CN103220939B - Connection fittings - Google Patents

Abstract

The present invention relates to a kind of connection fittings (1), for removably by the furniture parts of tabular, particularly front panel (4) is fixed on described furniture parts angled, the furniture parts of another tabular of preferred vertical orientation, on the sidewall frame (8) of particularly drawer (5), wherein, described connection fittings have bracing or strutting arrangement (2), described bracing or strutting arrangement (2) is furnished with pillar, described pillar and locking device (3) are removably rabbeted, wherein, described locking device has following features: the mounting substrate segmentation (21) extended perpendicular to installed surface (16), can hinged securing rod (22) of being exerted pressure by spring (28) movably in described mounting substrate segmentation, described securing rod (22) can move to lock position from released position and overcome elastic force and to move back from lock position released position under the effect of elastic force, described securing rod also has hook segmentation (23), described hook segmentation is used in lock position, engage corresponding pillar on described bracing or strutting arrangement (2) from behind, preferred pin (13), wherein, described securing rod (22) utilizes turntable bearing (24) to be hinged on described mounting substrate segmentation (21), it is characterized in that the design of the structure of the unstick improved.

Description

Connection fittings

Technical field

The present invention relates to a kind of connection fittings, for removably the furniture parts of tabular, particularly front panel being fixed to the sidewall frame of angled with it, that preferred vertical is directed another block tabular furniture parts, particularly drawer, described in preamble as claimed in claim 1.

Background technology

These type of connection fittings are open in EP0066893B1.The feature of shown connection fittings is, these connection fittings structure is compact and can realize firmly connecting between two tabular furniture parts to be interconnected by these connection fittings, and this connection can be again released simply by the removal rod embedded in connection fittings.Advantageously by axially promoting the possibility that corresponding support unit connects automatically.

On the contrary, in the prior art, the spring performance of the system of installation is just so not favourable because to join domain push relative resilient not large be received, this can cause damaging interconnective furniture parts in extreme circumstances.

EP0740917B1 also discloses a kind of connection fittings, it adopts the connection fittings with " automatic locking device " of type described in EP0066893B1 equally, but not use integrated removal rod, but use the storing apparatus in locking rod (it realizes resetting by means of independent instrument, such as screwdriver) to dismantle.Here, locking mechanism is moved out from locking rod and the stop that dismounting motion can be crossed afterwards by applying cross force by axially being introduced in storing apparatus by screwdriver when dismantling.Here especially disadvantageously, preparation tool is needed all the time to dismantle front panel.

Summary of the invention

From existing EP0066893B1, the object of the invention is to, improve connection fittings further.

According to the present invention, this object is realized by the feature of claim 1 and 11.

Record according to claim 1, mounting substrate segmentation is installed or is designed on the frame adapter of side frame, can to be hinged in securing rod and substrate segmentation and to extend in the free space in frame adapter by manually operated unstick, thus make it possible to manually operated unstick can in free space by user's hand operated.

The feature of claim 1 achieves, and has particularly advantageously abandoned instrument, such as screwdriver to unclamp securing rod, and therefore unstick is economical space saving integrated in frame design especially practically.

(namely on two side frames) operation unstick on two sidepieces of drawer can be realized thus simultaneously, thus front panel can be unclamped by a user with reliably and not damaging.The present invention correspondingly also proposed has two side frames, a front panel and two drawers according to connection fittings of the present invention.

Here, according to the modification of dependent claims advantageously by other function i ntegration in this unstick, This further improves operating characteristic and the security feature of connection fittings.

Such as according to claim 2, design the first swing link in mounting substrate segmentation, the first swing link is overlapping with the second swing link in securing rod, and wherein, the pin that can move in two swing links is through two swing links.This feature achieves favourable the coordinating between parts securing rod with mounting substrate segmentation in a particularly simple way.

