JP3375075B2 - Sliding door braking system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking device for braking a lower supporting sliding door at a stroke end.

[0002]

2. Description of the Related Art A bottom-supporting sliding door is a slide-preventing sliding member that is fitted to a ceiling-side groove-shaped guide rail whose upper and lower sides are open at the upper part of the sliding door movably supported by a floor-side guide rail. , For example, a vertical shaft roller is pivotally supported. In this type of lower-supporting sliding door, when the sliding door is at the stroke end, it is pressed against the side surface of the steady rest sliding member, for example, the vertical axis roller, like the braking device used in the conventional hanging sliding door. If a braking member for braking is to be arranged, it is necessary to widen the width of the braking member disposition portion at least at the end of the ceiling side grooved guide rail into which the steady rest sliding member fits. In addition to the need for the groove-shaped guide rails, the structure on the ceiling side where the groove-shaped guide rails are mounted is also affected, which is a problem in practical use.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a sliding door braking device capable of solving the above-mentioned conventional problems, and the means will be referred to in the embodiments described later. Indicated by the reference numerals, the grooved guide rails 2 (the grooved rail portions 9) are open at one side in the vertical direction above the sliding door 3 movably supported by the floor side guide rails 1.
Steady rest sliding member (vertical shaft roller 12
a, 12b) provided in the lower supporting sliding door 3, the braked member 16 is provided horizontally above the sliding door 3 in the horizontal direction.
There is projected, wherein the groove-shaped guide rail 2, the braking body 18 in which the damp and presses the braking member 16 in the vertical direction when the sliding door 3 is in the stroke end is disposed, the brake body 1
8, at least one of the upper and lower side surfaces is for pressing the braked member
A braked portion formed by a spring (U-shaped spring plate 28)
A member to be braked fitting groove in which the end of the material 16 on the entry side is opened vertically
27, the braking body 18 moves parallel within a certain vertical range.
It is movably supported .

In the case of implementing the sliding door braking device of the present invention having the above-mentioned structure, a frictional resistance means (sandpaper-shaped belt-shaped uneven surface 32) for preventing the braking body 18 from falling due to gravity can be additionally provided.

When the sliding doors are arranged in two rows, inside and outside,
A downward steady rest sliding member (vertical shaft rollers 12a, 12b) and a member 16 to be braked are attached to the upper part of the inner sliding door 3, and a downward steady rest sliding member (vertical shaft) of the inner sliding door 3 is attached to the upper part of the outer sliding door 4. Shaft rollers 12a, 12
b) and an upper steady rest sliding member (vertical shaft rollers 14a, 14b) above the braked member 16 and the braked member 17 are attached, and the groove-shaped guide rail 2 is provided for the bottom steady rest of the inner sliding door 3 Lower groove-shaped rail portion 9 on the upper side to which the sliding members (vertical shaft rollers 12a and 12b) fit, and lower opening to which the upward steadying sliding members (vertical shaft rollers 14a and 14b) on the outer sliding door 4 fit. The upper groove-shaped rail portion 10 is integrally connected by the back plate portion 11, and the braking member 16 of the inner sliding door 3 is braked below the inside of one end of the groove-shaped guide rail 2. Along with the body 18, a braking body 19 that brakes the braked member 17 of the outer sliding door 4 can be disposed above the other end of the groove-shaped guide rail 2.

Further, the braking bodies 18 and 19 at both ends of the groove-shaped guide rail 2 are housed in a casing 20 internally fitted and fixed to the ends of the groove-shaped guide rail 2, and both braking body-internal casings 20 are With the same structure, the braking bodies 18 and 19 can be internally fitted and fixed to both ends of the grooved guide rail 2 by changing their directions so that the positions thereof are upside down.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
Is a floor side guide rail, 2 is a ceiling side grooved guide rail, 3
Is the sliding door inside (the side close to the groove guide rail 2 on the ceiling side),
Reference numeral 4 denotes a sliding door on the outer side (the side farther from the groove guide rail 2 on the ceiling side). The inner and outer sliding doors 3 and 4 are fitted with two horizontal grooves 5 and 8 on the floor guide rail 1 by fitting horizontal shaft rollers 5 and 6 installed near the front and rear ends of the floor, respectively. The rail 1 is supported so as to be movable in the front-rear direction.

