JP2010127050A - Device for closing sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a device for closing a sliding door capable of certainly stopping and holding the sliding door without an impulse at a closing movement limit. <P>SOLUTION: A movable body 12 movable in parallel with the direction of movement of the sliding door, a piece 13 to be engaged pivotally supported on the movable body 12 in a horizontal rockable manner around a vertical support shaft 48 and being detachable to an engaging piece 56 on the sliding door 2A side and a spring 15 urging and holding the movable body 12 in a stroke limit on the sliding-door closing-direction side are installed to a mounting unit mounted on the sliding-door moving-path side. A rotary damper 14 rotated in interlocking with the reciprocating motion of the movable body 12 and a posture-controlling cam 39 working on a cam-driven shaft 50 fitted to the piece 13 to be engaged are further installed to the mounting unit. The posture-controlling cam 39 includes a linear path 39a and a bent path 39b. The piece 13 to be engaged is held in an inclined posture permitting the detachable operation of the engaging piece 56 by the bent path 39b while the movable body 12 is held in the stroke limit on the sliding-door opening-direction side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sliding door closing device capable of reliably stopping a sliding door that is closed without causing an impact and at a closing limit.

As this type of sliding door closing device, for example, as described in Patent Document 1, a device using a cylinder type air damper having a piston rod that moves in and out in parallel with the sliding door moving direction is known. Thus, this conventionally known sliding door closing device using an air damper is configured such that the sliding door configured to automatically close by gravity due to the inclination of the guide rail and the piston rod of the air damper with a certain separation force or more. When the sliding door is opened in the closing direction, the piston rod of the air damper is pulled out through the catching means, and the sliding door is removed from the catching means when the piston rod is pulled out to the limit. Leave and continue opening. When the sliding door closes due to gravity, the sliding door is connected to the piston rod of the air damper via the catch means during the closing stroke, and thereafter, the sliding door is braked by the load of the air damper and decelerated, It is configured to reach the closing limit.
JP 2007-77580 A

  In the conventional sliding door closing device as described above, the length of the entire device including the cylinder type air damper in the sliding door moving direction is very large, so that the closing device can be opened and closed by a sliding door, for example. When the sliding door is opened, a long and large closing device will become conspicuous when the sliding door is opened, so that the entire closing device can be installed as described in the above document. Special sliding door suspension guide rails must be used. Also, after pulling out the piston rod of the air damper to the limit by opening the sliding door, if the sliding door moves away from the piston rod, there is a possibility that the piston rod will be in a free state and the position will fluctuate unexpectedly. When the sliding door that is closing is braked and decelerated by the air damper, the piston rod contracting stroke varies and the braking and decelerating operation is not stable. In addition, the sliding door is supported by a descending guide rail in the closing direction and the sliding door is closed by gravity, and the piston rod of the air damper must be contracted by the closing power of the sliding door. It cannot be used for sliding doors.

  An object of the present invention is to provide a sliding door closing device capable of solving the conventional problems as described above, and the sliding door closing device according to claim 1 uses reference numerals of the embodiments described later. If it attaches and shows, it consists of the engagement piece 56 attached to 2A of sliding doors, and the attachment unit 9 attached to the sliding door movement path | route side, and the attachment unit 9 has the movable body 12 movable in parallel with a sliding door moving direction, The engaged body 13 is supported by the movable body 12 so as to be swingable horizontally around the vertical support shaft 48 and can be engaged with and disengaged from the engagement piece 56, and the movable body 12 is moved in the sliding door closing direction side. A spring 15 that is biased and held to the limit, a rotary damper 14 that rotates in conjunction with the reciprocating movement of the movable body 12 and applies a load to the movement of the movable body 12 in the sliding door closing direction; Set on the piece 13 A posture control cam 39 acting on the cam driven portion (cam driven shaft portion 50) is provided. The posture control cam 39 is configured so that the movable body 12 moves in the sliding door opening direction from the stroke limit on the sliding door closing direction side. A straight path portion 39a for holding the engaged piece 13 in an engagement posture with respect to the engaging piece 56, and the movable body 12 reaching the stroke limit on the sliding door opening direction side. And a folding path portion 39b that allows the engaged piece 13 to swing between the tilting posture that allows the engaging piece 56 to be engaged and disengaged and the engaging posture. The curved path portion 39b holds the engaged piece 13 in an inclined posture through the cam driven portion (cam driven shaft portion 50) of the engaged piece 13 and the biasing force of the spring 15. Shaped to hold the movable body 12 at the stroke limit on the sliding door opening direction side The engaged piece 56 of the sliding door 2A engages with the engaged piece 13 held in the tilted posture and moves in the sliding door closing direction, so that the engaged piece 13 is brought into the engaged posture. The movable body 12 is held at the stroke limit on the sliding door opening direction side while being switched.

  According to the sliding door closing device having the above configuration, the engaging piece on the sliding door side and the engaged piece of the mounting unit attached to the side of the sliding door moving path are engaged, the sliding door is in the closed position, and the mounting unit is movable. When the sliding door is opened from a state where the body is in the stroke limit on the sliding door closing direction side, the movable body is interlocked with the sliding door against the biasing force of the spring via the engaging piece and the engaged piece that are engaged with each other. And move in the sliding door opening direction. Therefore, the opening operation of the sliding door is started against the biasing force of the spring. At this time, the passive shaft of the rotary damper also rotates in conjunction with the movement of the movable body, but at the time the rotary damper passive shaft rotates in the direction of rotation, or when the movable body moves in the sliding door opening direction. If a one-way transmission means in which the rotary damper passive shaft does not rotate is interposed between the movable body and the rotary damper passive shaft, the rotary damper can be prevented from acting as a load at the start of the sliding door opening operation.

  When the movable body reaches the stroke limit on the sliding door opening direction side, the engaged piece is switched to the tilted posture by the bent path portion of the posture control cam, and the sliding door side engagement is accompanied by the opening of the sliding door. The piece is automatically detached from the engaged piece in the tilted posture. Thereafter, the sliding door can be opened together with the engagement piece without receiving resistance on the movable body side. On the other hand, the movable body attempts to return and move in the sliding door closing direction by the biasing force of the spring, but the sliding door is held via the engaged piece held in the tilted posture by the bent path portion of the posture control cam. It is held at the stroke limit on the opening direction side.

