JPH0350068B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention provides a lock main body having a locking tool capable of locking a lock lever in an incompletely protruded position and a release tool releasing the locking, and The present invention relates to a locking device that can be used for a variety of purposes and that can conveniently open and close doors.

[Background technology]

BACKGROUND ART Conventionally, box locks have been frequently used which have a locking lever for full tightening and a locking lever for so-called dry closing to simply 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.

As described above, in this proposal, the lock lever has two positions, the open position and the protruding position, depending on the hand lock, and the open position and the protruding position of the hand lock, when using the key lock. The lock lever is configured to move between two positions with a larger protrusion 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 above proposal,
In addition to the key, thumb turn, etc. that operate the lock lever for full tightening, an operating body such as a handle that operates 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 locking lever for idle tightening that is always biased toward the protruding side, rather than a locking lever for full tightening, and can lock the locking lever in an incompletely protruding position. In addition to being able to change the position of the lock at the door, by providing a release tool, the lock can automatically return to the fully extended position when the door is closed when leaving the room, and the door can also be operated. The purpose is to provide a convenient locking device.

[Disclosure of the invention]

Embodiment In the figure, a locking device 1 of the present invention consists of a lock body 3 attached to a door D and a receiving plate 6 attached to a stationary frame 5.
A lock lever 4, a locking tool 9, and a release tool 10 are provided, which are moved by the operation of the operating body 7 and the second operating body 8.

In this embodiment, the lock main body 3 includes a main body part 15 that is fitted on the front end surface of the door D, and exterior parts 16 and 17 that are attached to both sides of the door D. A case 21 is provided with a flat accommodating portion 24 that can be shielded from one side by a cover plate 23.
The lock rod 4 can be moved forward and backward through a through hole bored in the front 22.

The locking rod 4 has a tip 4a with a sloped cutout on the outer surface.
, and is provided with step portions 11 and 12 that bulge out at the top and bottom of its rear end and face forward in the top and bottom, and has guide pieces 26 and 27 extending back and forth at its rear end, and is a triangular shape that tapers toward the tip. Part 29, 30
are protruding from its outer and inner surfaces. The lock rod 4 is provided with a long hole 31 passing through the outer and inner surfaces, and a notch 32 extending in the longitudinal direction is provided on the outer surface.
A piece 34 made of a cushioning material such as synthetic resin or rubber is fitted into the groove 33 that includes the slope and extends to the front edge of the elongated hole 31, and is fixed using a rivet. In addition, this piece 3 may be damaged by adhesive, baking, screwing, etc.
4 can also be fixed.

A timing bolt 10a forming the release tool 10 is attached to the inner surface of the lock lever 4. The release tool 10 is provided on the inner surface side, as shown in detail in FIGS. 10 and 11. A protruding piece 37 that can be fitted into the elongated hole 31 and a receiving piece 39 that is located at the top of the locking rod 4 and extends rearward are provided at the rear of the long piece part 36 having the same thickness as the triangular part 30. , and a guide piece 40 is formed on the inner surface of the release tool 10, and the release tool 10 can be moved back and forth relative to the lock rod 4 by inserting the projection piece 37 into the elongated hole 31. The lock rod 4 and the release tool 10 have guide pieces 26, 27, and a guide piece 40.
The lock rod 4 is fitted into the guide grooves 41, 42 and 43 provided in the cover plate 23 and the side plate 25 of the accommodating portion 24, and the lock rod 4 is fitted into the guide grooves 26, 27 thereof.
between a fully protruding position A where the door D contacts the front edges of the guide grooves 41 and 42 and its tip 4a protrudes forward, and a retracted door opening position B where the door D is released and is substantially recessed into the front 22. Can move back and forth. Also, release tool 10
When the guide piece 40 collides with the front edge of the guide groove 43, there is a space between the protrusion piece 37 and the front edge of the elongated hole 31 of the lock rod 4 which has protruded to the full protrusion position A. In this case, a gap g is left as shown in FIG. A locking tool 9 is arranged below the lock lever 4, and a first lever 19 is mounted on the outer surface of the locking tool 9, and a second lever 19 is mounted on the inner surface of the locking tool 9.
A lever 20 is arranged.

