KR100707151B1 - Steering system for cart - Google Patents

Abstract

The present invention relates to a crop transport cart, in particular, to the inside of the fixed tube fixed to the support tube, the upper side is connected to the support piece, the lower side is coupled to the rotating tube coupled to the pulley for rotation and the upper side of the rotating tube support Attach the connecting piece connected to the lower part with the surface of one side, and combine the fixed shaft coupling the fixing pin to one side, and form the insertion groove in the lower part of the handle that is coupled to the fixed shaft, and attach the hook piece to the upper part of the insertion groove. Locking rod is fixed to the rotating piece formed with a locking hole in the upper side and the support shaft attached to the fixed plate for supporting the wheel in the lower portion into the inside of the rotating tube, and the locking rod inserted into the locking hole is coupled with the elastic member through the socket of the connecting piece. If the locking rod is inserted into the locking hole formed on the rotating piece of the support shaft by As the shaft is integrated, the pulley and the wheel can be rotated, and when the locking rod is separated from the locking hole, only the rotating tube can be rotated so that the pulley and the wheel cannot be rotated. Combined with the rod for easy flow, the middle part has a bullet piece loosely coupled to the extension of the socket so that the locking rod is normally in the locking hole. to provide.

 Steering device

Description

Bi-Directional Steering System for Crop Transport Carts {STEERING SYSTEM FOR CART}

1 is a view showing a two-way steering device according to the present invention

Figure 2 is an enlarged view showing the configuration of one side drive unit of the present invention wagon bidirectional steering device

Figure 3 is an enlarged view showing the configuration of the other side driving unit of the present invention cart bidirectional steering device

Figure 4 is a view showing for explaining the operation of the present invention cart bidirectional steering

<Code Description of Main Parts of Drawing>

101-support tube 102-fixing tube

103-fixing plate 104-insert hole

105-support shaft 106-turn

107-locking hole 108-pulley

109-wheel 110-connector

111-rotator 112-support

113-connection 114-fixed shaft

115-pinning pin 116-wire

121-socket 122-extension

123-locking rod 124-tank

125-Push 131-Operation

132-Flow Shaft 133-Bracket

134-Through 135-Workout

136-support shaft 137-lift shaft

138-elastic member 139-elevation

141-support 142-connection pin

143-Stopper 151-Grip

152-insertion groove

The present invention relates to a crop transport cart, in particular, to the inside of the fixed tube fixed to the support tube, the upper side is connected to the support piece, the lower side is coupled to the rotating tube coupled to the pulley for rotation and the upper side of the rotating tube support Attach the connecting piece connected to the lower part with the surface of one side, and combine the fixed shaft coupling the fixing pin to one side, and form the insertion groove in the lower part of the handle that is coupled to the fixed shaft, and attach the hook piece to the upper part of the insertion groove. Locking rod is fixed to the rotating piece formed with a locking hole in the upper side and the support shaft attached to the fixed plate for supporting the wheel in the lower portion into the inside of the rotating tube, and the locking rod inserted into the locking hole is coupled with the elastic member through the socket of the connecting piece. If the locking rod is inserted into the locking hole formed in the rotating piece of the support shaft by As the shaft is integrated, the pulley and the wheel can be rotated, and when the locking rod is separated from the locking hole, only the rotating tube can be rotated so that the pulley and the wheel cannot be rotated. It is combined with the rod for easy flow, and the middle part has a bullet piece loosely coupled to the extension part of the socket so that the locking rod is normally in the locking hole so that the handle can be separated from the locking hole by inserting the handle into the fixed shaft. Fixed shaft wheels with handles become rear wheels to follow only the front wheels. Fixed shaft wheels without handles can be steered with front wheels to achieve very accurate and stable steering effects. Active use of the product can increase work efficiency. It said invention relates to a wire connecting the pulleys on both sides of the connector bidirectional steering of the agricultural transport wagon to obtain a beautiful appearance because the internal passage provided so as to opposite sides of the device.

Conventional crop transport carts include, for example, Patent Application No. 26699, "Steering device for crop transport carts" (the same applicant).

Although the above described carts have solved a relatively large number of problems, some problems have been found and this has led to the filing of the present invention.

The first problem of the prior art is that before and after are distinguished.

The front wheel of the prior art can rotate with the pulley to allow steering, while the rear wheel is connected to the pulley and the bearing so that it cannot be rotated and can only go straight.

That is, when the operator adjusts the direction after combining the rear connection pipe with the rear connection pipe of the rear wheel, the driving pulley is rotated to move the wire, and by the movement of the wire, the front driven pulley rotates to adjust the direction of the wheel. Will be.

