JP5111130B2 - Sliding door locking device - Google Patents

Description

  The present invention relates to a sliding door locking device that can be easily opened / closed and locked / unlocked with one hand via a common handle. In the present invention, the sliding door is a general term for sliding doors that are opened and closed left and right, suspension doors, shojis, and the like.

  The sliding door that opens and closes to the left and right can smooth the series of operations and improve the design of the appearance by sharing the opening and closing handle for locking and unlocking operations.

For example, a locking hook member is swingably incorporated in a sliding door-type shoji door, and the pulling handle on the saddle is linked to the hook member so that the shoji is automatically closed when the shoji is fully closed. The hook member to be locked can automatically unlock the shoji only by driving the shoji in the opening direction via the handle (Patent Document 1). In addition, it is also known that a rotary sickle lock is incorporated into a saddle on the door end side of the sliding door, and a pull handle for opening and closing attached to the saddle is interlocked with the sickle lock (Patent Document 2).
JP 2000-54712 A Japanese Patent Laid-Open No. 2007-107381

  When such a prior art is used, the locking hook member and sickle lock are assembled together with the handle on the side of the sliding door, so that the operation position is limited to the sliding door and the operational freedom. In addition to the degree of limitation, there is a problem that it is not always easy to improve the design of the appearance.

  Therefore, in view of the problems of the prior art, an object of the present invention is to perform a necessary series of operations lightly with one hand by combining an operation unit mounted on a sliding door and a lock member installed on the upper end of the sliding door. It is another object of the present invention to provide a sliding door locking device that can easily achieve good design.

  The configuration of the present invention for achieving such an object includes an operation part mounted on the sliding door and a lock member installed upward at the upper end of the sliding door, and the operation part is provided on one side of the sliding door via the guide base. There is a handle for opening and closing the sliding door that can be moved up and down, a display unit mounted on the opposite surface of the sliding door symmetrically with the guide base, and a drive unit in the sliding door interposed between the guide base and the display unit. When the handle is moved up and down, the drive unit drives the lock member to the upper and lower locked and unlocked positions via the connecting member, and the display unit displays the drive position of the lock member by the drive unit to the outside. The gist is to do.

  The guide base incorporates a first pinion that meshes with a rack integral with the handle, and the drive unit incorporates a second pinion that interlocks with the first pinion and meshes with a rack formed on the connecting member. The display unit may include a display plate that is rotationally driven via a rotation axis common to the first and second pinions.

  Further, the connecting member may connect the lower member on the drive unit side and the upper member on the lock member side so as to be extendable, and the display unit may be integrally formed with a handle for opening and closing the sliding door. The guide base and the display unit may be fixed to both surfaces of the sliding door via screws that penetrate the drive unit.

  According to this configuration, the handle for opening / closing the sliding door is mounted on one side of the sliding door via the guide base so as to be movable up and down. Therefore, when the sliding door is closed to the fully closed position via the handle and the handle is moved, for example, downward, the drive unit drives the locking member at the upper end of the sliding door to the upper locking position via the connecting member, and the locking member The sliding door can be locked so as not to be opened. However, the fixing member such as the upper frame above the sliding door is provided with an engaging portion for engaging the locking member in the locked position from below so as to correspond to the locking member on the sliding door when fully closed. Shall. On the other hand, the sliding door locked in the fully closed state is unlocked by moving the handle upward, for example, and driving the lock member to the lower unlocking position, and can be opened as it is through the handle. . That is, the sliding door opening / closing operation and the locking / unlocking operation can be performed continuously and lightly with one hand through a common handle. Moreover, since the installation position of the handle or the lock member is not limited to the sliding door, it can be easily applied to a sliding door that has a high degree of freedom in operation and does not have a folding.

  For example, the handle is attached to one side of the indoor side of the sliding door and locks the sliding door when fully closed from the indoor side, while the display unit on the outdoor side indicates the driving position of the lock member, that is, the locking state of the sliding door to the outside. Can be displayed. However, the handle and the display unit can be attached to the outdoor side and the indoor side of the sliding door, respectively.