  When the open sliding door is closed, the engaging piece on the sliding door side engages with the engaged piece in the tilting posture of the movable body held at the stroke limit on the sliding door opening direction side as described above. By moving in the sliding door closing direction, the engaged piece is switched to the engaged posture and the holding of the movable body at the stroke limit on the sliding door opening direction side is released. Since it moves in the sliding door closing direction with the urging force of the spring together with the engaged piece in the engagement posture, even if the hand is released from the sliding door, the sliding door passes through the engaging piece, the engaged piece, and the movable body. Under the urging force of the spring, it automatically closes and reaches the closed position. The movement of the movable body in the sliding door closing direction at this time is transmitted to the rotary damper, a load is applied to the sliding door where the rotary damper closes, and the sliding door is braked and decelerated. The limit will be reached.

  In carrying out the present invention having the above-described configuration, specifically, as described in claim 2, the movable body 12 is supported so as to reciprocate between both ends in the length direction of the mounting unit. The engaged piece 13 is pivotally supported at the end of the sliding door closing direction side, the engaging piece 56 is attached to the back side of the side of the sliding door 2A on the closing direction side, and the mounting unit 9 is It can be attached to the ceiling surface 5 of the space opened and closed by the sliding door 2A or the lower side surface and the upper side surface of the shelf constructed in the space 5.

  According to a third aspect of the present invention, the engaging piece 56 is composed of a vertically oriented shaft member, and the engaged piece 13 includes a recessed groove portion 16 into which the engaging piece 56 is fitted. An inclined cam surface 51 is formed on the outside of the projection 13a on the sliding door opening direction side of the pair of projections forming the recessed groove portion 16, and the mounting unit 9 moves the sliding door with respect to the mounting substrate 8. The mounting unit 9 is urged and held at the front stroke limit in which the engaging piece 56 engages with the recessed groove portion 16 of the engaged piece 13. An urging means 20 can be provided.

According to a fourth aspect of the present invention, the mounting unit 9 includes the movable body 12, the engaged piece 13, the spring 15, and the rotary damper 14 between the upper and lower two members 10 and 11 that are coupled and integrated with each other. The engagement piece 13 is pivotally supported on one upper and lower side surface of the movable body 12 and protrudes from a horizontally long window portion 17 formed between the upper and lower two members 10 and 11, and is used for the posture control. The cam 39 is formed inside the member 11 on the side adjacent to the engaged piece 13 among the upper and lower members 10 and 11, and the spring 15 is movable among the upper and lower members 10 and 11. A tension coil spring that is stretched between the member 10 adjacent to the body 12 and the movable body 12 in parallel with the moving direction of the movable body 12 can be used.

  Further, according to a fifth aspect of the present invention, the engagement piece 56 is constituted by a shaft-like member vertically installed between a pair of upper and lower horizontal plate portions 55 protruding from a mounting seat plate 54 to the sliding door 2A. can do.

  According to the first aspect of the present invention, first, since the rotary damper is adopted instead of the conventional cylinder type air damper, the total length of the mounting unit attached to the side of the sliding door moving path is set to the sliding door moving direction. The movable body can be configured to be short as long as the reciprocating distance of the movable body is added to the entire length of the movable body that reciprocates. In addition, since one mounting unit mounted on the side of the sliding door moving path includes all the constituent members, and the total length of the mounting unit can be configured to be short for the above-described reason, the mounting unit can be opened and closed by the sliding door. Even if it is attached to the ceiling surface of the wall or a shelf built in the space, only a short and small mounting unit can be seen when the sliding door is opened, and a long and large device like the conventional one may stand out. Absent. Therefore, a special sliding door hanging guide rail capable of interiorizing the entire closing device as in the prior art is unnecessary, and can be implemented easily and inexpensively.

  In addition, when the movable body is moved to the stroke limit in the sliding door opening direction by opening the sliding door, the sliding door is closed by the spring via the movable body, the engaged piece pivotally supported by the movable body, and the posture control cam. When the urging force for forcibly closing to the position is automatically maintained and the sliding door is closed, the engagement piece on the sliding door side is in a predetermined position (the engaged piece in the tilted position). Since the sliding door can be automatically closed to the closed position by the urging force of the stored spring after reaching the sliding door side engaging piece), the sliding door as in the prior art. An inclined rail for giving gravity in the closing direction is unnecessary, and even a lightweight sliding door can be reliably closed to the closing limit by a spring force. In addition, at the stage of closing the sliding door with this spring force, the sliding door is braked and decelerated by the rotary damper to prevent the sliding door from colliding shockingly at the closing limit, and gently and safely stopped. Can be made.

  In addition, according to the structure of Claim 2, an attachment unit is attached to the ceiling surface of the space opened and closed with a sliding door, or the shelf erected in the said space, adjacent to the end of the sliding door side. The engaging piece on the mounting unit side can be engaged with the engaging piece attached to the back side of the side of the sliding door on the closing direction side. That is, it is not necessary to provide the engagement piece on the sliding door side at a position away from the end on the closing direction side of the sliding door in the opening direction as in the prior art. Therefore, even if the sliding door is configured by fitting a glass plate or the like into the surrounding frame material, it becomes possible to attach the engagement piece to the portion constituting the side of the frame material on the sliding door closing direction side. The versatility of the closing device of the present invention can be enhanced.

