JPH075988Y2 - Rotary table - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial field of application]
The present invention relates to a rotary table that is used for manually processing or assembling various parts, or puts various items such as potted plants and bonsai pruning and rotates them at an arbitrary angle.

[0002]

2. Description of the Related Art A table on which various items are placed and rotated is known. For example, a table that is supported by a shaft provided on the substrate to support the center of the table and allows the table to rotate, or a large number of rollers and wheels are mounted around the table, and the rollers and wheels are arranged along a circular rail on the substrate. There are things that rotate the table by rolling.

[0003]

Since the conventional rotary table as described above supports only the central portion or the outer peripheral portion of the table, when the rigidity of the table is insufficient, the heavy article is heavy. The table will be deformed when you place the.

For this reason, if the table is made of a thick material and does not deform even if a heavy object is placed on it, the weight of the table itself becomes large, and a considerable amount of labor is required when the table is manually rotated. The problem arises.

An object of the present invention is to solve the problems of the conventional rotary table as described above, and to provide a rotary table which is not deformed even when a heavy object is placed thereon and can be easily rotated. is there.

[0006]

In order to solve the above-mentioned problems, the present invention has a rotating ring fitted on the outside of a lower boss fixed to the center of a substrate, and a plurality of shafts are radially arranged on the outer circumference of the rotating ring. , Each roller is mounted rotatably on each shaft, each roller is placed on the substrate, and the upper boss at the center of the lower surface of the separate rotating top plate is rotatable in the rotating ring. The rotary table on which the rotary top plate is mounted on each of the rollers and the rotary top plate is provided with a peripheral wall concentric with the center of rotation, and a large number of engaging holes are provided in the peripheral wall. A part of the above-mentioned engaging holes is provided with a stopper which can be engaged and disengaged.

[0007]

Since the rotary table of the present invention has the above-mentioned structure, when a desired product is placed on the rotary top plate and the top plate is rotated with the stopper removed from the engaging hole of the peripheral wall of the top plate, the top plate is rotated. While rolling a number of rollers under it on the substrate, it lightly rotates around the lower boss and rotating ring. In this way, the top plate is stopped when the articles on the top plate have the desired orientation, and the stopper is engaged with the engaging hole to prevent the top plate from rotating.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in the drawings, 1 is a substrate made of a steel plate or the like, and 2 is a hollow lower boss fixed on the center by means such as welding or screwing. Reference numeral 3 denotes a rotating ring which is rotatably fitted to the outer side of the lower boss 2 with an appropriate gap, and a plurality of (six in FIG. 2) shafts 4 are screwed to the outer side of the lower boss 2 for horizontal rotation. , And radially fixed at an angle of 60 °.

Numeral 5 is a roller rotatably mounted on each shaft 4. In the embodiment, there are three rollers on each shaft 4, and these rollers are mounted at regular intervals. That is, as shown in FIG. 3, the shaft 4 of each roller mounting portion is provided with a pair of circumferential grooves 6 for each roller.
The roller 5 is fitted on the shaft 4 between them with sufficient play. Then, the washer 7 is fitted to the shaft 4 so as to be positioned on both sides of the roller 5, and the stop ring 9 such as an E ring is fitted to the outer circumferential groove 6 so that the roller 5 does not move in the axial direction beyond a certain range. To

Reference numeral 11 denotes a disk-shaped rotary top plate made of a steel plate or the like, and a hollow upper boss 12 as shown in FIG.
Is fixed by means such as screwing or welding. A screw hole 13 is provided in the lower portion of the upper boss 12, and the central connecting shaft 14
A male screw 15 to be screwed into the screw hole 13 is provided at the upper end of the.

The outer diameter of the connecting shaft 14 is smaller than the inner diameter of the screw hole 13, and when the male screw 15 penetrates the screw hole 13, the connecting shaft 14 is loosely fitted in the screw hole 13.

At the upper end of the lower boss 2, an opening 17 having a diameter larger than the outer diameter of the male screw 15 and smaller than the head 16 at the lower end of the connecting shaft 14 is provided. Further, an opening 19 for passing the head portion 16 is provided in the center of the substrate 1. With this structure, the substrate 1 and the top plate 11 are connected, and when the male screw 15 is pulled out from the screw hole 13, the substrate 1 and the top plate 11 are separated.

