JPH09170385A - sliding door - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To close a gap between a lower edge of a sliding door and a lower frame member. SOLUTION: A fitting groove 34, which is long in the left-right direction and is opened downward, is formed in the lower part of the sliding door 11, and a clearance-closing piece 37, which is long in the left-right direction, is fitted in the fitting groove 34 so as to be vertically movable. The blocking piece 37 contacts the lower frame member 4 by its own weight.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a sliding door.

[0002]

2. Description of the Related Art Conventionally, the following sliding doors of this type are known. That is, door rollers are provided on the left and right sides of the lower part of the sliding door, and these door rollers are fixed casings,
It is known that the fixed casing has a wheel receiver which is vertically adjustable and a wheel which is rotatably provided on the wheel receiver. In the above description, the wheel receiver, more specifically, the wheel is adjustable in the vertical position, when the sliding door is closed, it is an appearance that the left and right side surfaces of the sliding door are brought into close contact with the left and right vertical frame members as much as possible. Although required above, it is a structure to correspond to it. That is, by adjusting the height positions of the left and right wheels, the sliding door itself is slightly adjusted to the left and right with respect to the lower frame member, and the left and right side surfaces of the closed sliding door are closely contacted with the left and right vertical frame members as much as possible. It can be done.

[0003]

Disadvantages of the prior art The conventional sliding door has the following disadvantages. That is, in the sliding door, the lower part of the wheel exposed downward from the lower end of the sliding door fits into the guide groove of the lower frame material (the guide groove of the threshold). A gap is inevitably formed between the lower frame member and the lower frame member, and in particular, when the difference in height between the left and right wheels becomes large, the drawback is large.

[0004]

[Means for Solving the Disadvantages] The present invention employs the following means in order to eliminate the above disadvantages. The invention according to claim 1 is a sliding door in which at least two door rollers are provided in the lower portion of the sliding door, and the wheels of these door rollers are vertically adjustable, and in the lower portion of the sliding door, a fitting groove that is long downward in the left-right direction is opened. Is formed, and a gap closing piece that is long in the left-right direction is fitted in the fitting groove so as to be vertically movable, and the gap closing piece contacts the lower frame member by its own weight.

[0005]

The first aspect of the present invention has the following functions. The gap between the lower edge of the sliding door and the lower frame member can be closed by the gap closing piece.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In this description, “front” refers to the front side of FIG. 1, “back” refers to the back side, “left” refers to the left side in FIG. 1, and “right” refers to the right side in FIG.

The frame 2 of the sliding door device 1 has an upper frame member 3, a lower frame member 4 and left and right vertical frame members 5. The upper frame member 3 has a pair of front and rear upper guide rails 7 made of an aluminum extruded material which is long in the left-right direction, and the lower frame member 4 has a lower guide rail made of a pair of front and rear aluminum extruded materials which are long in the left-right direction. Have eight.

A front sliding door 11 is guided by the front upper guide rail 7 and the front lower guide rail 8 so as to be movable left and right as described in detail below. That is, the wheels 21 of the door roller 13 provided in each of the lower left and right portions of the sliding door 11 are guided by the lower guide rails 8 and the axes of the upper and left portions of the upper sliding door 11 are vertically oriented. The guide roller 14 thus provided is guided by the upper guide rail 7.

The door roller 13 is fitted in a recess 17 formed in the lower portion of the sliding door 11 and is stopped. The door roller 13
Is a fixed casing 19 whose lower side is open, a wheel receiver 20 provided on the fixed casing 19 so as to be swingable up and down by a pivot 22 having an axis centered in the front-rear direction, and rotatably provided on the wheel receiver 20. It has a wheel 21 and a height adjusting device 24 for vertically moving the wheel receiver 20. The height adjusting device 24 includes a screw shaft 25 rotatably provided on the fixed casing 19 with its axis oriented in the left-right direction, and a nut piece 2 screwed onto the screw shaft 25.
6 and a slanted top wall 2 of the wheel receiver 20 having a slit 28 into which the lower portion of the nut piece 26 is fitted and which is long in the left-right direction.
9 and 9. With the configuration as described above, the screw shaft 2
By rotating 5 the lateral position of the nut piece 26 can be adjusted, the wheel receiver 20 can be swung up and down, and ultimately the height position of the wheel 21 can be adjusted.

