JPH0350066B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] By providing a lock that is held at a partially extended position between a fully extended position and a door opening position, and operating a control tool using this lock, For example, we aim to simplify the operation of opening/closing, turning on and off the electrical circuits of electrical appliances such as lighting fixtures placed inside or outside a room, and to save power, while also preventing overheating of electrical appliances and leakage of electricity due to forgetting to turn them off. The present invention relates to a locking device that can prevent and contribute to safety.

[Background technology]

BACKGROUND ART Conventionally, box locks have been frequently used which have a lock lever for full tightening and a lock lever for so-called dry tightening to prevent the door from opening accidentally due to wind or the like. In addition, as a device that uses such a box lock to turn on and off electric appliances such as lighting equipment, for example, Jikosho
No. 41-8518 has been proposed.

However, in this case, when the door is locked using a key from outside, the protruding length of the lock lever for final tightening is longer than when using a hand lock using a thumb turn or the like from inside the house. said on,
is configured to turn off.

Thus, in this proposal, depending on the hand lock, the lock lever has two positions, the open position and the protruding position, and depending on the key lock, the lock lever has two positions, the open position and the protruding position of the hand lock. The lock lever is configured to move between two positions, including a protruding position that is larger than the protruding position, and to remain stationary at each of the two positions. In addition, in this proposal, when there is no need to lock the door, the lock lever for empty locking prevents the door from opening due to wind or the like. Therefore, in the proposed method, in addition to the key, thumb turn, etc. for operating the lock lever for full tightening, an operating body such as a handle for operating the lock lever for empty tightening is required. Furthermore, in the above-mentioned proposal that uses a lock for final tightening to turn on and off electric appliances, when the lock for idle tightening is not used, when closing the door, it prevents the door from opening due to wind, etc., and maintains the door closed. In order to do this, it is necessary to operate an operating body such as a key or a thumb turn not only when opening the door but also again to project the lock lever.

[Purpose of the invention]

The present invention uses a lock lever for idle tightening that is always biased toward the protruding side, instead of a lock lever for full tightening, and furthermore, the lock lever can be locked in an incompletely protruding position, and the lock lever is The object of the present invention is to provide a locking device that can automatically turn on and off electric appliances such as lighting fixtures by operating a control tool, making it convenient to operate a switch.

[Disclosure of the invention]

An embodiment of the present invention will be described below based on the drawings.

1 to 6 show a basic embodiment of the present invention, and the lock device 1 includes a lock main body 2a attached to a door D, and a receiving plate 2b attached to an opening frame F toward which the front end of the door faces.
and a control tool S such as a micro switch arranged on this receiving plate 2b. The door D is a wall W that partitions the inside and outside of the building into two spaces R1 and R2.
The door D is attached to an opening provided in the space R2, and the door D is formed, for example, as an inward-swinging door that opens into the space R2. In this embodiment, the space R1 is, for example, a hallway, and the space R2 is a room where the lights are always turned off, such as a washroom, a bathroom, and a storeroom.

The lock body 2a includes first and second operating bodies 3 and 4 that protrude from both sides of the door D, and the first and second operating bodies 3 and 4 have handles 3b and 4b and are rotatable. mounted on. As illustrated in FIG. 2, in the lock body 2a, the lock rod 11, which is biased forward by a spring 15 in the case 14, is held back from the tip of the lock rod 11. 13 and its full protruding position A until it comes into contact with lock rod 1
1 to the front 13 side, and
It is supported so as to be able to reciprocate between the door opening position B, where the door D can be opened by almost recessing into the interior. Further, the lock rod 11 can be locked even in the incompletely protruding position C between the door opening position B and the fully protruding position A, and the tip of the lock rod 11 is formed in the shape of a rectangular parallelepiped with both sides parallel to each other. be done.

In this example, the lock body 2a can lock the lock rod 11 at the incompletely protruding position C by operating the second operating body 4 of the first and second operating bodies 3 and 4. .

The receiving plate 2b into which the locking rod 11 is inserted is a substantially T-shaped plate having a locking hole 17 at its base and a cylindrical cushioning material 5 attached to its tip. The receiving plate 2b is attached to the vertical frame member F with the buffer material 5 positioned on the open side of the door D, thereby providing a buffer when the protruding lock rod 11 collides with the buffer material 5. Further, the locking hole 17 communicates with a hole recessed in the opening frame F,
A control tool S consisting of, for example, a microswitch is housed in the hole with its operating end Sa facing outward.
Furthermore, in the opening frame F, there is a pilot lamp on the outdoor side.
PL is installed. FIG. 3 exemplifies the connection between the control tool S and the electric appliance E, and when the main switch M is turned on and the control tool S is turned on and turned on, the relay R is operated. At the same time, the relay contact Ra turns ON, and the electric appliance E becomes energized. That is, while the control tool S is turned on, the electric circuit EC is a closed circuit.

