JP4708503B1 - Sliding door guide device - Google Patents

Abstract

An inexpensive sliding door guide device that does not require adjustment of the gap or replacement of a magnet even if there is a difference in the size of the gap between the sliding door and the floor surface.
The sliding door guide device R is configured such that, in the door side guide G2, the suction table 45 of the magnetizing means 29 and 30 is tilted so that the tip contact portion 45b protrudes from the elevator port 32 of the storage case 35 to a predetermined height. The magnet M mounted on the tip contact portion 45b is lowered to a height near the floor surface f and waits, and the sliding door 10 is suspended with a large gap d between the floor surface and the floor M. Even so, the magnetic projection attracts the third convex member 25 made of a magnetic material to raise the guide projection 15 of the floor side guide G1 in a nested manner, and the engaging plate portion 25a of the third convex member 25 is guided to the guide rail 40. The sliding door 10 is guided by being engaged with the engaging rib 40b.
[Selection] Figure 1

Description

  The present invention relates to a sliding door guide device that guides an upwardly suspended sliding door so that the sliding door moves straight without swinging with respect to the opening and closing direction when opening and closing.

  Conventionally, in this type of sliding door guide device, a mounting hole is recessed in the floor surface under the trajectory where the sliding door moves, and a guide pin having a magnet at the upper end is inserted into the mounting hole so as to be movable up and down. On the other hand, a magnetized body having a magnet is arranged in a long and narrow guide groove recessed in the lower end surface of the sliding door, and when the sliding door side magnetic body reaches the floor side guide pin during opening and closing, the magnetic force guides. There is a structure in which a pin is pulled up to engage with a guide groove and guided so as to move straight without swinging in the opening / closing direction in which the sliding door moves (see Patent Document 1).

JP-A-8-326402

  In general, a sliding door is hung with a slight gap between it and the floor, even in a room that considers airtightness. There are variations in the size of the gap between the floor, such as being suspended with a large gap. Therefore, in the conventional sliding door guide device described above, since the gap between the sliding door and the floor surface is large, if the sliding door side magnet and the floor side guide pin are too far apart, the guide pin is pulled up by the magnetic force and engaged with the guide groove. You may not be able to. Therefore, conventionally, in such a case, there was a problem that it was troublesome to remove the sliding door and adjust the gap between the floor and the floor. In addition, it is conceivable to replace the magnet provided on the sliding door side with a large and ferromagnetic magnet. However, since the magnet is relatively expensive, there is a problem that the cost is significantly increased.

  Accordingly, an object of the present invention is to provide an inexpensive sliding door guide device that does not require adjustment of the gap or replacement of a magnet even if there is a difference in the size of the gap between the sliding door and the floor surface. is there.

  Therefore, according to the first aspect of the present invention, for example, as shown in the embodiment shown below, the guide groove 12 is provided in the length direction of the lower end surface 10a, and a gap d is formed between the floor surface f and the guide groove 12. In the sliding door guide device R that guides the sliding door 10 that is movably suspended in the opening and closing direction in a state so that it does not sway at the time of opening and closing, a plurality of recesses are provided at intervals on the floor surface f under the trajectory where the sliding door 10 moves. The floor side guide G1 in which the magnetic material guide projection 15 is inserted in the mounting holes x, y, and z so as to be able to protrude and retract, and the door side guide G2 provided in the guide groove 12 of the sliding door 10, the door side The guide G2 is fitted to both ends of the guide groove 12 and attracts the guide protrusion 15 by magnetic force to rise, and the pair of magnetic attachment means 29 and 30 in the guide groove 12. The guy that layed in between and stood up The magnetic attachment means 29, 30 includes a storage case 35 having an opening 32 in the bottom 35a and a base end portion pivotally supported in the storage case 35. The suction table 45 is provided with a swingable cantilever 45 and a magnet M attached to the suction table 45, and the abutment portion 45 b of the tip of the suction table 45 protrudes from the elevator 32 by a predetermined height h. The storage case 35 is locked at an inclination angle position.

  According to a second aspect of the present invention, in the sliding door guide device R according to the first aspect, for example, as shown in the illustrated embodiment shown below, the magnetic attachment means 29 and 30 attach the magnet M to the suction table 45. It is characterized by being slidably mounted on the top.

