JP2008057208A - Action bolt mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize an action bolt operated by a light door closing force by solving a problem in conventional action bolts wherein since it is installed in a lock case and any function is started according to the opening or closing of a door, it resists when the door is closed and the door is difficult to close. <P>SOLUTION: This action bolt mechanism is realized by rotatably assembling an action bolt 7 into a bolt case 12 so that both the rotation of the action bolt and the drawing of the bolt case are allowed when a door is closed and the door can be opened even if the door is erroneously closed and the action bolt is inserted into an opening formed when a lock receiver is unlocked. A roller is assembled onto the rear surface of the action bolt to reduced the resistance between the rear surface of the action bolt and the lock front and the lock case 1 when the door is closed. Consequently, the action bolt mechanism capable of easily closing the door can be realized. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

This is a technology for activating some function of locks and switches when the door is opened or closed in accordance with the opening and closing of the door.

Some locks are called trigger bolts. This is also a kind of action bolt. Explain the trigger bolt.
Used to protrude the latch bolt to match the door closing.
Used to fix the latch bolt protruding in accordance with the door closing.
A latch bolt that protrudes longer when the door is closed.
A dead bolt that automatically projects when the door is closed.
As described above, the trigger bolt is used to activate some action of the lock according to the closing of the door. Or it is used to activate some action when the door opens.

In addition to the lock, the action bolt is used to turn on and off the switch according to the opening and closing of the door, and to activate some action according to the opening and closing of the door. 9 and 10 show a general mechanism of the action bolt. Although FIG. 9 shows that the protruding dimension (55) of the action bolt (51) can be secured for a long time, the resistance when the action bolt is retracted when the door is closed is large, and the lock bolt is combined with one lock. There is a problem that the door is difficult to close when used.
Another big problem is that the door cannot be opened if the lock bolt is installed in the wrong position and the action bolt enters the lock receiving hole.
If the door is accidentally closed when the lock holder is removed from the frame, the action bolt enters the opening (60) for attaching the lock holder, and the door cannot be opened. This is because many action bolts and trigger bolts do not have a function to turn the handle and retract. There is no problem if there is a function that can be pulled in by turning the handle. This state is shown in FIG. 11C.

FIG. 11A shows how the force is applied when the action bolt shown in FIG. 9 is retracted. In general, the force (59) for bending the action bolt is more often applied than the retracting force (62) due to the angle relationship of the tapered surface (52), and the retraction resistance of the action bolt is large. If the door is strongly closed without the action bolt being pulled, the state shown in FIG. 11B is obtained.
The shape and movement of this action bolt is similar to a latch bolt.
The difference from the latch bolt is that it is not necessary to turn the handle to retract the action bolt and not to lock the door.

The action bolt shown in FIG. 10 is provided with tapered surfaces on both sides in the door opening direction and the door closing direction.
The reason why the tapered surfaces are provided on both sides is to prevent the action bolt from being pulled in if the door is opened even if the state shown in FIG.
On the other hand, when the protrusion dimension (55) is reduced and the dust dimension between the door tip and the door frame is increased, the action bolt is not pulled in even when the door is closed.
In double doors, the dust size between the doors is often about 8 millimeters, and if the protruding size is small, the reliability of operation cannot be ensured.
JP2005-16165

The problems of the conventional action bolt are as indicated by 0003 to 0005.
In order to solve these problems, it is necessary to ensure a long protruding dimension, to retract the action bolt even when the door is lightly closed, and to prevent the action bolt from becoming a resistance when the door is closed.
In addition, it is necessary to be able to open the door even when the action bolt enters the receiving hole of the lock holder or enters the opening when the lock holder is removed.

The properties required for action bolts are as follows.
The action bolt does not need the function of locking the door.
The action bolt does not need to be retracted by turning the handle.
The action bolt does not have any element that requires a large force if it is smoothly retracted when the door is opened and closed, and does not require a high strength.
The action bolt can be used to reliably convey that the door has been opened or closed.
The action bolt mechanism of the present invention has been considered under the above conditions.

