JP2548356Y2 - Container lashing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a container securing device for securing a compactor to a container.

[Prior art] Conventionally, a container is attracted to a compactor, which is a container for receiving and storing garbage, and a receptacle of the container is adapted to an outlet of the compactor. The refuse in the compactor is packed into a container by a pressure plate, and the refuse is transported by the container (see Japanese Patent Publication No. 62-41).

Conventionally, as means for securing the container to the compactor, a hook member is projected forward from each of the left and right sides of the compactor, and each hook member is opened and closed by each hydraulic cylinder provided on each of the left and right sides of the compactor. It has been practiced to engage with a metal protrusion protruding from the left and right sides of the rear part and tighten the metal.

[Problems to be solved by the invention]

However, such a conventional container tying device requires a drive device such as two hydraulic cylinders corresponding to each of the hooks on the left and right sides of the compactor.

The present invention eliminates such disadvantages, and aims to provide an inexpensive container securing device that can secure a container by using only a single driving device.

[Means for solving the problem]

In order to solve the above-mentioned problem, the present invention is directed to a long hole of each of the metal fittings provided in the container drawn toward the front end of a shaft protruding forward of the compactor and rotatably supported with respect to the compactor. A twist lock, which can be inserted and removed, is provided side by side through a link mechanism and a single driving device, and is provided between the twist locks so as to be movable in the front-rear direction with respect to the compactor, and a contact portion for pushing back the container. And an arm having a hook engageable with an engaging pin provided on the container.

[Action]

According to the present invention, when the container is fastened to the compactor, first, the shaft of each twist lock is in a predetermined rotation position, that is, the engaging portion of each twist lock is the length of the receiving member of the container. In a state where the container is oriented so that it can be inserted into and removed from the hole, the container is drawn by the container drawing device from the front of the compactor to a predetermined position. As a result, the engagement portion of each twist lock is inserted into the long hole of the metal fitting of the container.

Next, the driving device is operated, whereby the link mechanism is driven, and the shaft of each twist lock is rotated substantially 90 ° in conjunction with the link mechanism. As a result, the rear end surface of the engagement portion of each twist lock engages around the long hole of the metal fitting of the container, and fastening of the container to the compactor is completed.

Then, when the container is released from the compactor and the container is released, the driving device is operated again, whereby the link mechanism is driven, and the shaft of each twist lock is driven by the link mechanism. Are rotated about 90 ° in opposite directions (the same direction is also possible). As a result, the engagement of the rear end face of the engagement portion of each twist lock that has been engaged around the long hole of the container fitting is released, and the engagement portion of each twist lock is disengaged from the long hole of the container fitting. The container is detachable, and the container can be separated from the compactor by the container pulling device.

Thus, according to the present invention, the container is secured and released according to the rotation state of each twist lock,
The rotation of each twist lock is linked by a link mechanism,
Since the link mechanism is driven by a single drive,
Unlike the above-mentioned conventional container securing device, only one driving device is required, and the cost is low.

〔Example〕

 Hereinafter, the present invention will be described based on an embodiment shown in the drawings.

FIG. 1 shows a container securing device a according to an embodiment of the present invention.
FIG. 2 is a perspective view taken along the line II-II in FIG. 1, FIG.
FIG. 4 is a view taken in the direction of arrows III-III in FIG. 2, FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2, FIG. FIG. 7 is a vertical sectional view of a main part of the container pulling device b, as viewed in the direction of arrows VI-VI in FIG.

In these drawings, reference numeral 1 denotes a compactor which is a container for receiving and storing dust, and the container 2 is drawn from the right side in FIGS. When the container 2 is fixed to the compactor 1, the compactor 1
The dust inside the compactor 1 is packed into the container 2 by a pressure plate (not shown) inside. The compactor 1 is supported by front supports 3a and 3b and intermediate supports 4a and 4b as shown in FIGS.