According to claim 3, the first swing link is the swing link of the arc in mounting substrate segmentation, and the second swing link is the swing link of the dihedral in securing rod, wherein, and can the stop of bridge joint be formed by the swing link of dihedral for pin.Like this, the mechanism needed for lock function that can be converted to securing rod in practice in simple especially and reliable mode.

Advantageously, pin, to be preferably arranged in the opening on unstick, to this achieve the cooperation of the swing link adopting simple design means to be placed in by unstick on securing rod and in mounting substrate segmentation.

In addition favourable also have, and pin designs head, thus when securing rod moves between open position and lock position, securing rod guides in the swing link of mounting substrate segmentation in mounting substrate segmentation.

By to improve claim 1 to 10 and as the feature of the claim 11 of independently inventing, reduce the risk of front panel damage in a straightforward manner and reduce by striking the infringement of front panel to drawer mechanical device, because the securing rod of drawer mechanical device can flexibly move in the region of its turntable bearing.

In addition, flexible connection fittings also achieve front panel (as long as it is correspondingly swingable) and can be conditioned in the angle of the furniture parts of itself and other tabular, without the need to unclamping connection at conditioning period, because turntable bearing can balance or receive the corresponding motion of front panel.This is impossible when turntable bearing is designed to the rigid bearing of " gapless " that those skilled in the art in practice significance think.

Expedients of the present invention limits in the dependent claims.

Accompanying drawing explanation

Below, the present invention is elaborated by means of embodiment with reference to accompanying drawing.Wherein,

Fig. 1 shows the side view of connection fittings, and these connection fittings have the first fitting part being designed to locking device, and it is arranged on frame adapter, and has the second fitting part being designed to bracing or strutting arrangement;

Fig. 2 shows the perspective exploded view of the locking device in Fig. 1, without the second fitting part;

Fig. 3 shows the perspective view of the furniture with multiple drawer, and drawer is positioned at closed condition;

Fig. 4 shows the perspective view of the furniture of Fig. 3, has the drawer under an open mode;

Fig. 5 shows the perspective view of in the drawer in Fig. 4;

Fig. 6 shows the drawer in Fig. 5, does not have front panel but has connection fittings, and connection fittings have locking device and bracing or strutting arrangement;

Fig. 7 shows the drawer in Fig. 5, does not have front panel, has locking device, but does not have bracing or strutting arrangement;

Fig. 8 shows the perspective view of a part for the sightless frame of part of frame wall, and this frame has locking device and bracing or strutting arrangement;

Fig. 9 shows the rearview of the structure of Fig. 1;

Figure 10 shows the side view of structure when introducing support member and starting in Fig. 1;

Figure 11-15 shows the side view of connection fittings when introducing bracing or strutting arrangement of Fig. 1, and these connection fittings do not have frame adapter; According to when installing support member on locking piece, the moment of motion process successively illustrates this side view in time,

Figure 15 shows the locking device under disassembly status, and this locking device does not have bracing or strutting arrangement;

Figure 16 shows the rearview of Figure 12.

Detailed description of the invention

See Fig. 1, each connection fittings 1 have two that can mutually rabbet, corresponding functional units: bracing or strutting arrangement 2 and the locking device 3 detachably can rabbeted with bracing or strutting arrangement 2.

Bracing or strutting arrangement 2 is fixed on the first furniture parts of tabular, and see Fig. 3-5, the first furniture parts of tabular is preferably designed to the front panel 4 of drawer 5.This drawer 5 can be inserted in the Furniture Body 6 of furniture 7, and wherein, drawer can guide with being pushed in Furniture Body, thus makes it from Furniture Body 6, be pulled to open position and again shift (see Fig. 3 and 4) closed position onto from this open position.

