KR101562182B1 - Loading weight detective apparatus in truck - Google Patents

Loading weight detective apparatus in truck Download PDF

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Publication number
KR101562182B1
KR101562182B1 KR1020140084449A KR20140084449A KR101562182B1 KR 101562182 B1 KR101562182 B1 KR 101562182B1 KR 1020140084449 A KR1020140084449 A KR 1020140084449A KR 20140084449 A KR20140084449 A KR 20140084449A KR 101562182 B1 KR101562182 B1 KR 101562182B1
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KR
South Korea
Prior art keywords
block
vertical
horizontal
elastic plate
leaf spring
Prior art date
Application number
KR1020140084449A
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Korean (ko)
Inventor
유태호
정수연
이종원
Original Assignee
한국에이.엔.디 주식회사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
    • G01G19/12—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles having electrical weight-sensitive devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
    • G01G19/18—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads having electrical weight-sensitive devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/08—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a leaf spring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A first block (10) having a first magnet (13) at its bottom and attached to a leaf spring (1) of a vehicle and having an elastic space part (60) And a second block 20 disposed at a predetermined distance from the side of the elastic space 60 of the first block 10 and having a second magnet 23 disposed on the bottom of the first block 10 and attached to the leaf spring 1 of the vehicle. Both ends of which are fixedly coupled to the first vertical support surface 12 of the first block 10 and the second vertical support surface 22 of the second block 20 so that the deformation of the leaf spring 1 A vertical elastic plate 40 which is deformed by the relative rotation of the first block 10 and the second block 20 and a second elastic block 40 which is provided on a part of the first block 10 and deforms And a sensor unit 50 for detecting the degree of the abnormality.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a loading weight detecting apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for detecting the weight of a truck, and more particularly, to a system for detecting the weight of a truck by detecting a shape change of a leaf spring of the truck.

Generally, over-running of a lorry is a major factor of damages to roads and bridges, and it is not only a factor that interferes with traffic flow, but also poses a high risk of accident such as falling of loaded cargo.

In order to control the overloaded vehicles, some of the major roads are equipped with overload vehicle control equipment. Most of them are equipped with a fixed shaft measuring system that measures the weight of the vehicle by installing a sensor on the bottom of the road surface, and it is also required to install a private gypsom system in construction sites, warehouses and ports.

However, such a fixed system is not easy to inspect all freight vehicles, and has a problem in that it is time-consuming and costly.

In view of such problems, devices for detecting the weight of cargo in the vehicle have been proposed. Most of such proposals are methods of welding the strain gauge to the plate spring of the vehicle by attaching it to the plate spring or attaching it to the leaf spring using a separate fixing means.

As a representative example of such conventional techniques, there is a registered patent 10-1017274 (a load measuring apparatus and a measuring method of a vehicle, registered on Feb. 17, 2011).

The above patent discloses an apparatus and a method for detecting a load of a cargo by measuring a tilt of a leaf spring deformed according to a load of a cargo by using a tilt sensor for measuring the tilt of the leaf spring.

However, in the method of detecting the inclination of the leaf spring and detecting the load, it is impossible to detect an accurate load when the bottom surface is inclined. Therefore, in addition to the sensor for detecting the inclination of the leaf spring, In addition, the apparatus must be re-calculated using the tilt information collected from a plurality of sensors, which complicates the apparatus and requires a separate means for calculation.

In addition, although it is not clearly described about fixing the tilt sensor to the leaf spring, the fixing method using welding or bolt, which is a normal joining or joining method, The method may be an illegal matter corresponding to the structural change of the leaf spring, and the restoring force of the leaf spring is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus for detecting the load weight of a truck, which can accurately detect the load on the slope.

Another object of the present invention is to provide an apparatus for detecting the weight of a loaded truck that does not require welding or the like for installation.

According to an aspect of the present invention, there is provided an apparatus for detecting a load weight of a vans, the apparatus comprising: a first magnet disposed on a bottom surface of the first magnet, the first magnet being attached to a leaf spring of the vehicle, 1 block 10 and a second magnet 23 disposed on the bottom surface of the first block 10 at a predetermined distance from the side of the elastic space 60 of the first block 10 and attached to the leaf spring 1 of the vehicle Both ends of the second block 20 are fixed to the first horizontal support surface 11 of the first block 10 and the second horizontal support surface 21 of the second block 20, The deformation of the first block 10 is deformed by the relative rotation between the first block 10 and the second block 20 and the first vertical support surface 12 and the second vertical support surface 22 of the second block 20 so that deformation of the leaf spring 1 is transmitted to the first block 10 and the second block 20 Lt; RTI ID = 0.0 > Provided in the part of 40, the first block 10 includes a sensor section 50 for detecting the amount of deformation of the horizontal elastic plate 30 and the vertical resilient plate (40).

