JP4580287B2 - Sliding door locking mechanism - Google Patents

Description

  The present invention relates to a sliding door locking mechanism that holds a sliding door slidable on a frame in a closed state.

  As this type of sliding door lock mechanism, there is one provided with an operation unit capable of operating locking and unlocking. Specifically, the casing is provided at the end of the sliding door on the slide closing direction side and one end face is exposed from the end face of the end, and the casing is rotatably provided at the tip. Protrudes from the opening on one end surface of the housing and is engaged with the engaging hole of the frame, a handle portion provided so as to sandwich the sliding door at the position on the other end side of the housing, and the handle portion And a drive piece that rotates the kama lock according to the up-and-down movement. The drive piece is provided with a protrusion that is operated by the user. (See Patent Document 1).

  In other words, the Kama lock can be locked and unlocked by operating the protrusions up and down.

Japanese Utility Model Publication No.57-123458

  However, a large force is required to move the drive piece up and down by operating the protrusion. For this reason, it has the essential fault that it is difficult to operate for those with weak powers such as the elderly.

  The present invention was devised in view of the above circumstances, and an object of the present invention is to provide a sliding door locking mechanism having an operation portion that does not require a large force and can be easily operated. There is.

In order to solve the above-mentioned problems, the sliding door locking mechanism of the present invention is provided at one end of the sliding door in the sliding closing direction of the sliding door which is slidable on the frame and holds the sliding door in a closed state. In
A housing having an opening, a kama lock that is pivotally supported inside the housing and protrudes from the opening of the housing and engages with an engagement hole of the frame, and a rotation of the kama lock. A rotating piece that can be rotated according to the movement, a handle portion that is attached so as to sandwich the sliding door on the other end side of the casing, and a member that rotates the rotating piece and that can be moved up and down in the handle portion. Drive piece, a rocker switch for moving the drive piece up and down, a display piece interlocking with the vertical movement of the rocker switch, and a connecting rod for connecting the rocker switch and the display piece. ,
The drive piece has two drive piece side connection holes that are selectively used according to the distance from the end face of one end of the sliding door to the center line of the mounting hole into which the handle is fitted, and the display piece has the drive piece. Two display one-side connection holes corresponding to the one-side connection holes are provided, and both ends of the connection rod are inserted into the drive one-side connection hole and the display one-side connection hole, and the connection rod penetrates the rotating piece. It is characterized by penetrating the hole .

  On the drive piece facing surface of the rocker switch, there are provided an upper projection that can come into contact with the convex portion of the drive piece from above and a lower projection that can come into contact with the convex portion of the drive piece from below. .

  It is preferable that a cushioning material capable of coming into contact with the opening edge portion of the end surface of the one end portion of the sliding door is provided on one end surface on the rotational direction side in the width direction of the kama lock.

  In the sliding door lock mechanism according to the first aspect of the present invention, the rocker switch is rotated by the pressing operation and is brought into contact with the drive piece, whereby the drive piece is moved up and down. That is, when the rocker switch is pressed, the hook lock rotates from the storage position to the protruding position, and unlocking or locking is performed. Such a rocker switch push-down operation does not require a large force compared to the conventional vertical movement of the projection of the drive piece, so it can be easily operated even by elderly people and other weaker persons. can do. As a result, usability is improved.

  In the case of the sliding door locking mechanism according to claim 2 of the present invention, the rocker switch rotates in response to the pressing operation, and the upper projection abuts against the convex portion of the driving piece so that the driving piece is driven upward or downward. The side protrusion comes into contact with the convex portion of the drive piece, and the drive piece is driven downward. The upper protrusion and the lower protrusion of the rocker switch function not only as a contact portion that is driven to contact the drive piece, but also as a stopper for the drive piece. For this reason, an impact is applied to the sliding door, and the driving piece can be prevented from operating carelessly. In other words, it is possible to prevent the Kama lock from malfunctioning in conjunction with the drive piece due to the impact applied to the sliding door, so that the mechanism can be made more reliable than the conventional example.

