JP4426514B2 - Sliding door closing support device - Google Patents

Description

  The present invention relates to a sliding door closing support device capable of closing a sliding door panel close to the closed end without requiring manual operation.

  It is known in Patent Document 1 to assist the closing of the door panel near the closing end of the opening / closing stroke. There, a slider that is urged to move in the closing direction by a tension spring is provided on the door frame. After the door panel is closed to a predetermined position, the door panel and slider are connected to pull the door panel. It can be closed by the biasing force of the spring. The slider can be displaced between the connection standby posture and the operation posture, and when the door panel is opened, the slider is moved along with the connection pin against the elasticity of the tension spring and is held in the connection standby posture at the previous predetermined position.

  In the present invention, an inclined rail is used as a power source for closing the door panel. A closing mechanism using such an inclined rail is known in Patent Document 2. This is a self-closing type sliding door, and the door panel can be returned from an arbitrary open position to a closed position by guiding the suspension vehicle with a guide rail that is inclined downward toward the closed end. In addition, since this kind of self-closing sliding door cannot hold | maintain a door panel position in arbitrary open positions, the use is restricted, for example to the sliding door of a hospital room or a hospital corridor.

Japanese Patent Laying-Open No. 2003-214023 (paragraph number 0034, FIG. 10) JP 2001-182425 A (paragraph number 0011, FIG. 2)

  The closing assist device of Patent Document 1 can automatically close the door panel to a predetermined position by manual operation and thereafter can be automatically closed by the urging force of the tension spring, so that the trouble of closing the door panel to the end can be saved. it can. In addition, when the door panel is operated to open beyond a predetermined range near the closed end, the door panel can be held at an arbitrary open position, so that it can be used as a sliding door for a general house or a sliding door for a walk-in closet.

  However, since the door panel is closed with a tension spring, it is inevitable that the door panel accelerated toward the closed position collides with the door frame. For example, when closing the door panel vigorously, a closing operation force is added to the urging force of the tension spring, so that the door panel collides with the door frame and bounces back, and a loud collision sound is generated. You may inadvertently get injured with your fingertip between the door panel and the door frame.

  Since it is necessary to provide a slider or a spring between the guide rail and the door panel, the closing support mechanism and the rail structure are complicated. Since it is necessary to adjust the spring force or replace the spring every time the size and weight of the door panel are different, extra work is required for adjustment work during construction. When the slider switches to the connected standby position or the operating position, an irritating contact sound is generated, and when the door panel is opened, there is a feeling of resistance due to the tension of the spring, and there is a problem in smoothness of operation compared to a normal sliding door There is. When the door panel is opened and closed violently, the spring may get entangled with surrounding structures.

  In the self-closing sliding door of Patent Document 2, the entire guide rail is inclined to guide the traveling of the suspension vehicle toward the closed end side. For this reason, it is unavoidable that the rail stand that accommodates the guide rail, the suspension vehicle, and the like is increased in size, and it is inevitable that the opening size of the door frame is specialized when supporting a normal size door panel. In some cases, it is necessary to adjust and change the inclination angle of the guide rail and the braking force of the damper according to the weight of the door panel, and the construction tends to be complicated.

  The object of the present invention is that when the door panel is closed to a predetermined position, the door panel can be closed by its own weight, and even if the door panel is closed drastically, the door panel is attached to the door frame. Prevents collisions and reliably prevents the occurrence of collision noise. In addition, even when the door panel is closed and operated with the fingertips on the panel side end face, the fingertips are not injured. The object is to provide an excellent sliding door closing support device. The object of the present invention is to provide support for reliably closing the door panel despite its simple structure, and even when the weight of the door panel is different, there is no need to adjust the closing operation force of the door panel. The object is to provide a sliding door closing support device that can reduce the construction effort.

The closing assist device according to the present invention includes a door panel 1, a guide rail 2 that supports the door panel 1 through the runners 5 and 6, and an air damper 7 that brakes the door panel 1 against the closing operation force. It has. Rails 11 and 12 for rolling and guiding the runners 5 and 6 are provided on the guide rail 2. Downward inclined surfaces 11a and 12a for rolling and guiding the runners 5 and 6 toward the closed end are provided at the closed ends of the rails 11 and 12, respectively . In a state in which runners 5-6 reaches from the open position side to the downward slope 11a-12a, set to the air damper 7 starts to operate. The upper end sides of the door panel 1 are suspended by both first and second runners 5 and 6. The roller 19 of the first runner 5 and the roller 19 of the second runner 6 are provided in a state where the respective rolling surfaces are displaced forward and backward. A first rail 11 for moving and guiding the first runner 5 and a second rail 12 for moving and guiding the second runner 6 are arranged along the longitudinal direction of the guide rail 2.

