JP4555960B2 - Door car device - Google Patents

Description

  The present invention relates to a door car device including an attachment frame and a door wheel support frame that is attached to a lower end corner portion of the sliding door so that the position of the door wheel can be adjusted in the height direction and the width direction of the sliding door.

  Inside a residential building, for example, a sliding door that opens and closes an entrance / exit while sliding along a groove or rail is used as a fitting for opening / closing an entrance / exit formed in a partition wall that partitions adjacent rooms. It is used a lot. According to the sliding door, compared with the open door that opens and closes the door in a form that rotates around a hardware such as a hinge, the area occupied by the door when opening and closing the door can be made compact, It is possible to make more efficient use of this space. Moreover, in order to be able to perform opening and closing of the entrance / exit by the sliding movement of the said sliding door along the rail laid on the floor surface, for example, a doorwheel is attached to the sliding door. These door carts are pivotally supported by a main body case (mounting frame) that is attached so as to be embedded in a lower end corner portion of the sliding door via a screw, etc., and an inner housing portion of the main body case. By using a door drive device comprising a door drive body (door drive support frame), the door is installed in a predetermined position at the lower end of the sliding door in a strong and stable state.

  On the other hand, when the sliding door is installed inside, for example, an opening frame around the entrance / exit, the sliding door is inclined with respect to the opening frame due to the influence of dimensional errors and construction errors of the sliding door and the opening frame. When installed in a state, a gap may be formed between the surrounding opening frame and the like. Further, when the vertical frame and the horizontal frame constituting the sliding door frame are affected by drying shrinkage or the like, the vertical frame or the horizontal frame is bent or warped, and the frame is deformed in the width direction of the sliding door. When the sliding doors are arranged in a stacked manner, or when the sliding doors are housed in a door pocket so that they can be put in and out, for example, the sliding doors touch each other during sliding movement, As a result, the sliding door is easily damaged, and the sliding door is easily damaged.

On the other hand, for example, after installing the sliding door inside the opening frame, etc., if necessary, the position of the door wheel can be adjusted in the height direction and width direction of the sliding door to correct the tilt of the sliding door, There has been disclosed a door roller device that can avoid contact with other sliding doors or door pockets during sliding movement (see, for example, Patent Document 1 and Patent Document 2).
JP-A-9-125803 JP-A-10-259683

  However, after the installation of the sliding door, according to the conventional door driving device that enables the position adjustment of the door in the height direction and the width direction of the sliding door, any of the operations for adjusting the position of the sliding door is performed on the small edge of the sliding door. The position is sufficient because it is performed via the operation part for the rotation mechanism, slide mechanism, etc. provided exposed on the front end face wall part of the body case (mounting frame) that is the part arranged along the surface. Adjustment may not be possible. That is, since the position adjustment of the door wheel via these operation parts must be performed from the small edge surface of the sliding door, a considerable space remains between the small edge surface and the inner side surface of the opening frame around the entrance, for example. Otherwise, it is difficult to operate, for example, it is difficult to accurately adjust the tilt of the sliding door while looking at the gap while the small facet of the sliding door is in contact with the inner surface of the opening frame. is there.

  In addition, when the sliding door is housed so that it can be taken in and out of the door pocket, even when the sliding door is pulled out from the door pocket and the entrance is closed, the rear end of the sliding door is hidden inside the door pocket, It is impossible to perform operations on the small edge surface on the rear end side of the sliding door. Therefore, in such a case, for example, after removing the vertical frame cover material attached along the opening edge of the door pocket and removing the sliding door, the position of the door wheel is adjusted, and then the vertical door is installed again. The work of re-attaching the cover material is required, which requires a lot of labor, and it is difficult to accurately adjust the position of the door roller while the sliding door is still installed.

  The present invention has been made paying attention to such a conventional problem, and provides a door device that enables easy and accurate position adjustment of the door wheel in the height direction and the width direction after the installation of the sliding door. The purpose is to do.

