SE517813C2 - Link twisting arrangement - Google Patents

Abstract

The present invention relates to an arrangement which enables each twisted, miss-oriented or crooked link (20) in an elongated chain (2) to be rotated and/or turned to its intended correct position in the chain, wherein the chain (2) is moved (M) and successive chain links are caused to move past devices (11, 12, 13, 14) that deflect the direction of chain movement. These devices are adapted to comprise at least two units, a first unit (11) adapted to deflect respective links in a first direction (2b), and a second unit (12) located downstream of said first unit (11) and adapted to deflect respective links in a second direction (2c). A second unit (12) and a third unit (13) are co-ordinated in respect of a spring-actuated (5) disc (3), which is rotatable about a rotational axis (3a).

Description

25 30 35 517 813 'rzxunuzns PREVIOUS smimnruuxtr It is thus previously known a number, each inclined link within an elongate chain, to a correct position intended for the links in the chain rotating and / or turning arrangement, by allowing link on link, to pass past the direction of movement of a chain deflecting means.

It is previously known to use as a means for chains a unit provided with an edge and where the chain link on the chain link is allowed to pass past said edge and thereby at least some oblique links will turn to a link intended for the chain. correct position.

It is also previously known to allow a chain link on a chain link of a displacement movement assigned to the chain to pass through an opening which has been assigned such dimensions as will be able to offer a free passage out of each chain link which assumes a correct position but which will to cause a blockage of the displacement movement as soon as a chain link in the chain assumes an inclined position.

Arrangements of this kind have preferably been used for short-link or long-link chains, alternatively post-chain chains with a straight design or with a twisted design.

In addition to the above application to chains, it is also previously known to form thin chain-like, and of coordinated links, chains, which can be made of precious metals, which have been used as jewelry or holders for jewelry, and which can be formed into a use with a more complicated link structure than the above, which due to its complicated shape, in many applications, has a tendency to exhibit skewed links and for these 10 15 20 25 30 35 517 813 3 j§ _-: ff: = .f1; - 'Iï =; ff; chains, it has proved difficult to turn a thus skewed link into a correct position.

The prior art also includes arrangements which, via specially driven link-turning means, are to orient each open link on the link in a specific position before a welding operation.

D1: US-A-2 450 510.

As regards the content of this patent publication, it provides an apparatus adapted for electric welding which is specially designed to be able to weld the individual links together in an elongate chain and where the welding can take place in a single continuous working operation.

Through a guide (114) and a rotatable block (55), the longitudinal stretch of the chain, before welding, is adjusted to a horizontal position.

The measurement of the chain takes place past electrical electrodes (106) and each link is held by gripping means (64) with jaws (65), which is clearest from Figure 5.

Furthermore, the use of a block (55) which has the shape of a wheel with peripheral teeth (54) cooperating with a rod (53) is indicated. The wheel (55) has an inner XV-shaped recess (56,57) to accommodate successively arriving links.

Of particular importance is that the wheel or cylinder (55) is adapted to be able to turn the links only to the longitudinal extent of the links, which appears from Figure 6.

D2: SE-B-401 794.

Here is shown and described a method for being able to manufacture high-strength chain, here it is a matter of turning the link for 10 15 20 25 30 35 517 813 link and a device for this.

This device has a construction which in principle corresponds to that described above and where it is also a question of turning link by link in an alternating direction about its longitudinal axis.

RmDoGöRnLsn rön PRESENT tipps-mums TECHNICAL! PROBLEMS Considering the fact that the technical considerations that a professional in the relevant technical field must make in order to be able to offer a solution to one or more technical problems posed is initially a necessary insight into the measures and / or the sequence of measures to be taken and a necessary choice of the means or means required and, as a result, the subsequent technical problems should be relevant in the creation of the present invention.

Taking into account the prior art, as described above, it should be seen as a technical problem to be able to create such conditions with simple measures at one, each inclined link within an elongate chain to a correct position intended for the links in the chain and / or or inversion, arrangement, which is not only directly adapted to be applied to a simple link structure or link form but can especially be applied to and can offer a good function for links of more complex design and then especially thin links included in a jewelery chain made of precious metal.

There is also a technical problem in being able to realize the significance of and the advantages associated with that in a link structure of a more complex kind and which is very thin, such as 10 l5 20 25 30 35 517 m »5 - a width of down to less than 1 mm, also allowing link on link of a displacement movement assigned to a chain to pass past a direction of movement deflecting means of a chain.

There is also a technical problem in being able to realize the significance of and the advantages associated with creating an arrangement adapted to twist oblique links, such as thin links, forming part of an elongated chain of flatter design, such as links designated armor links. .

