JP7091932B2 - Suspended car - Google Patents

Description

The present invention relates to a hanging vehicle used for fittings such as sliding doors, folding doors and movable partitions.

In sliding doors, folding doors, movable partitions, etc., suspension vehicles including a runner provided with a roller that rolls around a horizontal axis along a hanger rail (guide rail) and a hanger shaft supported by the runner are widely used. ..

In such a hanging car, for facilitating the work of attaching the hanging car to the upper end of the door or the partition panel with the runner inserted in the hanger rail, and for facilitating the opening / closing operation of the sliding door, the folding door, the movable partition, etc. In addition, a four-wheel configuration in which the rollers are attached to the front, back, left and right of the runner body is used (see, for example, Patent Document 1).

On the other hand, there is a simple two-wheeled suspension vehicle used for an accordion door or the like (see, for example, Patent Document 2).
The suspension wheel of Patent Document 2 has a mounting frame 4 hanging from the outer and lower sides of a holding ring body 3 that rotatably holds a rolling element 5 of a rolling bearing on an inner surface to form a support 1 and rotates inside the holding wheel body 3. The rod 2 is inserted and held, and the rotating rod 2 is enormous on both sides of the holding ring body 3 to form sliding enumeration portions 6 and 6.

Japanese Patent No. 5137180 Jitsukaisho 50-60829 Gazette

In a four-wheeled suspension vehicle as in Patent Document 1, a pair of left and right rollers are pivotally supported by front and rear roller shafts, and a structure in which rolling bearings are arranged between each roller and the roller shaft is the mainstream. In this structure, the operability when opening and closing fittings such as sliding doors, folding doors, and movable partitions is improved, but the manufacturing cost increases because four rolling bearings are required for each suspension wheel.

On the other hand, a simple two-wheeled hanger used for an accordion door or the like as in Patent Document 2 has a very large backlash. Therefore, when the structure as in Patent Document 2 is used as a four-wheeled hanger for the fitting. In addition, the four rollers on the front, back, left and right are likely to induce a phenomenon of contacting the runner body and the side surface of the hanger rail, and the fitting cannot be opened and closed smoothly, so that the operability is significantly reduced.
Therefore, a simple two-wheeled suspension vehicle as in Patent Document 2 is not suitable for a four-wheeled suspension vehicle.

Therefore, in view of the above-mentioned situation, the problem to be solved by the present invention is to reduce the manufacturing cost by eliminating the need to provide four rolling bearings in a four-wheeled suspension vehicle, and to provide sliding doors, folding doors, movable partitions, etc. It is to maintain operability that allows the fittings to be opened and closed smoothly.

Inventors of the present application, in a four-wheel suspension vehicle used for fittings such as sliding doors, folding doors or movable partitions, the left and right rollers supported by one roller shaft rotate along a linear hanger rail. Therefore, we focused on the fact that it does not need to rotate independently. Then, a structure is studied in which the roller shaft is supported by one rolling bearing provided in the center of the runner body in the left-right direction, and the left and right rollers are fixed to the inner ring of the rolling bearing and integrated to complete the present invention. I arrived.

That is, the gist of the present invention is as follows.
[1] A runner body having roller shafts attached to the front and rear to support a pair of left and right rollers engaged with the hanger rail, and a hanger shaft supported by the runner body and hanging between the front and rear roller shafts. It is a hanger including
The outer ring of the rolling bearing, which is arranged one by one in the center of the front and rear in the left-right direction of the runner body corresponding to the front and rear roller shafts, is supported by the runner body.
The roller shaft is used as a rivet, and the roller shaft is used as a rivet.
The pair of left and right rollers are provided with a cylindrical step portion coaxial with the rotation axis of the rollers.
The inner surface of the roller to which the cylindrical step is connected in the left-right direction is brought into contact with the side surface of the inner ring of the rolling bearing, and the cylindrical surface of the cylindrical step is fitted in the inner ring.
The suspension wheel is characterized in that the pair of left and right rollers and the inner ring are fixed by inserting or fitting the rivet into a through hole at the center portion in the radial direction of the pair of left and right rollers and crimping the shaft end. ..

