JP3693660B2 - Slide rail type upper suspension door device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention uses a slide rail body assembled by slidably engaging an inner rail mounted on a door body such as a sliding door with respect to an outer rail fixed on the ceiling side via a plurality of balls held by a retainer. The present invention relates to a slide rail type upper suspension door device that suspends a door so that the door can be opened and closed.
[0002]
[Prior art]
Among these types of door devices, for example, in sliding door devices, in general, when sliding doors are slid to open and close, there is a tendency for the sliding doors to collide against the doors with that momentum, and accidents such as operator clogging fingers are likely to occur. In addition, there is a problem in that the sliding door rebounds due to the reaction of the collision or returns naturally due to gravity due to the inclination of the floor after opening and closing.
[0003]
Therefore, in order to prevent the occurrence of these adverse effects, the conventional sliding door device is equipped with a dedicated brake device composed of a rack and pinion mechanism, and a rotary oil damper that is connected to the gear shaft of the pinion and decelerates. The brake device is operated to decelerate the opening / closing movement of the sliding door (see, for example, Patent Document 1). Some sliding door devices are equipped with an air pump type air brake that operates when the sliding door is closed as a dedicated brake device (see, for example, Patent Document 2).
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 5-42564 (page 1-2, FIG. 1)
[Patent Document 2]
JP-A-8-333948 (page 3, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, since the conventional sliding door device is equipped with a dedicated brake device, it requires extra installation space and the size of the device increases, but it must be blinded with a curtain from the front side. There was a problem that the more aesthetic appearance was, the worse the appearance around the sliding door was. Furthermore, there is a problem that the cost is increased as much as a dedicated brake device is required.
[0006]
An object of the present invention is to solve the above-described conventional problems, to provide an inexpensive slide rail type upper suspension door device that reduces unnecessary installation space and enhances aesthetics around the door body.
[0007]
[Means for Solving the Problems]
Accordingly, in order to achieve the above object, the invention described in claim 1 is fixed horizontally on the ceiling side having the ball guide portions 1b curved inward from both side edges, for example, as shown in the following embodiments. Outer rail 1, inner rail 2 having a ball guide portion 2b curved outward from both side edges and mounted on a door body such as sliding door D, and a large number of clamps between both ball guides 1b and 2b. The door 8 is suspended in a freely openable and closable manner using a slide rail body R comprising a retainer 3 that holds the balls 8 in the holding holes 7 so as to roll freely and engages between both rails 1 and 2. When the inner rail 2 slides integrally with the opening / closing movement of the door body, the balls 8... Roll, and the inner rail 2 is slid while moving the retainer 3 through the balls 8. door In the slide rail type upper suspension door device that opens and closes, when the door body opens and closes, the passage of the inner rail 2 is allowed, while the end of the retainer 3 is applied to restrict the movement of the retainer 3. The stopper means such as the screw shaft 15 and the stopper plate piece 20 is provided, and the stopper means can adjust the contact position where the end of the retainer 3 hits according to the type of the door including the door weight. The outer rail 1 is assembled to the door end side end and the door bottom side end.
[0008]
According to a second aspect of the present invention, in the slide rail type upper suspension door device according to the first aspect, for example, as in the illustrated embodiment shown below, the stopper means has the shaft tip 15 a at the end of the retainer 3. It is formed with a screw shaft 15 that is rotatably attached to the outer rail 1 so that the abutting position where the end of the retainer 3 abuts can be finely adjusted according to the screwing amount of the screw shaft 15. It is characterized by becoming.
[0009]
According to a third aspect of the present invention, in the slide rail type upper suspension door device according to the first aspect, for example, as shown in the following embodiment, a plurality of the outer rails 1 are provided at predetermined intervals in the length direction. The mounting position adjusting hole 19 is provided, and the stopper means such as the stopper plate piece 20 is assembled through the mounting position adjusting hole 19 so that the contact position where the end of the retainer 3 hits can be adjusted in multiple stages. It is characterized by comprising.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is an assembled perspective view showing a slide rail type upper sliding door device as an example of the present invention, FIG. 2 is an exploded perspective view, and FIG. 3 is an enlarged end view seen from one end side. The illustrated sliding door device includes, for example, a wooden sliding door D and a slide rail body R. The slide rail body R includes an outer rail 1, an inner rail 2, and a retainer 3.
[0012]
The outer rail 1 is formed by forming a belt-shaped metal plate with a press, curving both side edges of the flat mounting plate portion 1a inwardly facing each other, and forming a ball guide portion 1b there. A plurality of through holes 4 for fixing screws to the support W are provided in the mounting plate 1a. The inner rail 2 is formed by a press using a band-shaped metal plate having a length size obtained by subtracting a predetermined opening / closing stroke distance from the length of the outer rail 1, and the inner rail 2 is bent at a center in a substantially U-shaped cross section. Both side edges are curved outwardly away from each other, and a ball guide portion 2b is formed there.
