JP2605008Y2 - Lock case - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement technique for a lock case provided in, for example, a bathroom or indoor partition door, or a door for an entrance.

[0002]

2. Description of the Related Art Locks provided on doors and the like include locks having a locking function and locks having no locking function, so-called empty locks.

In each of these types, apart from the presence or absence of a locking mechanism, a latch bolt having a latch at its tip which is detachable with respect to a receiving seat on the door frame side, and the latch is engaged with the receiving seat. A latch spring for urging and projecting in the direction;
A latch operating mechanism for forcibly retracting the latch into the case is housed in the lock case.

Here, the configuration of the above lock case will be described. The conventional lock case is formed by bending a plate-like member cut into a predetermined shape to form a front plate portion having a slide exit / reception opening of a latch. With this front plate portion, a box-shaped case main body is integrally bent and formed, and a screw column is erected on a bottom plate portion of the case main body, while a latch bolt slide holding mechanism, a latch spring receiving device, and the like are provided. A latch operation mechanism and the like are incorporated in the case main body, and a case lid is screwed to the screw post so that these are not disassembled.

It is needless to say that a lock-related mechanism for a lock having a locking function is also incorporated in the case body.

[0006]

However, the above configuration requires many parts such as a screw post and a case cover in addition to the case main body, and a small separate screw post is provided at a predetermined position of the case main body. Since a complicated process of erecting and a troublesome assembling operation of screwing the case lid to the screw post are required, there is a problem in that the manufacturing cost of the lock case is high.

[0007] Further, since the lock is originally susceptible to a large impact with opening and closing of the door, the locking screw of the case lid is loosened during use, which may cause malfunction and generate abnormal noise. There were also problems.

The present invention has been made in view of the above-mentioned circumstances, and provides a low-cost lock case in which the above-mentioned inconvenience has been completely eliminated by an extremely simple and rational improvement technique. It is an object.

[0009]

The lock case according to the present invention, which has achieved the above object, has a pair of case plates on the left and right sides of a front plate on which a slide slide-out opening of a latch is formed. Folded and formed integrally so that they can face each other
Formed on the latch hub of the latch operation mechanism
A case for bringing the stopper piece and the rotation regulating piece into contact
A cut with a ridge that protrudes inside the plate and is integrated with the periphery
Raised holes are provided in each of the pair of case plate portions.
Tei Rukoto is characterized in.

[0010]

According to the above characteristic configuration, not only the bottom plate of the case body but also the member corresponding to the case lid in the conventional lock case are integrally formed on the front plate, so that the number of parts of the lock case is only one. In addition, the screw pillar and the screwing of the case lid to the screw post are omitted, so that the malfunction of the lock and the generation of abnormal noise due to the screwing of the case lid can be prevented. Significant reductions in manufacturing costs including costs are achieved.

Latch operation provided on a pair of case plate portions
Stopper piece formed on latch hub of mechanism and rotation control
A ridge that rises inside the case plate to make contact with the piece
The configuration of the cut-and-raised hole with the
Latching mechanism of this latch operating mechanism
Contact the stopper piece formed on the
Screw column, which is provided for
Screw the case lid to this screw post
Eliminates cumbersome assembling work.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings for a so-called empty lock having no locking function.

As shown in FIG. 1, this empty lock is buried in a concave portion 2 formed at the open end of a door 1 such as a bathroom, for example. Is provided with a receiving seat 5 for locking the latch 4a at the tip of the latch bolt 4.

The specific structure of the empty lock will be described. As shown in FIGS. 2 and 3, the empty lock is provided in a lock case 7 made of, for example, stainless steel, in which a slide outlet 6 of a latch 4a is formed. A slide holding mechanism 8 for the bolt 4 is provided, a latch spring 9 for urging and projecting the latch 4a from the slide outlet 6 is provided between the slide holding mechanism 8 and the receiving member 10, and the latch 4a is provided. Latch operating mechanism 11 forcibly retracting into lock case 7
Is housed in the lock case 7 while the latch operating mechanism 11
2 for rotating the latch hub 12 of FIG.
One lever handle 13, one of which is a latch hub 12.
And screwed to each other.

The lock case 7 is integrally formed, for example, as follows. That is, as shown in FIG. 4, a material 17 having a shape in which case plate portions 16, 16 are connected to each other on the left and right sides of the front plate portion 15 in a line-symmetrical state is stamped and formed by, for example, pressing.

