JPH116348A - Lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock in which an arbitrary manipulating means can be selected from a plurality of kinds of manipulating means and fixed thereto. SOLUTION: A latch 8 is transferably fitted to lock cases 2 (2a, 2b, 2c) so as to be removably fixed at a receive member. An actuating means of the latch is built in the lock case 2 to detachably engage with the latch 8 and controllably set by a manipulating means 8 provided at the outside of the lock case 2. In this case, a plurality of parts 30, 33, 34 fitted to fitting parts of respective manipulating means are provided to enable selection of a plurality of manipulating means 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock used for an indoor door, an entrance door or a gate.

[0002]

2. Description of the Related Art As a conventional lock, a latch is movably provided on a lock case so as to be releasably engageable with a receiving member side, and the lock case is provided with a latch which is detachably engaged with the latch. In some cases, the operating means is built-in, and the latch operating means can be operated by operating means provided outside the lock case.

[0003] As the operating means, for example, a push-pull type operating by pushing one of a pair of handles provided inside and outside the door and pulling the other, and a lever handle is swung up and down. Different types of doors are used depending on the use of the door, such as a lever-handle type that is operated by operating it or a grip-type that is operated by rotating a knob (knob). Is the current situation.

[0004]

In a conventional lock, only any kind of operating means can be attached, and the latch operating means can be operated by a dedicated operating means. That is, the push-pull type can be attached with a push-pull handle, and the other lever-handle type cannot be attached. Also, in the lever-handle type lock,
Similarly, no other operating means can be attached.

Therefore, the above-mentioned conventional lock has a drawback that it lacks versatility. As a result, locks corresponding to the respective operation means must be manufactured and managed, and the number of parts becomes very large, and handling is very troublesome.

An object of the present invention is to provide a lock in which an arbitrary operation means can be selected from a plurality of kinds of operation means and can be attached by paying attention to the above-mentioned drawbacks of the prior art.

[0007]

The technical means taken by the present invention to achieve the above object is that a latch is movably provided on the lock case so as to be releasably engaged with the receiving member side, The lock case has a built-in latch operating means which is removably engaged with the latch, and the lock operating means is operable by operating means provided outside the lock case. The operating means is provided with a plurality of engaged portions that engage with the engaging portions of each operating means so that a plurality of types of operating means can be selected.

Further, a latch is provided on the lock case so as to be reversible and the tip side thereof is provided so as to be releasably engageable with the receiving member side. In a lock having a built-in latch operation means which is detachably engaged with the latch, and which is operable by an operation means provided outside the lock case, the latch operation means includes a plurality of latch operation means. A plurality of engaged portions are provided to engage with the engaging portions of each operation means so that a type of operation means can be selected.

Further, the latch operation means includes a lever which is removably engaged with the latch, and a release hub for releasing the lever from the latch. Preferably, an opening is formed so that the engaging portion can engage with the release hub.

The operating means comprises a handle operated by pushing or pulling or a handle operated by rotation. The release hub is provided rotatably about a boss portion, and the boss portion includes: A fitting hole into which the engaging portion of the handle is fitted so as to rotate integrally is formed, and an engaged portion with which the engaging portion of the handle engages is projected from the boss portion. It is in.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described. 1 to 4 show an embodiment of the present invention, wherein 1 is a lock, and the lock 1 is attached to, for example, a swinging door 3 of a bathroom, and a latch built in a lock case 2. A locking member such as 8 is operated by push-pull handles 3 and 4 attached to the door 3.

The lock 1 of this embodiment is configured to be opened by pulling the handle 3 from the bathroom side or pushing the handle 4 from the undressing room side as shown in FIG.

A front wall 2a having a latch opening 10 is provided on the front surface of the lock case 2, and a decorative plate 4 is provided on the front surface of the front wall 2a. A latch 8 having a substantially parallelogram shape in a plan view is projected from the latch opening 10,
The latch 8 is housed in the housing recess 14 so as to be able to move back and forth.
Locked portions 15 protrude from the upper and lower surfaces of the latch 8. A notch 12 is formed at the rear of the latch 8, and a latch spring guide 19 is inserted into the notch 12, and the tip of the latch spring guide 19 is connected to a vertical pivot 18.
The latch 8 is pivotally attached to the latch 8 in a horizontal direction about the pivot shaft 18 (reversible).

The latch spring guide 19 has an arm portion 19a to which a latch spring 20 is fitted.
At the same time, it urges the latch 8 in a direction to protrude.

A lever 22 is provided below the latch 8 for releasably preventing the latch 8 from being inverted. The lever 22 is swingably attached to both side walls 2 b of the lock case 2 by a horizontal lever shaft 23. The lever 22 is provided with a locking portion 22a that engages with the locked portion 15 below the latch 8 from below. The lever 22 is urged by a lever spring 25 as an elastic body provided between the lever 22 and the front wall 2a in a direction in which the locking portion 22a is engaged with the locked portion 15 of the latch 8. .