[0013]
The retainer 3 includes two retainer main bodies 5 and 5, and the retainer main bodies 5 and 5 are connected by a plurality of retainer guides 6 and assembled in parallel. The retainer main bodies 5 and 5 are bent using a long metal plate, and a large number of support pieces 5a bent in a U-shape are connected to each other, and a holding hole 7 is formed in each support piece 5a. ing. Then, the small metal balls 8 are fitted into the holding holes 7 and are held so as to roll freely. The retainer guide 6 is made of resin, and is molded substantially corresponding to the bent shape of the inner rail 2, and is connected to the retainer main bodies 5 and 5 at both ends, and is bent concavely between the connection plates. And the abutting plate portion 6b.
[0014]
Such a retainer 3 is fitted into the outer rail 1 while engaging and rolling the held ball 8 with the left and right ball guide portions 1b. Next, the inner rail 2 is fitted into the retainer 3 while the ball 8 is rolled by engaging the left and right ball guide portions 2 b with the ball 8, and is slid relative to the outer rail 1 through the retainer 3. The slide rail body R is assembled by fitting together. When the inner rail 2 is slid, the slide rail body R rolls between the rails 1 and 2, and the retainer 3 is opened and closed with respect to the outer rail 1 by being pushed by the balls 8. At the same time, the inner rail 2 is set to move relative to the outer rail 1 by a predetermined opening / closing stroke.
[0015]
By the way, in the illustrated sliding door device, the slide rail body R having such a configuration incorporates the braking mechanisms B1 and B2 of the sliding door D at the door end side end and the door bottom side end, respectively.
[0016]
The brake mechanisms B1 and B2 are attached to the door end side start edge of the retainer body 5 and 5 and the other one to the door edge side end edge of the plurality of retainer guides 6 and the retainer 3 is attached. Constitute. On the other hand, the outer rail 1 has a structure in which screw insertion holes 10 are provided at the door end side and door bottom side end portions of the mounting plate portion 1a, and the support block 12 is screwed through the set screw 11 through the screw insertion holes 10. To do. The support block 12 is made of, for example, metal and is formed into a thick, substantially T shape in accordance with the shape of the end surface of the inner rail 2. The support block 12 is penetrated in a direction perpendicular to the mounting screw hole 13 of the set screw 11 and is adjusted to a screw hole. 14 is drilled. The screw shaft 15 of the stopper means is screwed into the adjustment screw hole 14 so that the screwing amount can be adjusted. As shown in FIG. 4, the screw shaft 15 protrudes from the shaft tip 15 a toward the abutting plate portion 6 b of the retainer 3, and is held horizontally so that the inner rail 2 can be slipped through during opening and closing movement. And the braking range L1 * L2 which brakes the sliding of the inner rail 2 is each arrange | positioned at the door end side edge part and the door bottom side edge part of the slide rail body R.
[0017]
Here, when the sliding door D is mounted on the ceiling side using the slide rail body R having the above-described structure, the slide rail body R is laid sideways and the catch plate portion 2a of the inner rail 2 is placed on the sliding door D. While fixing to the flange surface 17, the mounting plate part 1a of the outer rail 1 is fixed to the support body W on the ceiling side, and the slide rail body R is placed horizontally. Thus, in the illustrated sliding door device, the sliding door D is suspended by the support W so as to be slidable in the opening / closing direction of the opening S via the slide rail body R.
[0018]
In the illustrated sliding door device configured as described above, when the sliding door D is moved in the closing direction by holding the handle and the opening S is closed, the inner rail 2 slides relative to the outer rail 1 integrally with the movement of the sliding door D. Then, the balls 8 roll and are pushed by the balls 8 so that the retainer 3 moves while being delayed with respect to the inner rail 2 at a speed of about ½.
[0019]
After that, when the door end side end of the retainer 3 reaches the braking range L in the braking mechanism B1, the abutting plate portion 6b of the retainer 3 hits the shaft tip 15a of the screw shaft 15, as shown in FIG. Further movement of the retainer 3 is restricted. Then, as shown in FIG. 6, while the ball 8 is pressed against the hole edge of each holding hole 7 and the rotation is restricted, the inner rail 2 passes through the ball 8. Moves against the frictional force generated between the balls 8 and the ball guide 2b. That is, the inner rail 2 starts to be decelerated due to the frictional force from the contact position where the abutting plate portion 6b of the retainer 3 hits the shaft tip 15a of the screw shaft 15, and the braking range L1 in a state where the brake is applied. As shown in FIG. 7, the sliding door D is closed by hitting the support block 12 softly in a buffered state.