  According to a third aspect of the present invention, in the sliding door guide device R according to the first or second aspect, for example, as shown in the illustrated embodiment shown below, the floor side guide G1 has the guide projections 15 formed of a plurality of protrusions. It is characterized in that it is configured by inserting the members 23, 24 and 25 in a nested manner.

  According to a fourth aspect of the present invention, in the sliding door guide device R according to the third aspect, for example, as shown in the embodiment shown below, the guide projection 15 is formed by forming the innermost convex member 25 with an elongated magnetic plate material. The engaging plate portion 25a is formed to be engaged with the guide rail 40 by bending the upper end of the magnetic plate material.

  According to the first aspect of the present invention, in the door-side guide, the adsorption base of the magnetizing means is held at an inclined angle position where the abutting portion at the tip protrudes from the elevator opening of the storage case by a predetermined height, Since the magnet attached to the adsorption stand descends to near the floor surface and stands by, even if the sliding door is suspended with a large gap between it and the floor surface, the guide protrusion is sufficiently attracted by the magnetic force to start up, The guide rail can be reliably engaged. Therefore, in order to prevent the sliding door side magnet and the floor side guide projection from being separated too much because the gap between the sliding door and the floor surface is large, for example, the sliding door is removed to remove the clearance between the floor surface and the floor surface. There is no need for the troublesome work of adjusting the size, and it is no longer necessary to replace the originally expensive magnet with a larger ferromagnetic magnet so that the magnetic force extends to the guide protrusion, and the cost is significantly reduced. can do. On the other hand, when the gap between the sliding door and the floor surface is small, the suction table of the magnetizing means has a contact portion at the tip that contacts the floor surface, but the suction table has a base end in the storage case. Because it is pivotally supported and cantilevered so that it can be freely moved, when sliding doors move, the frictional resistance is low, and it runs while slipping on the floor surface at the abutting portion of the tip. Even when the gap between the sliding door and the floor surface is small, it is possible to guide the sliding door so that it does not swing sideways without hindering traveling of the sliding door.

  According to the second aspect of the present invention, since the magnetizing means slidably mounts the magnet on the adsorption table, when the sliding door moves in the opening / closing direction, the magnet attracts the guide projection by magnetic force. While sliding up on the adsorption table while being pulled up, if the magnet slides up, the magnet slides down according to the inclination of the adsorption table due to its own weight, returns to the original adsorption position and waits, and can be prepared for pulling up the guide protrusion by magnetic force. As a result, the magnet does not need to be formed over the entire surface of the adsorption table, and the magnet to be used can be reduced in size, so that the cost can be significantly reduced.

  According to the third aspect of the present invention, the floor side guide is constructed by incorporating guide protrusions by nesting a plurality of convex members, so that there is a large gap between the sliding door and the floor surface. Even if it is suspended, a sufficient stroke can be secured with sufficient rigidity to project to the height that engages with the guide rail at the lower end of the sliding door while ensuring the necessary rigidity, while the guide protrusion is inserted and removed freely. Since the depth of the mounting hole may be shallow, the guide projection can be easily installed even in a shallow mounting hole that falls within the thickness range of the flooring.

  According to the fourth aspect of the present invention, the guide protrusion forms the innermost convex member with an elongated magnetic plate material, and forms an engagement plate portion that bends the upper end of the magnetic plate material to engage with the guide rail. As a result, the guide protrusion can be easily processed, and the mechanical strength can be increased.

