JPH02229382A - Guide device for sliding door - Google Patents

Abstract

PURPOSE:To prevent the collection of dust by forming a guide channel on the lower surface of a sliding door, also providing a recessed part on a floor surface to mount a guide piece thereon, and providing a permanent magnet on either one of the guide piece and the guide channel and a magnetic body on the other. CONSTITUTION:A guide channel 2 is formed on the lower surface of a sliding door 1 having the upper part supported in such a manner as to be capable of sliding, and a magnetic body 3 is mounted on the upper surface of the guide channel 2. A plurality of supporting equipments 5 having a recessed part 6 the upper part of which is opened are buried in a floor surface 4 along the carrying route of the sliding door 1. A pin 8 is mounted between the both side surfaces of the recessed part 6 to rotatably support one end part of a guide piece 9 by the pin 8. A permanent magnet 10 magnetically connecting with the magnetic body 3 provided in the guide channel 2 of the sliding door 1 is buried in the other end of the guide piece 9. The sliding door 1 is moved in the closing direction, the guide piece 9 is raised by the magnetic effect between the permanent magnet 10 and the magnetic body 3 and inserted into the guide channel 2 to guide the lower part of the sliding door 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a guide device for a sliding door. [Prior Art] In a sliding door device in which a hanging wheel is attached to the upper part of the sliding door and the hanging wheel is placed on a rail attached to the ceiling to support the sliding door in a freely sliding manner, the shaking of the lower part of the sliding door when sliding is suppressed. To prevent this, a rail is usually laid on the floor to guide the bottom of the sliding door. [Problems to be Solved by the Invention] By the way, since the rail guiding the sliding door always protrudes from the floor surface, dust accumulates at the corners of the rail, and it is very troublesome to remove the dust.

There is also the danger of tripping over the rail. Therefore, an object of this invention is to provide a sliding door guide device that does not collect dust and prevent tripping accidents. [Means for Solving the Problems] In order to solve the above problems, in the present invention, a guide groove extending in the sliding direction of the sliding door is formed on the lower surface of the sliding door whose upper part is slidably supported, and is provided with a plurality of four parts along the transfer path of the sliding door, one end of which is supported in the concave part so as to be able to rise and fall freely, and a guide piece that projects above the floor surface and fits into the guide groove of the sliding door when raised, is provided, We adopted a structure in which a permanent magnet is attached to one end of the piece and the guide groove of the sliding door, and a magnetic material that is magnetically coupled to the permanent magnet is attached to the other. [Operation] With the above configuration, the guide piece provided on the floor and the guide groove on the bottom surface of the sliding door are magnetically coupled, so when the sliding door is slid in the closing direction, the guide piece stands up and fits into the guide groove. Conversely, when the sliding door is pulled away from the guide piece, the guide piece falls down and sinks into the recess.

〔Example〕

Embodiments of this invention will be described below with reference to FIGS. 1 to 8. As shown in FIGS. 1 to 5, a guide groove 2 along the sliding direction of the sliding door 1 is formed on the lower surface of the sliding door 1 whose upper portion is slidably supported. A magnetic body 3 having approximately the same width as the guide groove 2 is attached to the upper surface of the guide groove 2 over its entire length. On the other hand, floor surface 4
A plurality of supports 5 are embedded along the transfer path of the sliding door 1. This support 5 has a recess 6 with an open upper part, and a flange 7 is provided around the upper part, and the flange 7 is fixed to the floor by screwing it to the floor. A pin 8 is attached between both sides of the recess 6, and one end of a guide piece 9 is rotatably supported by the pin 8. Therefore, the guide piece 9 can rise and fall freely around the bin 8, and when standing up, the other end protrudes from the floor surface 4 as shown in FIGS. The standing position is maintained.

Furthermore, when lying down, the guide piece 9 sinks into the recess 6, as shown in FIG.

The other end of the guide piece 9 has a size that can be inserted into the guide groove 2 of the sliding door, and is embedded with a permanent magnet 10 that magnetically couples with the magnetic body 3 provided in the guide groove 2 of the sliding door 1. There is.

