JPH06330670A - Stopping mechanism for sliding door - Google Patents

Abstract

PURPOSE:To prevent a sliding door from naturally opening even in the case of inclination of a doorstill due to ill-fitting. CONSTITUTION:When a sliding door P is closed, one end part S21 of an operation member S2 makes contact with a door stop Q. Under this condition, the other end part 22 of the operation member S2, namely, the friction plate S1 is pressed against the wheel 1 of a sash roller A so as to brake the wheel 1. When the sliding doop P is a little opened, the operation member S2 is separated from the friction plate S1 side by a compression coil spring S3. Hereby, the friction plate S1 is released from being pressed against the wheel 1, and hence the sliding door P can be smoothly opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door stopping mechanism for stopping a closed sliding door with a predetermined holding force.

[0002]

2. Description of the Related Art In recent years,
In houses and the like, wheels of door rollers mounted on sliding doors are also becoming able to rotate very smoothly with low friction. Therefore, the operating force required to open and close the sliding door is 300 to 5
It became very light, about 00g. By the way, the sill for guiding the sliding door may be inclined in the direction in which the sliding door is opened due to poor building. For example, when the sill is inclined by 1 °, there is a problem that even a sliding door having a weight of 40 kg cannot be stopped in the closed state and is naturally opened.

The present invention has been made in view of the above, and it is an object of the present invention to provide a sliding door stop mechanism that does not naturally open even if the sliding door is poorly built.

[0004]

In order to achieve the above object, a sliding door stopping mechanism according to the present invention is a sliding door stopping mechanism for stopping a closed sliding door with a predetermined force. A friction member displaceable between a position for pressing a wheel of a door roller attached to the sliding door and a position for releasing the pressing, an advance position where one end projects a predetermined amount from the end face of the sliding door, and the one end is an end face of the sliding door. An operation member that can be moved forward and backward to and from a retracted position that is flush with the operation member, and that presses the friction member toward the wheel side by the other end, and a biasing member that pushes the operation member to the advanced position. It is characterized by having a means for energizing.

[0005]

According to the above construction, when the sliding door is closed, immediately before the sliding door comes into contact with the door stop, one end of the operating member in the advanced position comes into contact with the door stop and is pushed by the door stop to retract. The sliding door comes into contact with the door stop in the state of being moved to the position. In this state, the operation member pushes the friction member against the wheel of the door roller against the biasing means, and applies a predetermined frictional force to the wheel. By this frictional force, the sliding door can be stopped in the closed state.

When the sliding door is opened, if the sliding door is slightly opened by hand, the operating member urged by the urging means moves to the advanced position, and the pressing of the friction member against the wheel is released. Therefore, the sliding door can be smoothly opened.

[0007]

Embodiments will be described in detail below with reference to the accompanying drawings showing embodiments. FIG. 1 is a vertical cross-sectional view of a sliding door including a sliding door stop mechanism according to an embodiment of the present invention, and FIG. 2 shows an exploded state of a door roller. With reference to FIG. 1, the door roller A is attached to a door roller storage space P1 formed in a lower surface of a sliding door P. Referring to FIGS. 1 and 2, the door roller A has an axle 10
1, a holding frame 2 rotatably holding both ends of an axle 10, and a door roller case 3 accommodating the holding frame 2.
And the vertical adjustment mechanism H of the door roller including the adjustment screw 4 including the adjustment screw main body portion 41 and the head portion 42, which penetrate the side end of the door roller case 3 and are screw-connected to the holding frame 2, and the wheel 1. The sliding door stop mechanism S is provided for stopping the sliding door P in a closed state by applying a predetermined frictional force.

Referring to FIGS. 1 and 2, the above-described sliding door stop mechanism S presses the peripheral surface of the wheel 1 (see FIG. 4).
And a friction plate S1 as a friction member that is displaceable to a position where the pressure is released (see FIG. 1), and a sliding plate P that is attached to the sliding door P so as to be able to move back and forth, and the sliding plate P is closed. Operation member S2 to be pressed against, and this operation member S2
Is provided in the direction away from the friction plate S1 and a compression coil spring S3 as a biasing means.

