JPH0645801U - Transport castors - Google Patents

Abstract

(57) [Summary] [Purpose] Allowing the user to freely move up and down due to unevenness, undulations, etc. on the running surface so that the running surface runs smoothly, and it is possible to easily, easily and safely carry even a considerably heavy transported object. . [Structure] A caster base 1 provided with a turntable 6 on which a transported object W is mounted, and the caster base 1
The wheel mechanism 10 attached to the lower surface is provided. Wheel mechanism 1
0 has a plurality of wheels 13 arranged along the front and rear,
It is composed of left and right front wheel portions 11 that can swing in the front-rear direction, and left and right rear wheel portions 15 that support an appropriate number of wheels 16.
Further, the front wheel portion 11 swingably supports a substantially central portion of a swing plate 14 which supports wheels 13 in the front-rear direction, on a swing shaft 12 which is horizontally provided between left and right side wall front portions of the caster base 1. Configure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is mainly used for loading and unloading and installing various heavy-weight items such as large transformers, large machine tools, and air conditioners, and also for carrying various objects to be transported in other various factories and construction sites. The present invention relates to a transport caster used for.

[0002]

[Prior art]

 Conventionally, to carry various heavy goods, a dolly with traveling wheels attached to the underside of the pedestal is used, and various heavy goods are placed on the pedestal and moved together with the dolly. At this time, for example, a turntable is attached to the upper surface of the base to change the direction of various objects to be transported that are heavy objects or change the traveling direction of the base itself, and to move while matching the transportation direction. There is.

[0003]

[Problems to be solved by the device]

 However, for example, various factories that carry in and out various types of objects to be transported, such as large transformers, large machine tools, and air conditioners, and the running surface on which the bogies are moved at construction sites have uneven surfaces. If there are or there are steps, the traveling wheels may not rotate smoothly and may stop at these positions. This is because even if the traveling wheel can change direction with respect to the traveling direction, it is not set so that the elevation angle can be adjusted arbitrarily, and the bearing portion of the wheel has a rigid structure. This is because it does not follow ups and downs of the running surface, and in particular, even if there is a slight step or unevenness, it cannot stop over them and stops.

That is, for example, when a wheel is fitted into a concave portion such as a dent, the load of the object to be conveyed is concentrated on the wheel, which makes it extremely difficult to escape from the wheel, and, for example, the wheel is projected onto the floor. If the wheels get caught in the existing wiring members, etc., they cannot get over them, making it impossible to move forward in the transport direction. In such a case, even if you try to escape from it by lifting the stopped wheel part, you have to lift it with the object to be transported that has a considerable weight, so it is not only difficult, but the trolley. In some cases, when the whole was tilted, the transported object slipped on the platform, which was dangerous.

Therefore, the present invention has been devised in view of various existing circumstances as described above, in which the wheel mechanism is freely lowered and raised in accordance with the unevenness of the running surface, undulations, etc. A transport caster that rolls smoothly at an elevation angle that conforms to the shape of the object so that it can travel smoothly and can easily, easily, and safely carry even heavy objects. The purpose is to provide.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention comprises a caster base 1 on which an object W to be transported is placed, and a wheel mechanism 10 attached to the lower surface of the caster base 1. , Having a plurality of wheels 13 arranged along the front-rear direction, and consisting of left and right front wheel parts 11 that can swing in the front-rear direction, and left and right rear wheel parts 15 supporting an appropriate number of wheels 16. Characterize.

The front wheel portion 11 of the wheel mechanism 10 oscillates substantially at the center of a oscillating plate 14 which supports wheels 13 back and forth on a oscillating shaft 12 which is laid horizontally between the left and right side wall front parts of the caster base 1. It can be movably supported and configured.

A turntable 6 can be attached to the caster base 1.

[0009]

[Action]

 In the caster for transportation according to the present invention, the caster base 1 on which various kinds of suitable transported objects W to be transported are placed is a wheel mechanism 10 having wheels 13 and 16 rolling on the transport surface. The transported object W is transported by traveling.

At this time, the front wheel portion 11 of the wheel mechanism 10 is rocked and tilted forward and backward by the rocking plate 14 rocking around the rocking shaft 12 with respect to the caster base 1 at a free elevation angle. The wheels 13 are moved up and down. The vertical movement of the wheel 13 causes the front wheel portion 11 itself to tilt freely so as to roll freely along the undulating surface when there is undulation or unevenness on the transportation surface. The wheels 13 are rotated by forming a rolling surface that follows the surface, and the caster base 1 itself travels smoothly.

The turntable 6 attached to the caster base 1 makes it possible to perform relative position conversion in the transport direction between the transported object W placed on the caster base 1 and the caster base 1 itself.

[0012]

【Example】

 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 shown in the drawings, for example, is a caster base provided with a wheel mechanism 10 on which various kinds of objects W to be transferred are placed and transported. In addition, a turntable 6 is provided on the upper side surface of the turntable 6 for turning the placed object W in the direction or changing the turning direction of the object.

The caster base 1 itself has a substantially flat gate shape in a cross section in which the side walls are vertically erected on the left and right of an upper side wall having a wall thickness sufficient to withstand the load of the transferred object W to be placed and conveyed. And has a central reinforcing beam portion 2 along the front-rear direction. At the front of the caster base 1, a tow bar 4 for towing or the like is horizontally provided between the left and right connecting arm portions 3 projecting forward of the front edge, and at the rear, the transported object W or the like is conveyed. A connecting portion 5 having a hole for binding and fixing is formed in a protruding manner. The caster base 1 can be made lightweight by using aluminum as its material, and can be easily handled.

