WO2007113138A1

WO2007113138A1 - Quick-acting closure

Info

Publication number: WO2007113138A1
Application number: PCT/EP2007/052799
Authority: WO
Inventors: Niels Uwe Zimmermann; Volker Haas
Original assignee: Siemens Aktiengesellschaft
Priority date: 2006-03-31
Filing date: 2007-03-23
Publication date: 2007-10-11
Also published as: DE102006016277A1; EP2002130A1; CN101415958A

Abstract

The invention relates to a quick-acting closure having a pin and a spring part, wherein the pin comprises a pin head and a pin shank, and the spring part has at least two elastic legs extending in the longitudinal direction of the pin shank and is accommodated on the pin in a centred manner, wherein the pin is rotatable about its longitudinal axis in the spring part and the pin shank has surface elements which, when the pin is rotated into a certain angular position, cause the spring legs to expand against the spring leg force. Provision is made for the spring part (20) and the pin (10) to be configured in such a way that the pin (10) can be inserted into the spring part (20) with a solely translatory movement until the pin head (10a) bears against the spring part (20) and is fixed there in a positive-locking manner in the direction of its longitudinal axis in a latching position in the relaxed spring part (20).

Description

description

quick release

The invention relates to a quick release, which serves for example for closing housings of switchgear or control cabinets. Switchgear or control cabinets are closed with doors or Ab ^¬ covers. By means of a quick release, a fast and cost-effective closing connection between a door or cover and a surface provided on the housing of the switchgear can be achieved. In particular, in electrical cabinets, there is also the requirement to include the door closing the housing or the cover with in the measures provided for the housing electrical protection measures. Also, the possibility of rapid opening of the cabinet is achieved by the arrangement of a quick release.

In the field of quick locks are previously known closure ^¬ systems, the tap essentially comprises a closure ^¬, consist of a spacer and a resilient counterpart. FIG. 14 shows such a system. In this locking system locking lugs are attached to the resilient counterpart, which are spread out at spring relief from the resilient counterpart. The locking lugs are also spread out in the resilient counterpart completely pressed in locking pin from the resilient counterpart. The spread-out detents bring about a support on a material plate, through the passage opening, the resilient counterpart was previously pushed through. A rotation of the pressed into the resilient counterpart plug ^¬ pin about its longitudinal axis causes such a Aufauf the resilient leg ends of the spring piece, which are aligned with the latching lugs, spread the latching lugs and spring leg ends in a position in which they run essentially parallel to the longitudinal axis of the latching pin. This means that in this position, the legs of the resilient counterpart spread apart by the locking pin have a substantially smooth contour. The generation of this smooth contour allows the resilient counterpart can be pulled out of the material plate having the passage opening again. A disadvantage of this locking system is that immediately after the insertion of the resilient counterpart with the locking pin in an opening a clamping connection with the opening plate having. An adjustment of the quick-lock in the plate is so limited ^{¬ possible} . Furthermore, it can be seen from the illustrated closure system that in order to join the closure system, the closure pin and the resilient counterpart must each be joined together from another side of the cover plate. This means that for joining this closure system using the installer both hands need to press, lich one hand to insert the locking pin into an opening of the receiving plate and on the other side of the In ^¬ takeover panel a counterpart to the pin NaEM ^¬. This type of assembly is also only possible if the space behind the mounting plate, in which the resilient counterpart is located, is accessible for mounting.

Furthermore, from the document EP 1464851 Al a closure system is known, in which also arranged on a pin surface elements legs of a resilient Gegen ^¬ piece apart spread apart and thus a closure bezie ^¬ hurry as a clamping of flat lying on each other Plates is effected. The spreading of the spring ends is effected by the complete insertion of the pin in the spring part. Only in this position, the spring is completely spread open and causes a lock. Attached in the vicinity of the pin head mold elements effect together with form elements on the resilient counterpart a positional fixing of the pin in the resilient counterpart. In this position, the spring is already cocked, that is, in this position, the spring legs are already spread against their spring force to the outside. A lock for better posi ^¬ tioning on the plates to be joined is difficult in this state.

The document DE 103 19 756 B4 discloses a connection system with an inner and an outer plastic part, wherein upon rotation of the inner plastic part flanks of the outer plastic part are spread outwards and thus a clamping effect with a wall of an opening in which the locking system is brought about ,

A disadvantage of this embodiment is that z. B. when mounting in the vertical direction, the outer part must first be inserted into the opening and then the inner part must be plugged into the outer part, since no mutual locking of the two parts is present.

