JPS63154442A - Confirming device for engagement of posture keeping member for container mounted on loading vehicle - Google Patents

Abstract

PURPOSE:To confirm an engaging condition of a posture keeping member easily, by providing an confirmation member inclining in abutment against a posture confirmation member at the extreme end of a front arm for supporting the posture keeping member mounted on the front edge upper section of a container mounted on a loading vehicle. CONSTITUTION:A loading vehicle 1 on which a container 3 can be loaded performs loading and unloading of the container 3 by moving a lift arm 5 forwardly and backwardly by the actuation of a lift cylinder 8. There is provided a front arm 10 for keeping the posture of the container under loading and unloading for supporting a posture keeping member 12 at the front edge upper section of the container 3 through hook 11 comprising a fixed hook 11a and a sliding hook 11b. In the case, a confirmation member 18 across a space on the recessed side the fixed hook 11A is mounted thereon. The confirmation member 18 is such that its extreme end section moves when the posture keeping member 12 of the container 3 is brought into abutment against it, whereby the engagement of the posture keeping member 12 with the hook 11A can be confirmed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device for confirming insertion of a posture holding member in a container for loading onto a cargo handling vehicle, and more specifically, the present invention relates to a device for confirming insertion of a posture holding member into a container for loading onto a cargo handling vehicle. When being sold or sold,
The present invention relates to a cargo handling device equipped with a front arm that can maintain its posture.

[Prior art]

Some cargo handling vehicles 1 for transporting containers 3 shown in FIG. 3 are equipped with a cargo handling device 2 for loading and unloading containers onto and from the vehicle body. In order for the container 3 to be loaded and unloaded by the device 2, it is necessary to support the container, and support shafts 4 are protruded from the left and right sides of the container 3. Its support shaft 4
A pair of left and right lift arms 5 each having a support portion 6 are provided to receive the lift arm 5, and are attached to the vehicle body 7 via a lift 1-cylinder 8 and a support shaft 9 so as to be rotatable forward and backward.

A rotatable front arm 10 is provided at the front central position of the vehicle body 7 to maintain the attitude of the container 3 during forward and backward rotation. Its front arm lO is "<"
It is formed in the shape of a letter, and there is a hook 11 at the tip that can be opened and closed.
is attached, and the hook 11 supports a posture holding member 12 located at the upper front end of the container 3. The lower end of the front 7-m 10 is attached to the vehicle body 7 via a support shaft 13 that serves as the center of rotation, and the tip 14a of the piston rod of the auxiliary cylinder 14 is connected to the front of the support shaft 13. is swingably attached to the vehicle body 7, and the front arm 10 rotates as it expands and contracts. Therefore, when loading and unloading the container 3 onto the vehicle body 7, the container 3 moves forward or backward due to the rotation of the lift arm 5, but the front arm 10 rotates together with the lift arm 5 to maintain the horizontal posture of the container 3. hold it. That is, this cargo handling device 2
In this case, as will be described later, the front arm lO and the like form a parallelogram link, making it possible to maintain the attitude of the container 3.

[Problem that the invention seeks to solve]

In the cargo handling device 2 as described above, the front arm l
O can maintain the horizontal attitude of the container 3, and can load and unload the container 3 onto the vehicle body 7 in that attitude.

Incidentally, the operator who operates the lift arm 5 and the front arm 10 engages the lift arm 5 and the front arm 10 while looking at the support shaft 4, the lift arm 5, the posture holding member 12, and the hook 11 through the rear window glass 15 from the driver's seat of the cargo handling vehicle l. Also perform fitting work. At this time, as shown in FIG.
0, and it becomes impossible to clearly grasp the relative positional relationship between the posture holding member 12 and the recess 16. In order to fit the posture holding member 12 into the recess 16, the operator slightly rotates the front arm 10 and raises and lowers the fixed hook IIA, but there is a risk of making a mistake in determining whether the posture holding member 12 has been fitted. many. Therefore, undesirable situations may occur, such as closing the swinging hook 11B and raising the front arm 10 under the illusion that the container is inserted, or lowering the hook 11 even though it is already inserted, causing the container 3 to tilt. . In addition, since the width of the recess 16 relative to the diameter of the posture holding member 12 is narrow in order to improve the holding state, there is a problem in that the fitting operation becomes extremely difficult. Since the insertion work relies on visual inspection, the work requires time and effort, and the efficiency of the loading work is significantly reduced.

