Lower bracing device of top-railed sliding door

Abstract

To provide a lower bracing device of a top-railed sliding door whose guide piece is prevented from being damaged when an object collides with the guide piece in a projecting state.SOLUTION: A lower bracing device of a top-raised sliding door includes a floor surface installation member 2 made up of a base 3 installed on a floor surface and a guide piece 4 whose base end part is accommodated in the base 3 through a support shaft 5 in an oscillation and projection manner and which is provided with a magnet 6, in which the guide piece 4 is stored for oscillation by 90° on both sides across an erected position.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lower vibration prevention device for a hanging door, and more particularly to a lower vibration prevention device for a hanging door that is designed to prevent accidents involving breakage of a guide piece. [Background technology]

[0002] Conventionally, a lower vibration-stopping device for a hanging door has been known in which a guide pin or guide piece that is attached to a floor mounting member installed on the floor surface and can be protruded by magnetic force is inserted into a guide groove formed on the underside of the hanging door, guiding the hanging door which is hung from a ceiling rail via a runner (see, for example, Patent Documents 1 and 2).

[0003] However, in conventional lower vibration prevention devices for hanging doors, the floor mounting components, including the guide pins and guide pieces, are thick, so it is necessary to perform processing such as drilling holes in the floor surface where the floor mounting components are to be installed, which results in a problem that the installation work is time-consuming.

[0004] In consideration of this problem, the present applicant previously proposed a lower vibration-stopping device for hanging doors that reduces the thickness of the floor-mounted component, including the guide piece, eliminating the need for processing such as drilling holes or forming recesses in the floor surface in order to install the floor-mounted component (see Patent Document 3). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 11-71954 [Patent Document 2] Japanese Patent Application Publication No. 2-229382 [Patent Document 3] JP 2019-70307 A Summary of the Invention [Problem to be solved by the invention]

[0006] The lower vibration-stopping device 1 for a hanging door disclosed in Patent Document 3, as shown in Figures 5 to 7, comprises a base 3 installed on a floor surface F, a floor surface mounting member 2 consisting of a guide piece 4 equipped with a magnet 6 whose base end is stored in this base 3 via a support shaft 5 so as to be able to swing out and protrude, and a guide groove member 7 arranged on the hanging door D into which the swinging protruding guide piece 4 of the floor surface mounting member 2 is inserted, and which has a strip-shaped magnetic body 8 in the longitudinal direction of the top surface of the guide groove 71 to which the guide piece 4 equipped with the magnet 6 is attracted. In this case, the outer surface of the base 3 of the floor mounting member 2 is covered with a base cover 9.

[0007] In this lower vibration-stopping device 1 for a hanging door, the guide piece 4 is constructed from a plate-like member having locking protrusions 41 formed on both sides of the tip thereof that protrude in the width direction, and the guide groove member 7 is constructed by forming engagement portions 72 on both side walls of the guide groove 71 in the longitudinal direction of the guide groove 71, with which the locking protrusions 41 of the guide piece 4 are locked, and the width dimension W1 of the tip portion where the locking protrusions 41 of the plate-like member constituting the guide piece 4 are formed is set to be smaller than the width dimension W2 of the opening of the guide groove 71 of the guide groove member 7.

[0008] Swing restriction protrusions 42 for restricting the swing range of the guide piece 4 are formed on both sides of the base end of the guide piece 4 so as to protrude in the width direction of the guide piece 4 . The swing restriction protrusion 42 is accommodated in a swing restriction protrusion accommodating portion 32 formed in the base 3, so that the swing range of the guide piece 4 can be restricted.

[0009] The base 3 is provided with a support portion 31 that supports the outer surface of the base end portion of the plate-like member that constitutes the guide piece 4 and protrudes from the base 3 . As a result, the load acting on the guide piece 4, particularly the load acting in the width direction of the guide piece 4, is supported by the support portion 31 of the base 3, thereby reducing the load acting on the support shaft 5 and increasing the support strength.

[0010] Meanwhile, the lower vibration-stopping device 1 for a hanging door disclosed in Patent Document 3 has the advantage of ensuring that the guide piece is held securely and stably guiding the hanging door, while also reducing the thickness of the floor mounting component including the guide piece, eliminating the need for processing such as drilling holes or forming recesses to install the floor mounting component. However, it has the problem that the protruding guide piece 4 can be damaged by objects hitting it. This problem is also common to the lower vibration prevention devices for hanging doors disclosed in Patent Documents 1 and 2.

