JP2863136B2 - Sliding door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device which is hung on an upper rail and travels without using a lower rail.
Specifically, the present invention relates to a sliding door device of a type that performs steadying at a lower end of a door in a thickness direction of the door.

[0002]

2. Description of the Related Art In this type of sliding door apparatus, for example, a sliding door is hung freely on an upper rail fixed to an upper part of a frontage, and the frontage is opened and closed by sliding the door, for example. . This type is adopted when it is difficult to provide rails on the floor, or because we do not want to provide rails on the floor from the viewpoint of appearance and cleanability, etc. The lower end swings in the direction of the thickness of the door when the vehicle is running and when the vehicle is closed. In order to avoid this, Japanese Unexamined Utility Model Publication No. Sho 61-189968 discloses that the swing of the door is controlled by a steady rest which is fixed to the floor and a steady rest which is fixed to the lower end of the sliding door at the front end in the running direction. It is disclosed to regulate.

The steady rest is formed in a substantially L-shape or a J-shape, and these guide pieces are formed on the lower end surface of each sliding door so as to be engaged in a guide groove extending in the running direction. Has become.

[0004]

By the way, the construction of the steady rest by means of the steady rest is very important for improving the usability of this kind of sliding door device, but its existence lowers the running performance of the sliding door. There must not be. From such a viewpoint, the width of the guide groove of the sliding door is set to have a margin with respect to the thickness of the guide piece. Ideally, the thickness of the guide piece should be as close as possible to the width of the guide groove from the viewpoint of restricting runout.However, considering the effects of sliding door mounting errors, guide groove dimensional errors, etc. In order to maintain the running performance, it is necessary to have some allowance in the groove size.

[0005] However, there is a problem that, due to the extra clearance existing in the groove, when the sliding door is opened and closed, it easily rattles due to wind, vibration, or the like, and an unpleasant rattling sound is generated.

Therefore, the present invention does not impair the running performance.
An object of the present invention is to provide a sliding door device capable of favorably preventing backlash during closing or opening while maintaining the relationship between the guide groove and the steady rest.

[0007]

The gap between the groove and the engagement portion of the steady rest is eliminated at the position where the sliding door is closed, and the advantage of this type of sliding door device is that "the lower rail exists. The purpose of the present invention is to emphasize "improvement in appearance by not doing so" so that the appearance is not inferior to the current configuration. More specifically, according to the first aspect of the present invention, the sliding door is suspended on the upper rail so as to be able to run freely, and the lower end face is formed with a guide groove extending in the running direction, and is fixed to the floor surface or the lower end side face of the adjacent sliding door. And a guide piece extending from the fixed seat and being engaged with the guide groove; and a guide for the steady stop metal attached to the end of the guide groove at a closed position of the sliding door. And a holding member for holding the piece.

In the invention according to claim 2, in the structure according to claim 1, the holding member is provided in a housing embedded in an end of the guide groove, and is provided inside the housing to open the guide groove side. And a cushioning member provided at a collision site on the inner rear side of the housing.

According to a third aspect of the present invention, in the configuration of the second aspect, the holding member is formed of a pair of elastic pieces,
A configuration is adopted in which a guide portion wider than the thickness of the guide piece is provided on the opening side and a narrow holding portion follows the guide portion.

According to the fourth aspect of the present invention, the first or second aspect is provided.
In the configuration described above, the holding member has a configuration in which a holding member is disposed at one end of a guide groove in which a guide piece is located at a closing position of the sliding door.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The sliding door device 1 according to this embodiment may have a triple structure including sliding doors 2, 3, and 4. The sliding doors 2, 3, and 4 are runably suspended on the corresponding rails R2, R3, and R4 via a runner member 5 attached to the upper end. Each of the sliding doors 2, 3, and 4 can be adjusted up and down by rotating the adjustment screw 6.

