JPH0350067B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a locking device that is equipped with a locking tool that can lock a locking rod in an incompletely protruded position, and that can diversify the uses of a door and has a simple structure. Regarding.

[Problems to be solved by conventional technology and invention]

Conventionally, when entering a room, electrical appliances such as lighting fixtures are turned on by operating a switch outside the room before entering the room, or by operating a switch inside the room after entering the room, but in both cases, the door is turned on. A separate switch operation is required for opening and closing. Moreover, if the light is turned on after entering the room, you have to switch it on in the dark room, which is inconvenient, and in any case, you also need to switch it on when you leave the room.
It is easy to forget to turn it off.

Therefore, it is preferable to conveniently turn on and off the light while opening and closing the door, and there is a need for a locking device that can perform such operations.

On the other hand, various types of locks are known, such as conventional box locks, which are equipped with locking rods for full tightening and empty tightening.
Publication No. 8518 is equipped with two locking rods, one for full tightening and one for empty tightening, and for the locking rod for full tightening, the amount of protrusion of the locking rod is compared to the normal protrusion amount of the locking lever when locking by thumb turn from inside the room. proposed a device in which the electric circuit including the electric light inside the room is opened when the user goes out by increasing the amount of protrusion when the key is used from outside to lock the door than the normal amount.

However, as mentioned above, this is not a lock lever for empty tightening, but a lock lever for full tightening in which the lock lever is held in the retracted position when the lock is not locked, and the amount of protrusion of the lock lever when locking when going out is larger than the amount of protrusion of a normal lock lever, and since it is assumed that the locking and unlocking operations are separate from the so-called opening and closing of the door, the light is turned on and off for convenience when opening and closing the door. It cannot be a lock.

Therefore, the inventors of the present invention filed a patent application filed in 1983 as a device that can turn on and off lights when opening and closing such a door.
- According to Publication No. 91005 (Special Publication No. 1-50749),
Regarding the lock lever for idle tightening, we have proposed a lock that can lock the lock lever at an intermediate, incompletely protruded position when the lock lever returns.

The proposed lock also requires a means for releasing the lock in order to be used for opening and closing an electric circuit as well as turning on and off lights, but in order to simplify the mechanism, the release means It is desirable to have a simple configuration.

The present invention aims to provide a locking device that can meet the above requirements, based on the common use of a member that moves the lock lever and releases the lock at the incompletely protruded position of the lock lever. .

〔Example〕

In the figure, the lock device 1 of the present invention consists of a lock body 3 attached to the free end of a door D, and a receiving plate 6 attached to a stationary frame 5 facing the free end of the door D. A lever 4, a first operating body 7 disposed on both sides of the door D that moves the locking lever 4, a second operating body 8, a locking tool 9 that locks the locking rod 4, and releases the locking. A push piece 61 serving as a release tool is provided, and a guide piece 106 is provided protruding from the receiving plate 6.

In this embodiment, the lock main body 3 includes a main body part 15 fitted into the free end surface of the door D, and exterior parts 16 and 17 attached to both sides of the door D. The main body part 15 is shown in FIG. As shown, a case 21 is provided at the back of the front 22 with a flat housing part 24 whose one side can be covered by a cover plate 23.
The lock rod 4 can be moved forward and backward through the through hole bored in the lock 2.

The locking rod 4 has a blocking portion 4a at its tip that prevents the square shaft-shaped door from closing, and has stepped portions 11 and 12 on the top and bottom of the rear end by bulging at the top and bottom. Further, the rear portion thereof is provided with guide pieces 26, 27 that extend back and forth, and triangular portions 29, 30 that taper toward the tip protrude from the outer and inner surfaces thereof, and are also provided on one side of the tip. A piece 28 is provided on the side. Furthermore, the lock rod 4 is provided with a long hole 31 passing through its outer and inner surfaces, and a notch 32 extending in the longitudinal direction is provided on its inner and outer surfaces. In addition, a piece 34 made of a cushioning material such as synthetic resin or rubber is inserted into a groove 33 (shown in FIG. 7) extending around the blocking part 4a and fixed using a rivet. There is. Note that the piece 34 can also be fixed using adhesive, rubber baking, screwing, or the like.

In addition, the lock rod 4 has its guide pieces 26, 27, 28,
The lock rod 4 is loosely fitted into the guide grooves 41, 42 and 43, 44 provided in the cover plate 23 and the side plate 25 of the housing part 24, and the lock rod 4 has its guide pieces 26, 27 in the guide grooves 41, 43. The blocking portion 4 abuts against the front edge.
The fully protruding position A where a almost completely protrudes, and the door D being recessed into the front 22 as it retreats.
It is possible to reciprocate between the immersion position B and the immersed position B, where it can be released. In addition, the locking rod 4 is biased forward toward the protruding side by the spring 115 at the rear end, so that in the free state,
The lock rod 4 can freely move forward toward the fully extended position A.