A container transfer device 5 is provided in front of the compactor 1 as shown in FIGS. The container transfer device 5 moves a plurality of containers 2 placed thereon sequentially in a direction orthogonal to the compactor 1 so as to face each other.

Further, at an appropriate position on the rear lower surface of the container 2, as shown in FIG. 1, two metal fittings 6, 7 are provided, and an engaging pin 9 for pulling is provided between the metal fittings 6, 7 via a bracket 8. ing. As shown in FIG. 5, each of the metal fittings 6 and 7 has a front-rear direction (a direction in which the container 2 is pulled and separated).
Slots 10 and 11 are provided respectively toward. Then, as shown in FIG. 5, inclined portions 12, 13 described later are formed at appropriate positions around the elongated holes 10, 11 of the metal fittings 6, 7 by cutting or the like. 1 and 6, reference numeral 14 denotes wheels provided on the lower surface of the container 2.

And the front side of the compactor 1 (right side in FIG. 1)
In the lower part of the figure, a container securing device a and a container pulling device b in a narrow sense constituting the present invention are provided.

First, the container securing device a in the narrow sense will be described. As shown in FIGS. 1 to 4, the container securing device a comprises two (shafts 15 and 16 and engaging portions 17 and 18), respectively. The number is not particularly limited in the invention.) Twist locks 19 and 20 and shaft 1 of each twist lock 19 and 20
It comprises a link mechanism 21 for interlocking the turning operations of 5 and 16, and a hydraulic cylinder 22 as a single driving device for driving the link mechanism 21.

In the embodiment shown in the drawings, the shafts 15 and 16 are rotatably supported by brackets 24 and 25 on cross beams 23 provided between the front columns 3a and 3b, respectively, as shown in FIGS. , Protruding forward of the compactor 1. In FIG. 3, reference numerals 26 and 27 denote retaining members fixed to the shafts 15 and 16 for preventing the shafts 15 and 16 from coming off in the axial direction, and reference numerals 28, 29, 30, and 31 denote the same in the axial direction of the shafts 15 and 16 respectively. It is a nut that prevents slippage.

The engaging portions 17, 18 are fixed to the front ends of the shafts 15, 16, respectively. The engaging portions 17 and 18 are configured so that the shape viewed from the axial direction is rectangular (an elliptical shape or the like is possible) in accordance with the size of the long holes 10 and 11 of the metal fittings 6 and 7 of the container 2. When the shafts 15 and 16 are in the rotating positions shown in FIGS. 1 to 5, the engaging portions 17 and 18 are pulled by the container 2 with respect to the compactor 1 and separated from the compactor 1. 7 can be inserted into and removed from the long holes 10 and 11, and when the shafts 15 and 16 are rotated 90 ° after the insertion, the rear end faces 17a and 18a of the engaging portions 17 and 18 It is designed to engage around the long holes 10, 11. In addition, receiving brackets 6,7
The inclined portions 12, 13 around the long holes 10, 11 are thus:
Guides the rear end faces 17a, 18a of the engaging portions 17, 18 when the shafts 15, 16 rotate 90 ° when the engaging portions 17, 18 are inserted into the elongated holes 10, 11 of the receiving members 6, 7. As a result, the metal fittings 6 and 7 are slightly pulled (for example, several millimeters) to
Is slightly attracted to the compactor 1. However, in the present invention, it is not always necessary to form such inclined portions 12 and 13.

As shown in FIGS. 3 and 4, the link mechanism 21 is a lever fixed to the rear end of the shaft 15 by a key 32.
33, a lever 35 fixed to the rear end of the shaft 16 by a key 34, and a connecting rod 40 of which both ends are pivotally supported 38, 39 at the ends of the levers 33, 35 via clevises 36, 37, respectively. , And the rotating motions of the shafts 15 and 16 are interlocked.

