JP5753390B2 - Dust input box of a garbage collector and a garbage collector equipped with the same - Google Patents

Description

The present invention relates to a dust collection box of a dust collection vehicle, and more particularly to a dust collection box provided with a door for opening and closing a dust collection port provided in the dust collection box and a dust collection vehicle including the same.

  Conventionally, as a dust input box of this kind of garbage collection vehicle, an input box main body in which a dust input port is provided in the lower part on the rear side, and a vertically movable along the rear surface in the input box main body, A door that opens and closes the dust input port, a pair of width direction guide rails that can be provided along the rear surface of the input box body, and can guide the door along the rear surface of the input box main body, and one end side is the width of the rear surface of the input box main body A pair of arms connected to both sides in the direction and the other end connected to each other so as to be movable in the width direction via a slider extending in the width direction on the back surface of the door, and urge the door in a direction to open the dust inlet An urging means is known (for example, see Patent Document 1).

  In the dust box, when the door is opened and closed, a frictional force acts between the door and the guide rail, and at the same time, between the slider and the other end of each arm that slides on the outer peripheral surface of the slider. Friction force acts on In this dust box, the frictional resistance acting when the door is opened and closed is large, and the urging means may not function effectively.

  Therefore, as a garbage throwing box that can reduce the frictional resistance when opening and closing the door, one end of each of the pair of arms is connected to the throwing box body side, and the other end is connected to the width direction of the door. One connected to both sides is known (see, for example, Patent Document 2). This dust throwing box opens and closes the dust throwing opening by opening and closing the door by moving the other end of each arm in the vertical direction.

JP 2007-269412 A JP 2010-47378 A

  The dust input box needs to open the dust input port greatly. In a dust box (see Patent Document 2) having a small frictional resistance when the door is opened and closed (see Patent Document 2), it is necessary to lengthen the entire arm length in order to increase the moving distance of the door. For this reason, it is necessary to ensure a large space in the front-rear direction for accommodating the arm in a swingable manner on both the left and right sides of the dust inlet. However, it is difficult to secure a sufficient arm storage space in a small garbage truck.

  An object of the present invention is to provide a dust box for a garbage truck that can reduce frictional resistance during opening and closing operations of a door and can save space for an arm storage space.

In order to achieve the above object, the present invention comprises an input box body provided with a dust input port and a door for opening and closing the dust input port, and the door is accommodated in the input box body when the dust input port is opened. In a garbage collection box of a garbage collection vehicle, a guide rail that is provided along a predetermined position in the collection box body and guides the door when the dust collection opening is opened and closed, and one end swings toward the collection box body. The other end is connected to the door side, the other end is connected to the door side, the distance between one end and the other end is variable, the one end side is connected to the input box body side, and the other end side is A biasing means coupled to the link mechanism and biasing the door in a direction to open the dust inlet through the link mechanism;
In the link mechanism, the one end is located behind the frame extending along the longitudinal center line extending in the longitudinal direction when viewed from the width direction on the outer side in the width direction of the side panel located on both sides in the width direction of the input box body. It is swingably connected.

  As a result, the distance between the one end and the other end of the link mechanism can be changed according to the opening / closing operation of the door, so that the space for accommodating the link mechanism in a movable manner can be saved. Become.

In the invention according to claim 2, the link mechanism includes a first link member having one end swingably connected to a rear position with respect to the longitudinal center line of the side panel , and one end swinging to the door side. a second link member which is movably coupled, one end is swingably connected to the other end of the first link member and the other end is have your interval on one end side direction from another end of the second link member A third link member that is swingably connected and one end of the third link member are swingably connected to the other end of the second link member, and the other end is spaced from the other end of the first link member toward the one end side. And a fourth link member connected in a swingable manner.
According to a third aspect of the present invention, there is provided a refuse collection vehicle including a dust container that is disposed in front of the dust input box and that stores the dust .

  According to the present invention, the space for movably housing the link mechanism can be reduced, so that the link mechanism can be applied to a small garbage truck.

It is a side view of the garbage truck which shows one embodiment of the present invention. It is a side view of the dust box which shows the state which removed the side cover and cut | disconnected the top cover. It is the figure which looked at the side panel, the door, and the door opening / closing mechanism from the rear side. It is AA 'sectional drawing in FIG. It is BB 'sectional drawing in FIG. It is a figure which shows the detail of a link arm. It is operation | movement explanatory drawing which shows operation | movement of the door opening / closing mechanism accompanying the opening / closing operation | movement of a door.

