AT520878A1 - DEVICE FOR LOADING ON A RACK FOR TERMINAL TERMINALS - Google Patents

Abstract

The invention relates to a device for latching onto a mounting rail (3) for terminal blocks, which has at least one housing (2) and at least one fastening device (1) for fastening the device to the mounting rail (3), wherein the fastening device (1) at least one Holding part (13, 13a, 13b) with at least one retaining lug (14) for locking with the support rail (3) in a resting position, and the holding part (13, 13a, 13b) of the resting position in an open position by a movement of Entriegelungsarms (11) of the fastening device (1) is movable. The object of the invention is to provide a device which is as simple as possible and consumed as little space and as easy as possible attachable to a mounting rail and removable again. This is achieved in that a connection between the holding part (13, 13a, 13b) and the Entriegelungsarm (11) via a slotted guide, wherein the slotted guide has a guide groove (4) and a pin (5) arranged therein, and the guide groove (4) has at least one side wall (41) which runs at least in sections such that during the movement of the unlocking arm (11) a force is exerted on the holding part (13, 13a, 13b) whose direction of force is from a direction of movement (7) of the Unlocking arm (11) is different.

Description

The invention relates to a device for latching onto a DIN rail for terminal blocks, which has at least one housing and at least one fastening device for fastening the device to the mounting rail, wherein the fastening device has at least one holding part with at least one retaining lug for latching to the mounting rail in a resting position, and the holding part is movable from the resting position to an open position by a movement of an unlocking arm of the fixing device.

There are a variety of devices are known which can be attached to the organization of usually horizontally mounted on a wall mounting rails, such as fuses, shooters and the like. It is essential that the devices are sufficiently firmly connected to the mounting rails to prevent accidental release. At the same time they should, however, if they are to be removed by the user, be easily solvable. The space required for attachment or detachment laterally, above and below the device should also be kept as low as possible, so that several devices can be arranged side by side or two superposed mounting rails as close to each other as possible. For this purpose, a number of attachment mechanisms is already known.

Here, under resting position is understood to mean a position of the holding part, in which the retaining lug rests against a holding surface of the support rail, when the device is arranged as intended on a mounting rail. In the open position, however, a position is understood in which the retaining lug does not bear against the retaining surface and the device can thus be detached from the mounting rail.

DE 10 2013 111 551 B3 describes a fastening device which has holding parts with retaining lugs, which can be brought into a open position via a rotational movement from a resting position applied to the mounting rail. It is a complex transmission mechanism necessary so that on the opposite side of the support rail, which is usually the only easily accessible to the user side, this movement can be initiated. This also requires a lot of space in the housing, which must be made larger.

WO 2013/054873 A1 describes a housing with a

Fastening device, in which at the top of a Entriegelungsarm is arranged, which brings by pulling an extension, the holding parts in the open position. This is just as unfavorable because sufficient space must be provided on the upper side in order to detach the device from the mounting rail.

The object of the invention is therefore to provide a device which is as simple as possible and consumes as little space and as easily as possible attachable to a mounting rail and removable again.

This object is achieved in that the connection between the holding part and Entriegelungsarm via a slotted guide, wherein the slotted guide has a guide groove and a pin disposed therein, and the guide groove has at least one side wall which at least partially extends such that during movement of the Entriegelungsarms (11), which brings the holding part (13, 13 a, 13 b) of the resting position in an open position, a force is exerted on the holding part, the direction of force of a direction of movement (7) of the Entriegelungsarms (11) is different.

The direction of movement of the unlocking arm is preferably understood to mean that direction which the unlocking arm makes during the movement when at least one holding part is brought from the resting position into the open position.

By using a slotted guide, which is simple and inexpensive, the movement of the Entriegelungsarms can cause movement of the holding part, these movements have different directions and the distance covered can be different sizes. This can be the

Movement direction of Entriegelungsarms are optimally selected for the user and it must be taken with little regard to the direction of movement of the holding part. In addition, the handle parts of the Entriegelungsarms used by the user for switching can be arranged at various points of the device. For example, the gripping parts of the unlocking arm can thereby be arranged on the front side of the housing opposite the mounting rail, whereby no additional space has to be provided on the sides and top and bottom of the device so that the device can still be removed. This allows a particularly easy to handle use and allows the dense as possible installation of devices.