On the contrary, locking device 3 (see Fig. 2 and 6 and 7 and 8) is designed to, and is fixed on the second furniture parts of tabular, and this second furniture parts is preferably designed to the side frame 8 of drawer 5.The tabular of side frame is realized by the double-walled cover piece 9 of metal herein, the double-walled cover piece of this metal is formed by one or more frame adapter 10 and can be locked in known manner on one or more frame adapter 10, such as utilizes installing mechanism as bolt or snap device etc.Frame adapter 10 is also used in installation outline 12 (Fig. 2) upper accommodation drawer bottom 11 (Fig. 6) and for being placed on unshowned track structure herein, drawer can be guided by this track structure with promoting on Furniture Body.

Each drawer preferably has two frames 8 and two connection fittings 1, thus makes front panel 4 to connect respectively by a bracing or strutting arrangement 2 with the corresponding locking device 3 on corresponding two side frames 8 or to connect together in mounted situation in two regions.

Being configured in of bracing or strutting arrangement 2 is arbitrary as far as possible in category of the present invention.But its first furniture parts, such as front panel 4 that at least must can be fixed on tabular has strut members, such as suitable accommodation section or a pin 13 of horizontal-extending under the state built.

Locking device 3 has base unit (also see Fig. 2), preferred substrate corner fittings 14, it (segmentation 15a, b) is fixed on the upper installed surface 16 of the state lower frame adapter 10 built by leg piece, thisly fixingly realizes as by welding.This fixing bindiny mechanism's such as bolt that can also pass through other realizes, and in addition, base unit can also be integrated into (not shown) in frame adapter 10 integratedly herein.

It should be noted that feature "up" and "down" is not understood to be a kind of and limits at this.These features should be understood to that common furniture is installed and structure situation, as shown in Figure 2.

Leg piece (Fig. 2) is divided into two leg piece segmentations 15a, b here, between these two leg piece segmentations, there is free space, in order to realize other, profile that the function element herein do not set forth further projects upwards from installed surface 16.

In the part of installed surface 16 above (namely to the direction of bracing or strutting arrangement 2) there is opening 17, the function element of the locking device 3 will set forth below is charged in frame adapter 10 by this opening.

Frame adapter 10 substantially has the cross section of U-shaped on the direction perpendicular to front panel plane.This frame adapter 10 is preferably made by sheet material is bending, and wherein, installed surface 16 is formed by the shorter leg piece of U-shaped.In addition, installation outline 12 is raised to drawer bottom surface 11 from frame adapter 10.Free space 20 is designed between two of frame adapter longer leg pieces 18,19.Being designed and sized to of this free space 20, user can stretch into this free space with its finger from below.

Leg piece segmentation 15a, b have the mounting substrate segmentation 21 extended perpendicular to installed surface 16.Securing rod 22 is movably hinged in this mounting substrate segmentation 21, and securing rod can move to lock position from released position.

Securing rod 22 is preferably positioned at frame inside all the time, thus the part not having locking device 3 extends to front panel 4.

Securing rod 22 has hook segmentation 23, and this hook segmentation is used to the pillar of correspondence, preferably pin 13 to engage (hintergreifen) from behind on bracing or strutting arrangement 2.Securing rod 22 is designed to the bar of one-sided supporting.The turntable bearing 24 of securing rod is positioned at the side of this securing rod front panel 4 dorsad.Securing rod 22 is preferably passed by pin 25 in this region on opening 45, and this pin is preferably across the opening 26 of the elongated hole-shape in mounting substrate segmentation 21.

Opening 26 has and is of a size of, and is under any circumstance obviously greater than the diameter of pin 25 in the X direction, thus this pin 25 with gap through opening 26.

In mounting substrate segmentation 21 and on securing rod 22, form installation outline 27,49, such as hook, mounting spring (being herein helical spring 28) can form the end of installing arc with it and be arranged in described installation outline.Helical spring 28 is almost flatly arranged.A helical spring end is preferred is in the assembled state fixed in the vacancy 46 of mounting substrate segmentation 21 and another end helical spring preferably roughly between pin 25 and hook segmentation 23 above opening 26.

