JP2009263947A - Flat sliding door - Google Patents

Abstract

The present invention provides a flat sliding door that can freely change the left and right positions of an open / close panel and a shift panel, and that allows both panels to completely overlap each other in the open state so that the open width can be increased.
An open / close panel 6 that can be opened / closed left / right, a shift panel 5 that can be opened / closed left / right and shifted forward / backward, and a shift mechanism for shifting the shift panel 5 forward / backward. The shift mechanism includes a base 24, a rack block 25 that slides back and forth, a shift spring 28, a pair of pinion levers 26 that are swung back and forth by the rack block 25, and a back and forth swing in conjunction with both pinion levers 26. And a parallel link mechanism 27. The shift panel 5 is connected to the output lever 45 of the pair of left and right parallel link mechanisms 27 so that the shift panel 5 can be shifted in parallel from the closed position to the retracted position.
[Selection] Figure 1

Description

  The present invention relates to a flat sliding door that is applied to a kitchen cabinet or the like, and more particularly, to a flat sliding door that opens and closes adjacent door panels with front and rear rail grooves of guide rails provided above and below a cabinet opening.

  This type of flat sliding door is known, for example, from US Pat. There, the door panels adjacent to each other in the closed state can be opened and closed by a pair of front and rear guide rails via a runner. One door panel (hereinafter referred to as an open / close panel) is guided by a guide rail through the runner frame and the runner so that it can be opened and closed only on the left and right. The other door panel (hereinafter referred to as “shift panel”) is guided by a guide rail so that it can be opened and closed freely through the runner frame and the runner, and further through the link arm provided between the runner frame and the door panel. It is supported so that it can shift to the right.

  In order to shift the shift panel to the front of the open / close panel when opening the door panel, a dedicated guide rail (hereinafter referred to as a shift rail) is provided at the top and bottom of the open / close panel, and the runner frame and link arm at the end. Each of them is provided with a roller guided by a shift rail. In addition, a movement synchronization means is provided between the open / close panel and the shift panel in order to shift the vertical shift mechanism back and forth in synchronization.

Japanese Patent Laid-Open No. 2003-193738

  According to the above-described flat sliding door, by opening one of the opening / closing panel and the shift panel, the shift panel can be shifted to the front of the cabinet, and the two panels can be opened and closed. However, since the movement synchronization means is provided between the two panels, the left and right positions of the open / close panel and the shift panel cannot be interchanged. This means that in a cabinet having three or more door panels, it is necessary to always open and close the door panels according to a certain procedure, and it is inevitable that the usability is deteriorated. Further, since the movement synchronization means is provided, both panels can be opened only until the side edge of one panel protrudes from the side edge of the other panel in the fully opened state, and there is an inconvenience that the cabinet opening cannot be opened largely.

  Furthermore, since the rollers provided on each of the runner frame and the link arm are moved and guided by the shift rail and the shift panel is shifted to the front of the cabinet, there is a gap between adjacent panels when both panels are closed. Inevitable. This is because when the shift panel shifts to a position where it can be drawn, it is guided by the shift rail and displaced obliquely forward. The left and right gaps necessary to complete the shift movement are separated from the open / close panel. It is because it is necessary to provide between the shift panels.

  It is an object of the present invention to provide a flat sliding door that can freely change the left and right positions of the open / close panel and the shift panel, and that allows both panels to completely overlap each other in the open state so that the cabinet opening can be greatly opened. It is in. The object of the present invention is to allow the shift panel to translate back and forth between the closed position and the retracted position, and thus prevent gaps from forming between adjacent panels when all door panels are closed. Thus, it is an object of the present invention to provide a flat sliding door that can surely prevent the invasion of pests and dust, and can further improve the appearance. SUMMARY OF THE INVENTION An object of the present invention is to provide a flat sliding door that is easy to use and can be shifted automatically by a one-touch operation, and can be held in the closed position only by returning the shifted shift panel to the closed position. There is.

  The flat sliding door of the present invention includes an opening / closing panel 6 that can be opened / closed only in the left / right direction, and a shift panel 5 that can be opened / closed in the left / right direction and shifted forward and backward. The shift panel 5 is provided with a shift mechanism that shifts the shift panel 5 back and forth, and a lock mechanism that locks and holds the shift panel 5 in the closed position. The shift mechanism is a base 24 fixedly supported by the runner 15, a rack block 25 supported slidably forward and backward by the base 24, and meshes with the rack block 25 to convert the forward / backward sliding motion of the rack block 25 into forward / backward swing. It includes a pair of left and right pinion levers 26, a parallel link mechanism 27 that swings back and forth in conjunction with both pinion levers 26, and a shift spring 28 that moves and urges the rack block 25 toward the rear of the base. The shift panel 5 is connected to the output lever 45 of the pair of left and right parallel link mechanisms 27. Thus, the shift panel 5 can be translated back and forth between the closed position and the retracted position.

