JPH0428605B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a magnetic belt in a magnetic continuous transport system.

[Background of the invention]

New transportation systems are being researched and proposed in order to respond to transportation demands that are diversifying year by year.

The magnetic continuous transportation system is one of the new transportation systems developed as a result of many years of research by the inventors of the present invention.

In this magnetic continuous conveyance system, as shown in a perspective view of a part of the outline in Fig. 1, magnetic belt conveyor units B are arranged at a predetermined interval between traveling paths A laid in parallel. On the other hand, an electromagnet D is attached to a vehicle C traveling on the traveling path A, and the magnetic belt Ba of the magnetic belt conveyor unit B is driven in a desired direction at a desired speed by a drive motor Bb. At the same time, the electromagnet D of the vehicle C is energized and attracted to the magnetic belt Ba, and the vehicle C is caused to travel by the attraction force between the electromagnet D and the magnetic belt Ba.

According to the results of research conducted by the inventors of the present invention, important points regarding the structure of the magnetic belt described above are as follows. That is, (a) a magnetic belt can not only ensure a large tractive force, but also reduce bending rigidity, and further reduce heat generation of the belt during driving.

(b) Each magnetic member is capable of minimizing the bending stress of the belt and reducing the bending rigidity of the belt when the magnetic belt is subjected to a bending action on the pulley during operation of the magnetic belt.

(c) The magnetic members are firmly held on the belt body, and there is no risk that the magnetic members will separate from the belt body even if a large traction force and centrifugal force are applied to each magnetic member when the vehicle is running.

[Purpose of the invention]

An object of the present invention is to provide an excellent magnetic belt that satisfies all of the above-mentioned important structural points of a magnetic belt.

[Structure of the invention]

That is, in the present invention, magnetic members are arranged in a row in the width direction at intervals in the longitudinal direction of the belt body on the outer peripheral surface of the belt body, which has a reinforcing layer embedded therein and a power transmission part formed on the inner peripheral surface. The present invention also provides a magnetic belt, characterized in that a part embedded in the belt body is formed on both sides of each magnetic member, and the power transmission part is composed of a V-belt part and a timing belt part. That is.

[Embodiments of the invention]

Hereinafter, the present invention will be specifically described by way of examples with reference to the drawings.

FIGS. 2 to 5 show magnetic belts in the magnetic continuous transport system according to each embodiment of the present invention, and FIG. b is an explanatory rear view of the same as above, and Fig. 3 is the second
Fig. aX-X arrow cross-sectional enlarged view, Fig. 4 is a partially cutaway perspective explanatory view showing the same reinforcing layer as above, Fig. 5 is the second
FIG. 2 is an enlarged cross-sectional view taken along line aX-X in FIG. 2, showing the embodiment.

In the figure, E denotes a magnetic belt in a magnetic continuous transport system according to an embodiment of the present invention, in which a reinforcing layer 30 is embedded inside and a power transmission section K is formed on the inner peripheral surface 10a of the belt main body 10 on the outer peripheral surface 10b. , magnetic members 20 are arranged in a row in the width direction at intervals in the longitudinal direction of the belt body 10, and each magnetic member 20 has a portion 21 embedded in the belt body.
A V-belt section 1 is formed in the power transmission section.
1 and a timing belt portion 12.

To further explain this structure, the belt main body 10 is made of a flexible material such as rubber, and has a V-belt section 11 and a timing belt section 12 on its inner circumferential surface 10a, as described above. A power transmission section K is formed.

In this embodiment, the V-belt portion 11
is provided on the inner circumferential surface 10a of the belt main body 10 along its axis, that is, located at the center in the width direction of the belt main body 10, and continuously in the longitudinal direction, and this V-belt section 11 A pair of left and right timing belt portions 12 are formed continuously in the longitudinal direction so as to be located on both the left and right sides of the timing belt portion 12 .

As described above, in this embodiment, the driving force for driving the magnetic belt E is obtained by providing the pair of left and right timing belt parts 12 on the inner peripheral surface 10a of the belt main body 10. Not only can a reliable and large traction force be ensured, but the bending rigidity of the magnetic belt E can be significantly reduced, making it possible to reduce the diameter of the pulley for driving the magnetic belt E, and further reducing the heat generated by the belt during driving. Furthermore, since the V-belt section 11 is arranged between the pair of left and right timing belt sections 12, the magnetic belt E can be removed from the pulley during operation. It is possible to reliably prevent them from leaving.

Note that if recesses (not shown) are formed on the inner circumferential side of the V-belt section 11 at intervals in the longitudinal direction, when the magnetic belt E is subjected to a bending action on the pulley during operation. , this magnetic belt E
The bending stress of the magnetic belt E can be further reduced, the bending rigidity of the present magnetic belt E can be reduced, and the diameter of the pulley can be further reduced.