  In the case of the sliding door locking mechanism according to claim 3 of the present invention, when the cushioning material provided on the one end face on the rotational direction side in the width direction of the hook lock is positioned at the engagement position, It contacts the opening edge of the end face of one end. For this reason, the lock sound at the time of engagement can be silenced.

  Hereinafter, a sliding door locking mechanism according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic front view of a sliding door provided with a sliding door lock mechanism according to an embodiment of the present invention, and FIG. 2 is a schematic enlarged view of a portion A. FIG. 3 is an enlarged front view of a portion A, FIG. 4 is a side view through which a part of the mechanism is transmitted, and FIG. 5 is a first view of a handle portion of the mechanism. FIG. 6A is a front view, FIG. 6B is a side view, FIG. 6C is a view showing a second handle body of the handle portion of the mechanism, and FIG. , (A) is a front view, (b) is a side view, (c) is a rear view, FIG. 7 is a view showing a drive piece of the mechanism, (a) is a front view, and (b) is a side view. , (C) is a rear view, (d) is a sectional view, FIG. 8 is a view showing a display piece of the mechanism, (a) is a front view, (b) is a side view, and (c) is a rear view. , (D) is a sectional view, and FIG. 9 is a view showing a rocker switch of the same mechanism. There are, (a) is a front view, (b) is a side view, a back view is (c).

  The sliding door locking mechanism shown here is a locking mechanism that is provided at one end 21 on the sliding closing side of the sliding door 20 that is slidable on the frame body 10 and holds the sliding door 20 in a closed state. A housing 100 having a pivot lock, and a kama lock 200 that is pivotally supported inside the housing 100 and protrudes from an opening 121 of the housing 100 and engages with the engagement hole 11a of the frame body 10; A rotating piece 300 that can be rotated according to the rotation of the kama lock 200, a handle portion 400 that is attached to the other end of the housing 100 so as to sandwich the sliding door 20, and a member for rotating the rotating piece 300; A drive piece 500 is provided on the handle portion 400 so as to be movable up and down, and a rocker switch 600 for moving the drive piece 500 up and down. Hereinafter, each part will be described in detail.

  As shown in FIGS. 1 and 2, the frame 10 is a rectangular frame, and includes a pair of vertical frames 11 and 12, and horizontal frames 13 and 14 passed above and below the vertical frames 11 and 12. The right side of the figure is closed with a plate. At least one of the horizontal frames 13 and 14 is provided with a guide rail (not shown) for slidably holding the sliding door 20, and the left side portion shown in the figure can be opened and closed by the sliding door 20. An engagement hole 11 a is formed in the end surface of the vertical frame 11.

  As shown in FIGS. 1 and 2, the sliding door 20 is a rectangular plate, and includes a fitting hole 21a that is a rectangular hole into which the housing 100 is fitted into the one end 21 on the slide closing direction side. An oval mounting hole 21b that communicates with the fitting hole 21a and penetrates the sliding door 20 in the thickness direction is provided. The handle 400 is fitted into the mounting hole 21b.

  As shown in FIG. 2, the housing 100 includes a cylindrical main body 110 that fits in the fitting hole 21, and a mounting plate 120 that is provided so as to close one open end surface of the main body 110. As shown in FIG. 3, the mounting plate 120 is a plate that is screwed to the end face of the one end portion 21 of the sliding door 20, and is provided with an opening 121.

  As shown in FIG. 2 and FIG. 3, the kama lock 200 is a substantially 1-shaped member having a number, and a resin plate 220 is sandwiched between two metal plates. The shape of the tip portion is slightly larger than that of the metal plate so that the resin plate 220 protrudes from the tip portion 210 of the kama lock 200. The resin plate 220 is provided with a protrusion 221 (that is, a buffer material) that protrudes from one end surface of the kama lock 200 in the rotational direction in the width direction. This protrusion 221 abuts on the opening edge of the opening 121 of the housing 100 and eliminates the sound generated during engagement.