The closed state of the control tool S is the incompletely protruding position C of the lock 11 (when entering the room) and the door opening position B,
The lock 11 is in a state away from the operating end Sa of the control tool S. This is, for example, a state in which the lighting fixture L is lit. However, when the controller S turns OFF, the relay contact Ra turns OFF due to the relay R.
The electrical circuit EC becomes an open circuit. That is, the lighting fixture L is turned off. This state is the full protruding position A of the lock rod 11.
(when leaving the room), and the operating end Sa of the control tool S is pressed.

Therefore, as the electrical equipment E, a pilot lamp PL, a ventilation fan F, and a heating equipment H are installed in addition to the lighting equipment L.
etc. can be selected arbitrarily.

Moreover, the electric circuit EC may be opened and closed directly by the control tool S without using the relay R. Depending on the circuit conditions, if necessary, the contact with the lock rod 11 may be applied.
Of course, it can be connected as if it were switched to OFF.

Further, the locking rod 11 is provided at its rear end with a locking protrusion 21 whose lower back surface is sloped. The lock rod 11
has grooves extending rearward from the back of the contact piece 12 on both sides, and guide grooves 22 and 23 are formed by closing the grooves with presser pieces. The guide grooves 22 and 23 have support shafts 3a and 4a of the operating bodies 3 and 4.
The upper end portions of the first lever 19 and second lever 20 attached to are inserted. Both the first lever 19 and the second lever 20 have boss parts 29 and 30, respectively, in which square holes are formed concentrically at their bases.
, a locking groove 31 is formed in a position facing rearward when the first lever 19 is in the forward-inclined reference state. The boss portion 30 is provided with two clutch grooves 32 that increase in depth in the rearward direction of the second lever 20.
The clutch groove 32 accommodates a clutch pin 35 using, for example, a cylindrical pin, which also comes into contact with the inner surface of a ratchet wheel 34 that fits into the boss portion 30. The ratchet wheel 3
4, a claw portion 40 having a locking surface 39 extending in the radial direction on the forward-inclined side of the second lever 20 is formed at a pitch of 60 degrees. Further, the back surface of the claw portion 40 is formed into a plane 41 extending from the tip of the claw portion 40 to the root portion. A substantially U-shaped spring piece 42 transparently installed below the front 13 of the case 14 comes into contact with the flat surface 41, and by being locked by the locking surface 39, an angle of more than 60 degrees, for example, 75 degrees is formed. When the angle is rotated, the claw portion 40 is pressed and the flat surface 41 and the spring piece 42 are inverted by 15 degrees, which is the angle difference, to a 60 degree rotation position where the flat surface 41 and the spring piece 42 abut. Note that the rear end of the ratchet wheel 34 is connected to the case 14 of the lock rod 11.
, so it will not rotate more than 120 degrees.
A gear 46 is integrally formed on the ratchet wheel 34. The gear 46 meshes with a pinion 47 that is pivotally supported on both sides of the back of the case 14, and the number of teeth of the pinion 47 is 1:1.5 compared to the gear 46, so that the gear 46 It can be rotated in 90 degree increments for every 60 degree rotation. A cam 50 is integrally formed with the pinion 47. The cam 50 has a substantially elliptical shape, and its major axis and minor axis are positioned vertically or horizontally every 60 degree rotation of the ratchet wheel 34. The cam 50 has a case 14
The lower end of a follower 52, which is vertically and slidably attached to a support piece 51 extending from the back plate of the follower 52, comes into contact with the cam surface of the follower 52. The follower 52 constitutes a locking device 7 for locking the lock rod 11, and is biased downward by a spring. The cam 50 further causes a locking piece 55 to follow. The locking piece 55 is a rectangular plate having a hole in which the cam 50 is rotatably inserted, and is biased forward by a spring 56 inserted between the locking piece 55 and the back plate of the case 14. While the back surface of the hole comes into sliding contact with the cam 50, when the back surface comes into contact with the cam surface on the short shaft side of the cam 50, the locking piece 55 moves forward, and the protruding piece 57 provided at its tip engages the locking piece 57. It fits into the stop groove 31 and the first
lever 19 can be locked. The first and second levers 19 and 20 are biased forward by springs,
There is forward play between the guide grooves 22 and 23.
It always stops at its reference position having 3a. Note that the first and second levers 19 and 20 hold their handles 3b and 4b horizontally in their reference positions.

