JP2525177Y2 - Lock handle for door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial application field) The present invention relates to a lock handle for a door which is attached to a door and whose rotation can be locked by a lock.

(Prior Art) As a lock handle for a door of this type, there is a proposal filed by the present applicant in Japanese Patent Application No. 2-20529. According to this proposal, a shaft having a handle formed at a tip end is rotatably supported by a seat fixed to a door, and a pair of lock pins are moved in a radial direction by rotation of a lock mounted in the shaft. The door is locked by engaging with the receiving seat.

In the configuration according to the above proposal, the front surface of the lock mounted in the shaft is exposed to the outside. For this reason, there is a possibility that dust or water may enter the key hole of the lock and damage the lock.

(Problems to be Solved by the Invention) As described above, in the conventional lock handle for a door, since the front surface of the lock mounted in the shaft is exposed to the outside, dust, water, etc. Could invade and damage the lock.

The present invention has been made in view of the above points, and an object of the present invention is to provide a door lock handle that can prevent dust, water, and the like from entering a key hole of a lock mounted in a shaft. I do.

[Structure of device]

Means for Solving the Problems To achieve the above object, the present invention provides a seat fixed to a door, a shaft rotatably supported by the seat, and an outer side of the door of the shaft. A lock handle for a door comprising a handle integrally formed by bending one end protruding into the shaft at a right angle, and a lock concentrically inserted into the shaft from the front surface, the lock handle being provided on a front end surface of the shaft. A guide plate that is housed in the recess and has an opening formed at the center where the end face of the lock is exposed, and a cue surface formed with a plurality of grooves on the outer surface,
A substantially semicircular notch is provided at the center of the distal end, and both sides are guided by the guide plate and move at right angles to the axial direction of the shaft to open and close the opening. And a holding member for elastically pressing the lid and holding the lid at a predetermined position.

(Operation) According to the above configuration, when unlocking, a finger is pressed against the clue surface, the lid is moved along the guide member, an opening formed in the guide plate is opened, and a key is inserted into the key hole of the lock. Can be unlocked by inserting and rotating. At this time, since the lid is supported by the guide plate at both ends of the lower side and is elastically pressed by the holding member, the movement of the lid is locked and the opening can be kept open. The same operation is performed when locking.

Therefore, the opening of the guide member is covered by the lid except when the lock is unlocked, and the front surface of the lock is not exposed,
It is possible to prevent dust and water from entering the key hole of the lock.

(Example of execution) Hereinafter, one example of the present invention is described with reference to drawings.

1 to 4 show an embodiment of the present invention. Seat 1
Is fixed to the door 2 via a nut 3. A shaft 4 is rotatably inserted into a through hole 1a formed at the center of the seat 1, and a washer is provided at one end protruding inside the door 2.
A stopper 8 is fixed by bolts 9 via 5, 6 and 7. One end of the shaft 4 projecting outward from the seat 1 is bent at a substantially right angle to form a handle 10.

A blind hole 4a is formed concentrically on the end surface of the shaft 4 on the side where the handle 10 is provided, and a lock 11 is rotatably mounted in the blind hole 4a, and the lock 11 moves in the axial direction. Are locked by a retaining ring 12.
A cam member 13 is concentrically fixed to an inner end of the lock 11, and a projection 13a having an oblong cross section is provided on an end surface of the cam member 13 on the door 2 side as shown in FIG. It is provided concentrically protruding.

A pair of lock pins 14 is mounted on the shaft 4 at a position aligned with the projection 13a in the axial direction so as to be slidable in the radial direction. One end on the inner side of the lock pin 14 is in contact with the protrusion 13 of the cam member 13, and one end on the outer side is engageable with a concave portion 1 b formed at a predetermined position on the inner peripheral surface of the seat 1. I have. When the lock 11 is rotated by a predetermined angle with a key, the projection 13a pushes the lock pin 14 outward to engage with the recess 1b of the seat 1, thereby controlling the rotation of the shaft 4 by the handle 10. It is designed to stop.