The present invention is a door car device comprising a mounting frame and a door wheel support frame, which is attached to a lower end corner of the sliding door and is installed so that the door wheel can be adjusted in the height direction of the sliding door and the width direction of the facet. Through the screw mechanism provided on the mounting frame, the position of the door wheel is adjusted by swinging or sliding the door wheel support frame at the door wheel housing portion inside the mounting frame. And the operation of the screw mechanism is performed through a rotation operation portion exposed on a side wall portion of the mounting frame that is disposed along the side surface of the sliding door. screw mechanism which enables position adjustment in the direction, a width direction adjusting screw rod which is rotatably supported is provided so as to straddle the side wall portions on both sides of the mounting frame, along該巾direction adjusting screw rod Can move forward and backward in the width direction And a rear end wall portion disposed opposite to the front end wall portion of the mounting frame. A slide guide protrusion is provided to protrude on the surface to be contacted, and sandwiched vertical ribs are provided to protrude on the surface on the side of the door support frame. The door support frame is provided on both sides of the mounting frame. While being able to rotate around a pin shaft provided so as to straddle the side wall portion, the pinching vertical ribs of the door carriage base portion are sandwiched from both sides by a pair of pin shaft coupling ribs, It is designed to be pivotally supported by the pin shaft via a pin shaft connecting rib, and a semicircular shape along the outer peripheral surface of the pin shaft is formed at the tip of the sandwiched vertical rib of the door base A concave notch is formed on the rear of the mounting frame. A slide guide groove for slidably locking the slide guide ridge is provided on the inner side surface of the end wall portion, and a slidable engagement state between the slide guide ridge and the slide guide groove; Provided is a door roller device in which the door wheel base portion slides in the width direction of the small edge surface of the sliding door while being supported by the slidable engagement state of the concave notch of the sandwiched vertical rib and the pin shaft. This achieves the above object.

  And according to the door machine of this invention, it is preferable that the said rotation operation part is exposed in the said side wall part on the opposite side to the front end surface wall part of the said attachment frame on both sides of the said door wheel support frame. .

Further, according to the door roller device of the present invention, the screw mechanism that makes it possible to adjust the position of the door wheel in the height direction of the sliding door extends in parallel with the longitudinal direction of the top wall portion of the mounting frame and is rotatable. a threaded rod is supported is provided in the upper portion of the door roller accommodating portion, and a slider member which is movably screwed along the threaded rod, and the rod-side gear is secured to the threaded rod, rotatable to the side wall portions And a rotary adjustment rotary body having an operation part side gear which is integrated with the rod side gear and constitutes a gear mechanism, and is accommodated in the door carriage housing part so as to be vertically movable. It is preferable that it comprises a vertical movement connecting portion that is provided on an upper portion of the door carriage support frame and is connected to the slider member to move the door carriage support frame up and down as the slider member advances and retreats. There.

Furthermore, according to the door roller apparatus of the present invention, it is preferable that the screw rod provided on the upper portion of the door wheel housing portion is also rotated by an operation from an end surface rotation operation portion exposed on a front end surface wall portion of the mounting frame. .

  Here, in the above description, the width direction of the sliding door means the width direction in the small edge surface of the sliding door, which is also the thickness direction of the sliding door, and the front end surface wall portion of the mounting frame is along the small edge surface of the sliding door. Means an end face wall portion disposed on the front edge of the sliding door, and includes both an end face wall portion disposed on the front edge of the sliding door and an end face wall portion disposed on the rear edge.

  According to the door pulley apparatus of the present invention, the position adjustment in the height direction and the width direction of the door wheel can be easily and accurately performed after the installation of the sliding door.

  As shown in FIG. 1, the door pulley device 10 according to a preferred embodiment of the present invention is attached to the lower end corner of the sliding door 11 and can adjust the position of the door pulley 12 in the height direction X and the width direction Y of the sliding door 11. In addition, it is used for installation in a strong and stable state.