However, depending on the environment of the work site, there is a case where the space cannot be changed due to the narrow space, and there are times when the road inevitably goes backward.

In this case, the operator will try to join the front connection pipe to the front connection pipe to go backwards backwards.

However, the above situation is very difficult to drive the cart because the front wheel is not steering, the rear wheel is steering.

Therefore, the wagons sometimes did not return to the normal road, but the damage was caused to the crops by going up the toads, and the air supply was also a problem that the wagons were turned over due to the driving circumference.

In addition, the second problem of the prior art is that the wires connecting both pulleys are exposed to the outside.

In other words, as the wires are exposed to the outside as described above, there is a problem that the crops come in contact with the moving objects and damage the crops, and when the external objects are caught, the wires are separated from the pulleys and the auxiliary pulleys. Had problems.

In addition, since the outer ear is exposed to the outside, it has a problem that is not good in appearance.

The purpose of the present invention for solving and solving these conventional problems,

The wheel of the fixed shaft combined with the handle becomes the rear wheel without any distinction between the front and the rear, and follows the front wheel only, and the wheel of the fixed shaft without the combined handle becomes the front wheel and can be steered to obtain a very accurate and stable steering effect. Active use of the wagon according to the situation of the site can double the work efficiency and provide the purpose of obtaining a beautiful appearance.

In order to achieve the above object, the present invention,

Inside the fixed tube fixed to the support tube, the upper part is connected to the support piece, and the lower part is connected to the rotary tube which is combined with the pulley for rotation, and the connecting piece connected to the lower part is attached to the support piece surface of the upper part of the rotary tube. And a fixed shaft coupling the fixing pin to one side, and an insertion groove is formed at the lower portion of the handle coupled with the fixed shaft, and a hook piece is attached to the upper portion of the insertion groove to fix the rotating piece having a locking hole at the upper side. The lower side portion is coupled to the support shaft with a fixed plate for supporting the wheel into the inside of the rotary tube and the locking hole formed on the rotating piece of the support shaft by engaging the locking rod inserted into the locking hole coupled with the elastic member through the socket of the connection piece When the locking rod is inserted, the pulley and the wheel can be rotated while the rotary tube and the support shaft are integrated. When the locking rod is separated from the locking hole, only the rotary tube can be rotated so that the pulley and the wheel cannot be rotated, the upper part is formed with a pressing part, the lower part is coupled with the locking bar for flow, and the middle part is an extension of the socket. If the locking rod is normally provided in the locking hole and the handle is inserted into the fixed shaft so that the locking rod can be separated from the locking hole, the objective of the present invention can be achieved.

The configuration of the present invention will be described in detail with reference to the accompanying drawings.

Rotating tube 111 coupled to the inside of the fixed tube 102 fixed to the support tube 101 is connected to the support piece 112 on the upper side and the pulley 108 to rotate on the lower side,

A fixing shaft 114 to which the connecting piece 113 connected to the lower part is attached to the support piece 112 surface of the upper part of the rotary tube 111 and the fixing pin 115 is coupled to one side thereof;

A handle 151 having an insertion groove 152 inserted into the fixing pin 115 of the fixed shaft 114 at a lower side thereof, and a hook piece 153 attached to the upper portion of the insertion groove 152;

The support shaft is coupled to the inside of the rotary tube 111 is fixed to the rotating piece 106, the locking hole 107 is formed on the upper side and the fixing plate 103 for supporting the wheel 109 on the lower side 105,

When inserted into the locking hole 107 formed in the rotating piece 106 of the support shaft 105, the rotary tube 111 and the support shaft 105 are integrated to rotate the pulley 108 and the wheel 109 In this case, the socket coupled to one side of the connecting piece 113 in order to prevent the rotation of the pulley 108 and the wheel 109 can be rotated because only the rotary tube 111 can be rotated when the locking hole 107 is separated from the locking hole 107. Locking rod 123 is coupled to the elastic member and inserted into the locking hole 107 to (121),

When the locking rod 123 is normally in the locking hole 107 and the handle 151 is inserted into the fixed shaft 114, the pressing part 125 is formed at the upper side so that the locking rod 123 can be separated from the locking hole 107. The lower part is coupled to the locking rod 123 and flowable, and the middle part is provided with a bullet piece 124 loosely coupled to the extension piece 122 of the socket 121.