A pair of front and rear first rails 11 for moving and guiding the first runner 5 and a pair of front and rear second rails 12 for moving and guiding the second runner 6 are disposed adjacent to each other along the longitudinal direction of the guide rail 2 . The first runner 5 is a first rail 11, and the second runner 6 is a second rail 12, which are suspended in a double -supported manner.

Along the longitudinal direction of the gas Idoreru 2, the first rail 11 to migrate guides the first runner 5, and a second rail 12 to migrate guide the second runner 6 separate arrangement. The first runner 5 is suspended by the first rail 11 and the second runner 6 is suspended by the second rail 12 in a cantilevered manner.

  Slide blocks 33 and 34 provided on both sides of the cylinder 25 of the air damper 7 are guided and supported by the auxiliary rail 13 provided on the inner surface of the guide rail 2 so as to be slidable back and forth. One of the magnet 39 and the iron piece 37 is attached to the projecting end of the piston rod 27, and the remaining one of the magnet 39 and the iron piece 37 is disposed near the closed end of the guide rail 2.

  Each of the first runner 5 and the second runner 6 includes a runner base 15 and a roller 19 supported by a roller shaft 18 fixed to the runner base 15. The second runner 6 is connected to a connecting frame 29 fixed to the end of the cylinder 25 of the air damper 7 so as to be movable up and down.

  Each of the first runner 5 and the second runner 6 is constituted by a runner base 15 and a roller 19 that is rotatably supported by a roller shaft 18 fixed to the runner base 15.

  In the present invention, descending inclined surfaces 11a and 12a are provided at the closed ends of the rails 11 and 12 for guiding the runners 5 and 6 so that the door panel 1 can be closed and moved by its own weight, while at the same time the air damper 7 Since the closing operation of the panel 1 is braked, the door panel 1 can be closed slowly but surely. Therefore, according to the closing support device of the present invention, while avoiding the trouble of operating the door panel 1 to the closed position, it is possible to reliably prevent the rebound, even when the door panel 1 is closed drastically, It is possible to prevent the door panel 1 from colliding with the door frame and reliably prevent the occurrence of collision noise. Even if the door panel 1 is closed by mistake while the fingertip is applied to the panel side end face, the fingertip is not injured and the door panel 1 can be safely closed.

  Since the door panel 1 can be closed and moved by its own weight along the descending inclined surfaces 11a and 12a, for example, a conventional closing assist device for closing the door panel using a slider or a spring, or the entire rail is inclined. Compared with a self-closing sliding door or the like, the overall structure of the closing support device can be remarkably simplified, and the manufacturing cost of the closing support device can be reduced accordingly. Furthermore, even if the weight of the door panel 1 is different, it is not necessary to adjust the closing operation force of the door panel 1, so that it is possible to save the trouble of adjustment at the time of construction and to support closing only by the simple structure. There is also an advantage that the reliability of the operation of the apparatus can be improved.

  When the door panel 1 is opened, the operating force required for the runners 5 and 6 to get over the rolling down inclined surfaces 11a and 12a may be applied. The door panel 1 can be opened more smoothly and smoothly than the support device. After overcoming the descending inclined surfaces 11a and 12a, the door panel 1 can be freely opened and closed in the same manner as a normal sliding door, and can be stopped and held at any open position, so that the application object of the closing assist device can be expanded. When the door panel 1 is opened and closed, no abnormal sound such as a contact sound or a sliding sound is generated.

  A first rail 11 and a second rail 12 are arranged separately on the front and rear of the guide rail 2, and the first and second runners 5 and 6 that suspend the door panel 1 are respectively connected to the previous rails 11 and 12, respectively. When the guide rail 2 is suspended in a cantilever manner, the guide rail 2 can be prevented from being enlarged in the vertical direction, and the vertical dimension of the wall opening and the partition opening can be kept within a normal dimension. As a result, the ready-made door panel 1 having a fixed size can be used without any problem, and a sliding door closing assist device that can reduce the overall cost of the door panel 1 and the guide rail 2 can be obtained.