Reference numeral 20 denotes a downward peripheral wall integrally provided on the outer periphery of the rotary top plate 11, which is concentric with the center of rotation of the top plate 11 and has a large number of engaging holes 21 formed at regular intervals. Two
Reference numeral 2 is a stopper that is engaged with and disengaged from the engagement hole 21. The stopper 22 is attached to a case 23 fixed on the substrate 1 so as to be movable back and forth.

As shown in detail in FIG. 4, the stopper 22 has its large-diameter portion 24 mounted in a case 23 so as to be movable back and forth, and is pushed forward by a spring 25, that is, in the direction of engaging with the engaging hole 21. There is. The small-diameter shaft portion 26 provided at the rear portion of the large-diameter portion 24 is projected outward from the hole at the rear portion of the case 23, and the knob 27 is fixed to the tip thereof.

Further, as shown in FIG. 5, a set screw 29 is screwed into a screw hole provided in a part of the case 23, and a stop pin 30 at the inner end thereof is provided in the large diameter portion 24 as shown in FIG. Three
1 to limit the protrusion amount of the stopper 22.

Explaining the operation of the above embodiment, a desired product is placed on the rotary top plate 11, the knob 27 is pulled to retract the stopper 22 against the spring 25, and the stopper 22 is pulled out from the engaging hole 21. Pull out.

Next, the rotary top plate 11 is rotated to orient the article on it. When the item is in the desired orientation,
Release the knob 27 and move the stopper 22 to the nearest engaging hole 21.
Engage with.

In the above state, the stopper 22 engages with the engaging hole 21 by the force of the spring 25 to prevent the top plate 11 from rotating, so that the product is stable.

[0019]

[Effect] This invention is one in which an item is placed on a rotating top plate and freely rotated as described above.
A rotating ring is attached to the outside of the lower boss on the board, a plurality of rollers mounted on a plurality of shafts on the outer periphery of the rotating ring are placed on the board, and an upper boss at the center of the lower surface of a separate rotating top plate is attached to the rotating ring. Since the rotary top plate is rotatably fitted inside and the rotary top plate is placed on each of the rollers, the rotary top plate is supported by a large number of rollers. Therefore, even if a heavy mold, a large potted plant, or a large bonsai tree is placed, there is no possibility that the rotary top plate will be deformed, so that the rotary top plate can be manufactured from a thin and lightweight plate material.

Further, when the rotary top plate rotates, the rollers roll on the substrate, and the top plate and the rollers and the substrate come into rolling contact with each other, so that the rotary disc rotates extremely lightly.

Further, the rotary top plate is provided with a peripheral wall concentric with the center of rotation thereof, a plurality of engaging holes are provided in the peripheral wall, and a stopper which can be engaged with and disengaged from each of the engaging holes is provided in a part of the substrate. By providing the article, the articles placed on the rotary top plate are oriented in a desired direction, and then the rotary top plate is fixed by the stopper, so that assembly and pruning work can be easily performed in a stable state.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a partially transverse plan view of the same as above.

[FIG. 3] Similarly, an enlarged vertical front view of the central portion.

FIG. 4 is an enlarged vertical side view of the stopper portion.

5 is a vertical cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 substrate 2 lower boss 3 rotating ring 4 shaft 5 roller 11 rotating top plate 12 upper boss 20 peripheral wall 21 engaging hole 22 stopper

Claims (2)

[Scope of utility model registration request] 1. A rotating ring is attached to the outside of a lower boss fixed to the center of a substrate, a plurality of shafts are radially fixed to the outer periphery of the rotating ring, and a plurality of rollers are rotatably mounted on the respective shafts. Then, each of the rollers is placed on the substrate, the upper boss at the center of the lower surface of the separate rotating top plate is rotatably fitted in the rotating ring, and the rotary top plate is placed on each of the rollers. table. 2. The rotating top plate is provided with a peripheral wall concentric with the center of rotation thereof, a large number of engaging holes are provided in the peripheral wall, and a part of the substrate is detachably engageable with the engaging holes. Rotary table with stopper.