As shown in FIG. 5, the front plate 15 has a slide opening 6 for the latch 4a and a hole 19 for screwing an empty lock to the door 1 through the decorative seat plate 18, as shown in FIG. ,
19, a locking hole 22 for engaging the projection 21 of the decorative plate portion 20 connected to the receiving device 10, and holes 23 for bending balance are formed. In order to prevent the protrusion 21 from protruding from the front surface, a recess 24 is provided around the locking hole 22.

On the other hand, a hole 25 for rotatably supporting the latch hub 12 of the latch operating mechanism 11 and a slide holding mechanism 8 for the latch bolt 4 are slidably engaged with the case plate portions 16 and 16 respectively. A rectangular hole 26 for holding, a concave portion 28 for locking a projection 27 of the receiving device 10,
A locking hole 30 for engaging one of the protrusions 29 on both sides, and a screw post or screw cut-off for connecting the pair of handle seat plates 31.
Engagement notch groove 35 of shaft body 34 connecting hole 32 for raising and one end side of latch hub spring 33 of latch operation mechanism 11.
And a locking hole 37 for attaching two stoppers 36, which will be described in detail later, in a so-called fitted state.

The other protrusion 29 of the receiving member 10 is engaged with one of the locking holes 37, and the receiving member 10 has a spring receiving member. A spring position restricting portion 38 is swelled on the surface portion, and a positioning concave portion 39 of the receiving device 10 is provided between the square hole 26 and the concave portion 28. The locking notch groove 35 for the shaft body 34 is formed in an L-shape that opens at the lower edge of the case plate portion 16 and is bent toward the front plate portion 15.

The material 17 having the various holes, the recesses, etc., formed in the manner described above is placed on the case plate portions 16, 1 on both the left and right sides thereof.
6 is bent in the same direction with respect to the front plate portion 15, and as shown in FIG. 5, a sheet metal lock case 7 having a pair of case plate portions 16, 16 facing each other on both left and right sides of the front plate portion 15. Is formed.

The holes 23, 23 for bending balance are formed in the front plate portion 15 for the following two reasons. One of the reasons is that the opening position of the slide outlet 6 is formed so as to be biased above the front plate portion 15.

That is, if the slide outlet 6 is opened in a biased manner, the dimension a from the lower side corner of the slide outlet 6 to the lower end of the case plate 16 as shown in FIG.
From the upper side corner of the slide exit 6 to the case plate 16
This is because the dimension b is larger than the dimension b up to the upper end, and the bending by the press becomes unbalanced. In consideration of this point, the dimension c from the lower corner of the hole 23 to the lower end of the case plate 16 is defined as So that it is almost equal to the above dimension b,
The holes 23 are formed in the front plate 15.

Another reason is that the case plate portion 16,
This is due to the fact that a cut-and-raised hole 32 and a concave portion 39 protruding toward the inner surface of the case are formed in each of the 16.
That is, since the cut-and-raised hole 32 and the concave portion 39 are formed in the case plate portions 16, 16, the press die 4 schematically shown in FIG.
At 0, it is necessary to form a recess 41 for these.

However, when the recess 41 is formed in this manner, that portion loses the function of bending.
Thus, there is no problem with respect to the retaining recess 41 for one of the recesses 39 because the recess faces the slide outlet 6, but the retaining recess 41 for the other cut-and-raised hole 32 loses the function of bending. Then, the front plate 15 cannot be bent accurately,
In consideration of this point, the hole 23 is formed so as to face the cut-and-raised hole 32.

Next, the slide holding mechanism 8 of the latch bolt 4 will be described.
As shown in FIGS. 3 and 5 and 6, the case plate portions 16 and 16 of the lock case 7 which are opposed to each other are slightly opened and assembled into the square holes 26 and 26 based on the elastic restoring force. The latch bolt 4 is formed by riveting a bolt holding member 42 holding a latch 4a made of, for example, a synthetic resin to the tip side of the band member 43. Cuts e and e are formed on both left and right sides of the end so as to leave a narrow portion d.

A slit f having a width slightly larger than the thickness of the band-like member 43 is formed in the slide member 44 in which the protrusions 44a are slidably held using the square holes 26 as guides. The narrow part d having a diameter
A hole h that is slightly larger than the width dimension is formed in connection with the slit f, and a narrow portion d is inserted through the slit f into the hole h.

On the other hand, a plug portion 45a for filling the hole h,
A flange-shaped seat 45b having a diameter larger than that of the plug portion 45a.
And a position restricting seat 45c having a diameter slightly smaller than the seat 45b.
5 is provided with a slit hole i through which the band-shaped member 43 is inserted.
3 is inserted through the hole h from the rear end side.