The mechanism of the action bolt according to claim 1 will be described with reference to FIGS.
FIG. 1 is a perspective view of a lock case provided with the mechanism.
FIG. 2 is a perspective view of the action bolt unit removed from FIG.
FIG. 3 is a perspective view showing the parts by disassembling the action bolt unit of FIG. 2.
FIG. 4A shows a state where the action bolt (7) protrudes in the open state in the action bolt position horizontal section of FIG.
FIG. 4B shows a state where only the action bolt (7) is rotated and retracted, and in this state, the action bar (14) protrudes.
FIG. 4C shows a state where the action bolt (7) is pushed in without rotating, and the action bar (14) protrudes in this state.

In the action bolt mechanism according to claim 1, the action bolt (7) is rotatably assembled to the bolt case (12), and the bolt case itself can be slid into the lock case (1). . Therefore, even if only the action bolt rotates without moving the bolt case, or conversely, even if the bolt case is retracted without rotating the action bolt, the action bar (14) is similarly projected.
FIG. 4D shows a state where the lock case of FIG. 1 is attached to the door and the door is closed.
The standard of the Chile dimension (23) of the door tip when the single door is suspended from the frame is 3 millimeters.
FIG. 4D shows that both the rotation of the action bolt (7) and the slide of the bolt case (12) are actuated simultaneously to project the action bar (14). This mechanism is characterized in that both movement of the action bolt and sliding of the bolt case are possible.

The mechanism according to claim 1 is a light door closing force, and a mechanism for drawing the action bolt without applying a bending force will be described with reference to FIGS.
When the door is closed as shown in FIG. 11A, a force for bending the action bolt is applied to the action bolt as shown in FIG. 11B. The retracting force (62) is smaller than the bending force (59), and the conventional action bolt shown in FIG. 11 has poor retracting efficiency. In contrast, in the action bolt according to claim 1 shown in FIG. 4, the bending force and the retracting force applied to the action bolt all become the force pushing the action bar (14), and the force for pushing out the action bar. Therefore, the resistance when closing the door is small.

About the protrusion dimension (32) of the action bolt (7) in FIG. 4A, depending on the thickness of the lock case (1) and the thickness of the box plate of the lock case, an protrusion dimension of about 12 to 14 millimeters can be obtained. Is possible.

The state when the action bolt in the state shown in FIG. 11C enters the opening when the lock receiving hole or the lock receiver is removed will be described with reference to FIGS. 4A and 4C.
Even if the rotating action bolt shown in FIG. 4 is used, it is difficult to open the door because the R surface (9) is hooked when trying to open the door, but instead the force retracted into the action bolt acts. Therefore, if the door is opened, the bolt case (12) can be pulled in and the door can be opened without turning the action bolt as shown in FIG. 4C.

The action bolt mechanism according to claim 1 is capable of closing the door with a light closing force as described above, ensuring a necessary protruding dimension, obtaining a strong protruding force of the action bar, and reliably activating the connected function. Is possible.
At the same time, even if the action bolt enters the lock receiving hole or the opening from which the lock is removed, the door can be opened and the mechanism can solve all of the problems.

The action bolt mechanism according to claim 2 will be described.
The conventional action bolt shown in FIG. 11 has the same shape and movement as the conventional latch bolt.
The difference is that the action bolt does not require the door to be locked, does not need to be turned and turned, and activates the connected function.
Therefore, if the door is smoothly retracted when closing the door, no strong force is applied.
That is what I made.

Based on FIG. 7, the action bolt structure according to claim 2 will be described. The structure is such that an action bolt (41) is provided with a roller shaft (44), and the roller (45) is assembled to the roller shaft so as to protrude slightly (46) in the direction of the back surface (43) of the action bolt.
The mechanism is that when the door is closed in the state of FIG. 9A, the action bolt (51) and the lock case front (2) and the lock case (1) do not touch directly, but the roller and the lock case front and the lock case touch. When the action bolt is retracted, the resistance is reduced to make it easier to retract.
By making it easy to retract, it is possible to prevent a large bending force from being applied to the action bolt as shown in FIG. 9B.