The ceiling side groove type guide rail 2 includes a lower side groove type rail portion 9 which is open on the upper side and an upper side groove type rail portion 10 which is open on the lower side.
And the back plate 11 are integrally connected to each other,
Vertical shaft rollers 12a and 12b as steady-state sliding members that fit into the lower grooved rail portion 9 from above are respectively provided at the bearing plate 13 at positions near the front and rear ends of the upper end of the inner sliding door 3.
Vertical shaft rollers 14a and 14b, which are attached via a and 13b and are located near the front and rear ends of the upper end of the outer sliding door 4, are fitted to the upper groove-shaped rail portion 10 from the bottom as slide-stop sliding members, respectively. It is attached via plates 15a and 15b. As a result, inside and outside sliding doors 3, 4
Is movable in the front-rear direction along the guide rails 1 and 2 while being held in a vertical posture.

More specifically, as shown in FIG. 1, FIG. 2, FIG. 9 and FIG. 10, the bearing plates 15a and 15b attached to the outer sliding door 4 are arranged such that the inner and outer sliding doors 3 and 4 overlap each other. The upper end of the inner sliding door 3 and the upper sides of the bearing plates 13a, 13b attached to the inner sliding door 3 are overhung so as to be relatively movable in the front-rear direction and extend toward the ceiling groove guide rail 2. In the bearing plates 13a and 13b of the inner sliding door 3, the vertical shaft roller 12 is provided below the tip end portion that is loosely fitted in the ceiling groove guide rail 3.
a, 12b are rotatably supported, and the bearing plates 15a of the outer sliding door 4 are
15b includes bearing plates 13a and 13b of the inner sliding door 3.
The vertical shaft rollers 14a and 14b are pivotally supported on the upper side of the tip end portion which is loosely fitted in the ceiling-side groove-shaped guide rail 3.

Among the bearing plates 13a, 13b of the inner sliding door 3, the bearing plate 13a on the closing direction side of the inner sliding door 3 is closer to the sliding door closing direction than the vertical shaft roller 12a axially supported by the bearing plate 13a. At a distant position, a braked member 16 that is loosely fitted in a position close to the lower grooved rail portion 9 in the ceiling grooved guide rail 3 is horizontally mounted horizontally, and the inside of the bearing plates 15a and 15b of the outer sliding door 4 is attached. In the closing side bearing plate 15a of the outer sliding door 4, at the position apart from the vertical axis roller 14a axially supported by the bearing plate 15a in the sliding door closing direction side, the inside of the ceiling groove guide rail 3 is provided. The braked member 17 that is loosely fitted in a position close to the upper groove-shaped rail portion 10 is horizontally horizontally mounted. The braked members 16 and 17 have an oval shape whose side surface is long in the sliding door moving direction and have an appropriate thickness in a plan view, and are formed of, for example, synthetic resin.

As shown in FIG. 1, at one end of the ceiling-side groove-shaped guide rail 2, a brake body 18 for the inner sliding door 3 whose one end side is in the closed limit position is attached. A brake body 19 for the outer sliding door 4 having the other end side in the closed limit position is attached to the end. The braking bodies 18 and 19 are housed in a casing 20 having the same structure.

The casing 20 is fitted in the end portion of the groove guide rail 2 on the ceiling side in the rail length direction.
As shown in FIGS. 3 to 8, upper and lower side plate portions 21a and 21b which are fitted into the lower side groove type rail portion 9 and the upper side groove type rail portion 10 in the ceiling side groove type guide rail 2 and the upper and lower side side plate portions 21a, respectively. , 21b that connect the inner sides of the inner side parts of the ceiling side groove-shaped guide rail 2 and are adjacent to the back plate part 22 of the guide rail 2.
And a flange portion 2 connecting one ends of the upper and lower both side plate portions 21a and 21b and abutting on an end portion of the ceiling groove guide rail 2.
3 and the upper and lower side plate portions 2 that are integral with the flange portion 23
1a, 21b is provided with a small width outer side plate portion 24 connecting the outer side edges, and a vertical guide slit 25 provided on the inner side plate portion 22 at the other end of the upper and lower side plate portions 21a, 21b. When the flange portion 23 closes the end portion of the ceiling-side groove-shaped guide rail 2, the tip of the inner side plate portion 22 is screwed to the back-plate portion 11 of the ceiling-side groove-shaped guide rail 2 while being integrally formed of synthetic resin. It is fixed by 26.

