JPS59176133A - Load weight warning device for wagon - Google Patents

Abstract

PURPOSE:To generate a warning signal when load weight goes beyond the tolerance as well as to aim at improvements in safety, by installing a load sensor in position between a wagon body and a supporting frame. CONSTITUTION:When maize small fragments are loaded on a wagon body 13 by way of example, a load signal is produced in each of load sensors 18, 19, 20 and 21 and fed to each of adders 46, 47, 53 and 54. At this time, repercussions due to external vibrations or the like are eliminated by low-pass filters 42, 43, 44 and 45 whereby only those signals being reflected with actual load weight are inputted into each of adders 46, 47, 53 and 54. These adders 46 and 47 add signals of these load sensors 18, 19, 20 and 21 separately before and after and further respective signals are added with an adder 48. And, this load weight is compared with load tolerance weight of a setter 50 with a comparator 51. If overload is the case, an alarm 52 gets operating.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a loaded weight warning device for a wagon, which measures the loaded weight of the wagon body and issues an alarm when the loaded weight exceeds a load tolerance range.

In a vehicle such as a tractor, a wagon is placed on the hood of the vehicle body, and feed crops such as grass and grass harvested by a maize harvester or forage harvester are fed into the wagon through a chute and loaded onto the wagon. There is a tipping wagon device in which when a predetermined amount of feed crops has accumulated in the wagon, the wagon is lifted up and rotated by a hydraulic cylinder to be fed into a bunker silo or the like.

When loading crops into most of these types of wagons, a worker climbs onto the wagon itself and steps on it with his/her feet.

The more you step on it, the more it tightens and the volume decreases, so there were times when you could load more than the allowable loading range. In the case of overloading, the angle of the vehicle toppling to the left or right becomes small. Especially with tipping wagon devices, when loading crops into a silo, etc., the entire wagon is lifted and rotated, so the center of gravity is It was extremely dangerous to climb, and it was necessary to ensure that the load weight was kept within an acceptable range.

Taking these points into consideration, the great invention was designed to improve safety by issuing a warning when the loaded weight exceeds the permissible range. Set the general outline.

In this vehicle in which objects are loaded onto the wagon, a load sensor is provided between the wagon body and a pair of left and right support frames that support the wagon body.

The main feature is that an alarm is provided to issue an alarm when the loaded weight measured by these load sensors exceeds the allowable loading range.

The present invention will be described in detail below with reference to the illustrated embodiment.
In the figure, (1) is a tractor body, and the front part is provided with a bonnet (2) that covers the engine etc., a front axle frame (3), etc., and the front axle frame (3) connects the front wheels (4) through the front axle. ) is supported. Tractor body (1)
A rear wheel (6) is supported at the rear of the vehicle via a rear axle case i5), etc., and a rear wheel fender (7) is mounted inside the rear wheel (6).
) is being thrown. (8) is a driver's seat, and (9) is a steering handle, which are attached so as to be reversible between a rearward driving state shown in the figure and a forward driving state not shown. (10
) are guide rails, which are arranged in the longitudinal direction on both the left and right sides of the bonnet (2), and each guide rail (10) is connected to the tractor body (]) K via the front bracket Qη and the rear bracket (2). It is fixed freely. 0.1
The main body of the tipping wagon is used to input small pieces of noise, etc., and is rotatably supported around a horizontal axis (G) at the upper end of the column σ, and can be raised and lowered by a hydraulic cylinder OQ. The bottom plate of the tapping wagon (to) is the bonnet (2)
The central part is shaped convexly to correspond to the shape. The Q ends of the pillars are provided with a pair of left and right support frames (1710) that protrude upward from the front ends, and their upper ends are connected to each other on the left and right,
A pair of left and right hydraulic cylinders αQ are pivotally connected at the lower end to a support frame (11).The support frame (11) is for each guide rail (10). It can be slid in and out from the front side.On each of the pair of left and right support frames (10), load sensors (+g) are installed at the front and rear to receive the load of the Wacoon main body 03, as shown in Fig. 2. a, p■(2]).In addition, this load sensor (181(1!'Th1
JJ (1 in 211 uses a load cell etc.
221 has a pair of left and right arms (3)), and each arm (23) can swing up and down by a support shaft 4) that pivots the upper end of the hydraulic cylinder OQ to the wagon body G3. Supported. A pair of left and right arms (Senouchi, one arm j23i extends to the rear end of the wagon α3, and can be operated up and down to the seat seated in the driver's seat (8).

As shown in FIG. 3, it can be selectively engaged and detached from a pair of locking tools (251+26). Then, attach the arm mount) to the lower locking tool
When engaged with the wagon (22), the wagon (22)
) is positioned so as to protrude upward from the upper end of the wagon, and when engaged with the upper locking member, it is located below the upper end of the wagon.

(271 is a maize harvester attached to the rear of the tractor body f+) via a three-point linkage mechanism (281, divider shield 9), a reaping blade (30), a speed device i31+, and a casing (manufactured by Casing Co., Ltd.).

It is equipped with a flywheel (33), etc., and its reaping blade (air, feed device (31) and flywheel (33) are driven by the PTO shaft (34) of the tractor body (1) via the universal joint (36), (36) is a chute for feeding the small pieces of noise into the wagon (2), and a guide plate is attached to the tip of the chute so that it can be adjusted freely. .