[0011] In consideration of the problems associated with the above-mentioned conventional lower vibration-stopping devices for hanging doors, the present invention aims to provide a lower vibration-stopping device for hanging doors that has the advantages of the lower vibration-stopping device for hanging doors disclosed in Patent Document 3, in that it reduces the thickness of the floor surface mounting member including the guide piece, and does not require processing such as drilling holes or forming recesses in the floor surface on which the floor surface mounting member is to be installed, while preventing the guide piece from being damaged when an object hits it in a protruding state. [Means for solving the problem]

[0012] In order to achieve the above-mentioned object, the lower vibration-stopping device for a hanging door of the present invention is a lower vibration-stopping device for a hanging door that is equipped with a floor surface installation member consisting of a base that is installed on the floor surface and a guide piece with a magnet attached, the base end of which is stored in the base via a support shaft so that it can swing outward, and is characterized in that the guide piece is stored so that it can swing 90 degrees on both sides of the upright position.

[0013] In this case, the guide piece can be a magnet housing case formed from a pressed part made of a stainless steel thin plate having a thickness of 0.25 to 0.5 mm, which covers the outer periphery of the magnet.

[0014] Also, a locking projection made of synthetic resin may be provided at the tip of the guide piece. Effect of the Invention

[0015] According to the lower vibration-stopping device for a hanging door of the present invention, the guide pieces are stored in a manner that allows them to swing 90 degrees on both sides of the upright position, thereby preventing the guide pieces from being damaged by objects hitting them in the protruding state. In addition, the lower vibration-stopping device for a hanging door of the present invention makes it possible to reduce the thickness of the floor mounting member consisting of the base and guide piece, so that it can be easily installed on the floor surface without the need for processing such as drilling holes or forming recesses in the floor surface on which the floor mounting member is to be installed. [Brief description of the drawings]

[0016] [Figure 1] 1A and 1B show an embodiment of a lower vibration-proof device for a hanging door according to the present invention, in which (a) is a plan view of a floor mounting member, and (b) is a front view of the same. [Diagram 2] 13A and 13B show the base of a floor mounting member of the lower vibration-stopping device of the hanging door, where FIG. 13A is an explanatory diagram of the base body, and FIG. [Diagram 3] 1 shows the guide piece of the floor mounting member of the lower vibration-stopping device of the same hanging door, where (a) is an explanatory diagram of the magnet storage case, (b) is an explanatory diagram of the locking protrusion, (c) is an explanatory diagram of the shaft hole member, (d) is an explanatory diagram of the magnet, and (e) is an explanatory diagram of the support shaft. [Figure 4] An explanatory diagram showing a method of assembling the floor surface installation member of the lower vibration prevention device of the same hanging door. [Diagram 5] 1A and 1B show a conventional lower vibration prevention device for a hanging door, in which (a) is a front view and (b) is a side view. [Figure 6] 1A and 1B show a floor mounting member of the lower vibration-stopping device of the hanging door, where (a) is a side view and (b) is a plan view. [Figure 7] 1A, 1B and 1C show a guide piece of a floor mounting member of the lower vibration-stopping device of the hanging door, where FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the lower vibration prevention device for a hanging door of the present invention will be described with reference to the drawings.

[0018] 1 to 4 show an embodiment of a lower vibration prevention device for a hanging door according to the present invention. As shown in Figure 1, this lower vibration-stopping device 1 for a hanging door is equipped with a floor-mounted member 2 consisting of a base 3 to be installed on the floor surface and a guide piece 4 equipped with a magnet 6, whose base end is stored in the base 3 via a support shaft 5 so that it can swing outward. The guide piece 4 is stored so that it can swing 90 degrees on either side of the upright position.

[0019] As shown in FIG. 2, the base 3 is made up of a base main body 30 and a support portion 31 that constitutes a bearing for the support shaft 5 that is assembled to the base main body 30. The base body 30 can be made of a metal such as zinc or a synthetic resin, and the support portion 31 can be formed of a pressed part made of a thin stainless steel plate having a thickness of 0.4 to 1.0 mm, in this embodiment, a thickness of 0.5 mm.

[0020] As shown in FIG. 3, the guide piece 4 is configured to cover the outer periphery of the magnet 6 with a magnet housing case 40 formed from a pressed part made of a thin stainless steel plate having a thickness of 0.25 to 0.5 mm, in this embodiment, a thickness of 0.3 mm. This allows the thickness of the guide piece 4 to be reduced while maintaining the necessary strength.

