JP6899700B2 - Garbage collection vehicle - Google Patents

Description

The present invention relates to a dust collecting vehicle.

A dust collecting vehicle is proposed in Patent Document 1. The dust collecting vehicle described in Patent Document 1 includes a dust storage box and a dust charging box (also referred to as a "tailgate") for temporarily holding dust thrown from behind by an operator, and is used in the dust charging box. Is equipped with a loading device that moves the dust inside the dust storage box.

The loading device moves forward and backward around the swing center axis in order to push forward the rotating plate that rotates around the center axis of rotation in the dust loading box and the dust pushed up in the dust loading box by the rotating plate. It is equipped with a swinging push-in plate. The rotation center axis is connected to the drive shaft of the drive motor, and the rotating plate rotates around the rotation center axis by the drive of the drive motor. The swing center axis is connected to the hydraulic cylinder, and the push plate swings around the swing center axis due to the expansion and contraction of the hydraulic cylinder.

FIG. 2 of Patent Document 1 shows in detail the push-in plate among the rotating plate and the push-in plate. The push-in plate includes a front plate that is on the front side in the direction of pushing the dust and extends in the substantially width direction of the dust input box, and a rear plate that faces the front plate on the rear side and extends in the substantially width direction of the dust input box. An upper reinforcing member arranged between the front plate and the rear plate on the upper end side in the substantially width direction of the dust input box, and an approximately width of the dust input box arranged on the lower end side between the front plate and the rear plate. It is provided with a downward reinforcing member in the direction.

In particular, the lower reinforcing member is formed in a U-shaped cross section with a rear reinforcing plate portion and flanges protruding forward from the upper and lower ends of the rear reinforcing plate portion. Then, the upper corner portion of the lower reinforcing member and the lower end portion of the rear plate are welded to integrate the two.

This push-in plate is swung around the swing center axis so as to push the dust forward with the region near the lower end of the front plate as the main push-in surface.

Special Publication No. 64-6081

In the dust collecting vehicle described in Patent Document 1, the pushing plate of the loading device is swung around the swing center axis so as to push the dust forward with the region near the lower end of the front plate as the main pushing surface. .. Further, in the push-in plate of the loading device, the lower end of the rear plate and the upper corner portion of the lower reinforcing member are welded and integrated.

In the loading device of the dust collecting vehicle described in Patent Document 1, as the pushing plate swings around the swing center axis and pushes the dust forward, the pushing surface of the front plate is loaded as a reaction force by the dust. Receive. Then, when the lower reinforcing member and the rear plate integrated with the front plate are deformed so as to bend due to this load, stress is concentrated on the welded portion between the upper corner portion of the lower reinforcing member and the lower end of the rear plate. The welded part will be damaged.

Therefore, an object of the present invention is to provide a dust collecting vehicle capable of preventing damage to the welded portion between the reinforcing member and the rear plate in the loading device.

The dust collecting vehicle of the present invention includes a dust storage box having a storage space for storing dust, a dust storage box having a dust charging port and connected to the rear of the dust storage box, and loading from the loading port. The loading device is provided with a loading device for moving the collected dust to the accommodation space, and the loading device includes a rotating plate that rotates to move the dust charged into the dust loading box so as to scrape it up, and a rotating plate that is scratched by the rotating plate. A push plate for moving the raised dust to push it into the storage space is provided, and the rotating plate and the push plate are arranged in the front direction in which the dust is moved and extended in the width direction of the dust input box. At least one of the rotating plate and the push-in plate is provided with a front plate, and is passed to a pair of reinforcing members having a reinforcing plate fixed to the back side of the front plate and extended in the width direction, and the reinforcing plates. The rear plate is provided with a rear plate that is fixed and extended in the width direction, and the rear plate is provided with a bent portion that is bent over the width direction between the reinforcing plates, and an end portion on the reinforcing member side is provided. It is characterized in that at least one of the pair of reinforcing members is overlapped with the back surface of the reinforcing plate in a parallel state and welded to the reinforcing plate.

In the loading device in the dust collecting vehicle of the present invention having the above configuration, the end portion of the rear plate on the reinforcing member side is overlapped in a state parallel to the back surface of the reinforcing plate of the reinforcing member and welded to the reinforcing plate. , Even when the load as a reaction force due to the movement of dust acts on the loading device and the reinforcing member fixed to the front plate of the rotating plate or the pushing plate is deformed so as to bend, the rear plate and the reinforcing plate are welded together. Since the stress is not concentrated on the portion and the rear plate has a bent portion that is bent in the width direction between the reinforcing plates, the bending of the rear plate according to the bending of the reinforcing member is bent. It is absorbed as deformation of the part, and the load acting on the welded part can be reduced accordingly.

In the dust collecting vehicle of the present invention, the reinforcing member includes a flange whose base end is fixed so as to be raised on the back surface of the front plate, and the reinforcing plate is integrally formed at the tip of the flange to reinforce the reinforcement. The continuous portion between the plate and the flange is a corner portion, and the bent portion can adopt a configuration formed at a portion corresponding to the corner portion.

In the dust collecting vehicle having the above configuration, even when a load as a reaction force due to the movement of the dust acts on the loading device and the reinforcing member reinforcing the rotating plate or the front plate of the pushing plate is deformed so as to bend. Since the bent portion of the rear plate is formed at the portion corresponding to the corner portion, the bent portion is deformed in the vicinity of the welded portion between the rear plate and the reinforcing plate, and the load acting on the welded portion is suppressed. ..