The turntable 6 is rotatably attached to the upper surface of the upper wall of the caster base 1 through a shaft supporting portion 7 formed in the center of the upper wall of the caster base 1. It is designed to be rotated over.

Further, the wheel mechanism 10 has a plurality of wheels 13 arranged along the front and rear, and has left and right front wheel portions 11 that can swing in the front and rear directions and left and right wheels that support an appropriate number of wheels 16. The rear wheel portion 15 is formed, and each of the wheels 13 and 16 is formed in a roller shape that is long in the left-right direction.

The front wheel portion 11 swingably supports a substantially central portion of a swing plate 14 which supports wheels 13 in the front-rear direction, on a swing shaft 12 horizontally extending between left and right side wall front portions of the caster base 1. The central reinforcing beam portion 2 is separately provided on both sides of the central reinforcing beam portion 2. The rocking shaft 12 itself is fixed or penetrated between the left and right side walls of the caster base 1 by inserting the central reinforcing beam portion 2 through the rocking shaft 12. The front wheel portion 11 itself is swung in the front-back direction of the caster base 1. The rocker 14 has an elliptical shape that is elongated in the front-rear direction of the caster base 1, and the wheels 13 are rotatably supported by axles that are horizontally mounted at the front and rear ends of the rocker 14 so that the rocker 14 itself. The front and rear wheels 13 are alternately moved up and down by the rocking.

On the other hand, the rear wheel portion 15 is a wheel which is rotatably positioned on both sides of the central reinforcing beam portion 2 on an axle which is inserted through the central reinforcing beam portion 2 and is laterally crossed between the left and right side walls. It is supported by 16.

Next, as an example of the use of this, various kinds of suitable transported objects W to be transported are placed on the turntable 6 and transported by rolling traveling of the wheel mechanism 10. At this time, if there is some unevenness on the carrying surface, the front wheel portion 11 of the wheel mechanism 10 raises the caster base 1 so as to correspond to the unevenness on the carrying surface to the front and rear in the traveling direction. It swings and rolls smoothly on the transport surface.

Further, the turning in the carrying direction is performed by the rotation of the turntable 6, and the carried object W is turned without changing the direction of the caster base 1, or the caster is not changed in the direction of the carried object W. The base 1 itself is forcibly turned around to change its carrying direction.

It should be noted that in order to convey the object W to be conveyed by using the caster of the present invention, one piece may be used, but a plurality of pieces may be combined by, for example, disposing each of the four corners on the bottom surface of the object W to be conveyed. It does not matter which one is used, and it can be appropriately selected depending on the size, weight, and the like of the transported object W.

In the use of the caster of the present invention, the case where the front wheel portion 11 of the wheel mechanism 10 is positioned forward has been described, but the rear wheel portion 15 can also be positioned forward when used.

[0022]

[Effect of device]

 The present invention is configured as described above, and therefore, the wheel mechanism 10 is freely adjusted in elevation depending on the unevenness of the running surface, undulations, etc., and rolls at an elevation angle according to the running surface shape. Even if the object W to be conveyed has a considerable weight, the object W can be easily, easily and safely carried on the running surface.

That is, in this invention, this is provided with a caster base 1 and a wheel mechanism 10, and the wheel mechanism 10 has a plurality of wheels 13 arranged along the front-rear direction and can swing in the front-rear direction. This is because the left and right front wheel portions 11 and the left and right rear wheel portions 15 supporting a proper number of wheels 16 are supported, and the rolling surface that follows the undulating surface is formed by the elevation of the front wheel portion 11 itself. This is because the wheel 13 is formed and the wheel 13 is rotated. Due to the upward and downward swinging action of the front wheel portion 11, even the rear wheel portion 15 that does not swing smoothly follows the front wheel portion 11 to support the weight of the transported object W and stabilize the caster base 1 itself. Allow running.

Further, the front wheel portion 11 of the wheel mechanism 10 is substantially centered on a rocking plate 14 in which wheels 13 are supported in the front and rear directions on a rocking shaft 12 horizontally extending between left and right side wall front parts of the caster base 1. Since the portion is swingably supported, it is overcome by a tight elevation action against the protrusion or recess of the traveling surface, and the caster base 1 on which the object W that is heavy in weight is placed can smoothly travel. be able to.

Further, since the turntable 6 attached to the caster base 1 rotates relative to the caster base 1, the transferred object W placed on the caster base 1 is free to move in the transfer direction. It can be turned in any direction and its transport direction can be changed.

[Brief description of drawings]

FIG. 1 is a side sectional view.

FIG. 2 is a partially cutaway plan view.

FIG. 3 is a perspective view.

[Explanation of symbols]

W Transported object 1 Caster base 2 Central reinforcing beam part 3 Connecting arm part 4 Traction rod 5 Connecting part 6 Turntable 7 Shaft support part 10 Wheel mechanism 11 Front wheel part 12 Swing shaft 13 Wheel 14 Swing plate 15 Rear wheel part 16 Wheel

Claims (3)

[Scope of utility model registration request] 1. A caster base on which an object to be transported is mounted, and a wheel mechanism attached to the lower surface of the caster base, the wheel mechanism having a plurality of wheels arranged along the front and rear, A transport caster comprising left and right front wheel portions that can swing in any direction, and left and right rear wheel portions that support an appropriate number of wheels. 2. The front wheel portion of the wheel mechanism is swingably supported on a swing shaft extending laterally between the left and right side wall front portions of the caster base, about the center of a swing plate having wheels supported in the front and rear directions. The transport caster according to claim 1, wherein 3. The transport caster according to claim 1, wherein a turntable is attached to the caster base.