JPH0953361A - Height adjustable sash roller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To house a large-sized sash roller body in a sash roller case in such a manner as to be capable of protruding and retreating, and easily adjusting the sash roller height. SOLUTION: This sash roller is formed of a sash roller case 1 buried and fixed into a sliding door lower end part, a circular regulating frame 2 housed within the sash roller case 1 in such a manner as to be capable of protruding and retreating in the case lower direction, and having a circumferential surface slid with the inner surface of the sash roller case 1, a sash roller body 3 turnably supported by the adjusting frame 2, and a regulating tool 4 screwed to an adjusting screw 5 arranged in the regulating frame 2 and slid along the top surface within the sash roller case 1 by the turning operation of the adjusting screw 5. The regulating tool 4 is supported on the upper part of the regulating frame 2, and the regulating frame 2 is raised and lowered within the sash roller case 1 while it is turned by the turning operation of the adjusting screw 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a height-adjustable door roller, and in particular, it is attached to the lower end of a sliding door (including a sliding door), and the door roller is retracted from the lower end surface of the sliding door to facilitate the height adjustment of the sliding door with respect to the rail. The present invention relates to a height-adjustable door roller.

[0002]

2. Description of the Related Art Conventionally, a sliding door is attached to a lower end of a sliding door in order to easily move the sliding door along a rail laid on a floor surface. 2. Description of the Related Art A conventional door roller includes a door roller case which is partially or entirely embedded in a lower end of a sliding door and is attached with screws or the like, and a door roller body rotatably supported in the door roller case.

[0003]

The above-mentioned conventional door stroller is generally buried and fixed at the lower end of a sliding door, and the mounting height of the door stall is fixed. For this reason, it is necessary to adjust the height position of the door roller by mounting fittings or the like. However, since the conventional door roller is a fixed type, the height cannot be adjusted. In recent years, in order to solve this problem, a method of adjusting the height of a door roller has been proposed. By the way, in general, the larger the door roller, the more stable the running of the sliding door, but the size of the door roller body is significantly limited with respect to the size of the door mechanism upper case, and there is a problem that the door roller body cannot be enlarged. . The present invention solves the problems of the conventional height-adjustable door roller, allows a large door roller body to be retracted, and is housed in a door roller case so that the door roller height can be easily adjusted. The purpose is to provide a possible door car.

[0004]

To achieve the above object, a height-adjustable door roller of the present invention is provided with a door roller case that is embedded and fixed in a lower end portion of a sliding door, and can be retracted into the door roller case in a case downward direction. An arc-shaped adjustment frame that is housed and has a circumferential surface that is in sliding contact with the inner surface of the door case, the door wheel body that is rotatably supported by this adjustment frame, and the adjustment screw that is arranged on the adjustment frame It consists of an adjusting tool that slides along the top surface inside the door case by rotating the adjusting screw.The adjusting tool is supported on the upper part of the adjusting frame, and the adjusting frame is moved inside the door case by rotating the adjusting screw. It is characterized in that it is adapted to move up and down while turning.

The height-adjustable door roller of the present invention having the above-mentioned structure is such that the adjusting screw screwed to the adjusting screw is only rotated by rotating the adjusting screw with a screwdriver or the like from the outer surface of the door roller case. By moving along the top surface in the case, the height of the door roller can be easily adjusted by moving the adjustment frame up and down while turning in the door roller case according to the amount of movement of the adjusting tool. In this case, since the adjusting tool is configured to slide along the top surface of the interior of the door roller case, the outer diameter of the door roller main body can be made as large as possible to be stored in the door roller case.

The height-adjustable door roller of the present invention includes a door roller case that is embedded and fixed at the lower end of the sliding door, an adjustment frame that is housed in the door roller case so that the door frame can be retracted and retracted, and the door frame rotates. It is composed of a door roller body that is freely supported, and an adjusting tool that is screwed with an adjusting screw arranged in an adjusting frame, and that slides along the top surface of the door roller case by rotating the adjusting screw.
It is characterized in that the adjusting tool is brought into contact with the upper surface of the adjusting frame, and the adjusting frame is moved up and down in the door roller case by rotating the adjusting screw.

The height-adjustable door roller of the present invention having the above-mentioned structure is such that the adjustment screw screwed onto the adjustment screw is simply rotated by rotating the adjustment screw from the outer surface of the door roller case with a screwdriver or the like. By moving along the top surface of the case, the height of the door roller can be easily adjusted by moving the adjustment frame up and down in the door roller case according to the amount of movement of the adjusting tool.
In this case, since the adjusting tool is configured to slide along the top surface of the interior of the door roller case, the outer diameter of the door roller main body can be made as large as possible to be stored in the door roller case.