[0020]
Therefore, when the sliding door D is closed, the occurrence of an accident in which the operator closes the finger is prevented, and the sliding door D rebounds and returns due to the reaction, or the sliding door after the closing causes gravity due to the inclination of the floor surface. It is also possible to prevent the occurrence of harmful effects such as
[0021]
Conversely, when the sliding door D is moved in the opening direction to open the opening S, when the retainer 3 reaches the braking range L2 in the braking mechanism B2 on the door bottom side, similarly, the sliding door D projects into the shaft tip 15a of the screw shaft 15. Since the contact plate portion 6b hits to restrict the movement of the retainer 3 and the balls 8 are restricted from rotating, the inner rail 2 is brought into contact with the shaft tip 15a of the screw shaft 15 and the abutting plate portion 6b of the retainer 3. From the abutting position, the vehicle starts to decelerate due to the frictional force, slowly slides in the braking range L2 in the braked state, stops softly against the support block 12 in the buffered state, and the opening S is opened. The
[0022]
In addition, in the illustrated sliding door device, when the sliding door D is assembled, the weight of the sliding door D, the screw rod provided in the brake mechanism B1 or B2 depending on the type of the sliding door, such as whether the handle attached to the sliding door is a handle structure or a pulling handle structure. The length distance of the braking ranges L1 and L2 is adjusted by adjusting the contact position where the retainer 3 hits the shaft tip 15a. In that case, the screwing amount of the screw rod 15 into the support block 12 is adjusted, and for example, the braking range L1 is shortened as shown in FIG. In the illustrated example, since the stopper means is a screw-type screw shaft 15, the braking range L can be strictly adjusted by finely adjusting the screwing amount.
[0023]
By the way, in the sliding door apparatus by this invention, brake mechanism B1 * B2 incorporated in the slide rail body R can also be set as the example of illustration shown below.
[0024]
As shown in FIGS. 9 and 10, in the braking mechanisms B1 and B2 of the other examples shown in the drawings, the mounting position adjusting hole 19 that also serves as a through hole of a fixing screw for the support W is formed on the mounting plate portion 1a of the outer rail 1. Are provided at predetermined equal intervals. As the stopper means, a metal stopper plate piece 20 is used instead of the screw shaft. The stopper plate piece 20 is provided with a receiving plate piece portion 20b that bends in an L shape only at the center of one side of the mounting plate portion 20a that is centered on the screw insertion hole 21, so that the inner rail 2 can be slipped through during opening and closing movement. It has become. Then, the stopper plate piece 20 is screwed to the outer rail 1 through the mounting position adjusting hole 19 and the screw insertion hole 21 through the set screw 22, and the receiving plate piece portion 20b is opposed to the abutting plate portion 6b of the retainer 3. The braking range L is arranged at the door end side end and the door bottom side end of the slide rail body R, respectively.
[0025]
Now, in the sliding door device provided with the slide rail body R of the other example shown in the drawing, when the sliding door D is moved and the opening S is closed, when the end of the retainer 3 reaches the braking range L in the braking mechanism B1 on the door bottom side, As shown in FIG. 11, the abutting plate portion 6 b hits the receiving plate piece portion 20 b of the stopper plate piece 20 to restrict the movement of the retainer 3. Then, the inner rail 2 moves on the rotation restricted balls 8 against the frictional force generated between the balls 8 and the ball guide 2b, and the stopper plate piece 20 is brought into contact with the abutting plate portion of the retainer 3. 6b starts to decelerate from the contact position where it hits, slowly slides in the braking range L with the brake applied, and closes the sliding door D by hitting a stopper (not shown) softly in the buffered state.
[0026]
Further, in the other example shown in the drawing, when the sliding door D is assembled, the braking position is adjusted by adjusting the contact position where the stopper plate 20 abuts against the end of the retainer 3 according to the type of the sliding door, such as its weight and the structure of the handle. Adjust the distance of L. In that case, an appropriate mounting position adjusting hole 19 is selected from the plurality of mounting position adjusting holes 19 according to the type of the sliding door, and the mounting position of the stopper plate piece 20 is adjusted, for example, as shown in FIG. Thus, the distance of the braking range L is lengthened. In the illustrated example, by selecting the positions of the mounting position adjusting holes 19 provided at intervals, even when sliding doors with significantly different weights are assembled, the braking range L is adjusted to a large and multi-stage appropriately. Can be dealt with.
[0027]
【The invention's effect】
According to the present invention configured as described above, the following effects can be obtained.