  The parallel link mechanism 27 includes a pinion lever 26, a first link 43 and an output lever 45 that are connected to the pinion lever 26, and a second link 46 that connects the first link 43 and the output lever 45. A pin 47 for connecting the first link 43 and the second link 46 is guided and supported by a guide body 49 provided on the base 24 so that only reciprocating sliding is possible.

  In a state where the shift panel 5 is moved to the retracted position, a part of the output lever 45 is received and supported by the restriction frame 51 provided on the base 24 so that it cannot be lifted off.

  The lock mechanism includes a lock claw 54 provided on the shift panel 5 side, a lock engagement portion 55 provided in the rack block 25 corresponding to the lock claw 54, and the lock claw 54 engaged with the lock engagement portion 55. A lock spring 56 that moves and urges the lock spring 56 in a direction and a lock release tool that unlocks the lock claw 54 against the urging force of the lock spring 56 are included. In the locked state in which the lock claw 54 and the lock engaging portion 55 are engaged, the rack block 25 is held at the standby position in front of the base against the urging force of the shift spring 28. In the unlocked state in which the engagement between the lock claw 54 and the lock engaging portion 55 is released, the rack block 25 is moved to the shift position behind the base by the shift spring 28, and the shift panel 5 is displaced to the reverse position. Can be operated.

  The lock release tool of the lock mechanism includes a release tool 65 assembled to the front surface of the shift panel 5, a pair of upper and lower release rods 66 and 67 fixed to the lock claw 54, and between the release tool 65 and the release rods 66 and 67. And a cam groove 80 and a passive pin 77 that pulls the release rods 66 and 67 toward each other in response to the unlocking operation of the release tool 65.

  The upper and lower runners 15 fix and support the upper frames 10 and 20 and the lower frames 11 and 12. Both frames 10, 20, 11, 12 are connected via vertical frames 12, 22. The hooks 85 are fixed to a plurality of positions on the inner surfaces of the shift panel 5 and the opening / closing panel 6. The shift panel 5 and the opening / closing panel 6 are hooked and attached to the hooking walls 90 provided on the frames 10, 20, 11, and 12 via hooks 85. Thus, the upper and lower frames 10, 20, 11, 12 and the hook 85 are fastened and fixed to the shift panel 5 and the opening / closing panel 6.

  A damper 93 is provided in the shift mechanism for buffering the moving operation when the shift panel 5 moves in parallel from the closed position to the retracted position.

  In the present invention, a flat sliding door is configured by using the shift panel 5 and the opening / closing panel 6 as an opening / closing body. The rack block 25, a pair of left and right pinion levers 26, a parallel link mechanism 27, a shift spring 28, and the like constitute a shift mechanism so that the shift panel 5 can be shifted back and forth between the closed position and the retracted position. The shift panel 5 and the open / close panel 6 can be individually opened and closed while the shift panel 5 is translated to the retracted position.

  As described above, when the panels 5 and 6 can be opened / closed while the shift panel 5 is positioned at the position where the shift panel 5 is located outside the opening / closing locus of the opening / closing panel 6, the front opening 2 of the cabinet body 1 can be opened. The position desired by the user can be quickly opened. Further, the left and right positions of the panels 5 and 6 can be freely interchanged, and in the opened state, the panels 5 and 6 can be opened in a state where they are completely overlapped in the front and rear, so that the opened opening width can be increased. Moreover, since the shift panel 5 is translated back and forth, there is no need to provide a large gap between the shift panel 5 and the door panel adjacent to the shift panel 5, and therefore, when the shift panel 5 is closed, the adjacent panel It is possible to prevent the formation of a gap between them, to surely prevent the invasion of pests and dust, and to improve the appearance impression.

  The pinion lever 26, the first link 43, the second link 46, the output lever 45, and the like constitute the parallel link mechanism 27, and the pin 47 that connects the first and second links 43 and 46 to the base 24. If the provided guide body 49 guides and supports the reciprocating slide only, the parallel link mechanism 27 can be configured as a positive mechanism. Therefore, when shifting the shift panel 5 back and forth with the shift mechanism, the shift panel 5 can be prevented from wobbling left and right, and the shift panel 5 can be moved in parallel with no wasteful movement track.