  According to the third aspect of the present invention, the movable body is held at the stroke limit in the sliding door closing direction by the biasing force of the spring, and the engaged piece pivotally supported by the movable body is used for posture control. By attaching the attachment unit in the state of being held in the engagement posture by the cam to the predetermined position beside the sliding door moving path with the sliding door opened, and then closing the sliding door to the closing limit, The engaging piece on the sliding door side moves the mounting unit backward from the front stroke limit against the biasing means via the inclined cam surface of the engaged piece, and the engaging piece is recessed in the engaged piece. When the position corresponding to the groove is reached, the urging means causes the mounting unit to move forward to the front stroke limit, so that the engagement piece on the sliding door side is in the engagement position on the mounting unit side. The insertion groove fits. That is, after attaching the mounting unit at a predetermined position beside the sliding door moving path and before closing the sliding door, the movable body is forcibly moved to the stroke limit in the sliding door opening direction against the biasing force of the spring, There is no need to manually switch to a tilted position.

  Moreover, according to the structure of Claim 4, all the structural members of a movable body, a to-be-engaged piece, a spring, and a rotary damper are comprised between the upper and lower 2 members which comprise an attachment unit, and the said upper and lower 2 Since the posture control cam is formed on one of the members and a tension coil spring is interposed between the other of the two upper and lower members and the movable body, the closing device of the present invention is compact with a minimum number of parts. Can be implemented together.

  Furthermore, according to the structure of Claim 5, the engagement piece which is strong and can be easily attached to the sliding door can be configured.

  A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a sliding door device configured by two sliding doors 2A and 2B, which opens and closes the storage space S. 3A and 3B are the closing devices of the present invention provided alongside the respective sliding doors 2A and 2B, and the respective closing devices 3A and 3B are engaged with the back surfaces of the side edges of the sliding doors 2A and 2B on the closing direction side. And a closing device main body 7 attached to the ceiling surface 5 of the storage space S so as to be adjacent to the side surface 6 of the storage space S on the sliding door closing direction side.

  Hereinafter, the closing device 3A on the left side of FIG. 1, that is, the closing device 3A that is disposed inside the sliding door 2B that is closed to the right and that is closed to the left will be described. The closing device body 7 of the closing device 3A is as follows. As shown in FIG. 2, the mounting board 8 and the mounting unit 9 are composed of an inner member 10 and an outer member 11, a movable body 12 that is housed between the inner and outer members 10, 11, It is composed of an engaging piece 13, a rotary damper 14, and a tension coil spring 15, and a laterally long window portion for projecting the recessed groove portion 16 at the tip end of the engaged piece 13 to the outside of the mounting unit 9. A laterally-notched recess 18 that forms 17 with the inner member 10 is provided.

  The mounting substrate 8 has a rectangular flat plate shape as shown in FIGS. 2B and 3, and a pair of slide guides 19 a and 19 b in the longitudinal direction are integrally projected on the lower side thereof, and on the front side. Is provided with a pair of engaged openings 21a and 21b in the left-right longitudinal direction and two attachment holes 22 for counterbore of the lower side. The slide guides 19a and 19b are in the shape of a rectangular column extending in the front-rear width direction in parallel with the mounting substrate 8, and the rear ends thereof are integrally connected to the mounting substrate 8 via the vertical column portions 23a and 23b. . The urging means 20 is composed of a pair of elastic tongues 24a and 24b, and each elastic tongue 24a and 24b is a band that is integrally connected to the front side of the mounting substrate 8 at the right end in the longitudinal direction. It is a plate-like one, and the other end side extends to the left in parallel with the mounting substrate 8 and away from the front side of the mounting substrate 8.

  The inner member 10 of the mounting unit 9 has a rectangular flat plate shape as shown in FIGS. 2B and 4, the rear side and the left side in the left-right longitudinal direction are open on the upper surface, and the mounting substrate 8 is formed in the recess 25 so that the vertical pillars 23a and 23b of the slide guides 19a and 19b of the mounting substrate 8 are formed on the inner member 10. Notch recesses 26a and 26b loosely fitted from the rear side, two stopper pieces 27a and 27b fitted to the engaged openings 21a and 21b of the mounting board 8, and the mounting hole 22 of the mounting board 8 Two through holes 28 and four counterbore holes 29 for screw connection with the outer member 11 are provided. Below the thick front side portion of the inner member 10, a groove for spring interior is provided. 30 of the inner member 10 Formed along the right longitudinal direction, a spring locking column portion 31 is integrally projected downward at the left end of the spring interior concave groove portion 30. The rotary damper pressing portion 32 is integrally protruded downward. A ring-shaped projecting portion 28a projecting from the lower surface of the inner member 10 is provided integrally and concentrically at the lower end of the through hole 28. The stopper pieces 27a and 27b are formed in the front-rear width direction of the inner member 10. It has a long elastic tongue-like shape, and is integrally connected to the inner member 10 at the rear end, and has a check protrusion 33 protruding above the upper surface of the recessed portion 25 on the front end upper surface.

  The outer member 11 of the mounting unit 9 is a rectangular flat plate having the same size as that of the inner member 10 as shown in FIGS. 2B and 5, and a pair of left and right longitudinal directions of the outer member 11 are disposed on the upper surface side thereof. The slide guide concave grooves 34a and 34b are formed in the front-rear width direction so that the rear side of the outer member 11 is opened, and two through holes 35 that match the two through holes 28 of the inner member 10 are formed. And four screw coupling pilot holes 36 that match the four counterbore holes 29 are provided. Further, on the upper surface side of the outer member 11, there is a movable body guide groove portion 37 formed along the front side of the outer member 11 and a rotary damper mounting concave portion 38 having a length that extends over the entire length of the outer member 11. An attitude control cam groove 39 and an engaged piece guide groove 40 of the engaged piece 13 are formed below the left half of the movable body guide groove portion 37 provided.

  A concave step portion 35a is formed on the inner side of the upper ends of the two through-holes 35 to which a ring-shaped protrusion 28a formed at the lower end of the through-hole 28 on the inner member 10 side is fitted. Further, the front side wall portion of the almost half area on the left side of the movable body guide groove portion 37 is cut away by a horizontally elongated recess portion 18 that forms a horizontally elongated window portion 17 with the inner member 10, and the movable body guide groove portion 37. A lower movable body guide wall 41 that guides the movable body 12 to and from the front side wall portion 11a positioned on the front side of the movable body guide groove 37 is integrally provided on the rear side of the right half of the area. Has been. On the bottom surface of the rotary damper mounting recess 38, a pair of left and right positioning projections 38a are projected. The posture control cam groove 39 includes a straight path portion 39a from the left end to the right end, and a bent path portion 39b continuously bent from the right end to the rear end of the straight path portion 39a. The path portion 39b is formed to be wider as it is away from the straight path portion 39a, and the inclined left side surface 39c is inclined so as to be displaced to the left side as it is away from the straight path portion 39a.

