CN101182745A

CN101182745A - A magnetic push-pull device with reduced transversing size for furniture

Info

Publication number: CN101182745A
Application number: CNA2007101999802A
Authority: CN
Inventors: 卡洛·米利
Original assignee: Agostino Ferrari SpA
Current assignee: Agostino Ferrari SpA
Priority date: 2006-11-13
Filing date: 2007-11-12
Publication date: 2008-05-21
Anticipated expiration: 2027-11-12
Also published as: ATE435354T1; ITMI20060392U1; DE602007001436D1; ES2329836T3; EP1921238A1; EP1921238B1; CN101182745B

Abstract

The invention relates to a magnetic push-pull device of the opening component of furniture, which comprises a magnet (19) and a thrust pin (15) in the front. The thrust pin can spring between the retracting position and the position extending out of the magnet through a push-pull mechanism (17 and 18). The magnet (19) and the thrust pin (15) are arranged with parallel relation with complementary section to form a circumference.

Description

The furniture magnetic push-pull device that a kind of lateral dimension reduces

Technical field

The present invention relates to a kind of magnetic push-pull device that is used for furniture, this device magnetically keeps the turned parts (normally door) of piece of furniture in the closed position, up to manually promote the suitable spring push-rod that movable part discharges push-pull mechanism from the outside.Like this, push rod comes out and promotes furniture parts to shift out from the magnetic retainer from described device.Applying new pressure on push-pull mechanism will make push rod be locked in retracted position once more.

Background technology

Proposed such device in the prior art, such device is made in the hole that is embedded into piece of furniture, and push rod exposes by the toroidal magnet that axially is drilled with the hole from an end.

This device for example is described in European patent application EP 1598509.Though the operation of this device is very satisfactory, the minimum diameter of this device is passed the restriction of the putter component sufficient intensity needs of magnet.At first, if push rod has a long relatively stroke, passing magnet and stretch out the part of described device may be easily owing to external force becomes distortion, fractures thus and stops slip.In addition, described toroidal magnet also must have certain wall thickness, so that enough attractions can be provided.Also have, toroidal magnet is relatively costly.Though other magnet and push rod configuration before were suggested already, found that described configuration is huge because of its size, efficient is not high and can not directly install impracticable.

Summary of the invention

Being of catalogue of the present invention by providing a kind of cost reduction, lateral dimension to reduce, install simple and very firm magnetic push-pull device and overcome above-mentioned shortcoming.

In view of above-mentioned purpose, according to the present invention, designed a kind of magnetic push-pull device that is used for the piece of furniture turned parts, this device comprises magnet and thrust pin in front, this thrust pin can be by means of push-pull mechanism at retracted position with reach springing between the position outside the magnet, it is characterized in that: described magnet and described thrust pin are arranged with mutual relation side by side and are had complementary cross section, thereby they form a circumference (circumference) together.

Description of drawings

For the advantage of explaining that better innovative principle of the present invention and the present invention provide with respect to known technology, the possible embodiment that adopts these principles is described by way of example with reference to the accompanying drawings.In the accompanying drawings:

Fig. 1 is the schematic side elevation in magnetic push-pull device cross section manufactured according to the present invention;

Fig. 2 is the partial sectional view along II-II line among Fig. 1;

Fig. 3 is the front elevation drawing that installs shown in Fig. 1;

Fig. 4 is the exploded view that installs shown in Fig. 1.

The specific embodiment

Referring to accompanying drawing, a kind of push-pull device at fixed that is used to maintain the closed position and is opened by thrust is shown in Figure 1 and represent that with 10 the turned parts of piece of furniture (as door) does not illustrate.Device 10 comprises magnetic retainer 19 and thrust pin 15 in front, and thrust pin 15 can be by means of push-pull mechanism at retracted position with reach springing (spring movable) between the position outside the magnet.

Device 10 comprises cylindrical housing 11, and support insert 12 is contained in the described cylindrical housing vertically, and push rod 13 slides on described support insert 12, and described push rod is moved by spring 14 so that this push rod stretches out the front of described cylinder together with thrust pin 15.Spring 14 works between the rear portion of the support insert 12 that forms rear portion plug 16 and push rod rear portion.

At push rod 13 with support in the sliding contact surface (slide interface) between 12 and have a push-pull mechanism,, stretch out furniture parts is separated from the magnetic retainer thereby push rod is remained on retracted position or finger piece so that alternately.According to a kind of known bistable mechanism, described push-pull mechanism is included in cam path 17 that forms in the described support and the S shape pin element 18 that is assemblied in this cam path.

