JP4082366B2 - Interlocking sliding door - Google Patents

Description

  The present invention is an interlocking open / close type sliding door that can be slid in conjunction with an intermediate sliding door between the front sliding door or the rear sliding door by a sliding operation of the front sliding door or the rear sliding door, which is arranged at the opening of various cabinets such as a storage. It is about.

  In various cabinets such as storage, the number of sliding doors to be arranged in the opening is increased from the two on the left and right, and the front sliding door and the rear sliding door and the intermediate sliding door between the front and rear sliding doors are connected via a link mechanism, There is known an interlocking open / close type sliding door that can be formed to have a larger opening width than the sliding door structure of two left and right, which allows the intermediate sliding door to be slid in conjunction with the sliding operation of the front sliding door or the rear sliding door. In addition, as the link mechanism of the interlocking open / close type sliding door, two link bars are arranged in an X shape, the intersection area is supported by the intermediate sliding door, and the end of each link bar is supported on the front and rear sliding door side. A long link bar extending between the front and rear sliding doors, and an intermediate portion of the long link bar supported by the intermediate sliding door, and one of the front and rear sliding doors from the supported portion. In general, a configuration using a single short link bar extending between the two (a bracing type) or the like is used.

Further, in the interlocking open / close type sliding door using the X-type or bracing type link mechanism, for example, when a transparent glass window is provided in the sliding door, the link bar constituting the link mechanism can be seen from the glass window, etc. In order to solve the problem, the link mechanism of the interlocking open / close type sliding door is provided with a pair of link bars each having one end side connected to be relatively rotatable and having substantially the same length, and the intermediate sliding door and the pair of paired A guide that guides the connecting portion side of the link bar in the vertical direction, and an end connecting portion that is provided on the front and rear sliding door and rotatably supports the other end side of the link bar at the same position ( For example, see Patent Document 1.).
JP 2000-282755 A (FIGS. 1-5 and 11)

  The configuration of the interlocking open / close sliding door of Patent Document 1 substantially eliminates the problems of the interlocking open / close sliding door using the X-type or bracing type link mechanism, and is transparent or translucent, such as the transparent glass window. When the sliding door is provided with a window portion through which the internal contents can be visually recognized from the outside, it is possible to make it difficult to see the link bar constituting the link mechanism of the sliding door from the outside, and to connect the end portions of the link bar. There are effects such as reduction in the number of formed portions and a sliding operation with a light touch. However, even in such a configuration, since the link bar moves in a substantially vertical plane on the back side of the sliding door, the size of the window portion is limited (see FIG. 11 of Patent Document 1). For example, in a configuration in which the visibility of the contents in the cabinet is further increased, such as a configuration in which the window portion is provided over substantially the entire surface excluding the upper and lower portions of the sliding door, the link bar is visually recognized from the outside and the appearance of the appearance is impaired. There is a problem that it will be.

  The present invention has been made in order to solve the above-described problems, and is provided with a transparent or translucent window portion on the substantially entire surface excluding the upper and lower portions of the sliding door that allows the internal contents to be visually recognized from the outside. Even in a configuration that further increases the visibility of the contents in the cabinet, such as the configuration, the link bar constituting the link mechanism of the sliding door can be hardly seen from the outside, and the appearance on the appearance is impaired. The object is to obtain an interlocking sliding door that can be prevented.

  In order to solve the above problems, the interlocking open / close type sliding door according to the present invention is provided in the left and right direction along the front rail, the rear rail, and the intermediate rail between the front and rear rails, which are individual three-row rails, at the opening of the cabinet. A front sliding door, a rear sliding door, and an intermediate sliding door, which are movably disposed in the left and right, a guide member erected on the left and right at the rear upper part or lower rear part of the storage space of the cabinet, and engaged with the guide member in the left-right direction. A center link having a rear end engaging portion supported so as to be slidable and a front end fixing portion fixed to an upper portion or a lower portion of the rear surface of the intermediate sliding door and extending substantially horizontally in the front-rear direction, along the center link A front and rear moving member supported so as to be slidable in the front and rear direction, and one end pivotally attached to the front and rear moving member, and the other end pivotally attached to one rear surface of the front sliding door and the rear sliding door. The first link bar that moves in a substantially horizontal plane, and one end pivotally attached to the front and rear moving member, and the other end pivotally attached to the other rear surface of the front sliding door and the rear sliding door, And a pair of link bars each including a second link bar moving in a horizontal plane.

  Here, the pair of link bars have substantially the same length and are arranged substantially symmetrically with respect to the center link, and two first auxiliary links having substantially the same length. One end of a pair of auxiliary link bars comprising a bar and a second auxiliary link bar is pivotally supported, and the pivot is supported on the front side of the front-rear moving member so as to be slidable in the front-rear direction along the center link. It is preferable that the other ends of the pair of auxiliary link bars are pivotally attached to intermediate portions of the first link bar and the second link bar, respectively.