Now, when the sliding door 1 is moved in the closing direction, when the tip of the magnetic body 3 in the sliding direction faces onto the guide piece S, the permanent magnet 10 and the magnetic body 3 are magnetically coupled. The guide piece 9 stands up and fits into the guide groove 2 on the lower surface of the sliding door 1, thereby guiding the lower part of the sliding door 1.

Further, when the sliding door 1 is moved in the direction of opening, when the rear end of the magnetic body 3 in the sliding direction passes over the guide piece S,
A rotational force acts on the guide piece 9 in the direction of incline. Therefore, the guide piece 9 falls down and sinks into the recess 6 as shown in FIG. In order to reliably lower the guide piece 9, an iron piece 12 is provided below the bottom plate 11 of the support 5 to be magnetically coupled to the permanent magnet 10 of the guide piece 9. Note that the bonding force between the permanent magnet 10 provided on the guide piece 9 and the iron piece 12 is that the permanent magnet 10 is bonded to the iron piece 12 through the bottom plate 11 of the support 5 when they are bonded.
0 and the magnetic material 3 provided on the sliding door 1. 6 to 8 show another embodiment of the sliding door guide device, in which a magnetic material 3 is attached to the tip of the guide groove 2 on the bottom surface of the sliding door 1. Further, a locking piece 14 is formed on the outer periphery of one end of the guide piece 9, and the locking piece 14 is attached to the stepped portion provided on the bottom surface of the support 5 when the guide piece S is erected.
Furthermore, the insertion hole 15 into which the pin 8, which serves as a rotational fulcrum of the guide piece 9, is inserted is an elongated hole extending in the direction of both ends of the guide piece 9.

Note that the same parts as in the previously described embodiment are designated by the same reference numerals and the explanation thereof will be omitted. In the above configuration, when the sliding door 1 is moved in the closing direction, the guide piece 9 stands up due to the magnetic coupling between the magnetic body 3 and the permanent magnet 10, as shown in FIG. 3 passes, the guide piece 9 descends along the pin 8 while remaining in an upright position, and the locking piece 14 is moved as shown in FIG.
engages with the stepped portion 13. Due to this retention, the upright state can be maintained even if there is no magnetic body 3 on the guide piece S. Conversely, when the sliding door 1 is slid in the opening direction, the guide piece 9 is pulled upward due to the magnetic coupling between the magnetic body 3 and the permanent magnet 10, as shown in FIG. Since the magnetic body 3 moves in the direction in which the guide piece 9 falls, the guide piece 9 rotates and sinks into the recess 6 as shown in FIG. In the case of the embodiment, the magnetic body 3 is provided on the sliding door 1 side, but a permanent magnet having a different polarity from the permanent magnet 10 of the guide piece 9 may be attached on the sliding door 1 side. It is also possible to attach a permanent magnet to the sliding door 1 side and attach a magnetic material to the guide piece S. [Effects] As described above, in the process of closing the sliding door, the guide pieces provided on the floor sequentially protrude from the guide groove of the sliding door to guide the bottom surface of the sliding door, and also in the process of storing the sliding door. Since the guide pieces installed on the floor are gradually recessed from the floor surface, the floor surface is flat and there is no need to worry about dust accumulating or tripping and injuring yourself.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the entire sliding door guide device according to the present invention, Fig. 2 is a partially enlarged sectional view of the same as above, and Fig. 3 is an enlarged sectional view taken along the line ■-■ in Fig. 1. , FIG. 4 is a cross-sectional view showing the guide piece in the lying state, FIG. 5 is a cross-sectional view showing the sliding door in the closed state in FIG. 1, and FIG. 6 is a cross-sectional view showing another embodiment of the sliding door guide device. 7, and 8 are cross-sectional views showing the operating state of the guide piece described above.

Claims (1)

[Claims] (1) A guide groove extending in the sliding direction of the sliding door is formed on the lower surface of the sliding door whose upper part is slidably supported,
A plurality of recesses are provided in the floor surface along the transfer path of the sliding door, and one end of the guide piece is supported in the recess so as to be able to rise and fall freely, and that protrudes above the floor surface and fits into the guide groove of the sliding door when the door is erected. A guide device for a sliding door, comprising: a permanent magnet attached to either the tip of the guide piece or a guide groove of the sliding door, and a magnetic body magnetically coupled to the permanent magnet attached to the other side.