The present invention has been made to solve the above-mentioned problems.
The purpose is to provide an apparatus for confirming the insertion of a posture holding member in a container for loading onto a cargo handling vehicle, which can simplify the work of visually fitting the posture holding member into a hook and improve the efficiency of container loading work. .

[Means for solving problems]

The features of the apparatus for confirming insertion of a container posture holding member according to the present invention will be explained with reference to FIGS. 1 to 3. A removable container 3 is supported by a pair of lift arms 5 provided on the left and right sides of a vehicle body 7, and the lift arms 5 are swung back and forth by the operation of a lift cylinder 8, thereby becoming a cargo handling vehicle for loading and unloading the container 3. In order to maintain the attitude of the container 3 during loading and unloading, a front arm 10 supporting an attitude holding member 12 provided at the upper front end of the container is attached to the vehicle body 7.
is rotatably attached to. At the tip of the front arm 10, there is a fixed hook IIA into which the posture holding member 12 of the container 3 is sucked, and a swinging hook II which opens and closes the recess 16 to hold and release the posture holding member 12.
A recess 1 is provided on the side of the fixed hook IIA.
A confirmation member 18 is attached to cross the recess side space 17 so as to be tilted in contact with the posture holding member 12 fitted in the recess 6 .

[Function] When the attitude holding member 12 of the container 3 placed on the ground is held by the hook 11, the front arm 1O is rotated backwards to bring the hook 11 closer to the attitude holding member 12, for example, at the rear of the vehicle. The swinging hook 11B is rotated to open the hook, and the front arm 10 is gradually lowered to fit the posture holding member 12 into the recess 16 of the fixed hook IIA. When inserted, the posture holding member 12 comes into contact with the confirmation member 18 that crosses the recess side space 17, and the confirmation member tilts. When the operator confirms the tilting of the confirmation member, the swinging hook IIB is rotated to hold the posture holding member 12. If the posture holding member 12 is not fitted into the recess 16, the confirmation member 18 will not tilt, so the operator further lowers the front arm IO. On the other hand, recess 1
6, the front arm 10 will not be lowered any further and preparations for loading the container 3 can be made in a short time.

〔Effect of the invention〕

In order to maintain the attitude of the container during loading and unloading, a front arm that supports an attitude holding member provided at the upper front end of the container is rotatably attached to the vehicle body, and the tip of the front arm is , a fixed hook into which the attitude holding member of the container is fitted, and a swinging hook which opens and closes the recess to hold and release the attitude holding member, and on the side of the fixed hook, the attitude holding member fitted into the recess is provided. Since a confirmation member is attached that crosses the space on the side of the recess so as to come into contact with part +A and tilt, the operator can visually confirm whether or not the part has been inserted, reliably and quickly. Therefore, the fitting operation is significantly simplified, labor is saved, and working time is shortened, and the efficiency of loading the container in the cargo handling vehicle can be significantly improved.

〔Example〕

Hereinafter, the present invention will be explained in detail based on examples thereof.

FIG. 3 shows an example of a cargo handling vehicle 1 to which the present invention is applied, in which a container 3 that can be freely attached to and detached from a cargo handling device 2 can be loaded and unloaded onto a vehicle body 7. The vehicle body 7 has a pair of left and right lift arms 5 (
1llil (illustrated in the figure) is attached and supported so as to be rotatable forward and backward about a support shaft 9 fixed to the vehicle body 7.

The tip side of the main body of the lift arm 5 is bifurcated, and the base of the lift arm 5 forms a support part 6 that engages with a support shaft 4 extending to the left and right of the container 3 to support the container 3. .