According to the present invention, it is possible to prevent damage to the welded portion between the reinforcing member and the rear plate in the loading device of the dust collecting vehicle.

It is a side view which showed the whole schematic structure of the dust collecting vehicle which concerns on one Embodiment of this invention. It is operation explanatory drawing of the rotating plate, a pushing plate, and a pushing cylinder. It is a rear view which showed the whole of the rotating plate. It is a side view which showed the whole of the rotating plate. It is the cross-sectional view of the rotating plate at the center in the width direction, and also shows the main part area enlarged. It is a rear view which showed the whole of the push-in plate. It is a rear view which showed the whole of the push-in plate. It is the cross-sectional view of the push-in plate at the center in the width direction, and also shows the main part area enlarged.

Hereinafter, the dust collecting vehicle according to the embodiment of the present invention will be described with reference to the drawings. In specifying the following directions, the front-rear direction is the front-rear direction of the dust collecting vehicle, and the width direction is the left-right direction when the dust collecting vehicle is viewed from the front or the rear.

As shown in FIG. 1, the dust collecting vehicle 1 in the present embodiment uses a rotating plate type dust collecting system. The dust collecting vehicle 1 includes a dust storage box 2 mounted on the vehicle body 1a and a dust charging box 3 connected to the rear portion thereof.

At the rear of the dust input box 3, an input port 3a for charging dust is formed. An opening 3d is provided in the lower front portion of the dust storage box 3 to move the dust charged into the dust storage box 3 from the dust storage box 2 in order to store the dust in the dust storage box 2 in the storage space 2A.

The dust input box 3 is provided with a cover member 39 capable of opening and closing the input port 3a. The cover member 39 includes an upper cover 40 that opens and closes the upper part of the insertion port 3a, and a lower cover 41 that opens and closes the lower part of the insertion port 3a.

The lower cover 41 is rotatably attached to the lower part of the insertion port 3a, and can be switched between a standing posture and a horizontal posture (broken line position in FIG. 1). The lower cover 41 is extended over almost the entire length in the vehicle width direction. In the horizontal posture of the lower cover 41, when the operator throws the dust through the charging port 3a, the dust can be once placed on the lower cover 41 to improve the workability of the dust feeding.

Inside the dust input box 3, a loading device is provided for moving the dust to the storage space 2A of the dust storage box 2. The loading device pushes forward the rotating plate 52 that rotates around the lower support shaft 54, which is the central axis of rotation in the dust loading box 3, and the dust that has been picked up in the dust loading box 3 by the rotating plate 52. A push plate 53 that swings in the front-rear direction around the upper support shaft 55, which is the swing center axis, is provided.

The rotary plate 52 is a member that moves the dust thrown into the dust throwing box 3 so as to be scraped up from the arcuate bottom (also referred to as “hopper”) 3e formed in the dust throwing box 3 to the front upper part. The rotating plate 52 is integrated with the lower support shaft 54 extending in the width direction, and can rotate together with the lower support shaft 54 around its central axis. The lower support shaft 54 (rotary plate 52) is connected to a hydraulic motor (not shown) via a reduction mechanism. The lower support shaft 54 is rotationally driven so as to be able to rotate 360 ° forward and reverse by the drive of the hydraulic motor, and the lower support shaft 54 is rotationally driven by the drive of the hydraulic motor, so that the rotary plate 52 integrated with the lower support shaft 54 rotates. To do. The clockwise direction indicated by the arrow in FIG. 1 is the forward rotation direction of the rotating plate 52.

The push-in plate 53 is a member for moving and pushing the dust on the rotary plate 52, which is scraped up by the rotary plate 52, into the dust storage box 2 (storage space 2A) connected to the front of the dust input box 3. .. The push plate 53 is integrated with the upper support shaft 55 extending in the width direction, and can swing forward and backward around the axis. The push plate 53 swings forward and backward around the upper support shaft 55 as a push drive means by expanding and contracting a pair of push cylinders 57 provided in the width direction. The push cylinder 57 is arranged outside in the width direction with respect to the side walls 3c arranged on both the left and right sides of the dust input box 3. The cylinder-side ends of the push-in cylinder 57 are attached to both sides of the side wall 3c by pins 58, and the piston-side ends are connected to the upper end of the push-in plate 53 by pins 59.

The lower support shaft 54 and the upper support shaft 55 are arranged in parallel with each other so as to extend in the dust loading box 3 in the width direction, and both ends of the shafts are bearing on the left and right side walls 3c of the dust loading box 3, respectively (FIG. It is rotatably penetrated and supported via (not shown). The lower support shaft 54 and the upper support shaft 55 do not necessarily have one shaft, and the portion supported by the bearing may be two shafts separated from each other on the left and right sides.

2 (a) to 2 (d) are operation explanatory views showing only the rotating plate 52, the pushing plate 53, and the pushing cylinder 57 extracted. In the present embodiment, the rotating plate 52 is thrown into the dust input box 3 by the rotating operation of the rotating plate 52 indicated by the circular locus R in the direction of the arrow and the swinging operation of the pushing plate 53 indicated by the arc locus S in the direction of the double arrow. The collected dust is stored in the dust storage box 2. That is, the rotating plate 52 starts a "rotation" process in which the rotating plate 52 shown in FIG. 2A rotates clockwise when the hydraulic motor is driven with the position at about 9 o'clock in the drawing as the original position. ..