[2] A runner body having roller shafts attached to the front and rear to support a pair of left and right rollers engaged with the hanger rail, and a hanger shaft supported by the runner body and hanging between the front and rear roller shafts. It is a hanger including
The outer ring of the rolling bearing, which is arranged one by one in the center of the front and rear in the left-right direction of the runner body corresponding to the front and rear roller shafts, is supported by the runner body.
The roller shaft is used as a rivet, and the roller shaft is used as a rivet.
In a state where the inner surface of the pair of left and right rollers in the left-right direction is in contact with the side surface of the inner ring of the rolling bearing.
The rivet is fitted into a through hole in the radial center of one of the pair of left and right rollers, an inner ring of the rolling bearing, and a through hole in the other radial center of the pair of left and right rollers to add a shaft end. A suspension wheel characterized in that the pair of left and right rollers and the inner ring are fixed by tightening.

[3] A runner body having roller shafts attached to the front and rear to support a pair of left and right rollers engaged with the hanger rail, and a hanger shaft supported by the runner body and hanging between the front and rear roller shafts. It is a hanger including
The outer ring of the rolling bearing, which is arranged one by one in the center of the front and rear in the left-right direction of the runner body corresponding to the front and rear roller shafts, is supported by the runner body.
The roller shaft is composed of a pair of left and right cylindrical bodies and rivets inserted through the tubular bodies.
The pair of left and right cylindrical bodies are provided with a cylindrical step portion coaxial with the rotation axis of the roller.
The left-right inner surface of the tubular body to which the cylindrical step is connected is brought into contact with the side surface of the inner ring of the rolling bearing, and the cylindrical surface of the cylindrical step is fitted in the inner ring.
The rivet is inserted into the pair of left and right cylindrical bodies and the shaft ends are crimped to fix the pair of left and right rollers, the pair of left and right tubular bodies, and the inner ring. Hanging wheel.

[4] A runner body having roller shafts attached to the front and rear to support a pair of left and right rollers engaged with the hanger rail, and a hanger shaft supported by the runner body and hanging between the front and rear roller shafts. It is a hanger including
The outer ring of the rolling bearing, which is arranged one by one in the center of the front and rear in the left-right direction of the runner body corresponding to the front and rear roller shafts, is supported by the runner body.
The roller shaft is composed of a first cylindrical body, a second tubular body that is fitted onto the first tubular body, and a rivet that is inserted into the first tubular body.
The first tubular body is provided with a cylindrical step portion coaxial with the rotation axis of the roller.
The second tubular body is fitted onto the cylindrical surface of the cylindrical step portion and is fitted onto the cylindrical surface.
The left-right inner surface of the first cylindrical body connected to the cylindrical step portion and the left-right inner surface of the second tubular body are brought into contact with the side surface of the inner ring of the rolling bearing, and the cylindrical step portion is formed. With the cylindrical surface fitted inside the inner ring,
By inserting the rivet into the first cylindrical body and crimping the shaft end, the pair of left and right rollers, the first tubular body and the second tubular body, and the inner ring are fixed. A hanging car characterized by that.

According to the suspension vehicle of the present invention having the above configuration, in a suspension vehicle having a four-wheel configuration, it is sufficient to provide two rolling bearings in the front-rear direction at the center of the runner body in the left-right direction, as compared with a suspension vehicle having four rolling bearings. Manufacturing costs can be reduced.

Moreover, due to the structure of the suspension wheel, the pair of left and right rollers do not come into contact with the runner body, the backlash can be suppressed to a small extent, and the concentricity of the pair of left and right rollers can be increased.
Therefore, while the rolling element of the rolling bearing rolls between the outer ring and the inner ring, the left and right rollers integrated with the inner ring rotate lightly. Operation becomes possible.

Furthermore, in the structure of the suspension wheel, the left and right rollers are fixed to the inner ring of the rolling bearing via the roller shaft, so that the inner ring becomes a rolling wheel.
Therefore, compared to the conventional structure in which the outer ring is a rolling wheel and the rolling bearing is arranged on each roller, the number of rotations of the rolling element when the suspension vehicle travels the same distance is reduced, so that the life of the rolling bearing can be extended. can.