  1 to 7 show an embodiment of the present invention.

  As shown in FIG. 1, a refuse collection vehicle 1 to which a dust input box of the present invention is applied is provided with a chassis 10, a cab 20 provided at a front portion of the chassis 10, and a driver seat inside. A dust storage box 30 provided behind and for storing dust, and a dust input box 40 provided behind the dust storage box 30 for loading the input dust into the dust storage box 30 are provided. .

  As shown in FIGS. 2 and 3, the garbage throwing box 40 includes a throwing box body 41 provided with a rectangular dust throwing opening 41 a at a lower portion of the rear surface, a door 42 that can open and close the dust throwing opening 41 a, a door And a door opening / closing mechanism 50 for performing the opening / closing operation 42. A compression loading mechanism (not shown) is provided in the input box body 40 for compressing the dust input from the dust input port 41a and pushing it into the dust storage box 30.

The input box body 41 is disposed so as to face each other in the width direction, and is provided at a lower portion between the pair of left and right side panels 41b extending in the vertical direction on both sides in the width direction of the dust input port 41a and the pair of side panels 41b. A bottom plate 41c formed in a substantially semi-cylindrical shape, a side cover 41d that covers the outside of each side panel 41b with an interval, and a top cover 41e that covers the upper surface side and the upper part of the rear surface in the width direction. doing. In relation to the compression loading mechanism, as shown in FIG. 2, a frame 61 extending along the longitudinal center line 60 viewed from the width direction is provided on the outer side in the width direction of each side panel 41b.

  As shown in FIG. 1, an operation lamp 41f such as a work indicator lamp and a tail lamp and an operation portion 41g for operating a compression loading mechanism are provided near the top surface of the top cover 41e and the dust inlet 41a.

  As shown in FIGS. 2 and 3, the door 42 is provided so as to be movable in the vertical direction with respect to the charging box body 41, and moves upward from a state where the dust charging port 41a is closed. 41a is opened. The door 42 is accommodated in the upper part of the input box body 41 in a state where the dust input port 41a is opened. A pair of handles 42 a in the width direction used when the operator performs an operation to open and close the door 42 is provided at the lower part of the outer surface of the door 42. Further, as shown in FIGS. 4 and 5, the door 42 is rotatably provided on both sides in the width direction on the lower side and the upper side, and can roll in the grooves of the lower guide rail and the upper guide rail described later. A roller 42b is provided. Further, at both ends in the width direction on the upper side of the door 42, as shown in FIGS. 2 and 3, extending portions 42 c that extend outward from the outer surface of each side panel 41 b are provided. As shown in FIG. 2, each extending portion 42c is provided so as to be movable between the rear end portion of the side panel 41b and the top cover 41e. A link arm (to be described later) of the door opening / closing mechanism 50 is connected to the end of each extending portion 42c.

  The door opening / closing mechanism 50 has a pair of lower guide rails 51 for guiding the lower side of the door 42 in the opening / closing direction of the door 42 and a width direction for guiding the upper side of the door 42 in the opening / closing direction of the door 42. A pair of upper guide rails 52, a pair of coil springs 53 in the width direction for urging the door 42 in a direction to open the dust inlet 41a, and a pair of forces for transmitting the tensile force of each coil spring 53 to the door. And a link arm 54 as a link mechanism.

  As shown in FIG. 4, each lower guide rail 51 is provided on the inner side in the width direction of each side panel 41b along both sides in the width direction of the dust inlet 41a. Each of the lower guide rails 51 is provided so that the groove bottoms face each other, and has a guide groove 51a with which a roller 42b on the lower side of the door 42 can be engaged.

  As shown in FIG. 5, each upper guide rail 52 is provided below the top cover 41e on the inner side in the width direction of each side panel 41b. Each upper guide rail 52 is provided so that the groove bottoms face each other, and has a guide groove 52a in which a roller 42b on the upper side of the door 42 can be engaged. As shown in FIG. 2, each of the upper guide rails 52 is formed so as to have a curvature of a circumference having a radius R around the point O.

  In the tensioned state, each coil spring 53 has one end connected to the upper portion on the outer side in the width direction of each side panel 41 b and the other end connected to a link member described later of each link arm 54.

