JP2009257085A - Multiplex sliding-type sliding door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multiplex sliding-type sliding door device which can shorten the length of a guide member used for guiding a door body which becomes the door-tip side when an opening is closed. <P>SOLUTION: The multiplex sliding-type sliding door device is provided with the first and second door bodies 1, 2 and guide rails 21, 22 which are the first and second guide members respectively which guide the door bodies 1, 2 in the opening and closing direction. The opening is opened and closed by the first and second door bodies 1, 2, and the opening is closed not by the travel of the first door body 1 but by the travel of the second door body 2. The first guide rail 21 used for the first door body 1 is attached to a transom 5 which is a non-movable member, and the second guide rail 22 used for the second door body 2 is attached to the first door body 1. By moving the second guide rail 22 of which the tip on the closing side is projected from the first door body 1 with the first door body 1, the length of the second guide rail 22 can be shortened. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  In the present invention, a plurality of door bodies guided by a guide member are arranged in the door body thickness direction, and the opening portions are opened and closed by the movement of these door bodies in the same direction, so that these door bodies are opened and closed. The present invention relates to a multiple sliding type sliding door device in which the opening is closed by shifting, and can be used, for example, for an upward sliding type sliding door device in which each door body is suspended from a guide member disposed on the upper part.

  The double sliding door device, which is a multiple sliding door device, includes first and second door bodies and first and second guide members that guide the door bodies in the opening and closing direction. The opening is opened and closed by the movement in the same direction of the first and second door bodies, which are provided adjacent to each other in the thickness direction of the door body. It is closed by the first door body and the second door body which are displaced in the direction. And in the case of an upper suspension type sliding door apparatus, two guide rails are arrange | positioned at the upper part of a door body, and each door body is suspended from these guide rails.

  In the conventional double sliding door device, as shown in Patent Document 1 below, both the first guide rail for the first door body and the second guide rail for the second door body are: It is attached to the upper frame which is immovable with respect to these door bodies.

JP-A-11-6372 (paragraph number 0010, FIG. 2)

  According to this prior art, of the first door body and the second door body, the second door body which is the closed side when the opening is closed, that is, the door side is the first door when the opening is closed. The second door when the opening is opened and the second door when the opening is opened retreats to the same or substantially the same position as the first door when the opening is opened. The second guide rail for guiding the door body in the opening / closing direction has a long length corresponding to a large opening / closing movement amount of the second door body. This complicates the structure of the entire sliding door device.

  An object of the present invention is to provide a multiple-sliding sliding door device that can shorten the length of a guide member for guiding a door body on the door tip side when the opening is closed.

  A multiple sliding door device according to the present invention includes at least first and second door bodies, and first and second guide members that guide the door bodies in the opening and closing direction, and the door body thickness. The opening is opened and closed by the movement in the same direction of the first and second door bodies that are arranged adjacent to each other in the vertical direction, and the opening is more open than the first door body. In the multiple sliding type sliding door device that is closed by the first and second door bodies shifted in the opening and closing direction by advancing toward the closing side, the first guide member for the first door body is the first and second door members. The second guide member is attached to an immovable member that is immovable with respect to the two-door body, and the second guide member for the second door body is attached to the first door body.

  According to this multiple pulling type sliding door device, the second guide member for the second door body that moves forward closer to the closing side than the first door body and closes the opening is stationary with respect to the first and second door bodies. The second guide member moves in the opening / closing direction together with the first door body because it is attached to the first door body that is guided and moved by the first guide member, not the stationary member. For this reason, compared with the case where the 2nd guide member is attached to an immovable member, the length of the 2nd guide member to an opening-and-closing direction can be shortened, and, thereby, reduction of material cost about the 2nd guide member And simplification of the overall structure of the multiple sliding door device.

  Further, by attaching the second guide member to the outer surface of the first door body, the first door body is engaged with the first guide member attached to the stationary member, and then the second door body is moved to the second guide member. Construction work for engaging and disposing can be easily performed.

  In the present invention, the first guide member and the second guide member may be arranged with their height positions shifted up and down, and these guide members may be arranged at the same or substantially the same height position.

  According to the latter, the height dimension of the multiple sliding door device can be reduced in the portion where the first guide member and the second guide member are arranged, and as a result, the vertical dimension of the entire multiple sliding door device can be shortened. And can be made compact.

  In the present invention, the first guide member and the second guide member may be of any structure and type as long as they can guide the first door body and the second door body in the opening and closing direction. A rail, another example is a slide rail. The guide rail is a member for guiding the door body in the opening and closing direction by the roller that is a member on the door body being slidably engaged, and the slide rail is a slide bearing. It is a member for guiding a door body in the opening-and-closing direction by this slide bearing.

  Further, when the first guide member is the first guide rail and the second guide member is also the second guide rail, each of the first door body and the second door body is guided by these guide rails. A plurality of rollers that roll in this manner are provided in the opening and closing direction, but all of the plurality of rollers provided in the second door body may be arranged to be freely rollable on the second guide member. Among them, it is preferable that at least one roller arranged on the closed side is guided by the first guide rail to be rotatable, and the remaining rollers are guided by the second guide rail to be rotatable.

  According to this, compared with the case where all the rollers provided on the second door body are guided to the second guide rail to be freely rollable, the extension length of the second guide rail toward the closing side can be shortened. Further shortening of the two guide rails can be achieved.

  Further, according to this, since the weight of the second door body is divided and supported by the first guide rail and the second guide rail, the second door body moves closer to the closing side than the first door body, and the opening portion is moved. The weight support of the second door body when it is closed can be effectively shared by these guide rails.

  Moreover, the location of the 1st door body which attaches a 2nd guide rail is arbitrary. For example, when the first door body is formed to include a door body main body and a bracket having a roller attached to the door body main body and guided by the first guide rail, Two guide rails may be attached, the second guide rail may be attached to both the door body main body and the bracket across the door body main body and the bracket, or the second guide rail may be attached to the bracket.

  When the second guide rail is attached to the bracket, it is not necessary to perform a machining operation such as screw hole processing for attaching the second guide rail to the door body, and the manufacturing of the door body can be facilitated.

  The engagement structure between the first and second guide rails and the roller may be arbitrary. That is, of the guide rail and the roller that are engaged with each other by the groove and the protrusion inserted into the groove, the roller may have a groove and the guide rail may have a protrusion. And a groove may be formed in the guide rail.

  Moreover, you may make the 1st door body equip the reinforcement part for reinforcing the intensity | strength with respect to the bending deformation of the 2nd guide member attached to this 1st door body.

  According to this, even if the weight of the second door body acts on the second guide member, the strength against the bending deformation of the second guide member is reinforced by the reinforcing portion, so that the second guide member is greatly bent and deformed. In this way, the opening and closing movement of the second door body guided by the second guide member can be stabilized.

  In this way, when the first door body is provided with a reinforcing portion for reinforcing the strength against the bending deformation of the second guide member, the reinforcing portion is used in the member used for forming the first door body. The reinforcing member may be provided as a part of the first door, or a reinforcing member may be prepared as a member different from the member used to form the first door, and the reinforcing member may be provided in the first door. Thus, the reinforcing member may be the reinforcing portion provided in the first door body.

  When the reinforcing member for reinforcing the strength against the bending deformation of the second guide member is provided on the first door body as in the latter case, the shape and structure of the reinforcing member are arbitrary. One example thereof is to provide the reinforcing member with a portion that receives the second guide member from below, thereby effectively preventing the deformation of the second guide member.

  In addition, an example of the case where the reinforcing member is provided with a portion that receives the second guide member from below is an L-shaped portion that is formed at a location beyond the distal end portion on the closed side of the second guide member. It is to make it a hook part.

  According to this, the most flexible part of the 2nd guide member can be reinforced with a reinforcement member, and the whole amount of bending of the 2nd guide member can be made small.

  In addition, the second guide member and the reinforcing member may be individually attached to the first door body, but the second guide member and the reinforcing member are overlapped with each other in the thickness direction of the first door body by the same coupler. It is preferable that the joints be joined together.

  According to this, a 2nd guide member and a reinforcement member can be attached to a 1st door body with the simple structure with few members.

  In the above invention, the structure for opening and closing the first door body and the second door body in association with each other may be arbitrary. One example is that when at least one of the first door body and the second door body moves the second door body, which has been retracted to the position where the opening is opened, to the closed side by a predetermined distance, the first door A locking member is provided in which the body and the second door body are connected to each other, and when the second door body is further moved to the closing side, both door bodies are moved together by the locking member. It is to be configured. In another example, the first door body and the second door body are connected by an interlocking mechanism, and high speed movement of the second door body is transmitted to the first door body as low speed movement, and these door bodies are interlocked. Then, it is configured to open and close.

  In addition, the first guide member and the second guide member described above may be disposed on the upper part of the first door body and the second door body, may be disposed on the lower part, and may be disposed on both the upper part and the lower part. Also good. That is, the present invention can also be applied to an upper guide type multiple sliding type sliding door device in which the movement guidance of the first and second door bodies by the first and second guide members is performed above the door bodies. The present invention can also be applied to a lower-guiding multiple sliding sliding door device performed at the lower part, and can also be applied to an upper and lower both-guiding multiple sliding sliding door device performed at both the upper and lower portions of the door body.