The action bolt according to the second aspect of the present invention can be easily pulled in at the same time by reducing the resistance at the time of sliding, and at the same time, can be easily pushed out, and the force of the spring (13) can be weakened accordingly. If the spring force is weak, the force required to close the door will be weak.
The action bolt according to the second aspect of the present invention has a long protruding dimension (55) similar to that of the conventional action bolt shown in FIG.
However, it is the same as the conventional action bolt that the door cannot be opened when the action bolt enters the lock receiving hole or the opening from which the lock is removed when the door is closed.
Reducing the action bolt's pull-in resistance reduces the force to bend the action bolt when the door is closed, and the action bolt's strength can be reduced accordingly, making the action bolt lighter and weakening the action bolt's spring. It is also possible. Therefore, the resistance at the time of closing the door can be reduced.

The trigger bolt that is assembled to the lock case and activates some function according to the opening or closing of the door, or the action bolt mechanism used for door switches, etc., has the problem that the door is difficult to close by the trigger bolt or action bolt. there were.
When trigger bolts and action bolts are used together with latch bolts, it is normal that both are added and the door is more difficult to close. There was a request to think about the mechanism of the trigger bolt and action bolt that can close the door with a light closing force. Therefore, the present invention realizes a trigger bolt and an action bolt that can close the door with a light closing force.

A mechanism capable of closing the door with an extremely small closing force using the action bolt according to claim 1 will be described with reference to FIG.
FIG. 5 shows an action bolt that is used in a mechanism that locks the latch bolt at a position where the latch bolt is retracted when the door is open, unlocks the latch bolt in accordance with the closed door, and projects the latch bolt. Since the latch bolt is retracted to the door, no force is required to retract the latch bolt when the door is closed. All that is required is the force to turn the action bolt to close the door.
The mechanism for locking the latch bolt with the action bolt is not a new mechanism and has been rarely seen in the past. The meaning of FIG. 5 is that the door can be closed with a lighter force by using the action bolt mechanism of claim 1 in addition to the conventional mechanism.

The mechanism of FIG. 5 will be specifically described.
When the door is opened, the handle is turned to move the latch cam (19), and when the latch bolt (4) is retracted, the latch bolt stopper (29) is caught by the locking bar (27), and the latch bolt is engaged at the retracted position. Stopped.
Thereafter, the latch bolt does not protrude until the door is closed and the action bolt is activated. Therefore, the force required to retract the latch bolt is not necessary.
When the door is closed, the action bolt (7) hits the lock receiver (21) and rotates and retracts, the action bar (14) protrudes, the action bar pushes the release bar (26), and the locking bar (27) latches The latch bolt (4) protrudes from the bolt stopper (29).
When the latch bolt protrudes, the latch bolt hits the lock, and the latch bolt slides on the surface of the lock according to the closing of the door, and enters the receiving hole to lock the door.

The force required for closing the door at this time is a force for retracting the action bolt and a force for sliding the latch bolt on the lock. The resistance when the latch bolt slides on the lock receiver is small, so the actual force required is only the force that retracts the action bolt.
By using the action bolt mechanism according to claim 1 to activate this mechanism, the action bolt (7) rotates when the door is closed and the action bolt does not slide, so there is no bending force and slide resistance, and the conventional action The mechanism can be activated with a light closing force compared to bolts.

FIG. 8 shows a mechanism for locking the latch bolt using the action bolt mechanism according to claim 2, releasing the lock in accordance with the closing door, and protruding the latch bolt.
Even with the action bolt according to the second aspect, the door can be closed with a smaller closing force than the conventional action bolt.