Like this, helical spring 28 moves securing rod 22 to upper lock position, on this in lock position, when pillar is placed on support member or bracing or strutting arrangement 2 by hook-shaped segmentation, the component of a tabular is fixed on the component of another tabular, is fixed on a side frame 8 herein for front panel 4.

By pin 25 being bearing on the rear soffit (Laibung) of the opening 26 of preferred elongated hole-shape with the gap in opening 26, the end of securing rod 22 is pushed by the pin in opening 26, is particularly pushed being parallel on side frame 8 or the direction perpendicular to front panel 4.

This is particularly advantageous, because the firm shock being avoided front panel by described measure is directly directed on side frame 8 with momentum completely.But coordinate by bearing clearance and spring 28 kinetic energy reducing to clash into momentum.Therefore, substantially reduce the damage risk of side frame structure in a straightforward manner according to connection fittings 1 of the present invention and reduce front panel 4 possibility fixing with the pin segmentation 42,43 of the bracing or strutting arrangement 2 of connection fittings 1.

Advantageously, the gap in turntable bearing 24 at least one direction, preferably " X-direction " upper (Fig. 1) in the mounting direction or be here positioned at 0.3-3mm, be particularly preferably positioned at the scope of 0.5-2mm.This gap can be formed on opening 26 and/or be formed in the join domain between pin 25 and securing rod 22.

As shown in Figure 1, in order to unclamp securing rod 22 from link position, adopt the unstick 29 be integrated on locking device 3.

Unstick 29 preferably has the shape of L shape in side view.Unstick has lever arm 30 and release arm 31, release arm relative to lever arm 30 angularly, almost directed at a right angle herein.Release arm 31 also in the view vertical with side view (for this reason also see Fig. 2) hierarchically design.Between lever arm 30 and release arm 31, arrange chain of command 51 with the angle crossed by lever arm and unstick, this chain of command is almost vertically arranged in the open position of locking device 3.

Lever arm 30 is advantageously hinged in mounting substrate segmentation 21 with its end herein, and preferably the direction of front panel 4 or bracing or strutting arrangement 2 is hinged by means of pin 32 near hook segmentation 23, this pin 32 is through the opening 34 and 36 in mounting substrate segmentation 21 or unstick 29.The swing link 44 of arc is designed in mounting substrate segmentation 21, the swing link 50 of itself and dihedral is stacked layout as follows in securing rod 22: pin 33 is through two swing links 44, 50 and around its point of rotation, (it is here advantageously located at and arranges alternatively with becoming spacing in these two swing links at pin 33, make in the region of constitutionally stable element 21 folding of material (Materialdopplung)) motion, wherein the point of rotation passes through at opening 34, supporting in 36 is formed, wherein, formed can the stop of bridge joint and pin 33 be arranged in the opening 35 on unstick 29 by the swing link 50 of dihedral.In addition, pin 33 forms head 38, thus make securing rod 22 reliably in mounting substrate segmentation 21, introduce its swing link 44, prerequisite is that securing rod 22 moves between open position and lock position.

It is outstanding and can pass through finger manipulation there to free space that release arm 31 is passed down through opening 17.

When locking, namely when introducing bracing or strutting arrangement 2, operating the unstick 29 on chain of command 51 by pin 13 and making pin 33 move through the dead-centre position of swing link 50 thus.Make securing rod 22 be released thus and upwards swung by the power of helical spring 28, wherein, pin 13 engages from below.

Fig. 7 also show frame cover piece 9 can have side opening 48, in order to realize the panel adjustment device touched at sidepiece on bracing or strutting arrangement 2.

If to the direction pull-up release arm 31 of bracing or strutting arrangement 2 or front panel 4, the power that securing rod 22 overcomes spring 28 be pulled to from lock position or the position above it open position or below position in.