It is a perspective view which shows the sliding door guide apparatus of this invention. It is a front view which shows the sliding door structure provided with the sliding door guide apparatus in the fully open state of a sliding door by making the lower part side into a partial cross section. It is a disassembled perspective view which shows a floor side guide. 5A is a plan view showing a floor-side guide in a state where the guide projection is stored, FIG. 5B is a cross-sectional view taken along the line XX in FIG. 4, and FIG. 5C is a cross-sectional view taken along the line YY in FIG. FIG. 6A is a plan view showing a floor-side guide in a state where the guide protrusion is pulled out, FIG. 5B is a cross-sectional view taken along line XX in FIG. 5, and FIG. 6C is a cross-sectional view taken along line YY in FIG. It is an exploded view showing a magnetic adhesion means. FIG. 8A is a plan view showing a magnetizing means, and FIG. 8B is a sectional view taken along the line ZZ in FIG. It is an assembly perspective view which shows a magnetic attachment means by fracture | rupturing one side of an opposing side board part. (A) Schematic explaining the protruding height position of the abutment part of the suction stand when the gap between the sliding door and the floor is large, (B) Contact of the suction stand when the gap between the sliding door and the floor is small It is a schematic diagram explaining the protrusion height position of a part. It is a fragmentary longitudinal cross-sectional view of the sliding door guide apparatus which shows a state when the magnet of a door side guide approaches the guide protrusion of a floor side guide. It is a fragmentary longitudinal cross-sectional view of the sliding door guide apparatus which shows the operation | movement which guides a sliding door in steps. It is a longitudinal cross-sectional view which shows the lower part side of a sliding door structure in the state which guides the sliding door in the middle of closing with a sliding door guide apparatus. It is a longitudinal cross-sectional view which shows the lower part side of a sliding door structure in the state which guides the sliding door before full closing with a sliding door guide apparatus. It is a longitudinal cross-sectional view which shows the lower part side of a sliding door structure in the fully closed state of a sliding door.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a sliding door guide device as an example of the present invention, and FIG. 2 is a front view showing a sliding door structure including the sliding door guide device in a fully opened state. The sliding door structure of the illustrated example engages the sliding door 10 with a sliding door rail fixed to the ceiling side and suspends the sliding door 10 so as to be movable in the opening and closing directions on the left and right sides in the figure. ) With a gap d of 20 mm, for example, and when opening and closing, the handle 11 is held to move the sliding door 10 in the opening and closing direction to open and close the opening S surrounded by the floor F and the partition wall W It has become. Therefore, when opening and closing the opening S by moving the sliding door 10, the sliding door guide device R of the present invention is operated to guide the sliding door 10 traveling in the opening and closing direction so as to go straight without swinging.

  The sliding door 10 is made of, for example, a wooden panel, and a pair of end plate members are bonded to each other with a frame body assembled in a lattice pattern between upper and lower horizontal fences, left and right vertical fences, and vertical and horizontal bars between each fence. As a result, the guide groove 12 is recessed along the length direction of the lower end surface 10a.

  The sliding door guide device R includes a floor side guide G1 disposed on the floor F and a door side guide G2 provided in the guide groove 12 of the sliding door 10.

  The floor side guide G1 includes a plurality of guide bodies a, b, and c. As shown in FIGS. 3, 4, and 5, each of the guide bodies a, b, and c includes a mounting case 14, a guide protrusion 15 that is inserted into the mounting case 14, a spacer 16, and a retainer 17. Prepare. The mounting case 14 is made of resin and has a rectangular tube-shaped case main body portion 14a that is open at both upper and lower ends, and a flat mounting plate portion 14b that extends in a bowl shape from the periphery of the projecting opening 18 that opens at the upper end of the case main body portion 14a. Consists of. The case body 14a is formed by providing a guide recess 14c on the inner surface of one opposing side and leaving a retaining step 14d at the upper edge of the guide recess 14c. Further, the case main body portion 14a is formed by projecting a pair of pin-shaped protrusions 13 on both sides of the component insertion port 19 between the lower end surface where the component insertion port 19 opposite to the projection port 18 is opened.

  Each of the guide protrusions 15 is a rectangular tube-shaped first convex member 23 that is nested and incorporated in the case body 14a of the mounting case 14, and a rectangular tube shape that is nested and incorporated in the first convex member 23. It consists of a second convex member 24 and a plate-like third convex member 25 that is nested and incorporated into the second convex member 24.