As being clear that from Fig. 2, described cam path is formed for the loop of pin element, has two settling positions at the push rod end of travel.

In first position (as depicted in figs. 1 and 2), push rod is to exposing outside, and after sliding in cam path, the end of S shape pin just is in the preceding settling position 20 of cam path.

In another position, push rod is held, and the basic front end near cylinder 11 of the free end of wherein said pin 15 is so that with respect to the front indentation slightly of the magnetic part 19 that is arranged side by side with push rod pin.On this position, S shape is sold 18 end in cam path inside, and is in the back settling position 21 in the cam path.Like this, when thrust pin when retracted position is exerted pressure, corresponding to the retracted position or the extended position of thrust pin, S shape pin alternately moves in cam path on the position in two stable end positions.

The front of described device as shown in Figure 3.The pin 15 of push rod and magnet 19 be with side by side relationship mobile axial arranged transverse to pin, and have complementary cross section so that form circumference each other.Particularly advantageous is that the two is two and half ones of same circumference.In fact can find, by this way can be at magnetic force about the diameter of device and sell exist between 15 the horizontal soundness best compromise.Manufacturing cost with the magnet in semilune cross section also is lower than toroidal magnet.

For the sake of clarity, the exploded view that each parts of device 10 are disassembled shown in Fig. 4.What be clearly shown that is, by with the inboard of the preceding end of cylinder 11 on corresponding step 23 interfere, push rod step 22 stopped push rod to outer stroke.Same step 23 is interfered with the step 24 of magnet, to stop its stroke forward.Each different parts of assembling described device are very simple, because only need push rod 13 is arranged in the support 12, wherein suitably insert S shape pin 18; With the appropriate location in the seat 25 in the spring 14 insertion supports; And from behind all parts are introduced cylinders 11 (wherein inserting magnet 19) and stopped against the back end of cylinder up to plug 16.Described support also comprises the retainer that be used for magnet of restriction (trapped) between support and edge 23.

Support can be locked in the cylinder in a different manner.Such as, support can splicing, ultra-sonic welded, the two all adopts plastic material or only is force-fitted in the cylinder.Cylinder is terminal ring edge 26 with protrusion before it, this ring edge can stop cylinder to sink in the appropriate well that forms on the piece of furniture, because minimized in size, described hole holds described device fully, make magnet and push rod suitably outstanding, make them on the door of piece of furniture, to work expediently.Therefore described device can be used for embedding under (packing into) condition easily.

Be apparent that in this, realized intended purposes by the magnetic push-pull device of the soundness that a kind of minimum dimension is provided, reduces cost and is satisfied with, making simultaneously has the stroke of a big axial length and a corresponding length against the thrust pin of door.

Obviously, above-mentioned description to the embodiment that adopts innovative principle of the present invention only provides by way of example, can not think the restriction to the patent right scope of advocating here.

Claims

1. magnetic push-pull device that is used for the turned parts of piece of furniture, this device comprises magnet (19) and thrust pin (15) in front, this thrust pin can be by means of push-pull mechanism (17,18) at retracted position with reach springing between the position outside the magnet, it is characterized in that: magnet (19) and thrust pin (15) are arranged with mutual relation side by side and are had complementary cross section, thereby they form a circumference together.

2. device as claimed in claim 1 is characterized in that: the cross section of described pin and magnet constitute two and half ones of described circumference.

3. device as claimed in claim 1, it is characterized in that: described device also comprises cylindrical shell (11), support component (12) is contained in the described cylindrical shell, described support component extends vertically, and push rod (13) slides on described support component, described push rod (13) ends at thrust pin (15) in front, thrust spring (14) is used for that push rod is pushed to position that described pin (15) stretches out and at push rod with between supporting, and described push-pull mechanism is inserted between push rod (13) and the support (12) in the sliding contact surface.

4. device as claimed in claim 3, it is characterized in that: described push-pull mechanism comprises cam path (17) and S shape pin (18), described cam path (17) laterally is formed in the described support, an end of described S shape pin (18) is pivotally mounted on the push rod along cam path slip and another end, with convenient thrust pin (15) when the pressure that is subjected to towards its retracted position, described S shape pin (18) is corresponding to the retracted position and the extended position of thrust pin (15), alternately arrive on the position in two the stable end positions (20,21) in the cam path (17).

5. device as claimed in claim 3 is characterized in that: described support (12) forms plug (16) by its rear end, is used at rear portion closed circle tubular housing (11).