According to such a configuration, the slide holding mechanism 8 connected to the latch bolt 4 is connected to the pair of case plate portions 1.
6 and 16 are slidably held in the square holes 26, 26,
In addition, by providing the latch spring 9 between the seat 45b of the plug body 45 and the receiving member 10, the latch 4a can be urged and projected from the slide outlet 6 of the front plate portion 15.

The escape or catch of the narrow portion d with respect to the slit f is reliably prevented by the plug portion 45a of the plug body 45, and the band member 43 and the latch 4
Since the direction of “a” can be reversed by 180 degrees, by reversing the direction of the latch 4a, an empty lock can be provided for a door whose opening / closing hand is reversed.

Next, the latch operation mechanism 11 for forcibly retracting the latch 4a into the lock case 7 will be described.
As shown in FIGS. 3 and 5, the latch operation mechanism 11 includes a latch hub 12 obtained by bending a plate-like member into a U-shape, and a latch hub spring 33 having a biasing force set to be stronger than that of the latch spring 9. Each of the plate portions 46 and 46 of the latch hub 12 facing each other has a bulging shaft portion 47 rotatably supported by the hole 25 of the case plate portion 16 and a latch spring 9 with respect to the slide member 44. A locking piece 48 for locking in the opposite direction and a stopper 4
9 to form a stopper piece 50 to be locked to this and a rotation restricting piece 51 to be locked to the stopper 49 as the latch hub 12 rotates.

The square hole 14 through which one of the lever handles 13 is inserted is formed at the center of the swelling shaft 47. The latch notch j of the latch hub spring 33 is formed at the edge of the connecting plate 52 of the latch hub 12.

On the other hand, the latch hub spring 33 is provided between the notch j of the latch hub 12 and the case plate portions 16, 16.
And the shaft body 34 locked in the locking notch grooves 35, 35. The latch hub 12 is rotated by the lever handle 13 against the latch hub spring 33, and the latch 4a is forcibly forced. The door 1 can be opened by being retired in the lock case 7.

A shaft 34 for connecting one end of the latch hub spring 33 is inserted into a loop m of the spring 33, and has a stepped shaft at one end thereof for preventing the upward movement of the loop m of the latch hub spring 33. The stepped shaft portion n and the end of the shaft body have annular grooves r, which are engaged with L-shaped notch grooves 35, 35 formed in the case plate portions 16, 16, respectively. r is formed.

Next, a stopper 36 is provided. The stopper 36 is formed in a plate-like shape with the tongue pieces t, t engaged in the respective locking holes 37 of the case plate portions 16, 16 in a state where the tips of the tongues t abut each other. The plate-like member is formed on both sides of the member, and this tongue piece t, t
A case plate portion which is formed by bending the tongue pieces t, t inwardly from each other inwardly, and bending the tongue pieces t, t in an elastically deformable manner. 16,
16, the tip of the tongue piece t is
At the same time as locking at the open end of 7
The case plates 16, 16 are also prevented from spreading.

The edge of the case plate portion 16 corresponding to the stopper 36 is provided with a projection w which engages with a U-shaped opening for forming a tongue piece t. It is configured to prevent the portions 16, 16 from bending and deforming so as to approach each other, and to prevent the stopper 36 from laterally shifting.

An example of the procedure for assembling the empty lock having the above-described configuration will be described. First, the case plate portions 16 and 16 of the lock case 7 which are opposed to each other are slightly opened, and as shown in FIG.
The latch hub 12 is rotatably supported in the holes 25, 25 of the case plate portions 16, 16 via the swelling shaft portions 47, 47, and the latch notch j of the latch hub 12 is provided.
The latch hub spring 33 is locked and connected, and the shaft body 34 is inserted into the loop m of the latch hub spring 33 so that the shaft body 34 is locked and connected to the notch grooves 35 and 35.

At this time, as shown in FIG. 8, the annular grooves r, r formed on both sides of the shaft body 34 are engaged with lower end edges of the case plates 16, 16, and The lower end edge is used as a guide rail, and the shaft body 34 is formed along the L-shaped notch groove 3 against the urging force of the latch hub spring 33 along the guide rail.
5, and by applying a pushing force to the shaft body 34, the shaft body 34 is brought into contact with the latch hub spring 33.
With the urging force described above, the latching mechanism 11 is locked and connected to the inner part of the notch groove 35, so that no tool is required for assembling the latch operating mechanism 11.