  The first convex member 23 is a metal rectangular tube whose upper and lower ends are opened in accordance with the case main body portion 14a of the mounting case 14, and a hook-shaped retaining convex portion 23a at the lower end in the figure of one opposing side portion. Is provided on the inner surface of the other opposing side portion, and a guide recess 23b for slidably fitting the second convex member 24 is provided on the inner surface of the other opposing side portion, and a stopper step 23c is provided at the upper edge of the guide recess 23b. Molded leaving

  The second convex member 24 is a metal rectangular tube whose upper and lower ends are opened in accordance with the first convex member 23, and a pair of retaining convex portions 24a that are square at the lower end in the figure of one opposing side portion. And a guide recess 24b into which the third convex member 25 is slidably fitted on the inner surface of the same opposing side portion, and a stopper step 24c is provided at the upper edge of the guide recess 24b. It is left and molded.

  The third convex member 25 uses an elongated metal magnetic plate whose tip is T-shaped, bends the tip of the magnetic plate at a right angle, and engages with a guide rail 40 described later on the sliding door 10 side. 25a is formed at the tip. In addition, the base end is provided with a fitting recess 25b on the end surface, and a pair of retaining projections 25c are provided on both sides of the fitting recess 25b so as to protrude away from each other. The spacer 16 is formed of a resin material in a substantially U shape, and has a pair of presser convex portions 16b that are bent at right angles at both upper and lower ends of a rectangular guide plate portion 16a. The retainer 17 is provided with a small-diameter ring portion 17b for fitting the pin-shaped protrusion 13 of the mounting case 14 at both ends of the support bar 17a.

  Therefore, the guide bodies a, b, and c are inserted into the mounting case 14 from the component insertion port 19 by inserting the first convex member 23 of the guide projection 15 and the retaining convex portion 23a is fitted into the guide concave portion 14c. One convex member 23 is nested in the case main body 14 a and is incorporated into the mounting case 14 so as to be able to protrude and retract from the protruding port 18. On the other hand, the third convex member 25 is inserted into the second convex member 24 from the component insertion port 27, the retaining convex portion 25c is fitted into the guide concave portion 24b, and the third convex member 25 is inserted into the second convex member. 24, the spacer 16 is inserted into the second convex member 24 from the same component insertion port 27, and the third convex member 25 and the second convex member 25 facing the third convex member 25 are inserted. A third convex shape is inserted between the guide plate portion 16a in which the presser convex portion 16b is pressed against the one side portion and the guide concave portion 24b of the second convex member 24. The member 25 is slidably held and positioned and held so as to be able to protrude and project from the protruding port 31 in an upright state. Next, the second convex member 24 holding the third convex member 25 as described above is inserted into the first convex member 23 from the component insertion port 29, and the retaining convex portion 24a is inserted into the guide concave portion 23b. The second convex member 24 is incorporated into the first convex member 23 in a nested manner so that the third convex member 25 can protrude and retract from the protrusion 31. Accordingly, the first, second, and third convex members 23, 24, and 25 are assembled in a nested manner, and the guide protrusion 15 is assembled.

  Then, in the mounting case 14, the ring-shaped portion 17 b of the retainer 17 is engaged with the pin-shaped protrusion 13, the fitting recessed portion 25 b of the third projecting member 25, the first projecting member 23, and the second projecting member. 24 and the spacers 16 are fitted into the fitting recesses 23d, 24d, and 16c, and the pin-shaped projections 13 are crushed and the stoppers 17 are fixed. Therefore, the component insertion port 19 of the mounting case 14 is prevented from being removed by the retainer 17, and the first, second, and third convex members 23, 24, and 25 are provided in the case main body portion 14 a in three stages. The guide bodies a, .b, and c are assembled in such a manner that they are nested in order and can be projected and retracted in order from the projecting ports 31, 28 and 18.

  As shown in FIGS. 1 and 2, the guide bodies a, b, and c each have a case body portion 14 a of the mounting case 14 that is recessed in advance with a space on the floor surface f under the trajectory where the sliding door 10 moves. Fit into the mounting holes x, y and z, screw the mounting plate 14b to the floor surface f and insert it with almost no difference from the floor surface f, so that the door side guide body a and the intermediate guide body The floor side guide G1 is comprised by b and the door-side guide body c.

  On the other hand, the door-side guide G2 includes a pair of magnetic attachment means 29 and 30 provided at both ends of the guide groove 12 and a guide rail 40 provided between the magnetic attachment means 29 and 30 in the guide groove 12.