  That is, as shown in FIGS. 2 (a) to 2 (c) and FIGS. 3 (a) and 3 (b), the door cart device 10 of this embodiment includes a flat hollow box-shaped mounting frame 13 and a door cart 12. The door support frame 14 includes a door support frame 14 that is pivotally supported, and the door support frame 14 is rocked or slid by a door mechanism accommodating portion 15 inside the attachment frame 13 through a screw mechanism provided on the attachment frame 13. Thus, the position adjustment in the height direction X and the width direction Y of the door wheel 12 is performed, and the operation of the screw mechanism is performed by rotating the rotary operation parts 17 and 18 exposed on the side wall part 16 of the mounting frame 12. To be done through.

  Moreover, according to this embodiment, the rotation operation parts 17 and 18 are exposed in the side wall part 16 on the opposite side to the front end surface wall part 19 of the attachment frame 13 on both sides of the door support frame 14.

Furthermore, according to the present embodiment, the height direction screw mechanism that allows the position of the door 12 to be adjusted in the height direction X of the sliding door 11 extends in parallel with the longitudinal direction L of the top wall portion 20 of the mounting frame 13. together, a screw rod 21 provided at the upper portion of the rotatably supported by the door roller accommodating portion 15, the slider member 22 which is screwed to be movable forward and backward along the threaded rod 21, the rod-side gear 23 which is fixed to the screw rod 21 Rotating body for up / down adjustment, which is rotatably supported by the side wall portion 16 and has an operation unit 17 in the vertical direction, and has an operation unit side gear 24 which is integrated with the rod side gear 23 to form a gear mechanism. 25 and the top of the door support frame 14 that is housed in the door wheel housing 15 so as to be movable up and down, and is connected to the slider member 22 to support the door as the slider member 22 advances and retreats. 14 is moved up and down, is constituted by a vertical movement connection according recess 26 notch.

Furthermore, according to the present embodiment, the width direction screw mechanism that enables the position adjustment of the door 12 in the width direction Y of the sliding door 11 is provided so as to straddle the side wall portions 16 on both sides and is rotatably supported. A width direction adjusting screw rod 27 and a door wheel base 28 which is screwed along the width direction adjusting screw rod 27 so as to be able to advance and retreat in the width direction Y and to which the door wheel support frame 14 is connected.

  According to the present embodiment, the hollow box-shaped mounting frame 13 is formed by a molding means such as injection molding using a synthetic resin such as polyamide, polyacetal, polypropylene, or polybutylene terephthalate. , Having an arcuate cross-sectional shape at the upper end, having a flat, substantially hexahedral shape with side surfaces of about 30 to 60 mm in length, about 40 to 70 mm in width, and about 12 to 25 mm in width (thickness). ing. Further, the inner hollow interior surrounded by the pair of left and right side wall portions 16, the front end surface wall portion 19, the rear end surface wall portion 29, and the top surface wall portion 20 becomes the door carriage accommodating portion 15 having the lower surface as an opening surface. ing. Furthermore, the top surface wall portion 20 has a fixed pin insertion hole 30 that extends in the longitudinal direction L of the top surface wall portion 20 so as to penetrate the substantially central portion. In the upper part, concave depressions 31 are provided at two locations in the longitudinal direction.

The pair of left and right side wall portions 16 are respectively formed with a vertical operation opening 32 and a left and right operation opening 33 at positions where the vertical rotation operation portion 17 and the width direction rotation operation portion 18 face. A pin shaft insertion hole 35 into which both ends of the pin shaft 34 of the door pulley support frame 14 are inserted and fixed is formed. Further, an end surface operation opening 37 is formed in the front end surface wall portion 19 at a position that is disposed below the opening portion of the fixed pin insertion hole 30 and that faces the end surface rotation operation portion 36 of the screw rod 21.

  The door support frame 14 that pivotally supports the door pulley 12 connects a pair of side plates 38 arranged on both sides of the door pulley 12 to a U-shaped cross-sectional shape by a strip-like connection plate 39 at the upper end portion. It is formed by integrating, and at the lower part thereof, it is rotatably supported by a rotation support shaft 40 provided straddling the side plates 38 on both sides, and the door 12 has its lower part supported by the door support frame. In a state of projecting downward from 14, it is attached between the pair of side plates 38.