There is also a technical problem in being able to realize the significance of and the advantages associated with allowing said link rotating means to be adapted to have at least two units, a first unit adapted to have link on link in link in a first direction and a second unit adapted to have downstream said first unit angled link upon link in a second opposite direction, in order thereby to enable oblique links to assume a correct position.

There is also a technical problem in being able to realize the significance of and the advantages associated with allowing a third unit to be adapted to have downstream said second unit have link at a link in a third direction.

There is also a technical problem in being able to realize the significance of and the advantages associated with allowing a fourth unit to be adapted to allow downstream said third unit to angle link upon link in a fourth direction.

There is also a technical problem in being able to realize the significance of and the advantages associated with allowing said deflection to take place in one and the same plane, especially when the elongated chain has a more flat shape.

This is in addition to a technical problem in being able to realize the significance of and the benefits associated with allowing link 10 15 20 25 30 35 sw 81: 6 on link to extend over at least a first unit of a chain section's own weight and of a chain assigned traction.

There is also a technical problem in being able to realize the significance of and the advantages associated with allowing said second unit to be attached to a rotatably related disc and thereby be attached to a position or position on the disc which is laterally related to a disc assigned axis of rotation .

There is a technical problem in being able to realize the significance of and the advantages associated with allowing said second unit and said third unit to be attached to a rotatably related disc and attached in positions or positions of the disc which are laterally related to a disc assigned axis of rotation .

There is also a technical problem in being able to realize the significance of and the advantages associated with allowing two, said second and third, units to be diametrically, or at least substantially diametrically, attached to a rotatable disc relative to said axis of rotation.

In particular, it should be seen as a technical problem to be able to realize the significance of and the advantages associated with allowing said disc to be spring-loaded and thereby assigned a torsional action acting against the spring force and a torsional movement caused by an increasing traction on the chain in a first direction. and in the event of a return to a normal traction force allowing the disc of the spring force to return to an initial position by a rotational movement in a second, the first direction opposite, direction.

The present invention is thus based on a, each inclined link within an elongate chain or chain to a correct position intended for the links in the chain rotating and / or turning, arrangement, where link on link of a displacement movement assigned by a chain shall pass past an angling means assigned to the direction of movement of the chain.

In such an arrangement, the present invention now specifically directs that said means be adapted to have at least two units, a first unit adapted to have link on link in a first direction and a second unit adapted to have downstream said first unit let angle at link in link in a second direction.

As proposed embodiments, falling within the scope of the inventive idea, it is indicated that a third unit should be adapted to allow downstream said second unit to be angled link upon link in a third direction.

It is further indicated that a fourth unit shall be adapted to allow downstream said third unit to angle link upon link in a fourth direction.

It is especially pointed out that in case the elongated chain or chain has a flat design, said angling shall take place in one and the same plane.

Furthermore, it is instructed to allow link on link to extend over at least one unit, the first unit, by the dead weight of a chain section and by a traction force assigned by a chain.

The invention further indicates that said second unit should be able to be attached to a rotatably related disc and fixed in a position for the disc which is laterally related to a rotation axis assigned to the disc.

Said second unit and said third unit may be attached to a pivotally related disc and attached in positions of the disc which are laterally related to a pivot axis assigned to the pivot axis.

It is further indicated that said second and third units shall be diametrically, or at least substantially diametrically, attached to the disc relative to said axis of rotation.

Said disc should advantageously be spring-loaded and can be assigned a torsional movement acting against the spring force and caused by an increased tensile force on the chain in a first direction and to allow the disc to return from the spring force to an initial position when returning to a more normal traction. by a corresponding rotational movement in a second, the first direction opposite direction.

ADVANTAGES The advantages that can mainly be considered to be characteristic of a, each oblique link within an elongated chain to a correct position intended for the links in the chain rotating and / or turning, arrangement is that thereby conditions have been created for each oblique link within an elongate chain, also a thin chain made of precious metal intended as a piece of jewelery or holder of jewelery and with a complicated link structure, it must be possible to turn it to a correct position intended for the links in the chain, by having created a by means of a displacement movement of the chain and a deflecting means, which must in any case consist of two units, be able to create such conditions that link upon link within the chain will be assigned a rotational movement initially for a deflection in a first direction and immediately then for a deflection in a second direction so that also links forming part of an elongate chain with a more platformed links s cold be able to take advantage of the arrangement. 10 15 51 7 813 j- 9 un en c I 1 u ~; - an. . 1 n o o o n n: ou-u ~ nu The arrangement is further produced by means of simple measures and simple means and will be applied to chains or chains of varying thicknesses.

What can primarily be considered as characteristic of an arrangement, in accordance with the present invention, is stated in the characterizing part of the appended claim 1.