An upper end S11 of the friction plate S1 is rotatably supported by a pair of brackets 30a protruding downward from the inner upper surface 30 of the door roller case 3 via a pin S4. The friction plate S1 rotates clockwise in FIG. 1 to bring the lower end S12 thereof into contact with the peripheral surface of the wheel 1. A spring locking hole S provided near the upper end of the friction plate S1
13 and a spring engaging portion 30b cut and raised downward from the inner upper surface 30 of the door roller case 30, a pulling member for urging the friction plate S1 toward the position where the pressure is released (counterclockwise in FIG. 1). The coil spring S5 is interposed. A plate spring S14 that elastically receives the pressing force of the operating member S2 is attached to the surface of the friction plate S1 on the operating member S2 side. The material of the friction plate S1 may be resin or metal as long as it can exert a required frictional force on the wheel 1.

Referring to FIGS. 1 and 3, the operating member S2
Is attached slidably to the left and right in the figure by a holding cylinder S6 that is non-removably fitted into a through hole P2 that penetrates the door roller housing space P1 of the sliding door P toward the end surface Pa side of the sliding door P. The operation member S2 is made of a long bar, and one end S21 of the operation member S2 is movable back and forth from the end surface Pa of the sliding door P. Further, the other end S22 of the operating member S2
Extends through a turn restricting member 5, a door roller case 3 and a holding frame 2 which will be described later, to a position where the plate spring S14 of the friction plate S1 can come into contact therewith. A disk portion S22 slidably accommodated in the holding cylinder S6 is integrally formed near the one end S21 of the operation member S2. The operating member S2 has an advance position (FIG. 1) in which one end S21 thereof projects from the end surface Pa of the sliding door P by a predetermined amount (for example, about 1 to 3 mm).
) And the retracted position (see FIG. 4) where the one end S21 is flush with the end face Pa of the sliding door P, and in the retracted position, the other end S22 causes the leaf spring S14 to move. The friction plate S1 is pressed to the wheel 1 side in a state where the wheel is bent.

Referring to FIG. 3, the holding cylinder S6 has insertion holes at both end surfaces S6a and S6b through which the operation member S2 is inserted. An end surface portion S6a of the holding cylinder S6 on the right side in the drawing is an annular projecting edge portion S6 extending radially outward.
The projecting edge S6a1 has an annular recess P formed around the through hole P2 on the end surface Pa of the sliding door P.
The end surface S6a is flush with the end surface Pa of the sliding door P. A plurality of annular projections S61 each having a wedge-shaped cross section are formed on the outer peripheral surface of the holding cylinder S6.
Of the through hole P2 of the through hole P2
Is attached to. The holding cylinder S6 has the end surface portion S6.
The part including b has a two-piece structure integrally combined with other parts.

The compression coil spring S3 is housed in the holding cylinder S6 while being loosely fitted to the operating member S2, and is interposed between the end surface portion S6b of the holding cylinder S6 and the disc portion S22 of the operating member S6. Has been done. The compression coil spring S3 biases the operating member S2 to the advanced position (state of FIG. 3).
Next, the vertical adjustment mechanism H will be described with reference to FIGS. 1 and 2. First, the holding frame 2 is formed by bending a plate body into a substantially U shape, and has a pair of oblique grooves 20 through which the axle 10 is inserted, on both opposing surfaces. The lower end of the slanted groove 20 is bent so as to be horizontal, and an opening is formed at one end of the holding frame 2 so that the axle 10 can be inserted through this opening. Further, a screw hole 21 for screwing the adjusting screw 4 is formed through the side end surface of the holding frame 2, and an insertion hole 22 is formed through which the operation member S2 is inserted.

The door roller case 3 is in the form of an elongated rectangular cylinder box, and accommodates the wheel 1 and the holding frame 2 therein.
The inner upper surface 30 of the door roller case 3 abuts the upper end of the holding frame 2 to regulate the upward movement of the holding frame 2. A guide piece 31 that restricts the downward movement of the holding frame 2 by contacting the upper ends of the horizontal portions of the slanted grooves 20 of the holding frame 2 with the inner surfaces of the front and back portions of the door roller case 3 is provided. It is provided. The holding frame 2 is guided by the inner upper surface 30 and the guide piece 31 so as to be movable only in the horizontal direction. Vertical grooves 32 through which both ends of the axle 10 are inserted are cut out at lower portions of the front and back sides of the door roller case 3 substantially in the center thereof.

