JPH087005Y2 - Door roller structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a door roller used as a sliding door for furniture or fittings.

[0002]

2. Description of the Related Art Generally, the structure of this type of door roller is equipped with a wheel support casing that can be raised and lowered in the door roller case, and the wheels are axially supported by the wheel support casing to increase the height of the wheel with respect to the door roller case. It is known to be configured to make adjustments.

[0003]

However, a complicated cam mechanism is adopted in the structure of the conventional door roller, and the structure of operating the adjuster from the side surface of the door roller case is used for the level adjustment of the wheels. ing. Therefore, in order to attach to the sliding door, it is necessary to operate the adjuster after attaching the door roller case, so with the side surface of the door roller case exposed,
Must be installed. As a result, the structure of the door roller is complicated, the number of parts is large, manufacturing and assembling are troublesome, and the appearance of the side surface of the sliding door is impaired. Further, there is also a problem that the vertical movement length of the wheels due to the operation of the adjuster is small and the adjustment efficiency is poor.

[0004]

[Object of the Invention] The present invention has been made based on the above circumstances, and has a simple structure and a small number of parts,
It is an object of the present invention to provide a door roller structure which is easy to assemble and whose level can be adjusted efficiently and linearly from the lower side of the sliding door.

[0005]

Therefore, according to the present invention,
As is clear from the illustrated embodiment, the wheel support case 2 is provided in the door case 1 so as to be able to move up and down, and the wheel 3 is pivotally supported in the wheel support case 2 to support the wheel 3 with respect to the door case 1.
In the structure of the door roller configured to adjust the height of
An arc-shaped guide hole 1C is formed on the inner wall surface of the door roller case 1 so as to face one side surface of the wheel support housing 2 in the up-and-down direction of the wheel support housing 2 and is rotatable in the guide hole 1C. One side screw portion of the adjusting screw 4 inserted with the axial movement blocked is screwed into the arc-shaped screw groove 2B formed on the outer side surface of the wheel supporting housing 2, and the adjusting screw 4 is rotated. The wheel support housing 2 is characterized in that it can be moved up and down through the thread groove 2B.

[0006]

In the above structure, the adjusting screw 4 is screwed from the lower opening side of the door roller case 1. Then, the thread groove 2
The wheel support housing 2 linearly moves via B, and the position of the wheel 3 is adjusted up and down. Therefore, structurally, the adjusting screw 4, which functions as an adjuster, the wheel supporting case 2 screwed to the adjusting screw 4, the wheel 3, and the door roller case 1 are simple and easy to assemble, and the wheel is also easy to assemble. Since the level of 3 can be adjusted from the lower side of the sliding door 5, the door roller case 1 can be completely stored in the sliding door 5, the appearance of the sliding door 5 is not impaired, and the movement adjustment is linear and efficient.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the drawings. The structure of the door roller of the present invention shown in the drawings is a door roller case 1 of a bottom opening box type in which flanges 1A for screw attachment are projected on the lower portions on the left and right sides, and the door roller case 1.
Lower-side opening wheel support housing 2 that can be raised and lowered freely inside, and wheel support housing 2
It is composed of a wheel 3 which is axially supported inside, and an adjusting screw 4 which adjusts the height of the wheel with respect to the door roller case 1.

A storage portion 1B into which the wheel support housing 2 is slidably inserted is formed in the door roller case 1 from the opening side of the lower surface thereof. The storage portion 1B is located on one side thereof and is partially cut away. A guide hole 1C having a circular cross section is formed in the vertical direction of the wheel support housing 2, that is, the vertical direction. In this embodiment, vertically extending guide ridges 1D and 1D are formed on the inner wall surface of the storage portion 1B located on the guide hole 1C side, and these are formed on the outer wall surface of the wheel support case 2. It is slidably fitted in the grooves 2A, 2A.