  The first pinion incorporated in the guide base for the handle rotates in the forward and reverse directions according to the vertical movement of the handle by engaging with a rack integrated with the handle. On the other hand, the second pinion incorporated in the drive unit meshes with the rack formed on the coupling member and rotates in the forward and reverse directions in conjunction with the first pinion to move the coupling member up and down according to the vertical movement of the handle. The lock member can be driven to the upper and lower locking positions and the unlocking position via the connecting member.

  The display unit displays the drive position of the lock member by the vertical movement of the handle, that is, the locked state of the sliding door, by rotating the display plate via a rotation shaft common to the first and second pinions. Can do. However, the first and second pinions are combined with a common rotation shaft so that they cannot be rotated relative to each other, and the display panel is exposed to the outside through a display window, for example, so that the rotation position is displayed to the outside. .

  The connecting member that connects the lower member and the upper member in a telescopic manner is such that the vertical movement stroke of the lock member is made lower than the vertical movement stroke of the handle by making the latter smaller than the former for each vertical movement stroke of the lower member and the upper member. It can be set small and the relative relationship between the two can be adjusted appropriately. However, the vertical movement stroke of the handle is preferably matched to the vertical movement stroke of the lower member by, for example, aligning the pitch and the number of teeth of the first and second pinions on the common rotation axis.

  If the pulling door for opening / closing the sliding door is formed integrally with the display portion, the appearance of the sliding door on the display portion side can be summarized more simply. Further, the guide base and the display unit can be easily fixed to both surfaces of the sliding door at once by a screw passing through the driving unit in the sliding door.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The sliding door locking device includes an operation unit 10 mounted on the sliding door 31 and a lock member 21 installed on the upper end of the sliding door 31 (FIGS. 1 and 2).

  The sliding door 31 is assembled so that it can be opened and closed to the left and right with respect to the door frame 32 composed of the upper frame 32a, the door end side, and the door bottom side hook frames 32b and 32c. In addition, the fixed wall 32d is provided in about half of the door bottom side of the door frame 32, and the sliding door 31 is drawn into the back surface side of the fixed wall 32d so that the opening W is left with the left w left. The entire surface can be opened (direction of arrow K in FIG. 2, two-dot chain line). The sliding door 31 in FIG. 2 is a suspension door that is suspended from a guide rail (not shown) in the upper frame 32a via a suspension wheel (not shown), and in the fully closed state, the lower end of each of the fixed wall 32d and the saddle frame 32b. A gap G corresponding to the skirting boards 32e and 32e is formed in the lower part. However, the sliding door 31 may be a hanging door that does not cause the gap G, or may be a general sliding door or a shoji that opens and closes to the left and right via upper and lower bays, sills, and guide rails.

  The operation unit 10 includes a handle 11 that is attached to both surfaces of the sliding door 31, a display unit 12, and a driving unit 13 in the sliding door 31, and the lock member 21 is a driving unit in the sliding door 31 via a connecting member 22. 13 is connected. The handle 11 is mounted on one side (inside the room) of the sliding door 31 via the guide base 14 so as to be movable up and down, and the display unit 12 is mounted on the opposite side (outside) of the sliding door 31 symmetrically with the guide base 14. Has been. A pulling handle 15 for opening / closing the sliding door 31 is attached below the display unit 12.

  The guide base 14 for the handle 11 is fixed to both surfaces of the sliding door 31 together with the display unit 12 via two screws 16 and 16 (FIGS. 1 and 3). The screws 16 and 16 are long bolts, penetrate the drive unit 13 in the sliding door 31 from the guide base 14 side, and are screwed into the sockets 12a and 12a on the back side of the display unit 12 (FIG. 3, FIG. 4). On the left and right side surfaces of the guide base 14, vertical guide grooves 14a and 14a are formed, respectively, and the handle 11 slidably engages the inner left and right engagement plates 11a and 11a with the guide grooves 14a and 14a. Thus, the guide is guided in the vertical direction via the guide base 14. However, FIG. 3 shows only one engagement plate 11a on the side where the vertical rack 11b is formed, and the other engagement plate 11a which faces the rack 11b and does not form the rack is shown. It is omitted.