When the rotating plate 52 reaches the position (standing position) at approximately 12 o'clock shown in FIG. 2B, the tip portion 53a of the pushing plate 53 swings backward (in the direction of arrow Sr) due to the contraction operation of the pushing cylinder 57. When the "backward" stroke is performed and the tip portion 53a swings backward to the position shown in FIG. 2C (backward end position), the backward swing of the push plate 53 stops. At that time, since the rotating plate 52 continues to rotate even while the pushing plate 53 is retracting, interference between the pressing plate 53 and the rotating plate 52 is prevented during the retracting.

After that, when the rotating plate 52 continues to rotate and returns to the original position (position at about 9 o'clock) shown in FIG. 2 (d), the rotation of the rotating plate 52 is stopped and the pushing cylinder 57 is extended. A "pushing" stroke is performed in which the tip end portion 53a of the pushing plate 53 swings forward (in the direction of arrow Sf). When the tip portion 53a of the push plate 53 swings forward to the position shown in FIG. 2A (push end position P), the forward swing of the push plate 53 stops.

By operating the hydraulic motor and the push cylinder 57 in cooperation with each other in this way, a one-cycle stroke operation is performed by rotating the rotary plate 52 and retracting / pushing the push plate 53. In other words, in the one-cycle process of rotation, retreat, and pushing, the rotating plate 52 first starts rotating from the original position, the pushing plate 53 retreats to the retreating end position during the rotation, and the rotating plate 52 further retreats. This is a series of operations in which the push plate 53 pushes from the retracted end position to the pushed end position P after returning to the original position and stopping the rotation. During this series of operations, the rotating operation of the rotating plate 52 and the retreating / pushing operation of the pushing plate 53 cooperate with each other so that they do not interfere with each other.

In the vicinity of the lower support shaft 54 and the upper support shaft 55, a first proximity switch or a fourth proximity switch (60, 61, 62a, 62b) that electrically detects the operating positions of the rotating plate 52 and the push plate 53, respectively. Is placed. The first proximity switch 60 and the second proximity switch 61 detect the operating position of the rotating plate 52 around the lower support shaft 54. The third proximity switch 62a and the fourth proximity switch 62b detect the operating position of the push plate 53.

The first proximity switch 60 detects the dog 80 attached to the lower support shaft 54 until the rotating plate 52 rotates from the original position (position at about 9 o'clock) to the standing position (position at about 12 o'clock). As a result, it is detected that the rotating plate 52 is in a position from the original position (position at about 9 o'clock) to the standing position (position at about 12 o'clock).

The dog 80 is formed in a fan shape substantially concentric with the axis center of the lower support shaft 54, and the first proximity switch 60 is a position immediately before the tip portion 52a of the rotating plate 52 is clockwise from the original position to the standing position. The dog 80 is detected until it rotates to. As a result, the first proximity switch 60 is in the detection state at the original position and in the non-detection state at the upright position.

The second proximity switch 61 detects that the rotating plate 52 is in the position of about 6 o'clock by detecting the dog 80. The second proximity switch 61 detects the dog 80 until the rotating plate 52 rotates from the position at about 6 o'clock to the position immediately before the original position (position at about 9 o'clock). As a result, the second proximity switch 61 is in the non-detection state at the original position.

The third proximity switch 62a detects that the push plate 53 has reached the retracted end position (FIG. 2C) by detecting the dog 55a attached to the upper support shaft 55. The fourth proximity switch 62b, which is the push-in end detecting means, detects that the push-in plate 53 has reached the push-in end position (FIG. 2A) by detecting the dog 55a. Of the first proximity switch to the fourth proximity switch, the third proximity switch 62a and the fourth proximity switch 62b are fixedly attached to the outer surface of the side wall 3c of the dust input box 3.

The dust collecting vehicle 1 includes a control device to which a detection signal from the first proximity switch or the fourth proximity switch is input. The control device is arranged at the lower port side of the vehicle body 1a. The control device controls the drive of the hydraulic motor (rotary plate 52) and the push cylinder 57 (push plate 53) so as to perform the above-mentioned one-cycle process in response to the detection signal from the first proximity switch or the fourth proximity switch. To do.

In the dust collecting vehicle having the above configuration, the lower support shaft 54 rotates so as to be decelerated as the hydraulic motor is driven, and the rotating plate 52 rotates around the lower support shaft 54, so that the rotating plate around the lower support shaft 54 rotates. The first proximity switch 60 and the second proximity switch 61 electrically detect the position of 52 as the position of the dog 80 that rotates with the lower support shaft 54. As a result, the push-in plate 53 swings forward around the upper support shaft 55 to accommodate the dust that has been thrown into the dust-filling box 3 from the throw-in port 3a and pushed up by the rotation of the rotating plate 52. The rotating plate 52 and the pushing plate 53 operate in cooperation with each other so as to push toward the accommodation space 2A of the box 2.

Here, the configurations of the rotating plate 52 and the pushing plate 53 will be described. In the description of the independent configuration of the rotating plate 52 and the pushing plate 53, the front is the direction in which the dust is moved. The back surface is a surface facing in the direction opposite to the direction in which the dust is moved. First, the rotating plate 52 will be described. As shown in FIGS. 3 to 5, the rotary plate 52 includes a rotary plate front plate 4, a rotary plate reinforcing member, and a rotary plate rear plate 8. The rotary plate 52 further includes a front plate 4 for the rotary plate, a reinforcing member for the rotary plate, and support portions 9 and 9 for the rotary plate that support the rear plate 8 for the rotary plate on both sides in the width direction.