The locking tool 9 has side pieces 50 and 51 on both sides of the upper piece 49.
The arm 9a has a U-shaped cross section with the side piece 5 hanging down.
0 and 51, the side plate 25 is supported at the front part so as to be swingable up and down by a support pin 46 protruding from the front end part of the side plate 25, and at the rear end thereof.
A cam piece 53 is provided by folding the side piece 50 upward, and the locking tool 9 is held by a spring 54.
The locking portion 13 formed by the rear edge of the upper piece 49 is urged toward the lock rod 4, and as a result, the locking portion 13 is
By engaging with the stepped portion 12 below the lock rod 4, the lock rod 4 is moved to a tip end having the sloped portion between the fully extended position A and the opening position B where the door D can be released. It can be locked at an incompletely protruding position C where only the portion 4a protrudes substantially from the front 22. In addition, release tool 10
In this example, when the guide piece 40 abuts against the front edge of the guide groove 43, its tip substantially coincides with the tip of the lock 4 at the incompletely protruding position C.

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 part 16, and has a flat base plate 59 at its tip. , pin-shaped push pieces 60 and 61 are provided vertically protruding, and when the first lever 19 is in the forward tilted state as a reference, the guide piece 40 is connected to the guide groove 43.
a release tool 10 that protrudes forward until it abuts the front edge of the
It can come into contact with the back surface of the receiving piece 39 or be located near it. Further, the pusher piece 61 is inserted into the elongated hole 31 in this state. Furthermore, the first lever 19
is a tension spring 64 whose one end is attached to the spring receiver 63 of the side plate 25 on the spring receiver 62 provided on the side thereof.
By suspending the other end, the release tool 10 is biased toward the forward tilting side, and as a result, the release tool 10 is pressed against the first lever 19.
However, by being in the forward leaning state which is the reference mentioned above, it can be pushed forward by the first lever 19 via the pushing piece 60. Further, the first lever 19 has a claw piece 67 and a housing part 24.
A protruding piece 66 is formed that abuts the bottom plate 65 of the lever and holds the first lever 19 in the forward tilted state serving as the reference. The claw piece 67 and the protruding piece 66 are arranged symmetrically with respect to the longitudinal center line of the first lever 19, allowing the lever to be used in the opposite direction. Note that in the protruding state in which the guide piece 40 of the release tool 10 abuts against the front edge of the guide groove 43, the first lever 19 of,
It can be maintained in a forward tilted state as a reference, and in that case, the protruding piece 66 can be omitted. The claw piece 67 is
It is pressed by a projection piece 69 provided on the driving wheel 57. Further, the protruding piece 69 and the claw piece 67 are out of phase by a small angle α when the first operating body 7 is in a horizontal state as a reference and the first lever 19 is in a forward tilted state as a reference. It is installed protrudingly.