Figure 4 shows the electric circuit and each load sensor (181c1g
■The next stage of (21) is an amplifier (to) (39) (4α(
41) through a low-pass filter Ω3 (4Th (4
4) (45) is connected. The decoy is an adder that adds up the load from the left and right load sensors (18) on the front side, (4
'71 is an adder that adds the load signals from the rear left and right load sensors (0), and these additions @H(46) (4η
The signals are added by an adder (48), and the loaded weight of the wagon body @ excluding the tare weight is determined. (49) is a display that digitally displays the loaded weight; , (50j is a setter for setting the allowable load weight, (61) is a comparator that compares the allowable load W amount set by the setter Ql+oi and the load weight from the adder (48), and the load weight is determined by the load weight. When the permissible range is exceeded, a warning signal is output to the alarm device (52).The alarm device (52) issues a warning to the driver with audio, light, etc. (63) is the left front and rear load sensor t+81. An adder that adds the load signal from the G-kake, an adder that adds the load signal from the front and rear load sensors (21) on the right side of 54114,
The signals of these adders (53! [54) are sent to the arithmetic unit (5G
1 is output. The arithmetic unit (6θ is included from the microcomputer), and the addition signal from both adders (531+541) determines the X-axis (horizontal direction) and Y-axis (vertical direction) of the entire wagon body (up to) when loaded with noise fragments. It is configured to determine the position of the center of gravity G in the direction, and to issue an alarm signal to the alarm gap when the gravity center G position is within the shaded range in FIG.

In the above configuration, when noise is accumulated, the maize in the field is harvested and shredded by the Meisha-Hesta Pass, and then put into the wagon via the shoe (361) and loaded. J (221 is a wagon approximately 03
It is made to protrude further upwards to prevent noise fragments from scattering from the wagon body (c). When putting the noise fragments inside the wagon body 0 into a silo etc., use the hydraulic engine I.
Extend Nonda aQ and lift the wagon Q Enoki around the upper f@ part of the strut @ and rotate it like a temporary line.

However, if the tilt □□□ is up to the protruding state of 1, it will be an obstacle to input, so from the driver's seat (8) side, the arm (231
, remove it from the lower locking tool j2151, engage the upper locking tool (261K), and lower the tilter (22) below the upper end of the wagon (approximately 0).

When the noise fragments are loaded into the wagon main body rwr, a load signal appears on each load sensor (18) (1!2■ (21),
That is each adder f46) n7) f53) (54)
However, the influence of external vibration etc. is removed by a low-pass filter [42) (431 (441 (4) (5)).

Only the signal reflecting the actual loading M view is sent to the adder (461η
(translation) is input in (54). Adder +46) (47
1 adds the signals of the load sensors 08)■ and 0j (2)j separately before and after the loading, and then sends the added signals of the front and rear to the adder (4).
8) to obtain the actual loaded weight excluding the tare of the wagon body 0, and calculate this loaded weight using the comparator (51) and the setting device (
Compare with the allowable loading weight of 50). If the loaded weight exceeds the allowable weight, an alarm (62) is activated to warn of overloading.

Adders (53) (54) are equipped with load sensors (1) on the left and right sides.
8) Add the signals of (21) and input the added signal to the calculator (651). The cherry blossom position is calculated and it is determined whether it is within the shaded area shown in Fig. 5.If it is within the shaded area,
The alarm device (62) operates and issues an alarm. In other words, even if the loading capacity of the wagon body (total) is the same, if the wagon body (1) is biased to either the left or right side, when the tractor body (1) is tilted to the biased side, even a small tipping angle will cause the tractor to overturn. Sometimes. Therefore, the left and right, upper and lower positions of the center of gravity G are determined, and even if the loaded weight is within the permissible range, a warning is issued depending on the position of the center of gravity G, thereby further improving safety.

In the embodiment, a tipping wagon equipped with a tractor body (1) K is exemplified, but it goes without saying that other vehicles having a fixed wagon body on the hood can be similarly implemented. Further, one load sensor may be provided on each of the left and right sides.

According to the present invention, the load of the wagon is measured by the left and right load sensors, and when the load exceeds the allowable loading range, an alarm is issued, so overloading can be prevented. This significantly improves safety even though the wagon is mostly mounted on the hood of the vehicle body.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, with Fig. 1 being a side view of the whole, Fig. 2 being a perspective view showing the arrangement of the load sensor, Fig. 3 being a rear view of the arm locking part, and Fig. 4 being an electrical circuit block diagram,
FIG. 5 is an explanatory diagram of the operation. +1+...Tractor body, 12)...Bonnet, 0
...Tipping wagon, flll...Support frame, Hσ profit (2+)...Load sensor, H-maze harvester, ←6) f47) f481...Adder, (511...Comparator) , (52)...Alarm device. Procedural amendment (voluntary) 1 Indication of the case Patent application No. 47707 of 1982 2. Name of the invention Wagon loading and unloading warning device 3 The person making the amendment is drunk Relationship with Special Excerpt 11m people (105) Kubota Iron Works Co., Ltd. 4 Agents 577 5 Notification of Reasons for Refusal
'J Deletion 6 Target of amendment 7, Contents of amendment (1) In the first line of page 4 of Mingyu, the entire text "tapping" is corrected to "tipping." (2) In the 8th line of page 5, the phrase "speed 11υ" is corrected to read "feeding device 6υ." (3) On page 5, line H, the text ``1 universal joint (to)'' is corrected to ``universal joint μs''.

Claims (1)

[Claims] 1. In a vehicle in which a wagon body is provided on the hood of the vehicle body, and cargo is loaded onto the wagon body,
A wagon characterized in that a load sensor is provided between the wagon and a pair of left and right support frames that support the wagon, and an alarm is provided to issue an alarm when the loaded weight measured by these load sensors exceeds a load tolerance range. Load weight warning device.