JPS6256309B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology provides a lock structure in which a pair of lock knobs and a key of a lock device having a double lock structure can be operated in conjunction with each other. belongs to the technical field of

<Summary of the gist> This invention has a lock knob that is independently linked to each of a pair of dead bolt opening/closing devices, and a lock knob provided on the inner and outer surfaces of the door, and an operating rod connected to a key hole, through which the lock knob is inserted. This invention relates to a locking device, in particular, a pair of operating rods each having a rotating link that operates integrally with each other, each having a pin at both ends and a hook protruding flush with the rotating link. Each pin of the link has a space in the convex part of the casing to allow the hook to pass through the casing in return rotation, and is positioned in a point-symmetrical position to each other in a hole at one end of a pair of parallel links that slide and move up and down. This invention relates to a locking device in which a hook of each rotating link is attached to a hook abutting member provided at the other end of the parallel link via a leaf spring member so as to be able to abut on and separate from the hook. be.

<Prior Art> Recently, in response to requests for crime prevention, a pair of dead bolts have been installed in door locking mechanisms installed at the entrances and exits of houses, etc., to strengthen the maintenance of the locked state.

To deal with this, in a case where two locking devices each having one dead bolt are installed independently and side by side, when locking the door, the locking device of each lock must be activated individually. I had to lock the doors.

<Problem to be solved by the invention> Therefore, when performing a lock operation, locking and unlocking operations are required twice, which is extremely cumbersome in practice, and it is often necessary to perform only one lock operation and then lock the other. This has the disadvantage of not being able to do it or forgetting to do it, and the inherent advantage of having a pair of dead bolts cannot be taken advantage of.

However, if a pair of locking devices are simply connected by a link to form a so-called twin type design, a series of locking operations can be achieved, but unlocking will also be a series of locks at the same time, and therefore one lock mechanism cannot be broken. In this case, it was possible to release the lock without breaking the other lock mechanism, and on the contrary, there was a problem in that it hardly functioned in terms of crime prevention.

<Object of the Invention> The object of the present invention is to solve the problems of the door locking device based on the above-mentioned prior art as a technical problem, and to solve the problem of the door locking device based on the above-mentioned prior art. A pair of rotating links are operated in conjunction with each other so that locking is automatically achieved by locking a pair of dead bolts,
It is an object of the present invention to provide an excellent locking device that can be unlocked independently and enhances safety, thereby benefiting the field of security technology application in the construction industry.

<Means/effects for solving the problems> In order to solve the above-mentioned problems, the structure of the present invention, which is based on the above-mentioned claims, includes a pair of dead bolt opening/closing devices attached to the door. When one of the dead bolts of the attached door lock mechanism is activated, the other one is simultaneously activated to automatically double lock the door, and when unlocking, the pair of dead bolts is individually activated. In addition, by attaching leaf spring members to both ends of the parallel link, an elastic force is applied to the pin of each rotating link, and the lock is activated to fully utilize the advantages of the double lock mechanism. engages the hook abutting member and urges it to return to the initial position, ensuring locking operation and resetting at unlocking, and
This was achieved through technical measures that made it easy to do so.

<Embodiment - Configuration> Next, one embodiment of the present invention will be described below based on the drawings.

In the embodiment shown in Figs. 1 and 2, 1 is a door body, which is designed for right-hand use and is installed at a predetermined part of a house, and a box seat 3 is provided on the inner surface 2 of the door body 1. A door handle 4 is provided at the lower part thereof, and a pair of lock knobs 5, 6 are provided at the upper part.

On the other hand, on the outer surface 2' of the door body 1, there are a door handle 7 and a thumb turn 4' directly above the door handle 7 at the bottom, and key holes 8 and 9 corresponding to the lock knobs 5 and 6 at the top through the seats 3'. It is provided.

Further, at predetermined positions on the upper and lower sides of the door body 1, a set of well-known dead bolt opening/closing devices 10, 10' are installed.
The upper dead bolt opening/closing device 10 is provided with a dead bolt 11 that can be moved forward and backward, and the lower dead bolt opening and closing device 10' is also provided with a dead bolt 12 that can be moved forward and backward.
A latch bolt 13 is provided at the bottom thereof.