Reference numeral 27 denotes a release hub for swinging the lever 22. A boss 28 is provided at the center of the hub, and small-diameter fitting portions 28a protrude from both sides of the boss 28.
Both fitting portions 28a are rotatably fitted into fitting holes (openings) 31c formed in both side walls 2b of the lock case 2. A substantially L-shaped swing arm 30 is formed downward and forward from the boss 28, and the tip of the swing arm 30 is engaged with the engaged portion 32 of the lever 22 from below. You. A square hole (engaged portion) 33 as a fitting hole is formed through the center of the boss portion 28, and the square hole 33 is exposed from both side walls 2b.

The release hub 27 presses the tip of the swing arm 30 against the lower wall 2c of the lock case 2 so that the locking portion 22a of the lever 22 is locked by the locked portion 15 of the latch 8. To maintain the engaged position. At this time, the latch 8 is inclined so that the one side surface 8a on the undressing room side slides with respect to the frame 5 as a receiving member when the door 3 is closed as shown in FIG. The other side surface 8b on the bathroom side is a right-angled surface to restrict the closed door 3 from opening.

The boss portion 28 of the release hub is provided with a lever-rotating engaged portion 34 projecting in a direction (upward) opposite to the swing arm 30.

Escape openings 31a and 31b are provided on both side walls 2b of the lock case 2 at positions corresponding to the swing arm 30 and the lever rotating engaged portion 34 of the release hub 27.
Are formed respectively. Then, the moving pieces 26a, 26b as the engaging portions from the handles 3, 4 via the respective release openings (openings) 31a, 31b are respectively connected to the lock case 2.
It is projected inside. Each moving piece 26a, 26b
By operating the handles 3 and 4, respectively, the lever 2
2 is rotated in the horizontal direction in a state in which it is engaged with the swing arm 30 of the release hub 27 and the engaged portion 34 for lever rotation in order to rotate the arrow 2 in the arrow direction (clockwise direction) shown in FIG. ing.

In this case, the lever 22 and the release hub 27 constitute a latch actuating means, and the swing arm 30 and the lever-rotating engaged portion 34
The four moving pieces 26a and 26b are engaged portions to be engaged.
In addition, each moving piece 26a, 26b has its own handle 3,
A pair of upper and lower members may be provided on the handle 4, or an upper moving piece 26 a may be provided on the pull-side handle 3, and a lower moving piece 26 b may be provided on the push-side handle 4.

A dead hub 35 is provided above the release hub 27 for preventing the latch 8 from moving in the retreating direction and rotating the release hub 27. A slider 37 is pivotally supported on the arm portion 36 of the dead hub 35, and when the dead hub 36 is rotated, the distal end of the slider 37 is engaged with the lever rotation engaged portion 34 of the release hub 27. It is detachable on the back.

When the dead hub 36 is rotated,
The latch lock plate 39 moves upward, and the raised locking piece 39a of the latch lock plate 39 comes into contact with the arm portion 19a of the latch spring guide body 19.
To prevent the retreat.

Next, the operation of the lock 1 of the present embodiment will be described. First, when closing the door 3 in the open state,
Hold the handle 4 on the dressing room side and pull the door 3, or
Press the handle 3 on the bathroom side. At this time, since the handles 3 and 4 cannot swing, the release hub 27 does not rotate. Therefore, the release hub 27 does not swing the lever 22, the lever 22 remains engaged with the latch 8, and the latch 8 cannot be turned over.

The latch 8 has one inclined surface 8a.
Slides on the frame body 5 so that it retreats into the lock case 2 against the spring 20 and the whole is immersed, so that the door 3 can be closed. When the door 3 is closed, the latch 8 protrudes into the recess of the frame 5 by the latch spring 20, and the other right side surface 8 b of the latch 8 engages with the recess of the door 3. Does not open even if pushed to the side.

Next, when opening the door 3, the handle 4 on the undressing room side is pushed or the handle 3 on the bathroom side is pulled. At this time, the operated handles 3 and 4 swing, and the moving pieces 26a and 26
Swing b. The moving pieces 26a and 26b rotate the release hub 27 clockwise, and the release hub 2
7 swings the lever 22 counterclockwise (see FIG. 2). As a result, since the lever 22 swings to the release position where the locking portion 22a is disengaged from the engaged portion 15 of the latch 8, the latch 8 can be freely inverted.