  In addition, the present invention provides a double sliding door device in which the number of the plurality of door bodies arranged to be shifted in the door body thickness direction is two, and a triple sliding type sliding door device in which the number is three. The present invention can also be applied to four or more four-pull sliding door devices. When the present invention is applied to the triple super-sliding sliding door device, the guide member for the door body that is not the first door body and the second door body is adjacent to the door body. It may be attached to the stationary member or may be attached to the immovable member.

  Furthermore, the present invention is also applicable to a draw-type sliding door device in which two first door bodies and two second door bodies are arranged on both the left and right sides, and the openings are opened and closed by moving them in opposite directions. In addition, the present invention can also be applied to a draw-type triple super-drawing type sliding door device in which three or more door bodies are arranged on both the left and right sides.

  Furthermore, this invention is provided with the sliding door apparatus provided with the door pocket in which the 1st and 2nd door body which moved backward in order to open an opening part is accommodated, the sliding door apparatus which is not provided with the door pocket, and also the door pocket. However, the present invention can also be applied to a sliding door device in which the door pocket is a single-sided door pocket that hides only one side of the door body.

  According to the present invention, in the multiple pulling type sliding door device, it is possible to obtain an effect that the length of the guide member for guiding the door body on the door end side when the opening is closed can be shortened.

FIG. 1 is a front view showing the entirety of a double sliding door device according to an embodiment of the present invention, in which an opening having first and second two door bodies serving as an entrance is closed. FIG. FIG. 2 is a front view showing the moving mechanism for opening and closing the two door bodies with the uncovered cover shown in FIG. 1 removed, and when the two door bodies are in the position of FIG. FIG. FIG. 3 is a plan view showing the moving mechanism of FIG. 2 when the two door bodies are in the position of FIG. FIG. 4 is a plan view showing an interlocking mechanism for opening and closing two door bodies in conjunction with each other, and is a view when the two door bodies are in the position of FIG. FIG. 5 is a front view showing the moving mechanism for opening and closing the two door bodies with the uncovered cover shown in FIG. 1 removed, and the two door bodies reach the retracted position. It is a figure which shows the time of opening the opening part shown by. FIG. 6 is a plan view showing the moving mechanism in FIG. FIG. 7 is a plan view showing the interlocking mechanism in FIG. 8 is a cross-sectional view taken along line S8-S8 in FIG. 9 is a cross-sectional view taken along line S9-S9 in FIG. FIG. 10 is a front view showing the first door body and the second guide rail attached to the two brackets of the first door body. FIG. 11 is a longitudinal sectional view of the door body showing the lower guide means for the first and second door bodies shown in FIG. FIG. 12 is a plan view showing the lower guide means for the first door shown in FIG. FIG. 13 is an exploded perspective view showing brackets for attaching the rollers engaging with the first and second guide rails to the first and second door bodies, and roller detachment preventing means provided on the brackets. FIG. 14 is a top front view of the first door body showing a state in which the first door body with the roller detachment preventing means of FIG. 13 attached to the bracket is movable along the first guide rail. FIG. 15 is a view similar to FIG. 14 showing roller detachment preventing means according to another embodiment. FIG. 16 is a view showing an embodiment in which a substantial length changing means for increasing the substantial length of the string-like member is provided at the coupling portion between the string-like member of the interlocking mechanism and the second door body. It is the same figure. FIG. 17 is a view similar to FIG. 7 in the embodiment of FIG. 18 is a cross-sectional view taken along the line S18-S18 in FIG. 16 showing the rotation stopping protrusions of the base member. FIG. 19 is a view similar to FIG. 10 showing an embodiment in which a reinforcing member for reinforcing the strength against bending deformation of the second guide rail attached to the first door body is provided on the first door body. 20 is a view similar to FIG. 8 in the embodiment of FIG. FIG. 21 is a front view showing the free stop device shown in FIG. FIG. 22 is a plan view of the free stop device of FIG. FIG. 23 is a plan cross-sectional view of the door tip portion showing another embodiment of the door tip portion of the second door body. FIG. 24 is a plan cross-sectional view showing an embodiment of a door tip portion of the second door body 2 having a structure different from that of FIG. FIG. 25 is a view similar to FIG. 7 showing another embodiment of the tension relaxation means in the interlocking mechanism. FIG. 26 is a view similar to FIG. 7 showing another embodiment of the tension applying means in the interlocking mechanism.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 is a front view showing the entire sliding door device according to the present embodiment.

  As shown in FIG. 1, the sliding door device according to the present embodiment is a double sliding type sliding door device having two first door bodies 1 and second door bodies 2. These door bodies 1 and 2 open and close the opening 3 serving as an entrance between the hallway and the room in the building, and this opening 3 is a structure of the outer frame for the double sliding door device. One side of the space surrounded by the door-side vertical frame member 4, the upper horizontal frame member 5, the door-side vertical frame member 6, and the floor 7. It is formed by a space closer to the door tip (closed side) than the door pocket panel 8 forming the type door pocket.

  The 1st door body 1 and the 2nd door body 2 which open and close the opening part 3 by moving to the same direction are shifted | deviated and arrange | positioned in the thickness direction of these door bodies 1 and 2 (refer FIG. 8). When these door bodies 1 and 2 advance to the closing side and close the opening 3, the second door body 2 becomes the closing side and the position of the first door body 1 as shown in FIG. 1. Is a position shifted from the second door body 2 to the opening side (see FIG. 3). Further, when both door bodies 1 and 2 are opened and moved to the door bag panel 8 shown in FIG. 1, these door bodies 1 and 2 overlap in the thickness direction of these door bodies 1 and 2 and are in the retracted position. Reach (see FIG. 6).

  The inspector 5 having a length straddling between the two vertical frame members 4 and 6 shown in FIG. Normally, this horizontally long inspection port is closed by the cover 9, and the cover 9 is formed on the protruding piece 4 </ b> A of the vertical frame member 4 and the protruding piece 6 </ b> A of the vertical frame member 6. It is attached seamlessly 5 with set screws 10 and 11 screwed into the screw holes. By removing the cover 9, it is possible to perform inspection, maintenance, repair, and the like for the moving mechanism incorporated in the interior 5 to open and close the two door bodies 1 and 2.

  FIG. 2 is a front view of the moving mechanism shown with the cover 9 removed, and shows a state in which the two door bodies 1 and 2 close the opening 1 as shown in FIG. FIG. 3 is a plan view showing the moving mechanism at this time. Further, FIGS. 5 and 6 show the same views as FIGS. 2 and 3 when the two door bodies 1 and 2 reach the open side retracted position and open the opening 3. .

  8 is a sectional view taken along line S8-S8 in FIG. 5. As shown in FIG. 8, the side surface 5A of the invisible 5 opposite to the side on which the cover 9 is arranged has a reinforcing member. The 1st guide rail 21 which is a 1st guide member is attached via the attachment member 12 which serves as both. The first guide rail 21 includes a base 21A that is coupled to the mounting member 12 and extends in the vertical direction, a lower side 21B that extends in the thickness direction of the doors 1 and 2 from the lower end of the base 21A, and the lower side 21B. It consists of a rising portion 21C rising from the tip.

  As can be seen from FIGS. 3 and 6, the first guide rail 21, which is an extruded product or a pultruded product made of aluminum alloy, has a length that extends over substantially the entire length of the intangible 5. As shown in FIGS. 3 and 6, the first guide rail 21 has two rollers 31 and 32 provided on the first door body 1 in the opening / closing movement direction of the first door body 1. These rollers 31 and 32 are movably engaged with each other, and are attached to the upper portion of the door body 1A (see FIG. 8) of the first door body 1 via the bracket 13 shown in FIG.

  For this reason, the first door body 1 is guided by the first guide rail 21 disposed at the upper portion and is movable, and is a top-suspended door body suspended from the guide rail 21. . As shown in FIGS. 3 and 6, the two brackets 13 of the first door body 1 are second guide members that extend in the opening / closing movement direction of the door bodies 1 and 2, similar to the first guide rail 21. A second guide rail 22 is attached. As shown in FIG. 8, the second guide rail 22 also has a base portion 22A extending in the vertical direction and the thickness direction of the door bodies 1 and 2 from the lower end of the base portion 22A, like the first guide rail 21. The base 22 </ b> A is coupled to the bracket 13 of the first door body 1. The base 22 </ b> A is composed of an extending lower side 22 </ b> B and an upright portion 22 </ b> C rising from the tip of the lower side 22 </ b> B.

  FIG. 10 shows a front view of the first door body 1 and the second guide rails 22 attached to the two brackets 13 of the first door body 1.