However, the lock body 2a is attached to the handle 3 of the first operating body 3.
By pushing down b, the first lever 19 moves in the guide groove 22, and then the rear end of the guide groove 22 is pushed and pulled, and the lock lever 11 is moved to its full protrusion, where the contact piece 12 abuts the front 13. Move from position A to opening position B, where the tip of the lock lever 11 is located near the front 13 and the door can be opened (as shown in FIG. 4), and release the first operating body 3. As a result, the spring 15 causes the lock rod 11 to project to the fully extended position A. Therefore, in this state, when the door D is closed, it collides with the periphery of the wall opening, making it impossible to close the door.As a result, the tip of the lock rod 11, which is shaped like a rectangular parallelepiped and has parallel both side surfaces, is used to close the door D. It constitutes a blocking piece 6 that can prevent the
This blocking piece 6 has the role of ensuring that the operating body is operated when the door is opened or closed, and therefore ensures the opening and closing operation of the electric circuit E. Further, when entering the space R2, by pulling the lock lever 11 using the first operating body 3, the lock lever 11 is separated from the control tool S and the electric circuit EC is closed. Note that while the lock rod 11 is being moved by the first lever 19, the second lever 20 is in the guide groove 2.
3 is stopped within the free space 23a. Next, by operating the second operating body 4 on the side that passed through for closing,
Tilt the second lever 20 backward. second lever 2
0 makes contact with the rear end of the guide groove 23 and moves the lock 11 backward, while at the same time rotating the ratchet wheel 34 in the same direction via the clutch pin 35. When the ratchet wheel 34 rotates 60 degrees, it climbs over one pawl 40 and the gear 4
6 and the pinion 47, the cam 50
By vertically rotating its long axis 90 degrees, and further rotating the second lever 20 past the 60 degree position, for example by 75 degrees as shown in FIG.
is retreated from the fully extended position A to the door opening position B. Note that at the 75 degree position, the claw portion 40 is urged in the reverse direction by the spring piece 42, and therefore, as the lever 20 is reversed, the spring piece 42 and the flat surface 41 come into contact with each other.
return to the correct position. During the return, the follower 52 pushed up by the cam 50 locks the protrusion 21 of the lock rod 11, moving the lock rod 11 from the open position B to the fully extended position A as shown in FIG. During the return stroke, it functions as a locking tool 7 that holds the incompletely protruded position C during the return stroke. Also, the protruding piece 57 of the locking piece 55 that slides on the short shaft side of the cam 50 is in the locking groove 3.
1 and restrains the first operating body 3. The lock 11 is thus separated from the control S, closing the electric circuit EC and lighting the electric appliance E. Furthermore, when leaving the room, by operating the second operating body 4 in the same manner, the cam 50
is rotated 90 degrees, and by pushing down the follower 52 and retracting the locking piece 55, the lock rod 11 can be extended to its fully extended position A, and the first operating body 3 can be opened. As a result, when exiting, the door can be closed using the first operating body 3, and when the door is closed, the lock rod 11 is extended to the fully extended position A, and the control tool S is pushed to open the electric circuit EC and, for example, turn off the light.

As described above, in this embodiment, the electric circuit EC can be closed by the opening operation of the first operating body 3, and since it is habitually used even in the dark, the operating body whose location is known in advance is used. 3, the room can be easily illuminated. Also, space R2 is always
By opening the electric circuit EC that supplies power to the electric appliance E and turning on the light only when necessary, it achieves a power saving effect and also prevents the risk of electrical leakage and overheating due to forgetting to turn it off. Furthermore, since the electric circuit EC can be closed when the door D is opened, and the closed circuit state is maintained while the door is open, convenience is improved by eliminating the feeling of anxiety when entering a dark room. Furthermore, when the switch SO is operated, the electric circuit EC is forcibly closed, and the electric appliance E can be turned on regardless of whether anyone enters or leaves the room. Therefore, even when several people enter the room at once and leave the room individually, the light can be turned on by the switch SO as long as there are people entering the room. In addition, the pilot lamp PL displays the lighting state in the space R2 from outside, and the operation of the control tool S can be confirmed.

7 to 11 show still other embodiments of the present invention using different lock bodies 2a.

