KR20170045472A

KR20170045472A - Tilting angle detection device of mast for forklift truck

Info

Publication number: KR20170045472A
Application number: KR1020150145059A
Authority: KR
Inventors: 박진근
Original assignee: 박진근
Priority date: 2015-10-19
Filing date: 2015-10-19
Publication date: 2017-04-27
Also published as: KR101829239B1

Abstract

The present invention relates to a device for sensing a tilt angle of a mast of a forklift truck which comprises: a fixation bar formed on one side of the mast; a bracket in the shape of ㄷ which is formed to be separated, by a support rod, from the fixation bar to have a certain gap and has a rotation axis arranged in a horizontal direction on both end portions; an axis housing which is formed to be located on the inside of the bracket and installed to a rotation axis; an instrument panel formed on a front side of the axis housing; an instrument axis formed from a rear side of the axis housing to penetrate the instrument panel; and a power transmission means for moving an indication needle of the instrument panel. The power transmission means comprises: a first belt for transmitting rotation force of the rotation axis; a gear member for converting rotation force of the first belt in a perpendicular direction; and a second belt for transmitting rotation force, having been converted by the gear member, to the instrument axis. The device for sensing a tilt angle of a mast of the present invention is arranged as a module type and thus can be applied to various types of forklift truck models in a simple and convenient manner. As a user immediately check change of the tilt angle of the mast through the instrument panel, a user can prevent load from escaping from a fork as weight of the load placed on the fork is focused on the front side or prevent overturn caused when a vehicle body is tilted in a worse case.

Description

TECHNICAL FIELD [0001] The present invention relates to a tilting angle detecting device for a forklift,

The present invention relates to a mast tilting angle sensing device for a forklift, more particularly, to a mast tilting angle sensing device in a module form, which can be easily and conveniently applied to various types of forklift models, So that the tilt of the mast can be controlled so that the load of the load placed on the fork is directed forward so that the load is separated from the fork or if the vehicle body is severely tilted, .

BACKGROUND ART [0002] Generally, a forklift is widely used for lifting or lowering a relatively heavy load or transporting it to a desired position. Such a forklift can be classified into an engine forklift and an electric forklift depending on what the power source is, Are mainly used outdoors, and electric forklifts are often used in indoor or limited areas because of the generation of soot and noise.

The electric forklift includes a body supported by a front axle drive wheel and a rear axle steering wheel, and a mast provided in front of the vehicle body, and has a carriage which can move up and down along a mast. The forks of the pair are installed to be adjustable in spacing.

Also, the mast may be rotated forward or backward by a tilt cylinder to form a slight inclination. For this purpose, the mast may be coupled to the vehicle body so as to be rotatable when engaged with the vehicle body.

The forklift is provided with a drive shaft for supporting a drive wheel on a vehicle body, and hinge brackets are provided on both sides of the drive shaft to engage with the vehicle body integrally with the drive shaft.

Further, the mast is configured to be tilted by being rotated forward or backward by a tilt cylinder, and a fork is installed in front of the mast so that the cargo can be loaded.

And a lift cylinder for lifting or lowering the fork so as to load or unload the cargo in the vertical direction after the cargo is loaded on the fork.

In such a forklift, the driver extends the stroke of the tilt cylinder to increase the fore-and-aft angle, and then pushes the fork to the lower portion of the load. Then, the fork is raised by using the lift cylinder, the stroke of the tilt cylinder is shortened, It is possible to move the load to another place while approaching the frame side of the forklift and unload the load.

However, the above-described conventional forklift has a structure in which the inclination angle of the mast assembly is adjusted by adjusting the tilt lever depending on the sense or skill only when working in a sloping workplace. Therefore, when the forklift is loaded on the fork, There is a serious problem that the load of the load is directed forward and the load is separated from the fork, or in the worst case, the vehicle body is tilted to be overturned.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a mast inclination angle sensing device in a modular form, which can be easily and conveniently applied to various types of forklift models, The tilt of the mast is controlled so that the load of the load placed on the fork is directed forward so that the load is separated from the fork or, in severe cases, the vehicle body can be prevented from being tilted to overturn. It has its purpose.

According to an aspect of the present invention, there is provided an apparatus for sensing a mast inclination angle of a forklift, the apparatus comprising: a fixed base formed at one side of a mast; A '''shaped bracket formed at a predetermined distance from the fixing table by a support rod and having a rotation axis in the lateral direction at both ends thereof; A shaft housing formed so as to be positioned on the inner side of the bracket, the shaft housing being formed on the rotation shaft; An instrument panel formed in front of the shaft housing; A gauge shaft formed through the instrument panel from the rear of the shaft housing; And a power transmission means for moving the instrument needle of the instrument panel, wherein the power transmission means includes a first belt for transmitting rotational force of a rotating shaft, a gear member for converting a rotational force of the first belt in an orthogonal direction, And a second belt for transmitting the rotational force converted from the gear member to the gauge shaft.