  Further, a pin shaft connecting rib 41 is provided on each side plate 38 on the side of the door wheel base portion 28 so as to protrude toward the door wheel base portion 28, and the pin formed in the pin shaft connecting rib 41 has an opening. By attaching the door pulley support frame 14 to the shaft insertion hole 42 so as to insert the pin shaft 34, the door roller support frame 14 can rotate around the pin shaft 34, and the door housing accommodating portion of the attachment frame 13. 15 is arranged. Further, as will be described later, sandwiched vertical ribs 43 that protrude to the side of the door support frame 14 and have a width substantially the same as the width between the pair of side plates 38 are provided on the door base 28. The pinwheel connecting frame 41 is pivotally supported by the pin shaft 34 via the pin shaft connecting rib 41 while the vertical rib 43 is sandwiched from both sides by the pin shaft connecting rib 41. As the door wheel support frame 14 is connected to the door wheel base portion 28 so as to hold the vertical ribs 43 between the pin shaft connecting ribs 41, along with the movement of the door wheel base portion 28 in the width direction Y, The door carriage support frame 14 can slide in the width direction Y. The width between the outer surfaces of the pair of side plates 38 of the door wheel support frame 14 is, for example, about 4 to 10 mm smaller than the hollow width of the door wheel housing 15, and the door wheel support frame 14 is reduced within this reduced range. The position of the door 12 can be adjusted in the width direction Y of the sliding door 11 by sliding.

Furthermore, a notch recess 26 for loosely connecting the slider member 22 is provided as an up-and-down movement connecting portion on the top of the door support frame 14. The notch recess 26 is cut out from the middle part in the longitudinal direction L of the connecting plate 39 constituting the upper end surface of the door support frame 14 to the upper part of the pair of side plates 38 so that the side surface is substantially rectangular. Is formed. The lower half portion of the slider member 22 can be loosely fitted and locked in the notch recess 26. The slider member 22 is moved to the rear end face wall 29 side of the mounting frame 13 so that substantially the entire lower half is inserted and locked in the notch 26 and the connecting plate 39 is arranged substantially parallel to the screw rod 21. Then (see FIG. 3A), the door 12 is slightly protruded below the mounting frame 13. Further, the slider member 22 is moved to the front end wall portion 19 side of the mounting frame 13, and the connecting plate 39 is tilted forward with respect to the screw rod 21 by rotating the door support frame 14 around the pin shaft 34. In the state (see FIG. 3B), since the amount of protrusion of the mounting frame 13 of the door wheel 12 is increased, by sliding the slider member 22 in the longitudinal direction L along the screw rod 21, It becomes possible to adjust the position of the door 12 in the height direction X of the sliding door 11.

  And according to this embodiment, the screw rod 21 which comprises a height direction screw mechanism is rotatable in the step part and recessed part in which the both ends were formed in the inner wall face of the door roller accommodating part 15 in the upper part of the door wheel accommodating part 15. By being locked, it is provided so as to extend in parallel with the fixed pin insertion hole 30 along the longitudinal direction L of the top wall portion 20. The screw rod 21 is provided with a male screw on the outer peripheral surface over substantially the entire length thereof, and a slider member 22 having a female screw hole is screwed thereto. Further, according to the present embodiment, the disk-shaped end surface rotation operation unit 36 is integrally joined to the end of the screw rod 21 on the front end surface wall portion 19 side, and the end surface rotation operation unit 36 is attached to the door wheel. One end of the screw rod 21 is rotatably supported by engaging with the stepped portion of the inner wall surface of the accommodating portion 15. The outer surface of the end surface rotation operation part 36 is arranged facing the end surface operation opening 37 formed in the front end surface wall part 19, so that the end surface rotation operation part 36 can be operated from the front end surface wall part 19 side. The slider member 22 can be slid along the screw lot 21 by rotating the screw rod 21.