[0021] At the tip of the guide piece 4, a locking projection 41 made of synthetic resin is disposed so as to protrude in the width direction on both sides of the guide piece 4, and is wrapped around the magnet housing case . The lower surface of the locking projection 41 is formed as an inclined surface. The locking projection 41 of the guide piece 4 is locked with the engaging portion 72 of the guide groove 71 of the guide groove member 7, so that the guide piece 4 inserted in the guide groove 71 will not come off from the guide groove 71, and the guide piece 4 can be reliably held and stably guided to the hanging door D. Even if the guide piece 4 should come off from the guide groove 71, the magnet 6 can attract the guide piece 4 to be inserted into the guide groove 71 at any position in the longitudinal direction of the guide groove 71, so that the hanging door D can be stably guided.

[0022] At the base end of the guide piece 4, a shaft hole member 43 made of synthetic resin, through which the support shaft 5 is inserted, is attached to the magnet housing case 40.

[0023] This lower vibration prevention device 1 for a hanging door can be assembled by inserting the support shaft 5 through the shaft hole of the support part 31 of the base 3 and the shaft hole of the shaft hole member 43 of the guide piece 4, and assembling the support part 31 to the base main body 30, as shown in Figure 4.

[0024] In the hanging door lower vibration prevention device 1 configured as described above, the guide piece 4 of the floor installation member 2 is inserted into the guide groove 71 of the guide groove member 7 by the attraction action of the magnet 6 provided on the guide piece 4 to the magnetic body 8 provided in the guide groove 71 of the guide groove member 7, and this state is maintained. Its basic purpose is to guide the hanging door D.

[0025] Even if an impact force is applied to the hanging door D and it swings, the locking projection 41 of the guide piece 4 is locked with the engaging portion 72 of the guide groove 71 of the guide groove member 7, so that the guide piece 4 inserted in the guide groove 71 will not come off from the guide groove 71, and the guide piece 4 can be reliably held and the hanging door D can be stably guided. Even if the guide piece 4 should come off from the guide groove 71, the magnet 6 can attract the guide piece 4 to be inserted into the guide groove 71 at any position in the longitudinal direction of the guide groove 71, so that the hanging door D can be stably guided. Furthermore, this lower vibration-stopping device 1 for hanging doors makes it possible to reduce the thickness of the floor-mounted member 2 consisting of the base 3 and guide piece 4 (in this embodiment, the thickness of the guide piece 4 is formed to be 2.6 mm), so there is no need to perform processing such as drilling holes or forming recesses in the floor surface F on which the floor-mounted member 2 is to be installed, and it can be easily installed on the floor surface F. Furthermore, by storing the guide piece 4 in a manner that allows it to swing 90 degrees on either side of the upright position, it is possible to prevent the guide piece 4 in the protruding state from being damaged by an object (e.g., a vacuum cleaner when cleaning) hitting it.

[0026] The above describes the lower vibration prevention device for a hanging door of the present invention based on its embodiments, but the present invention is not limited to the configuration described in the above embodiments, and the configuration can be changed as appropriate within the scope of the spirit of the present invention. [Industrial Applicability]

[0027] The lower vibration-stopping device for a hanging door of the present invention reduces the thickness of the floor surface mounting member including the guide piece, eliminating the need for processing such as drilling holes or forming recesses in the floor surface on which the floor surface mounting member is to be installed, and has the characteristic of being able to prevent the protruding guide piece from being damaged by an object hitting it, making it ideal for use as a lower vibration-stopping device for a hanging door. [Explanation of symbols]

[0028] 1. Lower anti-vibration device for hanging doors 2 Floor installation parts 3. Bass 30 Base body 31 Support part 32 Swing restriction protrusion receiving portion 4 Guide piece 40 Magnet storage case 41 Locking protrusion 42 Swing restriction protrusion 43 Shaft hole component 5 spindle 6. Magnets 7 Guide groove member 71 Guide groove 72 Engagement part 8 Magnetic material 9 Base cover D Hanging door F Floor W1 Width dimension of the guide piece W2 Width dimension of the opening of the guide groove of the guide groove member

Claims

1. A lower vibration-stopping device for a hanging door is equipped with a floor-mounted member consisting of a base that is installed on the floor surface and a guide piece with a magnet attached, the base end of which is stored in the base via a support shaft so that it can swing outward, characterized in that the guide piece is stored so that it can swing 90 degrees on both sides of the upright position.

2. The lower vibration-stopping device for a hanging door as described in claim 1, characterized in that the guide piece is covered on the outer periphery of the magnet with a magnet housing case formed from a pressed part made of thin stainless steel plate 0.25 to 0.5 mm thick.

3. 3. The lower vibration prevention device for a hanging door according to claim 1 or 2, characterized in that a locking projection made of synthetic resin is disposed at the tip of the guide piece.

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