  The guide base 14 is internally provided with a first pinion 14 b that meshes with a rack 11 b integrated with the handle 11. One end of a rotary shaft 17 having a square cross section is inserted into the first pinion 14b from the drive unit 13 side. The other end of the rotary shaft 17 penetrates the drive unit 13 and the display plate of the display unit 12 It is connected to the shaft 12b. In addition, the display board 12b can display the rotation angle of the rotating shaft 17 outside by exposing a part through the display window 12c on the surface side of the display unit 12 to the outside. However, the display board 12b is color-coded around the axis, and the rotary shaft 17 can be rotated from the outside via the emergency operation groove 12d at the shaft end.

  The drive unit 13 houses a second pinion 13c on the rotating shaft 17 and a spring 13d in a case 13a with a lid 13b (FIGS. 3 and 5). 5A and 5B are an exploded perspective view of the drive unit 13 and an enlarged view corresponding to the arrow X in FIG. 5A, respectively. In addition, the lower end part of the plate-shaped connection material 22 has penetrated through the case 13a so that sliding up and down is possible.

  An upper and lower rack 22 a that meshes with the second pinion 13 c on the rotating shaft 17 is formed at the lower end of the connecting member 22. The rack 22a is formed on one long side of the long hole 22b at the lower end of the connecting member 22. The long hole 22b accommodates the second pinion 13c and can relatively move the connecting member 22 up and down by a predetermined vertical movement stroke without interfering with the screws 16 and 16 penetrating the drive unit 13.

  The spring 13d is attached to the short shaft 13e in the case 13a. The second pinion 13c is rotatably held through round holes 13f and 13f formed in the case 13a and the lid 13b, and a washer 13g is attached to the case 13a side. One end of the spring 13d is engaged with the inner surface of one side wall of the case 13a, and the other end is elastically engaged with the outer periphery of the rotating shaft 17, so that the rotation of the rotating shaft 17 is light and intermittent. The brake force is expressed (solid line, two-dot chain line in FIG. 5B). However, the short shaft 13e for the spring 13d is provided at a position close to the side wall on the opposite side of the case 13a, and the spring 13d is elastic with respect to the rotating shaft 17 from the upper right direction in FIG. May be engaged.

  The lock member 21 is connected to the upper end of the connecting member 22 (FIGS. 1 and 3). The lock member 21 is housed in an upper open guide case 21a so as to be movable up and down, and is installed upward at the upper end of the sliding door 31 via the mounting base 21b. The guide case 21a is screwed to the mounting base 21b via mounting screws 21c and 21c, and the mounting base 21b is screwed to the sliding door 31 via mounting screws 21d, 21d. The lock member 21 is driven into the guide case 21a and the locking position (solid line in FIG. 1, FIG. 2) which protrudes from the upper end of the sliding door 31 and engages with the upper frame 32a by driving the connecting member 22 up and down. The unlocking position (two-dot chain line in FIG. 1) can be taken. The upper frame 32a has an engagement portion (not shown) that engages the lock member 21 from below so as to correspond to the lock member 21 on the sliding door 31 when fully closed.

  As long as the lock member 21 is in the unlocked position, the sliding door 31 can be opened and closed left and right through the outdoor handle 15 or the indoor handle 11. In addition, the sliding door 31 can be locked so that it cannot be opened by closing the fully closed state and driving the lock member 21 to the upper locking position from the indoor side via the handle 11.