  As shown in FIGS. 3 and 6, the second guide rail 22 includes two rollers 33 and 34 provided on the second door body 2 in the opening / closing movement direction of the second door body 2. An opening side (door bottom side) roller 34 is movably engaged, and a closing side (door end side) roller 33 is movably engaged with the first guide rail 21. Of the rollers 33 and 34, the roller 34 is attached to the upper portion of the door body 2A (see FIG. 8) of the second door body 2 via the bracket 13 shown in FIG. As can be seen from FIG. 6, the door of the second door body 2 is provided via a bracket 14 that has a dimension in the thickness direction of the door bodies 1 and 2 larger than that of the bracket 13 and extends over the second guide rail 22. It is attached to the upper part of the body main body 2A. This bracket 14 is also shown in FIG. 9, which is a sectional view taken along line S9-S9 in FIG.

  For this reason, the second door body 2 is guided by the first and second guide rails 21 and 22 arranged at the upper portion and is movable, and the second door body 2 is suspended from the guide rails 21 and 22. It is a suspended door. The second guide rail 22 is for guiding the second door body 2 in the opening / closing direction.

  And since the 1st guide rail 21 is attached to the seamless 5 which is an immovable member with respect to the door bodies 1 and 2 which move open and close, it always does not move, but the 2nd guide rail 22 is the 1st door. Since it is attached to the body 1, it moves together with the first door body 1.

  The first door body 1 and the second door body 2 described above are connected by the interlocking mechanism 40 shown in FIGS. 4 and 7, whereby the door bodies 1 and 2 are opened and closed in the same direction at different speeds. It is like that. 4 shows the interlocking mechanism 40 when the opening 3 in FIG. 1 is closed by two door bodies 1 and 2, and FIG. The interlocking mechanism 40 when the part 3 is opened is shown.

  The interlocking mechanism 40 includes two rotating bodies 41 and 42 provided on the upper surface of the door body 1 </ b> A of the first door body 1, and these rotating bodies 41 arranged in the opening / closing movement direction of the first door body 1. , 42. The string-like member 43 is connected to the invisible member 5 which is a non-moving member at the location A, and the rotating bodies 41, 42 are interposed therebetween. Even at a location B on the opposite side to the location A, the second door body 2 is coupled.

  The connection structure of the string-like member 43 to the mesh 5 at the coupling location A is attached to the mesh 5 via a bracket 44 and is made of rubber having a length in the opening / closing movement direction of the door bodies 1 and 2. Elastic members 45, holes 45A formed through the elastic members 45 in the opening / closing movement direction of the door bodies 1 and 2, and both sides of the elastic members 45 sandwiched between the string members 43 inserted through the holes 45A. It is comprised with the two contact members 46 fixed by. Therefore, the movement of the string-like member 43 in the opening / closing movement direction of the door bodies 1 and 2 is prevented by the contact member 46 coming into contact with the elastic member 45. The inside of the hole 45A is not moved and moved in the opening / closing movement direction of the door bodies 1 and 2.

  When the string-like member 43 is instantaneously subjected to a large tension in the opening / closing movement direction of the doors 1 and 2 and the string-like member 43 tries to move in this direction, the elastic member 45 is elastically moved by the contact member 46. By compressing and deforming, this instantaneous tension is relieved. Therefore, the coupling structure at this coupling point A constitutes a tension relaxation means 47 that can relax the tension acting on the string-like member 43 by the elastic deformation of the elastic member 45.

  Note that support members 48 and 49 that support the vertical rotation center axes 41A and 42A of the rotary bodies 41 and 42 are disposed below the rotary bodies 41 and 42, respectively. Bending pieces 48A and 49A are provided at portions corresponding to the outer peripheral portions of the rotating bodies 41 and 42 in FIG. These bent pieces 48A and 49A prevent the string-like member 43 hung around the outer peripheral grooves of the rotating bodies 41 and 42 from falling off.

  The coupling structure of the string-like member 43 to the second door body 2 at the coupling location B is a rotation that is disposed on the upper surface of the door body 2A of the second door 2 so as to be rotatable about the rotation center axis 50A. The member 50, two holes 50B formed in portions opposite to the rotation center axis 50A of the rotation member 50, and a string-like member 43 inserted into these holes 50B The stop member 51 fixed to both end portions of the second door body 2 and the rotating member 50 are screwed in until the tip comes into contact with the stepped portion 2B of the door body 2A of the second door body 2. The bolt 53 is connected to the rotating member 50. Since both end portions of the string-like member 43 are prevented from coming off by the respective stop members 51 at portions opposite to each other with respect to the rotation center axis 50 </ b> A of the rotation member 50, both ends of the string-like member 43. The part is connected to the rotating member 50.

  For this reason, the string-like member 43 is coupled to the second door body 2 via the rotation member 50, and when the lock nut 52 is loosened and the bolt 53 is rotated forward, the rotation member 50 is rotated about the rotation center axis. 4A and 4B, the tension is applied to the string-like member 43. Therefore, the bolt 53 is a turning operation member for turning the turning member 50, and the connecting structure at the connecting portion B is a tension applying force for applying a tension to the string-like member 43. The means 54 is constituted.

  Since the first door body 1 and the second door body 2 are connected by the interlocking mechanism 40 configured as described above, the second door is held by the grip portion 55 of the second door body 2 shown in FIG. When the body 2 is moved to the opening side by manual operation, this moving force acts on the rotating body 41 from the string-like member 43 shown in FIG. 4, so that the first door body 1 also moves in the same direction. Become. Then, the movement of the first door body 1 is performed while the rotating bodies 41 and 42 arranged on the first door body 1 rotate and feed the string-like member 43, so that the first door body 1 is the second door body 1. It moves at half the speed of the door 2.

  After the first and second door bodies 1 and 2 reach the retracted position as shown in FIG. 7, when the second door body 2 is moved to the closing side by the grip portion 55, this moving force is string-like. By acting on the rotating body 42 from the member 43, the first door body 1 also moves to the closing side, and the first door body 1 moves at a half speed of the second door body 2.

  Thus, according to the interlocking mechanism 40 of the present embodiment, the first door body 1 is a low-speed door body that opens and closes at a low speed, and the second door body 2 is a high-speed door body that opens and closes at a high speed. The moving speed of the second door body 2 is twice the moving speed of the first door body 1, and the moving directions of the door bodies 1 and 2 are the same.

  Further, according to the interlocking mechanism 40, when the second door body 2 is opened and closed, the first door body 1 also starts opening and closing from the beginning of the opening and closing movement, and the first door body 1 and the second door The body 2 can be smoothly interlocked and moved from the beginning to the end.

  As shown in FIG. 1, lower guide means 61 is provided at the lower part of the first door body 1, and lower guide means 62 is also provided at the lower part of the second door body 2. The movement of the first door body 1 guided by the first guide rail 21 described above is also guided by the lower guide means 61, and the movement of the second door body 2 guided by the first and second guide rails 21 and 22 is performed. The lower guide means 62 is also guided.

  FIG. 11 shows these lower guide means 61 and 62, and FIG. 12 is a plan view showing the lower guide means 61 for the first door body 1 among these lower guide means 61 and 62. It is. As shown in FIG. 11, the lower guide means 61 has a plate-like base member 63 fixed to the floor 7 and a plate-like rotating member 64 placed on the base member 63. . As shown in FIG. 12, the lower guide means 61 is rotatably attached to center shafts 65 and 66 that are separated from each other in the opening / closing movement direction of the door bodies 1 and 2, and upper portions of these center shafts 65 and 66. Guide rollers 67 and 68 serving as guide members for guiding the lower portions of the door bodies 1 and 2 in the opening / closing movement direction are provided, and the lower end of one central shaft 65 penetrates the rotation member 64 and is a base The lower end of the other central shaft 66 is coupled to the rotating member 64.

  Therefore, the rotation member 64, the central shaft 66, and the guide roller 68 provided on the central shaft 66 can rotate with respect to the base member 63 about the central shaft 65 for the guide roller 67. It has become.

  Rotating means 69 for performing this rotation is provided on the base member 63 of the lower guide means 61. The rotating means 69 has a protrusion 70 fixed at a position of the base member 63 corresponding to the notch 64A formed in the rotating member 64, and is screwed into the protrusion 70, and is normally protruded by a lock nut 71A. And a bolt 71 coupled to 70, and the tip of the bolt 71 faces a contact part 64 </ b> B formed on the rotating member 64. When the lock nut 71A is loosened and the bolt 71 is rotated and advanced, and the bolt 71 is rotated and advanced even after the tip of the bolt 71 contacts the abutting portion 64B, the rotating member 64, the central shaft 66, and the guide roller 68 are As shown by 12 two-dot chain lines 64 ′, 66 ′, and 68 ′, the base member 63 rotates with respect to the central axis 65. For this reason, the rotation means 69 which concerns on this embodiment is a push-type means using the volt | bolt 71 grade | etc.,.

  As shown in FIG. 11, the two guide rollers 67 and 68 are arranged on the lower surface of the first door body 1 in the opening / closing movement direction of the door body 1 that is orthogonal or substantially orthogonal to the thickness direction of the door body 1. It is inserted into the long groove 1C, thereby guiding the movement of the first door body 1. If the diameter of the guide rollers 67 and 68 is relatively smaller than the width of the groove 1C, the first door 1 is moved. The lower guide action of the first door body 1 by the lower guide means 61 during the movement of the one door body 1 is rattling in the thickness direction of the door body 1 orthogonal or substantially orthogonal to the opening / closing movement direction of the door body 1. It will be done in.

