JPH07217276A - Structure for mounting cover on door lock device - Google Patents

Abstract

PURPOSE:To simplify a cover mounting structure by providing an engagement pin at the end of a guide portion provided in a case, providing an open-position holding recess, into which the engagement pin can be locked, on the surface of a sliding portion provided in a cover, and providing an abutment face on the inside wall surface of the open position holding recess for stopping a slope and the cover from moving in an opening direction. CONSTITUTION:When a cover 9 is closed, the shank 13 of an engagement pin 12 is locked at its end into a closed-position holding recess 18 so that the cover 9 is held in the fully-closed position. When the cover 9 is moved in an opening direction, the shank 13 of the engagement pin 12 is locked in at its end along the slope 18a of the closed position holding recess 18 and the sliding portion 17 of the cover 9 slides on the guide portion 10 of a case 8 to open the cover 9. When the cover 9 comes to a full-open position, the shank 13 of the engagement pin 12 is locked at its end into an open-position holding recess 19 so that the cover 9 is held in the full open position, and an abutment portion 19b prevents the cover 9 from moving further in the opening direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover mounting structure for opening and closing a case of a door lock device having an input operation part such as a switch and locking the cover in an open position and a closed position.

[0002]

2. Description of the Related Art FIG. 11 is a perspective view of a door lock device. A case 1 having an input operation section 2 such as a switch on its surface is attached to a door D, and a cover 3 for opening and closing the input operation section 2 is attached to the case 1. Is slidably mounted. A dead bolt 4 for locking the door D and a latch bolt 5 for holding the door D in a closed state are provided on the end surface of the door D, and a door handle 6 is provided on the surface of the door D. Reference numeral 7 is a cylinder lock for unlocking mechanically without using the input operation unit 2.

Since the cover 3 of the door lock device is normally closed and the input operation section 2 that complicates the surface of the door D is covered, the appearance of the door lock device is kept beautiful. When unlocking the door D, the cover 3 is slid upward to be fully opened, and is lightly locked in the fully opened state by an open position holding mechanism (not shown) inside the door locking device. If you enter your PIN from the exposed input operation unit 2,
The dead bolt 4 sinks, unlocks, and the door can be opened. After the unlocking operation, the cover 3 is closed.

[0004]

The cover 3 of such a door lock device is required to be lightweight in order to facilitate the opening / closing operation, and a plastic material is used for reasons of appearance and manufacturing. There are not a few Even a plastic material cover has sufficient strength to withstand use,
It may be damaged if subjected to rough treatment, and when replacing the damaged cover 3 with a new one, remove the case 1 from the door D, disassemble, attach the new cover 3, and then reassemble and reassemble. There was a hassle to install.

In order to solve this problem, there has been proposed a cover mounting structure in which the cover 3 can be mounted without removing or disassembling the locking device (actually 5-7.
8843). This cover mounting structure of the door lock device has an advantage that the structure is simple and the cover can be replaced without disassembling the door lock device. However, since the cover opening / closing mechanism and the cover opening / closing position locking mechanism are separately provided, there is a drawback that the structure of the case and the cover is complicated, and the opening / closing position locking mechanism is provided at approximately the center of the case and the cover. Therefore, there is a drawback that the door lock itself becomes large because the cover is thick and the cover becomes thick.

[0006] Further, since the attachment of the cover requires two operations, that is, an operation of fitting the cover into the guide portion of the case and an operation of immersing the locking pin, a method of more easily attaching the cover is desired. Be done. An object of the present invention is to solve such a problem, and to provide a cover mounting structure for a door lock device that simplifies the cover mounting structure and facilitates the mounting operation.

[0007]

In order to achieve the above object, the present invention provides a case of a door lock device having an input operation portion such as a switch on the surface thereof, and a case slidably provided on the case. In the mounting structure of the cover that opens and closes,
A guide portion is provided on the case along the sliding direction of the cover, and an engaging pin that is biased in a direction projecting from the bottom surface of the guide portion is provided at an end of the guide portion, and the guide is provided on the cover. A sliding portion capable of sliding the portion is provided, and an opening position holding concave portion into which the engaging pin can be engaged at the opening position of the cover is provided on the surface of the sliding portion. On the inner wall surface, an inclined surface inclined toward the closing direction of the cover,
An abutting surface that restricts movement of the cover in the turning direction is provided.

