JP2006328713A - Handle storage mechanism of lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handle of a lock used for a door to draw a latch bolt, less projected from a door face, hard to be struck against an object, not broken even if an object is struck against it, and easily usable by solving problems in a conventional handle lock wherein the handle of a lock with less dimension of projection from a door face for easy use is absent, the handle is difficult to operate in a case handle used for a fire door, fingers get pain during the operation, a handle with less dimension of projection is difficult to operate, and a handle for a partition door in a passage may break a serving vehicle even if the dimension of projection is small. <P>SOLUTION: A foldable shaft is formed on the handle shaft of a lock, and a handle pocket storing a handle is formed in the decorative seat of the lock. The projected amount of the handle from the door face is reduced by folding and storing the handle in the handle pocket. Since the handle is protected by the decorative seat, even if an object hits the handle, the handle is not broken. Thus, a handle storage mechanism of a lock easily usable when the handle is opened to a horizontal position can be provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

    The present invention relates to a technique for folding a lock handle and storing it in a dressing seat to eliminate the protrusion.

As shown in FIG. 7, the case handle can be seen on the folding handle of the lock.
The case handle is always attached to a fire door that is open, and when the door is opened and the door is stored in a door pocket, the handle does not hit the wall and is used so that the handle does not protrude toward the passage.
The Bulacan (34), which is the handle of the case handle, is lowered by its own weight and stored in the Bulacan case (33).
When using, pull out the Bulacan (34) from the Bulacan case (33) and turn the Bulacan.

Other locks that do not protrude from the handle include a door lock, but these do not fold the handle.
There is no foldable handle other than the case handle, and there is no foldable handle.
Miwa Rock Co., Ltd. 2004 general catalog P.M. 284 lower right photo

The handle of the lock and the protrusion from a part of the door surface often become a problem.
One of them is a normally open fire door facing the passage. Conventionally, a case handle is attached, but the case handle is difficult to pull out due to its small handle and is difficult to operate.
Also, the case handle is turned by putting a finger on the inner circumference of the semi-circular handle, and the finger hurts because it is pulled, so no force is applied.

The door that divides the passage often hits the handle when a trolley or trolley passes, and often sees the handle damaged.
With the handle of the lock used in such a door, the door is opened larger to secure the passage width, and the lock that does not interfere with the handle has never been seen.

It is usually difficult to operate with a lock handle that pulls in a latch bolt to lock the door and pulls or pushes the door to open the door, with the handle protruding and the handle small. In addition, they have only a small probability that the handle will collide, and if they collide, they usually break.

    From the above, it is easy to operate with a large handle, the protrusion from the door surface is small, it is difficult to catch objects on the handle, objects do not collide, and the lock handle is not damaged even if it collides. Is an issue.

In order to use a handle that is a large handle and reduce the protrusion from the door surface, it can be considered that the handle is bent from the base of the handle shaft. In order to further reduce the protrusion in the folded state, the handle should be made thinner.
However, even if the ledge is small, the probability that an object will hit the handle is reduced. It is necessary to ensure that the handle does not break even if an object hits the handle, or that the handle does not hit the handle.

You can't make a handle that won't break even if it hits the handle.
For that purpose, the handle can be protected with the handle folded, and it can be considered that objects do not hit the handle.
The rest is to secure the handle and structural strength, and to improve usability.

The lock handle storage mechanism of the present invention has been realized by the above-described concept.
The mechanism will be described with reference to FIGS.
First, this mechanism is characterized by using a combination of a handle (8) that can be bent at the handle shaft (7) and a decorative seat (5) having a handle pocket (6) for storing the bent handle. . By folding the handle, the protrusion of the handle is reduced, and by storing the handle in the handle pocket of the dressing seat, the handle is protected by the dressing seat, and an object is prevented from colliding with the handle.

Although it is possible to hit an object on the dressing seat or handle from the front side of the dressing seat with the handle stored in the handle pocket, there are few such cases in actual use, assuming that you hit the handle from the front side There is little damage to the handle.
In the figure, it is possible to hit an object on the handle from the top to the bottom of the dressing seat.
However, in reality, it is rare to hit an object on the handle from above, and even if it hits the upper corner of the toilet seat (5), the handle is rarely damaged.

The structure of the lock handle storage mechanism of the invention will be described.
The handle shaft (7), which is the base of the handle of the lock, is provided with a folding shaft (13) oriented horizontally in the direction perpendicular to the direction of the handle shaft core (12). The handle (8) bends about the folding shaft, and the handle can be moved horizontally by 90 degrees upward. By combining the handle with the handle shaft as illustrated, the handle does not drop below the horizontal direction, and sufficient strength can be ensured even when a strong force is applied to the handle. FIG. 4B is shown painted black for easy understanding of the dressing seat.

When the handle is leveled, the handle hangs down in the direction of turning the handle due to its own weight. It is the handle return spring (17) that returns it to the horizontal position, which is a fixed position.
The handle return spring can be assembled not to the handle side but to the latch cam (16) in the lock case. However, in that case, the lock case (15) needs to be a lock case having a dedicated handle return spring.
If it is assembled to the handle as shown in the figure, this handle can be assembled to many types of lock cases.

The decorative seat (5) combined with the folding handle is provided with a handle pocket (6) for storing the handle when the handle is turned 90 degrees upward.
In the figure, a stop ball (14) having a holding spring (18) is provided in order to hold the state in which the handle is stored in the handle pocket.
If the handle fold is to be made smaller with the handle folded, the handle thickness (23) may be reduced. If the handle width (24) is widened as much as the thickness is reduced, it is unlikely that the handle will be difficult to grip.