The locking rod 11 has a notch on the front lower edge.
2 and has a guide groove 22 extending in the longitudinal direction. The guide groove 22 has a first lever 1 and a second lever 1.
Push pieces 61 and 73 provided at the tips of 9 and 20 are inserted. The first lever 19 is fixed to the boss portion 29 and has an arcuate protrusion 81 on the outer edge of its back. Further, the second lever 20 is rotatably attached to the boss portion 30, and is provided with an arc notch groove 84 into which an engaging piece 82 protruding from the boss portion 30 can be inserted with a gap. . The kerf 84 is
At the reference position where the second lever 20 is tilted forward,
The rear surface contacts the engagement piece 82 . Further, the second lever 20 is provided with a locking part 25 on the rear surface thereof, which has a relatively small protruding length and is out of phase with the protruding part 81 in the counterclockwise direction in the figure. Further, the case 14 is provided with a locking tool 7 made of a plate body 7a that is biased forward by a spring. The locking tool 7
As shown in FIG. 10, when the second lever 20 is tilted backward, it engages with the locking portion 25 and can maintain the backward tilted state. Furthermore, the locking tool 7 can slide into contact with the first lever 19, and is retracted by the protruding portion 81 to release the engagement with the locking portion 25.

An inclined surface 82a is provided inwardly of the engagement piece 82, and this inclined surface 82a rotates counterclockwise in conjunction with the operation of rotating the second operating body 4 counterclockwise. , a lock pin 8 provided on the case 14
9 towards the first lever 19. As the lock pin 89 moves, it fits into a locking hole 90 provided in the first lever 19 and
can be locked in its forward tilted state, and this state is maintained by frictional force until the second operating body 4 is operated again.

Next, the operation of this embodiment will be explained. Boss part 29
By operating the first operating body 3 that fits into the first lever 19 and tilting the first lever 19 backward, the pushing piece 61 pushes the rear surface of the guide groove 22, and the lock 11 is moved to the fully extended position A.
to the door opening position B (shown in FIG. 9).
In this way, the first operating body 3 can move the lock rod 11 via the lever 19 and the like. Also, the control tool S can be turned on by opening the door. Further, by operating the second lever 20 after entering the space R2 from the space R1 by opening the door, the engagement piece 82 tilts the second lever 20 backward, and as shown in FIG. The stopper 7 engages with the locking portion 25 and can be held in a backward tilted state. As a result, the lock rod 11 is locked in the incompletely extended position C, and the control tool S continues to be turned on. Note that even if the second lever 20 is repeatedly operated, the same state is maintained. Note that since the notch groove 84 is provided, only the second operating body 4 can be returned to the standard state. Note that in this state, the second
By rotating the operating body 4 counterclockwise beyond the reference state, the lock pin 8 is rotated as described above.
9 can lock the first operating body 3. Note that when exiting, after operating the second operating body 4 to open the door, by operating the first operating body 3, the protrusion 81 causes the locking tool 7 to retreat as shown in FIG. The engagement with the locking portion 25 is released. As a result, the first and second levers 19 and 20 can return to their original states, and the lock rod 11 returns to the fully extended position A, allowing the control tool S to be turned off. In this example,
Even if the operation of the second operating body 4 is repeated, the lock lever 11
can be maintained at the incompletely protruding position C. Therefore, it is possible to prevent the lock rod 11 from alternately reciprocating between the fully extended position A and the door opening position B by repeatedly operating the second lever 20 as in the embodiment described above.

〔Effect of the invention〕

As described above, the lock device of the present invention has a lock body equipped with an empty locking lever that can be locked in the incompletely extended position, and uses a control tool that is operated by the locking lever in the fully extended position. It is possible to automatically open and close the electrical circuits of electrical appliances such as lighting fixtures placed inside or outside the room by the habitual human action of opening and closing, and in response to various actions, such as turning lights on and off. It can be used in a variety of ways, such as by forming a so-called systemized door device that simplifies the process and saves electricity, and also contributes to safety by preventing overheating of electrical appliances due to forgetting to turn them off, electrical leakage, etc. Become.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a partially cutaway perspective view illustrating the lock body, Figure 3 is an electric circuit diagram, Figures 4, 5, and 6.
7 is a front view showing another embodiment of the present invention, FIG. 8 is a central sectional view thereof,
9 to 11 are diagrams showing the effect. 2a...Lock body, 2b...Socket plate, 11...Lock rod, A...Full protruding position, B...Opening position, C...
Incomplete protrusion position, D...door, S...control tool.

Claims (1)

[Claims] 1. A lock rod that is held so as to be able to reciprocate between a fully extended position and a door opening position, a spring that urges this lock rod to the fully extended position, and a spring that is arranged on one side of the door and that supports the lock rod. a first operating body engaged with the lock that reciprocates between a fully extended position and an open door position; a second operating body that engages the locking lever to move the locking lever from the fully extended position to the door open position; a lock body comprising a locking device for locking the door in a partially extended position between a fully extended position and an open door position; A locking device comprising a receiving plate having a hole, and a control device provided inside the locking hole and operated by a lock lever in a fully protruding position and capable of opening and closing an electric circuit having an electric appliance.