JPH1017125A - Magnet type chain belt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a magnet type chain belt to reduce a pitch between chain elements, also be adaptable to a small drum, and besides simple in the structure of the chain element, and firm. SOLUTION: A number of chain elements 2 each having a permanent magnet plate 4 are intercoupled through respective pivotal pins 3 to constitute a magnet type chain belt 1. The chain belt 2 is so formed that a magnet plate 4 is nipped between a first and a second link plate 5 and 6 made of a magnetic substance and the link plates 5 and 6 are connected at the two ends by coupling members 7 made of a non-magnetic substance. The link plates 5 and 6 are provided with first and second pulls 5c and 6c to couple the pivotal pin 3 to the adjoining other chain element 2. The chain elements 2 and 2 are directly intercoupled through intercoupling of the pulls 5c and 6c by the pivotal pin 3 and a pitch between the adjoining chain elements 2 and 2 is low. The link plates 5 and 6 form a core by which the magnet plate 4 is nipped, structure is simplified, and since the magnet plate 4 makes contact with the link plates 5 and 6 with a large area, the link plates 5 and 6 are hardly deformed by a load and the magnet plate 4 is firmly held.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic chain belt which is formed by connecting a number of chain elements holding permanent magnets by pivot pins, and which rotates by being magnetically attracted to a driving drum.

[0002]

2. Description of the Related Art There is known a magnetic chain belt in which a number of chain elements holding permanent magnets are connected by pivot pins. In this conventional magnetic chain belt, adjacent chain elements are connected at both ends in the width direction of the belt by a pivot pin via a connecting member. Each chain element has a magnetic attraction body holding a permanent magnet plate. The magnetic attraction body is constituted by sandwiching a permanent magnet plate between two iron plates or the like from both side surfaces in the extending direction of the belt. The magnetic attraction body is sandwiched between a pair of holding members made of non-magnetic material at both ends in the width direction of the belt, and is fixed with a tightening bolt passed between the opposite holding members.

[0003]

In the above-mentioned conventional magnetic chain belt, since a connecting member is interposed between the chain elements, the pitch of the chain becomes relatively large, and when the belt is hung on a small-diameter drum. Is poorly adapted to the outer periphery and easily slips. Further, there is another problem that the metal holding member holding the magnetic attraction body is warped and the magnetic attraction body is easily dropped. Accordingly, an object of the present invention is to provide a strong magnet type chain belt in which the pitch between each chain element is relatively small and can be applied to a small-diameter drum, and the structure of the chain element is relatively simple. And

[0004]

According to the present invention, in order to solve the above-mentioned problems, in a magnetic chain belt 1 in which a number of chain elements 2 holding a permanent magnet plate 4 are connected by pivot pins 3, A magnet plate 4 is sandwiched between a pair of first and second pairs of magnetic link plates 5 and 6 that are opposed to each other at a distance, and a pair of link plates 7 are formed at both ends by non-magnetic coupling members 7. 5 and 6 are connected and the magnet plate 4
And the link plates 5 and 6 are provided with first and second pulls 5c and 6c for coupling to the other adjacent chain elements 2 with the pivot pins 3, respectively, to form the chain element 2. . Since the chain elements 2, 2 are directly connected by connecting the tabs 5c, 6c of the link plates 5, 6 with the pivot pins 3, the pitch between the adjacent chain elements 2, 2 is reduced. Since the link plates 5 and 6 form an iron core sandwiching the magnet plate 4, the structure is simple, and the magnet plate 4 contacts the link plates 5 and 6 with a large area in the extension direction of the belt 1 under load. Therefore, the link plates 5 and 6 are hardly deformed, and the magnet plate 4 is held firmly.

[0005]

Embodiments of the present invention will be described with reference to the drawings. 1 is a plan view of a part of a magnetic chain belt according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a side view thereof,
FIG. 4 is an exploded perspective view of the chain element.

In the figure, a chain belt 1 is formed by connecting a number of chain elements 2 holding a permanent magnet plate 4 by pivot pins 3.

[0007] The chain element 2 is composed of a pair of first and second link plates 5, 6 which are arranged opposite to each other with a space therebetween.
And the magnet plate 4 held between the pair of link plates 5 and 6, the holding frame 8 surrounding the magnet plate 4, and the pair of link plates 5 and 6 are connected at both ends in the width direction of the belt. And a coupling member 7. The link plates 5 and 6 are made of a magnetic material such as iron, and the holding frame 8 and the coupling member 7 are made of a non-magnetic material such as stainless steel.