Further, the hydraulic cylinder 22, which is the single driving device,
As shown in FIGS. 3 and 4, the cylinder body 22a is tiltably supported by a bracket 42 on a mounting base 41 fixed to the front support column 3e and the cross beam 23 of the compactor 1, and the tip of the rod 22b. Is supported by the end of the lever 33 via a clevis 43. As shown in FIG. 4, the lever 33 is extended and contracted by the rod 22b of the hydraulic cylinder 22.
Is operated, whereby the shafts 15, 16 of the twist locks 19, 20 rotate in both forward and reverse directions in conjunction with each other. Note that another actuator may be used instead of the hydraulic cylinder 22.

Next, the container pulling device b will be described. As shown in FIGS. 1, 6, and 7, the container pulling device b is provided so as to be movable in the front-rear direction with respect to the compactor 1. An arm 51 having a contact portion 50 for pushing back, a hydraulic cylinder 52 as a driving device for moving the arm 51 in the front-rear direction with respect to the compactor 1, and a shaft 53 supported by a front end of the arm 51 by a shaft 53. A return force that can be engaged with the engagement pin 9 for pulling the container and returns to a rotational position (a position indicated by an imaginary line in FIG. 7) separated from the engagement pin 9. Hook 54
And a pivoting position (FIG. 7) in which the hook 54 is engaged with the engaging pin 9 against the returning force according to the pivoting position. And a cam 55 which restricts the hook 54 to a pivoting position (the position indicated by the imaginary line in FIG. 7) in which the hook 54 is disengaged from the engaging pin 9 and the cam 55. The motor 55 is a driving device for rotating the arm 55 with respect to the arm 51.

The arm 51 is formed in a tubular shape, is inserted into a guide tube 57 fixed to a lower portion on the front side of the compactor 1, is slidably guided by the guide tube 57, and is movable in the front-rear direction.

The contact portion 50 is provided at an upper front portion of the arm 51 so as to contact the bracket 8 of the container 2 and push back the container 2. In FIG. 7, 58 is
The proximity switch detects that the arm 51 has moved forward until the hook 54 can be engaged with the engagement pin 9 of the container 2.

Further, the hook 54 is rotatably supported in a vertical plane by a shaft 53, and the hook 54 is provided with the restoring force by its own weight. You may give it.

Further, the cam 55 has a fan shape and is fixed to a shaft 60 rotatably supported by a bracket 59 fixed to the arm 51. A toothed belt 63 is wound around a pulley 61 fixed to the shaft 60 and a pulley 62 fixed to the output shaft of the motor 56.

In FIG. 7, reference numeral 64 denotes a stopper for preventing the hook 54 from deviating from the operation range of the cam 55 when the hook 54 returns. In FIG. 7, reference numeral 65 denotes a limit switch for detecting whether or not the hook 14 is at a rotational position where the hook 14 engages with the engaging pin 9 (a position indicated by a solid line in FIG. 7). Although not shown in the drawing, a detector for detecting the rotational position of the cam 55 is provided.

Next, the operation of the container lashing device a according to the present invention having the above configuration will be described.

When securing the container 2 to the compactor 1, first, as shown in FIG. 1, the rod 22b of the hydraulic cylinder 22 is shortened (in a state shown by a solid line in FIG. 4), and each twist lock
The engagement portions 17, 18 of 19, 20 are elongated holes 10, 7,
The container 2 is drawn from the front of the compactor 1 to a predetermined position in a state where the container 2 is oriented so that it can be inserted into and removed from the container 2.

The drawing of the container 2 is performed by the container drawing device b as follows.