  2B and 6, the movable body 12 is a rod-like member having a length longer than half of the entire length of the movable body guide groove portion 37 of the outer member 11, and is provided on the lower surface of the left end in the length direction. The engaged piece shaft support hole 42, a lower slide guide integrally projecting downward in a region from a position separated from the left end in the length direction by a region supporting the engaged piece 13 to the right end Part 43, rack gear part 44 integrally projecting from the rear side over the region of the required length from the left end, upper slide guide part 45 projecting upward from the upper surface over the entire length in the length direction, this upper slide guide part A spring guide groove 46 formed on the upper surface over the substantially entire length in the length direction on the front side of 45, and a spring locking column 47 projecting integrally upward at the right end of the spring guide groove 46. Have .

  As shown in FIGS. 2B and 7, the engaged piece 13 having the tip recessed groove portion 16 has a support shaft 48 protruding integrally from the rear end portion, and is concentric with the support shaft 48. The slide guide shaft 49 is integrally projected downward, the cam driven shaft portion 50 is integrally projected downward on the right side, and a pair of left and right projections forming the front recessed groove portion 16 opened at the front end side. The inner and right short projections 13a are formed on the inclined cam surface 51 on the outer side (right side) so as to become thinner toward the tip.

  As shown in FIGS. 2B and 8, the rotary damper 14 has a pair of left and right wings that have a pinion gear 52 attached to a passive shaft 14a that protrudes upward from the upper surface of the main body, and protrudes integrally on both sides in the diameter direction from the lower end of the main body. A notch groove 53a is formed in the plate portion 53 from its tip.

  As shown in FIGS. 1 and 9, the engaging tool 4 that forms a pair with the closing device body 7 includes a mounting seat plate 54 that is long in the vertical direction and provided with a mounting hole 54 a, and an upper end portion of the mounting seat plate 54. A pair of upper and lower horizontal plate portions 55 projecting on the same side, and an engagement piece 56 made of a round shaft-like member erected vertically between both horizontal plate portions 55. As shown in FIG. 1, since the left sliding door 2A slides in the left-right direction inside the right sliding door 2B, the engaging device 4 of the closing device 3A for the left sliding door 2A is shown in FIG. As shown in FIGS. 9A and 9B, the distance between the mounting surface of the mounting seat plate 54 and the engagement piece 56 is made as short as necessary, whereas the closing device for the right sliding door 2B. As shown in FIGS. 1, 9 </ b> C, and D, the engaging tool 4 of 3 </ b> B has a distance between the mounting surface of the mounting seat plate 54 and the engaging piece 56, and the sliding space of the sliding door 2 </ b> A is inside the sliding door 2 </ b> B. It is configured to grow as much as it exists. Specifically, the thickness of the mounting seat plate 54 is changed between the engaging tool 4 of the closing device 3A and the engaging tool 4 of the closing device 3B. In addition, since the closing device main body 7 of the closing device 3B is merely configured to be bilaterally symmetric with the closing device main body 7 of the closing device 3A, illustration and description of the detailed structure are omitted.

  Next, the assembly of the closing device body 7 will be described with reference to FIGS. 2 and 10 to 15. The support shaft 48 of the engaged piece 13 is fitted into the engaged piece shaft support hole 42 of the movable body 12. In the state where the engaged piece 13 is arranged below the left end of the movable body 12, the lower slide guide portion 43 of the movable body 12 is connected to the front side wall portion 11 a of the outer member 11 and the movable body guide wall. The sliding guide shaft 49 of the engaged piece 13 is fitted into the engaged piece guide groove 40 of the outer member 11, and the cam driven shaft portion 50 is outside. The members 11 are fitted in the straight path portions 39a in the posture control cam grooves 39, respectively. At this time, the tip recessed groove portion 16 of the engaged piece 13 protrudes outward (front side) from the horizontally elongated notched recess 18 of the outer member 11. The rotary damper 14 is fitted into the rotary damper mounting recess 38 of the outer member 11. At this time, the notch grooves 53 a of the pair of left and right blades 53 at the lower end of the rotary damper 14 are formed on the bottom surface of the rotary damper mounting recess 38. The rotary damper 14 is positioned by fitting with the pair of left and right positioning projections 38a.

  The inner member 10 is stacked on the outer member 11. At this time, one end of the tension coil spring 15 is engaged with the spring locking column portion 31 on the inner member 10 side, and the other end of the tension coil spring 15 is engaged. By engaging the end with the spring locking column portion 47 on the movable body 12 side, the tension coil spring 15 is accommodated in the spring interior concave groove portion 30 of the inner member 10 and the spring guide concave portion of the movable body 12. With the lower side loosely fitted in the groove 46, the movable body 12 is urged and held at the left end of the movable body guide groove portion 37 by the initial tensile stress. On the other hand, when the inner member 10 is overlaid on the outer member 11, the lower end ring-shaped protrusions 28a of the two through holes 28 on the inner member 10 side become the upper end recessed step portions 35a of the two through holes 35 on the outer member 11 side. By fitting, the inner member 10 and the outer member 11 are accurately positioned, and the pair of left and right rotary damper pressing portions 32 of the inner member 10 are fitted into the rotary damper mounting recesses 38 of the outer member 11. The rotary damper 14 is inserted into the rotary damper mounting recess 38 on both the left and right sides of the rotary damper 14, and the tip of the rotary damper 14 presses the pair of left and right blades 53 of the rotary damper 14 to fix the rotary damper 14. In this state, a fastening tapping screw 57 is screwed into the four screw coupling lower holes 36 of the outer member 11 from the upper side of the inner member 10 via the four counterbore holes 29 to couple the inner member 10 and the outer member 11 together. The mounting unit 9 is completed by integrating.

