TWI625206B - Caster automatic guiding tool cart - Google Patents

Abstract

The caster automatic guiding tool cart of the present invention comprises a body and a caster, the body having a virtual reference plane extending in a horizontal direction, the caster comprising a wheel base and a wheel, the wheel base being centered on a virtual rotating shaft The virtual rotating shaft is rotatably connected to the body, the virtual rotating shaft is not perpendicular to the virtual reference surface, and the wheel is pivotally disposed on the wheel base. The tool cart adopts the above structure, and when the user moves the tool cart in a preset direction, The wheel seat is not prone to yaw, and even if the road surface is not flat, the wheel seat can automatically return to ensure that the tool car can straight forward.

Description

Caster automatic guiding tool cart

The invention mainly discloses a tool cart, in particular a tool cart for automatically guiding a caster.

In the factory where the production or maintenance work is carried out, it is often necessary to use various types and different sizes of tools. In order to accommodate the above tools for the convenience of the operator, a tool cabinet or a tool holder may be provided in the factory, if the operator needs When the carrying tool moves in the factory, the tool cart storage tool is used. The tool cart is mainly composed of a metal skeleton and several casters. The skeleton part can be used to place the tool and the tool cart is made by several casters. It can be moved by the caster, and the caster can swing relative to the skeleton, so that the tool cart can be moved in multiple directions.

However, with the above-structured tool cart, since the casters can swing relative to the skeleton, the casters may be swayed when rolling over uneven road surfaces, and the tool cart cannot advance straight.

In view of the above-described lack of conventional structure, the inventors have devised a caster automatic guiding tool that overcomes all of the above-mentioned disadvantages of the prior art.

The main purpose of the caster automatic guiding tool cart of the present invention is to provide a tool cart including a body and a caster, the body having a virtual reference plane extending in a horizontal direction, the caster including a wheel base and a wheel. The wheel base can be rotatably connected to the body with a virtual rotating shaft as a center, the virtual rotating shaft is not perpendicular to the virtual reference surface, the wheel is pivoted on the wheel base, and the tool cart adopts the above structure, the user When the tool cart is moved in a preset direction, the wheel base is not prone to yaw, and even if the road surface is not flat, the wheel seat can automatically return to the front to ensure that the tool cart can advance straight.

A wheel seat is disposed on a side of the wheel housing adjacent to the body, and the foot seat is fixedly coupled to the body, and the wheel base is pivotally disposed on the foot base about the virtual rotating shaft.

A bottom surface of the body is disposed in a vertical direction, the bottom surface is parallel to the virtual reference surface, and an abutting surface is disposed on a side of the foot adjacent to the body, the abutting surface is perpendicular to the virtual rotating shaft, the abutting surface Abutting against a bottom surface of the body, the caster has a pad disposed between the bottom surface of the body and the abutment surface of the foot such that the bottom surface of the body and the abutment surface of the foot are not adjacent to each other parallel.

The bottom of the body is disposed in a vertical direction, and the bottom surface is not parallel to the virtual reference surface. The side of the foot adjacent to the body is provided with an abutting surface perpendicular to the virtual rotating shaft. The abutting faces directly abut against the bottom surface of the body in parallel with each other.

The bottom of the body is disposed in a vertical direction, and the bottom surface is parallel to the virtual reference surface. The side of the foot adjacent to the body is provided with an abutting surface, the abutting surface is not perpendicular to the virtual rotating shaft. The abutting faces directly abut against the bottom surface of the body in parallel with each other.

A handle is disposed at one end of the body in a horizontal direction, the handle is adjacent to a top of the body in a vertical direction, and the virtual rotating shaft is adjacent to an end of the body adjacent to the top side of the body in a vertical direction, and is different from the end of the body. Moving, the other end of the virtual rotating shaft in the vertical direction is offset from an end of the body where the handle is disposed.

Other objects, advantages and novel features of the invention will become apparent from the description and appended claims.

The technology, the means and the functions of the present invention are described in detail with reference to the accompanying drawings.

