JPH0753718Y2 - Magnet sweeper - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a magnet sweeper for collecting iron scraps and the like using a fixed magnet.

[Conventional technology]

For example, in a foundry or metal processing factory,
Since iron scraps such as iron pieces and iron particles scatter on the road surface, it is necessary to collect them, and a magnetic sweeper with a magnetic roller attached to a truck is used.

The magnet sweeper according to this conventional example is a columnar magnetic roller driven by the wheels of a truck, a scratch plate obliquely arranged on the surface of the magnetic roller, and a magnetic substance separated by the scratch plate. It was configured with a box.

[Problems to be solved by the device]

However, in the magnet sweeper according to the above conventional example, since the magnetic substance adsorbed on the magnetic roller is removed by the scratch plate, a load due to friction is generated, and the scratch plate and the magnetic roller are worn, and Depending on the case, noise may be generated.

Further, when the magnetic substance is in the form of powder, it is difficult to peel it from the magnetic roller, which also promotes the abrasion of the scratch plate.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a magnet sweeper that can smoothly collect iron scraps and the like by causing a trolley to travel.

[Means for Solving the Problems]

A magnet sweeper according to claim 1, which meets the above-mentioned object, is a frame body having a manual handle attached to a rear side thereof, a fixed shaft whose both ends are fixed to the frame body, and a rotatable shaft on both sides of the fixed shaft. A trolley having attached wheels and a wheel connected to the wheel through a one-way clutch to rotate in one direction along with the forward rotation of the wheel, and a protruding member is provided on the outer surface of the wheel at predetermined intervals. A non-magnetic drum having a slightly smaller diameter, a fixed magnet arranged in the inner rear portion of the non-magnetic drum in close proximity to the non-magnetic drum from the upper portion to the lower portion, and arranged in front of the non-magnetic drum and attracted and lifted by the non-magnetic drum. A magnetic sweeper having a collection box for dropping the collected magnetic substance to the front and collecting the magnetic substance, wherein the frame body is a quadrangle in a plan view, and the non-magnetic drum is arranged inside the frame body. The front end of the recovery box is rotatably attached to the lower front part of the frame with a gap, and the recovery box is provided with a handle protruding upward, and the fixed magnet is composed of a plurality of rectangular magnets. The rectangular parallelepiped magnet is mounted on the fixed shaft, and the mounting surface of the rectangular parallelepiped magnet is flat.

[Action]

In the magnet sweeper according to claim 1,
Since the non-magnetic drum is arranged inside the quadrangular frame in a plan view, the non-magnetic drum does not have to be adsorbed on the building's iron pillar or iron desk during use.

Further, when discharging the magnetic substance accumulated in the collection box, the handle at the upper part of the collection box is held, the collection box is rotated around the front end, and the magnetic substance is dropped from the gap between the frame and the collection box. Then, when the discharge is completed, the collection box is rotated in the reverse direction and returned to the original position.

Further, since the fixed magnet is composed of a plurality of rectangular parallelepiped magnets, mass-produced general-purpose products can be used. And, each rectangular parallelepiped magnet is attached to a fixed shaft, and is attached to a partially square tubular iron magnet mounting member in which the mounting surface of the rectangular parallelepiped magnet is flat. For that, only that part needs to be replaced.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.

As shown in FIGS. 1 to 5, a magnet sweeper 10 according to an embodiment of the present invention includes a carriage 11, a non-magnetic drum 12 attached to the carriage 11, and an inner wall of the non-magnetic drum 12 from below. The stationary magnet 12a is arranged in the vicinity of the rear side in the traveling direction to the upper part, and the recovery box 14 for the iron scrap 33, which is an example of the recovered magnetic substance, is configured. These will be described in detail below.

The dolly 11 includes a rectangular frame body 15 having a length of 400 mm to 500 mm (preferably about 460 mm) made of an iron plate, and the rectangular frame body 15.
The wheel 17 having a diameter of 180 mm to 220 mm (preferably about 200 mm) mounted via a fixed shaft 16 made of brushed round steel or the like in the rear part in the traveling direction of, and fixed to the mounting part of the fixed shaft 16 of the frame body 15 It is composed of an auxiliary frame 18 and a hand-pushing handle 19 extending in the center of the auxiliary frame 18.

As shown in FIG. 3, the non-magnetic drum 12 is made of stainless steel (SUS304) or the like and has a diameter of 145 m smaller than that of the wheel 17.
The drum side plates 20 on both sides of the non-magnetic drum 12 are composed of a cylindrical body having a thickness of m to 185 mm (preferably about 165 mm) and a wall thickness of about 3 mm.
Is rotatably attached to the fixed shaft 16 and the fixed shaft 16
Is connected to the boss portion 21 of the wheel 17 with the collar 22 interposed therebetween, and both ends thereof are fixed to the frame body 15.

A ratchet mechanism 23, which is an example of a one-way clutch, is arranged between the drum side plate 20 and the wheel 17, and the ratchet mechanism 23 includes a protruding rod 24 attached to the drum side plate 20 and the wheel 17. When the wheel 17 rotates in the direction A in FIG. 5, the rotation power is not transmitted to the non-magnetic drum 12. When 17 rotates in the B direction, the tip of the claw 26 contacts the protruding rod 24, and the non-magnetic drum 12 is driven to rotate as the wheel 17 rotates.

As shown in FIG. 3, two stainless-steel protruding members 27, which are made of the same material as the non-magnetic drum 12, are provided on the outer periphery of the non-magnetic drum 12 along the lateral lines with a slight inclination.

The clearance between the lower end of the outer peripheral surface of the non-magnetic drum 12 and the ground (floor surface) is about 17 mm to 18 mm, and the clearance between the tip of the protruding member 27 and the ground (floor surface) is about 10 mm to 15 mm. There is.

The fixed magnet 12a comprises a plurality of permanent magnet rectangular parallelepiped magnets 13 as shown in FIG. 3 and FIG.
A magnet mounting member 28 made of a thick iron plate having a four-sided partial angle and having a fixed distance from the inner wall of the non-magnetic drum 12 fixed to 16 and being mounted on the fixed shaft 16 via side plates 20a. A plurality of (12 in this embodiment) adhesives (or screws) are attached. Then, the non-magnetic drum 12 is provided in the vicinity of the inner surface of the non-magnetic drum 12 within the range of 120 to 250 degrees (preferably 180 to 250 degrees) from the bottom to the top of the non-magnetic drum 12, and the non-magnetic drum 12 of 120 to 250 degrees. The magnetic pole side is formed.

As shown in FIG. 1, the recovery box 14 has a front end rotatably supported by a pin 30 at the front portion in the traveling direction of the carriage 11 and is normally supported horizontally by a support frame 31. A handle 32 for rotating the recovery box 14 as shown by a two-dot chain line is attached to one side of the recovery box 14.

Next, explaining how to use the magnet sweeper 10 according to the present invention, in a foundry or the like, when iron scraps 33 such as iron pieces or iron particles are scattered, the magnet sweeper 10 of the present invention is carried around by a worker. When the hand-push handle 19 is gripped and pushed to run, the non-magnetic drum 12 with the protruding member 27 rotates together with the wheel 17, and when it passes over the falling iron scrap 33, the iron is generated by the magnetic force of the rectangular parallelepiped magnet 13 in the lower portion. The dust 33 is sucked and adhered to the surface of the non-magnetic drum 12,
The non-magnetic drum 12 moves upward according to the rotation. In this case, even if the flat iron scrap 33 is lifted to the upper part, there is no fear that it will roll down along the outer peripheral surface of the non-magnetic drum 12 by its own weight, but the iron scrap 33 such as a spherical or round bar material is caused by its own weight. The outer peripheral surface of the non-magnetic drum 12 rolls. However, this can be received by the projecting member 27 and lifted up as it is. Then, when it passes through the rectangular parallelepiped magnet 13 arranged at the upper part, the magnetic force is reduced, so that it is automatically dropped and stored in the collection box 14 by its own weight and the centrifugal force caused by the rotation. When the iron scraps 33 are accumulated in the collection box 14 as the work progresses, the magnet sweeper 10 is moved to a specific place and the grip 32 is grasped to
It may be discharged by rotating it as shown by a two-dot chain line in the figure.

Although the non-magnetic drum 12 is directly driven by the wheels 17 in this embodiment, it is also possible to rotate the non-magnetic drum 12 through a speed reducer or a speed increasing device, which makes the dolly 11 larger and electrically driven. Alternatively, it may be driven by an engine.

Although the ratchet mechanism 23 is used as the one-way clutch, the present invention is also applicable to a clutch (commonly called a cam clutch) using a cam mechanism.

[Effect of device]

In the magnet sweeper according to claim 1, since the non-magnetic drum is arranged inside the quadrangular frame body in a plan view, the non-magnetic drum is attracted to an iron pillar or an iron desk of a building during use. Can be prevented.

Further, since the front end of the recovery box having the handle on the upper part is rotatably attached to the lower front part of the frame with a gap, the recovery box can be rotated forward to easily attach the magnetic substance. Can be discharged. Therefore, unlike the detachable case, it is not necessary to take out the recovery box, discard the magnetic substance inside, and attach it again as it is, and the workability can be improved.

Further, since the fixed magnet is composed of a plurality of rectangular parallelepiped magnets, a general-purpose inexpensive magnet can be used, and the cost can be reduced. Since the plurality of rectangular parallelepiped magnets are attached to the magnet mounting member in the shape of a partially square tube, when replacing due to a chip or the like, only that portion needs to be replaced, and the replacement can be easily performed.

[Brief description of drawings]

1 is a schematic side view of a main part of a magnet sweeper according to an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a front sectional view thereof, FIG. 4 is a side view thereof, and FIG. Is a partially enlarged plan view of a ratchet mechanism used in the magnet sweeper, and FIG. 6 is an enlarged cross-sectional view taken along the line I--I of FIG. [Explanation of symbols] 10 …… Magnet sweeper, 11 …… Bogie, 12 …… Non-magnetic drum, 12a …… Fixed magnet, 13 …… Rectangular magnet, 14…
… Collection box, 15 …… Frame, 16 …… Fixed shaft, 17 …… Wheels, 18
…… Auxiliary frame, 19 …… Handwheel, 20 …… Drum side plate, 20a …… Side plate, 21 …… Boss part, 22 …… Color, 23…
... ratchet mechanism, 24 ... protruding rod, 25 ... mounting member,
26: claw, 27: protruding member, 28: magnet mounting member, 30
...... Pin, 31 …… Support frame, 32 …… Handle, 33 …… Scrap

Claims (1)

[Scope of utility model registration request] 1. A trolley comprising a frame body to which a hand push handle is attached on the rear side, a fixed shaft having both ends fixed to the frame body, and wheels rotatably attached to both sides of the fixed shaft. A non-magnetic drum that is connected to the wheel via a one-way clutch and rotates in one direction along with the forward rotation of the wheel, and the outer surface thereof is provided with projecting members at predetermined intervals, and has a slightly smaller diameter than the wheel; A fixed magnet that is arranged in proximity to the inside rear part of the non-magnetic drum from its upper part to a lower part, and a magnetic substance that is arranged on the front side of the non-magnetic drum and that is attracted and lifted by the non-magnetic drum is dropped forward. A magnet sweeper having a collection box for collecting, wherein the frame body is a quadrangle in a plan view, the non-magnetic drum is arranged inside the frame body, and a front end of the collection box is a frame of the frame body. Lower front The recovery box is rotatably mounted, and the recovery box is provided with a handle protruding upward. The fixed magnet is composed of a plurality of rectangular parallelepiped magnets and is mounted on the fixed shaft. A magnet sweeper, characterized in that it is attached to a magnet mounting member made of iron and having a partially square tubular shape, the mounting surface of which is flat.