JPH0529319Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to the structure of a lock having a knob or knob for operating a door.

[Conventional technology]

Conventionally, this type of lock has a knob for opening and closing both indoors and outdoors, and a lock knob is attached to the tip of the indoor knob, and locking and unlocking are performed by rotating the lock knob. A dedicated locking mechanism is installed separately from the shaft that connects the two.

[The problem that the idea attempts to solve]

As mentioned above, in the conventional structure, a separate locking mechanism is attached to the outer periphery or side of the shaft that connects the indoor and outdoor knobs, and various structures have been put into practical use for this purpose, but these Because it has a separate special mechanism for locking, it has a large number of parts, a complex structure, and many manufacturing steps, making it expensive.

[Means to solve problems]

This invention relates to a lock that has the same functions as conventional products despite its simple and easy-to-manufacture structure with a small number of parts. The knob 3 is rotatably attached to an outdoor base 7a located on the outdoor side, a shaft 2 having a cross-sectional shape having a stepped portion 4 is provided on the knob 1, and the tip 2a of the shaft 2 is extended toward the outdoor side. The knob 3 is fitted to the shaft 2, and the lock plate 6 biased by a spring 5 is brought into contact with the stepped portion 4 of the shaft 2 between the bases 7 and 7a, and the spring 5 holds the lock plate 6 in the locked position. At the same time, the base 7 on the indoor side is provided with a recess 8 that fits with the movable piece 9 protruding from the shaft 2 or the knob 1, and when the recess 8 and the movable piece 9 are engaged, rotation of the shaft 2 is stopped, The stepped portion 4 moves the lock plate 6 to the unlocked position by the rotation of the recess 8, the movable piece 9, and the shaft 2 at the time of opening.

Further, the recess 8 of the base 7 located on the indoor side and the movable piece 9 urged in the direction of the recess 8 by the spring 12 are fitted through the inclined part 10, and when the knob 1 is pulled, the movable piece 9 slides on the inclined portion 10 and is disengaged.

Furthermore, make a small hole 11 in the center of the knob 3 on the outdoor side,
The tip 2a of the shaft 2 fitted with the knob 3 and the small hole 1
1 are opposed to each other, and by pushing the shaft 2 through the small hole 11, the recess 8 and the movable piece 9 are disengaged from each other.

[Effect]

Since the shaft 2 of this invention has a cross-sectional shape with a stepped portion 4, when the outdoor knob 3 fitted to the shaft 2 is rotated, the shaft 2 can be rotated together with the knob 3. Conversely, when knob 1 is rotated, knob 3 is rotated together with shaft 2.

A locking plate 6 is in contact with the stepped portion 4 of the shaft 2 between the bases 7, 7a, and the locking plate 6 is held in the locked position by a spring 5. When the shaft 2 is rotated by the knob 1 or knob 3, the lock plate 6 is moved by the stepped portion 4 of the shaft 2 against the spring 5, and the lock plate 6 is moved to the unlocked position.
You can open the door.

On the other hand, since the shaft 2 and the knob 3 are held together by fitting, the shaft 2 can be pulled out or pushed in at will. At the position where the recess 8 formed in 7 is fitted, the shaft 2
cannot rotate, and therefore the lock plate 6 cannot be operated. Furthermore, when the shaft 2 is pulled out indoors by the knob 1, the movable piece 9 and the recess 8 of the base 7 are disengaged from the mating position, so the shaft 2
can be rotated freely, and the lock plate 6 can be moved against the force of the spring 5.

By the way, in addition to the embodiment in which the movable piece 9 that fits into the recess 8 of the base 7 of this invention is constructed integrally with the shaft 2 and the knob and moves together, in other embodiments shown in the drawings, the movable piece 9 is constructed as a single unit. The movable piece 9 is urged in the direction of the recess 8 by a spring 12, and the recess 8 and the movable piece 9 are fitted through an inclined portion 10. Therefore knob 1
After the fitting is released by the pulling action, the recess 8 and the movable piece 9 will not fit again unless the spring 12 is compressed, and the trouble of the shaft 2 being inadvertently unable to rotate can be prevented.

Furthermore, in order to unlock the door from the outdoor side, a small hole 11 is made in the center of the knob 3 on the outdoor side, and the small hole 11 and the tip 2a of the shaft 2 are made to face each other. If an alternative shaft or flat plate is inserted and the shaft 2 is pushed, the recess 8 and the movable piece 9 are disengaged, and the shaft 2 can be rotated by unlocking from the outside.

〔Example〕

7 is a base fixed to an opening/closing door etc. and located on the indoor side; 7a is an outdoor base located on the outdoor side; 1 is a knob on the indoor side that is rotatably attached to the base 7;
3 is an outdoor knob rotatably attached to the outdoor base 7a. 2 is attached to knob 1 and tip 2a
The shaft 2 is extended to the outdoor side, and the shaft 2
The knob 3 on the outdoor side is fitted into the shaft 2, and the knob 3, the shaft 2, and the knob 1 rotate together.

Reference numeral 6 denotes a lock plate that is in contact with the shaft 2 between both bases 7 and 7a, and 5 is a spring that always projects the lock plate 6 and urges it to the locked position. It is in contact with the stepped portion 4,
When the shaft 2 rotates, the stepped portion 4 is driven to retract the lock plate 6 and holds the lock plate 6 in the unlocked position against the spring 5.