A locking member 9 is disposed below the locking rod 4, and a first lever 19 is disposed on its outer surface and a second lever 20 is disposed on its inner surface.

The locking tool 9 has side pieces 50 and 51 on both sides of the upper piece 49.
It consists of an arm 9a with a U-shaped cross section that hangs down. Further, a support pin 46 protruding from the front end of the side plate 25 is inserted into a through hole formed through the end of the side pieces 50, 51, so that the end of the side plate 25 is supported so that the rear part can swing up and down. Furthermore, a cam piece 53 formed by folding back the side piece 50 upward is provided at the rear end. Further, the locking tool 9 is operated by a spring 54 (shown in FIG. 5).
The locking portion 13 formed by the rear end edge of the upper piece 49 is urged toward the lock rod 4. As a result, the locking tool 9
By engaging the locking portion 13 with the lower stepped portion 12 of the lock rod 4, the lock rod 4 is moved to the fully extended position A.
and a retracted position B in which the door D can be released.

The first lever 19 has a flat base plate 59 rotatably supported by a driving wheel 57 that fits on a support shaft 56 of the first operating body 7 of the exterior portion 16 . Further, the pin-shaped push piece 61 is protruded from the tip,
The push piece 61 is inserted into the elongated hole 31.

Further, the first lever 19 has a tension spring 64 attached to a first spring receiver 62 provided on the side surface thereof, and one end of which is attached to a second spring receiver 63 provided on the side plate 25.
The other end (as shown in Figure 5) is suspended. Further, the first lever 19 is in contact with the bottom plate 65 of the housing portion 24,
Projection piece 66 that can be maintained in the initial forward tilted state as a reference
and a claw piece 67 are formed. The claw piece 67 is pressed against a protruding piece 69 provided on the driving wheel 57. Note that the protruding piece 69 and the claw piece 67 form a small angle α (as shown in FIG. 5) when the first operating body 7 is in the horizontal state as a reference and the first lever 19 is in the forward tilted state as the reference state. They are protruded out of phase with each other to separate them.

The pushing piece 61 moves the lock rod 4 from the fully extended position A to the retracted position B by pressing the rear edge of the elongated hole 31 by tilting the first lever 19. Further, when the lock lever 4 is retracted to the vicinity of the incompletely protruding position C, the pushing piece 61 comes into contact with the circular arc portion of the front edge of the cam piece 53 of the locking tool 9, and presses down the cam piece 53. As a result, the locking portion 13 is separated from the stepped portion 12, and the engagement between the lock rod 4 and the locking tool 9 is released.

In this way, the push piece 61 is used as a "release tool" for driving the lock rod 4 backward and for releasing the engagement.

Also, in the return process after passing the cam piece 53, it engages with the circular arc portion of the rear edge of the cam piece 53, and can similarly push down the locking tool 9.

The second lever 20 has the elongated hole 31 at the upper end of a flat base plate 72 fixed to a driving wheel 71 fixed to a support shaft of a second operating body 8 provided in the exterior part 17.
A pin-shaped pusher piece 73 is provided to be inserted into. By rotating the second operating body 8, the pushing piece 73 pushes the rear edge of the elongated hole 31, and the lock rod 4 can be moved from the fully extended position A to the retracted position B. In addition, driving wheels 57, 71
are loosely fitted concentrically to each other and are supported by bearing holes 74 and 75 provided in the cover plate 23 and the side plate 25. Therefore, the spindle 56 of the first operating body 7 and the spindle of the second operating body 8 face each other concentrically, and each spindle rotates independently by operating the operating bodies 7 and 8. do.

Further, the lock rod 4 can be moved forward by the spring 115 and backward by the first and second operating bodies 7 and 8, so that the lock rod 4 is formed as a so-called idle-tight lock rod. Ru.

The exterior part 16 has locking tools 81 (9th to 11th locks).
(as shown in the figure) is provided. The locking tool 81 includes a retaining ring 84 on the cylindrical shaft 83 into which the support shaft 56 is fitted;
A retaining plate 86 is provided. The retaining ring 84 has a flange provided around the flat plate portion, a lower end of the flange is cut out, and a retaining groove 87 is provided. By fitting the protruding piece 89 on the upper edge of the locking plate 86 into the locking groove 87, the first operating body 7 can be restrained and locked in a horizontal state so as not to rotate.