As shown in Figures 4 and 5, the box seat 3 attached to the inner surface 2 of the door body 1 is of a cartridge type, and can be freely changed between left-hand and right-hand by simply flipping the front and back sides. A thin locking device 14 that can be freely set and reset is built in, and rotatable operating rods 15, 16 are integrally connected to the locking knobs 5, 6 and extend outward.
are inserted into the following holes of the locking device 14 and are mechanically linked with the dead bolt opening/closing devices 10, 10' inside the door body 1, and furthermore, the tips of each of the operating rods 15, 16 are fitted with a key. They are connected to the holes 8 and 9, respectively, and can be locked and unlocked using a key.

Therefore, as shown in FIGS. 5 and 6, the operating rod 15,
The front and back casings 17, 17' of the lock device 14 into which the locking mechanism 16 is inserted are provided with holes 18, 19 and 20, through which the operating rods 15, 16 can be inserted, at intervals corresponding to the spacing between the operating rods 15, 16, respectively. 21 is drilled.

Then, on the inner surface of the front casing 17, a sixth
As shown in the figure, vertically elongated inward protrusions 22, 2 are formed at a set interval from both edges at the center in the longitudinal direction.
2 is press-molded, and as shown in FIG. 7, on the inner surface of the casing 17' on the back side, similarly vertically elongated inward protrusions 23, 23 are press-molded in the center at a set interval from the edge. Molded.

Thus, the casing 17 of the locking device 14,
In the space between 17' there is a disc-shaped pivot link 24, 2 for each of the actuating rods 15, 16.
4', as shown in FIGS. 8 and 9, has a pivot member 25 installed inside each end, and the actuating rods 15, 16.
With the rotation of the pivot links 24, 24', the pivot links 24, 24' are also rotated integrally via a hook-shaped key 26 of each pivot member 25.

The rotation links 24, 24' each have a pair of bending pins 27, 28 which are bent at right angles to set positions on their respective outer peripheries and spaced at set intervals in the circumferential direction;
27', 28' are integrally formed, and the bending pins 27, 28, 27', 28' are connected to the pivot member 25.
180° on the opposite side, each rotation link 2 at the set position on the outer circumference
Hooks 29 and 2 are flush with 4 and 24' respectively.
9' is formed.

Reference numerals 30 and 30 shown in FIG. They are arranged parallel to each other, and each has a rectangular hole 3 extending from the bottom to the side at both ends.
2 and 33 are bored in the form of slits.

Each parallel link 30 has a casing 17,
17', as shown in FIG. 7, is guided in a narrow manner between the side wall and the protrusion 23, and as shown in FIG. 6, the bottom surface is placed on another protrusion 22. By sliding it onto the back surface of the front casing 17, a space slightly larger than the thickness of the hooks 29, 29' of the rotation links 24, 24' is provided between the bottom surface and the back surface of the top plate of the casing. Hook 29,2
9' can be slid freely.

Furthermore, hairpin-shaped leaf spring members 34 and 35 shown in FIG. 8 are inserted into both ends of the U-shaped cross-sectional groove of each of the parallel links 30 and 30, with the open portions facing outward. , the inner tip of one leaf spring member 34 is shaped so that it can be bent to the lower inner side through the hole 32 of the parallel link 30 and protrude inwardly, and the bending pin of the rotation link 24, 24' 27, 27' into each hole 32, and bend the bent pin 2.
8 and 28' pinch and engage the distal end of the parallel link 30, so that the parallel link 30 can be moved in its length direction.

The bent portion at the tip of the leaf spring member 34 is also adapted to apply a pressing force to the bending pins 27, 27'.

Further, the inner tip of the forked portion of the other leaf spring member 35 elastically clamps the J-shaped hook abutting member 36 between the inner end of the groove portion of the parallel link 30 having a substantially U-shaped cross section. It is made possible to do so.

