JPH0765414B2 - Crescent tablets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a crescent lock in which a handle base is slidable in a lateral direction of the base so as to be adjustable and fixed to the base.

[Conventional technology and its problems]

Metallic sashes such as iron and aluminum are commonly used for openings in buildings such as houses and buildings, and crescent locks are used as locking devices in the metallic sashes for windows and entrances.

When manufacturing a metal sash, the crescent tablet is manufactured according to the sash, so that the size and the mechanism of the crescent tablet differ depending on the sash manufacturer. For this reason, if the crescent lock is worn or damaged after many years of use, it is necessary to replace it with a new one, but it is difficult to use a product other than that specified by the sash maker for the reasons described above.

In order to improve this, a method has been proposed in which the handle base is slid laterally together with the pedestal fixed to the sash side for adjustment (see, for example, Japanese Utility Model Laid-Open No. 55-162661).

In this method, holes are drilled in the screw fixing parts at both ends of the pedestal, and a locking member that can move laterally with respect to the pedestal is fitted into this window hole, and this locking member and the inside of the window can be engaged with each other. 2) When the pedestal is adjusted laterally with respect to the sash through this locking member by forming a special locking portion and passing a screw through the locking member,
Loosen the screw of the book, remove the locking member fitted in the window hole from the window hole, disengage the concave and convex locking, then pinch this locking member and move it inside the window hole, install it in the proper position Then, after that, the locking member is tightened again with screws and adjusted and fixed. Therefore, the adjustment of the pedestal in the lateral direction requires loosening two screws, moving the two locking members in a narrow position in the window hole, re-tightening the screws, and is troublesome, and is troublesome. However, it is difficult to exchange and adjust quickly and easily.

In view of this, it is an object of the present invention to provide a crescent lock that can be easily adjusted.

[Means for solving problems]

In order to achieve the above object, the crescent lock of the present invention has a dovetail groove formed in a pedestal that is fixed to the sash by a fixing screw so as to be positionally adjustable, and the handle of the crescent lock is rotatably provided. The tongue is slidably inserted into the dovetail groove of the pedestal, and the engaging rack formed on one of the engaging sides of the handle base is engaged with the engaging member formed on the pedestal. The gist is that the pedestal and the handle base are fixed by engaging the locking rack formed on the member and tightening the locking member with the fixing screw.

〔Example〕

 Hereinafter, the present invention will be described based on the illustrated embodiments.

In the figure, 1 is a pedestal, which has a size that can be fixed to a metal sash and has a rectangular shape as shown in FIG.
A dovetail groove 11 is formed at the center position of the upper surface so that the handle base can be slid in the lateral direction of the pedestal so as to be fitted and supported.
A through hole 12 is formed in the center of the inner bottom surface of the dovetail groove 11, and the through hole is formed.
A long hole-like counterbore 13 is formed on the outer periphery of 12 and in the lateral direction of the pedestal. The pedestal 1 is provided with an elongated screw hole 14 parallel to the longitudinal direction of the pedestal at one end and a locking member fitting portion 15 for fitting a locking member at the other end.

As shown in the figure, one end of the locking member fitting portion 15 is electrically connected to the dovetail groove 11, and a step 151 for supporting one end of the locking member 3 described later is formed on the inner surface of the other end. Locking member retaining grooves 152, 152 for inserting and supporting the stopper projections 32, 32 of the locking member 3 on the inner surfaces facing each other in the longitudinal direction so as to prevent the locking member 3 from accidentally jumping out above the pedestal 1. To provide.

Handle base 2 fitted and supported in the dovetail groove 11 of this pedestal 1
As shown in FIG. 5, a base portion 21 having a width wider than the lateral width of the pedestal 1, and a cylinder protruding from the upper portion of the base portion 21 and accommodating a handle rotation mechanism (not shown). The base part 21 has locking sides 23a and 23b which are fitted into the dovetail groove 11 so that the dovetail groove 11 is slidable, and the base part 21 has a handle on the inner bottom part of the handle base 2. A hole 24 for caulking and fixing the tip of the screw shaft 6 for rotatably supporting the hole is formed, and a groove 24 is provided on the outer periphery of the hole 24 and on the bottom surface side of the handle base 2. A washer is fitted into the groove 25, and the tip of the screw shaft 6 penetrated through the hole 24 is caulked and fixed. A protrusion 26 for preventing the handle from turning is provided on the inner peripheral side of the cylindrical main body 22, and a groove 27 for fixing the handle on the outer peripheral side. Further, the locking sides 23a, 23b of the base portion 21
A concave and convex locking rack 28 is formed on the upper surface which is the inclined surface of the one locking side 23a.

Locking member 3 fitted in locking member fitting portion 15 of pedestal 1
As shown in FIG. 4, a long hole-shaped screw hole 31 is formed at the center, and projections 32, 32 are provided on both sides so as to project.
A pressing piece 33 is provided so as to project one end of the locking member 3 into the dovetail groove 11, and an uneven locking rack 34 is integrally formed on the lower surface of the pressing piece 33, which is an inclined surface. The locking rack 34 and the locking rack 28 of the handle base are engaged with each other.