  The magnetizing means 29 and 30 include a storage case 35, a suction table 45 stored in the storage case 35, and a rectangular plate-shaped magnet M attached to the suction table 45.

  The storage case 35 is an elongated rectangular box that matches the groove shape of the guide groove 12, and as shown in FIGS. 6, 7, and 8, the attachment base 34 of the suction table 45 is opened on the upper side, and the bottom 35a. The boss portion 35b for screwing is provided at one end in the length direction, and a pair of connecting convex portions 35d project from the upper side of the opposing side plate portion 35c on the other end side. A pair of engagement ribs 35e bent in an L shape inward from each other are provided on the lower side. Furthermore, a shaft hole 38 is provided on the other end side of the opposing side plate portion 35c so as to cross the gap. And the latching step part 35f which latches the front-end | tip of the adsorption stand 45 protrudes in the raising / lowering port 32 side of the lower end of the boss | hub part 35b.

  The suction table 45 is made of a resin material as a raw material, is provided with a guide recess 45a for slidably guiding the magnet M, is formed into a slide shape, and is formed to be slippery with a smooth surface as a whole. Furthermore, the suction stand 45 is provided with a shaft hole 33 that penetrates the pivot 50 in the width direction at the base end portion, and is provided with a shovel-like contact portion 45b at the tip, and a shaft hole at the upper end of the contact portion 45b. 33 is provided with a locking shaft 45 c parallel to 33. In the guide recess 45a, presser ribs 45d for restricting the protrusion of the magnet M are provided on the upper edge of the side wall facing in the width direction so as to protrude in a direction facing each other.

  Therefore, the magnetizing means 29 and 30 store the suction stand 45 by inserting the pivot 50 into the shaft holes 38 and 33 of the storage case 35 and the suction stand 45 and pivotally supporting the base end portion of the storage case 35 with the pivot 50. While tilting in the case 35 so as to be swingable, the locking shaft 45c is locked to the locking step portion 35f, and the tip contact portion 45b protrudes from the elevator port 32 by a predetermined height h (for example, 10 mm). Hold in angular position. The adsorption table 45 is assembled by slidably mounting the magnet M on the bottom surface 37 of the guide recess 45a.

  As shown in FIG. 1, the guide rail 40 is provided with a relief groove 39 along the length direction at the center of the lower surface of a rail body 40 a having a substantially square pipe shape, and engaging ribs 40 b are provided on both sides of the relief groove 39. Line up in parallel. On the other hand, on the upper plate portion 40c of the rail body 40a, the engaging step portion 40d for connection is formed by bending the corner edges on both sides in the width direction in accordance with the convex shape of the connecting convex portion 35d of the magnetizing means 29 and 30. is doing.

  Therefore, the door-side guide G2 fits the magnetic coupling means 29 and 30 with the connecting projections 35d facing each other in the both ends of the guide groove 12, and screws the boss 35b to the groove bottom surface. With the engaging step 40d of the guide rail 40 engaged with the connecting projection 35d of 29.30 and the engaging ribs 35e, 40b of the guide rail 40 aligned with each other, the guide rail 40 is attached to the magnetizing means 29.30. The upper plate part 40c is screwed to the groove bottom surface and assembled. Accordingly, the door-side guide G2 is installed in the guide groove 12.

  Therefore, the sliding door guide device R is shown in FIG. 9 when the sliding door 10 is suspended with a large gap d of 20 mm between the lower end surface 10a and the floor F (floor surface f) as shown in the example of FIG. As shown in FIG. 10A and FIG. 10, in the door side guide G <b> 2, the suction platform 45 of the magnetizing means 29 and 30 is inclined at an angle at which the abutting portion 45 b protrudes from the elevator port 32 at a height h = 10 mm. The magnet M is held at a suction position on the contact part 45b of the suction table 45, and is lowered to a position near the floor surface f (for example, up to a height of about 10 mm to the floor surface f). It becomes.