By adjusting the angle of the portion by which a force is exerted on the holding part in the movement of the Entriegelungsarms, with respect to the direction of movement of the Entriegelungsarms also the degree of adjustment of the holding member can be selected by the movement of the Entriegelungsarms. If this angle is very flat, the unlocking arm must be moved more than if the angle is steeper. In other words, the actuating travel of the unlocking arm is greater at a shallower angle.

Preferably, the movement of the Entriegelungsarms is a substantially linear. For example, it offers a direction of movement, which behaves normal to the mounting rail in the installed position of the device and thus normal to the wall. In one embodiment, pulling the

Entriegelungsarms away from the support rail, a movement of the holding part of the resting position in the open position and thus cause a loosening of the device of the mounting rail. A corresponding opposite movement of the Entriegelungsarms can move the holding part back into the resting position. Of course, the directions of movement could also be chosen vice versa.

The guide groove can be designed as a slot, wherein the pin is guided substantially on both side walls of the slot. Alternatively, the guide groove can also be chosen to be larger, as a result of which the pin bears at least in sections only on one side wall. In such embodiments, it is particularly advantageous if elastic elements are provided which direct or push the pin in a certain direction, so that the pin can be guided as intended.

Due to the arrangement of pin and guide or adaptation of the shape of pin and guide, can be selected exactly in which position the holding member is at a predetermined position of Entriegelungsarms.

The retaining lugs preferably have holding surfaces which are essentially normal to the direction of movement of the unlocking arm. As a result, a solid, positive connection between the retaining lugs and the support rail is made possible, which can not easily solve by itself.

The pin can be arranged either on the holding part or on Entriegelungsarm, the guide groove on the corresponding other part. It is advantageous if the pin is arranged on the holding part and the guide groove on the unlocking. For a simple embodiment is found, in which the holding part can be made small. The pin may be fixedly connected to the holding part or movably inserted into an opening of the holding part in which he has a defined game.

Furthermore, it can be provided that the fastening device has at least two opposing holding parts with mutually facing retaining lugs. As a result, the mounting rail can be enclosed from both sides and the stability of the connection can be increased. It is particularly advantageous if the opposite holding parts are connected to the same Entriegelungsarm. In order for both halves can be solved simultaneously, which causes a simplification of the embodiment. It can also be avoided that for reasons of space, one of the two holding parts must be immovable, whereby the tilting of the device for removing and attaching to the mounting rail is no longer necessary.

Furthermore, it can be provided that at least one holding part has an elastic tongue which, at least in the open position, rests tensioned against a stop. Thereby, the holding part can be returned to the resting position when it is in an open position and does not have enough force on the Entriegelungsarm. At the same time it can come to an automatic locking, when the holding part is in resting position, while the device is approximated to a mounting rail. With a suitable design of guide surfaces of the holding part of this can slide when applied to the mounting rail in the open or half-open position and as soon as the holding part has included the support rail, the holding part is automatically returned by the elastic tongue in the resting position. This eliminates the need to use the unlocking arm to secure the device to a mounting rail.

It is particularly advantageous in this sense, when the elastic tongue rests at least partially stretched even in resting position on the stop. As a result, the resting position can be further stabilized.

If at least one holding part is pivotable about an axis of rotation with respect to the housing, then the holding part can be moved quickly between resting position and open position.

In an advantageous embodiment, it is provided that the axis of rotation runs essentially parallel to the direction of movement of the unlocking arm. In this case, for example, the holding part can be designed as extending along the support rail part and the slide guide can be arranged on a broad side of the holding part, while the rotation axis is arranged on the opposite broad side. As a result, the holding part is tilted obliquely when moving into the open position, so that the retaining lug no longer projects beyond the mounting rail. Here are understood by broadsides those sides of the holding part, which are substantially normal to the main extension direction of the support rail and bordering on these. In other words, the broad sides limit the holding parts along the main extension direction of the support rail when the device is applied to the support rail.

Alternatively it can be provided that the axis of rotation extends substantially normal to the direction of movement of the Entriegelungsarms. In this case, the axis of rotation may preferably also extend substantially parallel to the mounting rail in the installed position, whereby the pivot angle between resting position and open position can be chosen very small.

If at least two opposing holding parts are connected to one another via a connecting member, wherein the connecting member has a bending point in at least one holding part, and a limiting element of the housing is arranged between the holding parts, then an alternative embodiment with only one unlocking arm for both holding parts is found only one slide guide needed. The link displaces one retaining member away from the mounting rail while the other is initially pulled in the same direction. But it depends on the limiting element, whereby the bending point of this holding part bends in its open position. The bending point preferably has elastic or elastomeric properties, as a result of which the holding part arranged at the bending point assumes its resting position again when the movement is opposite.