  The slider member 22 screwed so as to be able to advance and retreat along the screw rod 21 is a substantially hexahedron-shaped member having a female screw hole. For example, the front shape viewed from the front end wall portion 19 side of the door wheel housing portion 15 is formed. By providing the rectangular shape that substantially matches the front shape of the upper half portion, the rotation of the slider member 22 itself is prevented, and co-rotation accompanying the rotation of the screw rod 21 is prevented. Further, when the screw rod 21 rotates, the slider member 22 advances and retreats in the longitudinal direction L along the screw rod 21, thereby adjusting the tilt angle of the door support frame 14 through the notch recess 26 which is a vertical movement connecting portion. This makes it possible to adjust the position in the height direction X by controlling the amount of protrusion of the door roller 12. The slider member 22 is restricted from moving toward the front end surface wall portion 19 by abutting against a stopper projection 44 provided so as to protrude downward from the lower surface of the top surface wall portion 20. Thus, it is possible to effectively prevent 22 from coming out of the notch recess 26 and the side plate 38 of the door support frame 14 jumping out below the mounting frame 13.

The rod-side gear 23 fixed to the screw rod 21 is a gear that is disposed closer to the rear end wall portion 29 than the slider member 22 and is integrally joined to the screw rod 21 concentrically. The rod side gear 23 meshes with the operation unit side gear 24 provided on the up / down adjustment rotating body 25 and constitutes a gear mechanism together with the operation unit side gear 24, thereby rotating the up / down adjustment rotating body 25. The rotation of the surface of the mounting frame 13 along the side wall 16 by the portion 17 is smoothly converted into the rotation of the screw rod 21.

The vertical adjustment rotating body 25 that is rotatably supported and attached to the side wall 16 of the mounting frame 13 is a rotating body having a circular drum shape, for example. The vertical adjustment rotator 25 causes the outer rotation operation portion 17 to face an upper and lower operation opening 32 formed in the side wall portion 16, and the inner operation portion side gear 24 is connected to the rod side gear 23 in the door carriage housing portion 15. It is attached in a state of meshing with. Then, by operating the rotation operation portion 17 from the side wall portion 16 side of the mounting frame 13, the vertical adjustment rotating body 25 is rotated left and right, and via a gear mechanism including the operation portion side gear 24 and the rod side gear 23. By rotating the screw rod 21 left and right, the slider member 22 can be advanced and retracted to easily adjust the height of the door wheel 12.

  Further, according to the present embodiment, the width direction adjusting screw rod 27 constituting the width direction screw mechanism is provided with a male screw on the outer peripheral surface over substantially the entire length, and the end surface portions on both sides are the rotation operation portions in the width direction. 18 is a member having a substantially cylindrical shape. The width-direction adjusting screw rods 27 are fitted in the left and right operation openings 33 in a state where the rotation operation parts 18 on both sides face the left and right operation openings 33 formed in the side wall 16 of the mounting frame 13. By attaching, it will be supported rotatably so that it may straddle the side wall part 16 of both sides.

  The door base portion 28 screwed to the width direction adjusting screw rod 27 is a member having a substantially hexahedron shape, and slide guide protrusions 45 a and 45 b are parallel to each other in a plane contacting the rear end wall portion 29. A protruding vertical rib 43 is provided to protrude from the surface of the door support frame 14 side. The door carriage base portion 28 is slidably moved along with the rotation of the width direction adjusting screw rod 27 by being screwed to the width direction adjusting screw rod 27 through a female screw hole penetrating the center portion in the width direction Y. . In addition, slide guide grooves 46a and 46b for slidably locking the slide guide protrusions 45a and 45b are provided on the inner side surface of the rear end face wall portion 29 so as to extend in parallel in the vertical direction. A semicircular concave notch along the outer peripheral surface of the pin shaft 34 is formed at the tip of the recessed vertical rib 43 so that the slide guide protrusions 45a and 45b and the slide guide grooves 46a and 46b can slide. Is firmly supported without rotating itself, while being firmly supported by the engaged state and the slidably engaged state of the concave notch of the sandwiching vertical rib 43 and the pin shaft 34. In this state, it is possible to slide in the width direction Y. This also allows the door support frame 14 and the door 12 connected and integrated with the door base 28 to slide and move stably in the width direction Y of the sliding door 11.

