JPS6219807Y2 - - Google Patents

Description

[Detailed description of the invention] This invention aims to provide a door roller mounting structure that is extremely easy to adjust for mounting on a sash, etc., and has excellent flexibility in mounting position.

When replacing a door roller that was previously attached to a sash etc. due to failure or aging,
If the new door roller for repair is exactly the same as the old door roller, there will be no problem when installing it to the sash, but normally it is rare that a new door roller that is identical to the old door roller is available.

Therefore, repair door rollers are required to be flexible enough to easily accommodate differences in the structure and dimensions of the mounting holes of the sashes that differ from manufacturer to manufacturer.

Then, there is a structure in which the protrusion of the pressure welding piece is expanded with the screw head itself that can be moved as a repair door wheel and attached to the sash (see Japanese Utility Model Publication No. 54-25151), or on the side of the bearing frame fixed body. A structure was devised in which a protruding fitting part was provided, and the door roller was fitted into the lower stile at this fitting part (see Japanese Utility Model Publication No. 50-57800), but the former had a weak contact force. Not only is it difficult to adjust, but because the screw itself moves, it is easy for the screw to loosen and move due to vibrations caused by opening and closing the sash, and there is a risk that the door roller may be misaligned or come off the sash during use.
In addition, with the latter, it is necessary to form a hole in advance for the fitting part protruding from the stile to fit into, which requires troublesome work such as punching, and also requires a hole in the lower stile. In the case of a sash that does not have a sash, there are problems such as it being impossible to mount and lacking in flexibility.

Therefore, this invention eliminates the drawbacks of the conventional products mentioned above and provides a convenient mounting structure that allows easy adjustment of mounting on the sash. The expansion members are pivoted concentrically near one end of each other so as to be able to expand to the left and right, and have claws protruding outward on the expansion side opposite to the pivot support. A pushing convex portion is formed on the inner surface of both expanding members, and the pawl portions of the expanding members are provided so as to be able to protrude from openings formed on both side walls of the door roller case. A pushing member is provided in the center of the expanding member and is movable from the expanding side edge to the shaft support side edge while coming into contact with the pushing convex portion, and the left and right side walls of the pushing member are provided with inclined grooves. form,
The sliding block, which is slidably inserted along the left and right inclined grooves, is screwed with an expansion adjustment screw that is rotatably attached to the door roller case with vertical movement restricted. The degree of expansion of the expansion member can be adjusted by freely moving the pushing member from the expansion side edge of the expansion member to the pivot side edge by rotating the expansion adjustment screw. It is characterized by

Next, embodiments of this invention will be illustrated below with reference to the drawings.

Reference numeral 1 denotes a door roller case, which is formed by bending a plate material into a frame shape, and wheels 2 of an appropriate structure are installed inside the center of the door roller case 1.

Reference numeral 3 denotes an expansion member, which is attached to the door roller case 1 at two locations, front and rear of the wheel 2 (first
(see figure).

The detailed structure of the expansion member 3 is shown in FIG. 2, and the expansion members 3, 3, which are made of metal plates or the like and have a substantially rectangular shape and are symmetrical to each other, are a set of two left and right expansion members 3, 3.
Near one vertical end of each, the upper and lower end sides are bent in the horizontal direction, and a shaft support hole 31 is formed through the upper and lower bent pieces 30, so that the left and right expansion members 3,
The left and right expansion members 3,
3 are attached to each other in a spiral manner so that they can be expanded.

Further, on the expansion side end side of the expansion member 3, which is opposite to the shaft support side end side, claw parts 33, 33, which are bent so as to have sharp tips and protrude outward, are provided vertically. Two claws are provided, and the length and shape of these claws 33, 33 are not limited to those shown.

Further, in the central portion of the expanding member 3, a pushing convex portion 34 is formed by smoothly protruding the inner surface.

A pushing member 4 having a substantially U-shaped horizontal cross section is arranged at the center of the pair of left and right expanding members 3, 3. , 3 is brought into contact with the pushing protrusions 34, 34 on the inner surface thereof, and the pushing member 4 is moved from the expansion side edge to the pivot side edge, so that the expansion members 3, 3 can be moved from side to side. It is starting to expand.

The left and right side walls of the pushing member 4 are formed with inclined grooves 40 cut out diagonally downward from the upper side ends.