The pushing piece 61 moves the locking rod 4 from its fully protruding position A to the door opening position by pushing the rear surface of the elongated hole 31 of the locking rod 4 by the backward tilting of the first lever 19. Move it to B, and move the lock lever 4 to the first position.
When the lever is tilted forward, the lock lever 4 is moved to the fully extended position A by the spring 115, and thus the lock rod 4 can reciprocate back and forth. Further, the pusher piece 61 extends upward between the lock rod 4 and the first lever 19 when the lock rod 4 is retracted to the vicinity of the incompletely protruding position C.
The locking portion 13 can be separated from the stepped portion 12 by coming into contact with the front edge arc portion of the cam piece 53 of the locking tool 9 and pushing down the cam piece 53. Also, in the return stroke after passing the cam piece 53, it engages with the circular arc portion of the rear edge of the cam piece 53, and similarly the locking tool 9
can be pressed down. Note that the first lever 19
Due to the tilting movement, the pushing piece 61 passes over the raised portion 53 backwardly and returns. Also push piece 6
0 is pressed by the receiving piece 39 of the retracting release tool 10, the first lever 19 is tilted backward, and this backward tilting of the first lever 19 causes the push piece 61 to move as described above. As shown in FIG.
0 is the first lever 1 linked to the first operating body 7
9, the engagement between the locking tool 9 and the locking rod 4 can be released in the vicinity of the incompletely protruding position C, and the locking can be prevented, and the releasing tool 10 can be used together with the locking rod 4 to open the door. When retracted to the vicinity of position B, the receiving piece 39 pushes the first lever 19 through the pushing piece 61.
is tilted backward until the lock lever 4 is at the incompletely protruding position C.

The second lever 20 has a pin-shaped plate inserted into the elongated hole 31 at the upper end of a flat base plate 72 fixed to a driving wheel 71 into which the support shaft of the second operating body 8 provided in the exterior part 17 is fitted. A push piece 73 is provided, and the second
By rotating the operating body 8, the lock rod 4 can be reciprocated between the fully extended position A and the door opening position B. The driving wheels 57 and 71 are fitted concentrically and freely into each other and are supported by bearing holes 74 and 75 provided in the cover plate 23 and the side plate 25.

A locking tool 81 is provided on the exterior parts 16 and 17. The locking tool 81 includes a retaining ring 84 on a cylindrical shaft 83 into which the support shaft 56 is fitted, and a retaining plate 86. The retaining ring 84 is provided with a flange around the flat plate portion, and a retaining groove 8 is formed by cutting out the lower end of the flange.
7 is provided, and by fitting the protruding piece 89 on the upper edge of the latching plate 86 into the latching groove 87, the first operating body 7 is restrained from rotating in its horizontal state and locked. sell. Note that the locking 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 the rotating plate 9 fits into the square cylinder shaft 94.
By fitting the drive pin 97 provided in the 5th to the notch hole 99 of the latching plate 86, the 12th to 1st
As shown in FIG. 3, as the rotating plate 95 rotates,
The upper and lower edges are pressed by the drive pin 97 and can move up and down. 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, that is, the square cylinder shaft 94, is moved to the locking plate 8.
They are elastically pressed at the upper and lower positions of 6, respectively. Note that the square tube shaft 94 of the locking tool 81 has a joint piece 103.
An emergency button 104 extends to the other exterior part 17 via the square tube shaft 94 of the interior part 16, and has a groove into which a coin or the like can fit.
A thumb turn 105 connected to the patch piece 103 protrudes.

On the other hand, the receiving plate 6 is attached to the stationary frame 5 facing the moving end of the door D, with one end thereof in contact with or apart from the door stop 5a, and the lock rod 4 and the release tool 10 are fitted into the base plate 111. A locking hole 112 is provided, and a guide portion 113 that bends outward is protruded from the inner edge of the locking hole 112, and a cavity V communicating with the locking hole 112 is formed in the stationary frame 5. 1 in the figure in Figures 5 to 7.
15 is a spring that presses the locking rod 4 forward, and 116 in FIGS. 9 and 12 is the retaining ring 8.
It is a torsion spring whose both ends are supported by the notches 98, 98 of No. 4, and which can hold the first and second operating bodies 7, 8 in a standard horizontal state.

Operation Next, the locking device 1 of the present invention uses this function 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 the locking device 1 The following describes an example of turning on and off electric appliances such as lighting fixtures and ventilation fans (not shown) using the .

The lock body 3 and the receiving plate 6 are attached to the door D and the stationary frame 5 as described above, and the switch S having the operating end S1 facing the door D is housed in the space V at the back of the string stopper hole 112, and The operating end S1 is pressed by the lock lever 4 only at the fully protruding position A of the lock lever 4, and the switch S can be turned 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 aligned with the reference shown in FIG. The lock lever 4 turns off the switch S by pressing the operating end S1 of the switch S.