  The length (width) of the door carriage base portion 28 is, for example, about 4 to 10 mm smaller than the hollow width of the door wheel housing portion 15, as is the width between the outer surfaces of the pair of side plates 38 of the door wheel support frame 14. Thus, the position of the door wheel 12 in the width direction Y of the sliding door 11 can be adjusted by sliding the door wheel base portion 28 together with the door wheel receiving portion 15 within this reduced range.

  The door machine 10 of the present embodiment having the above-described configuration is attached to the lower end corner of the sliding door 11 by the same method as the conventional door car device 10. That is, as shown in FIG. 1, the door pulley device 10 is inserted into a mounting recess 47 having a shape matching the outer diameter shape of the door pulley device 10, which is notched in the lower end corner of the sliding door 11 in advance using a router or the like. After being installed in such a manner, the fixed pin 48 is driven through the fixed pin insertion hole 30, whereby the door roller device 10 is easily fixed to the lower end corner of the sliding door 11 in a strong and stable state. In addition, on the side surface of the lower end portion of the sliding door 11, an operation portion opening 49 is formed at a position that coincides with the vertical rotation operation portion 17 and the width direction rotation operation portion 18 when the cart device 10 is attached. The operation for adjusting the position of the door pulley 12 with respect to the door roller device 10 can be performed from the side surface of the sliding door 11 through the operation portion opening 49. While the operation for adjusting the position of the door pulley 12 is not performed, the operation units 17 and 18 may be made inconspicuous by attaching, for example, a rubber cap 50 to the operation unit opening 49. it can.

  And according to the door machine 10 of this embodiment, the position adjustment of the height direction and the width direction of a door wheel can be performed easily and accurately after installation of a sliding door. That is, according to the present embodiment, the door pulley support frame 14 is rocked or slid by the door wheel housing portion 15 inside the attachment frame 13 via the screw mechanism provided in the attachment frame 13, thereby Since the position adjustment is performed and the screw mechanism is operated through the rotation operation portions 17 and 18 exposed on the side wall portion 16 of the mounting frame 12, for example, the entrance / exit on the side surface of the sliding door 11 is performed. Position adjustment can be performed easily and accurately by operation from the front. In addition, since a space for operation is not required between the sliding door 11 and the small face of the sliding door 11, for example, the sliding door is accurately tilted while looking at the gap while keeping the sliding face of the sliding door in contact with the inner surface of the opening frame. It is possible to adjust the position well, and it is possible to easily adjust the position of the sliding door accommodated in the door pocket without removing the sliding door even in the installed state.

  Further, according to the present embodiment, the rotation operation parts 17 and 18 are exposed on the side wall 16 on the opposite side to the front end wall 19 of the mounting frame 13 with the door roller support frame 14 interposed therebetween. The rotation operation units 17 and 18 are arranged at positions considerably away from the small-mouthed surface of the sliding door 11, and thus, for example, the sliding door 11 constitutes a sliding door, and overlaps each other at the end. Even if this occurs, it is possible to easily perform an operation for position adjustment from the side surface of the sliding door 11 at a position where this overlapping portion is avoided.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, it is not always necessary to provide the rotation operation portion so as to be exposed on the side opposite to the front end surface wall portion of the mounting frame with the door support frame interposed therebetween. Further, the screw mechanism that enables the position adjustment of the door wheel in the height direction and the screw mechanism that enables the position adjustment of the door wheel in the width direction are not limited to the configuration of the above-described embodiment, and may have various other structures. Can be adopted. Furthermore, it is not always necessary to configure the screw lot provided in the upper part of the door housing accommodating portion so as to be rotated by an operation from the end surface rotation operation portion of the front end surface wall portion of the mounting frame.