  Along the longitudinal direction of the guide rail 2, a pair of front and rear first rails 11 and a pair of front and rear second rails 12 are disposed adjacent to each other, and the roller 19 of the first runner 5 and the roller 19 of the second runner 6 are If each rolling surface is provided in a state where it is displaced forward and backward, the first runner 5 can be suspended by the first rail 11 and the second runner 6 can be suspended by the second rail 12, respectively. When the door panel 1 is opened and closed, the runners 5 and 6 are surely prevented from meandering, and the door panel 1 can be opened and closed easily. Cost can be reduced by the simplification of the runner structure.

  When the slide blocks 33 and 34 provided on both sides of the cylinder 25 of the air damper 7 are guided and supported by the auxiliary rail 13 provided on the inner surface of the guide rail 2 so as to be slidable back and forth, the cylinder 25 is reliably rotated around its axis. Therefore, the iron piece 37 and the magnet 39 provided between the piston rod 27 and the guide rail 2 can always be reliably contacted and attracted. Thereby, since the adsorption area of the iron piece 37 and the magnet 39 can be made constant at all times, the variation in the separation timing between the iron piece 37 and the magnet 39 when the door panel 1 is opened can be eliminated.

  When the first runner 5 and the second runner 6 are configured by the runner base 15, the roller shaft 18, the pair of rollers 19, and the like, the weight load of the door panel 1 can be shared and supported by the pair of rollers 19, so the roller diameter is increased. There is no need, and the first and second runners 5 and 6 can be reduced in size accordingly. The runner base 15 of the second runner 6 is connected to a connecting frame 29 provided at the end of the air damper 7 so as to be movable up and down. Both the first and second runners 5 and 6 are descended inclined surfaces 11a and 12a. This is because the vertical movement when moving up and down is absorbed between the runner base 15 and the connecting frame 29 to prevent the air damper 7 from moving up and down.

  When each of the first runner 5 and the second runner 6 is composed of a runner base 15 and a roller 19 that is pivotally supported by a runner shaft 18 fixed to the runner base 15, a plurality of runner shafts 18 are provided. Compared to the runners, the structure of both runners 5 and 6 can be simplified, and since the posture of the roller 19 does not change when moving up and down the descending inclined surfaces 11a and 12a, both runners 5 and 6 can be smoothly opened and closed. .

(Embodiment) FIGS. 1 to 8 show an embodiment of a sliding door having a single structure to which a closing support device according to the present invention is applied. This type of sliding door is applied to walk-in closets and entrances to storage rooms. In FIG. 2, reference numeral 1 denotes a door panel, 2 denotes an upper guide rail, and 3 denotes a floor guide rail. At both lower corners of the door panel 1, a brace 4 that is guided to move by a guide rail 3 on the floor surface side is mounted. A first runner (runner) 5 and a second runner (runner) 6 that are guided to be transferred along the upper guide rail 2 are mounted on both ends of the upper surface of the door panel 1. Reference numeral 7 is an air damper, and 8 is a handle for opening and closing the door panel 1.

  In FIG. 3, the guide rail 2 is made of an aluminum strip having a C-shaped cross section that opens downward. The guide rail 2 supports the first rail (rail) 11 with the support wall 10 on the lower end front side, and the support wall 10 on the lower end rear side. The second rail (rail) 12 is supported. The first rail 11 rolls and guides the previous first runner 5, and the second rail 12 rolls and guides the previous second runner 6. For this purpose, the first rail 11 is disposed from the closed end of the door panel 1 located at the closed position to the open end, and the second rail 12 is disposed near the open end of the door panel 1 located at the closed position. Arrange over the open end of the frame. A pair of front and rear auxiliary rails 13 project from the inside of the guide rail 2.

  Each of the first and second rails 11 and 12 is made of a plastic strip material, and has descending inclined surfaces 11a and 12a on the closed end side. A concave portion 14 is formed on the open end side to allow one of the rollers 19 to fall (see FIGS. 4 and 7). In a state where the door panel 1 is fully opened, the roller 19 falls into the recess 14 so that the open state can be maintained. Therefore, it is not necessary to provide a separate catch mechanism, and the structure of the sliding door can be simplified accordingly. The left and right lengths of the descending inclined surfaces 11a and 12a in this embodiment are 150 mm.