  Further, the guide member is a left-right rail provided with an upper extension portion extending in the left-right direction and extending in the left-right direction at a rear upper portion or a rear lower portion of the storage space of the cabinet and extending a front edge portion upward. A plurality of rollers that rotate around a horizontal axis in the front-rear direction disposed on the left and right sides of the rearwardly extending portion of the left-right rail, and A support plate that supports and has a surface facing the upper extending portion disposed on the front side of the upper extending portion of the left-right rail, and a rear end engaging portion and a front end fixing portion of the center link. A longitudinal rail portion having a U-shaped cross-section with the left and right side edges extending upward is provided therebetween, and the longitudinal slide support along the center link of the longitudinal movement member is the lower surface of the longitudinal movement member. Multiple attached before and after Preferably the roller is intended to engage on the longitudinal direction the rail portion of the center link.

  Furthermore, a pair of auxiliary link bars are provided between the rear end engaging portion and the front end fixing portion of the center link, by providing a front-rear direction rail portion having a U-shaped cross section with the left and right side edges extending upward. It is preferable that the slide support in the front-rear direction along the center link of the pivot shaft engages the roller mounted on the lower portion of the pivot shaft on the rail portion in the front-rear direction of the center link.

  Furthermore, the guide member has a left-right rail provided with an upper extension portion extending in the left-right direction and extending in the left-right direction at a rear upper part or a lower rear part of the cabinet storage space. And a rear end engaging portion of the center link supports a plurality of rollers that rotate around a vertical axis disposed on the left and right sides of the upper extension portion of the left-right rail and the rollers. It is a support plate, and the front / rear moving member is a U-shaped front / rear direction rail part with a left / right side edge extending upward between a rear end engaging part and a front end fixing part of the center link. A roller that rotates about the vertical axis to be engaged is preferable.

  According to the interlocking open / close type sliding door according to the present invention, the opening of the cabinet is arranged to be movable in the left-right direction along the front rail, the rear rail, and the intermediate rail between the front and rear rails, which are individual three-row rails. The front sliding door, the rear sliding door, and the intermediate sliding door, the guide member installed on the left and right in the upper rear part or lower rear part of the storage space of the cabinet, and the slide member is supported so as to be slidable in the left and right direction by engaging with the guide member. And a center link extending substantially horizontally in the front-rear direction, and sliding in the front-rear direction along the center link. A front and rear moving member supported in a possible manner, and one end pivotally attached to the front and rear moving member, and the other end pivotally attached to one rear surface of the front sliding door and the rear sliding door. A first link bar that moves and a first end that is pivotally attached to the front and rear moving member, and a second end that is pivotally attached to the other rear face of the front sliding door and the rear sliding door. And a pair of link bars made up of two link bars, so that a cabinet that has a transparent or semi-transparent window part that allows the internal contents to be visually recognized from the outside, except for the upper and lower parts of the sliding door, is provided. Even in the configuration that further increases the visibility of the contained items, the link bar constituting the link mechanism of the sliding door can be hardly seen from the outside, and the appearance appearance can be prevented from being impaired. it can. In addition, a rear end engaging portion is provided at the rear portion of the center link, and this rear end engaging portion is engaged with the guide member, so that the moment around the vertical axis acting on the intermediate sliding door is suppressed by this engagement. Therefore, the opening / closing operation of the interlocking open / close type sliding door can be performed smoothly and reliably.

  Moreover, according to the interlocking opening / closing type sliding door according to the present invention, the pair of link bars have substantially the same length and are arranged substantially symmetrically with respect to the center link. One end of a pair of auxiliary link bars including a first auxiliary link bar and a second auxiliary link bar having the same length is pivotally supported, and the pivot is connected to the front side of the front-rear moving member. And the other ends of the pair of auxiliary link bars are pivotally attached to the intermediate portions of the first link bar and the second link bar, respectively. The moment about the working vertical axis can be suppressed, and the forward / backward movement operation of the longitudinal movement member along the center link can be made smooth. Therefore, the opening / closing operation of the interlocking open / close sliding door can be performed more smoothly and reliably.

  Furthermore, according to the interlocking opening / closing type sliding door according to the present invention, the guide member is installed in the left and right direction at the upper rear portion or the lower rear portion of the storage space of the cabinet, and the front edge portion extends in the left-right direction. It is a left-right rail provided with an extending portion extending upward, and a rear end engaging portion of the center link is arranged around a horizontal axis in the front-rear direction disposed on the left and right sides of the upper extending portion of the left-right rail. A support plate having a plurality of rollers that rotate and a surface that supports the rollers and faces the upper extension portion disposed on the front side of the upper extension portion of the left-right rail, the center link Between the rear end engaging portion and the front end fixing portion, there is provided a front-rear direction rail portion having a U-shaped cross section with the left and right side edges extending upward, and the front and rear portions along the center link of the front and rear moving member Direction slide support, said Since a plurality of rollers mounted on the front and rear of the lower surface of the rear moving member are engaged with the front-rear direction rail portion of the center link, the simplification of the configuration improves the reliability and reduces the cost. be able to.