[0028]
According to the first aspect of the present invention, instead of separately mounting a brake device as in the prior art, the movement of the retainer is regulated in the braking area on the door end side and the door bottom side to reduce the sliding of the inner rail. Because the brake mechanism to be built is a thin slide rail body, which is formed in itself, it is possible to eliminate extra installation space for the brake device around the door body such as a sliding door, and around the door body While refreshing and improving aesthetics and improving the appearance, it is possible to realize dramatic cost reductions as much as a dedicated brake device is unnecessary.
[0029]
According to the invention described in claim 2, in addition, by adjusting the screwing amount using a screw shaft as a stopper means, the braking range of the sliding door is strictly finely adjusted between the door end side and the door bottom side. As a result, it is possible to prevent finger padding and rebound of the door appropriately in response to subtle types of doors such as weight.
[0030]
According to the third aspect of the invention, in addition, by selecting the positions of the mounting position adjusting holes provided at intervals, the braking range of the sliding door is adjusted in a large and multistage manner on the door tip side and the door bottom side. As a result, even when doors of significantly different types, such as weight, are assembled, it is possible to prevent finger jamming and the doors from being rebounded appropriately.
[Brief description of the drawings]
FIG. 1 is an assembled perspective view showing an example of a sliding rail type upper suspension door device as an example of the present invention. FIG. 2 is an exploded perspective view of the sliding door device.
FIG. 3 is an end view showing the sliding door device as viewed from one end side.
FIG. 4 is a partial longitudinal sectional view showing a braking mechanism provided on the door end side of the sliding door device.
FIG. 5 is a partial longitudinal sectional view showing a door end side braking mechanism in a state in which an end portion of a retainer is in contact with a screw shaft.
FIG. 6 is an operation explanatory diagram for explaining a state in which the sliding of the inner rail is braked by applying the screw shaft to the retainer.
FIG. 7 is a partial longitudinal sectional view showing a door-side braking mechanism in a state after the sliding door is closed.
FIG. 8 is a partial vertical cross-sectional view showing a door-side braking mechanism in a state where the screwing amount of the screw shaft is adjusted to change the contact position with the retainer.
FIG. 9 is a partial longitudinal sectional view showing another example braking mechanism provided on the door end side of the sliding door device.
FIG. 10 is an exploded perspective view of a sliding door device including another example of a braking mechanism.
FIG. 11 is a partial longitudinal sectional view showing a braking mechanism of another example in a state where the end of the retainer is in contact with the screw shaft on the door end side.
FIG. 12 is a partial longitudinal sectional view showing another example of a braking mechanism on the door end side in a state after the sliding door is closed.
FIG. 13 is a partial longitudinal sectional view showing another example of a brake mechanism on the door-end side in a state where the attachment position of the stopper plate piece is adjusted to change the contact position with the retainer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer rail 1b Ball guide part 2 Inner rail 2b Ball guide part 3 Retainer 6 Retainer guide 6b Abutting plate part 7 Holding hole 8 Ball 15 Screw shaft (stopper means)
19 Mounting position adjustment hole 20 Stopper plate piece (stopper means)
20b Receiving plate pieces B1 and B2 Braking mechanism D Sliding door (door body)
L ・ L1 ・ L2 Brake range R Slide rail body

Claims (3)

An outer rail fixed horizontally on the ceiling side having ball guide portions curved inward from both side edges, an inner rail having ball guide portions curved outward from both side edges and mounted on a door body, A slide rail body comprising a retainer in which a large number of balls sandwiched between the ball guide portions are respectively held in a holding hole so as to be freely rotatable and engaged between both rails, and the door body is movably suspended. When the inner rail slides integrally with the opening / closing movement of the door, the ball rolls, and the retainer is moved through the balls, and the inner rail is slid to open / close the door. In rail type upper suspension door device,
When the door body opens and closes, it comprises stopper means having a shape that allows passage of the inner rail while restricting movement of the retainer by applying an end of the retainer,
The stopper means is assembled to the door end side end portion and door end side end portion of the outer rail so that the contact position where the end portion of the retainer abuts can be adjusted according to the type of door body including the door body weight. A slide rail type upper suspension door device characterized by comprising: The stopper means is formed of a screw shaft that is pivotably assembled to the outer rail with the shaft tip directed toward the end of the retainer, and the end of the retainer hits according to the screwing amount of the screw shaft. The slide rail type upper suspension door device according to claim 1, wherein the contact position is configured to be finely adjustable. A plurality of mounting position adjusting holes are provided at predetermined intervals in the length direction of the outer rail, and the stopper means is assembled through the mounting position adjusting holes so that the abutting position where the end of the retainer contacts is multi-staged. The slide rail type upper suspension door device according to claim 1, wherein the slide rail type upper suspension door device is configured to be adjustable.

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