DE1938827A1 - Process for the series production of medium-sized, glassless mirrors and device for carrying out the process - Google Patents

Description

Munich 13, ElUabethjtr. 54

Schweiger + SehweiB & r AG, Zug

Process for the serial production of medium-sized, glassless Mirror and device for carrying out the process

The present invention is a process for the serial production of medium-sized, glassless mirrors, a pre- seal, implementation of the process and a process produced according to the process

Eo is known, for I <aden ~ and shop window decorations Spisgalfoiion »of grosae Rjahmeii auTzußpajjnen. The prVt «l« * iffi: _s oiafc ? Q ± tanti ± lü \ 3SJg in the area c / bu ϋκύα \ & 7ΐ. & Za i Bor- <ie ηΐΛβ smoothly ^ äapi ^ e Spanrumg of the j? © lie au e ^ Kiölen. " That

FA - Case 1 _BAD ORIGINAL

009818/1482

the same problem prevented bi3 from manufacturing glassless, Medium-sized mirrors such as pocket mirrors and the like.

The purpose of the present invention is to create a method and the necessary volume for its implementation in order to achieve the serial production of medium-sized, glass laser mirrors The mirror is kept stretched in one plane that afterwards a & v to form the flat aoiEZ-cutting polis part is perforated along its edge contours and at the latest after the perforation along the edge contour. but within this, held by clamping jaws and held exclusively by friction, that afterwards the film between the j> er forierungslüehern is cut open and at least eat. the area of the cut-out film between the clamping jaws serving as the picture surface is equally stretched radially so that a mirror support and a Klesasi frame are placed on opposite sides of the film and axially across the picture surface, so that the mirror support and the clamping frame aoMal and relative to each other up to aur Touching the film are shifted so that the achaial shift of the mirror carrier and the clamping frame is then continued up to their clamping connection, with the film edges being pulled out between the clamping jaws,

BATH ORIGINAL

009818 / U62

The device for carrying out the procedure is marked by means of keeping the mirror film stretched in one plane, by perforating needles that can be moved vertically on the plane for perforating the edge contours of the part of the film to be cut out for the image area, through above and below the Clamping jaws arranged in the film with clamping surfaces parallel to the film which are modeled on the hand contour mentioned and can be moved relative to one another, by knife sum cutting out dee. mentioned film part between the perforation holes clamping connection of the clamping jaws, through organs, to cut out the foil part by means of the. Jaws over To tension a mirror support held in parallel on a support device by a vertically displaceable against the mirror base Element to accommodate the clamping frame and press against the mirror support ssu and through drive and control organs to cycle-wise actuation of the perforating needles, the knives, the cheekbones, the organs and the element "",

The mirrors manufactured according to the process are marked by a mirror support and a clamped connection therewith Klem ^ frame and through a between mirror support and Sleana frame evenly stretched and held mirror foil.

According to the accompanying schematic drawing, the invention

for example explained. It sseigen: ^ *

ijig « 1 eis © sehemai; leslie view of a device according to the invention, partially g £ Bclmr'ct © ii _s

SCS? i: ^ι ί ί * 1 ■ - " 2 BAD ORffiiHAL

Pig. 2 shows an excerpt from Pig- 1 in an enlarged representation, lv.ng,

Pig. 3 shows a view of the tooth knife in the direction of arrow A. FIG after Pig. 2,

Pig. 4 is the same as Pig. 2 in a different working position and

Pig. 5 shows a further exemplary embodiment of a device according to the invention Mirror in cross section, with the mirror frame and mirror carrier being clamped together.

In a stationary stand 1, a polish storage roller 2 is rotatably mounted. The polish storage roller 2 is driven by means of a motor 3 via a V-belt 4 in the direction of rotation of the arrow "B". A mirror film 4o is wound up on the poles storage roll 2. A dancer 5 is articulated on the stand 1 vertically above the axis of rotation of the polie storage roll 2, at the free end of which a roller 6 is rotatably mounted, around which the polie 4o is guided. Between the pivot axis of the dancer 5 and the roller 6, the dancer 5 is connected to one end of a helical spring 7, which is attached to the stand 1 at its other end. The dancer 5, as shown in dashed lines, can be pivoted against the action of the peder 7. From the roller 6 iot the pile 4o to a deflection roller 8 and from there horizontally between two rollers 9 and Io. The roller Io rests against the roller 9 with pressure and is rotated by a lever 11 by an Aatväeb 12 clockwise in the direction of the arrow "C", so that the case is cyclically pulled off the Polienepeicherrolle 2 Image area of the mirror dieneade PoU.isratfu.l 1 cut out. The reflective foil 4o provides soi &'lt is a reflective foil vow wsseiitXi ^ ^ grbr -i.vor? 3äc "." C eJ ,:' δις- 'ϊ. "Ύ. *

BATH ORIGINAL

surface of the mirror. Between the steering roller δ and the rollers 9 and Io, the mirror film 4o is held stretched in one plane by means of the dancer 5, which is under the action of a spring.

The drive 12 is only used to advance the film 4o in cycles. During the advance of the film 4o, the dancer 5 is pivoted into its front position, shown in dashed lines, in which it actuates a switch, not shown, which sets the motor 3 to Sang. The motor 3 rotates the film storage roll 2 until the dancer 5 reaches its rear end position. In the rear end position, the dancer 5 actuates a second switch, not shown, which interrupts the supply circuit of the motor 3.

The film 4o consists of polyester. Their thickness is preferably 5 to 2o hicron. On the foil 4o is to form a Evaporated mirror layer of aluminum.

Jm stand 1 there is arranged a stationary "vertically oriented, cylindrical bore 13 with an annular groove fourteenth A clamping jaw 15 is axially inserted into the cylindrical bore 13 and has a ridge 16 with which it engages in the annular groove 14 * The horizontal surfaces of the annular groove 14 serve as an upper and lower stop to limit the vertical displacement of the clamping jaw 15. Between the lower horizontal surface of the annular groove 14 and the annular rib 16, helical springs 17 are arranged distributed evenly, which press the ElemnibEiCke 15 gogn ilen upper stop. The clamping jaw 15 has on the side facing the film 4o a plane parallel to the film,

BATH ORIGINAL

1338827

A fixed support 19 is arranged axially in the clamping jaw 15, on which a mirror carrier 2o is placed and is held plane-parallel to the mirror film 4o. Axially parallel and symmetrical to the axis of the clamping jaw 15, guides 21 are fixedly attached to the stand 1. A yoke 22, to which a lever 23 is articulated, is mounted on the guides 21 so as to be vertically displaceable. With its end opposite the yoke 22, the lever 23 is deflected on the eccentric pin 24 of an eccentric disk 25. The eccentric disk 25 can be driven by a motor 25 via a V-belt 27. A punch 28 is attached to the yoke 22, which at its lower end carries a clamping frame 29 serving as a mirror frame. A knife holder 3o with a Zacfcexueesser »31 stored. In the horizontal section, the serrated knife 31 has a ring-cylindrical cross-section which corresponds to the band contour of the foil style 41 to be cut out of the mirror foil 40, see below. The special design of the serrated knife 31 for perforating and cutting out the image area will be described later. The knife holder 3o has a cylindrical bore 32 with an annular groove 33. In the bore 32 is axially displaceable an upper clamping jaw 34 with an Elcmmflache 18a parallel to the clamping surface 18. The upper clamping jaw 34 has at its upper end a flange-shaped widening 34 o with which the oie engages in the HiBgEUt 33. The horizontal surfaces of the annular groove 33 serve as upper and lower constraints on the vertical sliding movement dor Xleaaabackts 34 * Between the horizontal surface of the annular groove 33 and the flanechföröigen widening 34o, screw fasteners 35 are evenly spaced against their spring force the bran cheek ~ 4 after

BATH ORIGINAL

Can be displaced at the top «Between the joeh 22 and the knife holder 3o, SctoaubeBfedem 3δ are provided, which are pushed aohsially over the guides 21. Analogously, between the stand I and the measuring arm holder 3o, helical springs 37 are guided around the guides 21 on which the measuring arm 3o is mounted. The biiaensiönxeruag the 'feathers has to be done in such a way that the feathers 17 are stronger than the feathers 35 and the feathers 36 are stronger than the leathers 37. '■ ·.

FIGS. 2 to 4 show, in an enlarged representation, the essential parts of the device shown in FIG. 1. The same reference numbers are used for the same parts. As can be seen in particular from FIGS. 2 and 3, a serrated knife 31 is used. In deviation from the well-known knife shapes, the sacks 38 are needle-shaped. As a result, when the knife 31 hits the spit gel film 4o, it is initially perforated. After full perforation through the needles 38, the cutting switch becomes larger _? so that the mirror surface 4o is cut between the perforation holes. To avoid stretching of the last material bridges between two adjacent perforation holes during the cutting process »is the formation of the prongs, for example. whose cutting angle is chosen so that it is in

of, swei siae teeth toas, equal to the cutter pin 38. A perfect cutting ER ^ @ © r i in the cutting angle β is approximately equal to the "Isis Kü @in" n clean Stsnssschnitt to orzielen, getigliefe area is Aht Spitz © 3B and in the range 39 @ äa spit ^ ©©;. .- Sohnei -dwinkel is complied with,

& AD ORIGINAL

Training of the knife 31 allows both a perforation of the Mirror foil 4o as well as a clean cut of the mirror * * foil between the perforation holes.