  Furthermore, according to the interlocking open / close type sliding door according to the present invention, the left and right side edges are extended upward between the rear end engaging portion and the front end fixing portion of the center link. A longitudinal rail portion is provided, and a sliding support in the longitudinal direction along the center link of the pivot of the pair of auxiliary link bars engages a roller mounted on the lower portion of the pivot on the longitudinal rail portion of the center link. Therefore, the simplification of the configuration can improve the reliability and reduce the cost.

  Moreover, according to the interlocking open / close type sliding door according to the present invention, the guide member is installed in the left-right direction at the rear upper part or the rear lower part of the storage space of the cabinet, and the front edge part extends in the left-right direction. A left-right rail provided with an extending portion extending upward, and a rear end engaging portion of the center link is rotated about a vertical axis disposed on the left and right sides of the upper extending portion of the left-right rail. A plurality of rollers that move, and a support plate that supports the rollers, and the front and rear moving member extends left and right side edges upward between a rear end engaging portion and a front end fixing portion of the center link. Since the roller rotates around the vertical axis engaged with the longitudinal rail portion having a U-shaped cross section, the reliability can be further improved and the cost can be further reduced by further simplifying the configuration.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and all the embodiments that satisfy the requirements described in the claims are described. Is included. In this specification, as viewed from the front side (opening side) of the cabinet, the front side (opening side) is front, the opposite side (back side of the cabinet) is rear, and the front side (opening portion) of the cabinet. The left and right sides as viewed from the side) are the left and right respectively.

Embodiment 1 FIG.
1 to 3 are a perspective view, a plan sectional view, and a right side sectional view of a cabinet in which the interlocking open / close sliding door according to Embodiment 1 of the present invention is used. FIG. 4 is a configuration explanatory view of a link mechanism that connects the front / rear sliding door and the intermediate sliding door in the interlocking open / close sliding door according to the first embodiment of the present invention. 5 is a plan sectional view showing a state where the interlocking open / close sliding door according to Embodiment 1 of the present invention is opened, and FIG. 5 (a) is a diagram showing a state where the interlocking open / close sliding door is moved to the left. 5 (b) shows a state in which the interlocking open / close sliding door is moved to the right. 1 shows a state in which the interlocking open / close type sliding door is opened, and FIGS. 2 and 3 show a state in which the interlocking open / close type sliding door is closed.

  The cabinet 1 includes an opening 2a on the front side (front side), a rectangular base 3 in a plan view, a left side plate 4 and a right side plate 5 in a side view rectangular disposed on the left and right sides of the base 3, and the base 3 And a back plate 6 having a rectangular shape in front view (rear view) disposed at the rear ends of the side plates 4 and 5, and a top plate 7 having a rectangular shape in plan view disposed at the upper ends of the side plates 4, 5 and the back plate 6. The upper and lower rails of the opening 2a, that is, the three horizontal rails formed on the lower surface of the top plate 7, the front rail 8a, the rear rail 9a, and the intermediate rail between the front and rear rails 10a, and three separate rails in the left and right direction formed on the upper surface of the base 3, the front rail 8b, the rear rail 9b, and the intermediate rail 10b between the front and rear rails, and arranged to be movable in the left and right directions. Along the front rail Sliding door 11, the intermediate sliding door 13 along the sliding door 12 and the intermediate rail after along the rear rail is constituted by a disposed a keybed 14, 14 or the like into the accommodation space 2b in the cabinet body 2.

  The three sliding doors 11, 12, and 13 are configured to be slidable in the left-right direction without interfering with each other along the individual left-right rails 8a, 8b, 9a, 9b and 10a, 10b. Further, the intermediate sliding door 13 is configured to slide in conjunction with the sliding operation of the left and right front sliding doors 11 or the rear sliding door 12 by a link mechanism described later.

  Each of the sliding doors 11, 12 and 13 has upper and lower metal parts 11a, 11b, 12a, 12b and 13a, 13b formed by, for example, forming a steel plate material by sheet metal processing, and upper and lower parts between the metal parts. Fitted glass part (this glass part is transparent or translucent and constitutes a window part from which the internal contents can be visually recognized from the outside. Note that the internal contents can be visually recognized from the outside by being transparent or translucent. If it has a function, it may not be glass.) It is comprised by 11c, 12c, and 13c. Thus, the sliding doors 11, 12 and 13 have the entire glass portion except for the upper and lower metal portions 11a, 11b, 12a, 12b and 13a, 13b, and the visibility of the contents in the cabinet is very high. It has a high configuration.

  The left-right rail 15 which is a guide member installed on the left and right on the rear upper part of the storage space 2b of the cabinet 1 is fixed to, for example, the left and right side plates 4, 5, the back plate 6, the top plate 7, etc. An upward extending portion 15a extending in the left-right direction with the portion extending upward is formed. The front end fixing portion 17 of the center link 16 extending substantially horizontally in the front-rear direction is fixed to the upper right portion of the rear metal portion 13a of the intermediate sliding door 13 by spot welding, for example, and the rear end engaging portion 18 is Rollers 19, 19 that rotate around a horizontal axis in the front-rear direction disposed on the left and right sides of the upper extension portion 15 a of the directional rail 15, support the rollers 19, 19, and The support plate 20 includes a surface 20a facing the upper extension 15a disposed on the front side of the upper extension 15a.