And, when the handle 151 is separated from the fixed shaft 114, the upper portion is positioned to the upper side of the hook piece 153 so as to move upward by the hook piece 153, and the middle portion of the bracket 133 of the support tube 101. It is coupled to the through-hole 134 formed in the lower portion is the operating piece 131 is coupled to the flow shaft 132,

The lifting piece 139 coupled to the flow shaft 132 of the operating piece 131 and coupled by the lifting shaft 137 while being rotated about the support shaft 136 by the lifting movement of the flow shaft 132. And exercise piece 135 to elevate,

An elastic member 138 that is carried out between the support shaft 136 and the lifting shaft 137 so that the movement piece 135 makes a snap movement;

The stopper 143 coupled to the elevating piece 139 which is lifted by the exercise piece 135 and being lifted by receiving a guide of the support 141 attached to the support pipe 101 and being attached by the connecting pin 142. ,

If the stopper 143 is lowered and inserted, the fixing plate 103 is fixed, and when the stopper 143 is lifted and separated, the fixing plate 103 is formed at one side of the fixing plate 103 so that the fixing plate 103 can rotate. ) Was further provided.

Referring to the operation of the present invention as described above is as follows.

1 shows a state in which the handle 151 is coupled to the fixed shaft 114 of one side of the wagon steering device of the present invention, and the handle 151 is not coupled to the fixed shaft 114 of the other side at the same time. .

2 is an enlarged view of the state in which the handle 151 is coupled to the fixed shaft 114, and FIG. 3 is an enlarged view of the state in which the handle 151 is not coupled.

That is, the present invention is a state in which the fixed shaft 114 to which the handle 151 is coupled to the rear is able to drive and the other side is always the front.

First, the usual state in which the handle 151 of FIG. 3 is not coupled is inserted into the locking hole 107 of the rotating piece 106 in which the locking rod 123 is coupled to the support shaft 105 by elasticity of the elastic member. It keeps being in a state.

In addition, the bullet piece 124 coupled to the lower portion of the locking rod 123 is also located in the state in which the pressing portion 125 is close to the fixed shaft 114.

In addition, the movement piece 135 which is pushed by the bullet piece 124 is also rotated about the support shaft 136 and positioned upward, and the lifting piece 139 and the stopper 143 are also positioned upward. Becomes

That is, in the above state, since the locking rod 123 is inserted into the locking hole 107, the locking rod 123, the socket 121, the connecting piece 113, the support piece 112, and the fixed shaft 114 are provided. The rotary tube 111, the pulley 108, the support shaft 105, the fixing plate 103, the wheel 109, and the like are united.

Therefore, when the pulley 108 is rotated by the wire 116, the rotating tube 111 and the support shaft 105 can be rotated inside the fixed tube 102, and at the same time, the locking rod 123, the socket 121, As the connecting piece 113, the support piece 112, the fixing shaft 114, the fixing plate 103, etc. are rotated, as shown in FIG. 4, the wheel 109 can be rotated to steer.

Meanwhile, as shown in FIG. 2, when the handle 151 is coupled to the fixed shaft 114, the insertion groove 152 formed in the lower portion of the handle 151 is inserted into the fixing pin 115 of the fixed shaft 114. The pressing part 125 of 124 is pressed.

When the pressing portion 125 is pressed, the lower portion of the bullet piece 124 is pulled outward by pulling the locking rod 123 outward by the lever action of the extension piece 122 coupled to the middle portion of the bullet piece 124. .

Therefore, the locking rod 123 is in a state of being separated from the locking hole 107 of the rotating piece 106 while compressing the elastic member inside the socket 121.

In addition, the bullet piece 124 is pushed out of the movement piece 135 which is in contact with the lower end as it opens to the outside and the movement piece 135 is rotated in the downward direction about the support shaft 136 lifting shaft 137 ) And the flow shaft 132 is lowered.

At this time, the movement piece 135 is held by the snap member by the elastic member 138 that is installed between the support shaft 136 and the lifting shaft 137, and then retains its position.

By the lowering of the flow shaft 132, the operating piece 131 coupled to the end of the flow shaft 132 is lowered while being guided by the through-hole 134 formed in the bracket 133 and the operating piece 131 The upper side of the handle 151 is positioned over the hook piece 153 attached to.

Then, the lifting piece 139 is also lowered by the lowering of the lifting shaft 137 to lower the stopper 143 connected to the connecting pin 142.

In addition, the stopper 143 is lowered while being guided by the support 141 is inserted into the insertion hole 104 of the fixing plate 103.

As described above, the state in which the locking rod 123 is separated from the locking hole 107 is maintained and the stopper 143 is inserted into the insertion hole 104 by coupling the handle 151 to the fixed shaft 114. Is held at this time, the handle 151, the fixed shaft 114, the connecting piece 113, the socket 121, the locking rod 123, the support piece 112, the rotary tube 111, the pulley ( Only 108 are rotatable and the wheel 109 is unable to steer.

