JP2019183567A - Automatic closing device of sliding door - Google Patents

Abstract

To make it possible to use common parts without requiring any special member and to simplify installation and handling of a wire fed out from a spiral spring type biasing device.SOLUTION: There are provided a suspended wheel-type runner device 3 fixed to the upper end of a sliding door 1 and capable of traveling freely along a guide rail 2 fixed to a head of a door frame; and a spiral spring type biasing device 5 which is fixed to a side in an opening direction of the sliding door 1 from the suspension wheel-type runner device 3, in which a wire 4 that is fed out is fixed to the guide rail 2 or a door frame at the end of the sliding door 1 in a closing direction, and the sliding door 1 is biased in the closing direction by winding the wire 4. The suspension wheel-type runner device 3 is provided with a runner body 6 which can freely travel along the guide rail 2, a runner attaching member 7 which is fixed to the upper end of the sliding door 1, and a connecting member 8 which connects the runner body 6 and the runner attaching member 7. The connecting member 8 is provided with a wire insertion portion 9 through which the wire 4 can be inserted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an apparatus for automatically closing an open sliding door by providing a spiral spring type urging device.

  Conventionally, various automatic closing devices for sliding doors have been proposed. For example, the following Patent Document 1 discloses a sliding door that allows a sliding body to automatically close by its own weight by traveling on an inclined rail, and the following Patent Document 2 is slidable in a cylinder. Patent Document 3 discloses a self-closing mechanism of a winding spring type attached to the upper collar, and the urging force thereof is disclosed. There is disclosed a device which can be automatically closed by fixing a wire end to a sliding door pulley. Further, in Patent Document 4 below, a rotating body around which a wire is wound rotates in one direction so that a compression coil spring compresses and accumulates, and the rotating body rotates in the other direction by the restoring force of the compression coil spring. Thus, the door closing force transmitted to the sliding door via the wire is disclosed.

  Further, in the above-mentioned Patent Document 3, a braking mechanism having a pinion is attached to the upper end portion of the sliding door, a braking rack in which the pinion is engaged is attached to an upper collar portion, and the pinion is connected to the braking rack. It is also disclosed that braking can be applied only while meshing.

International Publication No. 2017/073277 JP-A-7-189549 JP 2001-303843 A JP 2011-208443 A

  However, in the automatic closing devices described in Patent Documents 1, 2, and 3, a special inclined rail, a self-closing weight, and a braking mechanism are provided in comparison with a normal device that does not include such an automatic closing device. In addition, it is necessary to install a braking rack or the like, and it is difficult to make a common member with a normal one, and there is a problem that the manufacturing cost increases.

  Further, the automatic closing device described in Patent Document 4 has problems such as complicated wire handling and easy failure, and the device itself is complicated and difficult to maintain.

  Therefore, the main problem of the present invention is to provide an automatic closing device for a sliding door that enables the common use of members without requiring a special member and simplifies the installation and handling of the wire fed from the spiral spring type biasing device. It is to provide.

In order to solve the above-mentioned problem, as the present invention according to claim 1, the suspended-runner type runner device that is fixed to the upper end portion of the sliding door and is allowed to run along a guide rail fixed to a duck of the door frame, It is fixed to the opening direction side of the sliding door from the suspension wheel type runner device, and the drawn-out wire is fixed to the guide rail or the door frame at the end in the closing direction of the sliding door, and is wound on the sliding door by winding the wire. A spiral spring-type biasing device that applies a biasing force in the closing direction;
The suspension vehicle type runner device includes a runner body that can run along the guide rail, a runner mounting member that is fixed to an upper end of the sliding door, and a connecting member that connects the runner body and the runner mounting member. Prepared,
An automatic closing device for a sliding door is provided, wherein the connecting member is provided with a wire insertion portion through which the wire can be inserted.