A guide groove 8 extending in the running direction is formed in the lower end surface 7 of each of the sliding doors 2, 3, and 4, and a guide piece 12 of anti-sway fittings 10, 11 is engaged in the guide groove 8.
The guide groove 8 is extended to both ends of the sliding doors 2, 3, and 4 in the traveling direction, and has a width W larger than the thickness w of the guide piece 12,
The guide piece 12 is bored at a depth D larger than the engagement dimension d. Accordingly, each of the sliding doors 2, 3, and 4 is pulled while being guided by the guide piece 12 with a margin of a wide width W-a thickness w. One of the steady rests 10 includes a fixed seat 13 fixed to the floor F, and a guide piece 12 which is vertically raised from the fixed seat 13 and is engaged with the guide groove 8 of the sliding door 2.
It is screwed from the countersink hole 14 of the fixed seat 13. Also, the other steady rest 11 is fixed to the lower end side surface 9 of the adjacent sliding doors 2, 3 and guides the adjacent sliding doors 3, 4 bent from the fixed seat 15 into a substantially U-shape. It has a guide piece 12 engaged with the groove 8, and is fixed to the lower end side surface 9 by being screwed from the countersunk hole 16 of the fixing seat 15.

A holding member 20 is attached to each of the sliding doors 2, 3, and 4 at a closed position 8a at one end of the guide groove 8 in the longitudinal direction. That is, the holding member 20 is embedded at the closed position at one end of the guide groove 8 so as to be located on the same line as the guide groove 8.

The holding member 20 is located at one end 8a of the guide groove 8 and is embedded in the groove 8b wider than the guide groove 8, and is provided inside the housing 21 to open one side. The holding member 22 includes a buffer member 23 provided on the other side of the holding member 22. In this embodiment, the housing 21 is made of ABS resin, and the holding member 2 is made of ABS resin.
Reference numeral 2 denotes a leaf spring (SK5) having a thickness of 0.5 mm.
Reference numeral 3 is formed of rubber (EPT).

The housing 21 is formed in a case shape having an opening 24 in which the side face and the lower face of the guide groove (the face on which the engaging portion of the guide piece 12 moves) are opened, and the other side (the back side).
Is integrally formed with a fixing base 25 having a set screw insertion hole 26 and a concave portion 27, and the cushioning material 23 is inserted from above and placed on the fixing base 25. In addition, locking edges 28 that support the lower end of the holding member 22 are formed on both sides of the lower end center portion of the housing 21.

The holding member 22 is composed of a pair of elastic pieces 30, and the curved base portions 35 of the elastic pieces 30 are connected in a U-shape. The front ends of the elastic pieces 30 are bent outward at the front ends of the holding members 22, so that the anti-sway fittings 10, 1 are bent.
The guide piece 31 having a width W wider than the thickness w of the guide piece 12
Are formed. On the other side of the elastic piece 30, a holding portion 32 having a width smaller than the thickness w of the guide piece 12 is formed, and the holding portion 3 gradually increasing in width from the narrow width to impart elasticity.
3 is set.

The cushioning member 23 is used to closely fit the main body 40 inserted into the housing 21, the convex piece 41 fitted into the concave portion 27 of the fixed base 25, and the upper opening 29 of the housing 21. And a protruding flange portion 42. Further, a screw insertion hole 43 penetrating through the main body portion 40 and the flange portion 42 and communicating with the insertion hole 26 on the housing side is formed.

At the time of assembly, the holding member 22 is pushed horizontally into the housing 21 from the front opening 24 so that the curved base 35 is aligned with the peripheral edge of the fixed base 25. It is positioned in contact with both ends. Next, when the cushioning member 23 is pushed from above the housing 21, the holding member 22 is held by the cushioning member 23 and the housing 21 so that the holding member 22 is prevented from falling off, and the lower end of the elastic piece 30 is held by the locking edge 28. Supported to prevent downward displacement.

The holding member 20 described above is pushed into the wide groove 8b and fixed with screws 44 for mounting. In this case, the holding member 20 is provided between the front face of the main body 40 of the cushioning material 23 and the convex piece 41.
The guide piece 12 of the steady rest 10 is flush with the front of
Constitute a cushioning surface. Cushioning material 2 as above
3 facilitates the assembling work in combination with the function of preventing the holding member 22 from coming off.

Next, a catch operation when the sliding door 2 is closed will be described. Guide piece 1 for steady rest fittings 10 and 11
2 is moved along the wide width W of the guide groove 8 with its thickness w, and approaches the guide piece 31 of the holding member 22. When the sliding door 2 is closed from this proximity state, the guide piece 12 smoothly enters the holding portion 32 by the guide function of the guide piece 31, pushes and expands the holding portion 32, and further enters the inside. When the closing operation of the sliding door 2 is strong, the guide piece 12 is
However, since the cushioning material 23 is present at this portion, the impact (and eventually abrasion) between the members is reduced, and the generation of impact noise is also suppressed. The same applies to the other sliding doors 3 and 4.