The downwardly extending portion of the tip of the hook abutting member 36 protrudes from the hole 33 to the lower side of the parallel link 30 so as to be able to come into contact with the hooks 29, 29' of the rotation links 24, 24'.

Thus, the rotation links 24, 24' and the parallel links 30, 30 are arranged in a positional relationship as shown in FIG.
is provided between the casings 17, 17'.

In addition, 37, 37... shown in FIG. 2 are screws,
Seats 3, 3' and box seat 3 are clamped and fixed to door 2, and 38, 38' shown in FIGS. 8 and 9 are bolt release slits provided in pivot links 24, 24'.

<Embodiment - Operation> In the above structure, after the door body 1 is closed, the door body 1 is opened by manually rotating only one of the lock knobs 5 or 6 as indicated by the arrow in FIG. Lock.

In this case, the effects are substantially the same when the lock knobs 5 on the upper and lower sides of the figure are manually rotated and when the upper lock knobs 6 are manually rotated. The mode of manually rotating and locking will be explained.

That is, when the lock knob 5 is manually rotated in the lock direction shown by the arrow in FIG.
An operating rod 16 integrally connected to the knob 5 locks the lock.
Rotates simultaneously in the same direction as knob 5.

Then, when the operating rod 16 rotates, the 9th to 1st
As shown in FIG. 1, a lower rotating link 24 with a pivot member 25 is inserted between the casings 17 and 17' of the lock device 14 of the box seat 3 on the operating rod 16. ' is the key 26 of the pivot member 25
It rotates integrally with the operating rod 16 in the locking direction as shown by the arrow in FIG.

Therefore, the bent pin 2 of the pivot link 24'
Reference numeral 7' denotes a leaf spring member 34 that fits into a hole 32 provided at the lower end of the parallel link 30 on the left side of the figure from the inside of the parallel link 30, raises the parallel link 30, and is inserted into the parallel link 30. and presses the tip of the leaf spring member 34 outward in the direction of the arrow shown in FIG. 9 against the elastic force as the rotation link 24' rotates. go.

Further, as the rotation link 24' rotates, the parallel link 30 moves in the direction of the arrow in FIG. 10 through the engagement between the bent pin 27' and the hole 32.
It slides while being guided by one protrusion 23 provided on one side wall of the casing 17' and the side edge of the casing 17', and the other protrusion 22 allows a space slightly larger than the thickness of the hook 29 to be connected to the casing 17. It rises from the convex portion 22 in a floating position.

On the other hand, the bent portion at the tip of the hook abutting member 36, which is clamped and supported inside the parallel link 30 by the leaf spring member 35 inserted into the upper part of the parallel link 30, is attached to the hook 29 of the upper rotating link 24. Since they are in contact with each other, as the parallel link 30 slides upward, the rotating link 24 moves as shown by the arrow in FIG.
It rotates in the same direction as the rotation link 24' rotates.

Furthermore, the bending pin 27 of the rotation link 24 is fitted into the hole 32 bored at the upper end of the other parallel link 30 from the side as shown in FIG. While being pressed outward against the elastic force, the right parallel link 30 is connected to the casing 17 and through the engagement of the bending pin 27 and the hole 32.
The rotating link 2 is guided by the other side wall surface of the casing 17' and the other protrusion 23 provided on the side edge of the casing 17', and is in contact with the protrusion 22 in a floating state.
As 4 rotates, it slides and descends as shown by the arrow in Figure 10.

Therefore, the peripheral edges of the rotation links 24', 24 and the bottom surfaces of the parallel links 30, 30 do not interfere with each other due to the sufficient space between each parallel link 30 and the inner surface of the casings 17, 17'.

Therefore, the other end of the parallel link 30 on the right side in the figure is parallel to the bent portion at the tip of the hook contact member 36, which is supported by the other leaf spring member 35 inside the parallel link 30. Hole 33 of link 30
The protrusion through the parallel link 30 contacts the hook 29' of the rotating link 24' and the parallel link 30 slides downward, so that the rotating link 24' rotates without any problem.