The braking bodies 18 and 19 have the same structure and are composed of a movable member 27 having a U-shaped cross section and a U-shaped spring plate 28, which form a braking member fitting groove 27a. . The U-shaped spring plate 28 has a U-shaped end 27b that closes one end of the braked member fitting groove 27a of the movable member 27.
The turn portion 28a is fitted and locked so that the pair of upper and lower spring plate portions 2
8b and 28c are braked member fitting groove portions 27 of the movable member 27.
a pair of upper and lower spring plate portions 28 extending in a.
b and 28c open vertically in a V shape at the entry side end of the braked member, and the open end of the braked member fitting groove 27a of the movable member 27 similarly opens in a V shape. An approach guide portion 29 of the braked members 16 and 17 is configured.

In the braking members 18 and 19 having the above-mentioned structure, the end portion 27a of the movable member 27 is the outer plate portion 24 of the casing 20.
Is loosely fitted to the inside of the vehicle, and the member to be braked advancing guide 2
By fitting the protruding portion 30 projecting from the bottom surface of the end portion on the 9 side into the guide slit 25 of the casing 20, the protruding portion 30 comes into contact with the inner surface of the inner plate portion 22 of the casing 20 and is installed so as to be vertically movable in parallel. ing. The pressing plate 31 is fixed on the free end of the inner plate 22 of the casing 20. The pressing plate 31 has a triangular protruding portion 31 a that overlaps the bottom surface of the braked member advancing guide portion 29 of the movable member 27.
Is provided at a position slightly closer to one side than the center of the vertical width of the casing 20, and the projecting portion 31 a has an end portion (projecting portion 3) of the movable member 27 on the braked member advancing guide portion 29 side.
0) is prevented from floating from the inner side plate portion 22 of the casing 20, and the vertical translation range of the movable member 27 is regulated.

On the inner surface of the inner plate 22 of the casing 20 adjacent to the guide slit 25, a sandpaper-shaped band-shaped uneven surface 32 is in contact with the bottom surface of the movable member 27 over the entire width in the vertical direction. It is formed as a frictional resistance means for preventing the movable member 27 from falling by gravity.

The casing 20 containing the braking body 18 is
The center of the vertical translation range of the braking body 18 (movable member 27) regulated by the protrusion 31a of the pressing plate 31,
That is, the position of the protruding portion 31a is the casing 20
It is fitted to one end of the groove guide rail 2 on the ceiling side and fixed by a screw 26 in a direction that is deviated to the lower side from the center of the vertical width of the above, and is aligned with the movement path of the braked member 16 on the inner sliding door 3 side. Further, the casing 20 in which the braking body 19 is installed is
The center of the vertical translation range of the braking body 19 (movable member 27) regulated by the protruding portion 31a of the pressing plate 31,
That is, the position of the protruding portion 31a is the casing 20
It is fitted to the other end of the ceiling-side grooved guide rail 2 in a direction that is biased upward from the center of the vertical width of the above and matches the movement path of the braked member 17 on the outer sliding door 4 side, and is fixed by the screw 26.

According to the above construction, when the inner sliding door 3 is moved toward the closing limit position shown in FIG. 1, just before the inner sliding door 3 reaches the closing limit position, the ceiling side groove guide rail is horizontally oriented horizontally. The braked member 16 projecting in 2 enters into the braked member fitting groove 27a of the brake body 18 (movable member 27) in the casing 20. At this time, with respect to the movement level of the braked member 16, the protrusion 31a of the pressing plate 31 on the casing 20 side is moved to the braking body 18 (movable member 27).
Even if the position of the braking body 18 (movable member 27) is displaced in the vertical direction to the limit level of contacting the upper and lower side surfaces of the braked member entrance guide portion 29 of the braked member fitting groove 27a in The braked member advancing guide portion 29 ensures that the braked member 16 on the inner sliding door 3 side surely enters the braked member fitting groove 27a while pushing down or pushing up the braking body 18 (movable member 27). You can

As shown in FIG. 6, when the braked member 16 on the inner sliding door 3 side enters into the braked member fitting groove portion 27a of the braking body 18 (movable member 27), the braked member 16 concerned. The upper and lower side surfaces are pressed by a pair of upper and lower spring plate portions 28b and 28c of the U-shaped spring plate 28 to be frictionally braked. Therefore, it is possible to prevent the inner sliding door 3 from violently colliding with the side frame or the like at the closing limit position. Also, when the outer sliding door 4 reaches the closing limit position, the outer sliding door 4
By the braked member 17 and the braking body 19 in the casing 20, friction braking is performed in the same manner as described above.