  In the assembled mounting unit 9, the upper slide guide portion 45 of the movable body 12 is in sliding contact with the rear side surface of the spring interior concave groove portion 30 of the inner member 10. Further, a horizontally elongated window portion 17 is formed between the inner member 10 and the outer member 11 by a horizontally elongated notch recess 18 of the outer member 11, and the distal recessed groove portion 16 of the engagement piece 13 extends from the horizontally elongated window portion 17. Protrudes forward. At this time, since the movable body 12 is urged and held at the left end of the movable body guide groove portion 37 by the tensile force of the tension coil spring 15 as shown in FIG. 11, the rack gear portion 44 is, as shown in FIG. The upper end of the rotary damper 14 is located on the left side from the pinion gear 52. The engaged piece 13 pivotally supported at the left end (end on the sliding door closing direction side) of the movable body 12 is located at the left end of the laterally long window portion 17 of the mounting unit 9, and the engaged piece Since the cam follower shaft portion 50 of 13 is fitted in the linear path portion 39a of the posture control cam groove 39 on the mounting unit 9 side, the cam follower shaft portion 50 cannot rotate around the support shaft 48 and the slide guide shaft 49. The tip recessed groove 16 is held in a posture that is perpendicular to the moving direction of the movable body 12.

  Next, in order to assemble the mounting substrate 8 on the mounting unit 9, that is, in the upper concave portion 25 of the inner member 10, the pair of left and right slide guides 19 a and 19 b of the mounting substrate 8 are connected to the inner member 10. It is inserted from the rear side into a prismatic hole in the left-right width direction formed by the lower side surface and the pair of left and right slide guide concave grooves 34a, 34b of the outer member 11. At this time, the right side of the mounting substrate 8 is in sliding contact with one side vertical surface 25b formed only on the right side of the upper concave portion 25 of the inner member 10, and the vertical column at the rear end of the slide guides 19a and 19b. The parts 23a and 23b are loosely fitted into the notch recesses 26a and 26b of the inner member 10. In the process of inserting the slide guides 19 a and 19 b into the slide guide concave grooves 34 a and 34 b, the check protrusions 33 at the tips of the pair of left and right stopper pieces 27 a and 27 b of the inner member 10 are attached to the mounting substrate 8. By being pushed down on the lower side, the stopper pieces 27a and 27b bend downward against elasticity, and the slide guides 19a and 19b are allowed to be inserted into the slide guide concave grooves 34a and 34b. When the slide guides 19a and 19b are inserted into the slide guide concave grooves 34a and 34b to a predetermined depth, the stopper pieces 27a and 27b are elastically returned upward, and the check projections 33 are paired on the left and right sides of the mounting substrate 8. In this case, the pair of left and right elastic tongues 24a and 24b constituting the biasing means 20 of the mounting board 8 are recessed in the inner member 10. It is pressed against the front vertical surface 25a of the portion 25, and the mounting substrate 8 is pushed backward by the elastic restoring force of the elastic tongue pieces 24a, 24b, but the stopper pieces 27a, The check protrusion 33 of 27b abuts against the front inner surface of the engaged openings 21a and 21b, and prevents the mounting substrate 8 from coming out rearward from the recessed portion 25 of the inner member 10. There.

  In the closing device main body 7 assembled as described above, as shown in FIG. 13, the two through holes 28 of the inner member 10 and the two of the outer member 11 are directly below the two mounting holes 22 of the mounting substrate 8. As shown in FIG. 17, the through holes 35 are concentrically positioned and the two mounting holes 22 of the mounting substrate 8 are opened on the lower surface of the closing device body 7 (the lower surface of the outer member 11). In addition, the mounting board 8 of the closing device body 7 in each of the closing devices 3A and 3B is attached by the mounting screws 58 inserted upward into the two mounting holes 22 of the mounting board 8 using these through holes 28 and 35. Can be attached to the ceiling surface 5 of the storage space S that is opened and closed by the sliding door device 1 so as to be adjacent to the side surface 6 on the closing direction side of the sliding doors 2A and 2B. In addition, the engagement tool 4 in each of the closing devices 3A and 3B is attached to the back surface side of the side in the closing direction of the sliding doors 2A and 2B using the attachment holes 54a of the attachment seat plate 54 and the attachment screws. The attachment positions of the closing device body 7 (mounting board 8) and the engagement tool 4 are such that the engagement pieces 56 of the engagement tool 4 and the closing device body 7 are closed when the sliding doors 2A and 2B are closed as will be described later. This is the position at which the sliding door 2A, 2B is held in the closed position by engaging with the engaged tool 13 at the stroke limit in the sliding door closing direction side or the position just before it.

  Since the closing device 3A that closes the sliding door 2A and the closing device 3B that closes the sliding door 2B are the same in operation only when the sliding movement directions of the sliding doors 2A and 2B are the opposite directions, the following description will be made with reference to FIGS. 21, the operation of the closing device 3A on the sliding door 2A side will be described.

  In the closing device main body 7 attached to the ceiling surface 5 of the storage space S as described above, as shown in FIG. 16, the engaged piece 13 is at the stroke limit on the closing direction side of the sliding door 2A, and the attachment unit The front recessed groove portion 16 projects from the horizontally long window portion 17 to the front side in a direction perpendicular to the moving direction of the sliding door 2A. At this time, the inclined cam surface 51 of the short projection 13a on the right side of the engaged piece 13 also protrudes to the front side of the mounting unit 9, and the tip recessed groove 16 and the inclined cam surface 51 of the engaged piece 13 are connected to the sliding door. It is located in the movement path of the engagement piece 56 on the 2A side. In this state, the sliding door 2A is set on the sliding door guide at an appropriate position away from the closing device body 7 in the sliding door opening direction side (an appropriate position where the engaging tool 4 attached to the sliding door 2A side does not interfere with the closing device body 7). Then, the sliding door 2A is closed.