  Therefore, when the sliding door 10 moves in the opening and closing direction and opens and closes the opening S, the sliding door guide device R is configured such that the magnetizing means 29 and 30 in the door side guide G2 are the guide bodies (a, b, c), as shown in FIG. 11A, the magnet M placed on the contact portion 45b of the suction table 45 is placed on the guide protrusion 15 of the floor side guide G1 (guides a, b, c). , The inner third convex member 25 made of a magnetic material is pulled up from the second convex member 24 by the magnetic force. When the third convex member 25 is pulled up, the retaining convex portion 25c is locked to the retaining step 24c [see FIGS. 5B and 5C], and the intermediate second convex member 24 is the first. When rising from the convex member 23 as shown in FIG. 11B, the retaining convex portion 24a shown in FIG. 3 is locked to the retaining step portion 23c, and the outer first convex member 23 is the mounting case. As shown in FIG. 11 (C), it stands up from 14 in a nested manner. Then, as the sliding door 10 moves in the opening and closing direction at that time, the magnet M slides up the bottom surface 37 of the suction table 45 in a state where the guide projection 15 is attracted and pulled up, and then the engagement plate portion 25a of the third convex member 25 is obtained. Is engaged with the engaging rib 35e through the elevator port 32 of the magnetic attachment means 29 (30), and further is engaged with the engaging rib 40b of the guide rail 40 as shown in FIG. The sliding door 10 is structured to guide so as to go straight without swinging with respect to the opening / closing direction in which the sliding door 10 travels.

  Accordingly, in the sliding door guide device R, the guide projection 15 of the floor side guide G1 (guide bodies a, b, and c) is configured by incorporating a plurality of convex members 23, 24, and 25 in a nested manner. Even if it is suspended with a large gap d between it and the floor surface f, a sufficient stroke is ensured with sufficient rigidity to project to a height that engages with the guide rail 40 at the lower end of the sliding door. On the other hand, since the depth of the mounting holes x, y, and z into which the guide protrusions 15 can be inserted and removed freely can be reduced, the guide protrusions can be easily formed even if the mounting holes are within the thickness range of the flooring. 15 can be installed.

  Now, when the sliding door structure of the illustrated example is closed, when the sliding door 10 having the opening S fully opened as shown in FIG. 2 is pulled in the closing direction indicated by the arrow with the handle 11, the sliding door rail is guided by the guidance of the sliding door rail. While sliding, the sliding door 10 starts to move in the closing direction and starts to close the opening S. During this closing, the sliding door guide device R is nested in the intermediate guide body b of the floor side guide G1, as shown in FIG. The engaging plate portion 25a of the third convex member 25 of the guide protrusion 15 rising to engage with the engaging rib 40b of the guide rail 40 so that the sliding door 10 moves straight without swinging in the closing direction. invite.

  Then, the sliding door 10 further advances straight in the closing direction, and the door-end side magnetizing means 29 of the door-side guide G2 approaches the door-end side guide body a of the floor-side guide G1, as shown in FIG. When the magnet M placed on the attracting position on the abutting portion 45b of the attracting table 45 reaches the guide projection 15, the third convex member 25 is attracted and pulled up by the magnetic force, and as shown in FIG. As shown in FIG. 5C, the second convex member 24 and the first convex member 23 are pulled up in a nested manner, and the guide protrusion 15 rises vertically. Then, as the sliding door 10 moves in the closing direction at that time, the magnet M slides up on the bottom surface 37 in the guide recess 45a of the suction table 45 with the guide protrusion 15 raised, and rises as shown in FIG. The engagement plate portion 25a of the third convex member 25 is engaged with the engagement rib 35e of the door end side magnetizing means 29 and then engaged with the engagement rib 40b of the guide rail 40. At that time, the guide rail The third convex member 15 of the intermediate guide body b engaged with the engagement rib 40 b on the door-toe side of 40 is disengaged from the engagement rib 35 e of the door-side magnetizing means 30 through the elevator port 32. Therefore, after that, the sliding door 10 goes straight so as not to sway due to the guidance of the guide protrusion 15 of the door end side guide body a, and fully closes the opening S as shown in FIG.