  In the first aspect of the present invention, the suspension wheel type runner device that suspends the sliding door along the guide rail, and the spiral spring type urging device that applies the urging force in the closing direction to the sliding door by winding the drawn-out wire. Is provided. At this time, the members such as the suspension wheel type runner device and the guide rail can be used even in a normal sliding door that does not have an automatic closing function, and does not require a special member, and a sliding door having an automatic closing function. It becomes possible to share members with ordinary sliding doors.

  Further, the suspension vehicle type runner device includes a connecting member that connects the runner body and the runner mounting member, and the connecting member is provided with a wire insertion portion through which the wire can be inserted. When erected, the wire drawn out from the spiral spring urging device may be inserted into the wire insertion portion and fixed at a predetermined position on the guide rail or door frame, so that the installation and handling of the wire is simplified. become able to.

  According to a second aspect of the present invention, in the first aspect of the present invention, the connecting member is composed of two plate members disposed so as to face each other, and the two plate members are disposed apart from each other at least in the wire insertion portion. A sliding door automatic closing device is provided.

  In the invention according to the second aspect, as the structure of the connecting member for connecting the runner main body and the runner mounting member of the suspension vehicle type runner device, the wire insertion portion is usually configured by a shaft member. It is set as the structure which has arrange | positioned two board | plate materials suitable for forming this. Therefore, the wire insertion part can be formed by a separation part in which two plate members are arranged separately.

  The sliding door according to any one of claims 1 and 2, wherein the spiral spring-type biasing device is provided by being fitted to a notch portion formed at an upper end portion of the sliding door. An automatic closing device is provided.

  In the third aspect of the present invention, when the spiral spring biasing device is provided on the sliding door, the spiral spring biasing device is provided because the spiral spring biasing device is fitted in a notch formed at the upper end of the sliding door. In this case, the members fixed to the building such as the door frame and the guide rail are not affected, and ordinary members can be used as these members, so that the members can be shared.

  The present invention according to claim 4, wherein the wire fed upward from the spiral spring urging device is turned in the opening / closing direction of the sliding door by a pulley. A sliding door automatic closing device is provided.

  In the invention according to claim 4, since the pulley is used to change the direction of the wire fed upward from the spiral spring biasing device in the opening / closing direction of the sliding door, the handling of the wire is simplified. The wire can be drawn and wound smoothly.

  As a fifth aspect of the present invention, there is provided a sliding door automatic closing device according to any one of the first to fourth aspects, wherein a retracting device is provided that retracts the sliding door to a closed position when the sliding door is closed.

  According to the fifth aspect of the present invention, by providing the retracting device, when the sliding door automatically closes, it prevents the impact sound and the rebounding of the sliding door due to the forceful closing, and the sliding door is slowly pulled to the closed position. It becomes like this.

  As described above, according to the present invention, it is possible to share a member without requiring a special member, and it is possible to simplify the installation and handling of the wire fed out from the spiral spring biasing device.

It is a front view of the important section of sliding door 1 (closed state) using the automatic closing device concerning the present invention. It is a disassembled perspective view of the principal part of the sliding door 1 using the automatic closing apparatus which concerns on this invention. It is a perspective view of the suspension vehicle type runner apparatus 3. FIG. The suspended vehicle type runner device 3 is shown, (A) is a side view, and (B) is a front view. It is a disassembled perspective view of the spiral spring type urging device. The spiral spring type urging device 5 is shown, (A) is a front view and (B) is a perspective view. 2 is an exploded perspective view showing an end portion of a guide rail 2. FIG. FIG. 3 is an exploded perspective view showing the retracting device 21.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1 and FIG. 2, the automatic closing device for a sliding door according to the present invention is fixed to the upper end of the sliding door 1 and is allowed to run along a guide rail 2 fixed to the head of the door frame. The suspended vehicle type runner device 3 is fixed to the upper end portion of the sliding door 1 in the opening direction from the suspended vehicle type runner device 3 and the drawn-out wire 4 is a guide rail 2 or door at the end of the sliding door 1 in the closing direction. A spiral spring biasing device 5 is provided that is fixed to the frame and applies a biasing force in the closing direction to the sliding door 1 by winding the wire 4. As a result, the sliding door 1 automatically closes when the spiral spring biasing device 5 winds up the wire 4 fed from the spiral spring biasing device 5 by the opening operation of the sliding door 1. Yes.