1 to 3, a perspective view, an exploded perspective view, and a plan view of a horizontal direction of a first embodiment of a caster automatically guided by a caster according to the present invention. The utility vehicle 10 of the present invention includes a body 20 and a caster 30; wherein:

The body 20 has a virtual reference plane P extending in a horizontal direction, and the virtual reference plane P can be a ground or a plane parallel to the ground. The bottom portion of the body 20 in the vertical direction is provided with a bottom surface 21 which is parallel to the virtual reference plane P in this embodiment.

The body 20 is provided at one end in the horizontal direction with a handle 22 adjacent to the top of the body 20 in the vertical direction.

Please refer to FIG. 4 and FIG. 5 , which are cross-sectional structural views of the caster of the first embodiment of the caster automatic guiding tool of the present invention. The caster 30 includes a wheel base 31 and a wheel 32. The wheel base 31 is rotatably coupled to the body 20 with respect to the body 20 about a virtual axis C. The virtual axis C does not perpendicular to the virtual reference plane P. The wheel 32 is pivotally mounted to the wheel base 31.

The virtual rotating shaft C is offset from the end of the main body 20 in the vertical direction from the one end of the main body 20, and the other end of the virtual rotating shaft C is disposed adjacent to the main body 20 in the vertical direction. One end of the handle 22 is offset.

A wheel stand 33 is disposed on a side of the wheel base 31 adjacent to the body 20, and the foot base 33 is fixedly coupled to the body 20, and the wheel base 31 is pivotably pivotally mounted on the foot base 33 about the virtual rotating shaft C. .

An abutting surface 331 is disposed on a side of the body 33 adjacent to the body 20, and the abutting surface 331 is perpendicular to the virtual rotating shaft C. The abutting surface 331 abuts against the bottom surface 21 of the body 20. The caster 30 has a The spacer 34 is disposed between the bottom surface 21 of the body 20 and the abutting surface 331 of the base 33 such that the bottom surface 21 of the body 20 and the abutting surface 331 of the foot 33 are not parallel to each other.

Please refer to FIG. 6 again, which is an action diagram of the first embodiment of the tool cart for automatically guiding the caster of the present invention. The tool cart 10 adopts the above structure, and when the tool cart 10 is placed on the ground, the wheel base 31 can generate a tendency to move toward an end adjacent to the body 20 where the handle 22 is disposed, if the tool cart 10 is laterally or In other non-predetermined directions, the wheel base 31 is moved to the opposite direction of the moving direction of the tool cart 10 due to the force, but the wheel base 31 can be oriented in a predetermined direction as long as the tool cart 10 is not continuously moved. The direction of the wheel 32 is deflected and changed, thereby preventing the tool cart 10 from moving smoothly and reducing the moving distance.

If the user holds the handle 22 and pushes the tool cart 10 forward, the wheel base 31 is less prone to yaw. Even if the road surface is uneven, the wheel base 31 can automatically return to ensure that the tool cart 10 can Go straight ahead.

Please refer to FIG. 7 , which is a cross-sectional structural view of a caster of a second embodiment of a tool cart for automatically guiding a caster of the present invention. The second embodiment of the present invention is substantially the same as the first embodiment. The main difference is that the bottom surface 21a is not parallel to the virtual reference surface P, and the abutting surface 331a of the foot 33a directly abuts the body 20a in parallel with each other. The bottom surface 21a.

Please refer to FIG. 8 , which is a cross-sectional structural view of a caster according to a third embodiment of the tool cart for automatically guiding the caster of the present invention. The third embodiment of the present invention is substantially the same as the first embodiment. The main difference is that the abutting surface 331b is not perpendicular to the virtual rotating shaft C, and the abutting surface 331b of the foot 33b directly abuts the body in parallel with each other. The bottom surface 21b of 20b.

As far as the above is concerned, it can be concluded that the present invention has the following advantages:

1. A tool cart for automatically guiding a caster of the present invention, wherein the tool cart comprises a body and a caster, the body having a virtual reference surface extending in a horizontal direction, the caster comprising a wheel base and a wheel, the wheel base The body can be rotatably connected to the body with a virtual rotating shaft as a center, the virtual rotating shaft is not perpendicular to the virtual reference surface, and the wheel is pivoted on the wheel base. The tool cart adopts the above structure, and the user presets When the tool car is moved in the direction, the wheel seat is not prone to yaw, and even if the road surface is not flat, the wheel seat can automatically return to ensure that the tool car can straight forward.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the numerical value is changed or the equivalent element is replaced, or the equivalent of the scope of the patent application of the present invention. Changes and modifications are still within the scope of the invention patent.