  Therefore, the center link 16 is supported so as to be movable in the left-right direction when the rear engaging portion 18 is engaged with the rail 15 in the left-right direction. Further, the rail 15 in the left-right direction, the plurality of rollers 19 and 19 disposed so as to sandwich the upper extension portion 15a of the rail 15, and the surface 20a that supports the roller and faces the upper extension portion 15a. Since the center link 16 is guided by the support plate 20 having the right and left directions, the movement of the center link 16 in the left and right directions can be surely performed with a simple configuration, and the cost can be reduced. Can be achieved. The rollers 19 are not necessarily provided at the rear end engaging portion of the center link 16 that engages with the left-right rail 15, and the center link 16 is moved left and right by sliding resin parts on the left-right rail 15. A configuration that slides in the direction may be employed. If such a configuration is adopted, the cost can be further reduced.

Between the front end fixing portion 17 and the rear end engaging portion 18 of the center link 16, a front-rear direction rail portion 21 having a U-shaped cross section is provided by extending left and right side edge portions 21 a and 21 a upward. The front and rear moving member 22 is supported so as to be movable along the center link 16 by engaging the rollers 23 to 25 mounted on the front and rear of the lower surface of the front and rear moving member 22 with the front and rear direction rail portion 21. Is done. The front and rear direction rail portion 21 can be formed by sheet metal processing, for example, and a plurality of rollers 23 to 25 attached to the front and rear of the lower surface of the front and rear moving member 22 are engaged with the rail portion 21 having a U-shaped cross section. As a result, the longitudinal movement support along the center link 16 of the forward / backward moving member 22 is performed, so that the forward / backward movement guide along the center link 16 of the forward / backward moving member 22 is ensured with a simple configuration. The cost can be reduced.
The rollers 23 to 25 are not necessarily provided on the lower surface of the front / rear moving member 22, and the resin parts attached to the lower surface of the front / rear moving member 22 are slid on the U-shaped front / rear direction rail portion 21 of the center link 16. A configuration in which the longitudinal movement member 22 is slid in the longitudinal direction along the longitudinal rail portion 21 may be employed. If such a configuration is adopted, the cost can be further reduced.

  The first link bar 26 and the second link bar 27 have substantially the same length and are arranged substantially symmetrically with respect to the center link 16, and move in a substantially horizontal plane. One end of the first link bar 26 is pivotally attached to the forward / backward moving member 22 (pivot 26a), and the other end of the first link bar 26 is attached to the upper metal portion of the front sliding door 11 by, for example, spot welding. By being fixed to the upper right part of the rear surface of 11a, it is pivotally attached to the rear surface of the front sliding door 11 so as to be rotatable around the vertical axis (the pivot 26b). Similarly, one end of the second link bar 27 is pivotally attached to the longitudinal movement member 22 (pivot axis 27a), and the other end of the second link bar 27 is attached to the rear sliding door by, for example, spot welding. 12 is fixed to the upper right part of the rear surface of the upper metal portion 12a, and is pivotally attached to the rear surface of the rear sliding door 12 so as to be rotatable about the vertical axis (the pivot shaft 27b).

  The first auxiliary link bar 30 and the second auxiliary link bar 31 have substantially the same length, are arranged substantially symmetrically with respect to the center link 16, and move in a substantially horizontal plane. One ends of the first auxiliary link bar 30 and the second auxiliary link bar 31 are pivotally supported so as to be rotatable around a vertical axis, and the pivot 32 is connected to the center link by the center link 16 on the front side of the front-rear moving member 22. It is supported so that it can slide along the front-back direction. That is, by engaging the roller 33 attached to the lower portion of the pivot 32 with the longitudinal rail portion 21 having a U-shaped cross section of the center link 16, the pivot 32 is slid in the longitudinal direction along the center link 16. Yes. The other ends of the first auxiliary link bar 30 and the second auxiliary link bar 31 are pivotally attached to intermediate portions of the first link bar 26 and the second link bar 27, respectively (the pivots 34 and 35). ).

  In this way, the guide of the movement in the front-rear direction along the center link 16 of the pivot 32 of the pair of auxiliary link bars 30 and 31 causes the roller 33 mounted on the lower portion of the pivot 32 to move back and forth in the U-shaped cross section of the center link 16. Since it is made by engaging with the direction rail part 21, while being a simple structure, the said movement guide can be performed reliably and cost reduction can be aimed at. The roller 33 is not necessarily attached to the lower portion of the pivot 32, and a configuration in which a resin component is attached to the lower portion of the pivot 32 and the resin component is slid along the longitudinal rail 21 may be employed. . If such a configuration is adopted, the cost can be further reduced.