The sliding portion of the cover is provided with a closed position holding recess into which the engaging pin can be engaged at the closed position of the cover, and the cover is provided on the inner wall surface of the closed position holding recess. Can be provided with an inclined surface that is inclined toward the opening direction. Further, by providing an assembling inclined surface with which the engaging pin abuts on the end side of the sliding portion, the assembling of the cover becomes easy.

[0009]

In the cover mounting structure of the door lock device constructed as described above, the guide portion of the case is provided with the engaging pin, and the sliding portion of the cover is provided with the open position holding concave portion and the closed position holding concave portion. Since it is provided, the entire structure is simple, and the appearance of the cover and the case is beautified by simplification. When the cover is closed, the engagement pin is engaged in the closed position holding recess and is held in the closed state. When the cover is moved in the opening direction, the engaging pin retracts along the inclined surface of the closed position holding recess, the cover is opened as it is, and the cover opens when the engaging pin engages in the open position holding recess. Held in a state.

The cover can be removed from the case by retracting the engagement pin while the cover is held in the open state. When the sliding portion of the new cover is pressed against the engaging pin of the case, the engaging pin that hits the assembly inclined surface is recessed, so that the cover can be easily assembled as it is.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. A door lock device is a case 8 attached to a door.
And a cover 9 that opens and closes the upper half of the case 8, and the upper half of the case 8 closed by the cover 9 has a surface, both side surfaces, and an upper surface of the cover 9 for receiving the cover 9. It is lower by the thickness (see Fig. 6). The input operation section 2 is provided on the surface of the upper half of the case 8 (see FIG. 11), the groove-shaped guide portions 10 are provided on both side surfaces, and the engagement pin insertion holes are provided at the upper ends of both guide portions 10. 11 penetrates (see FIG. 6).

A shaft portion 13 provided at one end of the engagement pin 12 is inserted into the engagement pin insertion hole 11, and a bottomed hole 14 provided at the other end of the engagement pin 12 is provided with a support rod 15. Both ends are inserted and the spring 16 wound around the support rod 15
Is clamped by both engagement pins 12 (see FIG. 2). Therefore, the tip of the engagement pin 12 is biased in a direction projecting from the bottom surface of the groove-shaped guide portion 10.

As shown in FIG. 8, the cover 9 has a lower end portion and a back side portion opened, and both inner side surfaces of the cover are provided with projecting sliding portions 17 slidable along the guide portions 10. To be In this embodiment, the guide portion 10 has a groove shape and the sliding portion 17 that slides along the guide portion 10 has a protruding shape. However, the guide portion 10 may have a protruding shape and the sliding portion 17 may have a groove shape. Good.

A closed position holding recess 18 and an open position holding recess 19 are formed in the upper and lower portions of the sliding portion 17. On the inner wall surface of the closed position holding recess 18, the open position holding recess 1 is formed.
9, an inclined surface 18a connecting to the sliding portion 17 is formed, and the inner wall surface of the open position holding recess 19 is gradually shallowed toward the closed position holding recess 18 to form a slidable surface. An inclined surface 19a to be connected and an abutting portion 19b are formed on the opposite side surface of the inclined surface 19a (see FIG. 7). An assembling inclined surface 20 is formed at the lower ends of the two sliding parts 17 such that the distance between the two sliding parts 17 increases downward.

The operation of the cover mounting structure of the door lock device constructed as above will be described. When the cover 9 is closed, the tip of the shaft portion 13 of the engagement pin 12 is engaged with the closed position holding recess 18, and the cover 9 is held in the fully closed state (see FIG. 1). The surface of the cover 9 is connected to the surface of the case 8 without any step (see FIG. 4).

When the cover 9 is moved in the opening direction, the tip of the shaft portion 13 of the engagement pin 12 is recessed along the inclined surface 18a of the closed position holding recess 18, and the sliding portion 17 of the cover 9 is moved to the case 8. The guide 9 is slid to open the cover 9. When the cover 9 reaches the fully open position, the tip of the shaft portion 13 of the engaging pin 12 is engaged with the open position holding recess 19, the cover 9 is held in the fully open state, and the cover 9 is further opened by the contact portion 19b. It is prevented from moving in the direction.