Further, in this embodiment, as shown in FIG.
The formation position of each of the adjacent magnetic members 2
It is made to match the position of the space between 0's. In other words, the center of each convex portion 12b formed between each concave portion 12a is made to coincide with the center of each magnetic member 20.

Therefore, the bending rigidity of the magnetic belt E described above can be reduced, and the diameter of the pulley can be further reduced.

Furthermore, as described above, each timing belt portion 1
2 and the center of each convex portion 12b of each of the magnetic members 2
As a result, as shown in FIGS. 3 and 5, each convex portion 12b of each timing belt portion 12 is arranged at a position facing the buried portion 21 of the magnetic member 20. This means that
When the magnetic belt E is in operation, the magnetic member 20
It is possible to significantly alleviate the stress that the vicinity of the buried portion 21 of the magnetic member 20 receives from the pulley of the drive motor that drives the present magnetic belt E, and to reduce the interference of the buried portion 21 of the magnetic member 20 with the pulley. Therefore, the durability of the magnetic member 20 in the vicinity of the buried portion 21 can be greatly improved, and noise can also be reduced.

Further, in this embodiment, as shown in FIGS. 3 and 5, a cover made of plain-woven cotton cloth and rubber is provided to cover the surfaces of the V-belt section 11 and each timing belt section 12 that constitute the power transmission section K. A cross 13 is provided, and this cover cloth 13 prevents the V-belt section 11 and each timing belt section 12 from cracking, and also maintains an appropriate frictional force with the pulley of the drive motor when driving the magnetic belt E. It is made so that you can get it.

In addition, each magnetic member 20 described above is a strip-shaped piece of iron having the required dimensions in length, width, and height, as shown in FIGS. 2a and b in each of the present embodiments, and the belt body Embedded portions 21 in the belt body 10 are respectively formed on the 10 side.

In the first embodiment shown in FIGS. 2 and 3, each magnetic member 20 is attached to the belt body 10 by embedding the buried portion 21 in the belt body 10 and By arranging a later-described side reinforcing layer 30b on the upper surface side of the buried portion 21, that is, on the outer circumferential surface 10b side of the belt body 10, over the entire circumference of the belt body 10, the buried portion 21 is firmly held on the belt body 10. Furthermore, each buried portion 21 is fastened to each other by a string-like lock portion 40 made of a rubberized blind cord (about 4 cords), and the magnetic member 20 is secured together with a center reinforcing layer 30a to be described later. It is firmly attached to the belt body 10.

Therefore, even when a large traction force and centrifugal force are applied to each magnetic member 20 when traveling with a vehicle, there is no fear that the magnetic member 20 will separate from the belt body 10.

Further, as described above, the string-shaped locking member 40 works in conjunction with the center reinforcing layer 30a to prevent the magnetic member 20 from separating from the belt body 10 during operation of the magnetic belt E, and furthermore, This has the effect of firmly fixing each magnetic member 20 so that it can maintain a predetermined position during manufacturing of the present magnetic belt E, that is, during molding and vulcanization.

Further, as described above, since the magnetic members 20 are arranged in a row in the width direction at regular intervals in the longitudinal direction of the belt main body 10, the magnetic belt E is subjected to a bending action on the pulley during operation. At this time, the bending stress of the magnetic belt E can be minimized. As a result, the bending rigidity of the present magnetic belt E can be reduced, and the diameter of the pulley can be reduced.

Next, the reinforcing layer 30 will be explained. In the first embodiment, as shown in FIG. Center reinforcing layer 30a that mainly reinforces the belt body 10
As described above, each embedded portion 2 of each magnetic member 20
1, that is, the side reinforcing layer 30b that is embedded in the outer circumferential surface 10b side of the belt main body 10 and firmly holds each magnetic member 20 on the belt main body 10.
It is composed of.

As shown in detail in FIG. 4, this reinforcing layer 30 is made by calender-coating reinforcing cords 31a arranged at intervals in the width direction of the belt body 10 with a rubber compound 31b that has good adhesion to the cords. Reinforcement cords 3 are arranged in a blind pattern on the outer peripheral surface of the main reinforcement layer 31 to cover the main reinforcement layer 31.
A breaker layer 32 formed by calender-coating a rubber compound 32b is integrally attached to 2a.

The main reinforcing layer 31 mentioned above is formed to have a thickness of about 5 mm in this embodiment, and the reinforcing cords 31a are made of steel cords with a diameter of 2.8 mm and a tensile strength of 800 kg per piece. ing.