In the illustrated embodiment, the magnet plate 4 has a rectangular plate shape. The first link plate 5 is a magnet plate 4
It comprises a rectangular holding plate portion 5a which is slightly larger, a tenon portion 5b protruding from both ends thereof, and two pullers 5c protruding from the holding plate portion 5a on the side opposite to the magnet plate 4. The holding plate portion 5a has a fitting recess 5d for fitting the magnet plate 4 on the magnet plate 4 side. The tenon portion 5b is formed with a pin hole 5e penetrating in the belt extension direction (FIGS. 3 and 4). The two pulls 5c are formed at intervals in the center of the holding plate portion 5a, and have pin insertion holes 5f penetrating in the width direction of the belt. The second link plate 6 includes a holding plate portion 6a having the same shape as the first link plate 5,
Mortise 6b, fitting recess 6d, pin hole 6e, pin insertion hole 6
f. On the side of the holding plate portion 6a opposite to the magnet plate 4, 3
Two pulls 6c protrude. Three pullers 6c
Are arranged at the center of the holding plate portion 5a, and lateral members are arranged on both sides thereof at an interval.
A pull 5 of another adjacent chain element 2
c can intervene. A pin insertion hole 6f penetrating in the width direction of the belt is also formed in the pull handle 6c, and the pivot pin 3 is inserted into this. The pivot pin 3 is made of a magnetic material. The holding frame 8 has an outer shape of a link plate 5,
6, a holding space 8a in which the magnet plate 4 is fitted in the center.
, And is held between four pairs of link plates 5 and 6 so as to surround four sides of the magnet plate 4. The holding frame 8 has a tenon portion 8b and a pin hole 8c having the same shape as the link plates 5 and 6.

In the illustrated embodiment, the connecting member 7 is
It has a rectangular frame shape and is composed of a binding frame made of stainless steel. The tenon portions 5b, 6b, 8b of the link plates 5, 6 and the holding frame 8 can be fitted into the rectangular openings 7a of the coupling member 7. The coupling member 7 has a pin hole 7b penetrating in the direction in which the belt extends. This pin hole 7b
To the pin holes 5e, 6e, 8c of the tenon portions 5b, 6b, 8b fitted in the openings 7a, where the connecting pins 9
, The link plates 5 and 6 are bound. The connecting member 7 may be formed of another member such as a bolt or a nut for directly connecting the ends of the link plates 5 and 6.

In the chain belt 1 constructed as described above, the chain elements 2, 2 are directly connected by connecting the tabs 5c, 6c of the link plates 5, 6 with the pivot pins 3. Therefore, the pitch between the adjacent chain elements 2 is reduced. Since the link plates 5 and 6 are structural materials that receive a load and constitute an iron core that sandwiches the magnet plate 4, the structure is simple. Since the magnet plate 4 contacts the link plates 5 and 6 with a large area in the extension direction of the belt to which the load is applied, the link plates 5 and 6 are hardly deformed and the magnet plate 4 is held firmly. Since the magnet plate 4 is held in the holding recesses 5d and 6d between the link plates 5 and 6, there is no need for so high dimensional accuracy.

[0011]

As described above, according to the present invention, in the magnetic chain belt 1 in which a large number of chain elements 2 holding the permanent magnet plates 4 are connected by the pivot pins 3, they are opposed to each other at intervals. The magnet plate 4 is sandwiched between the first and second pair of magnetic material link plates 5 and 6 and the pair of link plates 5 and 6 are connected at both ends by non-magnetic material connecting members 7. The link plates 5 and 6 are provided with first and second pullers 5c and 6c for connecting to the adjacent other chain elements 2 with the pivot pins 3 respectively. Since the element 2 is configured, the pitch between each chain element is relatively small, and the chain element can be applied to a small-diameter drum without any trouble. Further, the structure of the chain element is relatively simple, but a strong magnetic chain belt is provided. Can be.

[Brief description of the drawings]

FIG. 1 is a plan view of a part of a magnetic chain belt according to the present invention.

FIG. 2 is a front view of a part of the magnetic chain belt according to the present invention.

FIG. 3 is a side view of a part of the magnetic chain belt according to the present invention.

FIG. 4 is an exploded perspective view of a chain element.

[Explanation of symbols]

 Reference Signs List 1 chain belt 2 chain element 3 pivot pin 4 magnet plate 5 first link plate 5c first pull 6 second link plate 6c second pull 7 coupling member

Claims (3)

[Claims] 1. A magnetic chain belt, comprising a plurality of chain elements holding permanent magnets connected by a pivot pin, which is magnetically attracted to a drive drum and rotates, wherein the chain elements are spaced apart from each other. And the first
And a second pair of magnetic link plates, a magnet plate held between the pair of link plates, and a non-magnetic coupling member that couples the pair of link plates at both ends, The magnetic chain belt according to claim 1, wherein the first and second link plates are provided with first and second pullers for coupling to adjacent other chain members by magnetic pivot pins. . 2. The method according to claim 1, wherein the first link plate is provided with the second link plate.
A mating recess for receiving the magnet plate on a side facing the link plate, and a second pull of a second link plate of the other chain element adjacent to one on the opposite side. A first puller that can be combined with a hand; the second link plate has a fitting recess for receiving the magnet plate on a surface facing the first link plate; Has, on the opposite side, a second pull which can be combined with a first pull of the first link plate of the other chain element adjacent to the other, wherein the adjacent chain elements are sequentially 2. The magnetic chain belt according to claim 1, wherein the first puller and the second puller are connected by the pivot pin. 3. The magnet type according to claim 1, wherein the coupling member is a binding frame that fits at both ends of the first and second link plates and binds them. Chain belt.