  The kama lock 200 has a rear end portion pivotally supported in the housing 100, and a front end portion 210 extending from an accommodation position where the distal end portion 210 is accommodated in the housing 100 to a projecting position where the front end portion 210 projects from the opening 121 of the housing 100. It is movable. The tip portion 210 of the kama lock 200 is bent in a hook shape and is engaged with the engagement hole 11a of the frame body 10, whereby the sliding door 20 is held in the closed state by the frame body 10 (ie, locked state). )

The rotating piece 300 is a substantially heft-shaped member rotatably provided on the housing 100 and connects the kama lock 200 and the driving piece 500. That is, as shown in FIG. 2, the movement of the driving piece 500 is transmitted to the rotating piece 300 by the connecting rod 800 passing through the through hole 310 formed at the tip of the rotating piece 300. As a result, the hook lock 200 can be rotated in accordance with the vertical movement of the drive piece 500.

  As shown in FIGS. 4, 5, and 6, the handle portion 400 is fitted into the mounting hole 21 b of the sliding door 20 from one side and the fitting body 21 from the other side, And a second handle body 420 screwed to the first handle body 410.

  As shown in FIG. 5, the first handle body 410 accommodates a concave gripping part 411 provided on the front surface side on which a user puts a hand, and a rocker switch 600 provided integrally in the gripping part 411. And a guide portion 413 (see FIG. 5C) for guiding the drive piece 500 provided on the back surface side so as to be movable up and down. At both ends of the housing portion 412, shaft support portions 412 a and 412 a for supporting the rocker switch 600 are provided. In addition, an opening 412 b that faces the convex portion 520 of the driving piece 500 is provided on the bottom surface of the housing portion 412.

  As shown in FIG. 6, the second handle body 420 includes a concave grip portion 421 provided on the front surface side on which the user puts a hand, and a display piece 700 described later provided at a position above the grip portion 421. It has a display port 422 through which the display surface is exposed, and a guide portion 423 (see FIG. 6C) that guides the display piece 700 provided on the rear surface side so as to move up and down.

Driving piece 500, as shown in FIGS. 4 and 7, a member which is vertically movably guided by the guide portion 413 of the first handle member 410, first, second driving side connected to an upper end portion Holes 511 and 512 are provided. The first and second driving piece side connecting holes 511 and 512 are each provided with a display piece 700 according to the distance (the so-called back step amount) from the end surface of the one end portion 21 of the sliding door 20 to the center line of the mounting hole 21b. In addition, the connecting rod 800 for connecting to the rotating piece 300 is inserted and selectively used.

  A convex portion 520 is provided at the lower end portion of the driving piece 500 so as to face the opening 412 b of the housing portion 412 of the first handle body 410 and face the back surface of the rocker switch 600. The convex portion 520 is pressed by the rocker switch 600 in the vertical direction.

As shown in FIGS. 4 and 8, the display piece 700 is a member guided by the guide portion 423 of the second handle body 420 so as to be movable up and down, and the first and second of the drive piece 500 at the upper end portion. The first and second display one side connection holes 711 and 712 that face the drive one side connection holes 511 and 512 are provided. The first and second display one-side connecting holes 711 and 712 are selectively used when the connecting rod 800 is inserted into one of them depending on the back step amount of the sliding door 20.

  That is, the display piece 700 moves up and down together with the drive piece 500. On the surface of the display piece 700 facing the second handle 420, there is provided a display surface 720 indicating the locked state and unlocked state of the sliding door 20, for example, with an opening / closing character. That is, the opening / closing characters of the display surface 720 are alternately exposed from the display port 522 of the second handle 420 as the display piece 700 moves up and down.