However, it goes without saying that a synthetic resin cord such as a polyester cord, nylon cord, or Kevlar cord may be used as the reinforcing cord 31a.

Further, the breaker layer 32 is formed to have a thickness of about 1 mm in this embodiment, and the reinforcing cord 32a
1260D/2,40 pieces/50mm blind-like nylon cord (polyester cord, textile cord, etc. may also be used) is used, and this reinforcing cord 3
The cord angle (crossing angle) of the reinforcing cord 2a with respect to the reinforcing cord 31a is 45 to 70 degrees.

This breaker layer 32 is a main reinforcing layer 31 constituting the reinforcing layer 30 when manufacturing the magnetic belt E.
The reinforcing cord 31a forming the main reinforcing layer 31 acts as a stabilizing layer to prevent the reinforcing cord 31a from being disturbed by external forces, etc., and furthermore, the reinforcing cord 3 constituting the main reinforcing layer 31 is
It has the effect of acting as a buffer band that prevents separation between 1a and the rubber compound 31b. Therefore, when used under low load and low stress, it is not necessarily necessary to use the breaker layer 32.

Next, a magnetic belt according to a second embodiment of the present invention will be described, which is shown in FIG. 5 as an enlarged cross-sectional view taken along line aX--X in FIG.

The main structure of the magnetic belt of this embodiment is the same as that of the magnetic belt of the first embodiment shown in FIGS. 2 and 3, so a detailed explanation will be omitted here. The structural difference between this embodiment and the first embodiment lies in the means for attaching each magnetic member 20 to the belt body 10.

That is, in this embodiment, each magnetic member 20 is attached to the belt body 10 by embedding the buried portion 21 in the belt body 10 and attaching a reinforcing bar 50 to the buried portion 21, as shown in FIG. By inserting the embedded part 21 into the belt main body 10
The reinforcing layer 3
0, a magnetic member 20 is firmly attached to the belt body 10.

Therefore, even when a large traction force and centrifugal force are applied to each magnetic member 20 when the vehicle is running, there is no fear that the magnetic member 20 will separate from the belt body 10.

〔Effect of the invention〕

Since the present invention is configured as described above, it has the following effects. That is, (a) Since the belt body has a power transmission section formed on its inner circumferential surface consisting of a V-belt section and a timing belt section, the driving force for driving the magnetic belt is obtained from this timing belt section. This not only ensures a reliable and large traction force, but also significantly reduces the bending rigidity of this magnetic belt, allowing the diameter of the pulley for driving this magnetic belt to be reduced, and moreover, it is possible to reduce the diameter of the belt during driving. It can also reduce heat generation, greatly improve durability, and further reduce V
The belt portion can reliably prevent the magnetic belt from coming off the pulley during operation.

(b) Since the magnetic members are arranged in rows in the width direction at regular intervals in the longitudinal direction of the belt body, when the magnetic belt is subjected to a bending action on the pulley during operation, the magnetic belt bends. Stress can be minimized. Therefore, the bending rigidity of the present magnetic belt can be reduced. (c) Since the magnetic members each have a buried portion in the belt body on the belt body side, this buried portion can be buried in the belt body, and this buried portion can also be can be firmly held on the belt body with a reinforcing layer or the like. Therefore, even if large traction force and centrifugal force act on each magnetic member when the vehicle is running, there is no fear that the magnetic member will separate from the belt body.

[Brief explanation of drawings]

FIG. 1 is a perspective explanatory diagram showing an overview of the magnetic continuous transport system, and FIGS. 2 to 5 show magnetic belts in the magnetic continuous transport system according to each embodiment of the present invention. Fig. 2a is an explanatory plan view with a part of the first embodiment cut away, Fig. 2b is an explanatory rear view of the same as above, Fig. 3 is an enlarged cross-sectional view of Fig. 2 aX-X, and Fig. 4 is a reinforcement of the same as above. FIG. 5 is an enlarged cross-sectional view taken along line aX-X in FIG. 2 showing the second embodiment. 10... Belt main body, 10a... Inner circumferential surface of the belt main body, 10b... Outer circumferential surface of the belt main body, K...
Power transmission section, 11... V-belt section, 12... Timing belt section, 20... Magnetic member, 21... Buried section, 30... Reinforcement layer.

Claims (1)

[Claims] 1. On the outer circumferential surface of the belt body, which has a reinforcing layer embedded inside and a power transmission portion formed on the inner circumferential surface, magnetic members are arranged in a row in the width direction at intervals in the longitudinal direction of this belt body, and each A magnetic belt, characterized in that each of the magnetic members has a portion embedded in the belt body, and the power transmission portion includes a V-belt portion and a timing belt portion.