The support shaft 4 is attached above the center of gravity of the container 3, and is mounted on the support part 6 during cargo handling operation. The lift arm 5 includes a lift cylinder 8 that is swingably attached to the vehicle body 7.
It is designed to be rotated forward and backward by the expansion and contraction movements of the robot. The tip of each piston rod is attached to both the left and right lift arms 5 via a pin shaft 20, and when the piston rod extends, the lift arm 5 rotates as shown by the two-dot chain line, and the front arm 10 described below rotates. The container 3 is maintained in a horizontal position and is unloaded onto the ground behind the vehicle body 7 as shown by the dashed line.

On the other hand, a front arm 10 is provided at the front central position of the vehicle body 7 to maintain the attitude of the container 3 during loading and unloading. It is attached to the vehicle body 7 via a support shaft 13, and has a posture holding member 1 located at the upper front end of the container 3.
I support 2. In addition, since the support shaft 13 is located below the container and the front arm 10 is formed in the shape of a "<", the rotation of the front arm 10 does not hinder the movement of the container 3. At the tip of the front arm 10, as shown in FIGS. 1 and 2, a posture maintaining member 1 is provided.
A hook 11 that can be opened and closed for supporting and releasing 2 is attached. The hook 11 is a fixed hook IIA
It consists of a swinging hook 11B and a hook cylinder IIIC that rotates the swinging hook IIB around a pin axis LID. In addition, the fixed hook IIA is attached to the front arm 10.
The recess 16 is brought into a closed state by rotation of the swing hook 1113.

Incidentally, the line connecting the support shafts 9 and 13 of the lift arm 5 and front arm 10 shown in FIG. 3 above, and
A line connecting the support shaft 4 and the posture holding member 12 forms two opposing sides of a parallelogram, and a line connecting the support shaft 13 and the posture holding member 12 connects the support shaft 9 and the support shaft 4. The lines form the other two sides of the parallelogram. Therefore, the lift arm 5 supports the container 3 and the front arm 1
0 holds the posture holding member 12, the container 3 is maintained in a desired horizontal posture, and at that time, the front arm 10 moves ftJ! along with the rotation of the lift arm 5. work

By the way, the front arm 1 shown in FIGS. 1 and 2
The fixed hook IIA fixed to the tip of the hook IIA is provided with a confirmation member 18 that crosses the lateral space 17 of the recess.

In this example, in the free state, it is in the posture shown by the solid line, and when it is inserted, it is in a position that is easy for the operator to see. Note that when the confirmation member 18 comes into contact with the posture holding member 12,
Since it is sufficient to confirm that the tip moves and fits into the recess 16, a flexible long ball or the like may be used. In this example, a long coil spring is used, and its base 18a is fixed to the lower part of the fixed hook IIA,
Furthermore, a colored marker 22 is attached to the tip. Therefore, when the posture holding member 12 fitted into the recess 16 crosses the recess side space 17 and comes into contact with the confirmation member 1, the confirmation member 18 is bent and tilted, and the marker 2 at the tip
2 is displaced. The shape is selected to be easy for the operator to identify, and another confirmation member 18 may be provided on the other side as shown by the dashed line in FIG. Note that a temporary spring may be used instead of the above-mentioned coil spring, and if a non-flexible ball is used, the base may be made tiltable via a helical spring or the like at the base.

On the other hand, the lift arm 5 in which the concave portion shown in FIG.
In the support part 6, a confirmation member 25 is attached so as to cross the support part lateral space 24 (see FIG. 5) located on the side of the support shaft 4. Therefore, when the support shaft 4 is engaged with the support part 6, the confirmation member 25 is bent by the contact with the support shaft 4, as shown in FIG. 6, and then returns to its original state when the engagement is released. There is.