It is further advantageous if at least one position of at least one holding part is defined by at least one latching element. In this case, preferably the resting position and / or the open position is defined by the latching element. In this case, the locking element to prevent the unwanted leaving the position. It is particularly advantageous in this sense when the locking element is arranged on the holding part or on a part rigidly connected to the holding part.

The locking element may be designed, for example, as an increase, which are elastic, for example in the form of elastic plastic paragraphs or in the form of spring-loaded balls in a corresponding version. It can also take place an interaction of elevations and obstacles, wherein the increases, for example, on the holding parts, the link or on the

Unlocking can be arranged. During the movement from one position to the other, it may be provided that the elevation must move past an obstacle, such as further elevations, shoulders or even recesses or depressions of a directly adjacent part of the housing. Increased force must be used to overcome these elevations, shoulders, recesses or depressions and to begin or continue the movement process. Of course, the obstacle may also be arranged on the holding parts, the connecting member or on the unlocking arm and the elevation on the directly adjacent part of the housing. Furthermore, it can also be provided that the elevation must overcome several obstacles in order to move from one position to the other, whereby both the resting position and the open position can be defined. It can further be provided that the latching element is arranged in the guide groove. As a result, no obstacle is necessary because the locking element, again shown for example by an elastic or elastically mounted increase, the pin can set in a particular position, which can be left only by sufficient force.

It may also be advantageous if the side wall has at least one adjacent to a portion of the side wall and parallel in relation to the direction of movement of the Entriegelungsarms paragraph. If the pin is in the region of this paragraph, no movement of the guide groove can be effected by the action of force on the pin. As a result, the unwanted leaving a position can be prevented.

Moreover, it is advantageous if the holding parts are arranged in the interior of the housing. As a result, the parts are protected by the housing and the housing can rest directly against the wall when the device is mounted on a mounting rail.

In the following, the present invention will be explained in more detail with reference to the embodiment variants shown in the non-limiting figures. Show it:

1 shows a first embodiment according to the invention on a mounting rail in a perspective view.

FIG. 2 shows a detail of the first embodiment in a perspective view; FIG.

FIG. 3 shows the detail of FIG. 2 in another perspective view; FIG.

4 shows a detail of a second embodiment according to the invention in resting position on a mounting rail in a section;

Figure 5 shows the detail of Figure 4 in the open position in a section ..;

6 shows a detail of a third embodiment according to the invention in a perspective view.

Figure 1 shows a first embodiment of a device from the outside, wherein the device is applied to a mounting rail 3. The device has an outer housing 2, which has a recess 21 on the rear side, which can receive the support rail 3. A fastening device 1 is arranged substantially inside the housing 2, only part of a Entriegelungsarms 11, which is guided along a side plate of the housing 2 from the rear side to the front side 24, pointing out of an opening of the front side 24. The Entriegelungsarm 11 has at its outer region on a handle portion 12 which can be grasped by a user and moved away by a pulling movement of the housing 2. As a result, the movement of the Entriegelungsarms 11 and thus the solution of the device is triggered by the support rail 3, while a pressing of the Entriegelungsarms 11 causes a tightening of the device to the support rail 3.

Figures 2 and 3 show the same embodiment as FIG. 1, but only a detail of the fastening device 1 and the housing 2 in Fig. 2 without support rail 3, or in Fig. 3 with support rail 3. The Entriegelungsarm 11 has at its the handle part 12 opposite side to a broadening, which has two elongated guide grooves 4. In each of these engages a pin 5, which is rigidly arranged on each holding part 13. Through this link guide a connection between Entriegelungsarm 11 and the holding parts 13 is made. These holding parts 13 have along their recess 21 facing side depending on a retaining lug 14, which extend over part of the length of the holding parts 13. The retaining lugs 14 have holding surfaces 15 which can rest against the support rail 3 and thus fix the device to the support rail 3.

The holding parts 13 are connected to the pin 5 opposite sides movable with the housing 2. The holding parts 13 are therefore pivotable about axes of rotation A, which run along the movable connection.