When the cover 9 is fully closed, the input operation portion 2 is exposed on the surface (see FIG. 11), but the guide portion 10 is on the side surface of the case 8 so that it is difficult to see it from the front, and the engagement is performed. The pin 12 is invisible because it is always covered by the cover 9. In this embodiment, the closed position holding recess 18 is provided to lock the cover 9 in the closed position. However, the closed position holding recess 18 is not provided and the lower end of the cover 9 is fixed to the case 8 at the closed position. The cover 9 may be held in the closed position by abutting.

The cover 9 can be removed by moving the engaging pin 12 in the retracted direction with the fingertip extended to the back side of the cover 9. When the lower end of the sliding portion 17 of the new cover 9 is pressed against the tip of the shaft portion 13 of the engaging pin 12, the assembly inclined surface 20
Since the engaging pin 12 that hits the inner part is retracted, the cover 9 can be easily assembled as it is.

Engaging pin 12, support rod 15, spring 1
The open position and closed position holding mechanism of the cover constituted by 6 can also be used for the cover rotation type door lock device as shown in FIGS. 9 and 10. In this cover rotation type door lock device, an engaging pin 12 is provided on the upper end portion of the case 8 instead of the guide portion 10 and the sliding portion 17, and the upper end portion of the cover 9 is pivotally attached by a shaft portion 13.

On both sides of the case 8, there are convex portions 2 for holding the open position.
1 is provided, and an open position holding concave portion 22 that engages with the open position holding convex portion 21 when the cover 9 is opened is provided on the back surface of the cover 9 (see FIG. 10). In such a rotation-type cover mounting structure, the cover 9 is biased in the closing direction by its own weight, so that the closed position holding recess need not be provided.

[0021]

Since the present invention is constructed as described above, it has the following effects. (1) Since the sliding guide of the cover and the mechanism for holding the open position and the closed position of the cover are integrated, the structure of the case and the cover is simplified. (2) Since the cover is held at the open position and the closed position by a simple operation of moving the cover in the opening / closing direction, the opening / closing operation of the cover is easy. (3) A new cover can be attached to the case by a simple operation of pressing it against the case. (4) Since there is no gap between the case and cover, the door lock device does not become thick.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a door lock device with a cover fully closed.

FIG. 2 is a cross-sectional view of the door lock device.

FIG. 3 is a vertical cross-sectional view of the door lock device with the cover fully opened.

FIG. 4 is a side view of FIG.

FIG. 5 is a side view of FIG.

FIG. 6 is a side view of the case.

FIG. 7 is a rear view of the cover.

FIG. 8 is a vertical sectional view of a cover.

FIG. 9 is a side view showing a fully closed state of the cover rotation type door lock device.

FIG. 10 is a side view showing a fully open state of the cover pivot type door lock device.

FIG. 11 is a perspective view of a door lock device attached to a door.

[Explanation of symbols]

 2 Input operation part 8 Case 9 Cover 10 Guide part 12 Engagement pin 13 Shaft part 14 Bottom hole 15 Support rod 16 Spring 17 Sliding part 18 Closed position holding recess 19 Open position holding recess 18a, 19a Inclined surface 19b Contact part 20 Assembly slope

Claims (3)

[Claims] 1. A structure for mounting a case of a door lock device having an input operation section such as a switch on the surface and a cover slidably provided on the case for opening and closing the case, wherein the cover is slid on the case. A guide portion is provided along the direction, an engaging pin that is biased in a direction projecting from the bottom surface of the guide portion is provided at an end portion of the guide portion, and the guide portion is slidably slidable on the cover. Part,
An opening position holding concave portion into which the engaging pin can be engaged at the opening position of the cover is provided on the surface of the sliding portion, and an inner wall surface of the opening position holding concave portion faces the closing direction of the cover. The cover mounting structure for a door lock device according to claim 1, wherein an inclined surface that inclines and a contact surface that restricts movement of the cover in the turning direction are provided. 2. The sliding portion of the cover is provided with a closed position holding concave portion into which the engagement pin can be engaged at the closed position of the cover, and an inner wall surface of the closed position holding concave portion, 2. The cover mounting structure for a door lock device according to claim 1, wherein an inclined surface that is inclined toward the opening direction of the cover is provided. 3. The door lock device cover attachment according to claim 1, wherein an assembling inclined surface with which the engaging pin abuts is provided on an end side of the sliding portion. Construction.