JPS5820054Y2 - crescent tablet - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a crescent lock in which a crescent is built into a base.

For crescent locks, especially built-in crescent locks, there is a limit to the size of the crescent, so the protrusion width of the crescent is limited, so there may be errors in the manufacturing, installation, or installation of shoji screens, etc., or due to use. If play occurs, the crescent may not be able to smoothly lock onto the metal fitting.

In order to increase the protruding width of the crescent, it is possible to make the crescent itself larger or to place the crescent support shaft sufficiently close to the outside of the shoji, but the former method results in the crescent lock becoming larger, especially the width dimension. However, the latter method has the drawback that the crescent operating lever is close to the outer shoji glass, making locking and unlocking difficult.

The present invention was developed with attention to the above points, and by separating the crescent support shaft and the lever shaft so that the rotation of the operating lever is indirectly transmitted to the crescent, the operating lever can be moved against the shoji. It can be placed closer to the inside, which makes it easier to operate the operating lever, and allows for a larger protruding width of the crescent, and the internal mechanism absorbs looseness due to component tolerances, allowing the receiver to smoothly engage with the metal fittings. The purpose is to provide Crescent tablets.

Embodiments of the present invention will be described below with reference to the drawings.

1 is a pedestal, and 2 is a substrate attached to the back surface of the pedestal 1.

Reference numeral 3 denotes a crescent supported by the base plate 2 with a crescent support shaft 4, which fits within the hollow part 5 of the base 1 when unlocked (Fig. 1) and projects outward when locked (Fig. 2). It has become.

Reference numeral 6 denotes an operating lever, which is rotatably supported on the base 1 via a lever shaft 7.

The axis 01 of the lever shaft 7 is shifted inward by a predetermined dimension from the axis 02 of the support shaft 4 (see Figures 5 and 7).
.

The hollow portion 5 is provided in the square shaft portion 7a at the lower end of the lever shaft 7.
A rotating piece 8 is fixed inside.

A long groove 9 is formed in the lower surface of the rotating piece 8, and a pin 10 fixed to the crescent 3 is loosely fitted into the long groove 9.

A flat part 11.11 is formed on both sides of the upper part of the rotating piece 8,
A locking piece 13 biased by a spring 12 is in elastic contact with this flat portion 11.11.

Next, the effect will be explained.

1 and 2 are front views of the crescent lock attached to the vertical stile 15, with FIG. 1 showing the unlocked state and FIG. 2 showing the locked state.

Turn the operating lever 6 180 degrees counterclockwise from the state shown in Figure 1.
Rotate.

As the operating lever 6 rotates, the rotating piece 8 rotates via the lever shaft 7, and the crescent 3 rotates about the support shaft 4 via the pin 10, thereby locking as shown in FIG.

In the locked and unlocked positions, the locking piece 13 engages with the flat portion 11.11 of the lever shaft 7 to restrict rotation.

Note that instead of the locking piece 13, a pair of leaf springs are used to connect the flat portion 11.
11 may be held in between.

A double locking mechanism can be constructed by adding means for preventing the locking piece 13 from moving when the lock is locked, if necessary.

For example, as shown by chain lines in FIG. 31, a removable locking pin 14 may be provided on the pedestal 1 to restrict the locking piece 13 from behind when locking, or the rotating piece 8 or the crescent 3 may be directly regulated by a locking pin.

As described above, according to the present invention, the lever shaft and the crescent support shaft are separated, and the rotation of the lever shaft is transmitted to the crescent via the rotating piece and the pin, so that the position of the lever shaft and the crescent shaft are Therefore, for example, by setting the crescent support shaft toward the outside and the lever shaft toward the inside, the protruding width of the crescent can be set to be large relative to the width of the pedestal. Moreover, the operating lever can be appropriately accessed from the indoor side surface of the outer shoji and provided at a position where it can be easily operated.

Furthermore, by separating the operation lever and crescent,
Even if looseness occurs due to tolerances of each part or due to use, the looseness is absorbed at the connecting part between the pin and the long groove provided below the rotating piece, so the locking and unlocking are always smooth with no external effects. It has the effect of being operable.

[Brief explanation of drawings]

The figures show one embodiment of the present invention;
The figures are front views of the unlocked state and the locked state, respectively, and Fig. 3, Fig. 4, and Fig. 5 are the III line of Fig. 1, respectively.
-IV line and v-v line sectional views, FIGS. 6 and 7 are respectively vI-vI line and VII-VII sectional views of FIG. 3, and FIG. 8 is an exploded perspective view. 1...Pedestal, 2...Board, 3...
...Crescent, 4...Crescent axis, 6...
...Operation lever, 7...Lever shaft, 8...
...Rotating piece, 10...Pin, 12...
...Spring, 13...Latching piece.

Claims (1)

[Scope of utility model registration request] A crescent 3 is rotatably supported on a base plate 2 via a crescent support shaft 4, and a rotating piece 8 having a long groove 9 downward is fixed to a lever shaft 7 having a square shaft portion 7a supported by a pedestal 1. The rotating piece 8 and the pin 10 protruding from the crescent 3 are loosely connected via the long groove 9, and
A crescent lock characterized in that an axis 01 of the lever shaft 7 is shifted inward from an axis 02 of the crescent support shaft 4.