On the side end surface of the door roller case 3, an insertion hole 33 for inserting the adjusting screw main body 41 is formed so as to penetrate, and an insertion hole 34 for inserting the operation member S2 is formed so as to penetrate therethrough. The adjusting screw 4 includes the adjusting screw main body portion 41 described above.
And the head 42. The adjusting screw main body portion 41 has a screw portion 41a that is screwed into the screw hole 21 of the holding frame 2, and an annular flange portion 41b that is continuous with the screw portion 41a and that is located outside the side end surface of the door roller case 3. This flange part 41
It has a prismatic protrusion 41c that is provided so as to project from b in the axial direction. An annular groove 41d is formed at a position near the flange portion 41b of the screw portion 41a of the adjusting screw main body portion 41. The U-shaped fixing member 6 fixed to the door roller case 3 is inserted into the annular groove 41d, so that the axial movement of the adjusting screw main body 41 is restricted. The U-shaped fixing member 6 is fixed to the door roller case 3 by being inserted through the vertical slit 35 on the front surface of the door roller case 3 and engaged with a pair of engagement holes (not shown) on the back surface.

The head 42 is composed of a hemispherical head body 42a and a columnar lower neck 42b. A large number of tooth spaces 42c are formed side by side in an annular shape on the outer peripheral surface of the head body 42a. Further, the neck lower portion 42b has a connecting recess 42d into which the prismatic protrusion 41c of the adjusting screw main body 41 is inserted and connected. By inserting the prismatic protrusion 41a into the connecting recess 42d, the adjusting screw main body 41 and the head 42 can be integrally rotated and relatively movable in the axial direction. Further, a compression coil spring 43 as an urging means is interposed between the head body portion 42a of the head portion 42 and the flange portion 41b of the adjusting screw body portion 41. The head 42 is biased in a direction away from the adjusting screw body 41.

The head 42 urged by the compression coil spring 43 comes into contact with the rotation restricting member 5 attached to the side end surface of the door roller case 3 to stop its movement, whereby the adjusting screw main body portion 41. It is prevented from pulling out.
The rotation restricting member 5 is made of a plate material having a substantially U-shaped cross section, and hooks a pair of claws 51 provided at the tips of the upper and lower surface parts on the upper and lower edges of the side end face of the door roller case 3 and the claws. The door roller case 3 is formed by the recessed strip 52 formed continuously on the 51.
It is fixed to the door roller case 3 by sandwiching the side end surface thereof in the thickness direction. Further, a head exposing hole 53 for exposing a part of the head 42 of the adjusting screw 4 is formed in the end surface of the rotation restricting member 5, and an inner peripheral surface of the head exposing hole 51 is formed. Is formed with a large number of tooth grooves 51a that mesh with the tooth grooves 42c of the head 42 of the adjusting screw 4 over the entire circumference. Further, the operation member S2 is provided on the end surface of the rotation restricting member 5.
An insertion hole 54 is formed so as to pass through.

Next, the adjustment by the vertical adjustment mechanism H will be described. In FIG. 1, the driver, which is inserted through the through hole P3 of the sliding door P, is engaged with the head 42 of the adjusting screw 4 and the compression coil spring 43 is contracted. Head exposure hole 5 of the regulating member 5
Push it to the inner side of 3). Thereby, the tooth groove 42c of the head 42 of the adjusting screw 4 and the tooth groove 53a of the head exposing hole 53 are formed.
Is disengaged and the head 42 is in a rotatable state. By rotating the driver in this state, the entire adjusting screw 4 including the head portion 42 and the screw body portion 41 is integrally rotated, whereby the holding frame 2 is horizontally moved,
The vertical position of the door roller can be easily adjusted.

After the adjustment, when the driver is removed, the head portion 42 is pushed by the compression coil spring 43 and the head exposing hole 53.
Then, the head 42 and the tooth spaces 42c, 53a of the head exposing hole 53 mesh with each other. Thereby, unnecessary rotation of the adjusting screw 4 can be reliably prevented. Therefore, even if vibration or chattering occurs due to opening and closing of the sliding door, the adjusting screw 4 does not loosen, and the vertical position of the adjusted door roller does not shift. As described above, in a state where adjustment is not required, loosening can be surely prevented by the engagement of the tooth spaces 42c and 53a, and the engagement is disengaged during the adjustment, so that the adjusting screw 4 can be easily rotated. Can be adjusted and is easy to adjust. A leaf spring can be used instead of the compression coil spring 43. Furthermore, it is possible to integrally form a plurality of radially arranged spring pieces on the head of the adjusting screw.