The rotary plate support portions 9 and 9 are arranged on both sides in the width direction of the rotary plate 52, and include a pair of rotary plate support plates 10 and 10 arranged in parallel with each other separated in the width direction. The rotating plate support plates 10 and 10 are arranged parallel to the side wall 3c. A rotary plate connecting plate 11 is passed to the rear portion of the rotary plate support plates 10 and 10, and the rotary plate support plates 10 and 10 of the rotary plate support portions 9 and 9 are connected to each other. It is fixed via. The lower support shaft boss portions 12 and 12 that insert and support each end side of the lower support shaft 54 are integrally inserted and supported at one end of the rotary plate support portions 9 and 9.

The rotary plate front plate 4 is fixed to the rotary plate support portions 9, 9 so as to pass over the front end faces of the rotary plate support portions 9, 9 (rotary plate support plates 10, 10), and the dust input box 3 It is extended in the width direction and extends over the entire length in the width direction. As shown in FIGS. 4 and 5, the rotary plate front plate 4 has a plurality of bent portions extending in the width direction, and is formed in a curved shape as a whole so as to be convex toward the rear. With such a curved shape, when the rotating plate 52 rotates around the lower support shaft 54, it is easy to scrape up all the dust placed on the arcuate bottom portion 3e formed in the dust input box 3. ..

The rotary plate reinforcing member is fixed to the back surface (back surface) of the rotary plate front plate 4. The reinforcing members for the rotating plate are the first reinforcing member 5 for the rotating plate, the second reinforcing member 6 for the rotating plate, and the third reinforcing member 7 for the rotating plate from the side closer to the lower support shaft boss portions 12 and 12.

For convenience, the configuration of the second reinforcing member 6 for the rotating plate will be described. The second reinforcing member 6 for the rotary plate extends between the support portions 9 and 9 for the rotary plate. The second reinforcing member 6 for the rotating plate includes a pair of flanges 6F and 6F having a base end (front end) fixed to the back surface of the rotating plate front plate 4 so as to rise from the back surface, and the flanges. A second reinforcing plate 6P for a rotating plate, which is located at the tip (rear end) of the 6F and 6F and is integrally formed between the flanges 6F and 6F, is provided. The second reinforcing plate 6P for the rotating plate is formed in a flat plate shape, and the continuous portion between the flanges 6F and 6F and the second reinforcing plate 6P for the rotating plate is a corner portion 6B.

The third reinforcing member 7 for the rotary plate is arranged on the tip end side of the rotary plate 52 separated from the second reinforcing member 6 for the rotary plate, and is provided on the back surface of the front plate 4 for the rotary plate in the width direction. Has been done. The third reinforcing member 7 for a rotating plate includes a pair of flanges 7F and 7F having a base end (front end) fixed to the back surface of the rotating plate front plate 4 so as to rise from the back surface, and the flanges. It is provided with a third reinforcing plate 7P for a rotating plate, which is located at the tip of the 7F and 7F (the end on the rear side) and is integrally formed between the flanges 7F and 7F. The third reinforcing plate 7P for the rotating plate is formed in a flat plate shape, and the continuous portion between the flanges 7F and 7F and the third reinforcing plate 7P for the rotating plate is a corner portion 7B.

The first reinforcing member 5 for the rotary plate extends between the support portions 9 and 9 for the rotary plate. The first reinforcing member 5 for the rotating plate has boss portions 12 and 12 for the lower support shaft on the back surface of the front plate 4 for the rotating plate, as compared with the second reinforcing member 6 for the rotating plate and the third reinforcing member 7 for the rotating plate. It is located on the near side. The first reinforcing member 5 for the rotating plate is a single flange 5F having a base end (front end) fixed to the back surface of the front plate 4 for the rotating plate so as to rise from the back surface, and the flange 5F. The first reinforcing plate 5P for a rotating plate is provided at the tip (rear end) of the flange 5F and bent toward the second reinforcing plate 6P for the rotating plate.

The first reinforcing plate 5P for the rotating plate, the second reinforcing plate 6P for the rotating plate, and the third reinforcing plate 7P for the rotating plate are all formed in a flat plate shape. The continuous portion between the second reinforcing plate 6P for the rotating plate and the flanges 6F, 6F in the second reinforcing member 6 for the rotating plate, and the third reinforcing plate 7P and the flanges 7F, 7F for the rotating plate in the third reinforcing member 7 for the rotating plate. The continuous portions with and are the corner portions 6B and 7B formed by bending. The second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate are not parallel to each other, and for example, the inclination angles with respect to the vertical direction are different.

In the rotating plate first reinforcing member 5, the continuous portion between the flange 5F and the rotating plate first reinforcing plate 5P is a bent plate portion 5B. Since the curved plate portion 5B is formed, the first reinforcing plate 5P for the rotating plate and the second reinforcing plate 6P for the rotating plate are formed in parallel. The tip side of the first reinforcing plate 5P for the rotating plate is a superposed portion that overlaps a part of the surface (back surface) of the second reinforcing plate 6P for the rotating plate on the first reinforcing plate 5P side for the rotating plate over the width direction. It is 5S. The overlapping portion 5S is fixed to the surface of the second reinforcing plate 6P for a rotating plate by welding over the width direction. In the rotary plate first reinforcing plate 5P of the rotary plate first reinforcing member 5, the curved plate portion 5B is separated from the rotary plate second reinforcing plate 6P and is in the vicinity of the lower support shaft boss portions 12 and 12. Is located in. In the polymerization portion 5S, the welded tip does not include the curved plate portion 5B and is a region portion on the tip side of the curved plate portion 5B.