  In such a case, the rotating member 69 causes the rotating member 64, the central shaft 66, and the guide roller 68 to move to the central shaft 65 as shown by two-dot chain lines 64 ', 66', 68 'in FIG. Is rotated with respect to the base member 63. Thereby, the arrangement position of the guide roller 68 is changed to a direction having a component in the thickness direction of the first door body 1 with respect to the guide roller 67 whose arrangement position is stationary in the thickness direction of the first door body 1. Thus, since the two guide rollers 67 and 68 can be applied to the opposite side surfaces inside the groove 1C, the lower portion of the first door body 1 is in the thickness direction of the first door body 1. The first door 1 can be guided by the lower guide means 61 while preventing it from swinging.

  The structure of the lower guide means 62 for the second door body 2 shown in FIG. 11 is basically the same as the lower guide means 61 for the first door body 1 described above. The difference is that the base member 72 of the lower guide means 62 is L-shaped, and this base member 72 is coupled to the lower outer surface of the first door body 1. For this reason, the lower guide means 62 for the second door body 2 moves integrally with the first door body 1. A rotating member 73 is placed on the horizontal portion of the base member 72, and one of the two central shafts 74, 75 provided in the opening / closing movement direction of the second door body 2 is rotated at the lower portion. The lower central shaft 75 is coupled to the base member 72 through the moving member 73, and the lower portion of the other central shaft 75 is coupled to the rotating member 73. Guide rollers 76 and 77 inserted into the formed groove 2C are rotatably attached.

  The rotating member 73, the central shaft 75, and the guide roller 77 can be rotated with respect to the base member 72 about the central shaft 74 by the rotating means 78 having the same structure as the rotating means 69. This rotating means 78 is provided on the base member 72.

  In the bracket 13 shown in FIG. 13, the roller 31, 32, 34 that is rotatably attached to the bracket 13 is detached from the first and second guide rails 1, 2. Preventing means 80 is attached. This roller detachment prevention means 80 is formed by punching and bending a plate material, and rises from a base portion 13A coupled to the upper surfaces of the door body main bodies 1A and 2A of the door bodies 1 and 2 in the bracket 13. The doors 1 and 2 of the upright portion 13B are attached to either one of the bent portions 13C and 13D on both sides in the opening and closing movement direction by fastening tools such as screws.

  More specifically, the roller detachment preventing means 80 is a main portion attached to either one of the bent portions 13C and 13D (the bent portion 13C in the case of the embodiment of FIG. 13) with a fastening device such as a screw. 81 and a plane L-shape comprising a main portion 81 and a sub-portion 82 that is bent at a right angle in a direction parallel to the moving direction of the doors 1 and 2 and faces the upright portion 13B of the bracket 13. The main portion 81 is formed with a notch 83 cut from the sub-portion 82 in the middle of the main portion 81 in the height direction, and a lower portion of the notch 83 extends to the sub-portion 82 side. It has become. In addition, the sub-portion 82 is also formed with a cut-out portion 85 whose upper side is located at the same height as the upper side of the cut-out portion 83 from the main portion 81 side. Since it does not reach the tip of 82 (the end of the sub-portion 82 opposite to the main portion 81), a drop-off prevention portion 86 that protrudes downward is provided at the lower end of the sub-portion 82. The amount of downward protrusion of the drop-off prevention portion 86 does not reach the uplift prevention portion 84 of the main portion 81.

  FIG. 14 shows a state in which the roller detachment preventing means 80 is attached to the bracket 13 to which the roller 31 of the first door 1 is attached. Like the other rollers 32 to 34 engaged with the first and second guide rails 21 and 22, the roller 31 includes flange portions 31A and 31B on both sides in the thickness direction of the roller 31, and these flange portions 31A. , 31B is formed at the center in the width direction of the roller 31 and has a groove portion 31C with which the upright portion 21C of the first guide rail 21 is engaged. The lower side portion 21B and the upright portion 21C of the first guide rail 21 are The roller detachment preventing means 80 is inserted into the notch 83 of the main portion 81.

  For this reason, as shown in FIG. 14, since the roller 31 is movably engaged with the first guide rail 21, a large lifting force acts on the first door body 1 for some reason. When the body 1 and the roller 31 are lifted upward, the lift preventing portion 84 of the roller detachment preventing means 80 comes into contact with the lower side portion 21B and the lower surface of the upright portion 21C of the first guide rail 21, and the first door body 1 is more than that. Further, since the roller 31 is prevented from floating upward, the groove 31C of the roller 31 placed on the first guide rail 21 is prevented from coming off from the first guide rail 21.

  Further, from the state shown in FIG. 14, when for some reason a large impact force from the left side to the right side in FIG. 14 acts on the first door body 1, the first door body 1 and the roller 31 try to move greatly to the right side. The drop-off prevention portion 86 of the roller removal prevention means 80 has a protruding amount that protrudes downward from the flange portions 31A and 31B of the roller 31. Therefore, the upright portion 21C of the first guide rail 21 is dropped off. , And the rising portion 21C of the first guide rail 21 is prevented from dropping over the flange portion 31A. In other words, the flange portion 31A is prevented from dropping from the rising portion 21C.

  Further, from the state shown in FIG. 14, when for some reason a large impact force from the right side to the left side in FIG. 14 acts on the first door body 1, the first door body 1 and the roller 31 try to move greatly to the left side. Since the upright portion 21C of the first guide rail 21 abuts the front end portion 87 in the thickness direction of the first door body 1 at the notch 83 of the main portion 81 of the roller detachment preventing means 80, the flange portion 31B of the roller 31 is provided. The rising portion 21C of the first guide rail 21 is prevented from falling off, in other words, the flange portion 31B is prevented from dropping from the rising portion 21C.

  Therefore, in this case, the distal end portion 87 of the missing portion 83 of the main portion 81 of the roller detachment preventing means 80 is a portion that exhibits the same function as the drop-off prevention portion 86, that is, a drop-off prevention portion.

  As can be seen from the above description, the roller detachment preventing means 80 according to the present embodiment has a planar L-shape having a main portion 81 and a sub-portion 82 by bending a plate material. In the plate material, a cut portion 80A composed of the two cutout portions 83 and 85 shown in FIG. 13 is formed to extend in the thickness direction of the roller 31 from the auxiliary portion 82 side. As shown in FIG. 14, the guide rail 21 is inserted into the cut portion 80A, and the portion of the cut portion 80A disposed below the guide rail 21 is the lifting prevention portion 84. ing. Further, a portion protruding downward on the near side in the extending direction of the cutout portion 80A is one dropout prevention portion 86 of the two dropout prevention portions 86 and 87, and the extension of the cutout portion 80A. The leading end portion in the exit direction is the remaining drop-off prevention portion 87, and these drop-off prevention portions 86 and 87 are disposed on both sides in the thickness direction of the roller 31.

  The above is the description of the roller detachment preventing means 80 attached to the bracket 13 for the roller 31. However, the rollers 32 of the first door body 1 and the second door body 2 shown in FIGS. This also applies to the roller detachment preventing means 80 attached to the bracket 13 for.

  The roller 33 is attached to the second door body 2 with the bracket 14 as described with reference to FIGS. 3 and 6, and this bracket 14 is also provided with a roller detachment preventing means 80. The roller 33 is also prevented from coming off from the first guide rail 21 by the roller coming-out preventing means 80.

  That is, the roller detachment preventing means 80 is provided for each of the rollers 31 to 34 that are disposed in each of the first door body 1 and the second door body 2. These roller detachment preventing means 80 are provided with rollers 31 to 34 that are coupled to the door body main bodies 1A and 2A, not the door body main bodies 1A and 2A of the first door body 1 and the second door body 2. The brackets 13 and 14 are attached.

  As shown in FIG. 2, the door-side brackets 13 of the first and second door bodies 1 and 2 are provided with contact members 91 and 92, and these contact members 91 and 92 are shown in FIG. 3, the first and second door bodies 1, 2 are in the open limit position (retract limit position) by abutting against the stop members 93, 94 arranged near the rear end of the first guide rail 21 indicated by 3. To reach. Further, locking members 95 and 96 by leaf springs are arranged near the rear end portion of the first guide rail 21, and when the first and second door bodies 1 and 2 reach the opening limit position, The locking members 95 and 96 include rollers to be locked 97 and 98 provided by the abutting members 91 and 92 of the first and second door bodies 1 and 2 shown in FIG. In this way, the first and second door bodies 1 and 2 are stopped at that position.

  As shown in FIG. 2, the double sliding door device according to this embodiment is provided with automatic moving means 100 for always urging the first door body 1 toward the closing side and automatically moving it. ing. As shown in FIG. 3, the automatic moving means 100 includes an apparatus main body 102 attached to the first guide rail 21 near the front end portion of the first guide rail 21 via a bracket 101, and FIG. As shown, a reel 103 rotatably incorporated in the apparatus main body 102 and one end coupled to the reel 103 are wound, and the other end extending from the apparatus main body 102 is the second door body 2. And a string-like member 104 coupled to the bracket 14 on the door end side. A spiral spring having one end coupled to the reel 103 and the other end coupled to the apparatus main body 102 is disposed inside the reel 103.