It is a perspective view of the suspension wheel which concerns on Embodiment 1 of this invention. FIG. 1 is a cross-sectional view taken along the line X1-X1 of FIG. FIG. 2 is a cross-sectional view taken along the line X2-X2 of FIG. It is an exploded perspective view of the suspension wheel which concerns on Embodiment 1 of this invention. It is a partial sectional front view which shows the example which used the suspension wheel which concerns on Embodiment 1 of this invention for a folding door. It is also a partial cross-sectional perspective view. It is a partial cross-sectional perspective view which shows the suspension wheel and the hanger rail which concerns on Embodiment 1 of this invention. It is sectional drawing of the suspension wheel which concerns on Embodiment 2 of this invention corresponding to the cross section of arrow X1-X1 of FIG. It is sectional drawing of the suspension wheel which concerns on Embodiment 3 of this invention corresponding to the cross section of arrow X1-X1 of FIG. It is sectional drawing of the suspension wheel which concerns on Embodiment 4 of this invention corresponding to the cross section of arrow X1-X1 of FIG.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
In the present specification, the direction in which the runner body 2 of the suspension vehicle 1 travels along the hanger rail HR is the front-rear direction, the horizontal direction orthogonal to the front-rear direction is the left-right direction, and the view (FIG. 5) seen from the left is the front. It is shown as a figure.

<Embodiment 1>
As shown in the perspective view of FIG. 1 and FIG. 2 which is a cross-sectional view of the arrow X1-X1 of FIG. 1 and FIG. 3 which is a cross-sectional view of the arrow X2-X2 of FIG. 1, according to the first embodiment of the present invention. The suspension wheel 1 has a four-wheel structure, and includes a runner main body 2 and a hanger shaft 3 supported by the runner main body 2.
The runner main body 2 includes front and rear roller shafts 5 supported by the runner main body 2 via rolling bearings 6 that support a pair of left and right rollers 4 and 4.
The hanger shaft 3 is located between the front and rear roller shafts 5 and 5 and hangs down.

As for the material of the main components of the suspension wheel 1, for example, the runner body 2 and the roller 4 are made of synthetic resin, and the hanger shaft 3 and the roller shaft 5, and the inner and outer rings 6A and 6B and the rolling element 6C of the rolling bearing 6 are made of metal. Is.

As shown in the partial cross-sectional front view of FIG. 5, and the partial cross-sectional perspective views of FIGS. 6 and 7, the front, rear, left and right rollers 4, 4, ... Are engaged with the hanger rail HR, and the suspension wheel 1 is attached to the hanger rail HR. Move only in the front-back direction along.
In the folding door FD using the suspension wheel 1 shown in FIGS. 5 and 6, the guide shaft G of the folding door FD engages in the groove of the rail R located below in parallel with the hanger rail HR.

As shown in FIG. 2 which is a cross-sectional view taken along the line X1-X1 of FIG. 1 and an exploded perspective view of FIG. Correspondingly, the outer ring 6A of the rolling bearing 6 arranged one by one in the center in the left-right direction in the front-rear direction of the runner main body 2 is supported.
The pair of left and right rollers 4 have a first cylindrical step portion 11 coaxial with the rotation axis of the roller 4, a second cylindrical step portion 12, and a third cylindrical step portion 13.

The method of assembling the suspension wheel 1 will be described with reference to FIG. 2, which is a cross-sectional view of the arrow X1-X1 of FIG. 1, FIG. 3, which is a cross-sectional view of the arrow X2-X2 of FIG. 1, and an exploded perspective view of FIG. do.
Rolling bearings 6 and 6 are fitted into the outer ring support holes 2b and 2b on the front and rear of the split body 2B of the runner main body 2.
The split body 2A is inserted so that the pin 14 is inserted into the through hole 3a in the left-right direction of the hanger shaft 3 and both ends of the pin 14 are inserted into the pin support holes 2e and 2e of the left and right split bodies 2A and 2B of the runner body 2. , 2B are brought closer, and the elastic locking pieces 2f and 2f before and after the split body 2A are engaged with the engagement holes 2g and 2g before and after the split body 2B.