The guide piece 12 of the steady rest 10 caught by the holding member 20 is held on the center line of the guide groove 8 without any gap by the pressing force of the elastic piece 30. The rattling between the anti-sway fittings 10 is suppressed.

The holding portion 32 of the holding member 22 may be formed so as to have a certain width in the traveling direction. , The degree of freedom of entry of the steady rest 10 (catch tolerance) can be increased.
That is, even if the direction of the guide piece 12 is shifted inside the holding member 20, the rattling preventing function is favorably maintained.

The holding member 20 has a shape covering the holding member 22 over the entire length thereof.
In this case, the holding member 20 can be prevented from being displaced, accidental or excessive deformation of the holding member 22 can be prevented, and the life of the catch function can be extended.

In the above embodiment, the holding member 22 is constituted by a pair of elastic pieces 30 connected in a U-shape. However, the holding member 22 is constituted by one elastic piece 28 and It is also possible to adopt a configuration of holding.

Further, at the other end 8c of the guide groove 8, although not shown, the guide piece 31 is directed toward the guide groove, and the holding member 20
Can be embedded and mounted. In this case, rattling can be prevented at the open positions of the sliding doors 2 to 4 and can be used together with the closed position.

[0026]

According to the present invention, the holding member for holding the guide piece of the steady rest is embedded and mounted on the extension of the guide groove formed on the lower end surface of the sliding door. In the process, it can be used smoothly as before, and when the sliding door is closed, it is possible to prevent run-out and rattling at the lower end of the door.

In particular, since it is attached to the end of the guide groove, the conventional steady rest and the guide groove can be used as they are without deteriorating the appearance, and the existing structure can be easily changed. Can be added.

[Brief description of the drawings]

FIG. 1 is a bottom view of a main part of a sliding door device showing an embodiment of the present invention.

FIG. 2 is an enlarged exploded perspective view of a guide piece and a holding member of the steady rest.

FIG. 3 is a bottom view of a main part before closing.

FIG. 4 is a bottom view of a main part in a closed position.

FIG. 5 is a sectional view of a main part in a closed position.

[Explanation of symbols]

 2, 3, 4 Sliding door 5 Runner member 8 Guide groove 8a One end of guide groove 8b Wide groove of guide groove 8c The other end of guide groove 10, 11 Anti-sway fitting 12 Guide piece 13, 15 Fixed seat 20 Holding member 21 Housing 22 clamping member 23 cushioning material

Continuation of the front page (56) References JP-A-6-235275 (JP, A) JP-A-8-82152 (JP, A) JP-A-7-269221 (JP, A) , U) Fully open 1979-125445 (JP, U) Fully open 1979-502922 (JP, U) Fully open 1979-519761 (JP, U) Fully open 1986-189968 (JP, U) (58) Surveyed field (Int.Cl. ⁶ , DB name) E05D 13/00-15/12 E05F 7/04-17/00 E05C 21/00 E06B 3/46

Claims (4)

(57) [Claims] 1. A sliding door suspended on an upper rail so as to run freely and a guide groove formed in a lower end face extending in a running direction, a fixed seat fixed to a floor surface or a lower end side face of an adjacent sliding door, and the fixed seat. And a holding member that is attached to the end of the guide groove and holds the guide piece of the steady stop at the closed position of the sliding door. A sliding door device comprising: 2. A holding member embedded in an end of a guide groove, a holding member provided inside the housing, opening the guide groove side and holding a guide piece, and a holding member inside the housing. The sliding door device according to claim 1, further comprising a cushioning material provided at a collision portion on a rear side. 3. The holding member is formed of a pair of elastic pieces, has a guide portion wider than the thickness of the guide piece on the opening side, and has a narrow holding portion following the guide portion. 2. The sliding door device according to 2. 4. The sliding door device according to claim 1, wherein the holding member has a holding member disposed at one end of a guide groove in which the guide piece is located at a closed position of the sliding door.