The load weight detection apparatus of the present invention detects the load weight attached to the leaf spring and detects the degree of deformation of the leaf spring based on the load weight as the degree of rotation at two points so that even when the vehicle is on an inclined surface, There is an effect that can be detected.

In addition, the apparatus for detecting the weight of a lorry according to the present invention has the effect of preventing deformation of the leaf spring and preventing performance deterioration by being attached and installed at two positions spaced apart from each other by magnets.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an apparatus for detecting the weight of a freight car according to a preferred embodiment of the present invention. FIG.
Fig. 2 is a front structural view of Fig. 1. Fig.
3 is an installation state diagram of the present invention.
4 and 5 are a perspective view and a front view, respectively, of a state in which warpage occurs in the horizontal elastic plate and the vertical elastic plate due to deformation of the leaf spring.
Figs. 6 and 7 are front views showing the shape change of the leaf spring according to the load, respectively.
8 is a front view of an apparatus for detecting the weight of a truck according to another embodiment of the present invention.
Fig. 9 is a front view of the configuration of Fig. 8 in a state in which the vertical elastic plate is warped by the deformation of the leaf spring.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for detecting the weight of a lorry according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of an apparatus for detecting the weight of a car according to a preferred embodiment of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is an installation view of FIG.

Referring to FIGS. 1 to 3, the loading weight detecting apparatus for a freight car according to a preferred embodiment of the present invention includes a first magnet 13 disposed on a bottom surface thereof, and attached to a leaf spring 1 of a vehicle, And a second magnet (23) disposed on the bottom surface of the first block (10) and spaced apart from the elastic space portion (60) side of the first block (10) A first vertical supporting surface 12 provided on the first block 10 and a second vertical supporting surface 22 on the second block 20, A vertical elastic plate 40 deformed by the relative rotation of the first block 10 and the second block 20 to the deformation of the leaf spring 1, And a sensor unit 50 provided at a part of the vertical elastic plate 40 for detecting a degree of deformation of the vertical elastic plate 40.

Hereinafter, the configuration and operation of the apparatus for detecting the weight of a truck according to the preferred embodiment of the present invention will be described in detail.

First, the first block 10 is made of metal, and the first magnet 13 is fixedly installed on the bottom surface thereof.

The first block 10 has a first horizontal support surface 11 formed on one side of a bottom surface (a) of the first magnet 13 on which the first magnet 13 is fixed and at a position higher in height than the bottom surface (a) Respectively.

A horizontal surface c extending in a direction away from the bottom surface a in a horizontal state with respect to the ground is formed on the upper side of the vertical surface b of the first horizontal supporting surface 11, Respectively.

The vertical surface (b) and the horizontal surface (c) form two sides of the elastic space portion (60).

At the end of the horizontal plane (c), a first vertical support surface (12) is provided in a vertical direction.

The shape of the first block 10 shown in the figure is one embodiment, but the shape of the first block 10 is not limited to the bottom surface a, the first horizontal support surface 11, the first vertical support surface 12, Irrespective of the shape of the first block 10.

One end of the horizontal elastic plate 30 is fixed to the first horizontal support surface 11 of the first block 10 by fixing means such as a bolt and the first vertical support surface 12 is also fixed One end of the vertical elastic plate 40 is fixed.

The horizontal elastic plate 30 and the vertical elastic plate 40 are respectively made of a metal material having an elastic restoring force and the other ends thereof are connected to the second horizontal support surface 21 and the second vertical support surface 21 of the second block 20 22 by a fixing means such as a bolt.

The horizontal elastic plate 30 and the vertical elastic plate 40 are the other two sides of the elastic space portion 60 described above. The elastic space 60 provides a space so that the rotational deformation of the horizontal elastic plate 30 and the vertical elastic plate 40 caused by the deformation of the leaf spring 1 can occur smoothly without interference.

The second block 20 has a bottom surface A which is flush with the bottom surface a of the first block 10 and on which the second magnet 23 is fixed, A second horizontal support surface 21 having the same height as the first horizontal support surface 11 and a second end of the vertical elastic plate 40 having one end fixed to the first vertical support surface 12, And a second vertical support surface (22) connected to the first vertical support surface (22) so as to be positioned perpendicular to the paper surface.

That is, the other ends of the horizontal elastic plate 30 and the vertical elastic plate 40 are coupled to the second horizontal support surface 21 and the second vertical support surface 22, respectively, And is spaced apart with the portion 60 interposed therebetween.

The second block 20 has a bottom A at the same height as the bottom a of the first block 10 and a second magnet 23 fixed to the bottom A, And is attached to the leaf spring 1.

The first magnet 13 and the second magnet 23 are both ferromagnetic so that their position is not changed even when the vehicle is running or the plate spring 1 is deformed, so that the first magnet 13 and the second magnet 23 are fixed.