The inventive device works as follows. The . Mirror film 4o is between the. Umlerikrolle 0 and the orphans and Io held stretched out in one plane. The stretching of the mirror film 4 in this plane takes place through the spring 7 »which acts on the dancer 5, usa whose orphan 6 the mirror foil 4o around is.

In this position of the mirror foil 4o, the vertical axis of the image surface of the mirror moves the foil part to be cut out of the mirror foil 4o for this purpose, in a coaxial position with the mirror support 2o, which rests on the support 19. The mirror carrier 2o is located under the mirror film 4o, while the Klesmrafcunen 29 is held above it and acheial to the mirror carrier 2o. In a first working cycle, the motor 26 drives the Exaenter disk 25 via the V-belt 27, and the lever 23 drives the yoke 22 vertically downwards. As can be seen in particular from FIGS. 2 and 3, the tips 38 of the Zackenmeer 31 first come into contact with the mirror film 4o and perforate the film part provided for forming the image surface along its contour. During the further downward movement of the yoke 22, the clerical surface 18o hits the mirror foil 4o and the cast iron prints the clamping surface 18 of the cleavage backs 15. The screw feet = ni 35 are made more precise than the Sckvau- VS71 17 is dsrb Klesai

ii ~ Xü miü 3.Sc · 11 · »Spi ^ irelfclic? 4Q euaeciiIa-3? Elich flm ?? -b- the OoS-t ΙΪ / ΊΙ & 7 BADORlGiNAL

clamping force generated by the coil springs 35 held. While the mirror film 4o between the clamping surfaces 18 and 18o exclusively is held by friction, the mirror film

40 cut open between the perforation holes «Then the upper horizontal surface of the annular groove 33, which acts as a stop, comes into contact with the upper clamping jaw 34 and presses this together with the clamping jaw 15 and the one held in between Foil surface against the action of the coil springs 17 downwards. In this case (see FIG. 4) the film part serving as a picture surface is used

41 stronger and stronger according to the springs 17 between the clamping surfaces 18 and 18o clamped and over the mirror carrier pulled and stretched radially at the same time. During the further downward movement of the yoke 22, the clamp frame comes into contact with the film surface 41 and serving as a picture surface presses the part protruding beyond the mirror support downwards and increasingly connects with the mirror support in a tightly fitting manner 2o. The clamp held between the clamping jaws 15 and 34 is thereby held Edge zone of the film surface 41 between the clamping surfaces 18 and 18o pulled out. Then yoke 22 is raised again, and the mirror film 4o retraced by means of the drive 12 for the next operation. The finished glassless mirror lies on top the edition 19 and can be taken from dieeer. When the yoke 22 has reached its highest position, the aforementioned work begins s process again *

According to the further execution game. 5, the spisgel support 20 has an annular groove 42 into which an annular rib 43 ′ the comb frame 23 engages. The adjacent inner shä / i of the IUngnut 42 and the annular rib 43 are

BAD ORiGINAL

connected with each other. The polieiiteil "-41" serving as the image surface is guided around the annular rib 43 and held firmly between the arm, klenaaschlüseigen surfaces of the annular rib and the annular groove. "To stiffen the mirror carrier 2o , this old ribs 46 are provided along the touching surfaces 4 - and are the mirror carrier 2o and the Eleaiiarahiaen 29 vorz-ixgsrnel & e welded by means of ultrasound.