  When the shift panel 5 is moved to the retracted position, the weight moment of the shift panel 5 acts on the output lever 45 protruding forward of the base 24, and the output lever 45 is inclined downward toward the front end. Tend. However, when a part of the output lever 45 is received and supported by the restriction frame 51 provided on the base 24 so as not to be lifted and separated, the output lever 45 is held in an appropriate posture against the previous weight moment, and the parallel link mechanism 27. Can be prevented from being twisted by the weight moment. Therefore, the parallel link mechanism 27 is always operated smoothly, and the shift panel 5 can be appropriately shifted back and forth. Further, since the restriction frame 51 provided on the base 24 and the output lever 45 cooperate to receive the previous weight moment, individual structures such as the levers 26 and 45, the links 43 and 46, and the pins constituting the parallel link mechanism 27 are provided. There is no need to increase the strength. Therefore, the shift mechanism can be manufactured at a lower cost by reducing the size of the parallel link mechanism 27 and reducing the size of the parallel link mechanism 27 at the same time as compared with the case where the load associated with the previous weight moment is handled only by the parallel link mechanism.

  According to the lock mechanism in which the lock claw 54 provided on the shift panel 5 is engaged with the lock engaging portion 55 and the rack block 25 is locked and held at the standby position against the urging force of the shift spring 28. It can be held and fixed in the closed position in a state in which the back and forth movement is restricted. Further, simultaneously with the unlocking operation of the lock pawl 54 with the unlocking body, the rack block 25 can be slid by the spring force of the shift spring 28, and the shift panel 5 can be automatically shifted to the retracted position. Compared to a conventional flat sliding door, the time for switching the posture of the shift panel 5 can be reduced, and the usability of the flat sliding door can be improved.

  A cam mechanism comprising a release tool 65 provided on the front surface of the shift panel 5, a pair of upper and lower release rods 66 and 67 fixed to the lock claw 54, a cam groove 80 for operating both release rods 66 and 67, and a passive pin 77. If the unlocking tool is configured by, for example, the upper and lower lock claws 54 can be simultaneously unlocked, and the shift panel 5 can be shifted to the retracted position. The shift panel 5 can be automatically shifted to the retracted position by simply unlocking the unlocking tool 65, that is, only by one-touch operation. Further, the shift panel 5 can be moved to the closed position by simply returning to the closed position. Since it can be held, the usability of the flat sliding door can be further improved.

  A hook 85 is fixed to a plurality of positions on the inner surface of the shift panel 5 and the opening / closing panel 6 so that both panels 5 and 6 can be hooked onto the hooking walls 90 of the frames 10, 20, 11 and 12 via the hooks 85. According to the sliding door, each panel 5 and 6 and other mechanism members can be assembled separately, so after confirming that the mechanism members are working properly, finally assemble both panels 5 and 6 Well, it is possible to construct a flat sliding door accurately without any assembly errors. The labor required for construction can also be reduced.

  When the shift mechanism 5 is provided with a damper 93 for buffering the moving operation when the shift panel 5 moves in parallel from the closed position to the retracted position, the shift panel 5 is prevented from jumping out rapidly when shifted to the retracted position. And can be shifted slowly. Therefore, it is possible to prevent the shift panel 5 from colliding with the user's hand or head, and to open the shift panel 5 safely.

  Hereinafter, the Example which applied the flat sliding door of this invention to the cabinet for kitchens is described. 2 to 4, the flat sliding door includes guide rails 3, 4 disposed above and below the front opening 2 of the cabinet body 1, and three door panels 5, which are guided to open and close by the guide rails 3, 4. 6 and. The guide rails 3 and 4 are made of an aluminum molded product having a pair of front and rear rail grooves 7 and 8, and the upper guide rail 3 is a top plate of the cabinet body 1 with the rail grooves 7 and 8 opened upward. The lower guide rail 4 is fixed to the bottom plate of the cabinet body 1 with the rail grooves 7 and 8 opened downward.

  Of the three door panels 5 and 6, the center door panel in FIG. 2 is a shift panel 5 that can be shifted back and forth between the closed position and the retracted position. An openable and closable panel 6 is arranged. The vertical and horizontal dimensions and thickness dimensions of the shift panel 5 and the open / close panel 6 are set to be the same, and the front surfaces of the panels 5 and 6 are flush with each other when the panels 5 and 6 are closed.

  As shown in FIG. 5, the upper frame 10 and the lower frame 11 are fixed to the upper and lower surfaces of the opening / closing panel 6, and the vertical frame 12 is fastened and fixed to the opposing surfaces of the upper and lower frames 10 and 11. On the upper and lower frames 10 and 11, mounting walls are formed so as to cover the upper and lower surfaces of the guide rails 3 and 4, and a pair of left and right runners 15 are fixed to each of the mounting walls. The runner 15 includes a horizontally long runner main body 16 and four runner rollers 17 that are pivotally supported on the left and right of the front and rear surfaces of the runner main body 16. The upper and lower runners 15 are guided by the rail grooves 7 and 7 on the front side of the upper and lower guide rails 3 and 4 so as to be movable left and right, whereby the open / close panel 6 can be opened and closed only in the left and right direction.