  When the sliding door 2A to be closed reaches just before the closing limit position, the engagement piece 56 of the engagement tool 4 is engaged on the closing device main body 7 (mounting unit 9) side as shown by a virtual line in FIG. Since the cam 13 is in contact with the inclined cam surface 51 of the piece 13, the cam follower shaft portion 50 is fitted to the linear path portion 39a of the posture control cam groove 39 by forcibly closing the sliding door 2A. The entire mounting unit 9 is moved backward with respect to the mounting substrate 8 via the inclined cam surface 51 of the engaged piece 13 that cannot rotate around the shaft 48 and the slide guide shaft 49. That is, the mounting unit 9 is guided by the slide guides 19a and 19b on the mounting substrate 8 side, and the elastic tongue of the urging means 20 on the mounting substrate 8 side on the front vertical surface 25a of the recessed portion 25 of the inner member 10. While the pieces 24a and 24b are deformed against elasticity, the pieces 24a and 24b are slid away from the sliding door 2A toward the rear side at right angles and horizontally. When the engaging piece 56 on the sliding door 2A side gets over the short protrusion 13a on the right side of the engaged piece 13, the mounting unit 9 that has moved backward is elastic of the elastic tongues 24a and 24b on the mounting substrate 8 side. Due to the return force, it moves forward with respect to the mounting substrate 8 so that the stopper pieces 27a, 27b on the inner member 10 side contact the inner surfaces of the front ends of the engaged openings 21a, 21b on the mounting substrate 8 side. As a result, as shown in FIG. 19, the leading recessed groove portion 16 of the engagement piece 13 on the mounting unit 9 side is fitted into the engagement piece 56 on the sliding door 2A side, as shown in FIG. 2A also reaches the closing limit.

  When the tip recessed groove 16 of the engaged piece 13 is fitted into the engaging piece 56 on the sliding door 2A side by the forward movement of the mounting unit 9, the cylindrical peripheral surface of the engaging piece 56 made of a round shaft member. The movable body 12 is configured to retreat slightly toward the sliding door opening direction side against the pulling force of the tension coil spring 15 by pressing against the tip of the protruding portion 13a of the engaged piece 13 against the sliding door 2A. When in the closed movement limit (the position in contact with the side surface 6 or the door stop attached to the side surface 6), the urging force of the tension coil spring 15 is the movable body 12, the engaged piece 13, and the engaging piece 56. The sliding door 2A is preferably transmitted to the sliding door 2A so that the sliding door 2A is reliably held at the closing limit without playing in the opening / closing direction at the closed position.

  When the sliding door 2A at the closing limit is opened, the engaged piece 13 on the mounting unit 9 side is pulled in the sliding door opening direction via the engaging piece 56 of the engaging tool 4. Since the cam follower shaft portion 50 is fitted in the linear path portion 39a of the posture control cam groove 39 on the mounting unit 9 side, the cam follower shaft portion 50 cannot rotate around the support shaft 48 and the slide guide shaft 49. As a result, the movable body 12 moves in the opening direction integrally with the sliding door 2 </ b> A against the urging force of the tension coil spring 15 through the engaged piece 13. Therefore, the urging force of the tension coil spring 15 becomes resistance to the opening operation of the sliding door 2A. Further, when the movable body 12 moves slightly in the sliding door opening direction, the rack gear portion 44 on the movable body 12 side and the pinion gear 52 of the rotary damper 14 are engaged, and the passive shaft 14a of the rotary damper 14 rotates. If the rotary damper 14 that is unidirectionally operated so that no damper action is generated in the rotational direction at this time is used, the rotary damper 14 does not substantially become a resistance during the opening operation of the sliding door 2A.

  The movable body 12 that moves in the same direction against the urging force of the tension coil spring 15 in conjunction with the opening of the sliding door 2 </ b> A is an outer member whose end portions on the moving direction side are located on both sides of the movable body guide groove 37. 11 is sandwiched between the front side wall portion 11a and the movable body guiding wall portion 41, and the end portion that pivotally supports the engaged piece 13 is engaged with the slide guide shaft 49 of the engaged piece 13 Since the cam follower shaft portion 50 of the engaged piece 13 is fitted to the linear path portion 39a of the posture control cam groove 39, the covered guide portion 40 is engaged. It is guided by the engagement piece guide groove 40 and the straight path portion 39a of the posture control cam groove 39, and moves in the sliding door opening direction integrally with the sliding door 2A.

  Then, when the sliding door 2A opens and the movable body 12 that moves integrally reaches the stroke limit in the sliding door closing direction, the engaged piece that is pivotally supported by the movable body 12 as shown in FIG. The cam follower shaft portion 50 reaches the end of the linear path portion 39a of the posture control cam groove 39, and the engagement piece 56 on the sliding door 2A side is moved by the subsequent opening of the sliding door 2A. Through which the cam follower shaft portion 50 enters the bent path portion 39b of the attitude control cam groove 39, that is, from the sliding door 2A to the rear side. As the engagement piece 13 rotates, the engagement piece 56 on the sliding door 2A side is engaged as shown in FIG. 20 as the engagement piece 13 rotates. It escapes from the inside of the tip recessed groove 16 of the combined piece 13, and only the sliding door 2A is engaged. It will continue opening motion with ingredients 4.

  As shown in FIG. 20, when the engaged piece 13 rotates and the engaging piece 56 on the sliding door 2 </ b> A side escapes from the inside of the tip recessed groove portion 16 of the engaged piece 13, the engaging piece on the sliding door 2 </ b> A side. Since the pulling force in the sliding door opening direction applied from 56 to the movable body 12 via the engaged piece 13 disappears, the movable body 12 moves the tension coil spring 15 from the stroke limit in the sliding door opening direction to the sliding door closing direction. At this time, the cam follower shaft portion 50 of the engaged piece 13 which is about to move integrally with the movable body 12 is inclined in the bent path portion 39b of the posture control cam groove 39. When the cam driven shaft 50 enters the bent path portion 39b in the engaged piece 13 due to the pressure contact between the inclined left side surface 39c and the cam driven shaft portion 50 because it contacts the left side surface 39c. The rotational force of the rotation direction of the The shaft portion 50 is held at the end portion of the bent path portion 39b to prevent the return movement of the movable body 12, and the engaged piece 13 is engaged from the inside of the front recessed groove portion 16 on the sliding door 2A side. The tilted posture is maintained when the piece 56 has escaped.