BRIEF DESCRIPTION OF THE DRAWINGS A presently proposed arrangement, adapted to be able to influence each inclined link within an elongate chain to a correct position intended for the links in the chain by a rotating and / or turning movement, will now be described in more detail with reference to the accompanying drawing. , there; Figure 1 shows a first example of an arrangement, when this assumes a first position, where all links within a chain assume one and the same correct position, Figure 2 shows the arrangement, according to Figure 1, in the same side view but where an oblique link has hooked into a first unit, Figure 3 shows in a plan view a second example of an arrangement where only a sector or section of a circular disc is shown and where a number of arrangements according to the invention are peripherally placed and where each arrangement is adapted for a selected diameter of the chain and 10 15 20 25 517 813 _10 ..

Figure 4 shows a section through an arrangement assigned to the disc according to figure 3.

The present invention thus provides a, each inclined link within an elongate chain or chain 2 to a correct position for the links in the chain or chain 2 rotating and / or turning, arrangement, where link on link of a the displacement movement assigned to the chain or chain 2 shall pass past a means deflecting means of movement of the chain or chain.

The arrangement according to the invention can thus be used partly in a chain, heavily dimensioned, to be able to absorb large forces, partly in a thin, made of precious metal or metal alloy, chain 2, where the latter application will be described in more detail in the following. - and where the chain design of the chain can be very complicated and very narrow, say from a width of only a few mm and upwards over 2 mm.

The arrangement 1 thus uses a thin chain 2, which for a clarifying purpose is divided into a number of sub-sections, where each of these sub-sections has been assigned the reference designations 2a, 2b, 2c, 2d and 2e.

The angling means indicated by the invention is adapted in Figure 1 to have at least two units, a first unit 11 and a second unit 12.

The first unit 11 is adapted to cause the link 10 15 20 25 30 517 813 to be angled o: | ov u. _l] __ on a link belonging to section 2a in a first direction to form section 2b, a second unit 12 is adapted to have downstream said first unit 11 angled link on link in section 2b in a second direction, as a section 2c.

A third unit 13 is adapted to have downstream said second unit 12 angled link upon link belonging to section 2c in a third direction to form a section 2d.

A fourth unit 14 is adapted to have downstream said third unit 13 angled link upon link in section 2d in a fourth direction to form section 2e.

Figure 1 shows that all of the mentioned angles via the units 11, 12, 13 and 14 take place in one and the same plane.

It is obvious that if there is a reason for this, one or more angles can take place in one or more other planes.

Furthermore, it is shown in Figure 1 that link on link will extend over the unit 11 of the dead weight of the chain section 2a and of a traction force "F1" assigned to a chain.

The force generated by the dead weight of section 2a has been assigned the reference designation "F2" and is normally equal, with the exception of friction occurring within the units.

Furthermore, it is shown only schematically in figure 1 that said second unit 12 is attached to a rotatably related disc 3 and fixed in a position for the disc 3 which is laterally related to a disc 3 rotating shaft 3a. 10 15 20 25 30 517 813 n | o v nu _ 12 _ The disc 3 is attached to a foundation 4 via said axis of rotation 3a.

Said second unit 12 and said third unit 13 are further attached to the rotatably related disc 3 and fixed in positions of the disc which are laterally oriented or laterally related to a disc assigned axis of rotation 3a.

Thus, it is shown that said second and third units 12, 13 are diametrically, or at least substantially diametrically, attached to the disc 3 relative to said axis of rotation 3a.

Said disc 3 is further spring-loaded via a spring 5, which is fixed at one end of the disc 3 and at its other end fixedly related to a chassis or foundation 4.

The disc can thus be assigned by the spring 5 an action against the spring force and a torsional movement caused by increased traction on the chain 2 in a first direction "A" and on a return to a normal traction the disc returns the spring force to an initial position, shown in figure 1 , by a rotational movement in a second, the first direction opposite, direction "B".

Referring to Figure 2, the arrangement is shown in a position where an inclined link 20 is illustrated attached to a first unit 11, the traction force "F1" will exceed the dead weight of the section 2a and the resulting force "F2" and thereby cause the disc to rotate. 3 clockwise, with an increasing force acting on section 2b as well as another angle for section 2b, whereby it can be assumed that the link 20 is so twisted that it will still pass obliquely past the unit 11.

Therefore, when the link 20 has passed section 2b and occupies position 10 15 20 25 30 517 813 - ø n; v. _ 13 _ tion 20 'adjacent to the second unit 12, the link 20' is rotated or angled in an opposite direction and thus section 2c will have only links in their correct positions. Although an inclined link within a chain 2, especially if the chain 2 and the link are of a more flat type, such as an armor link, can only be rotated to a correct position via a rotational movement in one direction or the other relative to the correct links. orientation, however, it can be assumed that an oblique link, in some exceptional cases, can pass units 11 and 12, without turning to the correct position, to unit 13 and unit 14, and practical experience with this supplementation suggests that section 2e will only show links with correct positions.