The entrance 4b of the blind hole 4a of the shaft 4 is enlarged substantially in a rectangular shape as shown in FIG. 3, and the lower side 4c of the entrance 4b has an arc shape protruding inward. A guide plate 15 having a shape matching its inner circumference is fitted into the entrance 4b, and four protrusions 15a provided inside the vicinity of the four corners of the guide plate 15 are formed on an end face 4d of the entrance 4b. The guide plate 15 is fixed to the shaft 4 by being press-fitted into the four concave holes 4e. A circular opening 15b is formed at the center of the guide plate 15, and the end face of the lock 11 is exposed through the opening 15b.
Further, a step portion 15c is formed in parallel on both side surfaces of the guide plate 15, and a through hole 15d is provided in an upper portion.

On the other hand, a lid 16 having a substantially matching shape is movably mounted on the guide plate 15 while being guided by a step 15c formed in a wedge shape. A blind hole 4f is provided in the center of the upper end of the end face 4d on the inlet 4b side of the shaft 4 as shown in FIG. 1, and a pin 18 serving as a holding member is provided in the blind hole 4f via a spring 17. One end is inserted. The head 18a at the other end of the pin 18 projects outward through a through hole 15d provided in the guide plate 15, and the head 18a is pressed against the inside of the lid 16 by the urging force of the spring 17. . A pair of upper and lower recesses 16a and 16b are provided at the center in the width direction of the inner surface of the cover 16, and the head 18a of the pin 18 is engaged with the recess 16a or 16b to cover the cover. 16 is held in the closed or open position. Further, on the lower side of the lid 16, a triangular corrugated surface 16c serving as a clue for lifting the lid 16 upward is formed.

According to this embodiment, at the time of locking and unlocking, the lid 16 is pulled upward by putting a finger on the corrugated surface 16b, and the head 18a of the pin 18 is engaged with the concave hole 16b at the bottom, so that the lid 16 Can be held. In this state, the opening 15b of the guide plate 15 is open as shown in FIG. 5, and the key can be inserted into the lock 11 to lock or unlock. In a normal state, the lid 16 is lowered as shown in FIG.
By engaging the opening 18a with the upper recess 16a and sealing the opening 15b, it is possible to prevent dust and water from entering the lock 11. FIG. 7 is a sectional view taken along the line AA of FIG. 6 when the lid 16 is pulled down.

The door lock handle to which the present invention is applied is not limited to the one shown in the above embodiment, and the same effect can be obtained by applying the present invention to another door lock handle.

[Effect of the invention]

As described above, according to the present invention, since the end face of the lock inserted into the shaft of the door lock handle is covered with the lid, it is possible to prevent dust and water from entering the lock. In addition, damage to the lock can be reduced.
Further, the guide plate is housed in a concave portion provided on the front end surface of the shaft, and has a clue surface in which a plurality of grooves are formed on the outer surface of the lid, so that the lid is not pulled up normally. In the state, since there is provided such a lid, there is no thing which especially projects from the shaft surface. For this reason,
Excellent in safety and appearance.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing the structure of an embodiment of the present invention, FIG.
FIG. 3 is a front view, FIG. 3 is an exploded perspective view, FIG. 4 is a perspective view showing a shaft and a cam member, and FIGS. 5 and 6 are perspective views showing a lid open and closed state, respectively. FIG. 7 is a sectional view taken along line AA of FIG. 1 ... seat, 2 ... door 4 ... shaft, 10 ... handle 11 ... lock, 15 ... guide plate 15b ... opening, 16 ... lid 18 ... pin

Claims (1)

(57) [Scope of request for utility model registration] A seat fixed to a door, a shaft rotatably supported by the seat, and a handle integrally formed by bending one end of the shaft protruding outside the door at a right angle. And a lock handle for a door comprising a lock concentrically inserted from the front into the shaft, housed in a recess provided on the front end face of the shaft,
A guide plate having an opening at which the end face of the lock is exposed at the center, a clue surface having a plurality of grooves formed at the outer surface, and a substantially semicircular notch provided at the center of the tip. A lid body guided on both sides by the guide plate and moved at right angles to the axial direction of the shaft to open and close the opening; and a predetermined position provided on the shaft by elastically pressing the lid body. A lock member for holding the door.