  When the opened sliding door 2A is closed, the movable body 12 in the mounting unit 9 is held at the stroke limit in the sliding door opening direction as described above, and the engaged piece 13 is located in the recessed groove portion 16 at the tip. Since the engagement piece 56 on the sliding door 2A side escapes from the tilted position when the sliding door 2A reaches a position just before the closing limit, the engagement piece 56 on the sliding door 2A side tilts. The engaging piece 56 naturally moves into the recessed groove portion 16 at the tip of the engaging piece 13 and the engaging piece 56 moves in the sliding door closing direction with the subsequent closing of the sliding door 2A. The engaged piece 13 is rotated around the support shaft 48 and the slide guide shaft 49 from the tilted posture to the original engaged posture through the tip recessed groove portion 16. At this time, the cam follower shaft portion 50 of the engaged piece 13 simply moves along the inclined left side surface 39c of the bent path portion 39b in the posture control cam groove 39, and the support shaft 48 and the slide guide shaft 49 are moved. It is desirable to form the inclined left side surface 39c so that the position hardly changes.

  In conjunction with the closing movement of the sliding door 2 </ b> A, the engaged piece 13 rotates from the tilted position to the original engaged position, whereby the cam driven shaft portion 50 of the engaged piece 13 becomes the posture control cam groove 39. When moving from the bent path portion 39b to the straight path portion 39a, the holding action of the movable body 12 by the cam driven shaft portion 50 and the inclined left side surface 39c of the bent path portion 39b is eliminated, and the movable body 12 is pulled. The coil spring 15 can be moved in the sliding door closing direction by the urging force of the coil spring 15. Therefore, after that, the sliding door 2A receives the urging force of the tension coil spring 15 through the movable body 12, the engaged piece 13, and the engaging piece 56. Therefore, even if the hand is released from the sliding door 2A, the movable body 12A. The sliding door automatically closes in conjunction with the return movement to the stroke closing direction stroke limit. On the other hand, the movement of the movable body 12 at this time is transmitted from the rack gear portion 44 to the passive shaft 14 a of the rotary damper 14 via the pinion gear 52, and the rotary damper 14 acts and the urging force of the tension coil spring 15 causes the sliding door. Since the movable body 12 moving in the closing direction and the sliding door 2A are braked and decelerated, the sliding door 2A does not collide with the closing limit vigorously by the urging force of the tension coil spring 15, and the closing limit is smoothly closed. It will close at.

  The right side closing device 3B corresponding to the sliding door 2B also acts on the outside (right side) sliding door 2B in the same manner as the closing device 3A. Can be made. The sliding doors 2A, 2B are opened by the engagement tool 4 provided inside the side of the outer sliding door 2B on the closing direction side and the side of the inner sliding door 2A on the opening direction side. It will be limited by contact. Further, the closing device body 7 is attached to the ceiling surface 5 of the storage space S. When an intermediate shelf is erected in the storage space S in a fixed state, it is closed to the lower side or upper side of the shelf. The apparatus main body 7 can also be attached.

  The sliding door closing device of the present invention can be implemented as described above, but is not limited to the above embodiment. For example, it can be used for a sliding door device composed of a single sliding door, but the mounting unit 9 may be fixed in position. In this case, the engaging piece 56 of the engaging tool 4 is inserted into the tip recessed groove 16 of the engaged piece 13 projecting from the mounting unit 9 previously attached at a fixed position in the stroke limit in the sliding door closing direction. The sliding door is set to the sliding door guide so as to be fitted, or the engaged piece 13 is manually moved to the stroke limit in the sliding door opening direction, and the engaged piece 13 is switched to the tilted posture and held. In this state, by closing the sliding door set on the sliding door guide at a position away from the mounting unit 9, the engaging piece 56 of the engaging tool 4 is fitted into the tip recessed groove 16 of the engaged piece 13. You can combine them. In such a configuration, the mounting unit 8 is omitted and the mounting unit 9 is directly mounted on the ceiling surface 5 or the like, or the mounting substrate 8 previously mounted is as in the above embodiment. The mounting unit 9 can be inserted into the rear side so that both can be automatically engaged and integrated at a fixed position, and the biasing means 20 and the inclined cam surface 51 of the engaged piece 13 can be omitted. it can.