  As shown in FIGS. 3 and 4, the suspended-car runner device 3 includes a runner body 6 that can run along the guide rail 2 and a runner mounting member 7 that is fixed to the upper end of the sliding door 1. And a connecting member 8 that connects the runner body 6 and the runner mounting member 7.

  The connecting member 8 is provided with a wire insertion portion 9 through which the wire 4 can be inserted. That is, the wire 4 extending from the spiral spring type urging device 5 fixed to the opening direction side of the sliding door from the suspension wheel type runner device 3 is fixed to the end of the sliding door 1 in the closing direction through the wire insertion portion 9. It is like that.

  Except for the point that the wire insertion part 9 is provided in the connecting member 8, the runner body 6 and the guide rail 2 of the suspended wheel runner device 3 are members that can be used even in ordinary sliding doors that do not have an automatic closing function. For this reason, in particular, the guide rail 2 fixed to the door frame and the runner main body 6 incorporated in the guide rail 2 do not require any special member and can be used in common.

  Moreover, since the wire insertion part 9 into which the wire 4 drawn out from the spiral spring type urging device 5 can be inserted is provided in the connecting member 8 of the suspension wheel type runner device 3, when the sliding door 1 is installed, Since the wire 4 drawn out from the spiral spring type urging device 5 may be inserted into the wire insertion portion 9 and fixed at a predetermined position, installation and handling of the wire 4 can be simplified.

Hereinafter, the automatic closing device for the sliding door will be described in more detail.
As the guide rail 2, a guide rail used for a general sliding door can be used as it is, and no special rail is required. As shown in FIG. 2, the guide rail 2 has a slit 2 a that can move in the rail longitudinal direction with the connecting member 8 of the hoist type runner device 3 engaged with the center of the lower surface over the entire length in the rail longitudinal direction. Are formed on both sides of the slit 2a, and travel grooves 2b, 2b (see FIG. 7) in which rollers 11, 11,. It is formed in a shape. The guide rail 2 is fixed to the lower surface of the door frame head by fixing screws inserted through a plurality of through holes provided on the ceiling surface.

  As shown in detail in FIG. 4, the runner main body 6 of the suspended-car runner device 3 has two rollers 11, 11... Supported by roller support shafts 10 A, 10 B, two on each side of the roller support member 12. These rollers 11, 11... Are movable along the guide rail 2 by rolling the running grooves 2 b, 2 b (see FIG. 7) of the guide rail 2.

  As shown in FIG. 2, the runner mounting member 7 includes a fixed pedestal 7a fixed to a notch 1a formed at a corner of the upper end of the sliding door 1, and a mounting member fitted to the fixed pedestal 7a. It is comprised from the main body 7b and the cover material 7c which covers the side surface of this attachment member main body 7b. The runner mounting member 7 may be provided with an adjustment mechanism for adjusting the vertical position and / or indoor / outdoor position of the sliding door 1.

  As shown in FIGS. 3 and 4, the connecting member 8 is composed of two plate members 13, 13 arranged facing the indoor / outdoor direction of the sliding door 1, and at least the two pieces of the wire insertion portion 9 are the two pieces. The plate members 13 and 13 are spaced apart. That is, the wire insertion portion 9 penetrating in the opening / closing direction of the sliding door 1 is formed by a separation portion in which the two plate members 13 and 13 are arranged separately in the indoor / outdoor direction of the sliding door 1. The upper portions of the two plate members 13 and 13 are respectively fixed to both sides of the roller support member 12 in the runner body 6, and the width of the roller support member 12 is generally determined by portions extending below the roller support member 12. Wire insertion portions 9 are formed that are separated by a distance. On the other hand, the lower portions of the two plate members 13 and 13 are provided so as to sandwich the plate member protruding upward provided on the runner mounting member 7 from both sides, and are fixed by a shaft member penetrating them integrally. . The two plate members 13, 13 extending upward from the runner mounting member 7 are provided with a widened portion with an increased separation width at the intermediate portion, and ensure a separation width for the wire insertion portion 9.