Therefore, when the handle 151 is rotated to steer, the connecting shaft 113 rotates while the fixed shaft 114 rotates, and the support piece 112 and the rotary tube 111 attached to the lower side of the connecting piece 113 are rotated. This rotation causes the pulley 108 to rotate.

In addition, as the wire 116 rotates by the rotation of the pulley 108, the front pulley 108 rotates, and the rotation of the front pulley 108 enables steering of the wheel 109 as described above. Therefore, smooth direction change is possible.

On the other hand, while working with a wheelbarrow to work in order to meet the conditions of the workplace occurs when the bar occurs, in the present invention by changing only the handle 151 can be moved forward as it is.

That is, when the handle 151 of FIG. 2 is moved upward to change the handle 151, the hook piece 151 attached to the handle 151 comes into contact with the upper side of the working piece 131 which is waiting in advance. do.

In addition, the operation piece 131 moves the movement piece 135 to its original position while moving upwardly together with the hook piece 153, and the lifting piece 139 and the stopper by the movement of the movement piece 135 ( 143) to the original position.

In addition, the operation piece 131 passes through the through hole 134 of the bracket 133 and gradually opens to the outside, and returns to the initial state without being interfered with the hook piece 153.

In addition, the bullet piece 124 held by the handle 151 is also returned to its original position, and the locking rod 123 is also returned to the original position by the elastic member inside the socket 121 and inserted into the locking hole 107. Will be maintained.

Therefore, when the handle 151 is removed, the wheel 109 can be steered as shown in FIG. 3.

Then, when the handle 151 is coupled to the fixed shaft 114 of the other side, the locking rod 123 and the stopper 143 are separated and inserted into the locking hole 107 and the insertion hole 104, respectively, while steering the wheel. At the same time, only the rotation of the pulley 108 is possible, so that the steering of the pulley 108 of one side can be performed.

Meanwhile, as shown in FIG. 3, the wire 116 connecting the two pulleys 108 of the present invention can be passed through the connection pipe 110 to prevent contact with other objects and provide a beautiful appearance. Will be.

In this invention, without the distinction between the front and the rear, the fixed shaft wheel combined with the rear wheel becomes the rear wheel and follows only the front wheel, the fixed shaft wheel without the handle is combined with the front wheel can be steered, very precise and stable steering Effectiveness can be obtained and active use of the wagon according to the situation of the work site can increase work efficiency, and a beautiful appearance can be obtained because the wires connecting the pulleys on both sides are installed through the connection pipes on both sides. Has a useful effect.

Claims (3)

A rotary tube coupled to the inside of the fixed tube fixed to the support tube, connecting the support piece to the upper portion, and the pulley coupled to the lower portion for rotation; A fixed shaft which attaches a connecting piece connected to the lower part to the support piece surface of the upper part of the rotary tube and has a fixing pin coupled to one side thereof; A handle having an insertion groove formed at a lower side thereof and inserted into the fixing pin of the fixed shaft, and a hook portion attached to an upper portion of the insertion groove; A support shaft coupled to the inside of the rotary tube to fix a rotating piece having a locking hole formed at an upper side thereof, and a fixing plate supporting a wheel at a lower portion thereof; When inserted into the locking hole formed in the rotating shaft of the support shaft, the rotary tube and the support shaft are integrated to allow the rotation of the pulley and the wheel, and when the deviation from the locking hole, only the rotary tube can be rotated. A locking rod inserted into the locking hole coupled with the elastic member to a socket coupled to one side of the connecting piece to prevent rotation; When the locking rod is normally in the locking hole and the handle is inserted into the fixed shaft, the upper part is provided with a pressing part so that the locking part can be separated from the locking hole, the lower part is coupled with the locking bar for flow, and the middle part is loosely coupled with the extension of the socket. Bidirectional steering device for a crop transport cart, characterized in that provided. The method of claim 1, When the handle is separated from the fixed shaft to the upper side is moved to the upper side by the hook piece is located in the upper portion of the hook piece and the middle portion is coupled to the through-hole formed in the bracket of the support pipe and the lower portion is coupled to the flow shaft, An exercise piece for engaging the lifting shaft coupled to the lifting shaft while engaging the flow shaft of the working piece and rotating about the support shaft by the lifting movement of the flow shaft; An elastic member which is installed between the support shaft and the lifting shaft so that the movement piece is a snap movement; A stopper for lifting and lowering by being guided by a support pin attached to the support pipe by a lifting pin which is lifted by the lifting piece; When the stopper is inserted by lowering the fixed plate is fixed, when the stopper is lifted off the bidirectional steering device for a crop transport cart, characterized in that it further comprises an insertion hole formed in one side of the fixed plate to allow the fixed plate to rotate. delete

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