A groove 31 (left and right ends communicating with the recess 17) that is long in the left-right direction is formed in the lower part of the sliding door 11, and a T-shape that is long in the left-right direction and opens downward is formed in the groove 31. A rail member 33 having a fitting groove 34 formed of a groove is fitted therein, and a gap closing piece 37 made of synthetic resin or the like having a flexibility in the fitting groove 34 of the rail member 33 and having no flexibility moves up and down. It is freely fitted, and this gap closing piece 37
A retaining member 38 is provided on the upper part of the fitting groove 34. The gap blocking piece 37 is adapted to enter the wheel guide groove 9 of the lower guide rail 8 by its own weight and contact the bottom surface of the wheel guide groove 9. Needless to say, the retainer 38 is adapted to freely move up and down in the fitting groove 34.

The rail member 33 is made of an extruded aluminum material or the like, and has a hole 35 penetrating therethrough in the left-right direction.
The protrusion 40 is formed in the fixed casing 19 so as to be fitted into both ends of the hole 35. With such a structure, after the protrusions 40 of the left and right door rollers 13 are fitted into the holes 35, the left and right door rollers 13 are fixed to the sliding door 11, so that the rail member 33 is held by the left and right door rollers 13. Fixed to.

Although not shown in detail, the rear sliding door 11 has the same structure as the front sliding door 11.

[0013]

[Modifications and the like] Modifications and the like will be described below. (1) A pair of front and rear gap closing pieces 34 may be provided for one sliding door 11. In this case, the gap blocking piece 34 is placed on the upper surface of the lower frame member 4. (2) The structure of the height adjusting device 24 is arbitrary. (3) In this specification, the blockage includes not only complete blockage but also almost blockage. (4) In this specification, the T-shaped groove means a groove in which projecting edges facing each other are formed in the opening edge portion, and the sectional shape is T.
The grooves other than the V-shaped groove include those in which projecting edges facing each other are formed at the opening edge. (5) The fitting groove 34 may be formed directly in the sliding door 11, and the gap closing piece 37 may be fitted in the fitting groove 34 so as to be vertically movable.

[0014]

According to the present invention, the following effects can be obtained by the above-described configuration. According to the invention of claim 1, the gap between the lower end edge of the sliding door and the lower frame member can be closed by the gap closing piece to enhance the airtightness of the sliding door device. According to the invention of claim 1, regardless of the vertical position of the wheels,
Since the gap blocking piece comes into contact with the lower frame member to automatically close the gap between the lower edge of the sliding door and the lower frame member, it is not necessary to separately move the gap blocking piece up and down. According to the invention of claim 2, since the rail member and the gap blocking piece are integrally assembled, the work of attaching the gap blocking piece to the sliding door is easy. According to the invention of claim 3, the gap closing piece enters the wheel guide groove formed in the lower frame member, and the lower end of the gap closing piece comes into contact with the bottom surface of the wheel guide groove. The contact portion between the lower end and the bottom surface of the wheel guide groove becomes difficult to see from the outside, and as a result, there is a gap between the lower end of the clearance block and the bottom surface of the wheel guide groove due to vertical undulations of the bottom surface of the wheel guide groove. Even if a problem occurs, the gap can be made to appear as if it were new.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention with an intermediate omission.

FIG. 2 is a partially crushed enlarged view of a portion A in FIG. 1;

FIG. 3 is an enlarged end view taken along line III-III of FIG. 2;

[Explanation of symbols]

 4 Lower frame material 11 Sliding door 13 Door roller 21 Wheel 34 Fitting groove 37 Gap closing piece

Claims (3)

[Claims] 1. A sliding door in which at least two door rollers are provided in a lower portion of the sliding door, and wheels of the door rollers are adjustable in vertical position, and a fitting groove which extends downward in the left-right direction is formed in the lower portion of the sliding door. A sliding door in which a gap closing piece that is long in the left-right direction is vertically movably fitted in the fitting groove so that the gap closing piece contacts the lower frame member by its own weight. 2. A downwardly-opening groove that is long in the left-right direction is formed in the lower portion of the sliding door, and a rail member having a fitting groove that is a downwardly-opening T-shaped groove that is long in the left-right direction is fixed to the groove. 2. The sliding door according to claim 1, wherein the gap closing piece is fitted in the fitting groove of the rail member so as to be movable up and down, and a stopper is provided at an upper portion of the gap closing piece located in the fitting groove. 3. The sliding door according to claim 1, wherein the gap closing piece is adapted to enter a wheel guide groove formed in the lower frame member.