The cargo handling device 2 provided in the cargo handling vehicle 1 configured as described above can load and unload the container 3 onto the vehicle body 7 in the following manner. Container 3 placed on the ground as shown in Figure 3
When loading the cargo handling vehicle 1 into the cargo handling vehicle 1, the lift cylinder 8 and the auxiliary cylinder 14 are extended, the lift arm 5 and the front arm 10 are rotated backwards, and the cargo handling vehicle 1 is placed in a nearly horizontal position as shown by the dashed line. make them retreat. The amount of extension of the lift cylinder 8 is adjusted as necessary to engage the support shaft 4 with the support portion 6. Since the support shaft 4 passes through the support part side space 24 and comes into contact with the confirmation member 25 as shown in FIG. 6, the confirmation member 25 is bent and tilted, displacing the marker 21.

The operator can know the engagement by the displacement of the mark 21. Subsequently, in order to fit the posture holding member 12 into the recess 16 shown in FIG. 7, the auxiliary cylinder 14 shown in FIG. 3 is extended. When the posture holding member 12 is fitted into the recess 16, the posture holding member 12 passes through the four-part side space 17 and comes into contact with the confirmation member 1B, so that the confirmation member 18 as shown in FIG.
bends and tilts, displacing the marker 22.

When the operator knows that the marker 22 has been displaced to the maximum as shown in FIG. 9, he extends the hook cylinder 11C and rotates the swinging hook 11B around the bottle axis ID. As a result, the recess 16 is closed and the posture holding member 12 is moved to the hook 11.
is maintained. This fitting forms a parallelogram link, so when the lift arm 5 is rotated forward in the direction of arrow 27 by the lift cylinder 8, the container 3 is horizontally rotated together with the forward rotation of the front arm 10, which is in a free state. It is loaded onto the vehicle body 7 while maintaining its posture.

In this way, the engagement of the support shaft 4 with the support part 6 and the fitting of the posture holding member 12 into the recess 16 can be confirmed by the displacement of the indicators 21 and 22, so that preparations for loading the container can be made. It is significantly simplified and can be made more efficient. In addition, after lowering the container 3 to the ground, opening the hook 11 and raising the front arm 10 a little, and removing the posture holding member 12 from the hook 11, move the vehicle body 7 forward slightly and move the support shaft 4 away from the support part 6. When removed, the bent confirmation member 18.25 returns to its original state. After confirming this, if the vehicle body 7 is moved forward, the container 3 is separated from the cargo handling device 2.

[Brief explanation of the drawing]

FIG. 1 is a side view of a front arm equipped with a confirmation member, FIG. 2 is a view taken along the line U-N in FIG. The figure is a side view of the upper end of the lift arm equipped with the recognition member, and Figure 5 is the V- of Figure 4.
FIG. 6 is a side view of the lift arm in which the support shaft is engaged with the support part; FIGS. 7 to 9 are diagrams of the operating state of the front arm equipped with a confirmation member; FIG. 10 is a state diagram of the front arm rotated backwards as seen through the window. 1-Cargo handling vehicle, 3-.-Container, 5-Lift arm,
7-- Vehicle body, 8- Lift cylinder, 10- Front arm, IIA-- Fixed hook, 1113... Swinging hook, 12-- Posture holding member, 16-- Recess, 17
・-Concave lateral space, 18-Confirmation member. Patent applicant Kyokuto Kaihatsu Kogyo Co., Ltd. Agent Patent attorney Katsutoshi Yoshimura (and one other person) T, 2rA ■ Figure 4 ■ - Figure 5 Figure 6 Figure 9 Figure 10

Claims (1)

[Claims] (1) In a cargo handling vehicle, a removable container is supported by a pair of lift arms installed on the left and right sides of the vehicle body, and the lift arm is swung back and forth by the operation of a lift cylinder to load and unload the container. In order to maintain the attitude of the container inside, a front arm that supports an attitude holding member provided at the upper front end of the container is rotatably attached to the vehicle body. A fixed hook into which the member is fitted, and a swinging hook which opens and closes the recess to hold and release the posture holding member, and on the side of the fixed hook, the posture holding member fitted into the recess. 1. An apparatus for confirming insertion of a posture holding member of a container for loading onto a cargo handling vehicle, characterized in that a confirmation member is attached to cross the lateral space of the concave portion so as to contact and tilt the confirmation member.