Further, the height-adjustable door roller of the present invention is characterized in that the upper surface of the adjusting frame is formed as an inclined surface.

In the height-adjustable door roller of the present invention having the above-mentioned structure, the height of the door roller can be easily adjusted because the adjustment frame whose upper surface is an inclined surface is pushed down by the adjusting tool and slides only in the vertical direction. It can be done smoothly.

Further, the height-adjustable door roller of the present invention is characterized in that an inclined engaging piece is formed at an upper end of the adjusting frame, and the inclined engaging piece is engaged with an engaging groove formed on a side surface of the adjusting tool. To do.

In the height adjustable door roller of the present invention having the above structure, the slant engaging piece formed on the upper end of the adjusting frame is engaged with the engaging groove formed on the side surface of the adjusting tool screwed with the adjusting screw. Therefore, by rotating the adjustment screw horizontally in the door case by rotating the adjustment screw in the forward or reverse direction, the adjustment frame that rotatably supports the door body can be accurately moved upward or downward. The adjustment frame can be prevented from falling out of the door roller case.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a height-adjustable door roller of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of the present invention. Reference numeral 1 denotes a door case that can be buried and stored at the lower end of the sliding door D, and two door cases 1 are usually buried at the lower end of the sliding door D. Further, the lower end surface of the door roller case 1 is opened to form a cavity 11 inside, and a mounting hole 15 penetrating the door roller case 1 in the longitudinal direction and an adjusting screw insertion holding hole 14 are formed at an upper position of one end side surface. Further, a stopper 12 having a U-shaped groove for holding the screw is hung on the inner surface 16 of the cavity of the door roller case 1 in order to regulate the moving range of the adjusting tool which is moved by the rotation of the screw. , Adjusting screw 5 inserted into the adjusting screw insertion holding hole 14
The intermediate part of the above is rotatably held in the U-shaped groove 13, and the tip of the screw is fitted into the recess 17 formed on the inner end surface of the case to rotatably support the adjusting screw 5.

Further, a door roller main body 3 having a required outer shape and diameter is provided in the cavity 11 of the door roller case 1, and adjustment frames 2 and 2 are provided on both side surfaces of the door roller main body 3, respectively.
The one in which the adjusting tool 4 is locked is inserted in the upper position of. The door roller main body 3 is as large as possible to fit in the cavity of the door roller case 1, and the support shaft 6 is directly attached to the center of the door roller main body 3 through the bearing B or directly so as to rotate easily. Through the insertion, both ends of the support shaft 6 are fitted and supported by the adjustment frame 2 along the outer surface of the door roller main body, and rotatably support the door roller main body 3.

As shown in detail in FIG. 5, the adjustment frame 2 has a flat plate shape and is sized and shaped to be housed in a door case, and has a shaft hole 21 for supporting the support shaft 6 and one end portion of the adjustment frame. And a support hole 22 for supporting the adjusting tool 4 is bored, and the outer shape is such that when the adjusting tool 4 is moved along the top surface of the cavity by the turning of the adjusting screw 5 screwed into the adjusting tool 4. 6 has a circular arc shape so that it can be swiveled, and the diameter passing through the support shaft is almost equal to the inner width of the cavity of the outer car case 1, is in contact with the inner surface of the cavity, and the adjustment frame 2 is swung and vertically. It is defined that sliding is possible.

As shown in detail in FIG. 5, the adjusting tool 4 is provided between two adjusting frames 2 and 2 facing each other. It is fitted and supported in the drilled support hole 22, and a screw hole 41 that penetrates the inside of the adjusting tool in a direction orthogonal to the support shaft 42 is formed. The adjusting screw is screwed into the screw hole 41. .

As shown in the figure, the adjusting tool 4 has a columnar shape, and a part of the peripheral surface of the adjusting tool 4 can be brought into contact with the inner top surface 16 of the door roller case 1, that is, slidable. This adjustment tool 4,
Adjustment frames 2 and 2 with a pair of door roller body 3 as a set
Is housed in the door roller case 1 as described above, but the lower portion thereof is abutted and slid on the inner surface of the door roller case 1 as shown in FIGS. It is configured so as to project downward from the lower end surface of the door roller main body 3 even when it is moved down, and not to contact a guide rail or the like.