In this state, as shown in FIG. 2, the outer ring 6A of the rolling bearing 6 is located in the outer ring support holes 2a and 2b of the divided bodies 2A and 2B, and the rolling bearing 6 is radially and with respect to the runner main body 2. Positioned in the axial direction (left-right direction).
Further, as shown in FIG. 3, since the hanger shaft 3 enters the hanger shaft support holes 2c and 2d of the divided bodies 2A and 2B, the hanger shaft 3 hangs down while being fixed to the runner main body 2.

As shown in FIG. 2, as shown in FIG. 4, the rollers B1 and B1 of the third cylindrical step portions 13 and 13 of the left and right rollers 4 and 4 are fitted in the inner ring 6B of the bearing 6. The rivet 7 which is the shaft 5 is inserted or fitted into the through hole 4a at the radial center portion of one roller 4, and then inserted or fitted into the through hole 4a at the radial center portion of the other roller 4. The shaft end of the rivet 7 is crimped in this way.
Then, the parker screw 15, ... Is inserted into the through hole 2h, ... Of the split body 2A of the runner body 2 and screwed into the pilot hole 2i, ... of the split body 2B of the runner body 2, thereby fixing the split body 2A, 2B. do.

In this state, the left and right inner surfaces A1 and A1 of the rollers 4 and 4 to which the left and right third cylindrical step portions 13 and 13 fitted in the inner ring 6B of the bearing 6 are connected sandwich the inner ring 6B of the bearing 6 with the inner ring 6B. The pair of left and right rollers 4 and 4 are fixed to the inner ring 6B.

<Embodiment 2>
In the suspension wheel 1 according to the second embodiment of the present invention shown in the cross-sectional view of FIG. 8 corresponding to the cross section of the arrow X1-X1 of FIG. 1, the same reference numerals as those of the first embodiment indicate the same or corresponding parts or parts. ing.

Compared with the roller 4 of FIG. 2 of the first embodiment, the roller 4 of FIG. 8 of the second embodiment does not have the third cylindrical step portion 13, and the diameter of the through hole 4a of the roller 4 is the inner ring of the rolling bearing 6. The outer diameter of the rivet 7 which is the roller shaft 5 is large, which is equal to the inner diameter of 6B.

In the second embodiment, the rivet 7 which is the roller shaft 5 is attached to one of the rollers 4 in a state where the inner surfaces A2 and A2 in the left-right direction of the pair of left and right rollers 4 and 4 are in contact with the side surface of the inner ring 6B of the rolling bearing 6. It is fitted into the through hole 4a in the radial center portion of the above, the inner ring 6B of the rolling bearing 6, and the through hole 4a in the radial center portion of the other roller 4, and the shaft end is crimped.

In this state, the left and right inner surfaces A2 and A2 of the rollers 4 and 4 are in contact with the left and right of the inner ring 6B so as to sandwich the inner ring 6B of the bearing 6, and the pair of left and right rollers 4 and 4 are fixed to the inner ring 6B. To.

<Embodiment 3>
In the suspension wheel 1 according to the third embodiment of the present invention shown in the cross-sectional view of FIG. 9, which corresponds to the cross section of the arrow X1-X1 of FIG. 1, the same reference numerals as those of the first embodiment indicate the same or corresponding parts or parts. ing.

Compared with the roller 4 of FIG. 2 of the first embodiment, the roller 4 of FIG. 9 of the third embodiment does not have the second cylindrical step portion 12 and the third cylindrical step portion 13, and the first cylindrical step portion is absent. Only 11 is provided, and the diameter of the through hole 4a of the roller 4 is increased.
The roller shaft 5 is composed of a pair of left and right cylindrical bodies 8 and 8 and a rivet 7 inserted into the tubular bodies 8 and 8, and the tubular bodies 8 and 8 are formed with a rotation shaft of the roller 4. Coaxial cylindrical step portions 8A and 8A are provided. The tubular bodies 8 and 8 are made of metal.