  Therefore, when the second door body 2 is moved from the position in FIG. 2 to the opening side by grasping the grip portion 55 shown in FIG. 1, the spiral spring is moved by the reel 103 that feeds the string-like member 104 while rotating. Accumulated. This accumulated pressure becomes a driving force for automatically moving the second door body 2 to the closing side, and when the hand is released from the grip portion 55, the locked member 98 is locked to the locking member 96. When the operation force to the closing side is applied to the second door body 2 that has been stopped at the movement limit position on the opening side, and the locking of the locked member 98 to the locking member 96 is thereby released, the driving force Thus, the second door body 2 automatically closes and moves, and the first door body 1 connected to the second door body 2 by the interlock mechanism 40 also automatically closes and moves.

  Further, in the double sliding type sliding door device according to this embodiment, when the first door body 1 reaches a predetermined distance from the backward limit position (open limit position) to the closing side, the first door body 1 thereafter A braking device 110 shown in FIG. 2 is provided for decelerating the closing movement speed. The braking device 110 includes a cylinder 112 attached to the first guide rail 21 with a bracket 111, a piston rod 113 that can be expanded and contracted with respect to the cylinder 112, and a bracket 13 on the door bottom side of the first door body 1. The piston rod 113 is attached to the abutting member 91 and protrudes from the cylinder 112 to the opening side of the first door body 1 when the first door body 1 moves from the rear end limit position to the closing side up to a predetermined distance. And a catch member 114 that causes the piston rod 113 to contract and move relative to the cylinder 112 by the closing movement of the first door body 1 thereafter. Since the cylinder 112 is provided with an orifice that exhausts the air inside the cylinder 112 that is compressed by the contraction movement of the piston rod 113, the first door body 1 is moved from the retreat limit position to the closing side up to a predetermined distance. When the first door body 1 is further closed and moved, the closing movement of the first door body 1 and the closing movement of the second door body 2 connected to the first door body 1 by the interlock mechanism 40 are decelerated by the restriction action of the orifice. It will be.

  Further, when the second door body 2 is opened and moved by the gripping portion 55 of FIG. 1 and the first door body 1 is also opened and moved by the interlocking mechanism 40, the piston rod 113 connected to the catch member 114 by a magnetic force or the like is Since the cylinder 112 is provided with a one-way valve that opens an intake port for allowing a large amount of air to enter the cylinder 112 at this time, the first door body 1 and the second door 1 The door body 2 opens and moves at a speed corresponding to the magnitude of the opening operation force applied to the gripping portion 55 in FIG. 1, and when the opening movement distance of the door body 1 reaches a predetermined distance, the catch member 114 extends. It leaves | separates from the piston rod 113 which reached the movement limit position.

  According to the present embodiment described above, the opening and closing movement of the first door body 1 is guided by the first guide rail 21 attached to the invisible member 5 which is an immovable member, but the second door body 2 is Since the first guide rail 21 and the second guide rail 22 attached to the first door body 1 are guided and the second guide rail 22 moves integrally with the first door body 1, the second door body Even if the opening / closing movement distance of 2 is longer than the opening / closing movement distance of the first door body 1, the length of the second guide rail 22 can be shortened. Thereby, the material cost about the 2nd guide rail 22 can be reduced, and the whole structure of a double sliding type sliding door apparatus can be simplified.

  Of the two rollers 33, 34 provided on the second door 2 in the opening / closing movement direction of the second door 2, the closing roller 33 is not the second guide rail 22 but the first guide rail 22. 21 is movably engaged with the first guide rail 21 and guided by the first guide rail 21, and only the opening-side roller 34 is guided by the second guide rail 22, so that the two rollers 33 and 34 are connected to the second guide rail 22. The length of the second guide rail 22 can be shortened as compared with the case where the second guide rail 22 is guided by the rail, whereby the second guide rail 22 can be further shortened.

  Further, when the two rollers 33 and 34 of the second door body 2 are engaged with the second guide rail, when the second door body 2 reaches the closing limit position, the first door body 1 These rollers 33, 34 reach the part of the second guide rail extending long from the first door body 1 to the closing side, and are attached to and supported by the first door body 1 in a cantilever state. Although the entire weight of the second door body 2 is supported, in the present embodiment, the roller 33 on the closed side of these rollers 33 and 34 is engaged with the first guide rail 21, so this Such a situation does not occur.

  Further, as shown in FIG. 8, the height position where the first guide rail 21 is disposed and the height position where the second guide rail 22 is disposed are the same or substantially the same. The height dimension of the location where the guide rails 21 and 22 are arranged, specifically, the height dimension of the invisible 5 in which the guide rails 21 and 22 are accommodated can be reduced, whereby 2 according to the present embodiment. The overall size of the double sliding door device can be reduced.

  Further, according to the present embodiment, the second guide rail 22 is not the door body 1A of the first door body 1 but the roller 31 that engages with the first guide rail 21 that guides the opening and closing movement of the first door body 1. , 32, the door body 1A does not need to be subjected to processing such as screw hole processing for attaching the second guide rail 22. Manufacturing can be facilitated.

  Moreover, according to this embodiment, among the 1st door body 1 and the 2nd door body 2 which move to the same direction by the interlock mechanism 40, the automatic movement means for automatically moving these door bodies 1 and 2 to the closing side. 100 is connected to the second door body 2 that moves at a higher speed and longer than the first door body 1 due to the interlocking mechanism 40, so that the automatic movement provided from the automatic movement means 100 to the second door body 2 is performed. The power will be small.

  As a result, when the second door body 2 is moved manually by the grip portion 55 to the opening side opposite to the automatic movement direction by the automatic movement means 100, a small hand operation force is applied to the second door body 2. The second door body 2 and the first door body 1 connected to the second door body 2 via the interlocking mechanism 40 can be easily opened and moved with a small operating force.

  Further, the interlocking mechanism 40 has the string-like member 43 inserted through the elastic member 45 at the joint A with the eyeless member 5 as described with reference to FIGS. The second door body shown in FIG. 1 for opening and closing the first and second door bodies 1 and 2 is provided with tension relaxation means 47 having a structure in which the contact member 46 is fixed on both sides of 45. A sudden hand operation force is applied to the two gripping portions 55, whereby a tension is instantaneously applied to the string-like member 43 of the interlocking mechanism 40, so that the string-like member 43 is connected to the first and second door bodies 1, 2. Of the two abutting members 46, the abutting member 46 disposed on the side opposite to the direction of the tension action causes the elastic member 45 to be elastically compressed and deformed even if the abruptly pulled in the moving direction. 43 will be allowed to move slightly, and this will relieve the tension. String member 43 by the instantaneous tension can be prevented occurrence of switching Sonsuru etc. situation.

  In addition, the interlocking mechanism 40 includes the tension applying means 54 that applies tension to the string-like member 43 at the joint B with the second door 2 as described with reference to FIGS. 4 and 7. The tension applying means 54 can be rotated about the rotation center axis 50A, and both ends of the string-like member 43 are located on opposite sides of the rotation center axis 50A. Since the rotation member 50 is connected to the stop member 51 and the rotation member 53 is used to rotate the rotation member 50 about the rotation center axis 50A. When the string-like member 43 is stretched and deformed due to secular change or the like, the rotation member 50 is rotated by the rotation operation member 53, so that the first door body 1 and the second door body 2 are interlocked to open and close. Therefore, the tension of the string-like member 43 necessary for the purpose can be obtained.

  In addition, since both ends of the string-like member 43 are coupled to portions opposite to the rotation center axis 50 </ b> A of the rotation member 50, the rotation member 50 by the rotation operation member 53 is small. A sufficiently long pulling amount of the string-like member 43 can be obtained by the amount of rotation, and the work of applying tension to the string-like member 43 can be easily performed.

  Furthermore, according to this embodiment, each of the lower guide means 61 and 62 for the first and second door bodies 1 and 2 includes grooves 1C formed on the lower surfaces of the first and second door bodies 1 and 2, respectively. 2C includes two guide rollers 67, 68, 76, and 77 inserted into the interior of the 2C, and one of these guide rollers 67 and 76 is provided for the first and second door bodies 1 and 2, respectively. The position of the guide rollers 68 and 77 is fixed in the thickness direction of the door body, and the remaining guide rollers 68 and 77 are moved by the rotation of the rotation members 64 and 73 with respect to the base members 63 and 72 by the rotation means 69 and 78. Since the arrangement position can be adjusted in the direction having the components in the thickness direction of the first and second door bodies 1, 2, the guide rollers 67, 68, 76, 77 can be easily inserted into the grooves 1C, 2C. In order to be able to do these, the width dimensions of the grooves 1C, 2C Even if the diameter of the id rollers 67, 68, 76, 77 is relatively small, the two guide rollers 67, 68, 76, 77 are connected to the door 1 in the grooves 1C, 2C in the respective grooves 1C, 2C. , 2 can be brought into contact with the side surfaces on both sides in the thickness direction. As a result, the lower guide means 61 and 62 can guide the lower portions of the first and second door bodies 1 and 2 while preventing the door bodies 1 and 2 from swinging in the door body thickness direction. .