Therefore, the rotation of the lower rotation link 24' is equal to the rotation of the upper rotation link 24 and the parallel links 30, 3.
0 slide will occur.

Then, as the manual rotation of the rotation link 24' further progresses, as shown in FIG. The contact with the hook 29 is gradually released.

At this stage, as shown in FIG. 11, the bending pins 28', 28 of the pivot links 24', 24 begin to abut against the outer edge surfaces of the ends of the parallel links 30, 30, causing the parallel links 30, 30 to Press forcefully to continue sliding.

As shown in FIG. 11, when the hook 29 of the upper rotating link 24 separates from the hook abutting member 36 of the left parallel link 30, the rotating link 2
4 almost stops, but the bending pin 27 of the rotary link 24, which is connected to the manually rotated rotary link 24' via the parallel link 30 and rotates at the same time, At the final stage of rotation, the bending pin 27
Due to the elastic force of the leaf spring member 34, which had accumulated elastic energy due to the contact pressure of the pins 27', 2
7 inwardly, and the rotation links 24, 2
4', as shown by the arrow in FIG.
The pivot link 24 is rotated against the frictional force, grease viscosity, etc. until it abuts against the end inner wall of the casing 17, 17'.

At this stage, the manual rotation of the lock knob 5 of the actuating rod 16 and the linked rotation of the actuating rod 15 are completed; The dead bolt opening/closing devices 10' and 10 are operated to close the dead bolt 1.
2 and 11, the door body 1 is double locked at the same time.

In this case, it is mechanically clear from the above-mentioned operation that the lock knob 5 or 6 can be operated in the same manner to effect double locking.

Further, although the above embodiment is a case where the lock knob 5 or 6 is operated from the inner surface 2 side of the door body 1, the operating rods 15 and 16 can be operated by being connected to the key holes 9 and 8, respectively. Therefore, by inserting a corresponding key (not shown) into one of the keyholes 9, 8 on the outer surface 2' of the door body 1, and rotating the operating rods 15, 16 in a predetermined manner, the above-mentioned operation can be performed. Similar to the embodiment, dead bolt opening/closing devices 10, 10'
can operate at the same time to perform double lock.

Therefore, the door body 1 can be double locked in a single action from either the inside or the outside.

Next, the operation and effect of the lock knobs 5 and 6 keys when opening the door body 1 will be explained below.

In this case, first turn the lower lock knob 5 to the 11th
If the rotation is reversed from the locked state shown in the figure to the initial unlocked state shown in FIG.
The actuating rod 16 rotates in the opposite direction accordingly, so that
The pivot link 24', which is integral with the operating rod 16, also rotates together as shown in FIG.

In this process, the bending pin 27' of the lower rotation link 24' is locked in the hole 32 at the lower end of the parallel link 30 on the left side of the figure in FIG. 24', the left parallel link 30 moves to the 12th position in the opposite direction to the above-mentioned mode.
As shown by the arrow in the figure, it slides down and returns to the initial position of the unlocked state shown in FIG.

At this time, as described above, the parallel link 30 on the right side of the figure has a space between it and the casing 17 through which the hook 29' can pass due to the inner convex portion 22 formed on the front casing 17. 12, the hook 29' of the rotating link 24' smoothly rotates and rises between the back surface of the right parallel link 30 and the casing 17 in FIG. Link 3
Therefore, even if the rotating link 24' rotates, it will not interfere with the parallel link 3 on the right side of the figure.
0 remains stopped in the states shown in FIGS. 11 and 12.

Therefore, in the final state, as shown in FIG. 12, the hook 29' overlaps the parallel link 30 at the Y portion on the back side of the parallel link 30 on the right side in the figure, and the right parallel link 30 is Maintain the stopped state in the posture shown in Figure 11, and leave the parallel link 3 on the left side.
0 is lowered from the posture shown in FIG. 11 to the initial posture shown in FIG. 9 through the posture shown in FIG.