  Next, the operation of the interlocking open / close sliding door according to Embodiment 1 of the present invention will be described. When the handle 36 is moved to the left in the state where the interlocking open / close type sliding door of FIG. 2 is closed, the locked state of a latch mechanism described later is released, and the front sliding door 11 moves to the left. With the movement of the front sliding door 11, the first link bar 26 moves the front / rear moving member 22 rearward along the center link 16, and a driving force to the left acts on the center link 16. Therefore, the intermediate sliding door 13 fixed to the front end fixing portion 17 of the center link 16 moves to the left in conjunction with the movement of the front sliding door 11 to the left, and the rear sliding door 12 as shown in FIG. The entire sliding door can be moved to the left until the front sliding door 11 and the intermediate sliding door 13 substantially overlap each other.

  Similarly, when the handle 37 is moved to the right in the state where the interlocking open / close type sliding door of FIG. 2 is closed, the locked state of a latch mechanism to be described later is released, and the rear sliding door 12 moves to the right. As the rear sliding door 12 moves, the second link bar 27 causes the front / rear moving member 22 to move rearward along the center link 16 and a driving force to the right acts on the center link 16. Accordingly, the intermediate sliding door 13 fixed to the front end fixing portion 17 of the center link 16 moves to the right in conjunction with the movement of the rear sliding door 12 to the right, and the front sliding door 11 as shown in FIG. The entire sliding door can be moved rightward until the rear sliding door 12 and the intermediate sliding door 13 substantially overlap each other.

  As described above, the intermediate sliding door 13 is also interlocked by the sliding operation of the front sliding door 11 or the rear sliding door 12, but the moment about the vertical axis acts on the intermediate sliding door 13 by the lateral driving force acting on the center link 16, There is a possibility that the movement in the left-right direction of the intermediate sliding door 13 along 10a and 10b may not be performed smoothly. Therefore, a rear end engaging portion 18 is provided at the rear portion of the center link 16, and the rear end engaging portion 18 is engaged with the left-right rail 15 serving as the guide member. This suppresses the moment around the vertical axis acting on the. Further, one end of each of the first link bar 26 and the first link bar 27 is pivotally supported at an intermediate portion of the pair of link bars so as to be rotatable around a vertical axis, and the pivot 32 is moved back and forth. The other ends of the pair of auxiliary link bars 30 and 31 supported by the center link 16 so as to be slidable in the front-rear direction along the center link are pivotally mounted on the front side of the member 22 (pivots 34 and 35). The moment about the vertical axis acting on the intermediate sliding door 13 can be suppressed, and the front-rear moving member 22 along the center link 16 can be smoothly moved back and forth. Therefore, with such a configuration, the opening / closing operation of the interlocking open / close sliding door according to Embodiment 1 of the present invention can be performed smoothly and reliably.

  In addition, the pair of link bars 26 and 27 and the pair of auxiliary link bars 30 and 31 which are the link mechanism of the interlocking open / close type sliding door of the present invention move in a substantially horizontal plane above the storage space 2b of the cabinet 1. Therefore, in a configuration that further enhances the visibility of the contents in the cabinet 1, such as a structure in which a window portion that is transparent or translucent and from which the internal contents can be visually recognized is provided over substantially the entire surface excluding the upper and lower portions of the sliding door. However, the sliding door link mechanism can be hardly seen from the outside, and the appearance can be prevented from being damaged.

  In the above description, the configuration in which the left and right rails 15, the center link 16, the pair of link bars 26 and 27, and the pair of auxiliary link bars 30 and 31 are disposed above the storage space 2b of the cabinet 1 has been described. These may be arranged in the lower part of the storage space 2b of the cabinet 1. In the case of such a configuration, the left and right rails 15 are installed to the left and right in the lower rear part of the storage space 2 b of the cabinet 1, and the front end fixing part 17 of the center link 16 is attached to the lower right part of the rear metal part 13 b of the intermediate sliding door 13. The fixing plate 28 that fixes and pivotally supports the first link bar 26 is fixed to the lower right part of the rear surface of the lower metal portion 11 b of the front sliding door 11, and the fixing plate 29 that pivotally supports the second link bar 27 is fixed to the rear sliding door 12. What is necessary is just to fix to the lower right part of the rear surface of the lower metal part 12b.

  As described above, it is preferable that the pair of link bars 26 and 27 and the pair of auxiliary link bars 30 and 31 in the present invention are disposed substantially symmetrically with respect to the center link 16, respectively. With such a configuration, the sliding operation of the sliding door can be performed more easily, and the link bar components can be shared, and the manufacturing cost can be reduced.

  FIG. 6 is a plan sectional view for explaining the latch mechanism, FIG. 6 (a) shows a locked state, and FIG. 6 (b) shows an operation for releasing the lock of the latch mechanism. The left latch mechanism will be described below, but the right latch mechanism (the handle 36 and the like) has the same configuration. The latch main body 38 of the left latch mechanism includes a hook-like engagement piece 39 supported so as to be rotatable around a vertical shaft 39a, and a spring that elastically biases the engagement portion 39b of the hook-like engagement piece 39 rearward. 40 and an operating means for releasing the locked state of the latch mechanism and an operating portion for opening and closing the sliding door, and is constituted by a handle 37 supported so as to be rotatable around the vertical shaft 37a. The rear sliding door 12 is mounted on the lower metal portion 12b. The left side plate 4 is mounted with a fixed side hook-shaped engagement piece 41 having an engagement portion 41 a that engages with the engagement portion 39 b of the hook-like engagement piece 39.