  As shown in FIG. 6, the upper frame 20 and the lower frame 21 are fixed to the upper and lower surfaces of the shift panel 5, and the vertical frame 22 is fastened and fixed to the opposing surfaces of the upper and lower frames 20 and 21. On the inner surface of the shift panel 5, a runner 15 guided by the rear rail grooves 8, 8 on the rear side of the upper and lower guide rails 3, 4, and a front panel of the open / close panel 6 from the closed position. A shift mechanism that shifts to a different position and a lock mechanism that locks and holds the shift panel 5 in the closed position are provided. The runner 15 that supports the shift panel 5 is formed in the same structure as the runner 15 described above. The upper and lower runners 15 and the shift panel 5 are connected to each other through a pair of upper and lower shift mechanisms so as to move together.

  As shown in FIGS. 1 and 7, the shift mechanism includes a base 24 fixedly supported by a pair of left and right runners 15, a rack block 25 supported slidably forward and backward by the base 24, and a pair of left and right meshing with the rack block 25. The pinion lever 26, a pair of left and right parallel link mechanisms 27 that swing back and forth in conjunction with both pinion levers 26, a shift spring 28 that urges the rack block 25 toward the rear of the base 24, and the like. Reference numeral 30 denotes a cover made of a plastic molded product that covers the upper surface opening of the base 24. The lower shift mechanism is assembled with the upper shift mechanism upside down.

  The base 24 is a die-cast molded product having a horizontally long shell shape that opens upward, and two left and right portions of the bottom wall are fastened and fixed to the runner body 16 with screws 29. The rack block 25 has a pair of left and right rack bodies in which a group of rack teeth 31 are formed on both the left and right sides, and a spring accommodating portion 33 is formed between both rack bodies. The rack block 25 is made of engineering plastic or a die cast product. Rib-shaped slide pieces 34 project from the lower surfaces of the left and right rack bodies. By sliding the slide piece 34 with the guide groove 35 provided on the inner surface of the base 24, the rack block 25 can slide back and forth between the standby position at the front end of the base 24 and the shift position at the rear end of the base 25. . The previous shift spring 28 is accommodated in the spring accommodating portion 33, the front end thereof is latched by the latching claw 36, and the rear end is latched by a screw boss 37 provided on the inner surface rear portion of the base 24.

  The pinion lever 26 is pivotally supported by a swing shaft 40 fixed to the base 24 so as to be able to swing back and forth, and a gear tooth 41 that meshes with the rack tooth 31 on the peripheral edge of the partial arc-shaped lever adjacent to the rack block 25. A group is formed. The front / rear movement of the rack block 25 is converted into a front / rear swinging movement by the left and right pinion levers 26 and is output via a parallel link mechanism 27 provided on the lever wall of the pinion lever 26.

  The parallel link mechanism 27 includes a first link 43 connected to the lever wall of the pinion lever 26 by a pin 42, a triangular output lever 45 connected to a tip end portion of the lever wall by a pin 44, and a first link 43 The second link 46 is connected to the output lever 45. One end of the second link 46 is connected to the first link 43 by a pin 47, and the other end of the second link 46 is connected to the inner end of the output lever 45 by a pin 48. A line connecting the centers of the pins 42, 44, 47, and 48 is a parallelogram. The pinion lever 26, the first link 43, the output lever 45, and the second link 46 are all made of a press-formed product made of a stainless steel plate material.

  A pin 47 that connects the first link 43 and the second link 46 is guided and supported by a guide groove (guide body) 49 provided in the base 24 so that only reciprocation is possible. In this way, by restricting the operation of the pin 47 by the guide groove 49, the displacement direction of the first link 43 when the pinion lever 26 swings back and forth is specified, and the output lever 45 is moved back and forth around the pin 44. Can swing.

  The outer ends of the left and right output levers 45 are connected to the upper frame 20 and the lower frame 21 via pins 50. Therefore, when the rack block 25 slides backward, as shown in FIG. 1, the left and right pinion levers 26 swing forward about the swing shaft 40, and the pair of left and right output levers 45 move forward with the parallel link mechanism 27. The shift panel 5 can be moved in parallel to the sliding position by swinging operation. At this time, the lever wall of the output lever 45 located in the vicinity of the pin 48 is received and supported so as not to be lifted off by a restriction frame 51 provided on the base 24 as shown in FIGS. Therefore, it is possible to well prevent the output lever 45 protruding forward from the base 24 from tilting downward due to the weight moment of the shift panel 5. When the rack block 25 slides forward, the pinion lever 26 and the output lever 45 swing in the opposite direction to the above case as shown in FIG. 11, and can shift the shift panel 5 to the closed position.