  As shown in FIG. 6, each link arm 54 has a first link member 54a having one end connected to the side panel 41b, a second link member 54b having one end connected to the extending portion 42c of the door 42, and one end Is connected to the other end of the first link member 54a, and the other end is connected to the other end of the second link member 54b at a distance from the other end of the second link member 54b. The fourth link member 54d is connected to the end and connected to the other end of the first link member 54a with a distance from the other end. One end of the first link member 54a is swingably connected to the side panel 41b via a support shaft 54e. One end of the second link member 54b is slidably connected to the extending portion 42c of the door 42 via a support shaft 54f. One end of the third link member is swingably connected to the first link member 54a via a support shaft 54g, and the other end is swingable to the second link member 54b via a support shaft 54h. It is connected. One end of the fourth link member 54d is swingably connected to the second link member 54b via a support shaft 54i, and the other end is swingable to the first link member 54a via a support shaft 54j. It is connected to. Further, a spring connecting portion 54k for connecting the other end side of the coil spring 53 is provided at a substantially central portion in the longitudinal direction of the first link member 54a.

  The link arm 54 maintains the state where the longitudinal direction of the first link member 54a and the longitudinal direction of the second link member 54b are parallel, and the second link member 54b moves relative to the first link member 54a. In the link arm 54, the distance L between the support shaft 54e and the support shaft 54f can be changed within a predetermined range by moving the second link member 54b with respect to the first link 54a.

  With reference to FIG. 7, the opening / closing operation of the door 42 in the garbage collection box of the garbage truck configured as described above will be described.

  First, in a state in which the dust inlet 41a is closed, the door 42 is located at the lower rear portion of the input box body 41. At this time, as shown in FIG. 7A, in the link arm 54, the second link member 54b is positioned below the first link member 54a, and the distance L between the support shafts 54e and 54f is maximized. .

  The operator holds the handle 42a provided on the lower side of the door 42 and lifts the door 42 upward to open the dust inlet 41a. When the door 42 is lifted upward, the roller 42 b provided on the lower side of the door 42 rolls on the guide groove 51 a of the lower guide rail 51, and the roller 42 b provided on the upper side of the door 42 moves to the upper guide rail 52. By rolling the guide groove 52a, the door 42 is guided in the opening direction. Further, the link arm 54 swings about the support shaft 54e as the second link member 54b moves upward as the door 42 moves. Further, in the link arm 54, the second link member 54b moves relative to the first link member 54a in a direction in which the distance L between the support shaft 54e and the support shaft 54f decreases. As shown in FIG. 7B, the link arm 54 has a minimum distance L between the support shaft 54e and the support shaft 54f in a state where the dust inlet 41a is half open.

  When the door 42 is further lifted upward from the state where the dust inlet 41a is half open (FIG. 7B), the link arm 54 is such that the second link member 54b is positioned above the first link member 54a. Until it swings around the support shaft 54e. In the link arm 54, the second link member 54b moves relative to the first link member 54a in a direction in which the distance L between the support shaft 54e and the support shaft 54f increases again. As shown in FIG. 7C, the link arm 54 has the maximum distance L between the support shaft 54e and the support shaft 54f in a state where the dust inlet 41a is opened to the maximum.

  In the opening operation of the door 42, a biasing force is applied to the first link member 54a of the link arm 54 in a direction in which the other end side moves upward about the support shaft 54e by the coil spring 53. The biasing force applied to the first link member is transmitted to the door 42 via the second to fourth link members 54b, 54c, 54d. Thereby, the operator who performs the opening operation | movement of the door 42 can open the refuse input port 41a with the force smaller than the weight of the door 42. FIG.

  Further, when the door 42 is closed from the state where the dust inlet 41a is completely opened (FIG. 7C), the second link member 54b moves downward against the biasing force of the coil spring 53. The link arm 54 swings in the direction. A distance L between the support shaft 54 e and the support shaft 54 f of the link arm 54 is a distance L corresponding to the opening degree of the door 42.

  In the opening / closing operation of the door 42, the support shaft 54f at one end of the second link member moves along the circumference of the radius R with the point O as the center, as shown in FIG. The link arm 54 has a smaller movement space of the link arm 54 compared to the case where the link arm 54 is moved on the circumference by a single link arm.