As shown in FIGS. 1 and 4, the door frame is assembled in the door case 1 with the adjustment frames 2 and 2, the door body 3, the adjusting tool 4, and the adjusting screw 5 to form the door W, which is the lower end surface of the sliding door D. It is buried in the door roller mounting hole formed in. At this time, a part of the door roller main body 3 is projected from the lower end surface of the sliding door so that the hole 15
Insert the mounting screw 7 into the inside, and screw it into the sliding door D to fix it.

The height of the door roller main body is adjusted by adjusting screw 5
When the adjusting tool 4 screwed into this screw moves along the top surface of the door roller case by rotating the wheel to the left or right, the adjustment frame turns around the support shaft 6 and the door roller main body. The support shaft and the adjustment frame that support the dolly move up and down in accordance with the amount of movement of the adjusting tool to adjust the height of the door roller body. This state is shown in FIG. In order to facilitate this adjustment, the adjustment screw head side of the door roller W is attached so as to be on the side end outer surface side of the sliding door.

What is shown in FIGS. 7 to 9 is the second embodiment of the present invention.
An example will be described. In this second embodiment, the door roller case 1
Is formed in the same manner as the first embodiment, and the adjusting screw insertion holding hole 14 is formed.
The adjusting screw 5 is inserted and supported therein, and a snap ring or other washer-shaped stopper 51 is fixed to the tip of the adjusting screw to prevent the adjusting screw from coming off, and a position below the adjusting screw 5 on the side portion of the door roller case 1. The magnet M is embedded in the.

The adjustment frames 20 and 20 disposed opposite to both side surfaces of the door roller main body 3 are fixed by two to three or more connecting shafts 23 and 23 which are disposed at positions not contacting the door roller main body 3. The door roller main body 3 is rotatably supported by the support shaft 6, and the upper surface of the adjustment frame 20 is an inclined surface 24 as shown in FIG. 7, and the side end surface of the adjustment frame 20 is the door roller. It is attracted by the magnet M embedded in the case and prevents it from accidentally coming out of the door case.

An adjusting tool 40 screwed to the adjusting screw 5
Has a cylindrical shape as in the first embodiment, and the door roller case 1
Of the adjustment frame 20 and a part of the inclined surface 24 of the adjustment frame 20.

Therefore, in the second embodiment, the adjusting screw 5
By rotating the, the adjustment tool 40 moves along the inner top surface 16 of the door roller case 1 in accordance with the rotation amount of the adjustment screw. As a result, the adjusting tool 40 moves the inclined surface 24 of the adjusting frame 20.
On the other hand, the adjustment frame 20 is slid to be pushed down by the amount of movement of the adjusting tool and the angle of the inclined surface, and the door roller main body is lowered to adjust the height of the door roller. In addition, since the load of the sliding door is applied to the main body of the door roller when pushing up the door roller, only by moving the adjustment tool to the inner side of the door roller case, the load of the sliding door automatically rises. That is, the door roller body can be pushed into the door roller case.

FIGS. 10 to 13 show a third embodiment of the present invention. The door roller case 1 rotatably supports the adjustment screw 5 as in the first and second embodiments, and the door roller body 3 is rotatably supported in the internal cavity.
20 is inserted. This adjusting frame 20 is arranged along both side surfaces of the door roller main body 3 and fixed by the connecting shafts 23, 23.
Same as the embodiment. In addition, in the third embodiment, the upper end of the adjustment frame is tilted and is bent inwardly into an L shape to form a tilt engaging piece 25.
It is locked in the inclined groove 43 formed on the side surface of the adjusting tool 42 screwed into.

Since the adjuster 42 slidably contacts the inner top surface 16 of the door roller case 1, the adjuster 42 is screwed into the adjuster 42 to rotate the adjuster 42 so that the inner top surface 16 can be rotated.
The adjustment frame 2 that is locked in the locking groove 43 when moving along the
0 is raised, that is, it is immersed in the door case, or is lowered, that is, it is projected below the door case, and the door body is moved up and down to adjust the height of the door roller.

Therefore, in any of these embodiments, the adjustment tool is horizontally moved by the rotation of the adjustment screw to vertically move the adjustment frame that rotatably supports the door roller body to adjust the height. It is a thing.

[0026]

According to the height-adjustable door roller of the first aspect of the present invention, the adjustment tool is provided so as to be moved by the rotation of the adjustment screw along the top surface of the door roller case. Since the adjustment tool is horizontally moved by the rotation of the adjustment screw, the peripheral surface of the adjustment frame is restricted by the inner side surface of the door roller case and easily swivels and moves up and down. Since the main body protrudes and retracts from the lower end surface of the sliding door, the height can be easily adjusted, and the adjuster is configured to slide along the top surface of the interior of the door roller case. There is an advantage that the diameter can be made as large as possible to be housed inside.