The invention has for its object to provide a kostenge ^¬ gene and easy to assemble quick release available that includes the attached by him to a housing cover with provided in the housing electrical protection measures. According to the invention this object is achieved by a quick-release with the features mentioned in claim 1.

There is provided a quick release having a pin with a pin head and a pin shaft and further comprising a spring member which comprises two extending in the longitudinal direction of the pin shaft resilient leg ^¬ and which is accommodated centered on the pin. The pin is rotatable about its longitudinal axis in the spring part. The pin shank has form elements which cause a spreading of the spring legs against the spring force upon rotation of the pin in a certain angular position. Spring member and pins are designed such that the pin is inserted with an exclusively translational movement until the journal head on the spring part in the spring part and is fixed in position there in the direction of its longitudinal axis in a locking position in the relaxed spring part.

The spring member and the locking pin have preferably been assembled prior to insertion into the receiving openings of the plates into a compact overall unit with only one translational movement. Due to the positive Ver ^¬ bond of pin and spring member in a position in which the pin is engaged in the spring member, they can not be separated from each other, that is, they are captive attached to each other. This has the advantage that both construction ^¬ parts can be plugged together as a whole unit with only a handle in the receiving openings. Furthermore, for the production of the closure connection, only the

Outside of the cover plate be accessible for mounting. After inserting the quick release in the receiving ^¬ openings of the cover plate and the housing plate of the Spigot rotated by introducing a torque in the pin head in a certain angular position, wherein the journal ^¬ shank arranged surface elements press the ends of the resilient legs apart. This means that after the complete insertion of the pin in the spring part this is still relaxed and only after rotation of the pin spring is ge ^¬ tense. At a turning back of the pin, the spread-spring legs go back to their relaxed from ^¬ back gear position. In this angular position of the pin, the entire quick release can be removed again the receiving openings in the cover plate and the housing plate.

In a preferred embodiment, the maximum distance of the spring leg to the pin longitudinal axis in a Verdrehposi- tion of the pin in the spring member in which the spring member is spread against its spring force, greater than the maximum distance between the spring leg to pin longitudinal axis in a Ver ^¬ rotational position of the pin in the spring member , in which the spring part is relaxed.

That is, in the spread-open position, the spring legs have a maximum distance to the pin longitudinal axis ^¬ which is greater than the maximum distance of the edge of the passage openings of the plates to the pin longitudinal axis, so that a withdrawal of the quick-acting closure of the Öffnun ^¬ gene is impossible.

This configuration causes, when pin and spring member are pushed together through the receiving openings of a cover plate and a housing plate, these plates are in

Gap between the pin head and the spread spring leg ends are, whereby the position of the quick release in the direction of its longitudinal axis relative to the plates is fixed, or the plates are fixed by the quick release.

Advantageously, the spring part abuts directly on the journal head. This embodiment has the advantage that the spring member can be supported in the journal longitudinal direction to a side directly on the pin head, which serves to fix the position of the spring member in the journal longitudinal direction. The fixing of the position of the spring part on the pin first makes the production of the closing system as a whole before the insertion and the

Insertion of this entity in the receiving openings of the plates possible. Furthermore, the direct contact of the spring part on the pin head on the outside of the cover plate causes an improved optical effect such that the pin head rests directly on the cover plate.

Preferably, it is further provided that the spring part has at least one pointing in the direction of the pin head locking ^¬ nose for clamping the cover plate between locking lug and pin head. Usually two symmetrical ^¬ ordered latches are attached to the spring member. When inserting the quick release in the receiving opening of the cover plate, the locking lugs are pressed inwards and slide along the inner contour of the receiving opening until they jump after passing the wall of the receiving opening on the back of the cover plate to the outside. In this position, the locking lug on the cover plate is supported and the Ab ^¬ cover plate is fixed between the pin head and locking lugs.

For secure support of the pin head on the cover plate has its edge, at least in the region opposite to the locking lug, a greater distance from the pin longitudinal axis than the distance of the edge of the receiving opening to Zapf longitudinal axis. This dimensioning causes the quick release after insertion into the receiving openings of the plates can not be pushed therethrough. The pin head with its bearing surface therefore acts as a stop in the insertion movement and as a counter-pressure element for the clamping of the cover plate between locking lugs and pin head.

Preferably, the profile of the plugged-on pin on the spring part in the direction of the pin longitudinal axis in wesent ^¬ union a rectangular shape. This embodiment causes in connection with also rectangular shaped receiving openings in the cover plate and the housing plate a rotation of the spring part of the quick release when introducing a torque in the pin.

In order to ensure an anti-rotation, however, the spring member may also have any other profile, which prevents entrainment of the spring member by the pin during its Hung.