The member 16 or 17 to be braked is the braking member 1.
By entering into the braked member fitting groove 27a of 8 or 19, the upper and lower levels of these brake bodies 18 or 19 with respect to the casing 20 are automatically aligned by the braked member 16 or 17, but The position after the centering is held by the frictional resistance between the sandpaper-shaped band-shaped uneven surface 32 as the frictional resistance means on the casing 20 side and the bottom surface of the movable member 27, and the braking body 18 or 19 is gravitated to the lower limit. It never falls. However, due to the wear of the band-shaped uneven surface 32 over time, the braking body 18 or 19
Even if the gravity falls, the protruding portion 31a of the pressing plate 31 on the casing 20 side is below a certain level, that is, the braked member 16
Or 17 is the braking member fitting groove portion 2 of the braking body 18 or 19.
Since the braking body 18 or 19 is prevented from falling by gravity to a level where it cannot enter the inside of the 7a, the braked member 16
Or 17 is the braking member fitting groove portion 2 of the braking body 18 or 19.
There is no possibility of being unable to enter into 7a.

Further, the braked member 16 or 17 can enter into the braked member fitting groove portion 27a of the brake body 18 or 19.
The allowable range of the level error of the braked member 16 or 17 in the vertical direction is the adjustable range of the support level of the inner sliding door 3 or the outer sliding door 4, that is, the horizontal shaft rollers 5, 6 on the lower end side of these sliding doors 3, 4. Since the upper and lower adjustable range of the attachment level to the sliding doors 3 and 4 is equal to or larger than that, even when the support level of the inner sliding door 3 and the outer sliding door 4 is adjusted, the closing position by the braking body 18 or 19 is limited. The braking action of is surely obtained.

If the support level of the inner sliding door 3 and the outer sliding door 4 cannot be adjusted,
The brake 18 or 19 can also be fixed to the casing 20 at a constant level. Further, even when the braking body 18 or 19 is mounted on the casing 20 so as to be vertically movable, a stopper (for example, the protrusion 31 a of the pressing plate 31 of the pressing plate 31 that limits the vertical translation range of the braking body 18 or 19 to a certain range). ), The frictional resistance means (for example, the sandpaper-shaped band-shaped uneven surface 32) may be omitted. Further, in the above-described embodiment, the braking is performed when the sliding door reaches the closing limit position, but it may be configured to perform the braking when the sliding door reaches the opening limit position. May be configured to be braked in both the closed limit position and the open limit position. Of course, the embodiment has been described in which two sliding doors are provided inside and outside, but the number of sliding doors is not limited.

[0022]

As described above, according to the sliding door braking device of the present invention, the member to be braked which is horizontally and horizontally projected on the upper portion of the lower supporting sliding door is provided with the ceiling side groove shape for the steady rest of the sliding door. Since the braking member is arranged at the end of the guide rail to press the sliding door in the vertical direction to brake when the sliding door is at the stroke end, the steady rest sliding member (vertical shaft roller, etc.) on the upper end side of the sliding door. The width of the ceiling side grooved guide rail needs to be increased for the interior of the braking body, as in the case where the braking body has to be installed on both left and right sides or one side of the ceiling side grooved guide rail in which It is economical because it is possible to use the groove guide rail on the ceiling side of the conventional lower-side supporting sliding door which is not equipped with this type of braking device as it is, and the ceiling side to which the guide rail is attached. There is no need to special structure, is highly practical.

Further, according to the structure of the present invention , even if the support level of the lower supporting sliding door is adjusted, if the range is within the vertical translation range of the braking body, at the stroke end of the sliding door, The braked member is caused to enter the braked member fitting groove of the brake body with the vertical translation of the braked body, and the pressing spring is surely pressed in the vertical direction to brake. You can

According to the second aspect of the invention,
When the member to be braked escapes from the braking body,
Prevents gravity from falling to the lower limit of the lower parallel movement range,
Always keep the braked member from entering the braked member fitting groove of the moving body.
Can be done smoothly. Further , according to the configuration of claim 3 , both of the sliding doors arranged in the inner and outer rows,
By the brake bodies installed at both ends of one groove-shaped guide rail, it is possible to automatically brake at each closed limit position. In this case, according to the structure of claim 4 , the two brake casing internal casings having exactly the same structure are turned so that the positions of the brake bodies are turned upside down. It is possible to perform braking at the closed limit positions of the sliding doors in the two rows of inside and outside, simply by fitting and fixing to the inside, which is economical compared to the case where two types of casings for the braking body are required to be prepared. .