  A lock mechanism is provided to lock the shift panel 5 in the closed position against the urging force of the shift spring 28. 8 and 9, the lock mechanism includes a pair of upper and lower lock claws 54 that are slidably guided by upper and lower frames 20 and 21, and locks provided on the left and right of the front edge of the rack block 25 corresponding to the lock claws 54. An engagement portion 55, a lock spring 56 that moves and urges the lock claw 54 in a direction to engage the lock engagement portion 55, and a lock release that unlocks the lock claw 54 against the urging force of the lock spring 56. It consists of ingredients.

  As shown in FIG. 8, the lock claw 54 is formed of a plastic molded product having engaging claw 60 on the left and right ends of the rectangular vertical wall 59 and slide pieces 61 on the left and right ends of the vertical wall 59. At the center of the lower end of the vertical wall 59, a boss 62 for inserting and fixing release rods 66 and 67 described later is formed. The upper and lower lock claws 54 are formed in the same structure. By fitting the slide piece 61 into the guide groove 63 provided in the upper and lower frames 20, 21, the lock claw 54 is an upper (or lower) lock in which the engagement claw 60 engages with the lock engagement portion 55. It is possible to slide up and down between the position (the state shown in FIG. 10) and the lower (or upper) unlocking position (the state shown in FIG. 9) where the engaging claw 60 is separated from the lock engaging portion 55.

  The lock release tool includes a release button (release tool) 65 assembled to the lower front portion of the shift panel 5, a pair of upper and lower release rods 66 and 67 fixed to the upper and lower lock claws 54, and a push-in operation of the release button 65. It consists of a cam mechanism that converts it into motion. In the cabinet disposed at a high place, the release button 65 is disposed near the lower portion of the shift panel 5 that is easily accessible by the user. The cam mechanism includes a pair of upper and lower slide frames 68 fixed to opposing ends of the upper and lower release rods 66 and 67, and a cam frame 70 that connects both slide frames 68. The upper and lower slide frames 68 are formed in the same structure. The lower release rod 67 is formed shorter than the upper release rod 66 because the release button 65 is disposed closer to the lower portion of the shift panel 5.

  The release button 65 is integrally provided with a horizontally-long rectangular operation button 65a and an operation shaft 65b projecting inward of the operation button 65a. The operation button 65a is guided by a guide case 72 embedded in the shift panel 5 so as to be movable in and out, and the operation shaft 65b is guided by a guide plate 73 mounted on the inner surface of the shift panel 5 so as to be slidable back and forth.

  The slide frame 68 is formed of a U-shaped plastic molded product. A boss 75 for inserting and fixing the release rod 66 (67) is formed on the upper end wall (or lower end wall) of the slide frame 68. 76 is overhanging. Passive pins 77 constituting a cam mechanism project from the opposing surfaces of the left and right arm portions of the slide frame 68, and spring receiving projections 78 are formed on the inner surfaces of the end walls connecting the left and right arm portions. The slide frame 68 is guided and supported by the vertical frame 22 so as to be slidable up and down, and the slide piece 76 restricts the movement in the direction of floating away from the vertical frame 22 (forward). By arranging a compression coil-shaped lock spring 56 between spring receiving projections 78 provided on the upper and lower slide frames 68, the upper and lower lock claws 54 can be locked and biased via release rods 66 and 67.

  The cam frame 70 is made of a press-formed product having a U-shaped cross section made of a stainless steel plate material. Cam grooves 80 that engage with the above-described passive pins 77 are formed in a C shape on the upper and lower sides of the side walls facing the left and right. The cam frame 70 moves back and forth within the vertical frame 22 in response to the pushing operation of the release button 65. Therefore, a relief groove 81 that allows the cam frame 70 to move back and forth is formed in the rear wall of the vertical frame 22. The release rods 66 and 67, the cam mechanism, the lock spring 56, and the like constituting the lock mechanism are incorporated in the vertical frame 22.

  On the inner surfaces of the shift panel 5 and the open / close panel 6, hooks 85 are fixed at four positions on the upper left and right and the lower left and right. The hook 85 includes a connecting wall 86 and a fastening seat 87 that are bent in a horizontal L shape. A hooking claw 88 is bent downward on the upper edge of the fastening seat 87. The fastening seats 87 are placed at predetermined positions on the inner surfaces of the shift panel 5 and the open / close panel 6, and screws 85 inserted into the three screw holes provided on the seat wall are screwed into the respective panels 5 and 6 so that the hook 85 is attached to the inner surface of the panel. Fixed.