  Further, the rollers 31 to 34 attached to the first and second door bodies 1 and 2 via brackets 13 and 14 include flange portions 31A and 31B on both sides in the roller thickness direction, and these flange portions 31A and 31B. A groove 31C is formed at the center in the roller thickness direction between which the first and second guide rails 21 and 22 engage, and the first and second door bodies 1 and 2 prevent the rollers from coming off. Means 80 is provided, and this roller detachment prevention means 80 is located below the first and second guide rails 21 and 22 and is brought into contact with the guide rails 21 and 22 due to the upward lifting of the door bodies 1 and 2. It is located on both sides in the roller thickness direction of the groove portion 31C and prevents the groove portion 31C from coming off the guide rails 21 and 22 due to contact, and the door body 1 and 2 are moved in the door body thickness direction. Guy Since the flanges 31A, 31B are provided with dropout prevention portions 86, 87 for preventing the flanges 31A, 31B from falling off the guide rails 21, 22 due to contact with the rails 21, 22, the door bodies 1, 2 are lifted greatly. Even if a force or a large impact force in the thickness direction of the door bodies 1 and 2 acts, the rollers 31 to 34 can be prevented from coming off from the guide rails 21 and 22.

  Further, the roller detachment prevention means 80 is a single part formed by punching and bending a sheet metal, and the lift prevention part 84 and the drop prevention parts 86 and 87 are formed integrally with this one part. Therefore, the parts are easy to manufacture and can be manufactured at low cost.

  Further, since the roller detachment preventing means 80 is provided for each of the rollers 31 to 34 disposed in the first and second door bodies 1 and 2, the rollers 31 for each of the rollers 31 to 34 are provided. ˜34 can be individually prevented from detaching from the guide rails 21, 22, and therefore, the roller detachment preventing function by the roller detachment preventing means 80 can be improved.

  Further, the roller detachment preventing means 80 is not attached to the door body main bodies 1A and 2A of the first and second door bodies 1 and 2, but is coupled to the door body main bodies 1A and 2A, and the rollers 31 to 34 are connected. Since it is attached to the brackets 13 and 14 provided, it is not necessary to perform processing operations such as screw hole processing for mounting the roller detachment prevention means 80 on the door body main bodies 1A and 2A. Since it is only necessary to go to the brackets 13 and 14, the machining operation can be facilitated.

  Next, different embodiments according to the present invention will be described. In the description of these other embodiments, the same reference numerals are used for the same members or members having the same functions as those of the above-described embodiments.

  FIG. 15 shows a roller detachment preventing means 80 'according to another embodiment. This roller detachment preventing means 80 'also has a floating prevention portion 84' and dropout prevention portions 86 ', 87', but the bent portion of the bracket 13 'of this embodiment to which the roller detachment prevention means 80' is attached. The dimension in the thickness direction of the door bodies 1 and 2 with respect to 13C ′ is smaller than the dimension in the thickness direction of the door bodies 1 and 2 with respect to the bent portion 13C of the bracket 13 of the above-described embodiment. The depth in the thickness direction of the door bodies 1 and 2 at the notch 83 ′ of the detachment preventing means 80 ′ is smaller than the depth of the notch 83 of the roller detachment preventing means 80 of the above embodiment. Therefore, the drop-off prevention portions 86 ′ and 87 ′ in the roller detachment prevention means 80 ′ of this embodiment coincide with the inner surfaces of the flange portions 31 </ b> A and 31 </ b> B on both sides of the roller 31 in the thickness direction of the roller 31. Or, it is formed at a substantially coincident position.

  According to this, the prevention of the flange portions 31A, 31B from falling off the upright portion 21C of the guide rail 21 by the dropout prevention portions 86 ′, 87 ′ is an early stage immediately before the flange portions 31A, 31B reach the upright portion 21C. It will be possible at the time of.

  16 and 17 show a string-like member when the first and second door bodies 1 and 2 reach the opening limit position at the joint B between the second door body 2 and the string-like member 43 of the interlocking mechanism 40. An embodiment in which a substantial length changing means 120 for increasing the substantial length of 43 is provided is shown. This substantial length changing means 120 is between the time when the first and second door bodies 1, 2 that have been moved open approach the opening limit position, and until these door bodies 1, 2 reach the opening limit position. The substantial length of the string-like member 43 can be increased.

  That is, in this embodiment, the rotation member 50 of the tension applying means 54 is formed with holes 50B in two portions opposite to each other with respect to the rotation center axis 50A. A stop member 51 is fixed to each end of the inserted string-like member 43, so that the string-like member 43 is displaced 2 in the thickness direction of the second door body 2 in the rotating member 50. It is connected to the second door body 2 at the two positions B1 and B2. Of these connection positions B1 and B2, the connection structure at the connection position B1 far from the first door body 1 is the end of the string-like member 43. A coil spring 121, which is an elastic member, is interposed between a stop member 51 provided in the section and the rotating member 50.

  The substantial length of the string-like member 43 in the normal state, that is, the length of the string-like member 43 that contributes to the interlocking movement of the first and second door bodies 1 and 2, as shown in FIG. The spring 121 is shortened by the extension. Thus, in the state where the substantial length of the string-like member 43 is shortened, the first and second door bodies 1, 2 are interlocked and moved by the interlock mechanism 40 from the opening side to the closing side, and the second door body 2 is moved. The door 3 is brought into contact with the vertical frame member 4 on the closing side shown in FIG. 1, whereby the opening 3 is closed by the first and second door bodies 1 and 2.

  On the other hand, the first and second door bodies 1 and 2 open and move in conjunction with each other, and the first and second door bodies 1 and 2 reach near the opening limit position by this opening movement. When the second door body 2 is further moved to the open side by the gripping portion 55 of FIG. 1 when it has not reached, the stop member 51 at the coupling position B1 compresses the coil spring 121 as shown in FIG. By moving to the rotation member 50 side, the string-like member 43 is drawn out from the hole 50B of the rotation member 50 to the opening side, whereby the substantial length of the string-like member 43 is increased, and the first and first The two door bodies 1 and 2 reach an accurate opening limit position.

  According to this embodiment, the dimensions of the first and second door bodies 1 and 2 in the opening / closing direction must be a predetermined dimension determined based on the width dimension of the opening 3 in FIG. Since the string-like member 43 is connected to the second door body 2 at two positions B1 and B2 that are shifted to the thickness of the second door body 2 in the rotating member 50 after satisfying the constraints, the first And in order to make the 2nd door bodies 1 and 2 reach | attain the exact opening limit position, the connection location A of the intangible 5 and the string-like member 43 from the connection position B1 which is distant with respect to the 1st door body 1. The length of the string-like member 43 up to the first door body 1 is compared with the length of the string-like member 43 from the connection position B2 close to the first door body 1 to the joint A of the intangible 5 and the string-like member 43. The length of the first door body 1 should be longer by an amount corresponding to the difference in distance from the connecting positions B1 and B2. Problem not have been solved by substantially the length changing means 120.

  Thus, in this embodiment, it is necessary when connecting the both ends of the string-like member 43 to the connection positions B1 and B2 of the rotating member 50 that is the second door body member provided in the second door body 2. The substantial length changing means 120 is a rotating member 50, a hole 50B formed at a position far from the first door 1 in the rotating member 50, and a string-like member 43 inserted through the hole 50B. The stop member 51 is fixed to the end of the coil member 51, and the coil spring 121 is an elastic member disposed between the stop member 51 and the rotating member 50.

  Further, in this embodiment, as shown in FIG. 16, the rotating member 50 of the tension applying means 54 is disposed on the plate-like pedestal member 130. Further, the bracket 13 to which the roller 34 on the opening side of the second door body 2 is attached is connected to the bracket 13 at two positions in the opening / closing direction of the door body 2 in the base portion 13A shown in FIG. The bolt 131 which is a tool is coupled to the door body 2A of the second door body 2. FIG. 16 shows one of the bolts 131 on the rotating member 50 side which is the opening side of the door body 2. 131 is shown. The bolt 131 is a bolt for fastening both the base member 130 and the bracket 13 to the door body 2 </ b> A of the second door body 2 together.

  That is, the base member 130 is further placed on the base member 13A of the bracket 13 placed on the upper surface of the door body 2A of the second door body 2, and is a sectional view taken along line S18-S18 in FIG. As shown in FIG. 5, the bolt 131 is inserted through the recessed portion 130 </ b> A of the base member 130 and the hole 132 of the base portion 13 </ b> A, and embedded in the door body 2 </ b> A of the second door body 2. The nut 133 is screwed. When the bolt 131 is rotated, the base member 130 is coupled to the door body 2A of the second door body 2 together with the base portion 13A by one bolt 131.

  Thereby, the bolt for connecting the base member 130 to the door body 2A becomes the bolt 131 for connecting the bracket 13 to the door body 2A. By using the bolt 131 also, the structure of the second door 2 is achieved. Simplification can be achieved.