  As shown in FIGS. 4 and 9, the rocker switch 600 is a member having a substantially inverted letter when viewed from the side. The rocker switch 600 rotates at both ends thereof to the shaft support portions 412a and 412a of the housing portion 412 of the first handle body 410. A pair of shaft portions 710 and 710 that are pivotally supported is provided. The rocker switch 600 has an operation surface whose surface is exposed from the housing portion 412, and upper and lower protrusions 721 and 722 are provided on the back surface facing the driving piece 500. That is, when the rocker switch 600 is pressed, the upper and lower protrusions 721 and 722 press the convex portion 520 of the driving piece 500 from the upper side and the lower side, thereby moving the driving piece 500 and the display piece 700 up and down.

  A method of using the lock mechanism having such a configuration will be described, and the operation of each part will be described. In the unlocked state, the tip portion 210 of the kama lock 200 is located at the storage position.

  First, the sliding door 20 is slid to close the frame body 10. Then, the upper part of the surface of the rocker switch 600 is pressed. Then, the rocker switch 600 rotates, the convex portion 520 of the drive piece 500 is pressed from the upper side by the upper protrusion 721 of the rocker switch 600, and the drive piece 500 and the display piece 700 move downward. At this time, the closed character written on the display surface 720 of the display piece 700 is displayed from the display port 522 of the second handle body 420.

  As the drive piece 500 moves, the rotary piece 300 rotates, the hook lock 200 rotates, and the tip 210 moves from the storage position toward the protruding position. When the distal end portion 210 of the kama lock 200 is located at the protruding position, it is engaged with the engagement hole 11 a of the vertical frame 11 of the frame body 10. It is locked in this way.

  Thereafter, when unlocking, the lower part of the surface of the rocker switch 600 is pressed. Then, the rocker switch 600 rotates, and the convex portion 520 of the drive piece 500 is pressed from the lower side by the lower protrusion 722 of the rocker switch 600. As a result, the drive piece 500 and the display piece 700 move upward. At this time, an open character written on the display surface 820 of the display piece 700 is displayed from the display port 522 of the second handle body 420.

  As the drive piece 500 moves, the rotary piece 300 rotates, the kama lock 200 rotates, and the tip 210 moves from the protruding position toward the accommodation position. As a result, the vertical frame 11 is disengaged from the engagement hole 11a and unlocked.

  In the case of such a locking mechanism, the drive piece 500 is moved up and down simply by depressing the rocker switch 600, whereby the kama lock 200 is rotated and locked or unlocked. Such a pressing operation of the rocker switch 600 does not require a large force as compared with the operation of vertically moving the protrusion of the driving piece of the conventional example. Therefore, even a weak person such as an elderly person can easily operate. Therefore, usability is improved.

  In addition, since the upper and lower protrusions 721 and 722 of the rocker switch 600 can come into contact with the convex portion 520 of the drive piece 500 from the upper and lower sides, the upper and lower protrusions 721 and 722 are attached to the drive piece 500. It functions not only as a contact portion for abutting and driving, but also as a stopper portion of the drive piece 500 that prevents inadvertent operation. In other words, the sliding door 20 is subjected to an impact and the drive piece 500 can be prevented from operating inadvertently, so that the Kama lock 200 malfunctions when the drive piece 500 is inadvertently driven. Can be prevented. Therefore, a highly reliable mechanism can be obtained as compared with the conventional example.

  The sliding door locking mechanism is rotatably provided at one end of the sliding door on the slide closing direction side which is slidable on the frame, and projects from the opening on the end face of the one end to engage the frame. Kama lock that can be engaged with the joint hole, and a drive piece that can be moved up and down to rotate from the housing position in which the kama lock is housed in one end of the sliding door to the projecting position that projects from the opening of the end face of the one end. And a rocker switch that can rotate in response to a pressing operation. The rocker switch abuts on the drive piece in response to rotation, thereby moving the drive piece up and down. Any design changes can be made as long as they are designed to do so.