The displacement movement of the links within the chain 2 has been assigned the reference designation "M".

As soon as an inclined link 20 'passes the arrangement and in this case the unit 12, the disc 3 will turn by the spring force to its initial position, according to figure 1.

With reference to Figure 3, there is shown another embodiment and the one with a chassis 4 shaped like a circular disc, where only one circular sector is shown in more detail.

This circular sector has next to and along its periphery a number of arrangements, 1, 1a, 1b, each adapted for a selected thickness of the chain 2. Thus, it is proposed here that a minimum arrangement should be adapted for a chain with a diameter or width of 0.40 mm and a largest arrangement is adapted for a chain with a diameter of just over 2.00 mm.

The arrangement corresponding to the current chain is selected and this 10 15 20 25 30 517 813 jš_-ë fi zff; - 'Iï = iïïr: | o o ou ._l4_ arrangement can be rotated by the chassis and the disc 4 to a suitable position in the set or machine which is to produce metal-displaying objects.

However, the function of the device and arrangement according to Figures 3 and 4 is not quite the same as described above in connection with Figures 1 and 2.

In these figures, the reference numeral 41 has been assigned to a relatively rotatable disc 4, and the reference numeral 42 is intended to illustrate different wire mounts or chain mounts for different thicknesses.

The reference numeral 43 illustrates a knob with which the disc 41 can be rotated via a shaft 44 to a desired position, depending on the selected thickness of the chain, 45 indicates a bracket for the disc or the chassis 4, 46 refers to a protective cover, 47 intends to illustrate the position for a wire or chain resting against the unit 13, 48 is intended to illustrate a stop attached to the unit 13 in the form of a plastic ball and 49 illustrates a helical spring.

The spring 49 serves as an abutment so that the units 12, 13 can assume an arbitrary setting position, such as the position according to Figure 1 or the position according to Figure 2.

There is no resilience, but the units 12, 13 must be regarded as fixed in their setting.

The invention is of course not limited to the above-mentioned exemplary embodiment, but may undergo modifications within the scope of the inventive concept illustrated in the following claims.

Claims (10)

10 15 20 25 30 517 813 - IS Patent Claim 1. Each oblique link (20), within an elongate chain or chain (2) to a correct position, rotating and / or turning arrangement intended for the links in the chain, where link to link of a chain or chain assigned displacement. movement means (M) shall pass past a plurality of angling means (11, 12, 13, 14) 14, characterized in that said means in order to cause oblique (or transverse) links to assume a position which is correct for the chain stretch, is adapted to have at least two units (11, l2), a first fixed unit (ll) so adapted that it allows angled link upon link within the chain (2) to a first direction (2b) downstream of said first unit (12) so adapted that it (ll) towards a second direction. and a second fixed unit allows angles link to link within the chain (2) Arrangement according to claim 1, characterized in that a third unit (13) is adapted to cause downstream said second unit (12) to angle link upon link within the chain towards a third direction. Arrangement according to claim 2, characterized in that a fourth unit (14) is adapted to have downstream of said third unit (13) angled link upon link within the chain towards a fourth direction. Arrangement according to claim 1 or 2, characterized in that said deflection of link on link within the chain takes place in one and the same plane. lO 15 20 25 30 -Iø Arrangement according to claim 1, characterized in that link on link within the chain is stretched at least over the first fixed unit (II) by the tare weight of a chain or chain section and by a traction force assigned to a chain or chain. Arrangement according to claim 1, characterized therefrom, (12) related disc (3) and fixed in a position for the disc such that said second movable unit is attached to a rotatably side-related a disc assigned axis of rotation (3a). Arrangement according to claim 6, characterized in that (12) (13) are attached to a rotatably related disc (3) and attached to said second unit and said third unit in positions of the disc which are laterally related to a disk assigned axis of rotation. Arrangement according to claim 6 or 7, characterized in that said second and third units are diametrically, or at least substantially diametrically, fastened to the disc relative to said axis of rotation. Arrangement according to claim 6, characterized in that said disc is spring-loaded and can be assigned a torsional movement acting against the spring force and a torsional movement caused by an increasing traction on the chain in a first direction and that on a return to a normal traction the disc returns from the spring force to an initial position by a rotational movement in a second, the first direction opposite, direction. Arrangement set with a number of arrangements according to one of the preceding claims, characterized in that a number, different from each other but with respect to the size of the chain, are arranged peripherally on a disc which is rotatably arranged for to be able to orient an arrangement to a selected position.