Further, the adjusting screw 4 is adapted to be screwed into a half-divided screw groove 2B vertically formed on one side portion of the outer wall surface of the wheel supporting housing 2, and its screw body portion. The annular groove 4A formed on the inner surface of the door roller case 1 is slidably fitted to a semi-annular stopper portion 1E formed in the middle of the guide hole 1C on the inner wall surface of the door roller case 1 to prevent axial movement. It has been configured. An operation groove 4B for operating a driver is formed on the lower surface of the adjusting screw 4.

When assembling, first, the adjusting screw 4 is slid toward the accommodating portion 1B, inserted into the guide hole 1C, and the stopper portion 1E is fitted into the annular groove 4A so that the screw shaft center is normal. To the position of. Next, while turning the adjusting screw 4 and screwing the screw groove 2B into the adjusting screw 4, the door roller case 1
The wheel support housing 2 is inserted through the lower opening. A window hole 1G is formed in the top plate 1F of the door roller case 1, and the window hole 1G is formed.
A convex plate 2C protruding from the upper surface of the top plate of the wheel support case 2 is fitted therein from below. Further, the lower part of the wheel 3 projects from the lower surface openings of the door roller case 1 and the wheel support case 2.

The structure of the door roller thus assembled is as follows:
The main body of the door roller case 1 is inserted into the preformed slot of the sliding door 5 from below, and the flange portions 1A, 1A thereof are inserted.
By using a means such as a fixing tool 6 such as a tapping screw,
It can be attached to the sliding door 5. Then, if necessary, use a screwdriver or the like from below the sliding door 5 to adjust the adjusting screw 4
If the wheel support housing 2 is adjusted by screwing, the wheel support housing 2 linearly moves in the vertical direction, whereby the level of the wheel 3 can be easily adjusted.

[0012]

As described above, according to the present invention, the wheel support box is provided in the door case so as to be able to move up and down, and the wheel is supported by the wheel support box to adjust the height of the wheel with respect to the door case. In the structure of the door roller configured to perform, in the door roller case, an arc-shaped guide hole located on one side of the wheel support housing is formed in the vertical direction of the wheel support housing, The adjusting screw inserted in the hole is screwed into the arc-shaped screw groove formed in the wheel supporting housing, and is structured so as to be prevented from moving in the axial direction.
An adjustment screw that functions as an adjuster, a wheel support housing that is screwed to this, a wheel, and a door roller case are simple things.
Since the assembly is easy and the level of the wheels can be adjusted from the lower side of the sliding door, the door roller case can be completely housed inside the sliding door, and the excellent practical effects such as the appearance of the sliding door are not impaired. Further, since the wheel support housing is linearly moved in the vertical direction and the level of the wheel is adjusted by the screwing operation of the adjusting screw, the level adjustment of the wheel is linear, reliable, and efficient.

[Brief description of drawings]

FIG. 1 is an overall front sectional view showing an embodiment of the present invention.

FIG. 2 is likewise a bottom view of the above embodiment.

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

FIG. 4 is a perspective view of a wheel support case and an adjustment screw.

[Explanation of symbols]

1 Door roller case, 1A flange part, 1B storage part, 1C guide hole, 1D guide ridge, 1E
Stopper part, 1F top plate, 1G window hole, 2 wheel support housing, 2A concave groove, 2B screw groove, 2C
Convex plate, 3 wheels, 4 adjusting screws, 4A annular groove,
4B operation groove, 5 sliding doors, 6 fixtures,

Claims (1)

[Scope of utility model registration request] 1. A structure of a door roller configured so that a wheel support housing is provided in a door roller case so as to be able to move up and down, and a wheel is axially supported in the wheel support housing to adjust the height of the wheel with respect to the door roller case. In the inner wall surface of the door roller case, an arc-shaped guide hole is formed facing the one side surface of the wheel support housing in the up-and-down direction of the wheel support housing, and is rotatable in the guide hole. One side screw part of the adjustment screw inserted with the axial movement blocked is screwed into an arc-shaped thread groove formed on the outer surface of the wheel support housing, and the wheel support housing is rotated by turning the adjustment screw. A structure of a door roller which can be raised and lowered through the screw groove.