During this time, the dead bolt opening/closing device 10' is operated by the rotation of the operating rod 16, and the lock by the dead bolt 12 is released.

However, in this state, as shown in FIGS. 11 and 12, the parallel link 30 on the right side of the figure is stopped and does not slide, so the rotation link 24 does not rotate and the locked state by the other dead bolt 11 is released. Therefore, the door body 1
remains locked.

Therefore, in this state, next turn the upper lock knob 6.
When the lock knob 6 is rotated from the locked position to the unlocked position, the operating rod 15 also rotates in the opposite direction, and the rotation of the operating rod 15 operates the dead bolt opening/closing device 10 to close the dead bolt. 11 is also released from the locked state, and the upper rotating link 24 integrated with the operating rod 15
rotates.

As a result of the rotation of the upper rotation link 24, in FIG. Since the bending pin 27 of the movable link 24 is engaged with the bending pin 27, the right parallel link 30 slides up to the state shown in FIG. 9 due to the engagement of the bending pin with the hole 32.

In this process, the right parallel link 30
A tip end portion of the hook contacting member 36, which is held between the inner surface of the parallel link 30 by the lower leaf spring member 35 inserted therein, and which extends from the hole 33 of the parallel link 30 to the back side of the parallel link 30. interferes with the outer periphery of the other rotating link 24', so it slides up while elastically abutting against the elastic force of the leaf spring member 35, and the lower side of the right parallel link 30 and the casing 17 It engages with the hook 29' of the rotation link 24' located in the space between the 24' and 24', but it moves over the hook 29' by elastic tracing against the elastic force of the leaf spring member 35 and returns to the final position. Now, rotation link 2
The state of contact of the parallel link 30 with the hook 29' of 4' changes instantaneously to the engagement state of the hook portion 29' with the hook contact member 36 due to the spring back of the hook contact member 36, thereby ensuring that the state shown in FIG. will be reset to its initial state.

In addition, due to the reverse rotation of the upper rotating link 24, the parallel link 30 on the left side of the hook 29 is rotated in the opposite direction.
The abutment from above against the hook abutting member 36 is also reliably reset, so that the parallel link 3
0, 30 and the rotation links 24, 24' are completely reset to the initial state shown in FIG.

Further, the locked state of the door body 1 is also completely released by the above-described operation, and the door body 1 can be opened freely.

Therefore, even if a trespasser or the like attempts to enter, in order to unlock the door body 1, each of the dead bolts 11 and 12 must be unlocked twice, and the door body 1 must be unlocked twice. The security effect of double locking is preserved.

Therefore, in this invention, the lock device 14
As mentioned above, is a cartridge type, and can be used for left-hand doors and right-hand doors by simply changing the front and back sides and installing the same one, and the operation in this case is the same as that described above. .

It goes without saying that the embodiments of the present invention are not limited to the above-mentioned embodiments; for example, the rotating link may be bar-shaped instead of circular, and the parallel link may not be U-shaped in cross section, but may have various designs. Various aspects can be adopted, such as:

Although the lock device of the present invention is of a double lock type, it can also be adapted to a triple lock type depending on the design, which is equivalent in the spirit of the invention.

<Effects of the Invention> As described above, according to the present invention, a pair of rotary links integrally connected to each of a pair of operating rods that are inserted into and engaged with a cartridge type locking device operate in conjunction with each other. As a result, two dead bolts attached to doors installed at the entrances and exits of houses, etc. can be easily locked with a single touch of a lock knob, key, etc., and double locking is ensured. Excellent effects can be achieved.

Therefore, the trouble of having to perform the locking operation twice is eliminated, and there is no possibility of forgetting to set the double lock as in the conventional case, and an excellent effect is achieved in which the original function of the twin lock is reliably utilized.

In particular, the above points are effective when you need to lock your phone in an emergency and go out, or when an elderly person or a young child performs the lock operation.

