JPS585015Y2 - Auxiliary lock - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an auxiliary lock for sliding doors that uses a metal frame called a satsushi.

Examples will be described in detail below with reference to the drawings.

1 is the lower frame of the sash, 2 is the vertical frame of the inner glass door (hereinafter referred to as shoji), 3 is the vertical frame of the outer glass door (hereinafter referred to as outer shoji), 4 is its lower frame, 5 is the glass of the outer shoji, 6 and 7 are Satsu,
A rail 8 provided integrally with the lower frame 1 is a rising wall provided inside the lower frame 1.

In such a sash-type sliding door, a lock is provided between the vertical frame frames 2 and 3 of the inner and outer shoji, but the present invention is a lock that further assists the lock.

In this type of lock, the lock main body is attached to a rising wall 8, the vertical stile frame 2 of the inner shoji is received on the side of the lock, and the lower vertical stile frame 4 of the outer shoji is held perpendicular to the voice part using a pusher provided on the lock main body. Those with a pressing configuration are known.

However, in the conventional lock main body, the lock body is attached by directly pushing the rising wall 8 with a bolt, and therefore, when the lock body is attached and removed on a daily basis, the rising wall may be damaged, which is a hassle.

Of course, the one disclosed in Japanese Utility Model Application Publication No. 52-123095 uses a dowel, but it has the inconvenience of having to open a space between the dowel and the mating piece with a fingertip during adhesion.

In addition, since it is weak to simply press the frame of the outer shoji, a recess is provided to engage the tip of the pusher as described in the above-mentioned publication.

However, since the door shoji is applied to a half-open state or any other open position, it is not desirable for the appearance of the door shoji to provide the engaging recesses at several locations.

This proposal has been devised in view of the above-mentioned points, and has a flat fixed gripping piece a for attaching to and detaching from the rising wall 8 of the window sash lower frame 1 and a flat movable gripping piece a. A lock body d which is equipped with a bolt C for advancing and retracting the barb on the lower surface and is hooked to the side surface 21 of the vertical stile frame 2 of the inner shoji 2, and an L cedar for holding down the outer shoji lower frame attached to the lock body d. It consists of a plate pusher f.

A cushioning material f1 is attached to the right-angled rising pressing surface of the pusher f so as not to damage the lower frame 4.

A projection g having a substantially rectangular cross section is provided on the lower surface of the lock body d opposite to the fixed gripping piece a, and side edges bl and b2 are provided along both side surfaces and the bottom surface of the projection g.
, the bottom side b3 is provided on the bite piece.

Both ends of the bottom b3 are engaged with the groove g1 of the protrusion g to prevent it from falling.

Also, a rising piece b4 is provided in a part of the bottom side b3, a groove g2 for advancing and retreating this rising piece is provided in the protrusion g, and a rear end g3 of the groove is provided.
A coil spring h is sandwiched between the rising piece b4 and the rising piece b4.

When the pole (c) screwed into the screw hole of the protrusion g is screwed in, its tip pushes the movable bite piece, and the movable bite piece moves forward while compressing the spring h, rises, and is pressed against the wall 8 and fixed. The lock body d is attached to the rising wall 8 by the bite piece a.

When the bolt 'C is unscrewed, the movable jaw piece is moved back by the spring h and is always separated from the fixed jaw piece a to form a mounting gap with respect to the rising wall 8.

Note that the pole (c) may be rotatably attached to the protrusion (g) so as not to move forward or backward, and may be screwed into a nut provided on the movable bite piece.

The pusher f is a rotating body j that is integrated with the knob e on the top surface of the lock body d.
A groove or protrusion is provided in a spiral shape, and a protrusion k that engages with the spiral is provided on the pusher f to advance and retreat.

Since the auxiliary lock of this invention has the above-mentioned structure, the fixed gripping piece a with a wide surface and the movable gripping piece can grip the rising wall 8. As shown in the disclosure, tighten the rising wall 8 at the tip of pol) c.
There is no power to hurt someone.

The lock body d fixed to the rising wall 8 hooks the side surface 21 of the inner shoji 2, and the wide flat surface f1 of the L elbow plate pusher f presses strongly against the lower frame 4 of the outer shoji, so that the lower frame is not damaged. It has a large locking force.

Since the pusher f merely presses the inner shoji 3 with its wide surface and does not provide an engaging recess (see Japanese Utility Model Application Publication No. 123095/1983), it can be attached to any horizontal position of the rising wall 8.

At this time, the movable bite piece is moved back by the spring h so that there is always a gap between the movable bite piece and the fixed bite piece a, so there is no inconvenience of having to open each piece with your fingertips during installation.

The movable bite piece has a protrusion g on the side bl, b2, and base b3.
Since the both ends of the bottom side b3 and the return spring support upper side b4 are engaged with the grooves gl and g2 of the projection g, the position of the movable bite piece does not shift. Groove g
The spring h sandwiched between the spring h and the rear end g3 of the spring h does not fall off.

Therefore, it can be used for a long time without failure or damage.

Since the pusher f advances and retreats by engaging its protrusion k with the spiral groove of the rotating body j that is integrated with the knob e, it has the effect of providing a strong suppressing force.

[Brief explanation of the drawing]

FIG. 1 is a side view of the auxiliary lock according to the present invention in a state of use, FIG. 2 is a front view, and FIG. 3 is a cross-sectional view taken along line Ill-III in FIG. 2. 1 is the lower frame of the window frame sash, 2 is the inner shoji, 3 is the outer shoji, 4 is its lower frame, 8 is the rising wall of the lower frame 1, a is the fixed planar piece, b is the movable planar piece. One piece, C, is a movable jaw that moves forward and backward, d is the lock body, f is the pusher, and e is its operation knob.

Claims (1)

[Claims for Utility Model Registration] A fixed gripping piece a and a square protrusion g for engaging the rising wall 8 of the sash 1 are provided on the lower surface of the lock body d, and side edges bl are provided along both sides and bottom of the square protrusion g. , b2, and a movable bite piece having a bottom side b3, and both ends of the bottom side b3 are connected to grooves g1 of the protrusion g.
A groove g2 for advancing and retracting a part of the rising side b4 of the bottom side b3 is provided in the protrusion g, and the rising side b4 and the rear end g3 of the groove g2 are engaged with each other.
A movable biting piece return spring h is provided between the bolt C and a bolt C for advancing the movable biting piece to the square projection g.
A rotating body j that is rotated by a knob e is provided on the lock body d, a protrusion K that engages with the spiral groove is provided on the L cedar plate pusher f, and a cushioning material f1 is provided on the right-angled rising surface of the tip of the pusher f. Auxiliary lock with attached.