That is, first, as shown in FIG. 1, while the arm 51 is at a predetermined rear position with respect to the compactor 1,
In a state in which the container 54 has returned to the rotating position (the position indicated by the imaginary line in FIG. 7) which has been disengaged from the engaging pin 9 for pulling the container 2 (hereinafter, referred to as a “returned state”),
Is disposed at a predetermined position in front of the compactor 1 (the position indicated by the solid line in FIG. 6). Next, the arm 51 is moved forward by the operation of the hydraulic cylinder 52, the operation of the hydraulic cylinder 52 is stopped by the signal of the proximity switch 58, and the arm 51 stops at the predetermined front position as shown by the solid line in FIG. I do. Simultaneously with the stop of the arm 51, the motor 56 is operated by the signal of the proximity switch 58, and the cam 55 is rotated to the position shown by the solid line in FIG. The rotation position (the position shown by the solid line in FIG. 7) is restricted to engage with the engagement pin 9 of the container 2. And
The hydraulic cylinder 52 is actuated by a signal from the limit switch 65 generated by this restriction, and the arm 51 is moved rearward to a predetermined rear position as shown by an imaginary line in FIG.
In the middle of the rearward movement of the arm 51, the hook 54 becomes the container 2
And the container 2 is drawn to the compactor 1 to a predetermined position as shown by the imaginary lines in FIG. 6 and the imaginary lines in FIG. 2, and the drawing of the container 2 is completed. In the drawing completion position, the receptacle of the container 2 is adapted to the outlet of the compactor 1.

As a result of the container 2 being drawn to the compactor 1 from the front in this way, as shown by the imaginary lines in FIG. 2 and the imaginary lines in FIG. 3, the engagement portions 17, 18 of the twist locks 19, 20 The metal fittings 6 and 7 are inserted into the long holes 10 and 11 respectively.

Next, the rod 22b of the hydraulic cylinder 22 is extended as shown by the imaginary line in FIG. 4, whereby the link mechanism 21 is driven, and the shafts 15 and 16 of the twist locks 19 and 20 are linked by the link mechanism 21. 90 degrees. as a result,
Rear end faces 17a, 18a of engaging portions 17, 18 of each twist lock 19, 20
Engages around the long holes 10, 11 of the metal fittings 6, 7 of the container 2,
The securing of the container 2 to the compactor 1 is completed, and dust is packed into the container 2 from inside the compactor 1. In addition,
In the case of the embodiment shown in FIG.
Since the inclined portions 12 and 13 are formed around the circumferences 0 and 11, the container 2 is slightly drawn to the compactor 1 when the shafts 15 and 16 are rotated by 90 ° as described above, so that the container 2 is more reliably. The container 2 is secured.

Then, when the container 2 is released from the compactor 1 after the container 2 is filled with dust, the rod 22b of the hydraulic cylinder 22 is shortened as shown by a solid line in FIG. The mechanism 21 is driven in the opposite direction, and each of the twist locks 19, 2 is driven by the link mechanism 21.
The 0 shafts 15 and 16 are rotated 90 ° in opposite directions in conjunction with each other. As a result, the engagement portions 17, 18 of the respective twist locks 19, 20 engaged around the elongated holes 10, 11 of the metal fittings 6, 7 of the container 2
The engagement of the rear end faces 17a, 18a is disengaged as shown by the imaginary lines in FIG. 2 and the imaginary lines in FIG. The container 2 is released from the long holes 10 and 11 to release the securing of the container 2, and then the container 2 is separated from the compactor 1.

The separation of the container 2 is performed by the container pulling device b as follows.