It is a perspective view explaining the condition which attaches the doorrest apparatus concerning one embodiment of the present invention to the lower end corner of a sliding door. (A) is a side view of a door machine according to an embodiment of the present invention, (b) is an end view of (a) viewed from the left, and (c) is a bottom view of (a) viewed from below. . (A) And (b) is a sectional side view of the door machine concerning one embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Door vehicle apparatus 11 Sliding door 12 Door wheel 13 Mounting frame 14 Door wheel support frame 15 Door wheel accommodating part 16 Side wall part 17 Vertical rotation operation part 18 Width direction rotation operation part 19 Front end wall part 20 Top surface wall part 21 Screw rod 22 Slider member 23 Rod side gear (gear mechanism)
24 Operation unit side gear (gear mechanism)
25 Rotating body 26 for vertical adjustment 26 Notch recess (vertical movement connecting part)
27 Screw rod for adjusting width direction 28 Door base portion 32 Vertical operation opening 33 Left and right operation opening 36 End surface rotation operation portion 37 End surface operation opening 43 Pinch vertical rib X Sliding door height direction Y Sliding door width direction L Longitudinal length of top wall direction

Claims (4)

In the door car device comprising the attachment frame and the door wheel support frame, which is attached to the lower end corner of the sliding door and is installed so that the position of the door wheel can be adjusted in the height direction of the sliding door and the width direction of the small edge surface,
The position of the door wheel is adjusted by swinging or sliding the door wheel support frame at the door wheel housing portion inside the mounting frame via a screw mechanism provided on the mounting frame. ,
And the operation of the screw mechanism is to be performed via a rotation operation part exposed on a side wall part arranged along the side surface of the sliding door of the mounting frame,
A screw mechanism for adjusting the position of the door wheel in the width direction of the sliding door is provided so as to straddle the side wall portions on both sides of the mounting frame and is rotatably supported. It is screwed so as to be able to advance and retreat in the width direction along the direction adjusting screw rod , and comprises a door wheel base portion to which the door wheel support frame is connected,
The door carriage base portion is provided with a slide guide protrusion projectingly provided on a surface of the mounting frame that comes into contact with the rear end surface wall portion that faces the front end surface wall portion, and the door support On the surface on the frame side, sandwiched vertical ribs are provided to protrude,
The pinwheel support frame is sandwiched between the pinwheel base portions by a pair of pin shaft connecting ribs in a state of being rotatable about a pin shaft provided so as to straddle the side wall portions on both sides of the mounting frame. While supporting the vertical rib from both sides, it is supported by the pin shaft via the pin shaft connecting rib,
A semicircular concave notch along the outer peripheral surface of the pin shaft is formed at the distal end portion of the sandwiching vertical rib of the door base portion.
A slide guide groove for slidably locking the slide guide protrusion is provided on the inner side surface of the rear end face wall portion of the mounting frame,
The door wheel is supported by the slidable engagement state between the slide guide protrusion and the slide guide groove and the slidable engagement state of the concave notch of the sandwiched vertical rib and the pin shaft. The base part is a door-to-door device that slides in the width direction of the small facet of the sliding door.   The said rotation operation part is exposed to the opposite side to the front end surface wall part of the said attachment frame in the said side wall part arrange | positioned along the side surface of the said sliding door on both sides of the said door-car support frame. The door roller device described. The screw mechanism that allows the position of the door wheel to be adjusted in the height direction of the sliding door extends in parallel with the longitudinal direction of the top wall portion of the mounting frame, and is supported rotatably so that the door wheel is positioned above the door wheel housing portion. comprising a threaded rod which is provided, and a slider member which is movably screwed along the threaded rod, and the rod-side gear is secured to the threaded rod, the rotation operating part while being rotatably supported by the side wall portions And an upper and lower adjustment rotating body having an operation unit side gear constituting a gear mechanism integrally with the rod side gear, and an upper portion of the door support frame accommodated in the door wheel housing portion so as to be movable up and down. The door carriage device according to claim 1, further comprising a vertical movement connecting portion that moves the door carriage support frame up and down as the slider member advances and retreats by connecting to the slider member. The door rod device according to claim 3 , wherein the screw rod provided at an upper portion of the door wheel housing portion is also rotated by an operation from an end surface rotation operation portion exposed at a front end surface wall portion of the mounting frame.

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