JPH086565Y2 - Transport castors - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is mainly applied to loading and unloading and installation of various heavy products such as large transformers, large machine tools, and air conditioners, and various other factories and construction sites. The present invention relates to a transport caster used for transporting various objects to be transported.

[0002]

2. Description of the Related Art Conventionally, a carriage having traveling wheels attached to a lower surface of a pedestal has been used for carrying various heavy goods, and the trolley moves along with various heavy goods placed on the pedestal. I will let you. 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, which are heavy objects, or change the traveling direction of the base itself, and move while matching the carrying direction. There is.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, for example, various transformers, large machine tools, various kinds of factories for carrying in and out various objects to be conveyed such as air conditioners, and running surfaces for moving bogies at construction sites. When the traveling surface has irregularities or steps, the traveling wheels may not smoothly rotate and may stop at these positions. This is because even if the traveling wheel is capable of changing direction with respect to the traveling direction, it is not set so that the depression / elevation angle is arbitrarily adjusted, 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 these and stops.

That is, when a wheel fits into a concave portion such as a dent, the load of the object to be conveyed is concentrated on the wheel, making it extremely difficult to escape from the wheel, and protruding onto the floor, for example. If the wheel gets caught in the wiring member that is
It was impossible to overcome it, and it was 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 is considerably heavy, which is not only difficult, but also tilts the entire trolley. In some cases, the transported object may slip on the platform, which may be dangerous.

Therefore, the present invention has been devised in view of various existing circumstances as described above, and the wheel mechanism is freely adjusted to correspond to the unevenness of the running surface, the undulations, and the like. By rolling at an elevation angle that conforms to the shape, you can run smoothly, even if the object is quite heavy, you can easily, easily, safely, and freely change the direction of transfer. It is an object of the present invention to provide a transport caster that can be transported as much as possible.

[0006]

In order to achieve the above-mentioned object, in the present invention, 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. And the wheel mechanism 10 is
Having a plurality of wheels 13 arranged along the front-rear direction, the left and right front wheel portions 11 capable of swinging in the front-rear direction, and an appropriate number of wheels 16
The left and right rear wheel portions 15 that support the

The front wheel portion 11 of the wheel mechanism 10 has a swing shaft 12 extending laterally between the left and right side wall front portions of the caster base 1 and a swing plate 14 which supports wheels 13 in the front and rear directions. Rockably support.

A turntable 6 is attached to the caster base 1.

[0009]

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

At this time, the front wheel portion 11 of the wheel mechanism 10 is
A rocking plate 14 that rocks around a rocking shaft 12 rocks and tilts forward and backward with respect to the caster base 1 at a free elevation angle, and vertically moves the front and rear wheels 13. This wheel 13
The up-and-down movement of the vehicle will cause the front wheel portion 11 itself to tilt up and down so that it can freely roll along the undulating surface if there are undulations or irregularities on the traveling surface. The moving surface is formed and the wheels 13 are rotated so that the caster base 1 itself travels smoothly.

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

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 indicates a wheel mechanism 10 on which, for example, various objects W to be transferred are mounted and which are conveyed and run.
It is a caster base equipped with a
A turntable 6 is provided on the upper side surface for enabling the turning of the direction of the carriage or the change of the turning of the carrying direction.

The caster base 1 itself has a substantially flat gate shape in a cross section in which side walls are vertically provided on the left and right of an upper side wall having a thickness sufficient to withstand the load of an 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 pulling is horizontally mounted between the left and right linking arm portions 3 projecting forward of the front edge, and at the rear, the transported object W, etc. A connecting portion 5 having a hole for binding, fixing, etc. 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 a caster base 1
It is rotatably attached to the upper surface of the upper side wall through a shaft supporting portion 7 formed in the substantially central portion of the upper side wall, and is rotatable with respect to the caster base 1 on a horizontal plane in a free direction.

The wheel mechanism 10 has a plurality of wheels 13 arranged along the front-rear direction, and has left and right front wheel portions 11 swingable in the front-rear direction, and left and right wheels 16 supporting a proper number of wheels 16. The rear wheel portion 15 is formed, and the wheels 13 and 16 are each formed in a roller shape that is long in the left-right direction.

The front wheel portion 11 is swingably supported on a swing shaft 12 extending laterally between the front portions of the left and right side walls of the caster base 1 about the center of a swing plate 14 which supports wheels 13 in the front-rear direction. The central reinforcing beam portion 2 is separately provided on both sides of the central reinforcing beam portion 2. The swing shaft 12 itself is the central reinforcing beam portion 2
The caster base 1 is fixed or penetrated without being pulled out between the left and right side walls of the caster base 1, and the front wheel portion 11 itself swings in the front-back direction of the caster base 1 around the swing shaft 12. Be moved. The rocker 14 has an oval shape that is elongated in the front-rear direction of the caster base 1, and the wheels 13 are formed by the axles that are horizontally mounted at the front and rear ends thereof.
Is rotatably supported, and the front and rear wheels 13 are alternately moved up and down by the swing of the swing plate 14 itself.

On the other hand, the rear wheel portion 15 is a wheel 16 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 laid across between the left and right side walls. Will be supported.

Next, as an example of the use of this, various suitable objects W to be conveyed are placed on the turntable 6 and are conveyed by rolling movement of the wheel mechanism 10. , At this time, if there is some unevenness on the transport surface,
By raising the front wheel portion 11 of the wheel mechanism 10 to the caster base 1, the front wheel portion 11 swings back and forth in the traveling direction so as to conform to the irregularities on the transport surface, and smoothly rolls on the transport surface. .

Further, the turning in the carrying direction is carried out 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 carried without changing the direction of the carried object W. The base 1 itself is forcibly rotated to change the carrying direction.

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

In using 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 it goes without saying that the rear wheel portion 15 can be positioned forward when used.

[0022]

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, and the like, and the elevation angle is adjusted according to the running surface shape. Since it rolls, it smoothly travels on the traveling surface, and even an object W having a considerable weight can be easily, easily and safely transported.

That is, in the present invention, this is provided with the caster base 1 and the wheel mechanism 10, and the wheel mechanism 10
Has a plurality of wheels 13 arranged along the front and rear,
This is because the left and right front wheel portions 11 that can swing in the front-rear direction and the left and right rear wheel portions 15 that support a proper number of wheels 16 are supported. This is because the wheel 13 is rotated by forming the following rolling surface. Due to the upward / 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 the caster base 1
Allows stable running of itself.

The front wheel portion 11 of the wheel mechanism 10 has a swing shaft 12 extending laterally between the left and right side wall front portions of the caster base 1 and a swing disc 14 having wheels 13 supported in the front-rear direction. Since it is swingably supported, it can be overcome by a tight elevation action against the projection or the 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. You can

Further, since the turntable 6 attached to the caster base 1 rotates relative to the caster base 1, the object W placed on the caster base 1 is free to move in the carrying 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 (1)

[Scope of utility model registration request] 1. A caster base provided with a turntable for mounting an object to be conveyed, and a wheel mechanism attached to a lower surface of the caster base, wherein the wheel mechanism has a plurality of wheels arranged along the front and rear. It also has left and right front wheel portions that can swing in the front-rear direction, and left and right rear wheel portions that support an appropriate number of wheels, and the front wheel portion of the wheel mechanism has front and left sidewalls of the caster base. A transport caster characterized in that a swing shaft horizontally supported between the parts supports a swing plate, which supports wheels in the front-rear direction, so as to swing substantially at the center.