  That is, when the sliding door 31 is fully closed and the handle 11 is moved downward (in the direction of each arrow K1 in FIGS. 1 and 3), the first pinion 14b in the guide base 14 is passed through the rack 11b in the handle 11. And the rotary shaft 17 is driven to rotate (in the direction of arrow K2 in FIG. 3). Therefore, the second pinion 13c in the drive unit 13 on the rotary shaft 17 is rotationally driven in the same direction, and the connecting member 22 is driven upward via the second pinion 13c and the rack 22a (arrow K3 in FIG. 3). Direction), the locking member 21 can be driven to the upper locking position. At this time, the display board 12b of the display unit 12 rotates together with the rotating shaft 17, and the locked state of the sliding door 31 is displayed to the outside via the display board 12b. However, FIGS. 1 to 4 show a state in which the handle 11 is lowered, the connecting member 22 is raised, and the lock member 21 is driven to the locking position.

  When unlocking the locked sliding door 31, the handle 11 is moved upward, and the lock member is moved via the rack 11b, the first pinion 14b, the rotating shaft 17, the second pinion 13c, the rack 22a, and the connecting member 22. What is necessary is just to drive 21 to a lower unlocking position. Also at this time, the unlocking state of the sliding door 31 is displayed on the display unit 12. Note that the sliding door 31 locked from the indoor side can be unlocked from the outdoor side as needed by applying a screwdriver or the like to the emergency operation groove 12d of the display unit 12. In addition, since the intermittent rotation force is applied to the rotating shaft 17 via the spring 13d, an appropriate click feeling can be obtained during the locking / unlocking operation by the handle 11.

  In the above description, in order to display the locking / unlocking direction of the sliding door 31 by the handle 11, an indication nameplate 11 c having upward and downward arrows can be attached in the vicinity of the handle 11 on the sliding door 31 ( FIG. 6). FIG. 6 also shows an auxiliary nameplate 11d appearing from the bottom of the handle 11 when the handle 11 is driven downward to lock the sliding door 31, and the auxiliary nameplate 11d faces the handle 11 upward. When the sliding door 31 is unlocked by driving, it is concealed by the handle 11 (two-dot chain line in the figure).

Other embodiments

  The connecting member 22 can connect the lower member 22c on the drive unit 13 side and the upper member 22d on the lock member 21 side so as to be extendable (FIGS. 7 and 8). 8A and 8B are enlarged cross-sectional views corresponding to FIG. 1 showing a state in which the lock member 21 of FIG. 7 is driven to the locked position and the unlocked position, respectively.

  At the upper end of the lower member 22c, vertical holes 22c1, 22c1 are formed in two rows. Further, left and right guide ribs 22d1, 22d1 for guiding the lower member 22c in the vertical direction are formed at the lower end of the upper member 22d, and the upper member 22d is a connecting pin 22d2 inserted into the long holes 22c1, 22c1 of the lower member 22c. , 22d2, and is connected to the lower member 22c in an extendable manner. The upper end of the upper member 22d is connected to the lock member 21 in the guide case 21a via a connecting pin 22e. Further, the lock member 21 accommodates the balls 21f and 21f together with the spring 21e in the horizontal hole 21g, and the balls 21f are formed in a pair of holes 21a1, 21a1,. , 21f can be engaged with each other in a stable manner in either the upper locking position (FIG. 8A) or the lower unlocking position (FIG. 8B). .

  When the lower member 22c is driven up and down via the drive unit 13 at the lower end of the lower member 22c, and the lock member 21 is driven to the upper and lower locked and unlocked positions via the upper member 22d, the upper member 22d and the lock member The vertical movement stroke a of 21 corresponds to the distance between the upper and lower holes 21a1, 21a1 of the guide case 21a. On the other hand, in the lower member 22c, when the lock member 21 is pushed up to the upper locking position, each connecting pin 22d2 on the upper member 22d side is positioned at the lower end of the corresponding long hole 22c1 (FIG. 8A), and the lock member 21 is moved. When the screw is pulled down to the lower unlocking position, it moves relative to the upper member 22d so that each connecting pin 22d2 is positioned at the upper end of the long hole 22c1 (FIG. 5B).