The latch plate 86 is guided by a vertically extending protrusion 92 formed on the inner surface of the case 91 of the exterior part 16, and a drive pin 97 provided on a rotating plate 95 that fits into a square cylinder shaft 94 is connected to the latch plate 86. Notch hole 9 of stop plate 86
9, as shown in FIGS. 10 and 11, the upper and lower edges are pressed by the driving pin 97 and can move up and down as the rotating plate 95 rotates.
The rotating plate 95 has one end attached to a spring receiver 100 passing through the vertical hole of the locking plate 86, and a torsion spring 101 whose other end is attached to the rotating plate 95, while the rotating plate 95 is rotating. By passing through the narrow strong pressure part, the rotating plate 95, and therefore the square cylinder shaft 94, are moved to the locking plate 8.
They are elastically pressed at the upper and lower positions of 6, respectively. Note that the square cylinder shaft 94 of the locking tool 81 is connected to the joint piece 10.
3 to the other exterior part 17. Further, the square tube shaft 94 has an emergency button 104 (shown in FIG. 4) having a slot into which a coin or the like fits, and the exterior portion 17 side has a thumb turn 10 attached to the joint piece 103.
5 (shown in Figure 3) is prominent.

On the other hand, the receiving plate 6 is attached to the stationary frame 5,
A guide piece 106 projecting obliquely outward is formed via a stepped portion 109, and a locking hole 112 into which the lock rod 4 can be inserted is provided.

The guide piece 106 has one end in contact with the door stop 5a and is attached to a base plate 10 that is screwed to the front surface of the stationary frame 5.
7, the side edge 6a toward which the door D to close faces
In addition, it is provided diagonally protruding outward away from the door D via the narrow stepped portion 109 that is bent on the opposite side from the door D. As a result, when closing the door D, as shown in FIG. 15, the blocking portion 4a of the lock lever 4 that comes into contact with the guide piece 106 is pushed into the door D against the spring 115 on the back thereof. This makes it possible to absorb the energy when the door D is closed, thereby alleviating the impact caused by the collision between the protruding lock rod 4 and the receiving plate 6.

Further, an impact material 110 such as rubber is attached to the stepped portion 109 to further reduce the impact.

In addition, the stationary frame 5 has a void V communicating with the locking hole 112.
is formed.

In addition, in FIGS. 9 and 10, 116
is a torsion spring that is supported at both ends by the notches 98, 98 of the retaining ring 84 and can hold the first operating body 7 in a standard horizontal state, and the second operating body 8 is also a torsion spring. Other spring means (not shown) normally maintain the reference horizontal position.

[Effect]

Next, the locking device 1 of the present invention is used for a door D that partitions an external space R1 such as a hallway and a room R2 such as a washroom, and opens to the room R2 side, and also connects an electric circuit (not shown) to the door D. , opening and closing will be explained by taking as an example.

Attach the lock body 3 and the receiving plate 6 to the door D and the stationary frame 5, respectively, as described above, and store the switch S having the operating end S1 facing the door D in the space V at the back of the locking hole 112, And the operating end S1 is pressed by the lock rod 4 only at the fully protruding position A of the lock rod 4.
Can operate OFF.

When the room R2 is empty and the door is closed, the first operating body 7 and the second operating body 8 are horizontal, and the first lever 19 and the second lever 20 are in the standard position shown in FIG. It is in a forward leaning state, and the lock lever 4 is in the switch S position.
Switch S is activated by pressing operating end S1 of
It's off.

Next, when the first operating body 7 is rotated when entering the room, the claw piece 67 of the first lever 19 is pressed by the projecting piece 69 of the driving wheel 57 after the rotation by the angle α, and the first lever 19 As shown in the figure, when the release tool 61 presses the rear edge of the elongated hole 31, the lock rod 4 is released.
can be moved to the immersed position B, and therefore the door D can be opened to enter the room. Note that by releasing the hand from the first operating body 7 when entering the room, the first lever 19 is returned by the torsion spring 116 and the tension spring 64. When returning, the pushing piece 61 moves the cam piece 53 along the dashed-dot line in the vicinity of the incompletely protruding position C where the stepped portion 12 of the lock rod 4 and the locking portion 13 of the locking tool 9 are close to each other. By pressing down as shown in , the lock rod 4 is moved to the fully extended position A by the spring 115.
can stand out. That is, the first operating body 7 can freely reciprocate the lock rod 4 without operating the locking tool 9.

Next, when the second operating body 8 is gripped and rotated after entering the room, the push piece 73 of the second lever 20 similarly presses the rear edge of the elongated hole 31 and returns to the retracted position, as shown in FIG. Retract the lock lever 4 to B. As shown in FIG. 14, when the second lever 20 is returned until the locking rod 4 is at the incompletely protruding position C, the locking part 13 of the locking tool 9 moves upward, and the locking rod 4 is moved upward. It engages with the stepped portion 12 and can lock the lock rod 4 at the incompletely protruding position C. Note that even if the second operating body 8 is repeatedly rotated, this state can always be maintained, and the lock rod 4 is locked at the incompletely protruding position C. Furthermore, by closing the door in this state, the lock rod 4 is held at the incompletely protruding position C, and the switch S is turned ON.
The status is maintained and the lighting state is maintained while the user is in the room.