  However, when the pedestal member 130 is coupled to the door body 2 </ b> A with the single bolt 131 in this way, the head 131 </ b> A of the bolt 131 is attached to the pedestal member 130 when the bolt 131 is rotated. When contacted, the base member 130 may rotate with the bolt 131.

  Therefore, in this embodiment, as shown in FIG. 16, the base member 130 is formed with two protrusions 134 protruding downward, and these protrusions 134 are formed as shown in FIG. The bracket 13 is in contact with the end surface of the base portion 13A and the end surface of the door body 2A. Accordingly, the protrusion 134 can prevent the base member 130 from rotating together with the bolt 131 when the bolt 131 is rotated.

  Further, in this embodiment, the pedestal member 130 is made of a pressed sheet metal, and the protrusion 134 is formed integrally with the pedestal member 130 by press molding such as stamping or extrusion molding of a part of the sheet metal. It has become. Therefore, the operation of providing the protrusion 134 on the base member 130 can be easily performed without using a special part for the protrusion 134.

  In this embodiment, the step 2B of the door body 2A for contacting the tip of the bolt 53, which is the aforementioned rotation operation member of the tension applying means 54, bends the base member 130 made of sheet metal. It is formed by doing.

  19 and 20, even if the second guide rail 22 attached to the first door body 1 receives the weight of the second door body 2 in order to guide the opening and closing movement of the second door body 2. In this embodiment, the guide rail 22 is largely bent downward and is not deformed.

  As shown in FIG. 19, the reinforcing member 140 is coupled to the two brackets 13 of the first door body 1 to which the second guide rail 22 is attached by a coupling tool 141 such as a screw. The reinforcing member 140 is a member having a length in the opening / closing movement direction of the first door body 1 like the second guide rail 22 and, as shown in FIG. 20, a plate-like reinforcing member 140. Are overlapped in the thickness direction of the first door body 1 on the side surface of the base portion 22A extending up and down of the second guide rail 22, and the reinforcing member 140 and the second guide rail 22 are brackets of the first door body 1. 13 are coupled together by the same coupling 141.

  Further, as shown in FIG. 19, an L-shaped hook portion 142 extending downward is formed at the distal end portion of the reinforcing member 140 that exceeds the distal end portion of the second guide rail 22. As can be seen from FIG. 20, the lower side portion 22B of the second guide rail 22 is placed on the horizontal portion 142A of the hook portion 142. In other words, the hook portion 142 of the reinforcing member 140 is a portion of the reinforcing member 140 that receives the closed end portion of the second guide rail 22 from below.

  According to this embodiment, the front end portion on the closed side of the second guide rail 22 protrudes from the first door body 1. More specifically, the front end portion on the closed side of the second guide rail 22 is the first door body 1. The two guide rails 22 are attached to the two brackets 13 of the first door 1 in a cantilevered manner. In addition, the reinforcing member 140 prevents the distal end portion of the second guide rail 22 from being greatly bent and deformed downward due to the weight of the second door body 2, and the strength of the second guide rail 22 against the bending deformation is the reinforcing member 140. Therefore, the opening and closing movement of the second door body 2 guided by the first and second guide rails 21 and 22 can be performed in a stable state as specified.

  In addition, according to this embodiment, the reinforcing member 140 and the second guide rail 22 are jointly fastened to the bracket 13 of the first door body 1 by the same coupler 141, so that these reinforcing member 140 and the second guide rail The attachment structure of 22 to the first door 1 can be a simple structure with a small number of members.

  In FIG. 19, a free stop that can stop the first door body 1 at an arbitrary position in the opening and closing direction on the opening-side bracket 13 among the two brackets 13 provided on the first door body 1. The device 150 is shown attached. A front view of the free stop device 150 is shown in FIG. 21, and a plan view is shown in FIG.

  As shown in FIG. 22, the plane U-shaped main body 151 of the free stop device 150 is coupled to the bracket 13 via an intermediate member 152, and a slider 153 is disposed inside the main body 151. As shown in FIG. 21, the slider 153 has two end portions of pins 154 provided in the opening / closing movement direction of the first door body 1 in the opening / closing movement direction of the first door body 1. Since it is inserted in the long hole 151A that is formed long, it can slide in this opening and closing movement direction. Since the feed screw shaft 155 that is rotatable at a fixed position of the main body 151 is screwed into the slider 153, the slider 153 slides by rotating the feed screw shaft 155 with a rotary tool such as a driver. .

  A pendulum member 156 is disposed inside the slider 153, and the pendulum member 156 is swingable in the opening / closing movement direction of the first door body 1 about the upper central shaft 157 shown in FIG. The lower part of the pendulum member 156 is in contact with the upright part 21 </ b> C of the first guide rail 21 that is a stationary member arranged below the pendulum member 156. The central shaft 157 is inserted into the long holes 151B and 153A formed in the main body 151 and the slider 153. The long hole 151B of the main body 151 is long in the vertical direction, and the long hole 153A in the slider 153 has a long angle with respect to the vertical direction. It is a hole.

  The pendulum member 156 is an elastic member formed entirely or partly of an elastic material such as rubber. The normal pendulum member 156 is a stand-up of the first guide rail 21 as shown in FIG. It is in contact with the upper portion 21C in an inclined posture. For this reason, as shown by a solid line in FIG. 21, the lower part of the pendulum member 156 is in a state of protruding to the closing side of the first door body 1, and the pendulum member 156 is inclined toward the closing side of the first door body 1. 2 and FIG. 5, even if the automatic moving force toward the closing side by the automatic moving means 100 described in FIGS. 2 and 5 acts on the first door 1 via the second door 2 and the interlocking mechanism 40, the stationary member The first and second door bodies 1 and 2 are prevented from moving to the closing side by the frictional force generated in the pendulum member 156 by the load from the first guide rail 21.

  In this state, a closing movement operating force is applied to the grip portion 55 shown in FIG. 1 of the second door body 2 to generate a moving force toward the closing side of the second door body 2. Then, when the moving force toward the closing side is applied to the first door body 1, the pendulum member 156 made of an elastic material is elastically compressed and deformed by the load received from the upright portion 21C of the first guide rail 21, so that the pendulum member 156 is shown in FIG. As shown by the two-dot chain line, the first door body 1 moves to the closing side while tilting and swinging to the opposite side about the central axis 157. In addition, when the first door body 1 reaches the position where the first door body 1 is desired to be stopped while the first door body 1 is moving by the automatic moving means 100, the second door body 2 is gripped. When the first door body 1 is subjected to an opening-side moving force by manual operation of the portion 55, the pendulum member 156 is elastically compressed and deformed by the load received from the upright portion 21C of the first guide rail 21 as in the case described above. Accordingly, as shown by the solid line in FIG. 21, the pendulum member 156 tilts and swings around the central shaft 157 toward the closed side, and thereby, the load from the first guide rail 21 causes the pendulum member 156 to move downward. The first door 1 can be stopped at an arbitrary position on the closing side by the generated frictional force.

  When the slider 153 is moved by the feed screw shaft 155, the central shaft 157 is moved in the vertical direction by the main body 151 and the long holes 151B and 153A of the slider 153. As a result, the upright portion of the first guide rail 21 is moved. Since the height position of the pendulum member 156 with respect to 21C is adjusted, the magnitude of the moving force of the first door body 1 necessary for elastically deforming the pendulum member 156 to change the tilt direction of the pendulum member 156 is changed. can do.

  In this embodiment, the first and second door bodies 1 and 2 are opened and closed in the same direction by the interlocking mechanism 40, the first door body 1 is a low-speed door body, and the second door body 2. Since this is a high-speed door body, unlike the previous embodiments, the first and second door bodies 1 and 2 are attached to the first door body 1 by providing the grip portion 55 on the first door body 1. Compared with the case where a moving force for moving the door manually in the opening / closing movement direction is applied, the grip portion 55 is provided on the second door body 1, thereby providing the first and second on the second door body 2. When the moving force for moving the doors 1 and 2 in the opening / closing movement direction manually is applied, the manual moving force applied to the grip portion 55 can be reduced.

  And in this embodiment, since the free stop apparatus 150 is attached to the 1st door body 1 which is a low speed door body, the 1st and 2nd door bodies 1 and 2 are stopped in the arbitrary positions of an opening-and-closing movement direction. When the pendulum member 156 of the free stop device 150 is elastically compressed and deformed and the movement of the doors 1 and 2 is restarted, the load from the first guide rail 21 necessary for elastically compressing and deforming the pendulum member 156 Can be generated by applying a small moving force to the grip portion 55 of the second door body 2. For this reason, according to this embodiment, the free stop device 150 is attached to the low-speed door body 1 of the low-speed door body 1 and the high-speed door body 2 connected by the interlock mechanism 40, and is attached to the high-speed door body 2. Therefore, the free stop device 150 is mounted in an appropriate manner in consideration of the characteristics of the door bodies 1 and 2, and these free stop devices 150 stopped by the free stop device 150. Good door body moving operability when resuming the movement of the door bodies 1 and 2 can be achieved.