9 is a movable piece protruding from the knob 1 or shaft 2 rotatably attached to the base 7, 8 is a recess formed in the base 7, and when the shaft 2 is pushed in, the movable piece 9 and the recess 8 fit together. and shaft 2
stop rotating. Further, when the shaft 2 is pulled out indoors, the movable piece 9 and the recess 8 do not fit together, and the shaft 2 can be rotated by the knob 1 or the knob 3 to drive the lock plate 6.

The movable piece 9 in the embodiment shown in the figure is not constructed integrally with the shaft 2 or the knob 1, but is constructed as a separate member from the knob 1. 12 is a spring that urges the movable piece 9 in the direction of the recess 8 when the movable piece 9 and the recess 8 are fitted; 14 is a push button that operates the movable piece 9 against the spring 12; 10
is an inclined part formed at the fitting part between the recess 8 and the movable piece 9; when the knob 1 is pulled, the movable piece 9 moves to the inclined part 1.
0 while compressing the spring 12, and eventually the knob 1 and shaft 2 are pulled out to a position where the movable piece 9 and the recess 8 cannot fit together. Further, when the knob 1 is pushed in while pressing the push button 14, the recess 8 and the movable piece 9 are fitted together. When the movable piece 9 is made of a material having spring properties, the member corresponding to the spring 12 can be formed from a portion of the movable piece 9.

11 is a small hole drilled in the center of knob 3 on the outdoor side; 2
a is the tip of the shaft 2 fitted into the knob 3;
The small hole 11 and the tip 2a of the shaft 2 face each other within the knob 3. Therefore, if you want to disengage the recess 8 of the base 7 and the movable piece 9 from the outside and operate the lock plate 6, you can push the key or a suitable shaft or flat plate through the small hole 11, and the shaft 2 When the recess 8 and the movable piece 9 are disengaged, the lock plate 6 can be moved to the unlocked position by rotating the knob 3.

13 is a spring attached to the shaft 2;
The shaft 2 urges the movable piece 9 toward the recess 8 of the base 7, and when the push button 14 is lightly pressed when the movable piece 9 and the recess 8 are aligned, the shaft 2 and the knob 1 spring together. Moves with force of 13, movable piece 9
and the recess 8 are securely fitted.

〔effect〕

As described above, the shaft 2 of this invention has a cross-sectional shape with a stepped portion 4, and the knob 3 on the outdoor side and the shaft 2 are in a fitted state without being fixed.
can be pushed in and pulled out arbitrarily, and the shaft 2
In connection with this, it was possible to install a locking mechanism using the recess 8 and the movable piece 9. For this, knob 3 and knob 1
An interlocking mechanism using a shaft that rotates together with the
There is no need to construct a separate locking mechanism for locking and unlocking, and the structure is extremely simple.

Further, the function of this type of conventional lock is that the lock plate 6 can be moved forward or backward by rotating the knob 3 or knob 1 located indoors or outdoors. By operating and locking the knob 1 part on the indoor side, the lock plate 6 can be moved forward or backward by the knob 3 located indoors or outdoors.
Make it impossible to do it with Yatsukumi 1. It can be unlocked from indoors or outdoors as needed. However, this invented product can be operated in the same way as conventional products, and the locking/unlocking structure can be constructed in relation to a single shaft 2, so the number of parts has been greatly reduced. The result is a highly practical lock that is cheaper and easier to manufacture than conventional products.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of this device, FIG. 2 is a sectional view showing the operating state, and FIG. 3 is a longitudinal sectional view. 1... Indoor side knob, 2... Shaft, 2a
...Tip of the shaft, 3...Knob on the outdoor side, 4...
... Stepped part of shaft, 5 ... Spring, 6 ... Lock plate, 7 ... Base on indoor side, 7a ... Outdoor base on outdoor side, 8 ... Recessed part, 9 ... Movable piece, 10 ...
Inclined part, 11... small hole of knob, 12... spring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The knob 1 is rotatably attached to the base 7 located on the indoor side, the knob 3 is rotatably attached to the outdoor base 7a located on the outdoor side, and the stepped portion 4 The knob 1 is provided with a shaft 2 having a cross-sectional shape of A lock plate 6 biased by a spring 5 is brought into contact with the lock plate 6, and the spring 5 holds the lock plate 6 in the locked position. A recess 8 is provided to fit together, and when the recess 8 and the movable piece 9 are engaged, rotation of the shaft 2 is stopped, and when the recess 8 and the movable piece 9 are separated, the step 4 resists the spring 5 due to the rotation of the shaft 2. A lock characterized by moving a lock plate 6 to an unlocked position. (2) The recess 8 of the base 7 located on the indoor side and the movable piece 9 urged in the direction of the recess 8 by the spring 12 fit together via the inclined part 10, and the fitting is stopped by pulling the knob 1. The lock according to claim 1 of the utility model registration claim, which is characterized in that it can be removed. (3) Drill a small hole 11 in the center of the knob 3 on the outdoor side, and connect the tip 2a of the shaft 2 with the knob 3 fitted to the small hole 1.
Scope of claim for utility model registration No. 1 facing 1.
The lock described in Section 2 or Section 2.