As described above, since the present invention can be fixed by using the first magnet 13 and the second magnet 23 without using welding or other fastening means when installing the leaf spring 1, It is possible to solve the problem of the legal problem and the physical deterioration that occur.

FIGS. 4 and 5 are a perspective view and a front view, respectively, of a state in which a horizontal elastic plate and a vertical elastic plate are bent by deformation of a leaf spring, and FIGS. 6 and 7 show a shape change of a leaf spring according to a load, respectively Front view.

4 to 7, the first block 10 and the second block 20 are fixed to the upper portion of the leaf spring 1 of the freight car, 1) is determined.

Fig. 6 is a front view of the leaf spring 1 in a state in which the cargo is not loaded, and is in a state of being warped with a fixed curvature. When the cargo is loaded in such a state, the curvature of the top surface of the leaf spring 1 becomes gentle depending on the weight of the cargo. When the cargo is loaded at maximum as shown in FIG. 7, It becomes flat.

The leaf spring 1 is deformed according to the weight of the cargo, and the horizontal elastic plate 30 and the vertical elastic plate 40 are deformed by the deformation.

That is, the first block 10 and the second block 20 at the positions spaced apart from each other in the vehicle longitudinal direction of the leaf spring 1 are provided with a first magnet 13 and a second magnet And the degree of deformation of the horizontal elastic plate 30 and the vertical elastic plate 40 is determined according to the curvature of the upper surface of the leaf spring 1.

As shown in Figs. 4 and 5, the curvature of the upper surface of the leaf spring 1 is detected as the curvature between two positions on the leaf spring 1, 2 block 20 and the vertical elastic plate 40, which are connected to each other.

The degree of deformation of the horizontal elastic plate 30 and the vertical elastic plate 40 is detected by the sensor unit 50 inserted into the upper side of the first block 10. The sensor unit 50 may be a sensor for detecting the deformation of the horizontal elastic plate 30 and the vertical elastic plate 40 by a change in magnetic field, and a strain gauge for detecting a change in resistance may be used.

As described above, according to the present invention, the curvature between two points on the upper surface of the leaf spring 1 can be detected and the weight of the loaded cargo can be detected, so that the conventional method of detecting the tilt of the leaf spring 1 at a specific position It is possible to solve the problem that an error may occur in the inclination detected when the lorry is located at a slanted position rather than being parked on a flat surface.

FIG. 8 is a block diagram of an apparatus for detecting the weight of a truck according to another embodiment of the present invention, and FIG. 9 shows a modification of the structure of FIG.

Referring to FIGS. 8 and 9 and FIGS. 3 to 7 again, the loading weight detecting apparatus for a freight car according to another embodiment of the present invention includes a first magnet 13 disposed on a bottom surface thereof, A first block 10 attached to the first block 10 at a predetermined distance from the elastic space 60 side of the first block 10, A second block 20 provided on the first block 10 and attached to the leaf spring 1 of the vehicle and a second vertical support surface 12 provided on the first block 10 and a second vertical support surface 12 provided on the second block 20, A vertical elastic plate 40 whose both ends are fixedly coupled to the vertical support surface 22 to deform the plate spring 1 by the relative rotation of the first block 10 and the second block 20, And a sensor unit 50 provided on a part of the first block 10 to detect a degree of deformation of the vertical elastic plate 40.

Hereinafter, the structure and operation of the apparatus for detecting the weight of a truck according to another embodiment of the present invention will be described in detail.

First, the first block 10 is made of metal, and the first magnet 13 is fixedly installed on the bottom surface thereof.

The first block 10 has a first horizontal support surface 11 formed on one side of a bottom surface (a) of the first magnet 13 on which the first magnet 13 is fixed and at a position higher in height than the bottom surface (a) Respectively.

A horizontal surface c extending in a direction away from the bottom surface a in a horizontal state with respect to the ground is formed on the upper side of the vertical surface b of the first horizontal supporting surface 11, Respectively.

The vertical surface (b) and the horizontal surface (c) form two sides of the elastic space portion (60).

At the end of the horizontal plane (c), a first vertical support surface (12) is provided in a vertical direction.

The shape of the first block 10 shown in the figure is one embodiment, but the shape of the first block 10 is not limited to the bottom surface a, the first horizontal support surface 11, the first vertical support surface 12, Irrespective of the shape of the first block 10.

The vertical elastic plate 40 is made of a metal having elastic restoring force and the other end is fixed to the second vertical support surface 22 of the second block 20 by fixing means such as a bolt.

1 and 2, the horizontal elastic plate 30 is omitted in the horizontal portion of the vertical elastic plate 40, . The elastic space portion 60 provides a space for allowing the rotational deformation of the vertical elastic plate 40, which is generated in accordance with the deformation of the leaf spring 1, to occur smoothly without interference.

