JPS6135519Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a magnetic roller support device, and its purpose is to provide a device in which the magnetic roller tilts according to the inclination of the wall to be attracted, and can always obtain sufficient adsorption force. It's about doing.

For example, a boat block 1 as shown in Fig.
, the fillet weld 4 between the bottom plate 2 and the longitudinal 3
When performing pre-painting treatment or substrate preparation, in order to have the work carried out by an unmanned self-propelled abrasive device,
It is necessary to run the traveling cart along the longitudinal axis 3. Note that 5 is a transformer. 2 and 3 show a self-propelled polishing device, and 6a and 6b are running carts 7.
8 is a guide wheel attached to the front bottom of the traveling truck 7, 9 is a driving wheel attached to the rear of the traveling truck 7, and 10 is a driving wheel 9. 11 is a polishing tool mounted on the traveling carriage 7, and 12 is a polishing disk of the polishing tool. As shown in FIGS. 2 and 3, it is conceivable that the traveling carriage 7 is made to travel along the longitudinal axis 3 by attracting the magnet rollers 6a and 6b to the longitudinal axis 3. However, as shown in FIG.
A gap δ is generated between the outer circumferential surface of b and the longitudinal 3, and as a result, the attraction force of the magnetic rollers 6a, 6b to the longitudinal 3 is significantly reduced. As a result, a situation occurs in which the traveling carriage 7 cannot be expected to move normally along the longitudinal axis 3.

Therefore, the present invention avoids the above-mentioned drawbacks by providing a lever that is rotatable around a first rotating shaft extending in the front-rear direction of the traveling truck and attaching a magnet roller to this lever. An embodiment of the present invention will be described below based on FIGS. 5 to 7.

Reference numeral 13 denotes a base plate having an L-shaped cross section, and is fixed to the traveling carriage 7 so that a pin 14 implanted as a first rotating shaft extends along the front-rear direction of the traveling carriage 7. 15 has a hole 16 at one end that engages with the pin 14;
is an L-shaped lever with a hole in the hole 1 at the other end.
A long hole notch 17 is provided on the side surface A that is perpendicular to the side surface on which the hole 6 is bored. 18 is lever 1
This pin 18 is implanted in a direction perpendicular to the pin 14, and the magnet rollers 6a, 6b are attached to this pin 18. . A bolt 19 has one end fixed to the base plate 13, and the other end extends upward through the notch 17 of the lever 15. Reference numerals 20 and 21 denote first and second springs that urge the lever 15 to rotate around the pin 14.
The first spring 20 is inserted between the base plate 13 and the lever 15, and the second spring 21 is inserted between the nut 22 attached to the other end of the bolt 19 and the lever 15.
It is installed between. FIG. 7 shows how the base plate 13 is attached to the traveling carriage 7, and 23 is a pneumatic multi-needle chisel for polishing the fillet weld 4;
Reference numeral 25 designates an angle sander with a wire brush 26 for processing the side surface of the longitudinal 3 and a wire brush 27 for processing the bottom plate 2 attached to the tips thereof, and these sanding tools 23, 24, and 25 are connected to a buffer support (not shown). ] is attached to the traveling trolley 7 via.
In this FIG. 7, the drive wheels 9 are driven by separate air motors 28 and 29.

Note that the lever 15 normally stops at a rotational position where the biasing force of the first spring 20 and the biasing force of the second spring 21 are balanced.

With this configuration, the magnet roller 6
Due to the adsorption force of a, the lever 15 rotates around the pin 14 in accordance with the inclination of the longitudinal 3 in a direction in which the gap δ disappears between the outer peripheral surface of the magnet roller 6a and the longitudinal 3, and the gap δ is reduced. until the position where the biasing force of the first spring 20 or the second spring 21 at the pin 14 position, which tries to bias in the opposite direction to the rotation direction, and the attraction force of the magnet roller 6a are balanced. The magnet roller 6 rotates.
A state is reached in which sufficient adsorption force to the longitudinal axis 3 is obtained by a, and the traveling carriage 7 can be made to travel along the longitudinal axis 3 by itself. The same applies to the magnet roller 6a.

As described above, the magnetic roller support device of the present invention includes a lever whose one end is supported by the first rotating shaft extending in the front-rear direction of the traveling truck and whose other end is rotatable around the first rotating shaft. and a second shaft perpendicular to the first rotation axis on the one end side of the lever.
A magnet roller is provided that can rotate around the rotation axis of the lever, and a spring is provided at the other end of the lever to bias the rotation of the lever. Therefore, when attached to the side of a traveling vehicle, the traveling vehicle will not be attracted. The lever that supports the magnet roller is held at a rotational position determined by the biasing force of the spring until it is set on the wall, and when the traveling cart is set on the wall to be attracted, the lever that supports the magnet roller is Since the lever rotates in a direction that reduces the gap between the magnet roller and the wall to be attracted by the attraction force to the attraction wall, it is possible to obtain a sufficient attraction force to make the traveling cart run along the wall to be attracted. It is possible.

[Brief explanation of drawings]

Fig. 1 is an external perspective view of the boat block, Figs. 2 to 4 are explanatory diagrams of the present invention, Fig. 2 is a plan view of the self-propelled cleaning device, and Fig. 3 is a side view of the device. Fig. 4 is a front view of main parts showing the relationship between the magnet roller and the wall to be attracted, Figs. 5 to 7 show an embodiment of the present invention, and Fig. 5 is a side view of the magnet roller support device. , FIG. 6 is a front view of the device, and FIG. 7 is a plan view of the traveling carriage. 1... Boat block, 2... Bottom plate, 3... Longe, 4... Fillet welded part, 5... Transformer, 6
a, 6b...Magnetic roller, 7...Traveling trolley, 8...Guide wheel, 9...Drive wheel, 10...
Drive device, 11... Grinding tool, 12... Polishing disk, 13... Base plate, 14... Pin [first rotating shaft], 15... Lever, 16... Hole, 17...
...Notch, 18...Pin [second rotating shaft], 1
9... Bolt, 20, 21... First and second springs, 22... Nut.

Claims (1)

[Scope of utility model registration request] This is a support device for a magnetic roller attached to the side of a traveling vehicle, one end of which is supported by a first rotating shaft extending in the front-rear direction of the traveling vehicle, and the other end rotating around the first rotating shaft. a lever that can be rotated, a magnet roller that is rotatable about a second rotation axis that is perpendicular to the first rotation axis is provided at the one end of the lever, and a magnet roller that is rotatable about a second rotation axis that is orthogonal to the first rotation axis; A magnetic roller support device characterized by being provided with a spring that biases the magnetic roller.