The cylindrical body 8 is fitted into the through hole 4a of the roller 4, and the cylindrical surfaces B3 and B3 of the left and right tubular bodies 8 and 8 are internally fitted into the inner ring 6B of the bearing 6, and the rivet 7 is fitted into one of the tubular bodies. It is inserted into the through hole 8a in the radial center portion of 8 and then inserted into the through hole 8a in the radial center portion of the other cylindrical body 8, and the shaft end of the rivet 7 is crimped.

In this state, the left and right inner rings A3 and A3 of the tubular bodies 8 and 8 to which the left and right cylindrical surfaces B3 and B3 fitted in the inner ring 6B of the bearing 6 are connected sandwich the inner ring 6B of the bearing 6 to the left and right of the inner ring 6B. The pair of left and right rollers 4 and 4 and the pair of left and right tubular bodies 8 and 8 are fixed to the inner ring 6B.

<Embodiment 4>
In the suspension wheel 1 according to the fourth embodiment of the present invention shown in the cross-sectional view of FIG. 10 corresponding to the cross section of the arrow X1-X1 of FIG. 1, the same reference numerals as those of the first embodiment indicate the same or corresponding parts or parts. ing.

The roller 4 of FIG. 10 of the fourth embodiment is the same as that of the third embodiment, and the second cylindrical step portion 12 and the third cylindrical step portion 13 are compared with the roller 4 of the second embodiment of the first embodiment. Only the first cylindrical step portion 11 is provided, and the diameter of the through hole 4a of the roller 4 is increased.
The roller shaft 5 is composed of a first cylindrical body 9, a second tubular body 10 that is externally fitted to the first tubular body 9, and a rivet 7 that is inserted into the first tubular body 9. The first tubular body 9 is provided with a cylindrical step portion 9A coaxial with the rotation axis of the roller 4. The first cylindrical body 9 and the second tubular body 10 are made of metal.

The first tubular body 9 is fitted into the through hole 4a of one roller 4, the second tubular body 10 is fitted into the through hole 4a of the other roller 4, and the cylindrical surface B4 of the first tubular body 9 is bearing. The rivet 7 is inserted into the through hole 9a in the radial center of the first tubular body 9 with the second tubular body 10 fitted in the inner ring 6B of 6 and the second tubular body 10 is outerly fitted in the cylindrical surface B4, and the rivet 7 is inserted. Tighten the shaft end of.

In this state, the left-right inner surface A4 of the first tubular body 9 connected to the cylindrical surface B4 internally fitted to the inner ring 6B of the bearing 6 and the second tubular body externally fitted to the cylindrical surface B4 of the first tubular body 9. The inner surface A5 in the left-right direction of the 10 is in contact with the left and right sides of the inner ring 6B so as to sandwich the inner ring 6B of the bearing 6, and the pair of left and right rollers 4 and 4, and the first cylindrical body 9 and the second tubular body 10 are formed. , Fixed to the inner ring 6B.

According to the suspension vehicle according to the embodiment of the present invention as described above, in the suspension vehicle having a four-wheel configuration, two rolling bearings may be provided in the front-rear direction at the center of the runner body in the left-right direction. The manufacturing cost can be reduced compared to the equipped suspension wheel.

Moreover, according to the structure of the suspension wheel according to the embodiment of the present invention, the pair of left and right rollers do not come into contact with the runner body, the backlash can be suppressed to a small extent, and the concentricity of the pair of left and right rollers can be increased. can.
Therefore, while the rolling element of the rolling bearing rolls between the outer ring and the inner ring, the left and right rollers integrated with the inner ring rotate lightly. Operation becomes possible.

Further, in the structure of the suspension wheel according to the embodiment of the present invention, since the left and right rollers are fixed to the inner ring of the rolling bearing via the roller shaft, the inner ring becomes a rolling wheel.
Therefore, compared to the conventional structure in which the outer ring is a rolling wheel and the rolling bearing is arranged on each roller, the number of rotations of the rolling element when the suspension vehicle travels the same distance is reduced, so that the life of the rolling bearing can be extended. can.

The description of the above embodiments are all examples and are not limited thereto. Various improvements and changes can be made without departing from the scope of the present invention.