  In general, the suspension-car runner device is provided at both ends of the sliding door in the opening / closing direction, but the suspension-car runner device 3 in which the wire insertion portion 9 is formed is provided only at the end of the sliding door 1 in the closing direction. A suspension type runner device in which the wire insertion part 9 is not formed may be provided at the end on the direction side. However, from the viewpoint of common use of members, the wire insertion part 9 is formed as all suspension type runner devices. It is preferable to use the suspended runner type runner device 3.

  Next, as shown in FIG. 5, the spiral spring urging device 5 is provided by being fitted into a notch portion 14 formed at the upper end portion of the sliding door 1. The notch 14 is an upper end of the sliding door 1 and is provided at a position closer to the closing direction in the middle of the opening / closing direction, and is formed in a substantially rectangular shape penetrating the sliding door 1 in the indoor / outdoor direction.

  As shown in FIGS. 5 and 6, the spiral spring biasing device 5 includes a casing 15 fixed to the sliding door 1, a spiral spring biasing device main body 16 fixed to the casing 15, and the casing. 15 and a pulley 17 that changes the direction of the wire 4 that is fed out from the spiral spring urging device main body 16. The casing 15 is formed with recessed portions 15a that are recessed substantially by the thickness of the sliding door 1, and flange portions 15b and 15b having through holes for screwing to the surface of the sliding door 1 are formed on both sides thereof. . A screw hole for screwing the spiral spring urging device main body 16 is formed on the bottom surface of the recessed portion 15a, and the pulley 17 is attached to the upper end portion.

  The spiral spring urging device main body 16 has a main member packaged inside an exterior body that is formed in a size that can be fitted into the recessed portion 15 a of the casing 15. Inside this, a support shaft, a winding drum for winding the wire 4 supported rotatably by the support shaft, an inner end locked to the support shaft, and the winding drum And a spiral spring member whose outer end is locked (not shown). As the sliding door 1 is opened, the wire 4 is fed out from the winding drum and is stored in the spiral spring member by the rotation of the winding drum. Thereafter, when the opening operation is stopped, the winding drum is rotated in reverse by the restoring force of the stored spiral spring member, the wire 4 is wound around the winding drum, and the sliding door 1 is automatically closed. ing.

  An opening through which the tip of the wire 4 extends is provided on the upper surface of the exterior body of the spiral spring urging device main body 16. The wire 4 extending from the opening is drawn out with the spiral spring biasing device 5 attached to the sliding door 1 with the substantially central portion of the sliding door 1 in the indoor / outdoor direction (thickness direction) facing upward. It has become.

  The pulley 17 is for changing the direction of the wire 4 fed upward from the spiral spring urging device main body 16 in the opening / closing direction of the sliding door 1. The pulley 17 is disposed at a substantially central portion in the indoor / outdoor direction (thickness direction) of the sliding door 1, and the wire 4 is disposed at the central portion of the sliding door 1 in the indoor / outdoor direction along the opening / closing direction. As shown in FIG. 1, the upper end of the pulley 17 is provided so as to protrude above the upper end of the sliding door 1, and the wire 4 changed in the opening / closing direction of the sliding door 1 is spaced above the upper end of the sliding door 1. Are arranged.