According to the height-adjustable door roller of the second aspect of the present invention, the adjusting tool is provided so as to be moved by the rotation of the adjusting screw along the top surface of the door roller case. Since the adjustment tool is horizontally moved by the rotation of the adjustment screw, the peripheral surface of the adjustment frame is restricted by the inner side surface of the door roller case and easily moves up and down. The outer diameter of the door roller body is stored in the door roller case because the height is easily adjusted by protruding and retracting from the lower end surface and the adjustment tool is configured to slide along the top surface inside the door roller case. There is an advantage that the diameter can be made as large as possible.

According to the height-adjustable door roller of the third aspect of the present invention, the adjusting tool abutting on the inclined surface of the adjustment frame that rotatably supports the door roller body is horizontally moved by the rotation of the adjusting screw. When moving to, the inclined surface is pushed down, and the adjustment frame and the door roller main body slide vertically in the door roller case, which has the advantage that the height adjustment of the door roller becomes smooth.

According to another aspect of the present invention, in which the height is adjustable, the locking groove formed on the upper end of the adjusting frame is engaged with the engaging groove formed on the side surface of the adjusting tool screwed with the adjusting screw. Since it is stopped, the adjustment tool can be horizontally moved in the door roller case in the rotation direction of the adjustment screw, and the adjustment frame that rotatably supports the door roller body can be accurately slid up and down, There is an advantage that the height position of the door roller can be easily adjusted and the adjustment frame can be prevented from falling out of the door roller case.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing a first embodiment of a height-adjustable door roller of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a sectional view of a door roller case.

FIG. 4 is a vertical sectional side view of a height-adjustable door roller of the present invention.

5A and 5B are explanatory views of the adjustment frame and the adjustment tool, FIG. 5A is a front view of the adjustment frame, FIG. 5B is a side view of the adjustment frame, FIG. 5C is a front view of the adjustment tool, and FIG. is there.

FIG. 6 is an explanatory view showing a state where the door roller main body is lowered by turning the adjustment frame.

FIG. 7 is a longitudinal sectional front view of a second embodiment of the present invention.

FIG. 8 is a vertical sectional side view of the same.

FIG. 9 is a bottom view of the same.

FIG. 10 is a vertical sectional front view of a third embodiment of the present invention.

FIG. 11 is a side view of the adjustment frame and the door roller main body.

FIG. 12 is a side view of an adjustment frame incorporating an adjustment tool.

FIG. 13 is an explanatory diagram of an adjusting tool.

[Explanation of symbols]

 1 Door Car Case 11 Cavity 2 Adjustment Frame 20 Adjustment Frame 24 Inclined Surface 25 Inclined Engagement Piece 3 Door Car Body 4 Adjustment Tool 40 Adjustment Tool 42 Adjustment Tool 43 Inclined Groove 5 Adjustment Screw 6 Spindle

Claims (4)

[Claims] 1. A door roller case which is embedded and fixed in a lower end portion of a sliding door, and an arcuate adjustment frame which is housed in the door roller case so as to be retractable downwardly of the case and whose peripheral surface is in sliding contact with the inner surface of the door roller case. A door roller body rotatably supported on this adjustment frame,
It consists of an adjusting tool that is screwed into the adjusting frame and that slides along the top surface of the interior of the door roller case by rotating the adjusting screw.The adjusting tool is supported on the upper part of the adjusting frame. A height-adjustable door roller in which the adjustment frame is swung up and down in the door roller case by turning the adjustment screw. 2. A door roller case which is embedded and fixed in a lower end portion of a sliding door, an adjustment frame which is housed in the door wheel case so as to be retractable downward in the case, a door roller body which is rotatably supported by the adjustment frame, and an adjustment frame. It is composed of an adjusting tool that is screwed with the adjusting screw that is arranged on the inner surface of the door roller case and that slides along the top surface of the door roller case by rotating the adjusting screw. A height-adjustable door roller in which the adjustment frame is moved up and down in the door roller case by rotating a screw. 3. The height-adjustable door roller according to claim 2, wherein the upper surface of the adjustment frame is formed as an inclined surface. 4. The height adjustable according to claim 2, wherein an inclined engaging piece is formed on an upper end of the adjusting frame, and the inclined engaging piece is engaged with an engaging groove formed on a side surface of the adjusting tool. A door car.