  5 and 6, the first runner 5 includes a square block-shaped runner base 15, a roller frame 17 pivotally supported by a shaft 16 projecting from the runner base 15, and both ends of the roller frame 17. It comprises a pair of left and right rollers 19 that are pivotally supported via a roller shaft 18 and an anti-vibration frame 21 that is fixed to the runner base 17 and supports a pair of left and right anti-vibration rollers (anti-vibration bodies) 20. To do. The first runner 5 is connected to a connecting unit 9 attached and fixed to the door panel 1 via a runner shaft 22, and the first runner 5 and the connecting unit 9 are removed from the door panel 1 when necessary. be able to. The runner base 15, the roller 19, and the anti-roll roller 20 are made of a plastic molded product, and the roller frame 17 and the anti-vibration frame 21 are made of a press fitting. The swing roller 20 contacts the front and rear support walls 10 to prevent the first runner 5 from meandering.

  The second runner 6 is configured in the same manner as the first runner 5, except that the second runner 6 is connected to the air damper 7 using the retaining frame 21. Specifically, as shown in FIG. 7, an inverted L-shaped connecting claw 24 protrudes from one side upper part of the anti-rest frame 21, and the connecting claw 24 is attached to the connecting frame 29 provided on the end plug 28 of the cylinder 25. It is connected to be movable up and down. As shown in FIG. 4, the first runner 5 and the second runner 6 are suspended from the rails 11 and 12 in a posture that is reversed in the front-rear direction.

  In FIG. 1, the air damper 7 includes a cylinder 25, a piston 26, and a piston rod 27. When the piston rod 27 retracts into the cylinder 25, the air damper 7 squeezes the outlet passage of the air pushed out by the piston 26. The closing operation of the panel 1 is braked. An end plug 28 is fixed to one end of the cylinder 25, and a valve for restricting the previous outlet passage is incorporated therein. The throttle amount of the valve can be changed by adjusting the screwing amount. A connecting frame 29 projects from the outer end of the end plug 28, and a connecting claw 24 is connected to a connecting hole 30 formed in the connecting frame 29 so as to be movable up and down (see FIG. 7).

  In order to prevent the posture of the air damper 7 from changing around the axis within the guide rail 2, slide blocks 32 to 34 are fixed to the tip of the piston rod 27 and both ends of the cylinder 25, respectively. A pair of grooves 35 that are slidably guided by the auxiliary rail 13 are provided before and after each of the slide blocks 32 to 34. As shown in FIG. 8, the slide blocks 32 and 33 attached to the tip of the piston rod 27 and the left end of the cylinder 25 are formed as independent plastic molded products, but the slide block 34 provided at the right end of the cylinder 25. Is formed integrally with the end plug 28 (see FIG. 7).

  As shown in FIG. 1, a slide block 32 and a magnet 39 are fastened together with screws 38 at the protruding end of the piston rod 27, and an L-shaped iron piece 37 attracted by the magnet 39 is attached to the guide rail 2. It is fixed near the closed end inside. When the door panel 1 in the closed position is opened, the piston rod 27 is attracted and held on the iron piece 37 via the magnet 39. When the cylinder 25 is moved in the opening direction and the piston rod 27 extends to the limit position, the magnet 39 is separated from the iron piece 37, and the cylinder 25 and the piston rod 27 move together with the door panel 1 in that state. .

  The door panel 1 can be opened and closed in the same manner as a normal sliding door for most of the opening and closing strokes. However, if the door panel 1 is closed from an arbitrary open position to the closed end, both the first and second runners 5 and 5 When 6 reaches the down inclined surfaces 11a and 12a provided on the first and second rails 11 and 12, the door panel 1 starts to close and move by its own weight. At this time, the iron piece 37 provided at the tip of the piston rod 27 contacts the magnet 39. The open position of the door panel 1 at this time is a predetermined position in this embodiment.

