed to protrude from the notch 18a.

The operation when the above latch lock is attached to the outward folding window shown in FIG. 6 will now be described.

The main body 1 is attached to the upper frame 20 using a back plate 19 so that the latch 14 faces downward.

When the window 21 is closed in this state, the lock receiver 22 attached to the upper stile 21a of the window 21 comes into contact with the slope of the latch 14, causing it to sink into the main body 1, and the hole 22a of the lock receiver 22 is aligned. By the way, it protrudes into the hole 22a again and becomes locked.

At this time, one rising portion 3b of the movable frame 3, which is biased by the compression spring 15, comes into contact with the rear surface of the latch 14, as shown in FIG. 7a, and prevents the latch 14 from rotating. The state is maintained.

Next, when unlocking, pull the cable 10.

As a result, the slide member 7 is moved, and the head 8a of the protruding rod 8 protruding from the slide member 7 moves the moving member 3 via the locking portion 6a of the piece 6 in the direction opposite to the biasing direction of the compression spring 5. Move to.

Due to the movement of the movable member 3, the latch 14, which had been prevented from rotating by the rising portion 3b, is now in an unlocked state where it can freely rotate, as shown in FIG. 7, and the window 21 can be opened. It is.

On the other hand, in the case of an inward-folding window shown in FIG. 8, the latch portion 13 may be attached to the main body 1 by inverting it.

In other words, the main body 1 is installed in the same way as an outward folding window, and the latch part 1 is
3 only to the main body 1 so that the inclined surface of the latch 14 faces outward.
Just install it to.

Further, the locking/unlocking operation for the inward-folding window is the same as that for the outward-folding window, so a description thereof will be omitted.

Furthermore, in order to make the cable 10 pull to the right or to the left, select the compression spring 5 interposed between the spring holder piece 6 and the spring holder piece 4b of the movable frame 3 to the left or right during assembly. At the same time as changing the biasing direction, one end of the tension arm 11 that biases the slide member 7 is also selectively locked to the spring stoppers 9d at both ends of the plate 9a, and the biasing direction of the slide member 7 is changed to the moving frame. It is only necessary to align it in the biasing direction shown in step 3.

These operations can be done by simply removing the frame 9 and guide member 4 from the main body 1, and the attachment to the window frame can be easily changed on site.

Of course, this latch lock is not limited to windows that fold inwards or windows that fold outward.
It can also be used for various windows and doors.

As detailed above, this idea can be easily changed for windows that fold inward or outward by simply changing the direction of the latch part that is independent from the main body, making installation work easier on-site. Even when a cable is attached and operated remotely, you can easily select right or left pull by simply changing the biasing direction of the moving frame and slide member, so latch locks for right and left pull are available. There's no need to.

In addition, the compression spring biases the movable frame plate and the tension spring biases the slide member in the same direction, and at the end of the stroke of the movable frame plate, the rising portion of the movable frame plate prevents rotation of the latch, resulting in a locked state. This makes it possible to maintain the locked state reliably, and even if one spring deteriorates and the spring force decreases during long-term use, the locked state can be maintained, which is good for crime prevention. It's safe.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, and Fig. 1 is a front view of the installed state, Fig. 2 is a perspective view of the assembled state, Fig. 3 is an exploded perspective view of the same, and Fig. 4 is a sectional view of the assembled state. , Figure 5 is the fourth
Figure 6 is an explanatory diagram of the state in which it is installed on an outward-folding window, Figure 7 a and b is an explanatory diagram of its operation, and Figure 8 is an explanatory diagram of the state in which it is installed in an inward-folding window. It is. 2 is an external case, 3 is a moving frame, 3b is a rising part, 4 is a guide member, 5 is a compression spring, 6 is a spring support piece, 7 is a slide member, 7b is a mounting piece, 8 is a protruding rod, 8a is a head,
9 is a mounting plate, 9d is a spring stopper, 10 is a cable, 11 is a tension spring, 12 is a clamping plate, 13 is a latch portion, and 14 is a latch.

Claims (3)

[Scope of utility model registration request] (1) The movable frame 3 movably housed in the outer case 2 and biased in one direction by the compression spring 5 and the mounting attached to the outer case 2 are slidably supported by the plate 9. , and a slide member 7 that is biased in the same direction as the movable frame 3 by a tension spring 11 and that partially engages with the movable frame 3 and moves at the same time, and each rising portion erected on the movable frame 3. It has a latch 14 whose proximal end is inserted between the latch 3b and whose rotation is prevented by the rising portion 3b when the latch is locked.
A latch lock comprising a latch portion 13 detachably attached to the external case 2. (2) A guide member 4 for guiding the movement of the movable frame 3 is attached to the outer case 2, and a compression spring 5 is attached between the spring holder of the guide member 4 and the piece 6 of the spring holder attached to the movable frame 3. The latch lock according to claim 1 of the utility model registration claim, wherein the latch lock is interposed. (3) Attach to the spring stoppers 9d formed on both sides of the plate 9.
A latch lock according to claim 1, wherein one end of a tension spring 11 is engaged with a slide member 7, and the other end of a tension spring 11 is selectively engaged.