Reference numeral 4 denotes a spring, which is inserted into the locking member fitting portion 15 of the pedestal, and the through hole 41 formed at the base end thereof is inserted into the projection 154 protruding from the pedestal 1 so as to be fixed to the pedestal 1. This is a leaf spring, and the spring 4 urges the locking member 3 upward.

A crescent-shaped handle 5 is rotatably supported on the handle base 2 by a screw shaft 6.

Next, the order of assembling the crescent lock using the respective components configured as described above will be described.

The locking member 3 is inserted into the locking member fitting portion 15 of the pedestal 1 from the back side of the pedestal. At this time, the retaining projection 32 is formed to be inserted into the retaining groove 152, and then the spring 4 is inserted into the lower surface of the locking member 3 and fixed to the pedestal. As a result, the locking rack 34 side of the locking member 3 is always urged upward of the pedestal by the action of this spring.

Next, the handle base 2 is inserted into the dovetail groove 11 of the base 1 from the side of the base 1. At this time, the washer 7 is inserted into the concave groove 25 of the handle base 2. In this way, the components necessary for the handle rotation mechanism are inserted into the handle base 2, the handle 5 is assembled to the handle base 2, and the screw shaft 6
Through the washer, and the tip of the screw shaft 6 is passed through the washer 7, which is caulked and fixed together with the washer.

The caulking work of the tip of the screw shaft 6 is performed through the hole 12 in the center of the pedestal. As a result, the caulked portion 61 of the screw shaft 6 is fitted into the counterbore 13 of the pedestal, and this acts as a stopper so that the caulked portion 61 can move within the slotted counterbore 13. However, the handle base 2 will not come off from the base 1.

In this state, the locking side 23a of the handle base 2 is not pressed by the pressing piece 33 of the locking member 3, and freely slides within the length of the slotted counterbore 13 (first Figure 1 (A)).

Then, the screw 72 for mounting the crescent lock is inserted into the elongated screw 14 of the base 1 to fix the base 1 at a predetermined position of the sash, and the screw 71 for mounting the crescent lock is fixed to the screw of the locking member 3. It is inserted into the hole 31, and the handle base 2 is aligned and screwed into the sash side. By this screwing, the locking member 3 is pushed down, the locking rack 34 of the locking member 3 and the locking rack 28 of the handle base 2 mesh with each other, and the handle base 2 is fixed (see FIG. )).

At this time, the handle base is pressed downward by the pressing piece 33 of the locking member and the dovetail groove 11 on the side opposite to the locking member 3 is pressed.
Since it is pressed against the wall surface, the handle base 2 can be firmly held.

When the handle base 2 is again slidably adjusted with respect to the pedestal 1, when one of the crescent lock mounting screws 71 is loosened, the locking member 3 is naturally pushed up by the action of the spring 4 and the handle Since the fixing of the base 2 is released, the sliding adjustment can be easily performed with one driver.

〔The invention's effect〕

According to the present invention, when mounting the crescent lock, the driver can adjust the mounting position of the handle base by only tightening one of the two screws for mounting the crescent lock with a screwdriver. Can be installed simply, quickly and accurately. Also, in the case of readjustment, it is sufficient to loosen one screw, and the pedestal will not shift and the handle base and locking member will not come off from the pedestal, so the crescent lock can be adjusted easily, quickly and accurately. You can

[Brief description of drawings]

FIG. 1 is a front vertical sectional view of a crescent lock of the present invention ((A)).
Is a movable state, (B) is a fixed state), FIG. 2 is the same plan view,
FIG. 3 is an explanatory view of the pedestal ((A) is a plan view, (B) is a front vertical sectional view, (C) is a bottom view), and FIG. 4 is an explanatory view of the locking member ((A) is a plan view). , (B) is a front vertical cross-sectional view, (C) is a bottom view, (D) is a side view), FIG. 5 is an explanatory view of a handle base ((A) is a plan view, (B) is a front vertical cross-sectional view). ), FIG. 6 is an explanatory view of the handle, and FIG. 7 is an explanatory view of the spring ((A) is a plan view and (B) is a front view). 1 is a pedestal, 11 is a dovetail groove, 13 is a counterbore, 15 is a locking member fitting portion, 2 is a handle base, 21 is a base portion, 22 is a main body portion, 23a,
23b is a locking side, 24 is a locking rack, 3 is a locking member, 33 is a locking piece, 34 is a locking rack, 4 is a spring, 5 is a handle and 6 screw shafts.

Claims (1)

[Claims] 1. A dovetail groove (11) is formed in a pedestal (1) fixed to a sash by fixing screws (71, 72) so that its position can be adjusted, and a crescent lock handle (5) is rotatably provided. The locking sides (23a, 23b) of the handle base (2) are slidably fitted into the dovetail grooves (11) of the pedestal (1), and the locking sides (23a) of the handle base (2) are fitted. The formed locking rack (28) has a locking member fitting portion (15) formed in the pedestal (1).
Locking rack (3) formed on the locking member (3) fitted to
The crescent lock characterized in that the pedestal (1) and the handle pedestal (2) are fixed by engaging 4) and tightening the locking member (3) with the fixing screw (71). .