  Therefore, if the effective length b of each long hole 22c1 is set, the vertical movement stroke c of the lower member 22c is c = a + b> a. That is, in general, the rack 11b and the first pinion 14b in the handle 11, the second pinion 13c and the rack 22a on the side of the connecting material 22 are arranged so that the handle 11, the connecting material 22, the lock Each member 21 has the same vertical movement stroke, but the lower member 22c and the upper member 22d are divided into the connecting member 22 so that both members can be expanded and contracted. The upper member 22d and the lock member 21 can be realized with respect to 22c.

  A pulling handle 18 for opening / closing the sliding door 31 may be integrally formed on the display unit 12 (FIG. 9). However, FIG. 9 (A) is the principal part figure equivalent to FIG. 1, the figure (B), (C) is an enlarged view equivalent to the arrow Y of the figure (A), respectively, and a ZZ line arrow view. It is a considerable enlarged view.

  The handle 18 is formed in a knob shape that protrudes highly on the surface of the sliding door 31 instead of the embedded handle 15. The pedestal portion of the handle 18 is formed by extending the display unit 12 downward, and a rotation-preventing projection 18 a that protrudes toward the sliding door 31 is formed on the back side.

  In the above description, the handle 11 and the lock member 21 may be in the same direction instead of the opposite vertical movement directions. For example, in FIG. 5A, by forming the rack 22a of the connecting member 22 on the long side opposite to the long hole 22b, the handle 11 is moved upward to drive the lock member 21 to the upper locking position. It can be moved downward and driven to the lower unlocking position.

Overall configuration longitudinal section Front view of sliding door (outside) Whole exploded perspective view Main part exploded perspective view Main part configuration diagram Front view of main part (inside the room) The principal part disassembled perspective view which shows other embodiment. FIG. 7 is an explanatory diagram of the configuration. Configuration explanatory diagram showing another embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Operation part 11 ... Handle 11b ... Rack 12 ... Display part 12b ... Display board 13 ... Drive part 13c ... 2nd pinion 14 ... Guide base 14b ... 1st pinion 16 ... Screw 17 ... Rotating shaft 18 ... Pull handle 21 ... Lock member 22 ... Connecting material 22a ... Rack 22c ... Lower member 22d ... Upper member 31 ... Sliding door

Patent Applicant Komatsu Wall Industry Co., Ltd.
Attorney Tadaaki Matsuda, Attorney

Claims (6)

  An operation unit mounted on the sliding door and a lock member installed upward on the upper end of the sliding door are provided, and the operation unit is used for opening and closing the sliding door that is mounted on one side of the sliding door via the guide base so as to be movable up and down. A handle, a display unit mounted on the opposite surface of the sliding door symmetrically with the guide base, and a driving unit in the sliding door interposed between the guide base and the display unit, the driving unit holding the handle When moved up and down, the lock member is driven to the upper and lower locked and unlocked positions via a connecting member, and the display unit displays the drive position of the lock member by the drive unit to the outside. A sliding door locking device.   A first pinion that engages with a rack integral with the handle is incorporated in the guide base, and a second gear that interlocks with the first pinion and engages with a rack formed on the connecting member is incorporated in the drive unit. 2. A sliding door locking device according to claim 1, wherein a pinion is incorporated.   3. The sliding door locking device according to claim 2, wherein the display unit includes a display plate that is rotationally driven via a rotation shaft common to the first and second pinions.   4. The sliding door locking device according to claim 1, wherein the connecting member connects the lower member on the drive unit side and the upper member on the lock member side in an extendable manner. 5.   The sliding door locking device according to any one of claims 1 to 4, wherein the display portion is integrally formed with a pulling handle for opening and closing the sliding door.   6. The sliding door locking device according to claim 1, wherein the guide base and the display unit are fixed to both surfaces of the sliding door through screws passing through the driving unit.

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