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 drive wheel 57 after the rotation by the angle α, and the first lever 19 As shown in the figure, the lower pressure 61
By pressing the rear edge of the elongated hole 31, the lock rod 4 can be moved to the door opening position B, so that the door D can be opened and entry can be made. Note that the small angle α gives play to the first operating body 7 and prevents the lock rod 4 from immediately retreating due to its operation. Further, as described above, the protrusion 62 once pushes down the protrusion 53 as shown by the dashed line by the rotation of the first operating body 7, and then passes backward as shown by the solid line in FIG. , and as it passes, the locking tool 9 returns to its original state. Furthermore, when you release your hand from the first operating body 7 when entering the room, the first lever 19 is moved back by the torsion spring 116 and the tension spring 64, and upon its return, the pusher piece 61 is pressed against the locking rod 4. The stepped portion 12 of
In the vicinity of the incompletely protruding position C where the locking part 13 of the locking tool 9 is close to , the lock rod 4 can be projected to the full protrusion position A, that is, depending on the first operating body 7, the lock rod 4 can be
The lock rod 4 can be freely reciprocated without the locking tool 9 operating.

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 to open the door. Retract the lock lever 4 to position B. Note that when the lock rod 4 moves a distance corresponding to the gap g,
The projecting piece 37 of the release tool 10 is pressed against the front edge of the elongated hole 31 and retreats, and the receiving piece 39 slightly rotates the first lever 19 via the pushing piece 60, but as shown in FIG. When the second lever 20 is returned until the locking rod 4 reaches the incompletely protruding position C, the first lever 19 tilts forward as the release tool 10 moves forward, and the push piece 61 moves the position of the cam piece 53. Because it is passing through
The locking part 13 of the locking tool 9 moves upward and engages with the stepped part 12 of the lock rod 4, and the lock rod 4 is moved at the incompletely protruding position C.
can be restrained. 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. Note that the second operating body 8
By closing the door in the depressed state, the lock rod 4 is held in the incompletely protruding position C, and the switch S is kept in the ON state, and the lighted state is maintained while the room is occupied. After entering the room, use the thumb turn 105 to lock the room as described above.

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, while the door is closed by pulling the first operating body 7 after leaving the room. Therefore, when both the locking rod 4 and the release tool 10, which is the timing bolt 10a, come into contact with the guide portion 113 of the receiving plate 6,
The first lever 19 is pushed into the lock main body 3 to the vicinity of the door opening position B, and the first lever 19 is moved back to a position where the push piece 61 exceeds the cam piece 53 by the receiving piece 39 of the release tool 10. Note that the second lever 20 is in a forward tilted state. Next, just before closing the door, the locking rod 4 located on the closing door side first engages the locking hole 112 of the receiving plate 6.
By reaching the insertion position, the lock rod 4
The pushing piece 61 of the first lever 19, which is moved forward by the biasing force of the spring 115 and simultaneously moved by the tension spring 64, is pushed forward by the receiving piece of the retracted release tool 10 in the vicinity of the incompletely protruding position C. 39 to push down the cam piece 53 as described above.
The release tool 10 opens the first lever 19 via the first lever 19.
As shown in FIG. 7, the locking portion 13 is separated from the stepped portion 12, the locking rod 4 is inserted into the locking hole 112 to its fully extended position A, and the switch S is turned OFF.
Thereafter, by fitting the release tool 10 into the locking hole 112, the above-described standard state is restored.