The tip of the wire 4 fed out from the spiral spring biasing device 5 is fixed to the guide rail 2 or the door frame at the end of the sliding door 1 in the closing direction. In the example shown in FIGS. 1 and 5, the guide rail 2 is fixed to the end. In order to fix the tip end of the wire 4 to the end of the guide rail 2, as shown in FIG. While fixing the front-end | tip cap 19 with which it was equipped, the front-end | tip of a wire is turned back, the loop part 4a is formed, and this loop part 4a can be performed by latching on the said latching shaft 18. FIG. The tip cap 19 has a main body portion fitted into the guide rail 2, and the hook shaft 18 is provided to protrude downward from the slit portion 2 a of the guide rail 2. A fixing extension portion 19a extending to the guide rail 2 is provided, and a fixing screw 20 that integrally inserts the through hole formed in the fixing extension portion 19a and the through hole formed in the guide rail 2 is provided. Fixed to Kamoi. Although not shown, the tip of the wire 4 may be directly screwed to the door frame or the guide rail 2. In the automatic door closing device according to the present invention, as shown in FIG. It is preferable to provide a retracting device 21 that retracts the sliding door 1 to the closed position when 1 is closed. As the retracting device 21, those generally used as a retracting device for a sliding door can be used without limitation. The retracting device 21 is provided, for example, in a state where the retracting device main body 22 that can move in the guide rail 2 together with the sliding door 1 is protruded inward from the ceiling surface of the guide rail 2. The main body 22 is provided with an engagement pin 23 that is in a relationship of engaging with and disengaging from the main body 22.

  As shown in FIG. 1, the retracting device main body 22 is slidably provided along the opening / closing direction of the sliding door 1 and engages with a slide guide groove 22a formed in the case. A slider 22c having a protrusion 22b and having an upper end engaged with and disengaged from the engagement pin 23, and a piston type damper provided in the case with a piston tip connected to the slider 22c (see FIG. And a spring member (not shown) that has one end locked to the slider 22c and the other end locked to the case, and applies a biasing force in the retracting direction of the sliding door 1 to the slider 22c. Can be used.

  When the sliding door 1 is closed, the slider 22c is engaged with the engagement pin 23 so that the sliding door 1 is pulled to the closed position by the biasing force of the spring member while receiving the braking force of the piston type damper. It has become.

  DESCRIPTION OF SYMBOLS 1 ... Sliding door, 2 ... Guide rail, 3 ... Suspension wheel type runner device, 4 ... Wire, 5 ... Spiral spring type urging device, 6 ... Runner main body, 7 ... Runner attachment member, 8 ... Connection member, 9 ... Wire insertion part DESCRIPTION OF SYMBOLS 10A * 10B ... Roller spindle, 11 ... Roller, 12 ... Roller support member, 13 ... Plate material, 14 ... Notch part, 15 ... Casing, 16 ... Spiral spring type urging device main body, 17 ... Pulley, 18 ... Hanging Stop shaft, 19 ... tip cap, 20 ... fixing screw, 21 ... retractor, 22 ... retractor body, 23 ... engagement pin

Claims (5)

A suspension-type runner device that is fixed to the upper end of the sliding door and is allowed to run along a guide rail fixed to the head of the door frame, and is fixed to the opening direction side of the sliding door from the suspension-type runner device A spiral spring type urging device in which the drawn-out wire is fixed to the guide rail or the door frame at the end of the sliding door in the closing direction, and applies a biasing force in the closing direction to the sliding door by winding the wire. ,
The suspension vehicle type runner device includes a runner body that can run along the guide rail, a runner mounting member that is fixed to an upper end of the sliding door, and a connecting member that connects the runner body and the runner mounting member. Prepared,
An automatic closing device for a sliding door, wherein the connecting member is provided with a wire insertion portion through which the wire can be inserted.   The automatic closing device for a sliding door according to claim 1, wherein the connecting member is composed of two plate members arranged so as to face each other, and the two plate members are spaced apart from each other at least in the wire insertion portion.   The automatic closing device for a sliding door according to any one of claims 1 and 2, wherein the spiral spring biasing device is fitted in a notch formed at an upper end portion of the sliding door.   The automatic closing device for a sliding door according to any one of claims 1 to 3, wherein the wire fed upward from the spiral spring urging device is turned in the opening / closing direction of the sliding door by a pulley.   The automatic closing device of the sliding door in any one of Claims 1-4 with which the drawing-in apparatus which draws in the said sliding door to a closed position at the time of closing of the said sliding door is provided.

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