  6A, the engagement portion 39b of the hook-shaped engagement piece 39 of the latch body 38 and the engagement portion 41a of the fixed-side hook-shaped engagement piece 41 are engaged, and the spring Since the elastic urging force acts on the hook-shaped engagement piece 39 by 40, the sliding door is configured not to be opened unexpectedly due to a cabinet movement or an earthquake. When the handle 37 is moved rightward from the locked state of FIG. 6A, the handle 37 rotates around the vertical axis 37a and the contact portion 37b of the handle 37 pushes the hook-shaped engagement piece 39, The engagement piece 39 resists the elastic urging force of the spring 40 in a direction in which the engagement portion 39b and the engagement portion 41a of the stationary hook-like engagement piece 41 are disengaged (FIG. 6B). (Refer to the arrow A in the middle.), And rotate around the vertical axis 39a. Therefore, by moving the handle 37 to the right, the locked state of the latch mechanism can be easily released, and the rear sliding door 12 can be moved to the right.

  As described above, the hook-like engagement piece 39 and the handle 37 of the latch main body 38 are separate parts, and the positions of the rotation shafts 39a and 37a are also separated from each other. That is, the contact portion 37b of the handle 37 is larger than the distance from the position where the contact portion 37b of the handle 37 presses the hook-shaped engagement piece 39 to the vertical shaft 39a that is the center of rotation of the hook-shaped engagement piece 39. The distance from the position where the hook-shaped engagement piece 39 is pressed to the vertical shaft 37a which is the center of rotation of the handle 37 is increased. With such a configuration, the rotation angle of the handle 37 can be made smaller than the rotation angle of the hook-shaped engagement piece 39. Therefore, for example, an operation of closing the sliding door 12 to the left side while holding the handle 37 is performed, and the engaging portion 39b of the hook-like engagement piece 39 of the latch body 38 gets over the engaging portion 41a of the fixed hook-like engagement piece 41. Even when the hook-like engagement piece 39 rotates around the vertical axis 39a, the reaction of the handle 37 to the operator can be suppressed, and the operation can be performed more smoothly.

  FIG. 7 is an explanatory front view of the locking device. When the interlocking open / close type sliding door (front sliding door 11, rear sliding door 12, and intermediate sliding door 13) is closed, a key (not shown) is inserted into the key cylinder 42 provided on the lower metal portion 12b of the rear sliding door 12 and rotated. The latch 43 is lifted (see arrow B in the figure), and the first lock rod 44 supported so as to be rotatable around the horizontal axis 44a in the front-rear direction on the rear surface side of the lower metal portion 12b of the rear sliding door 12 is It rotates around a horizontal axis 44a (see arrow C in the figure). A first locking body 45 is fixed to the rear surface side of the lower metal portion 13b of the intermediate sliding door 13, and a concave locking portion 45a is formed on the first locking body 45. By rotating the first lock rod 44, the tip engagement piece 44b of the first lock rod 44 is locked to the concave locking portion 45a of the first locking body 45 (in the drawing). The relative movement in the left-right direction between the rear sliding door 12 and the intermediate sliding door 13 is restricted.

  By rotating the first lock rod 44, the front end engaging piece 44b of the first lock rod 44 can be rotated around the horizontal axis 46a in the front-rear direction on the rear surface side of the lower metal portion 13b of the intermediate sliding door 13. The second lock rod 46 supported by the rotary shaft 46 is rotated around the horizontal shaft 46a (see arrow E in the figure). A second locking body 47 is fixed to the rear surface side of the lower metal portion 11 b of the front sliding door 11, and a concave locking portion 47 a is formed on the second locking body 47. By rotating the second lock rod 46, the tip engagement piece 46b of the second lock rod 46 is engaged with the concave engagement portion 47a of the second engagement body 47 (arrow in the figure). E.), the relative movement of the intermediate sliding door 13 and the front sliding door 11 in the left-right direction is restricted. Thus, the interlocking open / close type sliding doors (the front sliding door 11, the rear sliding door 12, and the intermediate sliding door 13) can be easily and reliably locked together by inserting and rotating a key (not shown) into the key cylinder 42. It can be done.

Embodiment 2. FIG.
8 and 9 are a plan sectional view and a right sectional side view of a cabinet in which the interlocking open / close sliding door according to Embodiment 2 of the present invention is used. FIG. 10 is a configuration explanatory diagram of a link mechanism that connects the front / rear sliding door and the intermediate sliding door in the interlocking open / close sliding door according to the second embodiment of the present invention. In addition, the same code | symbol as FIGS. 1-3 of Embodiment 1 has shown the same or equivalent part.