Advantageously, at least one ground ^¬ nose provided on the spring part, which causes an electrical connection between the spring member and the plate, which is clamped between the pin head and locking lugs. These grounding lugs provide a secure electrical connection between the quick release and the plate by the ground lugs a color and / or powder coating, usually z. B. is present on a cover plate, is pierced by the ground lugs. In a metallic pin and also metallic spring part thus an electrically conductive connection between the cover plate and spring member and thus also for the pin is effected. Also, a deformation may be provided on the spring part, which causes an electrically conductive connection with the plate into which the quick release for establishing a connection with a cover plate is inserted. This plate is usually a plate of the housing. This can be achieved in a simple manner an electrically conductive connection between the housing via the quick release with the covering ^¬ plate. This measure is the quick closure as well as the cover plate with rule in the electrical ^¬ protective measures that are applied for the housing involved.

Furthermore, it can be provided that the journal head has elements which facilitate the introduction of a torque on the journal. Usually, these form elements are slots or cross slots for attaching a screwdriver. The pin head can also be configured as a handle for manual operation. Furthermore, the tap head can be shaped so that he nen as a handle for Entfer ^¬ the cover plate can be used from the housing.

The spigot may have a through bore which serves to receive a seal. Through the through hole, a thread can be threaded on a seal in a known manner is attached. Upon further attachment of the thread outside the quick release, the seal is destroyed when turning the pin head.

In an advantageous embodiment, each form elements are provided on the pin and the spring member, which together cause a defined rotational movement of the spring member about the longitudinal axis of the pin as a guide. At this guide can the Furthermore, a stop be provided which limits the rotational movement to a certain angular position. Preferably, the defined rotational movement in a range of 90 ° is possible.

In a further advantageous embodiment, the pin shaft has a wedge shape at its end opposite the pin head. This wedge shape proves to be particularly advantageous when the pin and spring part before common insertion in receiving openings with each other

Be mated together. The mating is done exclusively by a translational movement, with which the pin is inserted into the spring part. When inserting the pin in the spring member, the wedge-shaped end of the pin, the two spring legs apart so that the pin can slide into the spring part far enough so that the spring ends after passing the wedge-shaped end to move back to each other and the pin form-fitting and captive is held in the spring part.

This form-fitting connection between pin and spring part can be achieved in that the outer circumference of the wedge-shaped pin end has a further distance from the pin longitudinal axis than the distance of the surface elements provided for spreading the spring leg ends on the pin shaft. This configuration of the surface elements at the PTO shaft and the configuration of the wedge-shaped ge ^¬ stalteten spigot end results between this pin end and the rest of the pin shank in the area of for winding the spring leg serving surface elements straddle a circumferential about the pin longitudinal groove in which the ends of the spring legs in spread and relaxed abut the pin shaft and thus cause the positive Ver ^¬ bond of pin and spring member.

Preferably, the profile of the pin shank in the region of the form elements provided for spreading in the direction of the pin longitudinal axis is configured substantially rectangular. In order to facilitate the rotation of the pin shaft in the spring part with the ends of the spring legs sliding over the shaping elements serving for spreading, it can be provided that the diametrically opposite corners have rounded portions on the rectangular shape of the profile for spreading. These rounding reduce the coefficient of friction between the resilient leg ends and provided for spreading surface elements.

Characterized in that the profile of the pin shaft is formed rectangular in the area serving for spreading surface elements, resulting upon rotation of the pin Rastpositio ^¬ NEN, namely whenever the two spring ends press perpendicular to two mutually parallel surface elements of the rectangular profile. Thus there is in the expanded To ^¬ stand (locked state) of the quick release as well as the relaxed (unlocked) state in the quick release static equilibrium, that is, there must be no force or torque constantly taken to the per ^¬ stays awhile twisting of the pin in the spring part to keep.

The invention will be explained in more detail in an embodiment with reference to the accompanying drawings. Show it:

Figure 1 shows a quick release in perspective view; Figure 2 shows the quick release before insertion into receiving ^openings in the cover plate and housing ^¬ plate;

Figure 3 shows the inserted into a cover plate quick release in the unlocked state;

FIG. 4 shows the quick release fastener inserted in cover plate and housing plate in the unlocked state;

FIG. 5 shows the quick-release fastener inserted in cover plate and housing plate in the locked state;

FIG. 6 shows the spring part;

FIG. 7 shows the quick-release fastener inserted into the cover plate with engaging ground lugs;

Figure 8 shows the spring part with representation of the transformation;

Figure 9 is a side view of the inserted in the cover plate and Ge ^¬ housing plate quick release;

Figure 10 shows the quick release before plugging in cover plate and provided with recesses Gehäu ^¬ seplatte;

Figure 11 shows two perspective views of the pin;

Figure 12 is an illustration of the lead from pin and spring member guide; Figure 13 is an illustration of the stop of the rotary guide;

Figure 14 is an illustration of the form elements on the pin shaft, which serve to spread the spring legs, in a

Position a) in which the spring legs are spread apart and not be ^¬ in a

Position b), in which the spring legs are spread, and

FIG. 15 shows a locking system according to the prior art with a locking pin, a spacer and a resilient counterpart and locking lugs.