  Next, an example of the procedure for assembling the panels 5 and 6 will be described. The upper and lower guide rails 3 and 4 on the front surface of the cabinet body 1 are fixed, and six runners 15 are fitted and mounted in the front and rear rail grooves 7 and 8, respectively. Four hooks 85 are fastened to the open / close panel 6 in the manner described above. The upper frame 10, the lower frame 11 and the vertical frame 12 are integrated in advance, and the mounting wall of the upper frame 10 is fastened to the runner 15 mounted in the rail groove 7 on the front side of the guide rail 3. Similarly, the mounting wall of the lower frame 11 is fastened to the runner 15 mounted in the rail groove 7 on the front side of the guide rail 4.

  In the above state, as shown in FIG. 5, the hooking claws 88 of the hooks 85 fixed to the opening / closing panel 6 are hooked and attached to the hooking walls 90 provided on both lower sides of the upper and lower frames 10 and 11 from above. Thus, the open / close panel 6 can be temporarily mounted on the upper and lower frames 10 and 11 and the vertical frame 12. In this state, the open / close panel 6 can be integrated with the upper and lower frames 10 and 11 by fastening the connecting wall 86 to the upper and lower frames 10 and 11 with screws.

  A lock release tool is incorporated in the shift panel 5 in advance, and the four hooks 85 are fastened as described above. The base 24 incorporating the shift mechanism is fastened to the upper and lower runners 15, and the upper and lower frames 20 and 21 are connected to the output lever 45 by pins 50. At this time, the upper frame 20, the lower frame 21 and the vertical frame 22 can be handled as an integrated unit component. Can be assembled.

  In the above state, as shown in FIG. 6, the hooking claws 88 of the hooks 85 fixed to the shift panel 5 are hooked and attached to the hooking walls 90 provided on both lower sides of the upper and lower frames 20 and 21 from above. The shift panel 5 can be temporarily assembled and mounted on the upper and lower frames 20 and 21 and the vertical frame 22. In this state, the shift panel 5 can be integrated with the upper and lower frames 20 and 21 by fastening the connecting wall 86 to the upper and lower frames 20 and 21 with screws.

  4, 10 and 11 show a state where the shift panel 5 is closed and the center shift panel 5 and the left and right open / close panels 6 are flush with each other. In this state, as shown in FIG. 10, the lock claw 54 engages with the lock engagement portion 55, and the rack block 25 is brought into a standby state in front of the base 24 against the pulling force of the shift spring 28. Holds the position. Further, the upper and lower release rods 66 and 67 are moved and urged by the lock spring 56 so as to be separated from each other, and the lock claw 54 and the lock engagement portion 55 are kept engaged.

  When the release button 65 is pushed in from the above state, the cam frame 70 is pushed into the panel. Therefore, the passive pins 77 provided on the upper and lower slide frames 68 are pulled toward each other in the cam groove 80 while resisting the urging force of the lock spring 56, and the upper lock claw 54 is moved downward and the lower lock The claw 54 moves upward and releases the engagement with the lock engaging portion 55. When the lock mechanism is unlocked, the rack block 25 held at the position shown in FIG. 11 is drawn to the shift position behind the base 24 by the shift spring 28. Therefore, the pinion lever 26 is swung around the swing shaft 40 as shown in FIG. 1, and the parallel link mechanism 27 swings forward in conjunction with the pinion lever 26. As a result, the shift panel 5 translates from the closed position to the retracted position. In this way, the shift panel 5 can be automatically shifted to the drag position by a one-touch operation.

  As described above, in the state where the shift panel 5 is advanced and displaced to the pulling position, the shift panel 5 and the locking mechanism are positioned forward of the outline of the opening / closing panel 6 as shown in FIG. 5 can be freely moved over the entire range of the front opening 2 of the cabinet body 1 in the left-right direction, and either one of the left and right open / close panels 6 can be opened to the position previously occupied by the shift panel 5. Furthermore, the open position can be changed by simultaneously moving the left and right open / close panels 6.

  For example, as shown by an imaginary line in FIG. 4, when the shift panel 5 is opened so as to overlap the outer surface of the left opening / closing panel 6, the central portion of the front opening 2 of the cabinet body 1 can be opened. When the right open / close panel 6 is moved to the center in this state, the right end of the front opening 2 can be opened. While the left and right open / close panels 6 and 6 are adjacent to each other, the panels 6 and 6 are moved to the right end of the front opening 2 and the shift panel 5 is moved to the center of the front opening 2 or the right end. When operated, the left end of the front opening 2 can be opened.