That is, first, the cam 55 is rotated by the motor 56 to the position shown by the imaginary line in FIG. 7, whereby the hook 54 is disengaged from the engaging pin 9 of the container 2 (the imaginary line in FIG. 7). To the position shown by)
The arm 51 is moved forward to a predetermined front position by the hydraulic cylinder 52. During the forward movement of the arm 51,
Since the hook 54 moves relatively forward with respect to the engaging pin 9 from the state in which the hook 54 is engaged with the engaging pin 9 of the container 2, the prevention of the return of the hook 54 by the cam 55 is released.
The hook 54 is moved by the return force to the engagement pin 9 of the container 2.
(The position shown by the imaginary line in FIG. 7)
Return to. Also, during the forward movement of the arm 51,
The contact portion 50 of the arm 51 for pushing back the container comes into contact with the bracket 8 of the container 2, the container 2 is moved forward to a predetermined front position, and the container 2 is separated from the compactor 1. The operation of rotating the cam 55 to the position shown by the imaginary line in FIG. 7 by the motor 56 so that the hook 54 can be returned to the rotation position at which the hook 54 is detached from the engagement pin 9 of the container 2 is described in FIG. As shown by the imaginary line in FIG. 6 and the imaginary line in FIG. 2, even before the pulling of the container 2 is completed, it is performed before the hook 54 is engaged with the engaging pin 9 of the container 2. When the container 2 is separated from the compactor 1, the hydraulic cylinder is used as described above.
This can be performed after the arm 51 is moved forward to a predetermined front position by the use of the arm 52. Next, when the arm 51 is moved backward to a predetermined rear position by the hydraulic cylinder 52,
The container 2 returns to the initial return state (the state shown in FIG. 1).
Is completed.

As described above, according to the container securing device a of the present invention having the above configuration, the container 2 is secured and released in accordance with the rotating state of each twist lock 19, 20, and each twist lock is provided. The rotation of 19 and 20 is linked mechanism 21
Since the link mechanism 21 is driven by the hydraulic cylinder 22 as a driving device, the hydraulic cylinder 22 as the driving device is different from the above-mentioned conventional container securing device, and only one hydraulic cylinder 22 is required, which is inexpensive.

According to the container pulling device b having the above configuration, the arm 51 can be immediately retracted without separating the container 2 from the compactor 1 and carrying the container 2 away. When the container 2 is sequentially moved by providing a container transfer device 5 in front of the compactor 1 and a plurality of containers 2 are placed in order to raise the It becomes possible. The container pulling device b includes an arm 51, a hydraulic cylinder 52, a hook 54,
Since it is composed of the motor 55 and the motor 56, the structure is simple and can be provided at low cost. Further, the container pulling device b
Operates as described above, so that the operation is simple and the reliability is high. Furthermore, in the container pulling device b,
Mounting board fixed to arm 51 with bolts 66 and nuts 67
Since the hook 54, the cam 55, the motor 56, and the like are mounted on the top 68, the bolts 66 and the nuts 67 can be removed together by removing the bolts 66 and the nuts 67, so that they can be easily maintained.

[Effect of the invention]

ADVANTAGE OF THE INVENTION According to this invention, a container can be fixed only by using a single drive device, and the effect which becomes cheap can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a container lashing device according to an embodiment of the present invention, FIG. 2 is a view taken in the direction of arrows II-II in FIG. 1, FIG. 3 is a view taken in the direction of arrows III-III in FIG. FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2, FIG. 5 is a partially cutaway perspective view of the bracket, FIG. 6 is a view taken in the direction of arrows VI-VI in FIG. 2, and FIG. It is a principal part longitudinal cross-sectional view of an apparatus. a: container securing device, b: container pulling device,
1 ... Compactor, 2 ... Container, 6,7 ... Receptacle, 1
0,11… Long hole, 15,16… Shaft, 17,18…
19,20 …… Twist lock, 21 …… Link mechanism, 22 ……
Hydraulic cylinder (drive).

Continuation of the front page (56) References JP-A-61-287603 (JP, A) JP-A-52-61364 (JP, A) JP-A-51-40295 (JP, A) , U) Japanese Utility Model Showa 60-159708 (JP, U) JP-B 54-19716 (JP, B2)

Claims (1)

(57) [Scope of request for utility model registration] 1. A front end of a shaft protruding forward of a compactor and rotatably supported with respect to the compactor, is inserted into and removed from an elongated hole of a metal fitting provided in a container drawn to the container. Twist locks are provided side by side via a link mechanism and a single driving device, and are provided between the twist locks so as to be movable in the front-rear direction with respect to the compactor and at a contact portion for pushing back the container and at the container. A container lashing device comprising an arm having a hook engageable with an engagement pin.