In the situation shown in Fig. 2, the Entriegelungsarm 11 has been moved along a linear direction of movement 7, whereby the pins 5 are located at one end of the guide grooves 4 and the further movement of the

Entriegelungsarms 11 is limited in this direction. The guide grooves 4 each have along their extent two parallel side walls 41, which are continuous with respect to the direction of movement 7 obliquely, in an angle of approximately 45 ° to the direction of movement 7 of the Entriegelungsarms 11. Thereby, the pins 5 can be moved by the movement of the Entriegelungsarms 11 along the direction of movement 7 from one end of the guide groove 4 to the other, whereby the holding parts 13 are pivoted about the axes of rotation A, which are substantially parallel to the direction of movement 7 and normal to the mounting rail , The axes of rotation A are further arranged on each one broad side of the holding parts 13 and limit the holding parts on one side along the main extension direction of the support rail. As a result, the retaining lugs 14 can be moved apart into an open position as shown in FIGS. 2 and 3 and no longer engage in a mounting rail 3 when it is arranged in the recess 21. Depending on the embodiment, the movable connections between the holding parts 13 and the housing 2 may be resilient or non-resilient. In resilient embodiments, the holding member 13 can be pushed back, for example, in the resting position when it is in the open position or between these positions. Thus, an automatic closing of the holding parts 13 can be achieved when no force acts on the Entriegelungsarm 11 by the user, the Entriegelungsarm 11 is thus relieved.

4 and 5 show a second embodiment in a section with a mounted on a wall 6 support rail 3. The illustrated embodiment also has a Entriegelungsarm 11 for two opposite holding parts 13, wherein the retaining lugs 14 are directed towards each other. The guide grooves 4 are again arranged on the unlocking arm 11 and the pins 5 on the holding parts 13, however, the holding parts 13 have rotary joints with the housing 2, the axis of rotation A are normal to the direction of movement 7 and substantially parallel to the support rail 3 in the installed position. About the axes of rotation A, which are defined by these rotary joints, the holding parts 13 can be pivoted from an open position as shown in Fig. 5 in a resting position as shown in Fig. 4. For this purpose, the guide grooves 4 each have a side wall 41, which each have a sloping portion 42 and on both sides of the inclined portions 42 a first with respect to the direction of movement 7 of the

Entriegelungsarms 11 parallel first paragraph 43 and a second paragraph 44 of this kind.

In this case, a non-parallel alignment of a portion of the side wall of the guide groove of the slotted guide with respect to the direction of movement of the Entriegelungsarms understood obliquely. This also applies mutatis mutandis to the two other embodiments in Fig. 1, 2, 3 and Fig. 6. In other words, that with an oblique orientation of a portion of the side wall of the guide groove of the guide slot against the direction of the Entriegelungsarms, by the movement of Entriegelungsarms a power transmission between this portion of the side wall of the guide groove and the pin takes place. This applies mutatis mutandis to the other two embodiments in FIGS. 1, 2, 3 and FIG. 6.

In addition, each holding member 13 each have a resilient tongue 16 which bears against a stop 23 of the housing 2 and guide the pins 5 along the side walls 41. As a result, only one side wall 41 is necessary. If the holding parts 13 are brought into the open position by actuation of the unlocking arm 11, then the elastic tongues 16 bend and the pin is pressed onto the second shoulder 44. The second paragraph 44 prevents sliding back of the holding parts 13 in the resting position, only when the pin approaches the inclined portion 42, the holding parts 13 are automatically guided by the tensioned elastic tongue in the resting position.

The retaining lugs 14 have, in addition to the retaining surfaces 15 beveled guide surfaces which move the holding parts 13 from a resting position in a semi-open position when the device is approximated to a mounting rail 3. As a result, the support rail 3 can be automatically encompassed by the retaining lugs 14 without actuation of the unlocking arm 11.

Fig. 6 shows a further embodiment, wherein only a detail of

Fastening device 1 and the housing 2 is shown. The

Fastening device 1 has only one Entriegelungsarm 11 with only one slide guide, which is essentially constructed as the slide guide from the first embodiment. However, the pin 5 is not fixedly connected to a first holding part 13a. The pin 5 is connected via a short slot 17 with the first holding part 13 a and movably mounted on a non-illustrated movable attachment. A first holding part 13a is connected via a connecting member 18 to a second holding part 13b, wherein at the junction with the second holding part 13b, a bending point 19 is provided with elastic or elastomeric properties. In Fig. 6, both holding parts 13a, 13b shown in resting position, the pin 5 is located at one end of the guide groove 4. In this case, the second holding part 13b abuts a limiting element 22 at.