  As described above, according to the flat sliding door of the present invention, the left and right positions of the open / close panel 6 and the shift panel 5 can be freely switched by simply moving the shift panel 5 to the reverse position, and the open position can be freely set. Therefore, usability can be greatly improved compared to this type of conventional flat sliding door. In addition, when one of the shift panel 5 and the open / close panel 6 is opened, both the panels 5 and 6 can be completely overlapped with each other to increase the open width. It can be done easily.

  When returning the shift panel 5 to the closed position, the open / close panel 6 is either left or right, right-justified, or left-justified. Next, when the shift panel 5 is moved to the opening position and then the shift panel 5 is pushed into the cabinet body 1, the parallel link mechanism 27 including the output lever 45 is gradually folded. In addition, the rack block 25 is moved to the standby position in front of the base 24 against the shift spring 28 by the pinion lever 26 interlocked with the parallel link mechanism 27. At the same time, the upper and lower lock claws 54 assembled on the shift panel 5 side move closer to the rack block 25.

  When the tip of the engagement claw 60 comes into contact with the lower surface of the front edge of the rack block 25, the upper and lower lock claws 54 are pushed in against the urging force of the lock spring 56, and the engagement claw 60 eventually locks. The rack block 25 is engaged and captured by dropping into the portion 55 and engaging. At this time, the cam frame 70 and the release button 65 are returned. As described above, the shift panel 5 shifted to the retracted position can be returned to the closed position and held at that position simply by pushing the entire panel.

  There may be a slight deviation between the opening position and the position of the shift panel 5 immediately before the shift panel 5 is fitted between the left and right open / close panels 6. In that case, the inclined surfaces (see FIG. 4) formed on the inner surfaces of both sides of the shift panel 5 abut against the peripheral edges of the left and right open / close panels 6, and the shift panel 5 is displaced in a direction that matches the position of the opening position. The Therefore, the opening position and the position of the shift panel 5 do not need to be strictly aligned, and may be approximately aligned in the process of pushing the shift panel 5 in. By returning the shift panel 5 to the closed position as described above, the shift panel 5 and the open / close panel 6 are flush again. In this closed state, the adjacent shift panel 5 and the open / close panel 6 are adjacent to each other with almost no gap, so that intrusion of pests, dusts, and the like can be reliably prevented. The appearance impression can be improved. By preparing multiple types of vertical frames 12 and 22 with different vertical dimensions, the upper and lower frames 10, 11, 20, 21, shift mechanism, etc. can be adapted to the difference in size between the shift panel 5 and the open / close panel 6. Can be used in common.

  13 to 15 show another embodiment of the shift mechanism. In this case, a damper 93 is provided in the shift mechanism so that the movement operation when the shift panel 5 moves in parallel from the closed position to the retracted position can be buffered. Specifically, a damper 93 is provided in the recess of the base 24 adjacent to the guide groove 35 so that the rack block 25 can be moved at a slow speed when the rack block 25 is pulled back by the shift spring 28. The damper 93 is a commercially available oil damper in which oil and a return spring are enclosed in a case 94, and a buffer rod 95 projects from one end thereof.

  When the shift panel 5 is in the closed position, the protruding end of the buffer rod 95 is positioned in the vicinity of the engaging claw 60 that engages with the lock engaging portion 55 as shown in FIG. Therefore, as soon as the engagement state between the engagement claw 60 and the lock engagement portion 55 is released and the rack block 25 starts to move toward the rear of the base 24, the lock engagement portion 55 immediately moves to the buffer rod 95. Touch the tip. Therefore, the rack block 25 can only move slowly, and the shift panel 5 can be moved slowly to the shift position in synchronization with the moving speed of the rack block 25. In addition, the damper 93 can apply an air damper other than an oil damper. Further, the damper 93 can be used between the pin 47 slidably guided by the guide groove 49 and the base 24 so as to receive the pin 47 at the protruding end of the buffer rod 95. In short, it is only necessary that the damper 93 is disposed in the operating portion of the shift mechanism.

  In the above embodiment, a single sliding panel 5 and left and right open / close panels 6 constitute a flat sliding door, but this is not necessary. It is sufficient that at least one shift panel 5 and one open / close panel 6 are provided. Moreover, a flat sliding door can also be comprised with the some shift panel 5 and one or more opening-and-closing panels. The flat sliding door of the present invention can also be applied to a cabinet below the sink or furniture.

  In addition to the above-described embodiment, the guide body 49 does not need to be a groove, and can be configured by a rib or a protrusion that sandwiches the pin 47 back and forth. The shift mechanism and the lock claw 54 may be provided on either the upper or lower side of the shift panel 5. The release tool 65 does not have to be a push button structure, and can be changed to a slide knob or a lever.