  When the door panel 1 moves beyond the predetermined position to the closing side, the piston rod 27 and the piston 26 retract into the cylinder 25, compressing the air in the cylinder 25 and exerting a braking force. Therefore, the door panel 1 moves slowly but surely to the closed position at a speed commensurate with the amount of air released from the air damper 7. That is, when the door panel 1 exceeds the predetermined position, the door panel 1 can be automatically closed without having to close the door panel 1 thereafter. The door panel 1 and the runners 5 and 6 that have moved to the closed position move downward by the vertical component of the descending inclined surfaces 11a and 12a. This downward movement is absorbed by the connection claw 24 moving downward relative to the connection frame 29. Therefore, the air damper 7 does not move up and down. Similarly, the brace 4 absorbs the downward movement of the door panel 1 by compressive deformation of a spring 4a provided in the case (see FIG. 3).

  The door panel 1 may be closed and operated with great force. In that case, the compression pressure of the air in the cylinder 25 rises and repels the closing force of the door panel 1. Therefore, the door panel 1 can be moved slowly to the closing side while being braked by the air damper 7, and does not collide with the door frame. When the door panel 1 in the closed state is opened, both runners 5 and 6 move up while rolling on the descending inclined surfaces 11a and 12a of the rails 11 and 12, respectively. The operating force at this time is sufficiently small compared to the conventional closing support device that uses the tension of the spring to close the door panel, so that the door panel 1 can be opened easily and opened and closed like a normal sliding door. Smooth operation. The door panel 1 that has been opened beyond a predetermined position can be held in any open position.

  FIG. 9 shows another embodiment of the first and second runners 5 and 6. There, each runner 5 and 6 is comprised by the runner base 15, the one roller 19 pivotally supported by the runner base 15 via the roller shaft 18, and a pair of left and right anti-roll rollers 20. ing. Thus, if each runner 5 * 6 is made into a single-wheel structure, when each runner 5 * 6 rolls on descending inclined surface 11a * 12a, there will be no posture change of the roller 19, and a runner structure will be simplified and the part Only cost can be reduced.

  In the above embodiment, the first runner 5 and the second runner 6 are suspended in a cantilever manner by the first rail 11 and the second rail 12, respectively. It can be suspended in both-ends. The details are shown in FIGS.

  As shown in FIGS. 10, 11, and 13, the first runner 5 is pivotally supported by a block-like runner base 15, a roller shaft 18 that passes through the runner base 15 in the front-rear direction, and a coaxial 18 so as to be freely rotatable. A pair of front and rear rollers 19 and a collar 41 interposed between the runner base 15 and the roller 19 constitute a runner having a single-shaft two-wheel structure. The roller frame 17, the anti-roll roller 20, and the anti-vibration frame 21 in the above embodiment are omitted in order to simplify the structure, and the runner base 15 has a structure that exhibits the anti-vibration function. The runner shaft 22 is made of a plate material and is assembled to the runner base 15 using the roller shaft 18.

  As shown in FIG. 12 and FIG. 14, the second runner 6 is basically configured in the same manner as the first runner 5, but corresponds to the connecting claw 24 on a stand protruding from one side of the runner stand 15. The point where the connecting shaft 42 is integrally formed and the collar 41 are not provided, and the front-rear distance of the roller 19 of the second runner 6 is set smaller than the front-rear distance of the roller 19 of the first runner 5. The point is different. The connecting shaft 42 is connected to a connecting frame 29 provided on the end plug 28 of the cylinder 25 so as to be vertically movable.

  In order to suspend the runners 5 and 6 in a both-sided manner, the rolling surface of the roller 19 of the first runner 5 and the rolling surface of the roller 19 of the second runner 6 in the guide rail 2 are moved back and forth. It is staggering. Specifically, as shown in FIGS. 15 and 16, the first rail 11 and the second rail 12 are arranged on the inner surfaces of the front and rear support walls 10 in a state adjacent to each other in the rail longitudinal direction, and both rails 11, 12 are arranged. The upper surface of the is continuous. In addition, the positions where the downward inclined surfaces 11a and 12a of the first rail 11 and the second rail 12 are formed are shifted back and forth.