Moreover, the lock device of the present invention has two keyholes of different shapes, so that it does not interfere with the free selection of making the keys of different shapes. It is effective for

Furthermore, although the locking device of the present invention can lock a pair of dead bolts with a single touch, the locking mechanism of the pair of dead bolts may be damaged by requiring unlocking to be performed for each dead bolt. Even if the lock is broken, the lock cannot be unlocked unless the locking mechanism of the other deadbolt is also broken, so the crime prevention effect of having two deadbolts in order to strengthen crime prevention by allowing the lock to be unlocked through step-by-step operations is retained. This produces an excellent effect.

In this invention, the lock knobs inside and outside the door, and the rotating links connected to the pair of upper and lower operating rods of the lock device through which the operating rods connected to the key hole are inserted, are attached at both ends. As described above, since the double lock has a pin and a hook that protrudes flush with the pivot link and can be freely engaged point-symmetrically with the hole at one end of the pair of parallel links on both sides, The effect is ensured by a lock knob or key operation for the dynamic link.

Since the parallel link, which is formed between the hooks provided on the pair of rotating links and the casing through the convex part of the casing with a space slightly larger than the thickness of the hooks, can slide freely on one side. Even if an unlocking action is performed on the pivot link, only one dead bolt of the pivot link that rotates in the opposite direction to the unlocking side is unlocked, and the hook of the pivot link is connected to the casing and the bottom of one of the corresponding parallel links. In order to freely pass through a space slightly larger than the thickness of the hook formed between the hook and the back surface of the hook, the parallel link does not operate, and the other rotating link does not rotate.
The other deadbolt is not unlocked and the door body cannot be unlocked, requiring further operation of the locking knob or key to unlock the other pivot link, resulting in a double lock when locking. Since the lock must be unlocked once each time the lock is unlocked, the above-mentioned crime prevention function is maintained, which is an excellent effect.

In addition, each parallel link is provided with a leaf spring member for the pin and hook of the rotating link, which ensures the biasing force at the end of the stroke of the rotating link when the dead bolt is locked during locking. When the other rotating link is rotated when unlocking, the leaf spring member can be instantly reset against the hook by its spring back at the stroke end when the parallel link is rotated by the pin, and everything is initialized. The excellent effect of being able to automatically return to the original state is achieved.

Furthermore, the locking device can be designed as a cartridge type, and in this case, it does not matter whether it is installed on the front or the back, so it has the excellent effect of being compatible with both left-hand and right-hand doors. .

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a schematic side view of the entire door body locking mechanism, FIG. 2 is a side view of the door body including the lock knob, and FIG.
Figures 4 and 5 are partial back, sectional and perspective views of the cartridge mounted on the seat, Figures 6 and 7 are perspective views of the casing, Figure 8 is an enlarged perspective view of the parallel link and rotation link, and Figures 9 and 7 are perspective views of the casing. Figures 10, 11, and 12 are operational front views. 10,10'...Dead bolt opening/closing device, 5,6
...Lock knob, 8, 9...Key hole, 15, 16
...Operating rod, 14...Lock locking device, 24, 24'...
Rotating link, 27, 28, 27', 28'...pin,
29, 29'... Hook, 17... Casing, 30
...Parallel link, 32, 33...hole, 34...other plate spring member, 35...one plate spring member, 36...hook contact member, 22...convex portion.

Claims (1)

[Claims] 1. In a locking device, which is connected to each of a pair of dead bolt opening/closing devices and has an operating rod inserted therein, which is connected to the lock knob and key hole inside and outside the door, The rotation link integrally has a pin at each end and a hook protruding flush with the rotation link,
The pins of each rotating link are point-symmetrically engaged with holes at one end of a pair of parallel links that slide with a convex portion formed on the inner surface of the casing to provide a space that allows the hook to rotate and pass through the casing. A hook abutting member that can be brought into contact with and separated from the hook of each rotating link while being attached to the other end of each parallel link is attached via one leaf spring member installed inside the other end of each parallel link,
The other leaf spring member is inserted into the hole at one end of the parallel link that is engaged with the pin of the rotating link of each of the parallel links, and applies an elastic force to the pin. A lock device featuring: