JP3115534U - Metal piece collection vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new metal capable of adsorbing metal pieces in a stable posture and removing metal pieces after adsorption more easily, with respect to a vehicle for recovering metal pieces scattered on a road surface or the like by magnetic force. A vehicle for collecting one piece is provided.
A metal piece recovery vehicle 10 of the present invention is a vehicle equipped with a recovery device 1 including a magnet piece unit 3 slidably accommodated in a casing 2, and the magnet piece unit 3 is The magnet pieces 32 adjacent to each other on the attracting surface MS side are arranged with different magnetic poles, and when the magnet piece unit 3 is extracted from the casing 2, the shifter is operated and slid by the operator's foot operation. The metal piece A adhering to the suction surface MS is dropped and collected.
[Selection] Figure 1

Description

  The present invention relates to a vehicle that adsorbs metal pieces that can be scattered on the road surface or floors of factories by magnetic force, improving the functionality of the device itself and the ease of use as an actual machine based on the operator's standpoint. The present invention relates to a new metal piece recovery vehicle.

  Many metal pieces such as nails, empty cans, bolts, nuts, shavings, and small sharp scraps may be scattered on the road surface of an expressway or the floor of a factory. Conventionally, in order to collect such a metal piece, for example, a method of sucking with a rotating brush has been often employed, and such a collecting device is mounted on a vehicle to perform an operation. However, since this method always rotates the brush, etc. during the work, there are certain limitations in terms of cost reduction and work efficiency. For this reason, the present applicant tries a collection method that attracts metal pieces by magnetic force. Have been filed for patent applications (see, for example, Patent Document 1). In this Patent Document 1, a magnet piece unit is slidably housed in a non-magnetic casing, and when a metal piece is adsorbed, the metal piece is adsorbed on the bottom surface (adsorption surface) of the casing by a magnetic force. When removing the metal piece from the attracting surface, the magnet piece unit is removed from the casing, and the magnetic force attraction action is released to recover the fall.

However, even in Patent Document 1 using this magnetic adsorption action, there is still room for improvement in the following points.
That is, in Patent Document 1, a plurality of permanent magnets are arranged in a row. At this time, for example, as shown in FIG. 10, the magnetic poles (magnetism) of the permanent magnet 34 'are the same on the attracting surface MS side. Then (in FIG. 10, the magnetic poles of all the permanent magnets 34 'are set to N poles), the metal piece A is substantially orthogonal to the longitudinal direction of the attracting surface MS according to the direction of the magnetic field formed by each permanent magnet 34'. Adsorbed to the state. In this state, for example, the long metal piece A protrudes from the adsorption surface MS, and it cannot be said that it is necessarily a stable adsorption state. In particular, since the recovery device 1 ′ is usually provided in a vehicle such as a road sweeper, the vibration of the vehicle is transmitted not a little, and the metal piece A protruding from the adsorption surface MS may fall due to this vibration. There was room for improvement in terms.

Further, when the magnet piece unit 3 'is pulled out from the casing 2', the operator holds the handle 35 'attached to the magnet piece unit 3' by hand and pulls it out. I had to. Such work may be performed many times a day, which may be a considerable physical burden on the worker. Further, when the adsorbed metal piece A is large, the force required for extraction increases, and a considerable force may be required. Of course, even in such a case, once the magnet piece unit 3 'is pulled out from the casing 2', after that, although not so much force is required, it is pulled out with considerable force at the beginning of pulling out. As an operator, the reaction must be taken into account, and there is room for improvement in this respect.
JP 11-117248 A

  The present invention has been made in view of such a background, and relates to a metal piece recovery vehicle using magnetic force that has been developed by the applicant and has been applied for a patent. It is a technical subject to develop a new metal piece collection vehicle that makes it possible to adsorb in a posture and remove metal pieces after adsorption more easily.

  That is, the vehicle for collecting metal pieces according to claim 1 is equipped with a collecting device comprising a casing made of a non-magnetic material and a magnet piece unit slidably accommodated in the casing, and mounted on the road surface. Or it is a vehicle which collect | recovers the metal pieces scattered on running surfaces, such as a floor surface, by the magnetic adsorption | suction action of a collection | recovery apparatus, Comprising: The said magnet piece unit makes an adjacent magnet piece differ in a magnetic pole mutually on the adsorption surface side. It is characterized by being arranged.

  In addition to the requirement of claim 1, the metal piece recovery vehicle according to claim 2 slides the magnet piece unit out of the casing, operates the shifter by foot operation, extracts it from the casing, and attracts it. It is characterized in that the metal piece adhered to the surface is dropped and collected.

  Furthermore, in the metal piece recovery vehicle according to claim 3, in addition to the requirements of claim 1 or 2, the shifter is of a toe conveyor type fixedly installed above the casing, It is characterized in that the back surface is pushed out of the casing.

  According to a fourth aspect of the present invention, in addition to the requirements of the first, second or third aspect, the casing has a lateral dimension corresponding to the longitudinal direction of the vehicle of about 2 with respect to the magnet piece unit. When the metal piece adhering to the attracting surface is dropped and recovered, the magnet piece unit is slid in the longitudinal direction of the vehicle in the casing to perform the drop recovery work. This is what makes it a feature.

  According to a fifth aspect of the present invention, in addition to the requirements of the first, second, or third aspect, the casing is formed so that the magnet piece unit can rotate about its longitudinal direction. Therefore, when the metal piece adhered to the attracting surface is dropped and collected, the magnet piece unit is rotated in the casing to perform the drop collecting work.

The above-described problems can be solved by using the configuration of the invention described in each of the claims.
In other words, according to the first aspect of the present invention, the adjacent magnet pieces are arranged so that the magnetic poles (polarities) are different from each other on the attracting surface side, so that the metal pieces are attracted along the longitudinal direction of the attracting surface. For this reason, the metal piece does not protrude from the adsorption surface and hardly falls due to vibration of the vehicle or the like.

  Further, according to the second aspect of the present invention, the magnet piece unit is extracted from the casing by the foot operation, and the adsorbed metal piece is dropped and collected. Work can be done and the burden on the worker's body can be reduced. Depending on the amount of adsorbed metal pieces, it can be considered that a large force is required to extract the magnet piece unit. Even when a load is applied, the work can be performed reliably.

  Further, according to the invention of claim 3, since the magnet piece unit is pulled out by the tow conveyor type shifter provided above the casing, the shifter does not hinder the adsorption of the metal piece and the subsequent fall recovery work, Work more efficiently.

  According to the fourth aspect of the present invention, the magnet piece unit protrudes in the width direction of the vehicle during this operation because the magnet piece unit is slid in the front-rear direction of the vehicle and the adsorbed metal piece is dropped and collected. Work without any problems. Therefore, the drop recovery operation can be performed efficiently even in a narrow space.

  According to the fifth aspect of the invention, since the magnet piece unit is rotated in the casing to perform the fall recovery work, the work can be performed without projecting the magnet piece unit in the width direction of the vehicle during this work. Even when only a small work space is available, it can be handled.

  The best mode of the present invention is as described in the following examples. In the description, the outline of the metal piece collecting vehicle 10 will be described first, and then the collecting device 1 mounted on the vehicle will be described.

The metal piece collecting vehicle 10 is for collecting the metal pieces A scattered on the road surface and the like to clean the running surface. The metal piece collecting vehicle 10 is shown as an example in FIG. In addition, a plurality of wheels 11 (when distinguishing a front wheel and a rear wheel, the front wheel is 11A and the rear wheel is 11B), a plurality of brushes 12 provided between the front wheel 11A and the rear wheel 11B, and a loading platform are provided. The suction device 13 and the metal piece A collection device 1 provided immediately before the rear wheel 11B are provided.
A part of the metal pieces A scattered on the traveling surface is swept up by the plurality of brushes 12 and stored in the suction device 13, and the rest is collected cleanly by the collection device 1.
Note that the road sweeper type is not necessarily applied to the metal piece collection vehicle 10. For example, in a road inspection vehicle called a garbage truck, a water truck, or a patrol car or a factory in each local government. The collection device 1 can be mounted on various vehicles such as a transport vehicle for transporting parts and the like, and a motorcycle (motorcycle).

Next, the collection device 1 will be described. For example, as shown in FIG. 1, the recovery device 1 is installed immediately before the rear wheel 11 </ b> B. As an example, the recovery device 1 has a casing 2, a magnet piece unit 3 slidably accommodated in the casing 2, a lock The mechanism 4 is provided. In the present embodiment, the magnet piece unit 3 is mechanically extracted from the casing 2 by a shifter 51 described later.
In addition, since the collection | recovery apparatus 1 is attached below the vehicle (vehicle 10 for metal piece collection | recovery), the magnet piece unit 3 is extracted so that it may protrude in a vehicle width direction as an example. In the figure, the symbol MS indicates the suction surface of the casing 2.
Here, each direction in the collection | recovery apparatus 1 (magnet piece unit 3) is defined as follows. First, as shown in FIG. 1B, the longitudinal direction of the suction surface MS, that is, the direction corresponding to the vehicle width direction in the case of a vehicle is defined as “vertical”. In the case of a vehicle, a direction corresponding to the front-rear direction is referred to as “lateral”, and an up-down direction perpendicular to both the directions is referred to as “height”. Hereinafter, each component of the collection device 1 will be described.

  First, the casing 2 will be described. The casing 2 is formed in an elongated cylindrical shape from a non-magnetic material such as stainless steel, copper, aluminum, or synthetic resin. For example, in FIG. The casing body 21 is configured by covering with a lid 22. Reference numeral 23 denotes an opening for receiving the magnet piece unit 3 in the casing 2. When the collection device 1 is attached to the vehicle, the magnet piece is arranged by arranging the opening 23 toward the side of the vehicle. The unit 3 is configured to be slidable in the vehicle width direction. In this embodiment, the casing body 21 and the lid body 22 are formed separately and joined by welding or the like. For example, as shown in FIG. 3, the casing body 21 is not particularly used without using the lid body 22. You may form with a single square pipe-shaped member.

Further, a bracket 24 for mounting the collection device 1 on the vehicle is provided at the upper part of the casing 2, and a catch flap 25 and a squeezing plate 26 are provided at the lower part of the casing 2. Hereinafter, the catch flap 25 and the ironing plate 26 will be described.
The catch flap 25 is formed as a screen using synthetic rubber or the like as an example, and prevents the metal piece A once pulled up by a magnetic force from dropping. That is, the metal pieces A scattered on the road surface and the like float from the road surface and the like due to the magnetic adsorption action, but not all of this directly attracts the adsorption surface MS, and in particular, the metal piece collection vehicle 10 has a relatively high speed. When the vehicle is traveling at the same time, since the collection device 1 also moves at the same speed as the vehicle, the sucked metal piece A may not fall well on the bottom of the casing 2 due to this momentum and fall again. . For this reason, about such a metal piece A, this momentum (impact) is absorbed by contact with the catch flap 25, and it is made to adhere reliably to the adsorption surface MS. For this reason, the catch flap 25 is provided at least on the rear wheel 11B side of the casing 2, that is, on the rear side with respect to the vehicle traveling direction as shown in FIG. 2, for example. As shown by, it may be provided in all except the traveling direction side.

  Next, the ironing plate 26 will be described. As an example, this is formed in a square bar shape by a nonmagnetic material such as stainless steel, copper, aluminum, or synthetic resin, and is provided substantially perpendicular to the sliding direction of the magnet piece unit 3 on the attracting surface MS. The ironing plate 26 is used to prevent the metal piece A from moving and drop when the adsorbed metal piece A is removed from the adsorption surface MS. That is, when removing the metal piece A adhering to the attracting surface MS, the magnet piece unit 3 housed in the casing 2 is slid, but the metal piece A also moves on the attracting surface MS along with this sliding. Therefore, this movement is prevented by the ironing plate 26, and the metal piece A is dropped in a state where the magnetic force of the magnet piece unit 3 does not reach. For this reason, the metal pieces A generally fall on the ironing board 26 after being collected. Note that an appropriate number of the ironing plates 26 is formed on the suction surface MS.

  Next, the magnet piece unit 3 that generates magnetic force will be described. This is slidably housed in the casing 2, and in this embodiment, a plurality of magnet pieces 32 are arranged in a bottomed cylindrical box-shaped container 31. More specifically, a plurality of permanent magnets 34 are arranged in a row on a yoke 33 formed of a magnetic metal such as steel. The yoke 33 serves to stably attach the permanent magnet 34 and to prevent an adverse effect such as iron loss caused by the magnetic force on other members.

  Here, as shown in FIGS. 1B and 1A, adjacent permanent magnets 34 are arranged with different magnetic poles (polarities) on the attracting surface MS side. As a result, a magnetic field on the attracting surface MS is generated in the longitudinal direction, so that the metal piece A is attracted substantially along the longitudinal direction as shown in FIG. Such a suction posture is a posture along the longitudinal direction of the suction surface MS even if the metal piece A is a long object, so that the end portion of the metal piece A does not protrude from the suction surface MS. Even if the vibration from the vehicle is transmitted to the recovery device 1, the metal piece A once adsorbed hardly falls.

In the present embodiment, the permanent magnet 34 is applied as the magnet piece 32, but an electromagnet can also be applied.
Further, in this embodiment, the magnet piece unit 3 is basically extracted by a shifter 51 described later, but the magnet piece unit 3 is provided with a handle 35 so that an operator can directly extract it by hand. Formed.

  Next, the lock mechanism 4 will be described. As an example, as shown in FIG. 1B, the lock mechanism 4 includes a lock pin 41, a pin receiving hole 42 formed in the casing 2, and a pin holding hole 43 formed in the magnet piece unit 3. Thus, the magnet piece unit 3 is prevented from falling out of the casing 2 during recovery running or the like. In order to lock the magnet piece unit 3, the magnet piece unit 3 is housed in the casing 2, and then the lock pin 41 is inserted into the pin receiving hole 42 and the pin holding hole 43 to be locked. For this reason, in order to prevent the lock pin 41 from coming off, the tip portion thereof is formed in an appropriate shape such as a male screw or a ball shape, and the tip portion of the pin holding hole 43 is also formed in this shape. Are formed in the shape of a female screw or a ball catch.

  Next, the slide mechanism 5 will be described. The slide mechanism 5 is a mechanism for extracting the magnet piece unit 3 from the casing 2, and is substantially extracted by the shifter 51 as described above. In particular, in this embodiment, as shown in FIGS. 5 and 6 as an example, a conveyor 52 formed by winding a chain 54 around a pair of sprockets 53 is applied as a shifter 51. Specifically, a toe pin 55 is provided on the back side of the magnet piece unit 3, and an attachment 56 that engages with the toe pin 55 is provided on the chain 54. The magnet piece unit 3 is extracted from the casing 2 by pushing 55. For this reason, a notch for allowing the tow pin 55 to pass therethrough is formed on the upper side of the casing 2 such as the lid 22, and this is used as a tow pin path 57.

  Further, if the magnet piece unit 3 is connected to the casing 2 or the vehicle by a return spring or the like, when the extracted magnet piece unit 3 is once stored in the casing 2, it is automatically stored by the contraction action of the return spring. It is possible to return to the position (stored state). In this case, for example, a one-way clutch structure that transmits a driving force only in one direction (extraction direction) is incorporated in the conveyor 52, and the conveyor 52 is freed as the magnet piece unit 3, that is, the toe pin 55 returns (return). It is preferable that the attachment 56 that has been rotated and engaged with the toe pin 55 is returned to the initial position together.

  In the present embodiment, a toe conveyor type conveyor 52 is applied as the shifter 51, but an air cylinder, a hydraulic cylinder, or the like can also be applied (see FIG. 8B). In the present embodiment, the bottom surface of the casing 2 serves as the suction surface MS to which the metal piece A is attached. Therefore, the conveyor 52 is provided above the casing 2. Can be provided smoothly, it is also possible to provide a conveyor 52 below the casing 2 or on the side thereof.

In addition, the shifter 51 (conveyor 52) mentioned above can be driven by an operator's foot operation, for example, as shown in FIG.
In this case, the foot lever 61 is biased with respect to the rotation shaft 62 so as to always return upward even when the foot is stepped on, like a kick starter lever of a motorcycle (motorcycle). Further, a ratchet mechanism 63 composed of a pawl 64 and a pawl wheel 65 is incorporated in the rotating shaft 62 to prevent reverse rotation, and further, a pair of gears 66 allows rotation in a step-down direction by foot operation. The rotation is converted to the rotation of the conveyor 52 in the extraction direction (forward rotation direction). As a result, the operator can pull out the magnet piece unit 3 by stepping down the foot lever 61 several times without bending his body, and can perform the fall recovery work of the metal piece A very easily. In particular, when such work is repeated many times during the day, the physical burden on the worker is greatly reduced.

The recovery device 1 mounted on the metal piece recovery vehicle 10 has the basic structure as described above. Hereinafter, an aspect of recovering the metal pieces A scattered on the road surface and the like by the recovery device 1 will be described.
(1) Setting of apparatus First, the distance between the road surface on which the metal pieces A are scattered and the bottom surface of the casing 2 that adsorbs the metal pieces A is appropriately set depending on the vehicle speed, the size of the adsorption surface MS, and the like. At this time, the distance between the road surface and the catch flap 25 is also set as appropriate.

(2) Adsorption of metal pieces The metal pieces A scattered on the road surface and the like are attracted by the magnetic force generated from the magnet piece unit 3 as the recovery device 1 passes. At that time, since the recovery device 1 also moves at the same speed as the metal piece recovery vehicle 10, not only the metal piece A directly adheres to the suction surface MS but also, for example, as shown by a solid line in FIG. In addition, after ascending from the road surface, it is possible to first hit the catch flap 25 and adhere to the suction surface MS so as to be rebound from here. Further, as shown by a two-dot chain line in FIG. 3, when the impact is large even if it has once contacted the suction surface MS, it bounces at the suction surface MS, hits the catch flap 25 at the rear, and again from here, the suction surface MS again. Those that adhere to the surface are also conceivable. In any case, the catch flap 25 prevents the metal piece A, which has been once pulled up by the magnetic adsorption force, from dropping, and more reliably attracts the metal piece A.

(3) Adsorption posture of metal piece In the present invention, adjacent permanent magnets 34 are arranged with different magnetic poles (polarities) on the adsorption surface MS side, so the metal piece adhering to the adsorption surface MS. As shown in FIG. 4B, A is a stable suction posture along the longitudinal direction of the suction surface MS. For this reason, even if the metal piece A is a long object, the metal piece A does not protrude from the suction surface MS and can be stably attached to the suction surface MS. A will not fall.

(4) Removal of adsorbed metal piece The metal piece A adhering to the adsorption surface MS is removed after the vehicle travels. For this, first, the lock pin 41 is pulled out from the pin holding hole 43 and the pin receiving hole 42, and the lock mechanism 4 is released. Thereafter, the magnet piece unit 3 housed in the casing 2 is extracted by the slide mechanism 5. At this time, in this embodiment, as shown in FIGS. 5 and 6, the conveyor 52 is rotationally driven, and the toe pin 55 is pushed by the attachment 56 provided on the chain 54 to slide the magnet piece unit 3. As the magnet piece unit 3 slides, the metal piece A attached to the attracting surface MS also moves so as to slide on the attracting surface MS. However, as shown in FIG. Is blocked by the ironing plate 26. For this reason, the metal pieces A are gradually accumulated near the ironing plate 26 and fall when the magnetic force of the magnet piece unit 3 does not reach.
In addition, when the conveyor 52 is driven by the operator's foot operation and the metal piece A is dropped and collected, it is not necessary for the operator to bend the waist and grip the handle 35. The physical burden on the person can be greatly reduced.

[Other Examples]
The present invention has the above-described embodiment as one basic technical idea, but the following modifications can be considered. That is, in all the embodiments shown in FIGS. 1 to 7, the magnet piece unit 3 is extracted in the vehicle width direction, but the sliding direction of the magnet piece unit 3 is not necessarily limited to this. For example, in the embodiment shown in FIG. 8, the lateral dimension of the casing 2 (dimension corresponding to the longitudinal direction of the vehicle) is formed to be about twice as long as the magnet piece unit 3, and the adsorbed metal piece A is dropped. When collecting, the magnet piece unit 3 is slid in the longitudinal direction of the vehicle in the casing 2. In this case, the ironing plate 26 is also formed in the vehicle width direction on the suction surface MS.