  In the first rail 11, the downward inclined surface 11 a is formed on the front side or the rear side of the first rail 11 adjacent to the front wall or the rear wall of the guide rail 2 corresponding to the large front-rear distance of the roller 19 of the first runner 5. Is forming. On the other hand, in the 2nd rail 12, since the front-back space | interval of the roller 19 of the 2nd runner 6 is small, the downward inclined surface 12a is formed in the opposing surface of a pair of front-back 2nd rail 12. FIG. As described above, when the positions of the downward inclined surfaces 11a and 12a of the rails 11 and 12 are shifted back and forth, the roller 19 of the first runner 5 moves along the upper surface of the second rail 12 with the opening movement of the door panel 1. When moving to the side, the door 19 can be fully opened by preventing the roller 19 from falling on the downward inclined surface 12a on the second rail 12 side.

  As shown in FIG. 10, in this embodiment, the slide blocks 33 and 34 provided at both ends of the cylinder 25 are guided by the auxiliary rail 13 provided on the inner surface of the upper wall of the guide rail 2. The slide block 32 that supports the piston rod 27 is omitted. Further, the first magnet 44 is fixed to the guide rail 2 side using the auxiliary rail 13, and the second magnet 45 is fixed to the tip of the piston rod 27.

  The first magnet 44 includes a holder 46, a magnet 47 embedded and fixed in the holder 46, and a cushion body 48 disposed on the adsorption surface of the holder 47 with the second magnet 45. The second magnet 45 includes a round cylindrical holder 50 and a disk-shaped magnet 51. When the first and second magnets 44 and 45 are attracted to each other, the piston rod 27 can be attracted and held. The cushion body 48 is provided to prevent the occurrence of a collision sound when the magnets 44 and 45 are attracted.

  In this embodiment, the floor-side guide rail 3 and the anti-rest 4 made of unit parts in the previous embodiment are omitted. Instead, a guide roller 53 that is rotatable about the vertical axis is provided on the floor surface, and a groove 54 formed on the lower end surface of the door panel 1 is guided by the guide roller 53 so that the door panel 1 is swung in the front-rear direction. And regulated meandering. As described above, the runner base 15 of each runner 5 or 6 also serves to regulate the swinging and meandering of the door panel 1.

  As described above, when the runners 5 and 6 have a uniaxial two-wheel structure, there is no change in the posture of the roller 19 when the runners 5 and 6 roll on the descending inclined surfaces 11a and 12a. The cost can be reduced by the amount. Further, since the first runner 5 and the second runner 6 are suspended by the first rail 11 and the second rail 12, respectively, the runners 5 and 6 are reliably prevented from meandering during the opening / closing operation. Thus, the door panel 1 can be opened and closed more easily. Since the other structures and the movements and operation timings of the respective members are the same as those of the previous embodiment, the same members are denoted by the same reference numerals and the description thereof is omitted.

  In addition to the above embodiment, the closing assist device of the present invention can be applied to a sliding door composed of a plurality of door panels 1. In the above embodiment, the first and second rails 11 and 12 are arranged separately on the front and rear sides of the guide rail 2, and the first and second runners 5 and 6 are suspended in a cantilever manner. no need to do that. For example, when a pair of front and rear support walls 10 are provided on the upper and lower surfaces of the guide rail 2 and each of the upper and lower support walls 10 supports the pair of front and rear rails 11 and 12, the rollers 19 provided on the front and rear of the runner base 15. Can be supported by the rails 11 and 12 in a doubly supported manner.

  10 to 17, the rolling surface of the roller 19 of the first runner 5 in the guide rail 2 is outside the rail cross section, and the rolling surface of the roller 19 of the second runner 6 is the rail cross section. Although it arrange | positioned inside and behind, the roller 19 of each runner 5 * 6 was varied, and the roller rolling surface was shifted back and forth, but it is not necessary. For example, by alternately arranging the rolling surface of the roller 19 of the first runner 5 in and out of the rail cross section and the rolling surface of the roller 19 of the second runner 6 in and out of the rail cross section, Roller rolling surface can be shifted back and forth. In that case, each of the pair of front and rear first rails 11 and the pair of front and rear second rails 12 can be made into a common part.

  Each of the first and second rails 11 and 12 can be composed of two or more parts. For example, only the parts of the downward inclined surfaces 11a and 12a are formed by one part, the other part is formed by a plastic strip, and each is fastened and fixed to the support wall 10. The downward inclined surfaces 11a and 12a do not need to be formed by linear inclined surfaces, but can be formed by a gently curved projecting arc surface or concave arc surface.