Reference numeral 5 denotes a sliding block, which has a substantially cylindrical shape, and has protruding step portions 50 at both ends fitted into inclined grooves 40, 40 on the left and right side walls of the pushing member 4, and is attached thereto.
The sliding block 5 is adapted to be able to slide diagonally along the inclined groove 40.

A screw hole 51 is formed vertically through the center of the sliding block 5, and an expansion adjustment screw 6 is screwed into this screw hole 51.

Next, reference numeral 7 is a holding member, which is assembled by holding together the pair of expansion members 3, 3, the rotating shaft 32, the pushing member 4, the sliding block 5, and the expansion adjustment screw 6. It is.

The holding member 7 is made of a plate bent in a U-shape, and a rotation shaft 32 is provided on the tip side of the upper and lower horizontal pieces.
70, 70 are formed in the mounting holes, and square grooves 71, 71 are formed through the central part, so that projections 41 formed symmetrically at the upper and lower ends of the pushing member 4 can be inserted thereinto. , the pushing member 4 is in the square grooves 71, 71.
It is installed so that it can slide reliably back and forth along the However, it is also possible to implement the method without forming the rectangular groove 71 and the protrusion 41.

Further, mounting holes 72 and 73 for the expansion adjustment screw 6 are formed at the base sides of the upper and lower horizontal pieces, and a long hole-shaped mounting hole 72 is formed in the upper horizontal piece. . The flange 61 below the screw 6 is locked onto the mounting hole 73 to prevent it from moving downward.

Therefore, the pushing member 4 and the like are integrally attached to the holding member 7, and the positional relationship of each member is maintained accurately and assembly is facilitated.

Next, expansion members 3 are installed on the left and right side walls of the door roller case 1.
Apertures 10, 10 are formed corresponding to the outer shape of the openings 1, and when the holding member 7 and the like are installed in the door roller case 1, the left and right expansion members 3, 3 are inserted into the apertures 1.
It is installed so that it can be exposed from 0 and 10.

The rotating shaft 32 of the expanding member 3 is fixedly attached to the upper and lower surfaces of the door roller case 1 by inserting the holding member 7 and caulking the rotating shaft 32 in the form of a rivet. It is fixed to door roller case 1.

Further, the expansion adjustment screw 6 is fitted into a recessed groove 11 and a notch groove 12 formed on the upper and lower ends of the door roller case 1, and the screw head 6 is fitted on the lower surface of the door roller case 1.
0 is exposed to enable rotational operation, and the upper end is regulated by a recessed groove 11 so that the expansion adjustment screw 6 does not move up and down during the rotational operation.

Further, two protruding screws 8 are screwed onto the upper surface of the door roller case 1 at the front and rear, so that the tips of the screws can protrude upwards from the door roller case 1. Reference numeral 80 denotes a spring plate, which is screwed into the above-mentioned protruding screw 8 on the upper surface of the door roller case 1, and elastically presses the screw 8 during use to prevent the protruding screw 8 from loosening and shifting the vertical position of the door roller. (See Figure 5).

Among the structures described above, the claw portion 33 formed on the expansion member 3 may be implemented by changing the shape and number of the claw portions as appropriate, as long as the door roller can be fixed by pressing against the inner wall of the sash during use as described later. .

In addition to the illustrated embodiment in which the wheels 2 are simply supported by the door roller case 1, it is also possible to equip wheels with a vertical adjustment mechanism that can adjust the vertical position of the wheels 2.

After the door roller equipped with the mounting structure of this invention is inserted into the mounting hole S of a sash or the like, the expansion adjustment screw 6 is rotated from the lower surface of the door roller case 1.

As the screw 6 rotates, the sliding block 5 screwed onto the screw 6 moves in the vertical direction. Sliding block 5
Since the protruding step portions 50, 50 at both ends are fitted into the inclined groove 40 of the pushing member 4, the pushing member 4 is relatively
move in the front and back direction.

Next, the tip of the pushing member 4 comes into contact with the pushing protrusions 34, 34 of the expanding members 3, 3, and expands the expanding members 3, 3 to the left and right (see FIG. 3).

Then, the claw portions 33 of the expansion members 3, 3 are attached to the mounting holes S.
The door roller case 1 can be fixed at any desired position within the mounting hole S by being press-fitted into the inner wall of the mounting hole S (see FIG. 4).