By turning the handle (8) upward 90 degrees and folding it, and storing it in the handle pocket (6) of the dressing seat (5), the handle is protected by the dressing seat and it is possible to prevent objects from colliding with the handle.
The handle (8) should fit within the thickness (22) of the dressing seat (5) and should not stick out of the dressing seat, but it will either protrude slightly from the dressing seat or hit the handle. Damage to the handle can be reduced.

Conventionally, there is no easy-to-use handle for a lock handle used for a normally open fire door or a passage partition door. The case handle was difficult to operate and difficult to use.
When the handle protrudes from the door surface, the door cannot be opened to the wall surface, and the width of the passage cannot be secured.
When the handle is on a business trip from the door surface, there is a problem that an object is hit against the handle while the door is fixed and the body is hooked on the handle. Even if the ledge was small, there was a problem that the handle was hit and the handle was broken.

    By utilizing the handle storage mechanism of the present invention for such a door, if the handle is pulled out to a horizontal position when it is necessary to operate the lock, it is easy to operate the lock with a large handle, and when the handle is obstructed, By folding the handle, the protrusion of the handle is reduced. By storing the folded handle in the dressing seat, it is a safe and easy-to-use lock handle that does not damage the handle.

The lock handle storage mechanism of the present invention is used for the purpose of reducing the protrusion of the lock handle from the door surface and eliminating the object from hitting or hooking the handle.
On top of that, it is easy to operate the lock, and the handle is not broken even if it strikes it.

The use of a lock having a lock handle storage mechanism will be described with reference to FIGS.
The handle is a tool for retracting the latch bolt (4) and pulling or pushing the door to open it. The attachment to the door is performed as shown in FIG.
FIG. 1 shows that the handle (8) is raised and stored in the handle pocket (6) of the dressing seat (5). In this state, in the drawing, the handle (8) is accommodated within the thickness of the dressing seat (5) and does not protrude from the dressing seat surface.

If the door is opened in the state shown in FIG. 1, the handle and the decorative seat project from the door surface are small, so that the door can be fully opened to the wall surface, and the passage width in front of the door can be ensured.
The handle is housed in the dressing seat so that the body of a person passing through the passage is not caught on the handle.
Even if a layout car passes through the aisle, it is unlikely to hit the dressing seat due to the small protrusion, and even if it hits the handle, the handle is protected by the dressing seat and will not break.

    The handle is stored in the handle pocket (6) by turning up the folding shaft (13) provided on the handle shaft (7). The stored handle is held by a stop ball (14).

In using the handle storing mechanism of the present invention, attention will be described.
In the case of the structure shown in the figure, the structure of the latch cam (16) that retracts the latch bolt (4) in response to the movement of the handle shaft core (12) must be such that the left and right handles rotate independently. Otherwise, the handle cannot be turned when one of the handles is stored, and the door cannot be opened.
Alternatively, when the handle is pulled out from the handle pocket, the other handle must automatically come out of the handle pocket.

When operating the lock, if the handle is pulled out by placing a finger on the upper end of the stored handle (8), the handle will be in the horizontal position. The handle is not lowered further by the structure shown. After that, as with the operation of the conventional lever handle lock, turning the handle downward pulls the latch bolt and opens the door.
By adopting the handle shape and size of a conventional lever handle lock, the handle can be easily gripped and used.

If the handle hits an object in a horizontal position, the handle will be destroyed like a conventional handle.
To do so, it is necessary to store the handle in the handle pocket when something seems to be dangerous.

It is the perspective view which attached the lock | rock with the handle storage function of the lock | rock of an invention to the door, and accommodated the handle | steering-wheel. It is the figure which opened the door of FIG. 1 to the wall and looked down from the top. It is the figure which looked at FIG. 1 from the door front side. A. 3 shows that the handle is stored in the handle pocket at the position A cross section of FIG. B. The handle is pulled out of the handle pocket and shown to open horizontally. It is the figure which looked at FIG. 4B from the door front side. A. Fig. 6 shows a cross-section at position B in Fig. 5. B. Fig. 6 shows a cross-section at position C in Fig. 5. C. Fig. 6 shows a cross-section at position D in Fig. 5. It is a perspective view of the conventional case handle.

Explanation of symbols

1 Door 2 Center of Door Thickness 3 Lock Front 4 Latch Bolt 5 Dressing Seat 6 Handle Pocket 7 Handle Shaft 8 Handle 9 Suspension Side Frame 10 Hinge 11 Wall 12 Handle Shaft Core 13 Folding Shaft 14 Stop Ball 15 Lock Case 16 Latch cam 17 Handle return spring 18 Holding spring 19 Handle horizontal position 20 Mounting bar 21 Mounting screw 22 Dressing seat thickness 23 Thickness 24 Width 31 Fire door 32 Latch bolt 33 Bulacan case 34 Bulacan

Claims (1)

A handle pocket (6) for storing a handle (8), which is a handle of the lock, is provided in the lock seat (5), and the handle shaft core (12) is oriented on the handle shaft (7) of the lock handle (8). Folding shaft (13) that intersects at right angles with the horizontal direction, assembles the handle on the dressing seat, folds the handle upward, and when it is stored in the handle pocket, the handle fits in the handle pocket, When operating the handle, when the handle is pulled out of the handle pocket, the handle becomes horizontal and the same operation as a conventional lock handle is possible.