JPH083647Y2 - Lock device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device attached to, for example, a rotating door or a sliding door of a store.

[0002]

2. Description of the Related Art Conventionally, locking and unlocking of single-opening or double-opening revolving doors and sliding doors of a store or the like has been performed by a cylinder from the outside and a thumb turn from the inside.

[0003]

[Problems to be solved by the invention] Since the length of revolving doors and sliding doors in a store is extremely large, if the locks are attached to the upper and lower frames of the revolving door, the locks on the upper frame side are operated. It requires a stepladder to lock the lower frame only. For this reason, there is a problem that the upper frame side is not held at the time of locking and it is easily opened.

There is also a problem that theft must be prevented by the shutter.

Therefore, an object of the present invention is to provide a locking device in which when the lower frame side of a revolving door or a sliding door is locked, the upper frame side is also locked.

[0006]

In order to solve the above problems, the present invention provides a lock for retracting a lock piece by operating a cylinder or thumb turn on a lower frame of a revolving door or a sliding door, and
In a lock device provided with an engagement receiving metal fitting for the protruding lock piece on the floor surface, a projection piece that is rotated by the operation of the cylinder or thumb turn is provided in front of the lock, and the lock door or the sliding door An ascending / descending rod is installed between the upper part of the projecting piece and the upper frame surface of the revolving door or the sliding door, and a restoring force in the descending direction is given to this rod. Is provided with a bar with which the projecting piece and the lower end contact each other when rotating in the ascending direction, and an engagement receiving metal fitting of a lock member provided with the upper end of the rod on the upper frame surface of the door frame. It was done.

[0007]

When the lock piece is projected by the operation of the cylinder or thumb turn and locked by the engagement of the lock piece and the receiving metal fitting, the protruding piece rotating in the ascending direction and the lower end of the bar come into contact with each other so that the rod together with the rod. And the lock member is engaged with the metal fitting.

Further, when the projection piece rotates in the descending direction upon unlocking, the pushing up of the bar is released, so that the rod descends due to the applied restoring force. Therefore, the lock member is disengaged from the receiving fitting.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, a lock having a lock piece 4 which is retracted by operating the cylinder 2 or thumb turn 3 is incorporated in the lower frame of the revolving door or the sliding door 1.

As shown in FIG. 5, when the lock piece 4 is retracted by operating the cylinder 2 or the thumb turn 3, the outer projection 6 of the rotating body 5 is rotated when a key is inserted into the cylinder 2 and rotated. Since the pinion 7 having the notch 6'to be fitted rotates, the rack 8 meshing with the pinion 7 slides.

When the rack 8 slides, the rocking plate 10 having the teeth 9 that mesh with the rack 8 rotates about the pin 11 as a fulcrum, so that the long hole 12 of the lock piece 4 and the pin 13 of the rocking plate 10 fit together. Although the lock piece 4 is slid in the projecting direction by the engagement, the lock piece 4 may be retracted by a method other than the above.

Reference numeral 14 is a receiving metal fitting for engaging the lock piece 4 provided on the floor surface.

Further, the rotating body 5 has a protrusion 1 that rotates together with it.
5 are provided.

As shown in FIG. 4, the projecting piece 15 projects from the outer periphery of the annular plate 16 and is located outside the rotating body 5 in the annular plate 1.
A notch 1 provided on the inner circumference of the annular plate 16 by fitting 6
7 and the projection 6 are fitted together to rotate together. The annular plate 16 is prevented from coming off by an annular plate 18 which is screwed to the end surface of the cylinder 2.

Further, a rod 19 which can be raised and lowered is installed between the upper part of the revolving door and the sliding door 1 and the upper frame surface of the projecting piece 15 in the revolving door 1 and the descending direction of the rod 19 is restored. Power is given.

At the lower end of the rod 19, the upper end of the bar 20 whose lower edge is in contact with the tip of the projecting piece 15 is attached.

Further, a lock member 21 is provided on the upper end of the rod 19, and the lock member 21 is fitted and engaged with a receiving metal fitting 23 provided on the upper frame of the door frame 22 when the rod 19 is raised.

In the figure, 24 is a spring for giving a restoring force to the rod 19, 25 is a fitting for attaching the bar 20 to the lower end of the rod 19, 26 is a guide rod penetrating the hole 27 of the fitting 25, and 28 is a locking member 21. Is a guide.

With the above construction, when the lock piece 4 is projected by the operation of the cylinder 2 or thumb turn 3 and locked by the engagement of the lock piece 4 and the receiving metal fitting 14, the lock piece 4 rotates in the ascending direction with the locking. As the rod 19 is raised together with the bar 20 by the protruding piece 15 that moves, the lock member 21
Is engaged and locked.

When the lock piece 4 is immersed and unlocked,
Since the pushing up of the bar 20 by the projecting piece 15 is released, the locking member 21 descends together with the rod 19 by the applied restoring force,
Unlock.

[0022]

As described above, according to the lock device of the present invention, when the locking and unlocking operations are performed on the lower frame side of the revolving door or the sliding door,
By raising or lowering the lock member together with the rod, the upper frame side of the revolving door or the sliding door can be locked and unlocked at the same time.

Therefore, the number of operating points is one, and even if the length of the revolving door or the sliding door is large, the upper and lower frame portions can be locked to eliminate the inconvenience caused by locking only the lower frame side.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a vertical sectional front view showing the main part of the same.

[Fig. 3] Side view of the same section

FIG. 4 is an exploded front view of the main part.

FIG. 5 is a vertical sectional front view of the lock.

[Explanation of symbols]

 1 Revolving Door, Sliding Door 2 Cylinder 3 Thumb Turn 4 Locking Piece 5 Rotating Body 6 Projection 6'Notch 7 Pinion 8 Rack 9 Teeth 10 Swing Plate 11, 13 Pin 12 Long Hole 14 Receiving Metal Fitting 15 Projecting Piece 16 Annular Plate 17 Cutting Notch 19 Rod 20 Bar 21 Locking member 22 Door frame 23 Receiving metal fitting 24 Spring

Claims (1)

[Scope of utility model registration request] 1. A lock device comprising a lock for retracting a lock piece by operating a cylinder or a thumb turn on a lower frame of a revolving door or a sliding door, and an engagement receiving metal fitting for the protruding lock piece on a floor surface. The lock is provided with a projecting piece that is rotated by the operation of the cylinder or thumb turn, and can be lifted and lowered between directly above the projecting piece in the revolving door or the sliding door and the upper frame surface of the revolving door or the sliding door. Incorporating such a rod, imparting a restoring force in the descending direction to this rod, and further providing a bar at the lower end of the rod with which the projecting piece and the lower end abut when the projecting piece rotates in the ascending direction with locking, Further, the lock device is characterized in that an engagement receiving metal fitting of a lock member provided with an upper end of the rod is provided on an upper frame surface of the door frame.