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional plan view in a state where both inner and outer sliding doors are closed.

FIG. 2 is a vertical sectional side view showing a supported state of both the inner and outer sliding doors by the floor side guide rail and the ceiling side grooved guide rail.

FIG. 3 is a perspective view showing a braking body and a casing.

FIG. 4 is a vertical cross-sectional front view showing braking means for an inner sliding door.

FIG. 5 is a vertical sectional front view showing braking means for an outer sliding door.

FIG. 6 is a vertical sectional front view showing a braking state of an inside sliding door.

FIG. 7 is a cross-sectional plan view showing an inside sliding door and its braking means.

FIG. 8 is a cross-sectional plan view showing an outer sliding door and its braking means.

FIG. 9 is a partially cutaway rear view of the upper end portion of the inside sliding door.

FIG. 10 is a partially cutaway rear view of the upper end portion of the outer sliding door.

[Explanation of symbols]

1 Floor-side guide rail 2 Ceiling-side grooved guide rail 3 Inner sliding door 4 Outer sliding door 9 Upper grooved lower grooved rail section 10 Lower grooved upper grooved rail section 11 Back plate section 12a, 12b Vertical axis roller of inner sliding door ( Anti-sway sliding member) 14a, 14b Vertical axis roller of outside sliding door (sway preventing sliding member) 16 Inside sliding door braked member 17 Outside sliding door braked member 18, 19 Braking body 20 Casing 25 Guide slit 27 Moving member 27a Braked member fitting groove portion 28 U-shaped spring plates 28b, 28c A pair of upper and lower spring plate portions 29 Braked member advancing guide portion 32 Sandpaper-shaped strip-shaped uneven surface (friction resistance means)

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields investigated (Int.Cl. ⁷ , DB name) E05F 5/00-5/02 E05F 3/16 E06B 3/46 E05C 17/60 E05C 21/00 E05D 15 / 06 125

Claims (4)

(57) [Claims] 1. A lower support of a sliding door movably supported by a floor-side guide rail, wherein a slide-preventing sliding member that fits into a groove-shaped guide rail, one of which is open in the vertical direction, is provided above the sliding door. In the sliding door, a member to be braked is provided in a horizontal direction on an upper portion of the sliding door, and the groove-shaped guide rail presses the member to be braked in the vertical direction to brake when the sliding door is at the stroke end. A braking body is installed and this braking
At least one of the upper and lower sides of the body is for pressing the braked member
It is formed by a spring and the entry side end of the braked member moves up and down.
The braking member has a groove that is open to the
Braking device for sliding doors that is supported so that it can move in parallel within a certain range . 2. A frictional resistance for preventing the brake body from falling by gravity.
The braking device for a sliding door according to claim 1 , wherein a means is provided side by side . 3. Sliding doors are arranged in two rows, an inner sliding door.
In the upper part of the
Attached, above the outer sliding door, below the inner sliding door
Above the anti-sway slide member and the braked member
If the anti-sway slide member and the braked member are attached,
The grooved guide rails are
Lower grooved rail section with open upper side to which the sliding member for stopping fits
And the sliding member for the upward rest of the outer sliding door fits
The lower open upper grooved rail part is integrated by the back plate part
The guide rails of the groove type guide rail
The braked member of the inside sliding door is braked on the inside lower side.
Inside the other end of the groove-shaped guide rail with the braking element
On the upper side of the part, a braking body for braking the braked member of the outer sliding door
The braking device for a sliding door according to claim 1 or 2, wherein: 4. The braking bodies at both ends of the groove-shaped guide rail.
Is a cable that is internally fitted and fixed to the end of the groove-shaped guide rail.
It is internally installed in the single, and both brake internal housings have the same structure.
The orientation of the brake body is upside down.
The guide rails are fitted in and fixed to both ends of the grooved guide rail.
The sliding door braking device according to claim 3 .