  Between the door panel 1 and the floor surface in the open position, a gap necessary for descending the descending inclined surfaces 11a and 12a is provided. In order to prevent light and sound from leaking from this gap, mohair or rubber A shielding material such as a film can be attached to the lower surface of the door panel 1. In that case, since the shielding material can be brought into contact with the floor using the operation when the door panel 1 descends the descending inclined surfaces 11a and 12a, a mechanism for making the shielding material contact with the floor is provided. There is no need to provide it, and the sliding door structure provided with the shielding material can be simplified accordingly.

It is a vertical front view of a closing assistance device. It is a front view of a sliding door. It is the sectional view on the AA line in FIG. It is a cross-sectional top view which shows the support structure of a runner. It is a vertical front view which shows a 1st runner and a 1st rail. It is a disassembled perspective view of a 1st runner. It is a partially broken front view of a 2nd runner. It is the BB sectional view taken on the line in FIG. It is a vertical front view which shows another Example of a runner. It is a vertical front view of the closing assistance apparatus which concerns on another Example. It is a vertical front view which shows a 1st runner and a 1st rail. It is a vertical front view which shows a 2nd runner and a 2nd rail. It is CC sectional view taken on the line in FIG. It is the CD sectional view taken on the line in FIG. It is a disassembled perspective view of a 1st rail and a 2nd rail. It is a cross-sectional top view which shows the support structure of a runner. It is a front view of a sliding door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door panel 2.3 Guide rail 5 1st runner 6 2nd runner 7 Air damper 11 1st rail 11a Downhill inclined surface 12 of the 1st rail 2nd rail 12a Downhill inclined surface of the 2nd rail

Claims (6)

The door panel (1), a guide rail (2) for supporting the door panel (1) in a suspended manner via runners (5, 6), and an air damper for braking the door panel (1) against the closing operation force (7)
Rails (11, 12) for rolling and guiding the runners (5, 6) are provided on the guide rails (2), and the runners (5, 6) are directed toward the closed ends of the rails (11, 12) Down slope surfaces (11a and 12a) for rolling guidance are provided,
In a state in which the runner (5, 6) reaches from the open position side to the downward slope (11a, 12a), Ri is set as an air damper (7) starts to operate tare,
The upper end sides of the door panel (1) are suspended by both first and second runners (5, 6),
The roller (19) of the first runner (5) and the roller (19) of the second runner (6) are provided in a state where the respective rolling surfaces are displaced forward and backward,
A first rail (11) for moving and guiding the first runner (5) and a second rail (12) for moving and guiding the second runner (6) are arranged along the longitudinal direction of the guide rail (2). A closing support device for sliding doors. A pair of front and rear first rails (11) for guiding the transition of the first runner (5) along the longitudinal direction of the guide rail (2) and a pair of front and rear second rails for guiding the transition of the second runner (6) ( 12) are arranged adjacent to each other,
The sliding door closing support device according to claim 1, wherein the first runner (5) is a first rail (11), and the second runner (6) is a second rail (12), both of which are suspended. . Along the longitudinal direction of the gas Idoreru (2), a first rail to migrate guides the first runner (5) (11), but the second rail to migrate guide the second runner (6) (12) Are separated ,
The sliding door closing support device according to claim 1, wherein the first runner (5) is a first rail (11) and the second runner (6) is a cantilevered suspension. . Slide blocks (33, 34) provided on both sides of the cylinder (25) of the air damper (7) are guided and supported by an auxiliary rail (13) provided on the inner surface of the guide rail (2) so as to be slidable back and forth.
One of the magnet (39) and the iron piece (37) is attached to the projecting end of the piston rod (27), and the remaining one of the magnet (39) and the iron piece (37) is arranged near the closed end of the guide rail (2). 4. The sliding door closing support device according to claim 1, 2, or 3 . Each of the first runner (5) and the second runner (6) includes a runner base (15) and a roller (19) supported by a roller shaft (18) fixed to the runner base (15). And
Second runner (6) is, the cylinder end fixed connecting frame to the (25) (29) of the air damper (7), according to any one of claims 1 to 4 are moved vertically linked Sliding door closing support device. Each of the first runner (5) and the second runner (6) is a runner base (15) and a roller (19) that is pivotally supported by a roller shaft (18) fixed to the runner base (15). The sliding door closing assist device according to any one of claims 1 to 5 , wherein

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