In addition, by rotating the protruding screw 8 from the bottom side of the door roller case 1 and keeping the upper tip of the protruding screw 8 in contact with the ceiling surface of the mounting hole S, the entire door roller can be further removed from the mounting hole S. Prevents it from entering deep inside,
It can reliably support the weight of sliding doors, etc., and can even more reliably fix the position.

According to the mounting structure of this invention configured as described above, the expansion member 3 is attached to the inner wall of the mounting hole S of the sash, etc.
Since the door roller is fixed by pressing the claw portion 33 of the door roller, metal fittings such as mounting screws are completely unnecessary, and no mounting member is required on the mounting hole S side.

Therefore, as a door roller for repair, the existing mounting hole S
When installing it, it has nothing to do with the mounting hole method for old door wheels or the pitch of the pre-formed screw holes, etc.
It can be installed by selecting any mounting position. In particular, when the expansion adjustment screw 6, which is rotatably attached to the door roller case with vertical movement restricted, is rotated, the pushing member 4 is moved from the expansion side edge of the expansion members 3, 3. Since the expansion member moves toward the shaft support side edge and expands outward from the door roller, it is easier to finely adjust the expansion force compared to the conventional type described above, and the width of the mounting hole S can be adjusted. The adjustment range for fluctuations is very wide;
Moreover, it is possible to always apply an appropriate pressure contact force, and is highly flexible.

In addition, during installation, the entire door roller can be moved freely within the mounting hole S, and after setting the door roller in the optimum position for use, it is only necessary to expand and fix the expansion members 3, 3. Distortion and misalignment between fittings such as sashes and rails can be dealt with by finely adjusting the mounting position of the door roller, and readjustment work during use is also easy.

Moreover, after installation, the door roller mounting member is not exposed outside the mounting hole S of the sash, which gives it a good appearance and eliminates the need for processing such as forming or deforming a mounting hole on the sash side. Therefore, even when the door roller having the mounting structure of this invention is removed and replaced with another door roller, there is no problem at all.

Furthermore, in order to expand the expansion members 3, 3 to the left and right, the pushing member 4 is moved in the front-back direction and the pressing convex portions 34, 34 of the expansion members 3, 3 are pushed open left and right. In addition to stabilizing the operation, the pressing force against the mounting hole S can be sufficiently strong and evenly applied.

As mentioned above, it has great flexibility in the installation and adjustment of the door roller, and the installation and adjustment operations are easy, making it an extremely convenient mounting structure for repair door rollers, and exhibiting various excellent practical effects. It is something.

[Brief explanation of the drawing]

The figures illustrate an embodiment of this invention, in which Fig. 1 is an overall perspective view, Fig. 2 is an exploded perspective view of main parts, Fig. 3 is a cross-sectional view of the expansion member part,
FIG. 4 is a longitudinal cross-sectional view of the expansion adjustment screw portion showing the state of use, and FIG. 5 is a longitudinal cross-sectional view of the protruding screw portion. DESCRIPTION OF SYMBOLS 1... Door roller case, 10... Opening part, 2... Wheel, 3... Expansion member, 32... Rotating shaft, 33...
Claw portion, 34...Pushing convex portion, 4...Pushing member, 4
0... Inclined groove, 5... Sliding block, 6... Expansion adjustment screw.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A set of two expandable members installed in the door car case are pivoted concentrically near one end of each other so that they can be expanded left and right, and A claw portion protruding outward is formed on the expansion side end opposite to the expansion member, and a pushing convex portion is formed on the inner side of both expansion members. The claw portion of the expansion member is provided so as to be able to protrude from the hole,
A pushing member is provided at the center of both expanding members, and is movable from the expanding side edge to the shaft supporting side edge while coming into contact with the pushing convex portion. A sliding block formed with a groove and slidably inserted along the left and right inclined grooves is screwed with an expansion adjustment screw that is rotatably attached to the door wheel case with vertical movement restricted. By rotating the expansion adjustment screw, the pushing member can be freely moved from the expansion side edge of the expansion member to the pivot side edge, thereby adjusting the degree of expansion of the expansion member. A door roller mounting structure characterized by being freely adjustable. 2 Expanding members are located at the front and rear of the wheels of the door roller case.
The mounting structure of the door roller according to claim 1 of the above-mentioned utility model registration claim, which is provided at a location.