As can be seen in Figure 1, the inventive

Quick release of a pin 10 and an on it be ^¬ strengthened spring member 20. In order to effect a closure or a compound of a housing plate 40 and a cover 30, the quick release by substantially rectangular passage openings in the cover plate 30 and the housing plate 40 through plugged (Figure 2). In Figures 3 and 4, the quick release is shown in the inserted position in side view. It is also apparent from these figures ^¬ if that the legs of the spring member 20 terminate in a region which is formed as a recess 70 in the pin shaft 10b.

As can be seen from FIGS. 3 to 5, the parallel base surfaces of this recess 70 arranged symmetrically with respect to the pin longitudinal axis form the surface elements 70a and 70b which are arranged parallel to one another and upon rotation of the pin 10 press the spring legs 25 apart. By this off ^{¬ presses} the spring leg ends 25a, 25b have this at least in the area which has the farthest distance from the pin, a greater distance to the pin longitudinal axis than the distance of the walls of the receiving openings of the plates 30 and 40 is to the pin longitudinal axis. Pulling out the quick release in this spread state is therefore no longer possible.

In Figure 6 locking lugs 50 and ground lugs 60 are shown on the spring member 20. FIG. 7 shows how the latching noses 50 cover the cover plate 30 between itself and the head of the

Hold pin 10. In this case, the ground lugs 60 are in engagement with the cover plate 30th

FIG. 8 shows the spring part 20 with deformations 80 attached to it. As can be seen from FIG. 9, the deformations 80 on the spring part 20 in the region 90 engage the walls of the passage openings of the housing plate 40.

By penetrating a possible existing coating of the housing plate 40 is thus at this point an electrically conductive connection between the housing and the

Quick release and thus also made with the cover plate 30.

Thus, the spreading of the locking lugs 50 is not obstructed by the Wan düng the receiving opening of the housing plate 40, the receiving opening in the housing plate such Ab ^¬ measurements that even with plugged quick release in the cover plate 30 and the housing plate 40, the locking lugs 50 still far enough can spread to rest on the cover plate 30.

However, it can also be provided that, as shown in FIG. 10, recesses 130 are provided in the housing plate 40. find, in which with inserted quick release in the cover plate 30 and the housing plate 40, the locking lugs 50 are placed to ensure that the locking lugs 50 can be securely spread even when the receiving opening in the housing plate 40 is relatively narrow dimensioned or when the receiving openings of cover plate 30 and housing plate 40 are not congruent one above the other.

Figure IIa illustrates the pin 10 with formations 105, which are arranged to initiate a torque in the pin in the pin head 10a. In the case shown, the Ausfor ^¬ ments 105 are executed in Kreutzschlitzform to a torque z. B. to be able to initiate with a Kreutzschlitzschraubendreher in the pin.

The guide 100, which is manufactured by forming elements of the spring member 20 and the pin 10 is in the figure 12 ersicht ^¬ Lich. This guide 100 is effected in that in the spring member 20, a ring-segment-shaped recess 100a is provided, in which engages a ring-segment-shaped projection 100b on the pin shaft 10b. By means of this ring segment-shaped Substituted ^¬ staltung a rotating guide is effected about the longitudinal axis of the pin 10th At one end of the ring segment-shaped projection 100b on the pintle shaft 10b, a stop 110, which prevents further rotation of the pin 10 in the spring member 20 via a ^¬ be true angular position out.

The wedge-shaped spigot end 120 pushes the two resilient leg ends 25a, 25b of the spring part 20 so far apart until they push over the wedge-shaped spigot end 120 and provided in the recess 70 at the for spreading the spring ends when pushing the pin 10 in the spring member Surface elements 70a, 70b rest. In Figure 13, the stop 110 is for the rotational movement Darge ^¬ represents, which engages as the only form of element in the annular recess in the spring member.