It is a top view of a shift mechanism. It is an external appearance perspective view of a cabinet. It is a front view of a flat sliding door. It is a top view of a flat sliding door. It is a front view which shows the support structure of an opening-and-closing panel. It is a front view which shows the support structure of a shift panel. It is a disassembled perspective view of a shift mechanism. It is a disassembled perspective view of a locking mechanism. It is the sectional view on the AA line in FIG. 3 of the state which shifted the shift panel. It is the sectional view on the AA line in FIG. 3 of the state which closed and moved the shift panel. It is a top view of the shift mechanism in a closed state. It is a vertical side view which shows the support structure of an output lever. It is a top view which shows another Example of a shift mechanism. It is a top view in the state where the shift mechanism shifted. It is the BB sectional view taken on the line in FIG.

Explanation of symbols

1 Cabinet body 2 Front opening 3 Guide rail 4 Guide rail 5 Shift panel 6 Open / close panel 7 Rail groove 8 Rail groove 15 Runner 24 Base 25 Rack block 26 Pinion lever 27 Parallel link mechanism 28 Shift spring 45 Output lever

Claims (7)

A flat sliding door comprising an open / close panel (6) that can be opened and closed only in the left and right direction, and a shift panel (5) that can be opened and closed in the left and right direction and forward and backward.
The shift panel (5) is provided with a shift mechanism for shifting the shift panel (5) back and forth, and a lock mechanism for locking and holding the shift panel (5) in the closed position.
The shift mechanism is engaged with the rack block (25) engaged with the base (24) fixedly supported by the runner (15), the rack block (25) supported slidably forward and backward by the base (24), and the rack block (25). ) A pair of left and right pinion levers (26) for converting the back-and-forth slide motion into back-and-forth swing, a parallel link mechanism (27) swinging back and forth in conjunction with both pinion levers (26), and a rack block (25). A shift spring (28) that urges and moves toward the rear of the base,
The shift panel (5) is connected to the output lever (45) of the pair of left and right parallel link mechanisms (27), and the shift panel (5) can be translated back and forth between the closed position and the retracted position. Flat sliding door. The parallel link mechanism (27) includes a pinion lever (26), a first link (43) and an output lever (45) coupled to the pinion lever (26), a first link (43), and an output lever (45). And a second link (46) for connecting
The pin (47) for connecting the first link (43) and the second link (46) is guided and supported by a guide body (49) provided on the base (24) so that only reciprocating sliding is possible. Flat sliding door.   A part of the output lever (45) is received and supported by a restriction frame (51) provided on the base (24) so that it cannot be lifted off in a state where the shift panel (5) is moved to the retracted position. The flat sliding door according to 1 or 2. The lock mechanism includes a lock claw (54) provided on the shift panel (5) side, a lock engagement portion (55) provided on the rack block (25) corresponding to the lock claw (54), and a lock claw ( 54) and a lock spring (56) that moves and urges the lock engaging portion (55) in a direction to engage the lock engaging portion (55), and a lock that unlocks the lock claw (54) against the urging force of the lock spring (56). Including a release tool,
In the locked state in which the lock claw (54) and the lock engaging portion (55) are engaged, the rack block (25) is held at the standby position in front of the base against the biasing force of the shift spring (28). And
In the unlocked state in which the engagement between the lock claw (54) and the lock engagement portion (55) is released, the rack block (25) is moved to the shift position behind the base by the shift spring (28), and the shift is performed. The flat sliding door according to claim 1, 2 or 3, wherein the panel (5) can be displaced to a sliding position.   The lock release tool of the lock mechanism includes a release tool (65) assembled to the front surface of the shift panel (5), a pair of upper and lower release rods (66, 67) connected to the lock claw (54), and a release tool (65 ) And the release rod (66, 67), and receives the lock release operation of the release tool (65) to pull the release rods (66, 67) toward each other in a cam groove (80). ) And a passive pin (77). The upper frame (10/20) and the lower frame (11/12) are fixedly supported by the upper and lower runners (15), and both frames (10/20/11/12) are interposed through the vertical frames (12/22). Are connected,
Hooks (85) are fixed to a plurality of locations on the inner surface of the shift panel (5) and the open / close panel (6),
The shift panel (5) and the open / close panel (6) are hooked and attached to the hooking wall (90) provided on the frame (10, 20, 11, 12) via the hook (85),
The flat sliding door according to claim 4 or 5, wherein the frame (10, 20, 11, 12) and the hook (85) are fastened and fixed to the shift panel (5) and the open / close panel (6).   The flat sliding door according to any one of claims 1 to 6, wherein a damper (93) for buffering a moving operation when the shift panel (5) moves in parallel from the closed position to the retracted position is provided in the shift mechanism.

Images