  In the sliding door guide device R, when the sliding door 10 moves in the opening and closing direction, the magnet M slides up on the bottom surface 37 of the suction stand 45 while attracting the guide protrusion 15 with a magnetic force and is pulled up, but slides up. When it hits the upper end groove wall of the guide recess 45a, it can slide down the bottom surface 37 according to the inclination of the suction table 45 by its own weight, return to the original suction position and wait, and be prepared for pulling up the guide protrusion 15 by magnetic force again. Therefore, in the sliding door guide device R, it is not necessary to form the entire surface of the bottom surface 37 of the suction table 45 with a magnet, and the amount of magnets to be used can be reduced, so that the cost can be remarkably reduced.

  By the way, in the sliding door guide device R, even if the sliding door 10 is suspended with a large gap d of 20 mm from the floor surface f, as shown in FIG. 9A and FIG. In this case, the suction table 45 of the magnetizing means 29 and 30 is held at an inclined angle position where the tip contact portion 45b protrudes from the lift 32 of the storage case 35 at a height h = 10 mm, and the tip contact portion 45b. Since the magnet M placed on the floor lowers to the floor surface f having a height of 10 mm and waits until it reaches the floor surface f, the magnetic force is sufficiently exerted to attract the third convex member 25 and guide the projection in a nested manner. 15 is raised vertically, and the engagement plate portion 25a of the third convex member 25 can be reliably engaged with the engagement rib 40b of the guide rail 40. Therefore, for example, the sliding door is removed to prevent the sliding door side magnet M and the floor F side guide protrusion 15 from being separated too much because the gap d between the sliding door 10 and the floor surface f is large. It is no longer necessary to adjust the gap between them, and it is no longer necessary to replace the originally expensive magnet M with a larger ferromagnetic material so that the magnetic force reaches the guide protrusion 15 away from the guide projection 15. It can also be reduced.

  On the other hand, in the sliding door guide device R, as shown in FIG. 9B, when the gap d between the sliding door 10 and the floor surface f is small, the suction table 45 of the magnetizing means 29 and 30 Although the abutting portion 45b abuts against the floor surface f, the suction table 45 is in a free state in which the base end portion is pivotally supported within the storage case 35 so as to be freely swingable. When the vehicle is moved, it travels while slipping on the floor surface f at the contact portion 45a at the tip, so that even if the gap d between the sliding door 10 and the floor surface f is small, the sliding door 10 The sliding door 10 can be guided so as not to sway without hindering traveling.

F Floor G1 Floor side guide G2 Door side guide R Sliding door guide device S Opening portion M Magnet a, b, c Guide body x, y, z Mounting hole 10 Sliding door 10a Sliding door lower end surface 12 Guide groove 14 Mounting case 15 Guide protrusion 23 1st convex member 24 2nd convex member 25 3rd convex member 29 * 30 Magnetic attachment means 32 Lifting port 35 Storage case 35e Locking step part 40 Guide rail 40b Engagement rib 45 Adsorption stand 45b Contact part 45c Engagement Stop shaft

Claims (4)

Sliding door guide device that guides a sliding door that is recessed in the length direction of the lower end surface and is movably suspended in the opening and closing direction with a gap between it and the floor so that it does not swing sideways when opening and closing In
A floor side guide in which magnetic material guide protrusions are inserted into a plurality of mounting holes recessed at intervals on the floor surface under the trajectory where the sliding door moves, and a door side guide provided in the guide groove. Consists of
The door-side guide is laid between a pair of magnetic attachment means that are fitted into both ends of the guide groove and attracts the guide protrusion by magnetic force to rise, and the magnetic attachment means in the guide groove A guide rail that engages the guide protrusion,
The magnetic attachment means includes a storage case having an opening at the bottom, a suction stand pivotally supported by a base end in the storage case, and a magnet attached to the suction stand. The sliding door guide device is characterized in that the suction table is locked to the storage case at an inclination angle position where a contact portion at a tip of the suction table protrudes from the elevator opening by a predetermined height.   The sliding door guide device according to claim 1, wherein the magnetizing means is configured such that the magnet is slidably mounted on the adsorption table.   3. The sliding door guide device according to claim 1, wherein the floor side guide is configured by incorporating the guide protrusions by stacking a plurality of convex members in a nested manner. 4.   The guide protrusion is formed by forming an innermost convex member with an elongated magnetic plate material, and bending the upper end of the magnetic plate material to form an engagement plate portion that engages with the guide rail. Item 4. The sliding door guide device according to Item 3.

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