Next, when you operate the second operating body 8 when leaving the room, the lock rod 4 is similarly maintained at the incompletely protruding position C, but when you close the door using the first operating body 7 after leaving the room, the first operating body 8 The lever 19 causes the pusher piece 61, which is a release tool, to retreat to a position beyond the cam piece 53, while the second lever 20 is in a forward tilted state. Therefore, similar to the operation at the time of entering the room, when returning, the push piece 61 separates the locking part 13 from the stepped part 12 in the vicinity of the incompletely protruding position C, and locks the lock rod 4.
can be inserted into the locking hole 112 to its fully protruding position A, and the switch S can be turned off.

Even if the door is closed with the lock rod 4 protruding to the incompletely protruding position C when leaving the room, the guide piece 106 of the receiving plate 6 cushions the door, reducing the impact force and preventing damage.

After entering the room, by rotating the thumb turn 105 and pushing up the locking plate 86 as described above, the protruding piece 89 is fitted into the locking groove 87 of the locking ring 84, so that the locking tool 81 is moved to the first position. The rotation of the operating body 7 and the second operating body 8 can be locked. An emergency button 104 is provided on the outside of the room, and in an emergency, the emergency button 104 can be used to unlock the lock 81 from the outside via the joint 103 and open the door D. Note that the locking tool 81 can also be formed using a lever piece that is provided inside the housing section 24 of the main body section 15 and can lock and restrain the first lever 19 in its forward tilted state. , exterior part 16,
17, but can be formed on the main body portion 15 itself.

〔Effect of the invention〕

As described above, the lock device of the present invention consists of a lock body and a receiving plate, and the lock rod can be held in two positions: a fully extended position and a partially extended position. Therefore, when operating the switch using the lock lever, the operating state of the switch can be changed between the two positions. As a result, when entering the room, the appliance lights up when the lock moves away from the switch, continues lighting by setting it to the partially extended position while entering the room, and operates the switch by setting it to the fully extended position when leaving the room. It is possible to configure a device that can automatically turn on and off an electric circuit, such as turning off a light, by operating an operating body in conjunction with opening and closing a door. Further, the push piece provided on the first lever that is rotated by the first operating body has the function of moving the lock lever from the fully extended position to the retracted position, and the function of moving the lock lever from the fully extended position to the retracted position, and the function of locking the lock lever with the locking tool in the partially extended position. It can be used in common for its function as a release tool for releasing the locking of the lock rod, and therefore the structure is simplified compared to a structure in which the two functions are performed by separate members.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention together with the state of use, Fig. 2 is a front view showing the lock body, Fig. 3 is its right side view, Fig. 4 is its left side view, and Fig. 5 The figure is a front view of the main body of the lock with the cover plate removed, FIG.
The figure is a cross-sectional view taken along the - line, FIG. 8 is a cross-sectional view taken along the line - FIG. 9 is a schematic exploded perspective view thereof, FIG. 10 is a front view showing the locking device, and FIG. 12 to 14 are front views showing the function of the lock body, and FIG. 15 is a diagram showing the closed state of the door when leaving the room. 1...Lock device, 3...Lock body, 4...Lock rod, 4
a... Blocking part, 5... Stationary frame, 6... Receiving plate, 7...
...First operating body, 8... Second operating body, 9... Locking tool, 9a... Arm, 12... Step portion, 13...
... Locking part, 20 ... Second lever, 61 ... Push piece (release tool), 106 ... Guide piece, 115 ... Spring, A ... Fully extended position, B ... Retracted position, C ...
Incomplete protrusion position, D...door.

Claims (1)

[Claims] 1. A lock body that is attached to the free end of a swinging door and has a lock that moves between a fully protruding position where it projects from the door and a retracted position where the door can be opened, and a lock body that is attached to a stationary frame facing the free end of said door. The lock body includes a receiving plate into which the lock rod is inserted, and a spring that biases and moves the lock rod toward the protruding side, and a first lever that is arranged on one side of the door and rotates when operated. a first operating body that moves the lock rod from a fully extended position to a retracted position by means of a push piece provided on the door; a second operating body that moves the lock rod from the fully extended position to the retracted position; and a second operating body that moves the lock rod from the fully extended position to the retracted position; and The push piece includes a locking tool that locks the locking rod at the protruding position, and the push piece includes a release tool that releases the locking of the locking rod by the locking tool when the first operating body is operated. Eggplant locking device.