The rotary plate rear plate 8 is a member that prevents dust from entering between the rotary plate second reinforcing member 6 and the rotary plate third reinforcing member 7 that are arranged apart from each other. The rotary plate rear plate 8 is provided so as to pass to the rotary plate second reinforcing plate 6P and the rotary plate third reinforcing plate 7P which are separated from each other.

The rear plate 8 for the rotating plate is a plate-shaped member extending in the width direction of the dust input box 3. The rear plate 8 for the rotating plate is formed by overlapping the overlapping portions 8S and 8S over the surface (back surface) of the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate in the width direction of the dust input box 3. , A bridge portion 8H between both polymerization portions 8S and 8S is integrally provided. The overlapping portions 8S and 8S are in contact with the surface of the third reinforcing plate 7P for the rotating plate. The overhanging portion 8H is a region from the end of contact with the third reinforcing plate 7P for the rotating plate to the second reinforcing plate 6P for the rotating plate.

Here, as described above, the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate are not parallel to each other, and for example, the inclination angles with respect to the vertical direction are different. However, the bent portions 8B and 8B are formed on the crossing portion 8H (between the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate) in the rear plate 8 for the rotating plate. The bent portions 8B and 8B are formed at portions corresponding to the corner portions 6B and 7B of the second reinforcing member 6 for the rotating plate and the third reinforcing member 7 for the rotating plate. The bent portions 8B and 8B are regions between the rear extension lines of the surfaces of the second reinforcing member 6 for the rotating plate and the third reinforcing member 7 for the rotating plate and the overlapping portions 8S and 8S. .. That is, the portion corresponding to the corner portions 6B and 7B is in the region where the corner portions 6B and 7B are projected rearward. By forming the bent portions 8B and 8B, one of the overlapping portions 8S and the surface (back surface) of the second reinforcing plate 6P for the rotating plate are made parallel to each other, and the other overlapping portion 8S and the second reinforcing plate for the rotating plate 6P are parallel to each other. The front surface (back surface) of the three reinforcing plates 7P is parallel to each other.

The tips of the overlapping portions 8S and 8S are fixed to the surfaces of the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate by welding over the width direction thereof. The bent portion 8B is bent so as to be convex toward the rear. In other words, because both plates overlap in parallel, when the front plate bends and the reinforcing plate moves, it moves while overlapping, and the relative positions of both plates do not change, so the load on the weld can be suppressed and welding can be performed. It is possible to prevent damage to the part.

In the loading device having the above configuration, when the rotating plate 52 is rotated in the forward rotation direction to move the dust from the arcuate bottom portion 3e formed in the dust input box 3 so as to scrape the dust toward the front upper part, the rotating plate A reaction force corresponding to the weight of the dust acts as a load on the 52. When the load due to the dust is large, it is conceivable that the front plate 4 for the rotating plate is deformed so as to bend backward about the lower support shaft 54.

Then, the first reinforcing member 5 for the rotating plate or the third reinforcing member 7 for the rotating plate, which is integrated with the front plate 4 for the rotating plate, is deformed according to the deformation of the front plate 4 for the rotating plate. However, due to the rigidity of the first reinforcing member 5 for the rotating plate and the third reinforcing member 7 for the rotating plate, excessive deformation of the rotating plate 52 is suppressed.

By the way, the rear plate 8 for the rotating plate is passed to the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate, and the rear plate 8 for the rotating plate forms bent portions 8B and 8B and overlaps with each other. The tips of the portions 8S and 8S are welded to the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate.

In the rotary plate 52 having this configuration, the reaction force generated by dust acts on the rotary plate front plate 4 as a load, so that the rotary plate second reinforcing member 6 and the rotary plate third reinforcing member 7 are deformed for the rotary plate. If the second reinforcing plate 6P and the third reinforcing plate 7P for the rotating plate are deformed, the rear plate 8 for the rotating plate is also deformed according to the deformation. However, the bent portions 8B and 8B are formed on the rear plate 8 for the rotating plate. Therefore, the bending (deflection amount) of the rear plate 8 for the rotating plate is absorbed as the deformation of the bent portions 8B and 8B. In the rear plate 8 for the rotating plate, since the bent portions 8B and 8B are deformed, the load acting on the welded portions in the polymerized portions 8S and 8S can be suppressed by that amount, and the welded portions can be prevented from being damaged.

Then, the tips of the overlapping portions 8S and 8S of the rear plate 8 for the rotating plate are overlapped and welded in parallel with the surfaces of the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate, and are bent. The portions 8B and 8B are formed in portions corresponding to the corner portions 6B and 7B of the second reinforcing member 6 for the rotating plate and the third reinforcing member 7 for the rotating plate. According to this configuration, the bent portions 8B and 8B of the rear plate 8 for the rotating plate are welded portions of one overlapping portion 8S and the second reinforcing plate 6P for the rotating plate, and the other overlapping portion 8S and the second reinforcing plate for the rotating plate. (3) Deformation occurs in the vicinity of the welded portion with the reinforcing plate 7P, and deformation on the tip side of the bent portions 8B and 8B is suppressed. Therefore, the load acting on the welded portion is suppressed, and damage to the welded portion can be prevented more reliably.