10‧‧‧Tool cart
20‧‧‧ body
21‧‧‧ bottom
22‧‧‧Hands
30‧‧‧ casters
31‧‧‧ wheel seat
32‧‧‧ Wheels
33‧‧‧ feet
331‧‧‧Abutment
34‧‧‧ pads
20a‧‧‧ Ontology
21a‧‧‧ bottom
33a‧‧‧foot
331a‧‧‧Abutment
20b‧‧‧ Ontology
21b‧‧‧ bottom
33b‧‧‧foot
331b‧‧‧Abutment
P‧‧‧virtual datum
C‧‧‧Virtual shaft

Fig. 1 is a perspective view showing a first embodiment of a tool cart for automatically guiding a caster of the present invention. Fig. 2 is an exploded perspective view showing the first embodiment of the tool cart for automatically guiding the caster of the present invention. Fig. 3 is a plan view showing the horizontal direction of the first embodiment of the caster automatic guiding tool of the present invention. Figure 4 is a cross-sectional structural view showing the caster of the first embodiment of the caster automatic guiding tool of the present invention. Fig. 5 is a cross-sectional structural view showing the caster of the first embodiment of the caster automatic guiding tool of the present invention. Fig. 6 is a motion diagram of the first embodiment of the tool cart for automatically guiding the caster of the present invention. Fig. 7 is a cross-sectional structural view showing a caster of a second embodiment of a tool cart for automatically guiding a caster of the present invention. Figure 8 is a cross-sectional structural view showing a caster of a third embodiment of the caster automatic guiding tool of the present invention.

Claims (6)

A caster automatic guiding tool cart comprising: a body having a virtual reference surface extending in a horizontal direction; a caster including a wheel base and a wheel, the wheel base being capable of a virtual shaft The body is rotatably coupled to the body relative to the body, the virtual rotating shaft is not perpendicular to the virtual reference surface, and the wheel is pivotally disposed on the wheel base. A tool cart for automatically guiding a caster according to claim 1, wherein a side of the wheel seat adjacent to the body is provided with a foot fixedly connected to the body, the wheel seat being rotatable about the virtual rotating shaft The ground pivot is located at the foot. The tool cart of the automatic guide of the caster according to claim 2, wherein the bottom of the body is provided with a bottom surface in a vertical direction, the bottom surface is parallel to the virtual reference surface, and the foot is disposed adjacent to the side of the body with an abutment The abutting surface is perpendicular to the virtual rotating shaft, and the abutting surface abuts against the bottom surface of the body, the caster has a pad disposed between the bottom surface of the body and the abutting surface of the foot. The abutment faces of the bottom surface of the body and the foot are not parallel to each other. The tool cart of the automatic guide of the caster according to claim 2, wherein the bottom of the body is provided with a bottom surface in a vertical direction, the bottom surface is not parallel to the virtual reference surface, and a side of the foot adjacent to the body is provided with an offset The abutting surface is perpendicular to the virtual rotating shaft, and the abutting faces of the feet directly abut against the bottom surface of the body in parallel with each other. The tool cart of the automatic guide of the caster according to claim 2, wherein the bottom of the body is provided with a bottom surface in a vertical direction, the bottom surface is parallel to the virtual reference surface, and the foot is disposed adjacent to the side of the body with an abutment The abutting surface is not perpendicular to the virtual rotating shaft, and the abutting faces of the feet directly abut against the bottom surface of the body in parallel with each other. A tool for automatically guiding a caster according to any one of claims 1 to 5, wherein the body is provided with a handle at one end in the horizontal direction, the handle being adjacent to the top of the body in the vertical direction, the virtual shaft being leaded An end of the vertical direction adjacent to the top side of the body is offset from an end of the body different from the handle, and the other end of the virtual rotating shaft in the vertical direction is offset from an end of the body where the handle is disposed.