In addition, a first latching element 8 in the form of an elastic shoulder is arranged on the connecting member 18. Directly on the connecting member 18, an intermediate wall of the housing 2 is arranged, which also has a second locking element 9 in the form of a non-elastic shoulder. The shoulders face each other and are arranged so that that of the link 18 must overcome that of the housing 2 when the holding parts 13a, 13b are moved between resting position and open position. This deforms the elastic shoulder and slides past the inelastic shoulder. Alternatively, the second locking element 9 may be made elastic, and the first locking element 8 inelastic. Another alternative is an inelastic design of both locking elements 8, 9, wherein the intermediate wall of the housing 2 is designed to be elastic.

If the Entriegelungsarm 11 moves in the direction of movement 7, the pin 5 moves to the other end of the guide groove 4, whereby the first holding part 13a pulled together with the link 18 normal to the direction of movement 7 down and brought the first holding part 13a in an open position becomes. Due to the abutment against the limiting element 22, the second holding part 13b can not follow this movement, as a result of which the bending point 19 elastically deforms, the second holding part 13b folds over and is brought into a substantially parallel position to the connecting element 18. As a result, the second holding part 13b also releases a support rail 3 included in the resting position and is thus brought into an open position. In an opposite movement, the bending point 19 bends back into its original shape and brings the second holding part 13b back into the resting position.

Claims (15)

P A T E N T A N S P R E C H E 1. Device for latching on a mounting rail (3) for terminal blocks, which at least one housing (2) and at least one fastening device (1) for fixing the device to the support rail (3), wherein the fastening device (1) at least one holding part ( 13, 13a, 13b) having at least one retaining lug (14) for latching to the support rail (3) in a resting position, and the holding part (13, 13a, 13b) of the resting position in an open position by a movement of a Entriegelungsarms (11 ) of the fastening device (1) is movable, characterized in that a connection between the holding part (13, 13a, 13b) and the Entriegelungsarm (11) via a slotted guide, wherein the slotted guide a guide groove (4) and a pin arranged therein ( 5), and the guide groove (4) has at least one side wall (41) which runs at least in sections such that during the movement of the unlocking arm (11) e force is exerted on the holding part (13, 13a, 13b) whose direction of force is different from a direction of movement (7) of the Entriegelungsarms (11). 2. Device according to claim 1, characterized in that the pin (5) on the holding part (13, 13 a, 13 b) and the guide groove (4) on the Entriegelungsarm (11) is arranged. 3. Apparatus according to claim 1 or 2, characterized in that the fastening device (1) has at least two opposite holding parts (13, 13 a, 13 b) with mutually facing retaining lugs (14). 4. Apparatus according to claim 3, characterized in that the opposite holding parts (13, 13 a, 13 b) with the same Entriegelungsarm (11) are connected. 5. Device according to one of claims 1 to 4, characterized in that at least one holding part (13, 13a, 13b) has a resilient tongue (16) which bears at least in the open position on a stop (23) stretched. 6. The device according to claim 5, characterized in that the elastic tongue (16) bears at least partially stretched even in resting position on the stop (23). 7. Device according to one of claims 1 to 6, characterized in that at least one holding part (13, 13a, 13b) via a rotation axis (A) with respect to the housing (2) is pivotable. 8. Apparatus according to claim 7, characterized in that the axis of rotation (A) substantially parallel to the direction of movement (7) of the Entriegelungsarms (11). 9. Apparatus according to claim 7, characterized in that the axis of rotation (A) substantially normal to the direction of movement (7) of the Entriegelungsarms (11). 10. The device according to claim 9, characterized in that at least two opposite holding parts (13, 13a, 13b) via a connecting member (18) are interconnected, wherein the connecting member (18) at least one holding part (13, 13a, 13b) a Bending point (19), and between the holding parts (13, 13a, 13b) a limiting element (22) of the housing (2) is arranged. 11. Device according to one of claims 1 to 10, characterized in that at least one position of at least one holding part (13, 13a, 13b) is defined by at least one latching element (8, 9). 12. The device according to claim 11, characterized in that the latching element (8, 9) on the holding part (13, 13 a, 13 b) or on a with the holding part (13, 13 a, 13 b) rigidly connected part is arranged. 13. The apparatus of claim 11 or 12, characterized in that the latching element (8, 9) in the guide groove (4) is arranged. 14. Device according to one of claims 1 to 13, characterized in that the side wall (41) at least one of a portion (42) of the side wall (41) adjacent and with respect to the direction of movement (7) of the Entriegelungsarms (11) parallel Paragraph (43, 44). 15. Device according to one of claims 1 to 14, characterized in that the holding parts (13, 13 a, 13 b) in the interior of the housing (2) are arranged.