In Figure 14, the two different rotational positions of the pin are shown in the spring part. FIG. 14a shows the non-locked position of the quick-release closure, in which the resilient leg ends 25a and 25b rest against the surface elements 70a, 70b provided for spreading the spring leg ends. Upon rotation of the surface elements 70a, 70b in the counterclockwise direction, the rotational position results as shown in Figure 14b. In this position, both spring leg ends 25a and 25b are pushed apart by the rotation of the surface elements 70a, 70b. The edges of the angular surface elements 70a and 70b, which slide over the surfaces of the spring ends 25a and 25b are rounded to reduce the coefficient of friction.

LIST OF REFERENCE NUMBERS

10 cones

10a pin head 10b pin shaft

20 spring part

25 spring legs

25a leg end

25b leg end 30 cover plate

40 housing plate

50 locking lugs

60 earthing noses

70 recess 70a surface element for spreading

70b surface element for spreading

80 forming

90 engagement area

100 guide 100a ring segment-shaped recess

100b ring segment-shaped projection

105 formations

110 stop

120 wedge-shaped journal end 130 recesses

Claims

claims

1. quick release with a pin and a spring part, wherein the pin encompasses a pin head and a pin shaft, and the spring part has at least two extending in the longitudinal direction ^¬ tion of the pin shaft resilient leg ^¬ and is centered on the pin recorded, wherein the Spigot about its longitudinal axis in the spring member is rotatable and the pin shank surface elements, which cause a spreading of the spring legs against the spring ^{leg ¬} force upon rotation of the pin in a certain angular position, characterized in that the spring member (20) and the pin (10) so are configured so that the pin (10) with an exclusively translational movement until the journal head (10a) on the spring part (20) in the spring part (20) can be inserted and there positively in the direction of its longitudinal axis in a detent position in the relaxed spring member (20 ) is fixed in position.

2. Quick-fastener according to claim 1, characterized in that the maximum distance of the spring legs (25) to the pin longitudinal axis in a rotational position of the pin (10) in the spring part (20) in which the spring member (20) is spread open against its spring force, is greater as the maximum distance of the spring legs (25) to the pin longitudinal axis in a rotational position of the pin (10) in the spring part (20) in which the spring member (20) is relaxed.

3. Quick-release closure according to one of the preceding claims, characterized in that the spring part (20) rests on the pin head (10a).

4. Quick-fastener according to one of the preceding claims, characterized in that the spring part (20) has at least one in the direction of the pin head (10a) facing latching lug (50) for clamping a plate between latching lug (50) and pin head (10a).

5. Quick-fastener according to claim 4, characterized in that the edge of the pin head (10a) at least in the latching lug (50) opposite region has a greater distance from the pin longitudinal axis than the maximum distance of the spring legs (25) to the pin longitudinal axis in the relaxed state.

6. Quick release according to one of the preceding claims, characterized in that the profile of the on the pin (10) plugged spring part (20) seen in the direction of the pin longitudinal axis is substantially a rectangular shape.

7. Quick release according to one of the preceding claims, characterized in that on the spring part (20) at least one grounding lug (60) is provided, which has an electrically conductive connection between

Spring member (20) and plate (30) which is clamped between the pin head (10 a) and spread spring legs (25) causes.

8th . Schnel lverschlus s according to any one of the preceding claims, characterized in that s on the spring part (20) at least one deformation (80) is provided, which is an electrically conductive connection with a Plate (40), in which the quick release is inserted causes.

9. Quick-fastener according to one of the preceding claims, characterized in that the pin head (10a) is provided with at least one formation which facilitates the introduction of a torque on the pin (10).

10. Quick release according to one of the preceding Ansprü ^¬ che, characterized in that the pin head (10 a) has a through hole, which serves to receive a seal.

11. Quick release according to one of the preceding Ansprü ^¬ che, characterized in that on the pin (10) and on the spring member (20) form elements are provided which together as a guide (100) defines a

Rotary movement of the spring member (20) about the longitudinal axis of the pin (10) cause.

12. Quick-release fastener according to one of the preceding claims, characterized in that the pin shank (10b) has a wedge shape at its end (120) opposite the pin head (10a).

13. Quick-fastener according to claim 12, characterized in that the outermost circumference of the wedge-shaped pin end (120) has a further distance from the pin longitudinal axis has as the distance of the spreading of the spring leg ends (25a, 25b) provided form elements (70a, 70b) on the pin shank (10b).

14. Quick-action closure according to one of the preceding claims, characterized in that the profile of the pin shank (10b) in the region of the form elements (70a, 70b) provided for spreading is substantially rectangular in the pin longitudinal direction.

15. Quick-fastener according to claim 14, characterized in that there are rounding off at the rectangular shape at diametrically opposite corners.