Fig. A is a partially cutaway plan view of the entire sliding door device, Fig. B is a cross-sectional view taken along the line A-A of Fig. A, and Fig. C is a cross-sectional view taken along the line B-B of Fig. A. Fig. A is a perspective view of the left closing device body, and Fig. B is an exploded perspective view of the closing device body. A is a plan view of a mounting board for the left side closing device body, B is a front view of the mounting board, C is a left side view of the mounting board, and D is a cross-sectional view taken along line CC in FIG. The figure and the E figure are the DD sectional views taken on the line A. A is a plan view of the inner member of the left closure device body, B is a bottom view of the inner member, C is a cross-sectional view taken along line EE of FIG. A, and D is a cross-sectional view taken along line FF of FIG. Figures E and G are cross-sectional views taken along the line GG of FIG. Fig. A is a plan view of the outer member of the left closing device body, Fig. B is a front view of the outer member, Fig. C is a rear view of the outer member, Fig. D is a cross-sectional view taken along line II of Fig. A, and Fig. E. Is a sectional view taken along line JJ in FIG. A, FIG. F is a sectional view taken along line KK in FIG. A, and FIG. G is a sectional view taken along line LL in FIG. A is a plan view of the movable body of the left closing device body, B is a front view of the movable body, C is a bottom view of the movable body, D is a cross-sectional view taken along line MM in FIG. Is a left side view of the movable body, and FIG. F is a right side view of the movable body. Fig. A is a plan view of an engaged piece of the left closing device body, Fig. B is a bottom view of the engaged piece, and Fig. C is a front view of the engaged piece. Fig. A is a plan view of the rotary damper, and Fig. B is a front view of the rotary damper. Fig. A is a perspective view of the engaging member of the left closing device, Fig. B is a transverse plan view of the engaging device, Fig. C is a perspective view of the engaging device of the right closing device, and Fig. D is a transverse plane of the engaging device. FIG. It is a vertical front view in the rotary damper position of the assembled left side closing device main body. It is a vertical front view in the movable body position of the left closing device main body. It is a vertical side view in the slide guide position of the left side closing device main body. It is a vertical side view in the stopper piece position of the left side closing device main body. It is a vertical side view in the rotary damper position of the left side closing device main body. It is a vertical side view in the to-be-engaged piece position of the left closing device main body. It is a cross-sectional top view explaining the start condition of the operation | work which combines the engagement tool by the side of a sliding door with respect to the attached left side closing apparatus main body. It is a partially longitudinal side view which shows a left side closing apparatus. It is a cross-sectional top view explaining the last step of the operation | work which combines the engagement tool by the side of a sliding door with respect to the attached left side closing apparatus main body. It is a cross-sectional top view which shows the left side closing apparatus when a sliding door exists in a closed state. It is a cross-sectional top view explaining a state when the engaging tool of a sliding door exists in the position immediately before engaging with a left side closing device immediately after leaving the left side closing device. It is a cross-sectional top view explaining a state when it exists in the position immediately after the engaging tool of a sliding door engages with the left side closing device, or just before detaching | leave from the left side closing device.

Explanation of symbols

S Storage space 1 Sliding door device 2A, 2B Sliding door 3A, 3B Closing device 4 Engaging tool 7 Closing device body 8 Mounting substrate 9 Mounting unit 10 Inner member 11 Outer member 12 Movable body 13 Engaged piece 14 Rotary damper 15 Tensile coil spring 16 Indented groove 17 at the tip 17 Horizontal window 19a, 19b Slide guide 20 Energizing means 21a, 21b Engagement opening 24a, 24b Elastic tongue 25 Recessed recess 27a, 27b Stopper piece 30 Spring interior recessed groove 31 and 47 Spring locking column part 32 Rotary damper pressing part 34a and 34b Sliding guide concave groove part 37 Movable body guide groove part 38 Rotary damper mounting concave part 39 Attitude control cam groove 39a Straight path part 39b Bending path part 39c Inclined left side surface 40 engaged piece guide groove 41 movable body guide wall 42 engaged piece Journaling holes 43 lower slide guide portion 44 the rack gear portion 45 the upper slide guide portion 48 shaft 49 slide guide shaft 50 cam follower shaft portion 51 inclined cam surface 52 the pinion gear 56 engaging piece 57 fastening the tapping screw 58 mounting screws

Claims (5)

  It consists of an engagement piece attached to the sliding door and an attachment unit attached to the side of the sliding door movement path. The attachment unit includes a movable body movable in parallel to the sliding door movement direction, and a vertical support shaft around the movable body. An engaged piece that is supported in a horizontally swingable manner and is detachable from and engageable with the engaging piece, a spring that biases and holds the movable body to a stroke limit on the sliding door closing direction side, and a reciprocating movement of the movable body A rotary damper that rotates in conjunction and applies a load to the movement of the movable body in the sliding door closing direction, and a posture control cam that acts on a cam follower provided in the engaged piece; This posture control cam holds the engaged piece in the engagement posture with respect to the engagement piece when the movable body is between the stroke limit on the sliding door closing direction side and immediately before the stroke limit on the sliding door opening direction side. And straight path When the movable body reaches the stroke limit in the sliding door opening direction, the folding piece allows the engaged piece to swing between the tilting posture that allows the engagement piece to be engaged and disengaged and the engagement posture. A bent path portion, and the bent path portion holds the engaged piece in a tilted posture via the cam follower portion of the engaged piece and the biasing force of the spring, and also holds the movable body. When the engagement piece of the sliding door is engaged with the engaged piece that is formed so as to be held in the stroke limit on the sliding door opening direction side and is held in a tilted posture and moved in the sliding door closing direction, A sliding door closing device configured to switch the engaged piece to the engaged posture and to release the holding of the movable body at the stroke limit on the sliding door opening direction side.   The movable body is supported so as to be reciprocally movable between both ends in the length direction of the mounting unit, and the engaged piece is pivotally supported at an end portion of the movable body on the sliding door closing direction side, and the engaging piece is The attachment unit is attached to a back surface side of a side of the sliding door in the closing direction side, and the attachment unit is attached to a ceiling surface of a space opened and closed by the sliding door or a shelf built in the space. Sliding door closing device.   The engaging piece is composed of a vertically oriented shaft member, and the engaged piece includes a recessed groove portion into which the engaging piece is fitted, and a pair of protrusions forming the recessed groove portion, An inclined cam surface is formed outside the protrusion on the sliding door opening direction side, and the mounting unit is attached to the mounting substrate so as to be capable of lateral movement within a certain range in the horizontal front-rear direction perpendicular to the sliding door moving direction. The sliding door closing device according to claim 1 or 2, further comprising a biasing means for biasing and holding the mounting unit at a front stroke limit in which the engagement piece engages with the recessed groove portion of the engaged piece.   The mounting unit is configured to hold the movable body, the engaged piece, the spring, and the rotary damper between two upper and lower members that are coupled and integrated with each other. The posture control cam is supported on one side surface and protrudes from a horizontally long window formed between the upper and lower two members, and the posture control cam is located on the inner side of the upper and lower two members adjacent to the engaged piece. The spring is a tension coil spring that is stretched in parallel with the moving direction of the movable body between the movable body and a member adjacent to the movable body among the two upper and lower members. The closing device for a sliding door according to any one of claims 1 to 3.   The said engagement piece is comprised from the shaft-shaped member erected perpendicularly between a pair of upper and lower horizontal board parts protrudingly provided from the mounting seat board to a sliding door, In any one of Claims 1-4. The sliding door closing device described.

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