JPH0461148B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a temporary lock called a latch tube, and particularly to a temporary lock device for a lever handle suitable for use with a lever handle.

With conventional latch tubes, the casing is inserted into a hole drilled in the door from the front side of the door, and the face plate of the tube is screwed to the door to secure it.
A spindle was inserted into the hub, and grip balls and the like were fixed to the spindle, and by rotating them, the hub was rotated and the latch was operated.

In this case, the grip ball, etc. is fixed to the door by a round seat, etc., but the rotation of the spindle is transmitted to the casing via the hub, and each time the hub rotates, the casing swings upwards or downwards. The vibration was transmitted to the face plate and caused the face plate to swing, resulting in loosening of the attachment of the casing, etc.

Such loosening will in turn affect the spindle, and if the casing loosens, the spindle will also loosen, and once loosening begins, the slack will interact with each other, eventually rendering the entire latch system unusable. It used to be that I couldn't get enough of it.

The present invention relates to a temporary locking device for a lever handle, which is intended to eliminate such drawbacks and completely eliminate loosening caused by use of the latch portion and handle portion.

To explain the structure according to the drawings, 1 is the indoor lever handle, 2 is the outdoor lever handle,
They are each fixed to the door 5 by a round seat 3 on the indoor side and a round seat 4 on the outdoor side.

Reference numeral 6 denotes a spindle, which is inserted into one lever handle such as the outdoor lever handle 2 so as not to be fixed or detached, and the other end thereof is inserted and fixed into the handle shaft of the indoor lever handle 1.

7a and 7b are first and second legs installed to cover the entire length of the spindle 6, one end of which is fixed to the outdoor round seat 4, and the other end inserted into the indoor round seat 3. There is.

As shown, the spindle 6, the first leg 7a and the second shaft 7b pass through the case 8 of the tubular lock.

Next, to explain the internal structure of the tubular lock, the spindle 6 is inserted into the hole 9 drilled in the case 8.
A hub 10 into which is inserted is installed, and a fan-shaped first hole 11a and a second hole 11b into which the first leg 7a and second leg 7b are inserted are provided around the hole 9. There is.

Reference numeral 12 denotes a protruding cam protruding from the hub 10 in the case 8, and a shaft 1 protruding from the inner wall of the case 8.
The first leg 14a of the intermediate cam 14 is pivotally connected to the first leg 14a of the intermediate cam 14.

The second leg 14b of the intermediate cam 14 is the retracting piece 1
It is inscribed in one end of 5. A latch head 18 is connected to the other end of the retractable piece 15 via a cross head 16 and a latch bolt 17, and the latch head 18 is connected to a partition wall 19 provided inside the case 8.
A spring 20 is tensioned therebetween, tending the latch head 18 to protrude from the case 8.

21 is a guide pin protruding from the hub 10; 22
2 shows a face plate which is fixed to the case 8 and allows the latch head 18 to protrude.

In FIG. 1, in which the above structure is assembled, the spindle 6 passes through the hub 10, and the first leg 7a and the second leg 7b are connected to the first hole 11a and the second hole, respectively.
11b and passes through it. Therefore, the hub 10 is wrapped in the first leg 7a and the second leg 7b. Further, the face plate 22 of the case 8 is fixed to the front of the door 5 with screws or the like.

In terms of operation and function, when the lever handle 1 is turned and the hub 10 is rotated clockwise in FIG.
By pressing the first leg 14a of the intermediate cam 14 and rotating the intermediate cam 14 in a counterclockwise direction about the shaft 13, the second leg 14b of the intermediate cam 14 moves the retracting piece 15 to the right in the figure. The end of the retracting piece 15 pulls the latch head 18 into the case 8 against the spring 20 via the cross head 16 and latch bolt 17.

In this case, the turning of the indoor lever handle 1 or the outdoor lever handle 2 is transmitted to the hub 10 by the spindle 6, but the case 8 is connected to the indoor round seat 3 and the outdoor round seat fixed on both sides of the door 5. 4, the first leg 7a and the second leg 7 are securely supported and fixed.
Since the case 8 is supported by b, unnecessary rocking of the case 8 is completely prevented, and rattling that causes loosening of various parts does not occur.

As described above, according to the present invention, the structure of the tubular lock that can be retracted by a small rotation angle of the hub 10, and the first leg 7a and the second leg 7b that support the case 8, provide a perfect lock that does not loosen during use. This has the effect of making it possible to obtain a temporary locking device.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the device of the present invention installed, Fig. 2 is a front view of the lock used in the invention, Fig. 3 is an internal explanatory view of Fig. 2, and Fig. 4 is the position of the spindle and legs. FIG. 3 is a slope diagram showing the relationship. 1...Indoor side lever handle, 2...Outdoor side lever handle, 3...Indoor side round seat, 4...Outdoor side round seat, 5
...Door, 6...Spindle, 7a...First leg, 7b...
Second leg, 8...Case, 9...Hole, 10...Hub, 1
1a...first sky〓, 11b...second sky〓, 12...
Projecting cam, 13...shaft, 14...intermediate cam, 14a...
First leg of the intermediate cam, 14b...Second leg of the intermediate cam, 15...Retraction piece, 16...Crosshead, 1
7...Latch bolt, 18...Latch head, 19...
Partition wall, 20... Spring, 21... Guide pin, 22... Face plate.

Claims (1)

[Claims] 1. The case 8 is placed around the hole 9 installed in the case 8.
A fan-shaped first cavity 11a and a second cavity 11b are bored through the hole 9, and the intermediate cam 14, which abuts the protruding cam 12 of the hub 10 installed in the hole 9, is attached to the inner wall of the case 8 by the shaft 13. Further, the intermediate cam 14 is inscribed in one end of the retractable piece 15, and the crosshead 1 is attached to the other end of the retractable piece 15.
6.Latch head 18 via latch bolt 17
Connect the latch head 18 and the partition wall 1 inside the case 8.
A spring 20 is tensioned between the spindles 6 and 9, and the spindle 6, which is rotated by the indoor lever handle 1 or the outdoor lever handle 2, is connected to the hub 10.
At the same time, the first leg 7a and the second leg 7b fixed to the indoor round seat 3 fixed to the door 5 or the outdoor round seat 4 are inserted into the first space 11a and the second leg 7b of the case 8, respectively. A temporary locking device for a lever handle formed by fitting and inserting into a second cavity 11b.