If the welded portion can be prevented from being damaged, it is possible to prevent dust from entering between the second reinforcing member 6 for the rotating plate and the third reinforcing member 7 for the rotating plate. Further, the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate are not parallel to each other and have different inclination angles. However, by forming the bent portions 8B and 8B on the rear plate 8 for the rotating plate, the overlapping portions 8S and 8S are parallel to the second reinforcing plate 6P for the rotating plate and the third reinforcing plate 7P for the rotating plate. It can be stacked, which facilitates the welding work in the overlapping sections 8S and 8S.

Next, the configuration of the push-in plate 53 will be described. As shown in FIGS. 6 to 8, the push plate 53 includes a push plate front plate 13, a push plate reinforcing member, and a push plate rear plate 17. The push plate 53 further includes a front plate 13 for the push plate, a reinforcing member for the push plate, and support portions 18 and 18 for the push plate that support the rear plate 17 for the push plate on both sides in the width direction.

The push plate support portions 18 and 18 are arranged on both sides in the width direction of the push plate 53, and include a pair of push plate support plates 19 and 19 arranged in parallel with each other separated in the width direction. The push plate support plates 19 and 19 are arranged in parallel with the side wall 3c. The push plate connecting plates 20 are passed to the rear portions of the push plate support plates 19 and 19, and the push plate support plates 19 and 19 of the push plate support portions 18 and 18 are connected to each other. It is fixed via. The upper support shaft boss portions 21 and 21 that insert and support each end side of the upper support shaft 55 are integrally inserted and supported at positions closer to one side of the push plate support portions 18 and 18.

The push plate front plate 13 is fixed to the push plate support portions 18 and 18 so as to pass over the front end faces of the push plate support portions 18 and 18 (push plate support plates 19 and 19), and is fixed to the push plate support portions 18 and 18 of the dust input box 3. It is extended in the width direction and extends over the entire length in the width direction. As shown in FIGS. 7 and 8, the push plate front plate 13 has a plurality of bent portions extending in the width direction, and is configured to be convex toward the front as a whole. With such a shape, when the push plate 53 rotates around the upper support shaft 55, it is easy to push the dust.

The push plate reinforcing member is fixed to the back surface (back surface) of the push plate front plate 13. The push plate reinforcing members are the push plate first reinforcing member 14 and the push plate second reinforcing member 15 arranged on the front side of the upper support shaft boss portions 21 and 21, and the push plate front plate 13 below. It is a third reinforcing member 16 for a push plate arranged at a position.

The configuration of the first reinforcing member 14 for the push plate will be described. The first reinforcing member 14 for the push plate extends between the support portions 18 and 18 for the push plate. The first reinforcing member 14 for the push plate is a pair of flanges 14F and 14F having a base end (front end) fixed to the back surface of the front plate 13 for the push plate so as to rise from the back surface, and a flange 14F. , 14P is provided with a first reinforcing plate 14P for a push plate, which is located at the tip (rear end) of 14F and is integrally formed between both flanges 14F and 14F. The first reinforcing plate 14P for the push plate is formed in a flat plate shape, and the continuous portion between the flanges 14F and 14F and the first reinforcing plate 14P for the push plate is a corner portion 141B.

The second reinforcing member 15 for the push plate has one flange 15F having a base end (front end) fixed to the back surface of the front plate 13 for the push plate so as to rise from the back surface, and the tip of the flange 15F. It is provided with a second reinforcing plate 15P for a push plate, which is located (at the end on the rear side) and is integrally formed with the flange 15F. The second reinforcing plate 15P for the push plate is formed in a flat plate shape, and the continuous portion between the flange 15F and the second reinforcing plate 15P for the push plate is a corner portion 15B.

The second reinforcing plate 15P for the push plate has a superposed portion 15S formed in parallel with the first reinforcing plate 14P for the push plate and overlapping in a state parallel to the first reinforcing plate 14P for the push plate. The polymerization portion 15S is in contact with the surface (back surface) of the first reinforcing plate 14P for the push plate over the width direction thereof. The tip of the polymerization portion 15S is welded to the first reinforcing plate 14P for the pressing plate.

The third reinforcing member 16 for the push plate is arranged on the tip end side of the push plate 53 separated from the second reinforcing member 15 for the push plate, and is provided on the back surface of the front plate 13 for the push plate in the width direction. Has been done. The third reinforcing member 16 for the push plate includes a pair of flanges 16F and 16F and flanges 16F having base ends (front ends) fixed to the back surface of the front plate 13 for the push plate so as to rise from the back surface. , A third reinforcing plate 16P for a push plate, which is located at the tip of 16F (the end on the rear side) and is integrally formed between both flanges 16F and 16F. The third reinforcing plate 16P for the push plate is formed in a flat plate shape, and the continuous portion between the flanges 16F and 16F and the third reinforcing plate 16P for the push plate is a corner portion 16B.

The second reinforcing plate 15P for the push plate and the third reinforcing plate 16P for the push plate are not parallel to each other, and for example, the inclination angles with respect to the vertical direction are different. Specifically, the second reinforcing plate 15P for the push plate is formed along the vertical direction, and the third reinforcing plate 16P for the push plate is formed so that the lower side is inclined toward the front.

The rear plate 17 for the push plate is provided so as to extend over the second reinforcing plate 15P for the push plate and the third reinforcing plate 16P for the push plate. Further, the push plate rear plate 17 is a member that prevents dust from entering between the push plate second reinforcing member 15 and the push plate third reinforcing member 16 that are arranged apart from each other.