  Furthermore, since the free stop device 150 only needs to be attached to the low-speed door body 1, the number of free stop devices 150 can be reduced, thereby reducing the cost of the entire sliding door device and simplifying the structure.

  Further, the free stop device 150 according to this embodiment is not attached to the door body 1A of the first door body, but the roller 32 of the first door body 1 that is suspended from the first door body 1. The bracket 13 is also used as a member for attaching the free stop device 150 to the first door body 1 because it is attached to the bracket 13 which is a member for attaching to the door body 1A. And since it is not necessary to perform processing operations such as screw hole processing for mounting the free stop device 150 on the door body main body 1A, it is only necessary to perform this processing operation on the bracket 13 which is easy to process. Can be achieved. Further, the overall structure of the first door body 1A can be simplified.

  FIG. 23 shows another embodiment of the door end portion 2D of the second door body 2.

  When the door tip portion 2D of the second door body 2 abuts on the vertical frame member 4 forming the closed side end portion of the opening portion 3 in FIG. The doors 1 and 2 are closed. The door tip 2D is formed of a rubber door tip member 160 mixed with a powdered magnet, and the vertical frame member 4 is formed of a steel plate that is a magnetic material.

  For this reason, when the 2nd door body 2 moves to the closing side by the automatic movement means 100 demonstrated in FIG.2 and FIG.5 and the door tip part 2D contact | abuts to the vertical frame member 4, the door tip member 160 has elasticity. Since the second door body 2 is made of rubber, a rebound force from the vertical frame member 4 is generated in the second door body 2, but the magnet mixed in the door-end member 160 attracts the vertical frame member 4 made of steel plate. The second door body 2 is not rebounded from the vertical frame member 4 by the suction force. Moreover, since the door-end member 160 adheres to the vertical frame member 4, the opening part 3 can be closed with high airtightness.

  FIG. 24 shows an embodiment of a door tip portion 2D of the second door body 2 having a structure different from that of FIG. This door tip 2D includes a rubber door tip member 161 in which no powdered magnet is mixed, a plate-like magnet 162 disposed behind the door tip member 161, and an end of the door body 2A. And an end member 163 that sandwiches the magnet 162 together with the door end member 161.

  Also in this embodiment, the second door body 2 is not rebounded from the vertical frame member 4 by the attractive force of the magnet 162 with respect to the steel plate vertical frame member 4, and the door-end member 161 is in close contact with the vertical frame member 4. Thus, the opening 3 can be closed with a high degree of airtightness.

  FIG. 25 shows another embodiment of the tension relaxation means 47 in the interlock mechanism 40. The tension relaxation means 47 of this embodiment is formed by an elastic member 245 made of a leaf spring, and the elastic member 245 includes a base portion 245A coupled to a seamless member 5 such as a screw by a joint 246 such as a screw, The base portion 245A has extension portions 245B and 245C provided at both ends in the opening / closing movement direction of the door bodies 1 and 2 and extending from the base portion 245A to the first door body 1 side. Both ends of the string-like member 43 are inserted into the extending portions 245B and 245C, and the abutting members 46 are attached to these both ends, whereby the string-like member 43 is extended to the extending portions 245B and 245C. It is connected to.

  In the tension relaxation means 47 according to this embodiment, when the doors 1 and 2 are opened and closed by manual operation of the gripping portion 55 of the second door 2, the opening and closing movement direction of the doors 1 and 2 on the string-like member 43. When a large tension is applied to the base portion 245A, the extension portion on the side on which the tension is applied is elastically bent and deformed with respect to the base portion 245A. Is relaxed, thereby preventing the string-like member 43 from being broken.

  FIG. 26 shows another embodiment of the tension applying means 54 in the interlocking mechanism 40. Of the two rotating bodies 41, 42 provided in the first door body 1, one rotating body 41 is disposed on the first door body 1 so as to be slidable in the opening / closing direction of the door body 1. The base member 250 is attached to the first door body 1 with a coupler 251 such as a screw so as to face the support member 248 in the opening / closing direction of the first door body 1. ing. Long bolts 252 are formed on the upright portions 248A, 250A, 250B formed at the end portion of the support member 248 on the base member 250 side and both end portions of the base member 250 in the opening / closing direction of the first door body 1. The bolt 252 is inserted, and is connected to the upright portion 248A of the support member 248 by a bolt head 252A and a tightening nut 253. Further, a resilient member 254 by a coil spring is fitted to the outer periphery of the bolt 252 between the two raised portions 250A and 250B of the base member 250, and this resilient member 254 is connected to the raised portion 250B of the base member 250. Compressed between the double nuts 255 and 256 provided on the bolt 252.

  Therefore, a sliding force toward the support member 248 due to the elastic force of the elastic member 254 is generated in the bolt 252 that is movable with respect to the rising portions 250A and 250B of the base member 250. The force acts on the support member 248. Therefore, the tension applying means 54 of this embodiment always moves the rotating body 41 of the two rotating bodies 41, 42 around which the string-like member 43 is wound to the closing side of the door body 1 by this sliding force. The structure is such that the distance between the rotating bodies 41 and 42 is always increased in an attempt to move. And this tension | tensile_strength provision means 54 supports one rotary body 41 of the two rotary bodies 41 and 42 rotatably, The 1st and 2nd door bodies 1 and 2 are attached to the 1st door body 1. As shown in FIG. A support member 248 that is slidable in the opening / closing movement direction, and an elastic member that elastically biases the support member 248 toward the opposite side of the other rotary body 42 of the two rotary bodies 41, 42. It is comprised including the elastic member 254 which is.

  The string-like member 43 has an endless loop shape that is inserted into the hole 257A of the boss member 257 provided in the second door body 2 and joined at both ends, and the string-like member is formed on both sides of the boss member 257. A stop member 51 is attached to 43. Thereby, the string-like member 43 is connected to the boss member 257. For this reason, when the second door body 2 is opened / closed by the gripping member 55 shown in FIG. 1, the first door body 1 is also opened / closed by the interlocking mechanism 40 as in the embodiments described so far.

  Moreover, in this embodiment, since the space | interval of the two rotary bodies 41 and 42 is always expanding by the tension | tensile_strength provision means 54, even if elongation by a secular change etc. arises in the string-like member 43, two pieces are produced. The tension necessary for interlocking the door bodies 1 and 2 can always be applied to the string-like member 43.

  In addition, the tension | tensile_strength provision means 54 of this embodiment may be used together with the tension | tensile_strength provision means shown by FIG.4 and FIG.7, and may be employ | adopted independently.

  INDUSTRIAL APPLICABILITY The present invention can be used for a sliding door device that has at least first and second door bodies and whose opening is opened and closed by the movement of these door bodies in the same direction.

DESCRIPTION OF SYMBOLS 1 1st door body 1A 1st door body main body 2 2nd door body 2A 2nd door body main body 2D Door tip part 3 Opening part 4 Vertical frame member 5 Unseen 13 Bracket 21 1st guide member DESCRIPTION OF SYMBOLS 1 Guide rail 22 2nd guide rail which is a 2nd guide member 31-34 Roller 31A, 31B Flange part 31C Groove part 40 Interlocking mechanism 41, 42 Rotating body 43 String-like member 47 Tension relaxation means 50 Rotating member 53 Rotating operation member Bolt 54 Tension applying means 61, 62 Lower guide means 80, 80 'Roller prevention means 84, 84' Lifting prevention parts 86, 86'87, 87 'Fall-off prevention parts 100 Automatic moving means 120 Substantially changing the length Means 130 Base member 131 Bolt which is a rotary coupling tool 134 Projection 140 Reinforcement member 142 L-shaped hook part 150 Free stop device Bonding site B cord-like member and the coupling portion between the second door of the transom and the string-shaped member which is A stationary member

Claims (6)

At least first and second door bodies and first and second guide members for guiding the door bodies in the opening and closing direction are provided, and the first and second door bodies are moved in the same direction. The opening is opened and closed by the first door body, and the opening is closed by the first and second door bodies that are displaced in the opening and closing direction when the second door body advances toward the closing side rather than the first door body. In the multiple sliding door device,
The first guide member for the first door body is attached to an immovable member that is stationary with respect to the first and second door bodies, and the second guide member for the second door body is A multiple sliding type sliding door device, wherein the sliding door device is attached to the first door body, and a distal end portion of the second guide member projects from the first door body.   2. The multiple sliding door device according to claim 1, wherein the first guide member and the second guide member are first and second guide rails, and the first and second door bodies include these guide rails. A multiple sliding type sliding door device characterized in that a roller that is slidably engaged with the roller is provided.   The multiple sliding sliding door device according to claim 1 or 2, wherein the first door body is provided with a reinforcing portion for reinforcing strength against bending deformation of the second guide member. Multiple sliding sliding door device.   4. The multiple sliding door device according to claim 3, wherein the reinforcing portion is formed by a reinforcing member having a length in the opening / closing movement direction of the first door body. Sliding door device.   5. The multiple sliding sliding door device according to claim 4, wherein a distal end portion on the closing side of the reinforcing member protrudes from the first door body.   6. The multiple sliding sliding door device according to claim 5, wherein the second guide rail and the reinforcing member are jointly coupled to the first door body.

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