  FIG. 6 is an embodiment showing that the action bolt according to claim 1 is used to activate the switch in accordance with the closing of the door. In this case as well, the switch can be activated by moving the action bolt with a door closing force smaller than that of the conventional action bolt.

It is a perspective view of a lock case with the action bolt mechanism according to claim 1. It is a perspective view of an action bolt unit. It is a perspective view of each component which decomposed | disassembled the action bolt unit. A The action bolt position horizontal cross section of the state which attached the lock | rock of FIG. 1 to the door is shown. B Shows from Figure A that the action bolt has rotated to protrude the action bar. C Indicates that the action bolt did not rotate and the bolt case was retracted to protrude the action bar. D Indicates that the action bar hits the lock and rotates when the door is closed, and that the bolt case is retracted to protrude the action bar. FIG. 4A shows the state of FIG. 4A in the longitudinal section of FIG. 1, and shows a state where the latch bolt is retracted and locked. 4B shows the state of FIG. 4D in which the door is closed, the action bolt is pushed, and the latch bolt is unlocked and protrudes. The door is closed and the action bolt activates the switch. A A horizontal sectional structure of the action bolt mechanism according to claim 2 is shown. B Retracts the action bolt, indicating that the action bar protrudes. A shows the longitudinal cross-sectional structure of FIG. 7A and shows a state in which the latch bolt is retracted and locked. B Indicates that the action bolt is retracted when the door is closed and the latch bolt is unlocked and protrudes. A shows a horizontal cross-sectional structure of an action bolt having a tapered surface only on the conventional front side. B Shows the state where the action bolt is retracted when the door is closed. The conventional action bolt which has a taper surface on both the front side and back side of an action bolt is shown. A shows the force applied when the door of the action bolt of FIG. 9 is closed. B Indicates the state when the action bolt is not retracted. C Remove the lock holder, close the door, and indicate that the action bolt has entered the lock holder opening.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lock case 2 Lock case front 3 Dead bolt 4 Latch bolt 5 Back surface 6 Screw counterbore 7 Action bolt 8 Front surface 9 R surface 10 Stopper 11 Bolt shaft 12 Bolt case 13 Spring 14 Action bar 15 Bolt shaft hole 16 Action bar base 17 Action bar shaft 18 Cylinder assembly hole 19 Latch cam 20 Handle bearing hole 21 Lock receiving 22 Door frame 23 Chile size 24 Door 25 Shaft 26 Release bar 27 Locking bar 28 Locking spring 29 Stopper 30 Lock receiving 31 Switch 32 Projection size 41 Action bolt 42 Tapered surface 43 Back surface 44 Roller shaft 45 Roller 46 Protrusion 51 Action bolt 52 Tapered surface 53 Back surface 54 Touching portion 55 Protrusion dimension 56 Action bolt 57 Taper angle 58 Contact part 59 Bending force 60 Opening 61 Lock receiving attachment position 62 Retracting force

Claims (2)

An action bolt unit comprising an action bolt (7) having a bolt shaft (11) and rotatably assembled to a bolt case (12), an action bar (14) with an action bar base (16), and a spring (13). (Fig. 2) is assembled to the lock case (1), and when the door is opened, only the action bolt (7) protrudes from the lock case front (2). When the action bolt rotates, the bolt case does not have to be retracted. The action bar pedestal is pushed by the action bolt and the action bar protrudes.When the action bolt is retracted without rotating, the bolt case is retracted, and the action bar pedestal is pushed by the action bolt assembled to the bolt case and the action bar protrudes. The action bolt mechanism. The action bolt (41) with a tapered surface (42) on the door closing direction has a roller (45) on the back (43) of the action bolt (41), and the roller protrudes slightly from the back (46). When the action bolt is pushed back, the action bolt does not touch the lock case front (2) and the lock case (1), and the roller (45) touches the action bolt to reduce the frictional resistance when the action bolt is retracted. Construction.