The rear plate 17 for the push plate is a plate-shaped member extending in the width direction of the second reinforcing member 15 for the push plate. The rear plate 17 for the push plate is laminated on the surfaces of the second reinforcing plate 15P for the push plate and the third reinforcing plate 16P for the push plate over the width direction of the second reinforcing plate 15P for the push plate. And a bridge portion 17H (between the second reinforcing plate 15P for the pushing plate and the third reinforcing plate 16P for the pushing plate) between the overlapping portions 17S and 17S are integrally provided. Of the polymerized portions 17S and 17S, the bent portion 17B is formed in the overhanging portion 17H near the polymerized portion 17S on the third reinforcing plate 16P side for the push plate.

Here, as described above, the second reinforcing plate 15P for the push plate and the third reinforcing plate 16P for the push plate are not parallel to each other and have different inclination angles. However, a bent portion 17B is formed in the bridge portion 17H (between the second reinforcing plate 15P for the pushing plate and the third reinforcing plate 16P for the pushing plate) in the rear plate 17 for the pushing plate, and the bent portion 17B is formed. Is formed at a portion corresponding to the corner portion 16B of the third reinforcing member 16 for the push plate. Since the corresponding portion is in the region where the corner portion 16B is projected rearward, as described with the rotating plate 52, detailed description will not be repeated. Since the bent portion 17B is formed, one of the overlapping portions 17S and the surface (back surface) of the third reinforcing plate 16P for the pressing plate are parallel to each other.

The tips of the overlapping portions 17S and 17S are welded and fixed to the second reinforcing plate 15P for the pressing plate and the third reinforcing plate 16P for the pressing plate, respectively. The bent portion 17B is bent so as to be convex toward the rear. In other words, because both plates overlap in parallel, when the front plate bends and the reinforcing plate moves, it moves while overlapping, and the relative positions of both plates do not change, so the load on the weld can be suppressed and welding can be performed. It is possible to prevent damage to the part.

By the way, when the rotary plate 52 picks up the dust and pushes the dust into the dust storage box 2 by the push plate 53, the gap between the rotary plate front plate 4 of the rotary plate 52 and the tip of the push plate 53 is made as small as possible. In order to suppress the entrainment of dust, the rotary plate front plate 4 is curved so as to follow the trajectory of the tip of the push plate 53 around the upper support shaft 55. Therefore, the angle of the reinforcing plate in the reinforcing member provided on the back surface of the rotary plate front plate 4 is different depending on the position where the reinforcing member is provided.

On the other hand, in the push plate 53, the push plate front plate 13 is bent at a plurality of places as described above in order to facilitate pushing the dust by the operation of rotating around the upper support shaft 55. Therefore, the angle of the reinforcing plate in the reinforcing member provided on the back surface of the push plate front plate 13 is different depending on the position where the reinforcing member is provided. As a whole, the push-in plate 53 is formed so that the tip of the dust input box 3 with less moment around the upper support shaft 55, which is the swing center axis, is tapered when viewed from the width direction (side). Reinforcing members are housed in a tapered space.

In the loading device having the above configuration, the pushing plate 53 moves forward around the upper support shaft 55, so that the dust scraped up by the rotating plate 52 is pushed forward. At this time, a reaction force corresponding to the weight of the dust acts as a load on the pushing plate 53. When the load due to the dust is large, it is conceivable that the push plate front plate 13 is deformed so as to bend backward about the upper support shaft 55.

Then, the push plate first reinforcing member 14 or the push plate third reinforcing member 16 integrated with the push plate front plate 13 is deformed according to the deformation of the push plate front plate 13. However, due to the rigidity of the first reinforcing member 14 for the push plate or the third reinforcing member 16 for the push plate, excessive deformation of the push plate 53 is suppressed.

By the way, the rear plate 17 for the push plate is passed to the second reinforcing plate 15P for the push plate and the third reinforcing plate 16P for the push plate, and the rear plate 17 for the push plate forms the bent portion 17B, and the overlapping portion 17S , 17S are fixed to the second reinforcing plate 15P for the push plate and the third reinforcing plate 16P for the push plate by welding, respectively.

In the push plate 53 having this configuration, the reaction force due to dust acts on the push plate front plate 13 as a load, so that the push plate second reinforcing member 15 and the push plate third reinforcing member 16 are deformed for the push plate. If the second reinforcing plate 15P and the third reinforcing plate 16P for the push plate are deformed, the rear plate 17 for the push plate is also deformed according to the deformation. However, a bent portion 17B is formed on the rear plate 17 for the push plate. Therefore, the bending (deflection amount) of the rear plate 17 for the push plate is absorbed as the deformation of the bent portion 17B. In the rear plate 17 for the push-in plate, since the bent portion 17B is deformed, the load acting on the welded portions in the polymerized portions 17S and 17S can be suppressed by that amount, and the welded portion can be prevented from being damaged.

Then, the tip of one overlapping portion 17S of the rear plate 17 for the push plate is overlapped and welded in a state parallel to the surface of the third reinforcing plate 16P for the push plate, and the bent portion 17B is the third reinforcement for the push plate. It is formed in a portion corresponding to the corner portion 16B of the member 16. According to this configuration, the bent portion 17B of the rear plate 17 for the push plate is deformed in the vicinity of the welded portion between the overlapping portion 17S and the third reinforcing plate 16P for the push plate, and is on the tip side of the bent portion 17B. By suppressing the deformation in the welded portion, the load acting on the welded portion can be suppressed, and the welded portion can be prevented from being damaged more reliably.