1 Suspension wheel 2 Runner body 2A, 2B Split body 2a, 2b Outer ring support hole 2c, 2d Hanger shaft support hole 2e Pin support hole 2f Elastic locking piece 2g Engagement hole 2h Through hole 2i Pilot hole 3 Hanger shaft 3a Through hole 4 Roller 4a Through hole 5 Roller shaft 6 Rolling bearing 6A Outer ring 6B Inner ring 6C Rolling body 7 Rivet 8 Cylindrical body 8A Cylindrical step 8a Through hole 9 First tubular body 9A Cylindrical step 9a Through hole 10 Second tubular body 11 1st Cylindrical Step 12 2nd Cylindrical Step 13 3rd Cylindrical Step 14 Pin 15 Tappin Screw A1, A2, A3, A4, A5 Left / Right Inner Surface B1, B3, B4 Cylindrical Surface FD Folding Door G Guide Axis HR hanger rail R rail

Claims (3)

A hanger wheel including a runner body in which a roller shaft supporting a pair of left and right rollers engaged with the hanger rail is attached to the front and rear, and a hanger shaft supported by the runner body and hanging between the front and rear roller shafts. And,
The outer ring of the rolling bearing, which is arranged one by one in the center of the front and rear in the left-right direction of the runner body corresponding to the front and rear roller shafts, is supported by the runner body.
The roller shaft is used as a rivet, and the roller shaft is used as a rivet.
The pair of left and right rollers are provided with a cylindrical step portion coaxial with the rotation axis of the rollers.
The inner surface of the roller to which the cylindrical step is connected in the left-right direction is brought into contact with the side surface of the inner ring of the rolling bearing, and the cylindrical surface of the cylindrical step is fitted in the inner ring.
The suspension wheel is characterized in that the pair of left and right rollers and the inner ring are fixed by inserting or fitting the rivet into a through hole at the center portion in the radial direction of the pair of left and right rollers and crimping the shaft end. .. A hanger wheel including a runner body in which a roller shaft supporting a pair of left and right rollers engaged with the hanger rail is attached to the front and rear, and a hanger shaft supported by the runner body and hanging between the front and rear roller shafts. And,
The outer ring of the rolling bearing, which is arranged one by one in the center of the front and rear in the left-right direction of the runner body corresponding to the front and rear roller shafts, is supported by the runner body.
The roller shaft is composed of a pair of left and right cylindrical bodies and rivets inserted through the tubular bodies.
The pair of left and right cylindrical bodies are provided with a cylindrical step portion coaxial with the rotation axis of the roller.
The left-right inner surface of the tubular body to which the cylindrical step is connected is brought into contact with the side surface of the inner ring of the rolling bearing, and the cylindrical surface of the cylindrical step is fitted in the inner ring.
The rivet is inserted into the pair of left and right cylindrical bodies and the shaft ends are crimped to fix the pair of left and right rollers, the pair of left and right tubular bodies, and the inner ring. Hanging wheel. A hanger wheel including a runner body in which a roller shaft supporting a pair of left and right rollers engaged with the hanger rail is attached to the front and rear, and a hanger shaft supported by the runner body and hanging between the front and rear roller shafts. And,
The outer ring of the rolling bearing, which is arranged one by one in the center of the front and rear in the left-right direction of the runner body corresponding to the front and rear roller shafts, is supported by the runner body.
The roller shaft is composed of a first cylindrical body, a second tubular body that is fitted onto the first tubular body, and a rivet that is inserted into the first tubular body.
The first tubular body is provided with a cylindrical step portion coaxial with the rotation axis of the roller.
The second tubular body is fitted onto the cylindrical surface of the cylindrical step portion and is fitted onto the cylindrical surface.
The left-right inner surface of the first cylindrical body connected to the cylindrical step portion and the left-right inner surface of the second tubular body are brought into contact with the side surface of the inner ring of the rolling bearing, and the cylindrical step portion is formed. With the cylindrical surface fitted inside the inner ring,
By inserting the rivet into the first cylindrical body and crimping the shaft end, the pair of left and right rollers, the first tubular body and the second tubular body, and the inner ring are fixed. A hanging car characterized by that.

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