Note that by rotating the thumb turn 105 and pushing up the locking plate 86 as described above after entering the room, the protrusion 89 moves into the locking groove 87 of the locking ring 84.
By being fitted into the locking tool 81, the locking tool 81 can lock the rotation of the first operating body 7 and the second operating body 8 and lock them. 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.
1 is not the exterior parts 16 and 17 but the main body part 15
It can be shaped into 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 body includes a locking tool that can lock the lock rod in the incompletely protruded position, and a locking device that engages the receiving plate when the door is closed. Since the lock is provided with a release tool that releases the lock by touching the lock, it is possible to change the operating state of the switch, for example, between the fully extended position and the incompletely extended position of the lock, and as a result, when entering the room, the power is turned off. It is easy to construct a device that can automatically turn on and off the lights, which can turn the lights on and turn off the lights reliably and automatically when leaving the room, and the release tool eliminates the need to rotate the operating body when closing the door. Since the light can be turned off by pulling the door, etc., many effects can be achieved, such as making it easier to operate the door and turn on/off the light.

In addition, in the lock device of the present invention, for example, the release tool 1
0 is formed so as to be divided into two by the dashed line x shown in FIG. Instead of the locking tool 9 of the above embodiment in which the locking rod 4 is directly locked, the locking tool 9 locks the second lever 20 in the backward tilted position, thereby preventing the locking rod 4 from being partially protruded. It can also be held at position C. Further, the first lever 19 and the second lever 20 may be configured to move the lock rod 4 by being brought into contact with, for example, the triangular portions 29 and 30 of the lock rod 4, unlike the rear edge of the elongated hole 31. It is possible, etc.
The locking device of the present invention can be modified into various embodiments,
In particular, it can be suitably employed as a locking device for an indoor door or the like that partitions a room occupied by one person, such as a hand-washing room, from the outside. Furthermore, by providing the locking tool 81 with a lock that can be locked with a so-called key, it can also be used for an external door that partitions indoors and outdoors.

[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. 6 is a sectional view taken along line A-A, and FIG.
The figure is a sectional view taken along the line B-B, FIG. 8 is a sectional view taken along the line C-C, FIG. 9 is a schematic exploded perspective view, FIG. 10 is a front view showing the release tool, and FIG. Figure 12 is a front view showing the lock, Figure 13 is a diagram showing its action, Figures 14 to 17 are front views showing the action of the lock body, and Figure 18 shows the door closed when leaving the room. It is a line diagram. 1...Lock device, 3...Lock body, 4...Lock rod, 5
... Stationary frame, 6 ... Receiver plate, 7 ... First operating body,
8... Second operating body, 9... Locking tool, 9a... Arm, 10... Release tool, 10a... Timing bolt, 12... Step portion, 13... Locking portion, 20...
...Second lever, 54...Spring, A...Full protrusion position, B...Door open position, C...Incomplete protrusion position, D
……door.

Claims (1)

[Claims] 1 A lock body that is attached to a door and has a lock lever that can move between a fully protruding position that protrudes forward from the door and an open position where the door can be opened, and that has a stepped portion that faces forward, and a stationary frame that The lock main body includes a receiving plate into which the lock rod can be fitted, a spring that biases the lock rod toward the protruding side, and a spring that is disposed on one side of the door and is connected to the lock via a first lever. a first operating body that engages with the lever and moves the lock lever from the fully extended position to the door open position when operated; a first operating body that engages with the lock lever via a second lever disposed on the other side of the door; A second operating body that moves the lock rod from the fully extended position to the door opening position when operated, the front part of which is pivotally supported so as to be tiltable up and down, is biased toward the lock rod by a spring, and is biased toward the lock rod. A locking tool having a locking portion that locks the lock rod at an incompletely protruding position between the fully protruding position and the door opening position by locking the step portion provided therein; A release tool is provided that is pushed by a first lever to protrude from the lock body and is pushed inward by contact with a receiving plate when the door is closed; The release tool includes a cam piece having no shape and one side piece folded upward, and the release tool operates the first lever by the pushing, and the protruding piece provided on the lever pushes down the cam piece. The locking device releases the locking of the locking rod by the locking tool and enables the locking rod to move to a fully extended position.