  The casing 100 may be anything as long as it has an opening from which the tip 210 of the kama lock 200 protrudes and can support the kama lock 200 and the rotating piece 300. For example, the opening can be provided by closing one end of the main body 110 without providing the mounting plate 120.

  The kama lock 200 is pivotally supported by the housing 100 and provided on the sliding door 20. However, it can be provided directly on the sliding door 20. In this case, the rotary piece 300 is also provided directly on the sliding door 20 in the same manner. Further, although the resin plate 220 is sandwiched between two metal plates, any material may be used as long as it can function as a kama lock.

  The drive piece 500 is guided by the first handle body 410 of the handle portion 400 so as to be movable up and down. However, it is possible to provide a guide portion on the sliding door 20 so as to be directly provided on the sliding door 20. . Although the driving piece 500 is connected to the display piece 700, it can be omitted.

It is a typical front view of the sliding door provided with the locking mechanism of the sliding door which concerns on embodiment of this invention. It is a schematic enlarged view of A part, Comprising: It is a figure of the state which permeate | transmitted the internal structure of the handle part and fracture | ruptured a part of mounting plate of a housing | casing. It is an enlarged front view of A part. It is the side view which a part of the mechanism permeate | transmitted. It is a figure which shows the 1st handle body of the handle part of the mechanism, (a) is a front view, (b) is a side view, (c) is a rear view. It is a figure which shows the 2nd handle body of the handle part of the mechanism, (a) is a front view, (b) is a side view, (c) is a rear view. It is a figure which shows the drive piece of the mechanism, (a) is a front view, (b) is a side view, (c) is a rear view, (d) is sectional drawing. It is a figure which shows the display piece of the mechanism, (a) is a front view, (b) is a side view, (c) is a rear view, (d) is sectional drawing. It is a figure which shows the rocker switch of the mechanism, (a) is a front view, (b) is a side view, (c) is a rear view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Frame 11 Vertical frame 11a Engagement hole 20 Sliding door 21 End part 100 Case 121 Opening 200 Kama lock 210 Tip part 500 Drive piece 520 Convex part 600 Rocker switch 621 Upper protrusion 622 Lower protrusion

Claims (3)

In a sliding door locking mechanism provided at one end of the sliding door in the sliding closing direction of the sliding door which is slidable on the frame and holding the sliding door in a closed state,
A housing having an opening, a kama lock that is pivotally supported inside the housing and protrudes from the opening of the housing and engages with an engagement hole of the frame, and a rotation of the kama lock. A rotating piece that can be rotated according to the movement, a handle portion that is attached so as to sandwich the sliding door on the other end side of the casing, and a member that rotates the rotating piece and that can be moved up and down in the handle portion. Drive piece, a rocker switch for moving the drive piece up and down, a display piece interlocking with the vertical movement of the rocker switch, and a connecting rod for connecting the rocker switch and the display piece. ,
The drive piece has two drive piece side connection holes that are selectively used according to the distance from the end face of one end of the sliding door to the center line of the mounting hole into which the handle is fitted, and the display piece has the drive piece. Two display one-side connection holes corresponding to the one-side connection holes are provided, and both ends of the connection rod are inserted into the drive one-side connection hole and the display one-side connection hole, and the connection rod penetrates the rotating piece. A sliding door locking mechanism characterized by passing through a hole .   2. The sliding door locking mechanism according to claim 1, wherein the drive piece is provided with a convex portion, and on the drive piece facing surface of the rocker switch, an upper protrusion capable of contacting the convex portion of the drive piece from above, and A sliding door locking mechanism, wherein a protrusion on the driving piece is provided with a lower protrusion capable of contacting from a lower side.   3. The sliding door locking mechanism according to claim 1 or 2, wherein a cushioning material capable of contacting an opening edge of an end surface of one end of the sliding door is provided on one end surface on the rotational direction side in the width direction of the hook lock. A sliding door lock mechanism.