  As described above, according to the dust collection box of the garbage collection vehicle of the present embodiment, one end is swingably connected to the input box body 41 side via the support shaft 54e, and the other end is supported to the door 42 side. A link arm 54 is provided that is swingably connected via a shaft 54f and that has a variable distance L between one end and the other end. This makes it possible to change the distance L between the one end and the other end of the link arm 54 in accordance with the opening / closing operation of the door 42, so that the space for accommodating the link arm 54 movably can be saved. It can be applied to a small garbage truck.

  The link arm 54 has a first link member 54a whose one end is connected to the side panel 41b, a second link member 54b whose one end is connected to the extending portion 42c of the door 42, and one end the first link member 54a. The other end of the second link member 54b is connected to the other end of the second link member 54b, and the other end of the second link member 54b is connected to the other end of the second link member 54b. The other end of the first link member 54a is connected to the other end of the first link member 54a at a distance from the fourth link member 54d. As a result, the distance L between the one end and the other end of the link arm 54 can be changed with a simple configuration in which the four link members 54a, 54b, 54c, 54d are connected, thereby reducing the manufacturing cost. be able to.

  The link arm 54 is provided on the outer side in the width direction of the side panel 41b. Thereby, it is not necessary to consider the housing with the members in the input box main body 41, and since it is not affected by the dust input from the dust input port 41a, it is possible to prevent the occurrence of a malfunction such as a failure. Is possible.

  In the embodiment, the link arm 54 includes a first link member 54a having one end connected to the side panel 41b, a second link member 54b having one end connected to the extending portion 42c of the door 42, and one end connected to the side link 41b. The third link member 54c is connected to the other end of the first link member 54a, and the other end is connected with a gap from the other end of the second link member 54b, and one end is the other end of the second link member 54b. The fourth link member 54d is connected to the other end of the first link member 54a and spaced from the other end of the first link member 54a. However, the present invention is not limited to this. As long as the distance L between one end and the other end of the link arm can be changed, for example, an expansion / contraction mechanism such as a cylinder and a piston may be used as the link arm.

In the above-described embodiment, the door 42 is guided in the opening / closing operation direction by the lower guide rail 51 and the upper guide rail 52, but the present invention is not limited to this. A single guide rail may be provided for each.
Furthermore, although what has the dust inlet 41a in the lower part of the input box main body 41 was shown, you may have in the upper part. In this case, when the dust inlet is opened, the door is accommodated in the lower part of the input box body.

DESCRIPTION OF SYMBOLS 1 ... Waste collection vehicle, 40 ... Dust input box, 41 ... Input box main body, 41a ... Dust input port, 41b ... Side panel, 42 ... Door, 42b ... Roller, 50 ... Door opening / closing mechanism, 51 ... Lower guide rail, 52 ... upper guide rail, 53 ... coil spring, 54 ... link arm, 54a ... first link member, 54b ... second link member, 54c ... third link member, 54d ... fourth link member, 54e ... support shaft, 54f ... Support shaft, 54k ... spring connecting portion , 60 ... longitudinal center line, 61 ... frame .

Claims (3)

And turned box body dust inlet is provided, comprising a door for opening and closing the waste inlet, and in dust-up box refuse collection vehicle door is housed turned box body upon opening of the dust inlet,
A guide rail that is provided along a predetermined position in the input box body and guides the door when the dust input port is opened and closed;
A link mechanism in which one end is swingably connected to the charging box body side and the other end is swingably connected to the door side, and the distance between the one end and the other end is variable,
One end side is connected to the charging box body side, the other end side is connected to the link mechanism, and includes a biasing means for biasing the door in the direction of opening the dust inlet through the link mechanism,
In the link mechanism, the one end is located behind the frame extending along the longitudinal center line extending in the longitudinal direction when viewed from the width direction on the outer side in the width direction of the side panel located on both sides in the width direction of the input box body. A dust collection box for a dust collection vehicle characterized by being swingably connected. The link mechanism includes a first link member having one end swingably connected to a position rearward of the longitudinal center line of the side panel, and a second link member having one end swingably connected to the door side. The third link member having one end pivotably connected to the other end of the first link member and the other end pivotably coupled to the other end of the second link member at one end side direction. And a fourth link having one end pivotably coupled to the other end of the second link member and the other end pivotably coupled to the other end of the first link member at one end side direction. The refuse input box of the refuse collection vehicle according to claim 1, further comprising: a member. A dust input box of the garbage truck according to claim 1 or 2,
A garbage collection vehicle, comprising: a dust storage box disposed in front of the dust input box and configured to store dust.