The latch 8 in contact with the frame 5 is shown in FIG.
As shown in FIG.
Becomes an inclined surface, so that the lock case 2
The door 3 can be opened.
Thereafter, the latch spring 20 causes the latch 8 to protrude. At this time, when the latch 8 slides on the lock case 2 side, the latch 8 is reversed to the original position again. Lever 22 biased by lever spring 25
Engage. As means for restoring the latch 8,
An elastic body may be interposed between the latch 8 and the arm 19a.

In the above-described embodiment, the configuration in which the push-pull handles 3 and 4 are attached as the lock 1 is exemplified. However, instead of the handles 3 and 4, the rotary lever handle 40,
It is also possible to attach 41.

That is, as shown in FIGS. 5 and 6, the lock 1 is attached to the door 3 and the square shaft 42 as an engaging portion connecting the pair of operation levers 40 and 41 is formed in the square hole of the release hub 27. 33 so as to be integrally rotated. Therefore,
When each lever handle 40, 41 is operated and turned,
As described above, the release hub 27 can be rotated clockwise, and the opening and closing operation of the door 3 can be performed as in the push-pull type.

In the above-described embodiment, the case where the present invention is applied to a bathroom door is exemplified. However, a gate may be used, and the type of the door 3 is not particularly limited.

The opening direction of the door 3 may be opposite to the above direction. In this case, the latch 8 can be used upside down.

Further, in this embodiment, the operating means of the lock is exemplified by a push-pull type handle and a lever handle as the most typical one. Of course, any other known operating means can be employed.

Further, in each of the above embodiments, the configuration in which the latch 8 is inverted and moves back and forth is illustrated, but the latch 8 may be configured to move out without inversion. .

[0033]

According to the lock of the present invention, the latch operating means is provided with a plurality of engaged portions which engage with the engaging portions of the respective operating means so that a plurality of types of operating means can be selected. It is possible to attach any type of operation means.

Therefore, the versatility is improved as compared with the conventional type in which only the operation means is attached, and as a result, there is no need to manufacture and manage locks corresponding to each operation means. Points are reduced and handling is very convenient.

Further, the release hub is provided rotatably about a boss portion, and the boss portion has a fitting hole into which the engaging portion of the lever handle is fitted so as to rotate integrally. If the boss portion is formed and the engaged portion to which the engaging portion of the handle engages is protruded from the boss portion, the structure becomes simple and there is an advantage that the manufacturing becomes easy.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional front view showing a state in which reversal of a latch is restricted according to a specific embodiment of the present invention.

FIG. 2 is a partial cross-sectional front view showing a state where the latch can be freely inverted.

FIG. 3 is a cross-sectional plan view showing an outline of the whole.

FIG. 4A is a cross-sectional plan view illustrating a main part of the latch before inversion, and FIG. 4B is a cross-sectional plan view illustrating a main part of the latch after inversion.

FIG. 5 is a cross-sectional plan view schematically showing another embodiment of the present invention.

FIG. 6 is a schematic front view of the same.

[Explanation of symbols]

 2 Lock case 3, 4 Handle (operation means) 5 Frame (receiving member) 8 Latch 22 Lever 27 Release hub 26a Moving piece (engaging portion) 26b Moving piece (engaging portion) 31a Release opening (opening) 31b Release opening (Opening) 31c Fitting hole (opening) 40, 41 Lever handle (operating means) 28 Boss 30 Swing arm (engaged part) 33 Square hole (fitting hole) 34 Lever rotating engaged part (receiving part) Engagement part) 42 Square axis (engagement part)

Claims (5)

[Claims] A latch is movably provided on a lock case so as to be releasably engageable with the receiving member side, and the lock case has a built-in latch operating means for engaging and disengaging with the latch. In a lock in which the latch operation means can be operated by operation means provided outside the lock case, the latch operation means is engaged with each of the operation means so that a plurality of types of operation means can be selected. A lock having a plurality of engaged portions to be engaged with the portion. 2. A latch is provided on the lock case so as to be reversible and a tip end thereof is provided so as to be releasably engageable with the receiving member side. In a lock having a built-in latch operating means which is detachably engaged with the latch, and which is configured to be operable by operating means provided outside the lock case,
The lock according to claim 1, wherein the latch operation means includes a plurality of engaged portions that engage with the engagement portions of each operation means so that a plurality of types of operation means can be selected. 3. The latch operation means includes a lever which is removably engaged with the latch, and a release hub for releasing the lever from the latch. The lock according to claim 1 or 2, wherein an opening is formed so that an engagement portion can engage with the release hub. 4. The lock according to claim 3, wherein said operating means is a handle operated by pushing and pulling or a handle operated by turning. 5. The release hub is provided rotatably about a boss portion, and the boss portion is formed with a fitting hole into which the engaging portion of the handle is fitted so as to rotate integrally. And
The lock according to claim 4, wherein an engaged portion with which the engaging portion of the handle is engaged protrudes from the boss portion.