By the assembly of the latch operating mechanism 11, the case plates 16, 16 facing each other are prevented from being bent and deformed so as to approach each other by the latch hub 12 and the annular grooves r, r of the shaft 34. And the case plate 1
The expansion of 6, 16 is also prevented by the annular grooves r, r of the shaft 34.

Next, the latch 4a is moved to the slide outlet 6
The slide member 44 of the slide holding mechanism 8 is formed so as to lock the slide member 44 with the locking piece 48 of the latch hub 12 while projecting the slide member 44 from the case to the outside of the case.
And the latch spring 9 is applied to the seat 45b of the plug body 45 so that the latch spring 9 is bent, and the receiving member 10 and the decorative plate portion 20 connected thereto are bent. , And the projections 27, 29, and 21 are engaged with the locking holes 2 respectively.
The latch 4 a is urged and projected from the slide outlet 6 by the urging force of the latch spring 9.

Here, the case plate portions 16 and 16 facing each other
Are prevented from deforming so as to approach each other by the receiving member 10 and the decorative plate portion 20, and the projections 2 with respect to the locking holes 22, 30, 37 and the recessed portion 28 are formed.
The engagement of 7, 29, and 21 also prevents lateral displacement between the receiving device 10 and the decorative plate portion 20.

Finally, the two stoppers 36
The tongue pieces t, t are elastically deformed and set on the outside of the case plates 16, 16, which face each other, in a so-called fit-kill state. As a result, as shown in FIGS. The latch lock mechanism 11, the slide holding mechanism 8 for the latch bolt 4, the receiving device 10 having the decorative plate portion 20 connected thereto, and the two lock fasteners 36 require no tools at all, and are free locks. Can be assembled.

In the above embodiment, the concrete structure has been described for an empty lock. However, this is merely an example, and when a lock having a locking function is to be implemented, a dead bolt or a thumb Alternatively, it goes without saying that a lock-related mechanism represented by a cylinder or the like is also incorporated in the lock case 7.

[0042]

As described above, according to the present invention, the members corresponding to the bottom plate of the case body and the case lid in the conventional lock case are bent to the left and right sides of the front plate to integrate the lock case. By bending the product,
Omitting the process of creating a separate fine screw column and erecting it , and freeing from the cumbersome assembling work of screwing the case lid to the screw column are achieved, which means that: defective operation due to screwing the case lid
Those joint want to prevent, practically extremely excellent in further cost reduction assembly of the lock casing also achieved, in addition, a number of components one point of the lock case, which reduces the manufacturing cost of the parts Therefore, the manufacturing cost of the lock case can be greatly reduced, and as a whole, the lock case can be provided at low cost by extremely simple and reasonable improvement.

At the same time , the pair of case plates are
Stopper piece formed on latch hub of mechanism and rotation control
A ridge that rises inside the case plate to abut the piece
A cut-and-raised hole with an integral part on the periphery
The configuration eliminates the need for a separate threaded post, and
Screw the case cover on the difficult process of erecting and this screw post.
No need for cumbersome assembly work to stop, so separate
Omission of the process of processing a small screw column and erecting it
And annoying assembling work to screw the case lid to the screw post
Industry and reduced lock case assembly costs.
To reduce the cost of manufacturing parts,
The cost can be greatly reduced
More effective.

[Brief description of the drawings]

FIG. 1 is a vertical sectional plan view of an empty lock.

FIG. 2 is an exploded perspective view of an empty tablet.

FIG. 3 is a vertical sectional side view of an empty lock.

FIG. 4 is an explanatory view of a material for molding a lock case.

FIG. 5 is an exploded perspective view of the lock case.

FIG. 6 is an exploded perspective view of a latch bolt and a slide holding mechanism.

FIG. 7 is an explanatory view for assembling a latch hub spring.

FIG. 8 is a perspective view showing a state where the assembly of the latch hub spring is completed.

FIG. 9 is a perspective view of an empty lock.

[Explanation of symbols]

4a: Latch, 6: Slide exit / exit, 15: Front plate, 16: Case plate.

Claims (1)

(57) [Scope of request for utility model registration] 1. A pair of case plate portions are formed by being bent integrally on both left and right sides of a front plate portion formed with a slide exit opening of a latch so as to face each other.
The stopper piece formed on the latch hub of the
Raised inside the case plate to abut the motion regulating piece
This raised and cut hole with an integral ridge
Tablets Case characterized that you have provided to the pair of the case plate.