According to this embodiment, when closing the sliding door P,
Immediately before the sliding door P comes into contact with the door stop Q, one end S21 of the operating member S2 in the advanced position comes into contact with the door stop Q,
With the operation member S2 pushed by the door stop Q and moved to the retracted position, the sliding door P contacts the door stop Q as shown in FIG. In this state, the operating member S2 presses the friction plate S1 against the wheel 1 against the compression coil spring S3,
A predetermined frictional force is applied to the wheel 1. By this frictional force,
The sliding door P can be stopped in the closed state.

The operating member S22 presses the friction plate S1 while bending the plate spring S14 via the plate spring S14. Therefore, even if the mounting accuracy of each member is somewhat poor, this can be absorbed by the bending stroke of the leaf spring S14. Moreover, since the frictional plate S1 is pressed against the wheel 1 by the elastic repulsive force of the plate spring S14, the frictional plate S1 should be pressed against the wheel 1 with a constant pressing force even when the mounting accuracy is poor as described above. You can

When the sliding door P is opened, if the sliding door P is slightly opened by hand, the operating member S2 biased by the compression coil spring S3 moves to the advanced position shown in FIG. The other end S22 of 1 is a leaf spring S14
Since the pressing on the wheel 1 is released, the pressing of the friction plate S1 on the wheel 1 is released. Therefore, the sliding door P can be smoothly opened. In particular, since the friction plate S1 is pulled by the tension coil spring S5 and is reliably separated from the wheel 1, the friction plate S1 contacts the wheel 1 unnecessarily and the wheel 1
It does not interfere with the smooth rotation of the.

The present invention is not limited to the above-described embodiment, but the present invention can be applied to a structure having no adjusting screw 4 locking mechanism as shown in FIG. Further, as shown in FIG. 6, a tubular portion S23 that can be moved back and forth is externally fitted to the other end portion S22 of the operating member S2, and is urged toward the friction plate S1 by a compression coil spring S24 having the tubular portion S23 installed therein. It may be done. in this case,
Although the leaf spring S14 is abolished, the compression coil spring S
24 functions similarly to the leaf spring S14.

Further, in the embodiment shown in FIG. 1, the compression coil spring S3 may be omitted and the tension coil spring S5 may urge the operating member S2 to the advanced position via the friction plate S1. Further, in the embodiment of FIG. 1, the leaf spring S14 and the tension coil spring S5 can be omitted.

In addition, the friction plate S1 is made of elastic rubber or resin, and the other end S22 of the operating member S2 is used.
It is also possible to fix it by gluing or other means. In addition, various design changes may be made within a range not changing the gist of the present invention, such as the friction plate S1 having a substantially V-shaped cross section (or U-shaped shape) that surrounds the peripheral portion of the wheel 1. Can be given.

[0025]

As described above, according to the sliding door stop mechanism of the present invention, the operation member that abuts against the door stop in the closed state of the sliding door presses the friction portion against the wheel of the door roller, so that the wheel is rubbed. You can apply force to keep the sliding door closed. Therefore, even if the construction is bad and the sill is inclined, the sliding door will not be naturally opened. Further, if the sliding door is slightly opened by hand, the pressing of the friction portion against the wheel is released, so that the sliding door can be smoothly opened.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a sliding door including a sliding door stop mechanism according to an embodiment of the present invention, showing a state in which the sliding door is opened.

FIG. 2 is an exploded perspective view of a door roller.

FIG. 3 is a vertical cross-sectional view of a main part of a sliding door stop mechanism.

FIG. 4 is a vertical cross-sectional view of a sliding door in contact with a door stop.

FIG. 5 is a vertical sectional view of a sliding door showing another embodiment of the present invention.

FIG. 6 is a partial cross-sectional side view of a main part of a stopping mechanism of a sliding door according to still another embodiment of the present invention.

[Explanation of Codes] P Sliding Door Pa End Face A Door Roller 1 Wheel S1 Friction Plate (Friction Member) S2 Operating Member S21 One End S22 Other End S3 Compression Coil Spring (Biasing Means)

Claims (1)

[Claims] 1. A sliding door stop mechanism for stopping a closed sliding door with a predetermined force, wherein the sliding door is displaced between a position for pressing a wheel of a door roller mounted on the sliding door and a position for releasing the pressing. A possible friction member, an end position where one end projects a predetermined amount from the end surface of the sliding door, and an evacuation position where the one end is flush with the end surface of the sliding door, and in the evacuation position, A stopping mechanism for a sliding door, comprising: an operating member for pressing the friction member toward the wheel side by the other end, and an urging means for urging the operating member to the advanced position.