Preferred locking and locking rod 22 swing on unstick 29 by pin 33 is following, make it possible to cross the stop in swing link 50, thus securing rod 22 can keep in this position in the on-state after corresponding motion, this particularly makes the first installation become easy, in the installation site that therefore bracing or strutting arrangement 2 just can be made first to be brought to front panel 4 in locking device like this.By the enough large reverse power be applied in X-direction on front panel 4, bracing or strutting arrangement 2 makes unstick 29 move on chain of command 51 by means of pin 13 and makes pin 33 move through the dead-centre position of swing link 50 thus, thus make securing rod 22 be pulled in its lock position by spring 28, in this lock position, pillar (being herein pin 13) joins on bracing or strutting arrangement 2 by hook segmentation 23 later.

On the free bottom of unstick 29, namely in release arm 31, this is on its bend, can install flexible, can automatically reset plastic boots 39, this plastic boots makes the installation of unstick 29 be more prone to.Preferably this plastic boots 39 also realizes extra function.

On plastic boots, sliding surface 52 is set in the folding corner region between composition surface 53 and protection face 40, first this sliding surface to strike when pulled on the folding corner region 41 of securing rod 22 in release arm 31 and just slides through this bight 41 afterwards, prerequisite is applied with obviously perceptible, sufficiently high operating physical force, and namely plastic boots 39 overcomes the swing of its elastic force.

Owing to needing the swing of plastic boots 39 to cross folding corner region 41; achieve when not through user operation unstick 29 and prevent absent-mindedly as by the Additional Protection that the impact load on pure front panel 4 makes securing rod 22 unclamp from its lock position; wherein; plastic boots 39 strikes the lower to upper of securing rod 22 with its protection face 40 in this case, namely unstick 29 can not be swung to the securing rod coupled discharges bracing or strutting arrangement 2 pin 13 with its hook segmentation 23.

Figure 10-15 or Fig. 1 (it illustrates the side view of the connection fittings in Fig. 1, there is (Figure 10, Fig. 1) or not there is (Figure 11-15) frame adapter) clearly show this relation especially, wherein, also show in the X direction movement locus when (see Fig. 1) installs support member 2 on locking piece 3 with moment (Figure 10,11,12,13,14,1 or 15) successively on the time and particularly also show the locking of plastic boots 39 on bight 41 of setting forth above.

Finally it should be noted that, support member 2 herein can fixing with the pin segmentation 42,43 of one or more wooden peg shape (clamping and/or bonding) on the opening of front panel 4.Alternatively, it is also conceivable to, support member 2 is otherwise fixed on front panel 4, such as by means of bolt (not shown herein).This connected mode is obviously simpler and which thereby enhance service life of furniture according to equipment of the present invention by what describe before.

Reference numerals list

1 connection fittings

2 bracing or strutting arrangements

3 locking devices

4 front panels

5 drawers

6 Furniture Body

7 furniture

8 side frames

9 double-walled cover pieces

10 frame adapters

11 drawer bottom surfaces

12 installation outlines

13 pins

14 substrate corner fittings

The segmentation of 15a, b leg piece

16 installed surfaces

17 openings

18,19 leg pieces

20 free spaces

21 mounting substrate segmentations

22 securing rods

23 hook segmentations

24 turntable bearings

25 pins

26 openings

27 installation outlines

28 helical springs

29 unsticks

30 lever arms

31 release arm

32,33 pins

34-37 opening

38 heads

39 plastic bootses

40 protection faces

41 folding corner regions

42,43 pin segmentations

44 swing links

45 openings

46 vacancies

47,48 openings

49 installation outlines

50 swing links

51 chains of command

52 sliding surfaces

53 composition surfaces

Claims (34)

1. connection fittings (1), for removably the furniture parts of tabular being fixed on the furniture parts with another tabular of the angled orientation of described furniture parts, wherein, described connection fittings have bracing or strutting arrangement (2), described bracing or strutting arrangement (2) is furnished with pillar, described pillar and locking device (3) are removably rabbeted, and wherein, described locking device has following features:

A. perpendicular to the mounting substrate segmentation (21) that installed surface (16) extends,

B. can hinged securing rod (22) of being exerted pressure by spring (28) movably on described mounting substrate segmentation (21), described securing rod (22) can move to lock position from released position and overcome elastic force and to move back from lock position released position under the effect of elastic force

C. wherein, described securing rod also has hook segmentation (23), and described hook segmentation (23) is used in lock position, engage corresponding pillar on described bracing or strutting arrangement (2) from behind;

D. wherein, described securing rod (22) utilizes turntable bearing (24) to be hinged on described mounting substrate segmentation (21),

E. wherein, setting can manually operated unstick (29),

It is characterized in that,

F. described mounting substrate segmentation also installs or designs on the frame adapter (10) of side frame (8), can manually operated unstick (29) to be hinged on described securing rod (22) and described mounting substrate segmentation (21) upper and extend in the free space (20) in described frame adapter (10), thus make described can manually operated unstick (29) can by user's hand operated in described free space (20)

G. described locking device (3) has substrate corner fittings (14) as base unit, described substrate corner fittings (14) by install leg piece be arranged on the leg piece of described frame adapter (10), inserting on the installed surface (16) above being positioned under state, wherein, unstick (29) extends in the free space (20) in described frame adapter (10) through the first opening (17) in described installed surface (16).

2. connection fittings as claimed in claim 1, it is characterized in that, design the first swing link (44) in mounting substrate segmentation (21), described first swing link (44) is overlapping with the second swing link (50) in described securing rod (22), wherein, first pin (33) that can move in two swing links (44,50) is through two swing links (44,50).

3. connection fittings as claimed in claim 2, it is characterized in that, described first swing link is the swing link (44) of the arc in described mounting substrate segmentation (21), described second swing link is the swing link (50) of the dihedral in described securing rod (22), wherein, can the stop of bridge joint be formed by the swing link (50) of described dihedral for described first pin (33).

4. connection fittings as claimed in claim 2 or claim 3, it is characterized in that, described first pin (33) is arranged on described unstick (29).

5. connection fittings as claimed in claim 2 or claim 3, it is characterized in that, described first pin (33) designs head (38), thus when described securing rod (22) moves between open position and lock position, described securing rod (22) guides on described mounting substrate segmentation (21) in first swing link (44) of described mounting substrate segmentation (21).

6. the connection fittings according to any one of claim 1-3, it is characterized in that, release arm (31) charges into described free space (20) through described first opening (17), thus described release arm (31) can be operated from below with finger there.

7. the connection fittings according to any one of claim 1-3, it is characterized in that, described unstick (29) has lever arm (30) and release arm (31), described release arm and described lever arm (30) angularly, almost vertically directed herein.

8. connection fittings as claimed in claim 7, is characterized in that, between described lever arm (30) and described release arm (31), arrange chain of command (51) in the angle crossed.

9. connection fittings as claimed in claim 7, it is characterized in that, described lever arm (30) is hinged on described mounting substrate segmentation (21) with its one end.

10. the connection fittings according to any one of claim 1-3, it is characterized in that, described turntable bearing (24) has gap, described gap is of a size of, and described securing rod (22) can be pushed at least one direction under the effect of elastic force in described turntable bearing (24) on described locking device (3).

11. connection fittings as claimed in claim 10, is characterized in that, described securing rod (22) can motility or described gap be at least 0.2mm.

12. connection fittings according to any one of claim 1-3, it is characterized in that, described securing rod (22) is the bar of one-sided supporting and described turntable bearing (24) is positioned on the end of described securing rod (22) described bracing or strutting arrangement (2) dorsad.