If the welded portion can be prevented from being damaged, it is possible to prevent dust from entering between the second reinforcing member 15 for the push plate and the third reinforcing member 16 for the push plate. Further, the second reinforcing plate 15P for the push plate and the third reinforcing plate 16P for the push plate are not parallel to each other and have different inclination angles. However, by forming the bent portion 17B on the rear plate 17 for the push plate, the overlapping portions 17S and 17S are overlapped with the second reinforcing plate 15P for the push plate and the third reinforcing plate 16P for the push plate in a parallel state. This facilitates the welding work in the polymerized portions 17S and 17S.

In the above, one embodiment of the present invention has been taken up and described. However, the present invention is not limited to the above embodiment. For example, in the above embodiment, the push plate 53 swings around the upper support shaft 55, but the present invention is not limited to this, and for example, the push plate 53 reciprocates or rotates in a linear direction or an arc direction. It can also be configured to do so.

In the above embodiment, the case where the bent portions 8B and 8B of the rotating plate rear plate 8 are formed at two locations and the bent portions 17B of the push plate rear plate 17 are formed at one location is illustrated. However, the bent portion can also be bent at three or more points. In the above embodiment, the bent portion is configured to be convex toward the rear. However, depending on the inclination direction of the reinforcing plate for the rotating plate of the reinforcing member for the rotating plate and the reinforcing plate for the pushing plate of the pushing plate world reinforcing member, the bent portion may be convex toward the front in some cases. You can also.

In the above embodiment, the case where all the polymerized parts are welded to the reinforcing plate on which they are overlapped is illustrated. However, one of the overlapping portions of the rear plate 8 for the rotating plate and the rear plate 17 for the push plate is not welded to the reinforcing plate, but is overlapped on the surface of the reinforcing plate. You may. Further, the bent portion may be located in a connecting portion other than the portion corresponding to the corner portion. In any case, by forming the bent portion, the reinforcing plate and the rear plate can be easily stacked in parallel, so that the welding work can be easily performed with the rear plate stacked on the reinforcing plate, and the reinforcing plate and the rear plate can be stacked. Damage to the welded portion can be effectively suppressed as compared with the case where the weld is welded with a gap between them. In other words, because both plates overlap in parallel, when the front plate bends and the reinforcing plate moves, it moves while overlapping, and the relative positions of both plates do not change, so the load on the weld can be suppressed and welding can be performed. It is possible to prevent damage to the part.

In the above embodiment, in the loading device, both the rotating plate 52 and the pushing plate 53 are provided with a superposed portion to be stacked in parallel with the reinforcing plate of the reinforcing member and a post-plate formed with a bent portion, and the superposed portion is provided. The configuration in which the end portion of the sword is welded to the surface of the reinforcing plate is illustrated. However, such a rear plate may be provided only on either the rotating plate 52 or the pushing plate 53.

1 ... Dust collection vehicle, 2 ... Dust storage box, 3 ... Dust input box, 4 ... Front plate for rotating plate, 5 ... First reinforcing member for rotating plate, 5B ... Curved plate part, 5P ... First reinforcement for rotating plate Plate, 6 ... Second reinforcing member for rotating plate, 6P ... Second reinforcing plate for rotating plate, 7 ... Third reinforcing member for rotating plate, 7P ... Third reinforcing plate for rotating plate, 8 ... Rear plate for rotating plate, 8B, 8B ... Bent part, 13 ... Front plate for push plate, 14 ... First reinforcing member for push plate, 14P ... First reinforcing plate for push plate, 15 ... Second reinforcing member for push plate, 15P ... Push plate Second reinforcing plate for 16 ... Third reinforcing member for push plate, 16P ... Third reinforcing plate for push plate, 17 ... Rear plate for push plate, 17B ... Bent part, 52 ... Rotating plate, 53 ... Push plate, 54 ... Lower support shaft, 55 ... Upper support shaft

Claims (2)

A dust storage box having a storage space for accommodating dust, a dust storage box having a dust input port and connected to the rear of the dust storage box, and dust input from the input port to the storage space. Equipped with a loading device to move
The loading device includes a rotating plate that rotates to scoop up the dust that has been thrown into the dust loading box, and a pushing plate that moves the dust that has been scraped up by the rotating plate so as to push it into the storage space. With
The rotating plate and the pushing plate include a front plate arranged in the front in the direction in which the dust is moved and extended in the width direction of the dust charging box, and at least one of the rotating plate and the pushing plate is said. It is provided with a pair of reinforcing members having a reinforcing plate fixed to the back side of the front plate and extended in the width direction, and a rear plate fixed across the reinforcing plates and extended in the width direction.
The rear plate includes a bent portion between the reinforcing plates and bent in the width direction, and the end portion on the reinforcing member side reinforces at least one of the pair of reinforcing members. A dust collecting vehicle characterized in that it is stacked parallel to the back surface of the plate and welded to the reinforcing plate at a position different from the bent portion. The reinforcing member includes a flange whose base end is fixed so as to be raised on the back surface of the front plate, the reinforcing plate is integrally formed at the tip of the flange, and a continuous portion between the reinforcing plate and the flange is a corner. It is said to be a department,
The dust collecting vehicle according to claim 1, wherein the bent portion is formed at a portion corresponding to the corner portion.

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