KR920003005Y1 - Door lock having lever handles - Google Patents

Abstract

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Description

Shaft reinforcement device for lever handle door lock

1 is a perspective view of main parts of the present invention.

2 is a front exploded view of the shaft of the present invention.

Figure 3 is an enlarged perspective view of the shaft tube end side of the present invention.

* Explanation of symbols for main parts of the drawings

1, 2: fixed plate 3: inner cylinder

4: slide 5, 6: shaft

7, 8: drive guide 9: required

10: interpolation period 11: ruled paper

12, 13: stepped jaw 14: inner cylinder support plate

15: hanging paper 16, 17: steering wheel

The present invention relates to a shaft lever reinforcement device of a conventional lever handle type door lock, which is a L-shaped lever type without forming a handle in a round spherical body.

In general, the locking device of the door lock turns the shaft tube of the handle on both sides, and the driving tongue formed by bending on the inner end side of the shaft tube causes the slide holding the locking pin to be released into the storage chamber of the inner cylinder. In this conventional structure, the driving force for transmitting the rotational electric force of the shaft tube to the slide is dependent only on the tongue piece on the inner end side of the shaft tube, which leads to the following problems.

That is, when the structure of the handle has a circular structure, the driving force of the handle is hardly transmitted to the violent impact momentarily, so there is no fear of failure such as damage to the built-in device of the door lock, that is, the driving tongue. Is a non-circular L-shaped lever type, the pressure on the handle becomes very large, and sometimes an excessive force on the handle itself may occur.

In this case, if the rotational control function of the shaft tube is not added and it is merely a sliding structure of the driving tongue and the slide as in the related art, when excessive pressure is applied to the handle, the driving tongue that hangs on the slide is likely to be twisted or broken. Frequent breakdown of the door lock and disengagement of the lock state resulted in the extremely low safety effect of the locking device.

The present invention focuses on this conventional problem, and the driving tongue effectively performs only the role of driving the slide to open and close the door, and if an excessive rotational force is applied to the shaft by the rotation of the handle, a separate shaft crown reinforcement device does this. By defending to solve the closed end of the built-in device of the door lock itself is described in detail by the accompanying drawings as follows.

Around the inner cylinder (3) of the door lock coupled to the support plate 13, the fixing plate (1), (2) is folded on both sides, and one side is a shaft pipe (5) is built up with the L-shaped handle (16) On the opposite side, the shaft tube 6, on which the L-shaped handle 16 is mounted, is also pivotally rotated inside the support plate 12, and on the inner end of the shaft tubes 5, 6, tongue pieces 7, 8 are provided. In the conventional door lock device wherein the tongue pieces 7 and 8 are bent outward so that the slider 4 is pushed back and forth in the 90-degree direction, the door locking device of the door is pushed back and forth. Indentation recesses 5 'and 6' are formed on the inner end side of the inner end side to form stepped jaws 12 and 12 ', respectively. Into the groove (9) concave at the bottom of the () is inserted into the hanging piece 11 installed on one side of the interlocking section 10, the stepped jaw 12 in the hanging piece 11 has exceeded a certain allowable rotation angle End of the other shaft shaft 6 The jaw (13) is to be suspended when a predetermined allowable rotation angle is also exceeded in the ruled piece (15) protruding on the inner side of the support plate (14) to limit the rotation of both shaft tubes (5) and (6) at a certain limit. I would have to.

The present invention as described above is driven by rotating the handle 16, 17, the shaft tube (5), (6) connected to it is rotated and the drive tongue (7) formed bent at the front end side of these shaft tube (5), (6) , (8) is to retract the slide (4) to open and close the door, the present invention is the stepped jaw (12), (13) and hanging piece (11), (15) of each shaft tube (5), (6) Rotation of shafts 5 and 6 is allowed only up to a certain allowable rotation angle θ as shown in FIG. 2, and when the rotational force is greater than that, the stage inputs 12, ( 13) is caught by the hanging piece (11), (15) to prevent further rotation of the shaft tube.

This effect causes the driving tongues 7 and 8 to perform only the important chain and unlocking functions for opening and closing the slide 4, and the excessive rotational force applied to the heavy load, that is, the handles 16 and 17, is By enclosing it in the defense means of the stepped jaws 12, 13 and the hanging piece 11, 15, the locking device of the door lock is firmly secured and the safety is sufficiently secured, and the reliability of the door handle of the lever handle type is highly reliable. The result is a marked practical effect.

Claims (1)

In a conventional door lock device in which drive tongues (7) and (8), which are bent at the inner end side of the shaft tubes (5) and (6) of the lever-type handles (16) and (17), reciprocate the slide (4), And the stepped protrusions 12 and 13 are formed on the inner end side of the shaft tubes 5 and 6 so that these stepped protrusions 12 and 13 protrude from the interlocking rod 10 and the support plate 14. A shaft tube reinforcement device of a lever handle type door lock, characterized in that the pieces (11), (15) within a certain rotation angle range.