As described above, the present invention can be applied to various types of forklift models conveniently and conveniently by providing a mast inclination angle sensing device in the form of a module, and the change of the inclination angle of the mast can be directly confirmed through the instrument panel, It is a very useful invention to prevent the load on the cargo placed on the cargo forward and to prevent the cargo from being dislodged from the fork or, in severe cases, to prevent the car body from tipping over.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a mast inclination angle detecting device of a forklift according to the present invention. FIG.
2 is a plan view showing a mast inclination angle detecting device of a forklift according to the present invention.
3 is a sectional view showing a mast inclination angle sensing device of a forklift according to the present invention.
4 is a front view showing a mast inclination angle detecting device of a forklift according to the present invention.

The above and other objects, features, and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

The apparatus 100 for detecting a mast tilt angle of a forklift according to the present invention is provided in a module form and installed on one side of a mast where a driver's seat is located. A bracket 120; A shaft housing (130); A gauge shaft 140; Dashboard 150; And a power transmitting means (160).

The fixing table 110 is fixed to one side of the mast and fixed to the mast through various fixing means such as welding.

The support bar 110 is formed in a predetermined length in the forward and backward direction on the upper surface of the fixing table 110. The fixing bar 110 is coupled to one end and the bracket 120 is coupled to the other end.

The structure of the fixing table 110 coupled to one end of the supporting rod 110 may be omitted, and one end of the supporting rod 110 may be directly coupled to the mast.

The bracket 120 has a U-shaped cross-section at its both ends, and a shaft 121 is formed in a lateral direction of the bracket 120. A shaft housing 130 is installed inside the rotation shaft 121.

The shaft housing 130 is rotated up and down by a predetermined angle according to the inclination angle of the mast, that is, the inclination.

A dashboard 150 having a gauge needle 151 is formed on the front side of the shaft housing 130 and a gauge shaft 140 for operating the gauge needle 151 is mounted on the shaft housing 130 And is connected to the center of the instrument needle 151 through the instrument panel 150 from the rear.

The power transmission means 160 for operating the instrument needle 151 includes a first belt 161 for transmitting the rotational force of the rotation shaft 121 and a second belt 161 for transmitting the rotational force of the first belt 161 in the orthogonal direction And a second belt 162 for transmitting the rotational force converted from the gear member 162 to the gauge shaft 140.

Further, the gear member 162 may be formed of a coupling structure such as a bevel gear, and such a gear coupling structure corresponds to a well-known structure, and thus a detailed description thereof will be omitted.

In the apparatus 100 for detecting a mast tilt angle of the forklift according to the present invention, the instrument panel 150 including the shaft housing 130 moves up and down a predetermined angle along the rotation axis 121 according to the tilt angle of the mast. The rotational force of the rotary shaft 121 is transmitted to the gauge shaft 140 through the power transmitting means 160 and the gauge needle 151 of the instrument panel 150 finally moves by the rotational force transmitted to the gauge shaft 140 And the driver adjusts the inclination angle of the mast through the scale 150a indicated by the instrument needle 151. [

Although the present invention has been described with reference to the exemplary embodiments, it is to be understood that the present invention is not limited to the disclosed exemplary embodiments, and that various changes and modifications will be apparent to those skilled in the art. Various modifications and variations may be made without departing from the scope of the appended claims.

Description of the Related Art [0002]
100: Mast tilt sensor of forklift
110: fixed base 120: bracket
130: Axial housing 140: Gauge shaft
150: Instrument panel 160: Power transmission means

Claims

A fixing table 110 formed on one side of the mast; Shaped bracket 120 formed at a predetermined distance from the fixing table 110 by a support bar 111 and having a rotation axis 121 in the lateral direction at both ends thereof; A shaft housing (130) formed inside the bracket (120) and axially installed in the rotation shaft (121); A dashboard 150 formed in front of the shaft housing 130; A gauge shaft 140 formed through the instrument panel 150 from the rear of the shaft housing 130; And a power transmitting means 160 for moving the instrument needle 151 of the instrument panel 150. The power transmitting means 160 includes a first belt 161 for transmitting the rotational force of the rotating shaft 121, A gear member 162 for converting the rotational force of the first belt 161 in the orthogonal direction and a second belt 163 for transmitting the rotational force converted from the gear member 162 to the gauge shaft 140 Wherein the mast inclination angle detecting device is configured to detect the mast inclination angle of the forklift.