The second block 20 has a bottom surface A which is flush with the bottom surface a of the first block 10 and on which the second magnet 23 is fixed, A second horizontal support surface 21 having the same height as the first horizontal support surface 11 and a second end of the vertical elastic plate 40 having one end fixed to the first vertical support surface 12, And a second vertical support surface (22) connected to the first vertical support surface (22) so as to be positioned perpendicular to the paper surface.

That is, the other end of the vertical elastic plate 40 is coupled to the second vertical support surface 22, and is spaced apart from the first block 10 with the elastic space portion 60 interposed therebetween.

The second block 20 has a bottom A at the same height as the bottom a of the first block 10 and a second magnet 23 fixed to the bottom A, And is attached to the leaf spring 1.

The first magnet 13 and the second magnet 23 are both ferromagnetic so that their position is not changed even when the vehicle is running or the plate spring 1 is deformed, so that the first magnet 13 and the second magnet 23 are fixed.

As described above, since the present invention can be fixed by using the first magnet 13 and the second magnet 23 without using welding or other fastening means when installing the leaf spring 1, It is possible to solve the problem of the legal problem and the physical deterioration that occur.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

10: first block 11: first horizontal supporting surface
12: first vertical supporting surface 13: first magnet
20: second block 21: second horizontal supporting surface
22: second vertical supporting surface 23: second magnet
30: horizontal elastic plate 40: vertical elastic plate
50: sensor part 60: elastic space part

Claims (4)

A first block 10 provided with a first magnet 13 on the bottom surface thereof and attached to the leaf spring 1 of the vehicle and having a part of the elastic space portion 60;
A second block 20 located at a predetermined distance from the side of the elastic space portion 60 of the first block 10 and having a second magnet 23 on the bottom surface and attached to the leaf spring 1 of the vehicle;
Both ends of the first vertical supporting surface 12 and the second vertical supporting surface 22 of the first block 10 are fixedly coupled to each other to deform the leaf spring 1, A vertical elastic plate 40 deformed by the relative rotation of the first block 10 and the second block 20; And
And a sensor unit (50) provided on a part of the first block (10) and detecting a degree of deformation of the vertical elastic plate (40).
The method according to claim 1,
Both ends of the first horizontal supporting surface 11 and the second horizontal supporting surface 21 of the first block 10 are coupled and fixed to the second horizontal supporting surface 21 of the second block 20, And a horizontal elastic plate 30 deformed by the relative rotation of the first block 10 and the second block 20,
Wherein the deformation degree of the vertical elastic plate (40) and the horizontal elastic plate (30) is detected by the sensor unit (50).
3. The method according to claim 1 or 2,
The first block (10)
A bottom surface (a) on which the first magnet (13) is fixed;
A first horizontal support surface (11) provided on one side of the bottom surface (a) at a position higher in height than the bottom surface (a);
A vertical surface (b) provided vertically from an end side to an upper side of the first horizontal support surface (11);
A horizontal surface (c) extending in a direction away from the bottom surface (a) in a horizontal state with respect to the ground on the upper side of the vertical surface (b); And
And a first vertical support surface (12) provided at an end of the horizontal surface (c) in a direction perpendicular to the paper surface.
The method of claim 3,
The second block (20)
A bottom surface (A) of the same height as the bottom surface (a) of the first block (10) and on which the second magnet (23) is fixedly installed;
A second horizontal support surface 21 located at a higher position than the bottom surface A and flush with the first horizontal support surface 11; And
And a second vertical support surface (22) connected to the other end of the vertical elastic plate (40), one end of which is fixed to the first vertical support surface (12) Load weight detection device.
KR1020140084449A 2014-04-30 2014-07-07 Loading weight detective apparatus in truck KR101562182B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20140052501 2014-04-30
KR1020140052501 2014-04-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10151646B2 (en) 2016-02-23 2018-12-11 i2A Systems Co., Ltd. Force sensor using displacement amplification mechanism and apparatus having the same for measuring weight
KR20210029593A (en) * 2019-09-06 2021-03-16 주식회사기원전자 ISO 11783 compliant vehicle weight meter system based on tilting sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010054297A (en) 2008-08-27 2010-03-11 Tokai Rubber Ind Ltd Load sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010054297A (en) 2008-08-27 2010-03-11 Tokai Rubber Ind Ltd Load sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10151646B2 (en) 2016-02-23 2018-12-11 i2A Systems Co., Ltd. Force sensor using displacement amplification mechanism and apparatus having the same for measuring weight
KR20210029593A (en) * 2019-09-06 2021-03-16 주식회사기원전자 ISO 11783 compliant vehicle weight meter system based on tilting sensor
KR102242991B1 (en) 2019-09-06 2021-04-21 주식회사기원전자 ISO 11783 compliant vehicle weight meter system based on tilting sensor

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