  The left and right rails 48, which are guide members installed on the left and right in the upper rear part of the storage space 2b of the cabinet 1, are fixed to, for example, the left and right side plates 4 and 5, the back plate 6 or the top plate 7 and the front edge thereof. An upward extending portion 48a extending in the left-right direction with the portion extending upward, and a backward extending portion 48b extending rearward from the upper end of the upward extending portion 48a are formed. A front end fixing part 50 of the center link 49 extending substantially horizontally in the front-rear direction is fixed to a front end part of a front-rear direction rail part 54 of the center link 49 to be described later, and the rear upper right part of the upper metal part 13 a of the intermediate sliding door 13. The rear end engaging portion 51 is fixed by spot welding, for example, and the rear end engaging portion 51 is a roller 52 that rotates around a vertical axis disposed on the left and right on the rear side of the upper extending portion 48a of the left and right rail 48, 52 and a support plate 53 that supports the rollers 52 and 52. The support plate 53 may be formed integrally with the center link 49 or may be fixed to the center link 49 by spot welding or bolts. Further, the rear end engaging portion 51 of the center link 49 is easily engaged with the left-right rail 48 and separated from the left-right rail by using a notch 48 c formed in the left-right rail 48. be able to.

  As described above, the center link 49 is supported so as to be movable in the left-right direction when the rear engaging portion 51 is engaged with the rail 48 in the left-right direction. The rollers 52 and 52 are engaged with each other in a state where the front and rear gaps are small between the upper extending portion 48a of the rail 48 in the left-right direction and the upper extending portion 60a at the rear edge of the cover 60 described later. Therefore, although the structure is simple, it is possible to reliably guide the movement of the center link 49 in the left-right direction and to reduce the cost.

  Between the front end fixing portion 50 and the rear end engaging portion 51 of the center link 49, a front-rear direction rail portion 54 having a U-shaped cross section formed by extending left and right side edge portions 54a and 54a upward is provided. Thus, by engaging a roller 55 that rotates about a vertical axis, which is a longitudinal movement member, with the longitudinal rail portion 54, the longitudinal movement member 55 is supported so as to be movable in the longitudinal direction along the center link 49. . While having such a simple configuration, it is possible to reliably guide the movement of the front / rear moving member 55 in the front / rear direction along the center link 49 and to reduce the cost.

  The first link bar 56 and the second link bar 57 have substantially the same length and are arranged substantially symmetrically with respect to the center link 49, and move in a substantially horizontal plane. One end of the first link bar 56 is pivotally attached to the forward / backward moving member 55 (the pivot axis 56a), and the other end of the first link bar 56 is attached to the upper metal portion of the front sliding door 11 by, for example, spot welding. By being fixed to the upper right part of the rear surface of 11a, it is pivotally attached to the rear surface of the front sliding door 11 so as to be rotatable around the vertical axis (the pivot 56b). Similarly, one end of the second link bar 57 is pivotally attached to the forward / backward moving member 55 (pivot shaft 57a), and the other end of the second link bar 57 is fixed to the rear sliding door by, for example, spot welding. 12 is fixed to the upper right part of the rear surface of the upper metal portion 12a, and is pivotally attached to the rear surface of the rear sliding door 12 so as to be rotatable about the vertical axis (the pivot shaft 57b).

  Even with the configuration of the second embodiment as described above, the opening / closing operation of the interlocking open / close sliding door similar to that of the first embodiment can be smoothly and reliably performed with a simpler configuration than the first embodiment. it can.

  8 to 10, the cover 60 is attached to the lower surface of the top plate 7 by a cover attachment plate 61 at the lower part of the center link 54 and the pair of link bars 56 and 57. In addition, the front edge of the cover 60 extends upward, and an opening 60 b is formed to avoid interference with the center link 54 and the pair of link bars 56 and 57. By such a cover 60, it is possible to completely prevent the sliding door link mechanism from being visually recognized from the outside, and it is possible to prevent the appearance from being impaired.