The embodiment shown in FIG. 9 is an embodiment in which the lower part of the casing 2 is formed in a semicircular cross section and the magnet piece unit 3 is formed in a substantially fan shape. In this case, the magnet piece unit 3 is rotated approximately 180 degrees, and the attracted metal piece A is dropped and collected.
The “slide” described in the present specification means that the magnet piece unit 3 is moved in a direction substantially orthogonal to the magnetic force attraction direction. Therefore, the magnet (attraction surface MS) is curved in a sector shape. The above-mentioned rotation operation that is formed in a shape and follows the suction surface MS is also a kind of slide.
8 and 9 described above, when removing the metal piece A from the attracting surface MS, the magnet piece unit 3 does not protrude in the vehicle width direction. It can be done easily.

FIG. 1 is a vehicle side view (a) showing a metal piece collecting vehicle of the present invention, and an enlarged perspective view (b) showing a metal piece collecting device mounted on the vehicle. It is a perspective view of the state which looked up the recovery device from the bottom side. It is sectional drawing which shows collectively a mode that a metal piece is adsorb | sucked with a collection | recovery apparatus and this collection | recovery apparatus. It is sectional drawing (a) of the collection | recovery apparatus in a longitudinal direction same as the above, and the bottom view (b) which shows the adsorption | suction state of a metal piece. It is a perspective view which shows a mode that a magnet piece unit is extruded from a casing with a conveyor. It is explanatory drawing which shows a mode that the magnet piece unit is extracted from a casing and the adsorbed metal piece is fall-recovered. It is explanatory drawing which shows a mode that the conveyor was driven by the operator's foot operation, and the magnet piece unit was slid. They are a perspective view (a) which shows the Example of the collection | recovery apparatus which made the magnet piece unit slide to the front-back direction of a vehicle, and explanatory drawing (b) seen from the vehicle side. It is explanatory drawing which shows the collection | recovery apparatus which rotated the magnet piece unit formed in the fan-shaped cross section to the inversion state, and fell and collect | recovered the adsorbed metal piece. It is sectional drawing (a) which shows the arrangement | positioning condition which made the magnetic pole of all the permanent magnets the same in the attraction | suction surface side, and the bottom view (b) which shows the adsorption | suction state of the metal piece by this arrangement | positioning condition.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Collection | recovery apparatus 2 Casing 3 Magnet piece unit 4 Lock mechanism 5 Slide mechanism 10 Metal piece collection vehicle 11 Wheel 11A Front wheel 11B Rear wheel 12 Brush 13 Suction device 21 Casing body 22 Lid body 23 Opening part 24 Bracket 25 Catch flap 26 Ironing board 31 Box-shaped container 32 Magnet piece 33 Yoke 34 Permanent magnet 35 Handle 41 Lock pin 42 Pin receiving hole 43 Pin holding hole 51 Shifter 52 Conveyor 53 Sprocket 54 Chain 55 Tow pin 56 Attachment 57 Tow pin path 61 Foot lever 62 Rotating shaft 63 Ratchet mechanism 64 pawl 65 pawl wheel 66 gear A metal piece MS adsorption surface

Claims (5)

A metal piece scattered on a running surface such as a road surface or a floor is mounted on the lower side of the vehicle with a recovery device comprising a casing made of a non-magnetic material and a magnet piece unit slidably accommodated in the casing. Is a vehicle that collects by the magnetic adsorption action of the collection device,
In the magnet piece unit, adjacent magnet pieces are arranged with magnetic poles different from each other on the attracting surface side.   2. When the magnet piece unit is slid and extracted from the casing, the shifter is operated by a foot operation to extract from the casing, and the metal piece attached to the attracting surface is dropped and collected. Vehicle for collecting metal pieces.   The metal piece recovery vehicle according to claim 1 or 2, wherein the shifter is of a toe conveyor type fixedly installed above the casing, and the rear face of the magnet piece unit is pushed out of the casing. . The casing is formed so that a lateral dimension corresponding to the longitudinal direction of the vehicle is about twice as long as the magnet piece unit.
2. When the metal piece attached to the attracting surface is dropped and collected, the magnet piece unit is slid in the longitudinal direction of the vehicle in the casing to perform the drop collecting work. 2. Vehicle for collecting metal pieces according to 2 or 3. The casing is formed so that the magnet piece unit can rotate about the longitudinal direction as an axis,
4. The drop recovery operation according to claim 1, 2 or 3, wherein when the metal piece adhering to the adsorption surface is dropped and recovered, the magnet piece unit is rotated in the casing to perform the drop recovery operation. Vehicle for collecting metal pieces.