Patent applicant

Dipl.-Ing. E. Eder

Munich 15, EJisabethstr. 34

BATH ORIGINAL

009 ^ 19 / 1X62

Claims (1)

- 11 ^-:. ■ '' ■■■ - ■ claims 1) \ Process for the serial production of medium-sized, glass-free mirrors, characterized in that a mirror film with a substantially larger area than the image surface of the mirror is held stretched in one plane, that after the formation of the image surface, the film part to be cut out after the formation of the image surface is perforated along its edge contours and at the latest after The perforation along the hand contour, but within this, is gripped by clamping jaws and held exclusively by friction, so that afterwards the film between the perforation holes is cut open and at least in the area of the cut-out film that serves as the image area is evenly stretched radially between the clamping jaws "That on the opposite sides of the foil and axially to the 3i3! £ pool" a mirror support and a clamping frame are brought that the mirror support and the Kleiomrahmmi in the direction of the image surface aclise asäsial us & relative to each other until they touch the 3? Oli © are ^ and iaös then the aeSisiala Verschiebuisg 'Mß ■ -UpiBJ ^ liiT ^^ Ta-V ^^ a ^ ia-tlemBt' · frame up to their kleffimseM-Üssagen connection, is continued, with the foil rims swisofeen pulled out the clamping jaws 2) Apparatus sur ItoreMianffig ä ^ B TsrfaJa ^ ens. according to claim-1, - geksimseiclsisQt durcSa Iitt-®1 (B ₉ B _v Ss Xo-) _s -um you mirror film (4c) I i a Ifesae gsatg'iickt su lialten ₅ through vertical mxr plane verenlij.'äbtoare! '© rforisraadisla C 3®) "sur perforation a <& r HajadJfcojitureB ü-TT f'ux · dig BSlöfiilüli® au0siai» cl? .ntld <sad ^ si-Foli © nflSehe (41) * through 00Sä1i / HS2 - V ■ -. · ORIGINAL BATHROOM Above and below the foil (4o) arranged clamping jaws (15, 34) nat sur foil (4o) parallel clamping surfaces (18 ₅ Ιδο) which simulate the mentioned edge contour and are movable relative to each other, by knife (31) for cutting out the mentioned foil part ( 41) loei between the perforation holes. Klearaeehlüasiger connection of the clamping jaws (15, 34) - through organs (17 * 3o, 36 »21, 22), around the film (4o) the cut-out film part (41) by means of the clamping jaws (15, 34) via a on a support ( 19) mirror support (2o) held in parallel to be tensioned by an element (28) which can be moved vertically against the mirror support, in order to accommodate the clamping frame (29) and to press it against the mirror support (2o) and to use drive and control devices. - gane (3, 12, 26) ssur step-wise actuation of the Per-foriörne.dela, the knife, the clasp, the organ and the element. 3). .A mirror manufactured according to the method according to claim 1, characterized by a mirror carrier (2o) and with it Bchlüesig vörbundenen KleaBarafeisen (29) and a « Mirror mounts and clasps are equally stretched, among other things held mirror film (4o). 4).-Veifehren according to claim 1, characterized gekennaeichnet that the Spie Gel carrier and / or the adhesive frame before cutting the eggs ■ zv / iftchsn.-the perforation lids on opposed soap the mirror foil. . BAD ORIEiNAL ■.-..- ■ ■ - ■ "'■ -00-Ö818 / 1 ^ 62 ^: "'"" 7 ^: ■ .. ■ 5) Method according to claim 1, characterized in that the mirror carrier and / or the Klenan frame after you cut the Slide away from the perforation holes Sides of the mirror film are attached, 6) Method according to claim 1 »characterized in that d.ie axial displacement of the mirror carrier and / or nasty Xle; .inframe until ■ the mirror film is touched before the mirror film is cut open. ■, 7) The method according to claim 1, characterized in that d: Le axial displacement of the mirror carrier and / or the frame frame until aur touching the mirror film after cutting open the spit _; · Sl film takes place. °) Device. According to claim 2, characterized in that the • means üvvei rollers (9 »Io) which press against one another in the plane, one of which is cyclically driven in the feed direction, eo · like one deflecting roller tangential to the plane and parallel to the rollers (8) have. 9 ) Device according to Claim 8, characterized in that in the conveying direction of the film in front of the deflection roller (8) a dancer (5) standing under the action of a spring (7) is arranged. Io) device according to claim 2, characterized in that the There are perforating needles and the knife as well as a serrated knife (31), which are used along the contour of the surface of the picture 009818 / T4S2 Γ . ■ =. , BATH -:. "■■. ■ '■■: .- ■ ■■. .. - 14 -'- Ζ" ^:. ■ '/ ■ / ■■■ - Foil surface is bendable, and that the pointed tip © is needle-shaped are trained. 11) Device according to claim Io, characterized gekennaelclmet that the The cutting angle in the area of adjacent prongs is approximately equal to the cutting angle of the prong tips. PeienienwÄK Dipf.-Ing. £ j & der Munich 13, ElisaitSKsrr. 34 BATH ORIGINAL 0098 18 / U82 Lee rse it