13. connection fittings according to any one of claim 1-3, it is characterized in that, described securing rod (22) is passed by the second pin (25) to form described turntable bearing (24), described second pin (25) is also through the 3rd opening (26) of the window shape in mounting substrate segmentation (21), and described 3rd opening has diameter and under any circumstance has the gap of 0.3-3mm with described second pin all in one direction.

14. connection fittings as claimed in claim 13, is characterized in that, described 3rd opening (26) is designed to elongated hole.

15. connection fittings according to any one of claim 1-3, is characterized in that, it is inner that whole locking device is positioned at described frame cover piece (9) in the assembled state all the time completely.

16. connection fittings according to any one of claim 1-3, it is characterized in that, go up described mounting substrate segmentation (21) and on described securing rod (22), form installation outline (27,49), at the upper fixing spring (28) of described installation outline (27,49).

17. connection fittings according to any one of claim 1-3, it is characterized in that, the set-up mode of described spring (28) is, described spring (28) is angled with described securing rod (22), thus makes described spring (28) move described securing rod (22) lock position of described securing rod (22) to.

18. connection fittings according to any one of claim 1-3, it is characterized in that, described securing rod (22) can move to open position through stop.

19. connection fittings as claimed in claim 13, it is characterized in that, one end of described spring (28) is fixed on the described top of the 3rd opening (26) in the assembled state and the other end of described spring (28) is roughly positioned at middle part between described turntable bearing (24) and described hook segmentation (23).

20. connection fittings according to any one of claim 1-3, it is characterized in that, the fit system of described release arm (31) and described securing rod (22) is, when described securing rod (22) moves to its released position from lock position, additionally prevent the accident of described securing rod from unclamping.

21. connection fittings according to any one of claim 1-3, it is characterized in that, the release arm (31) of described unstick (29) installs boots, wherein, sliding surface (52) is set in the folding corner region also on boots between composition surface (53) and protection face (40), first described sliding surface strikes on the folding corner region (41) of described securing rod (22) when tractive release arm (31), then just pass through this folding corner region (41) to slide, prerequisite applies obviously to feel, sufficiently high operating physical force, namely plastic boots (39) overcomes the swing of its elastic force.

22. connection fittings as claimed in claim 9, it is characterized in that, the furniture parts of described tabular is front panel.

23. connection fittings as claimed in claim 1, is characterized in that, described connection fittings (1) are for being removably fixed on the furniture parts with another tabular of the furniture parts vertical orientation of described tabular by the furniture parts of tabular.

24. connection fittings as claimed in claim 1, is characterized in that, the furniture parts of another tabular described is the sidewall frame of drawer (5).

25. connection fittings as claimed in claim 1, is characterized in that, described pillar is the 3rd pin.

26. connection fittings as claimed in claim 4, is characterized in that, described first pin (33) is arranged on described unstick (29) in the second opening (35).

27. connection fittings as claimed in claim 6, it is characterized in that, release arm (31) charges into described free space (20) through described first opening (17), thus described release arm (31) can be operated from below with finger there in the assembled state.

28. connection fittings as claimed in claim 10, is characterized in that, at least one direction described is parallel to installation direction (-X) for installing described bracing or strutting arrangement (2) or described installation direction (-X).

29. connection fittings as claimed in claim 11, is characterized in that, described securing rod (22) can motility or described gap be at least 0.3mm.

30. connection fittings as claimed in claim 13, it is characterized in that, described direction is installation direction (-X).

31. connection fittings as claimed in claim 13, it is characterized in that, described gap is the gap of 0.5-2mm.

32. connection fittings as claimed in claim 15, is characterized in that, the securing rod (22) of described locking device is positioned at described frame cover piece (9) inside in the assembled state all the time completely.

33. connection fittings as claimed in claim 21, it is characterized in that, described boots are plastic bootses.

34. connection fittings as claimed in claim 22, is characterized in that, described lever arm (30) is to described front panel (4) or hinged near described hook segmentation (23) to described bracing or strutting arrangement (2).