It is a perspective view of the cabinet in which the interlocking opening / closing type sliding door which concerns on Embodiment 1 of this invention was used. It is a plane sectional view of the cabinet in which the interlocking opening / closing type sliding door concerning Embodiment 1 of the present invention was used. It is right side sectional drawing of the cabinet in which the interlocking opening / closing type sliding door which concerns on Embodiment 1 of this invention was used. It is composition explanatory drawing of the link mechanism which connects the front and back sliding door and the intermediate sliding door in the interlocking opening / closing type sliding door which concerns on Embodiment 1 of this invention. It is a top sectional view showing the state where the interlocking opening / closing type sliding door concerning Embodiment 1 of the present invention was opened, (a) moved the interlocking opening / closing type sliding door to the left, and (b) is the interlocking opening / closing type sliding door. This shows a state in which is moved to the right. It is a plane sectional view for explanation of a latch mechanism, (a) shows a locked state, and (b) shows an operation for unlocking. It is a front view for description of a locking device. It is a plane sectional view of the cabinet in which the interlocking opening / closing type sliding door concerning Embodiment 2 of the present invention was used. It is right side sectional drawing of the cabinet in which the interlocking opening / closing type sliding door which concerns on Embodiment 2 of this invention was used. It is composition explanatory drawing of the link mechanism which connects the front / back sliding door and the intermediate sliding door in the interlocking opening / closing type sliding door which concerns on Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cabinet 2 Cabinet body 2a Opening part 2b Storage space 3 Base 4 Left side plate 5 Right side plate 6 Back plate 7 Top plate 8a, 8b Front rail 9a, 9b Rear rail 10a, 10b Intermediate rail 11 Front sliding door 12 Rear sliding door 13 Intermediate sliding door 11a 11b, 12a, 12b, 13a, 13b Metal parts 11c, 12c and 13c Glass part 15 Left-right rail 15a Upper extension part 16 Center link 17 Front end fixing part 18 Rear end engagement part 19 Roller 20 Support plate 20a Upper extension Front and rear direction rail portion 21a Left and right edge portion 22 Front and rear moving members 23, 24 and 25 Roller 26 First link bar 26a and 26b Axis 27 Second link bar 27a and 27b Axis 28 and 29 Fixed Plate 30 First auxiliary link bar 31 Second auxiliary link bar 32 Axis 33 Low 34, 35 Axis 36, 37 Handle 48 Left-right rail 48a Upper extension 48b Rear extension 49 Center link 50 Front end fixing part 51 Rear end engagement part 52 Roller 53 Support plate 54 Front-rear direction rail part 54a Left right edge 55 Forward / backward moving member 56 First link bar 56a, 56b pivot 57 Second link bar 57a, 57b pivot 58, 59 Fixed plate 60 Cover 61 Cover mounting plate

Claims (5)

A front sliding door, a rear sliding door, and an intermediate sliding door, which are arranged at the opening of the cabinet so as to be movable in the left-right direction respectively along the front rail, the rear rail, and the intermediate rail between the front and rear rails, which are individual three-row rails. ,
Guide members erected on the left and right at the upper rear or lower rear of the storage space of the cabinet;
It has a rear end engaging portion that is engaged with the guide member and is slidably supported in the left-right direction, and a front end fixing portion that is fixed to the upper or lower portion of the rear surface of the intermediate sliding door, and is substantially horizontal in the front-rear direction. A center link extending to
A longitudinally movable member supported so as to be slidable in the longitudinal direction along the center link;
A first link bar that is pivotally mounted in a substantially horizontal plane, one end of which is pivotally attached to the front / rear moving member and the other end of which is pivotally attached to one rear surface of the front sliding door and the rear sliding door, and the front / rear movement A pair of link bars comprising a second link bar which is pivotally attached to the member and which is pivotally attached to the other rear surface of the front sliding door and the rear sliding door and which moves in a substantially horizontal plane. Interlocking open / close sliding door. The pair of link bars have substantially the same length and are disposed substantially symmetrically with respect to the center link.
Two ends of a pair of auxiliary link bars each having a first auxiliary link bar and a second auxiliary link bar having substantially the same length are pivotally supported with each other, and the pivot is located on the front side of the front-rear moving member. And slidably supported in the front-rear direction along the center link, and the other ends of the pair of auxiliary link bars are pivotally attached to intermediate portions of the first link bar and the second link bar, respectively. The interlocking opening / closing type sliding door according to 1. The guide member is a left-right rail provided with an upper extending portion extending in the left-right direction extending from the left and right in the upper rear portion or lower rear portion of the storage space of the cabinet and extending the front edge portion upward,
A rear end engaging portion of the center link supports a plurality of rollers that rotate around a horizontal axis in the front-rear direction disposed on the left and right sides of the upwardly extending portion of the left-right rail, and the rollers. And a support plate having a surface facing the upper extending portion disposed on the front side of the upper extending portion of the left-right rail,
Between the rear end engaging portion and the front end fixing portion of the center link, a front and rear direction rail portion having a U-shaped cross section formed by extending the left and right side edge portions upward is provided.
The slide support in the front-rear direction along the center link of the front-rear moving member engages a plurality of rollers mounted on the front and rear of the lower surface of the front-rear movement member on the front-rear direction rail portion of the center link. The interlocking opening / closing type sliding door according to Item 1. Between the rear end engaging portion and the front end fixing portion of the center link, a front and rear direction rail portion having a U-shaped cross section formed by extending the left and right side edge portions upward is provided.
3. The slide support in the front-rear direction along the center link of the pivot of the pair of auxiliary link bars engages the roller mounted on the lower part of the pivot on the rail in the front-rear direction of the center link. The interlocking open / close sliding door described. The guide member is a left-right rail provided with an upper extending portion extending in the left-right direction extending from the left and right in the upper rear portion or lower rear portion of the storage space of the cabinet and extending the front edge portion upward,
A rear end engaging portion of the center link is composed of a plurality of rollers that rotate around a vertical axis disposed on the left and right sides of an upper extending portion of the left-right rail, and a support plate that supports the rollers. Yes,
A vertical direction in which the front / rear moving member engages a front / rear direction rail portion having a U-shaped cross section formed by extending left and right side edges upward between a rear end engaging portion and a front end fixing portion of the center link. The interlocking opening / closing type sliding door according to claim 1, wherein the sliding door is a roller that rotates about an axis.

Images