DE2152458C3 - Connection of parts made of rigid foam - Google Patents
Connection of parts made of rigid foamInfo
- Publication number
- DE2152458C3 DE2152458C3 DE19712152458 DE2152458A DE2152458C3 DE 2152458 C3 DE2152458 C3 DE 2152458C3 DE 19712152458 DE19712152458 DE 19712152458 DE 2152458 A DE2152458 A DE 2152458A DE 2152458 C3 DE2152458 C3 DE 2152458C3
- Authority
- DE
- Germany
- Prior art keywords
- parts
- thread
- threaded
- foam
- screwed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000006260 foam Substances 0.000 title claims 14
- 239000000463 material Substances 0.000 claims 5
- 239000010410 layer Substances 0.000 claims 3
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 2
- 239000002344 surface layer Substances 0.000 claims 2
- 229920001169 thermoplastic Polymers 0.000 claims 2
- 239000004416 thermosoftening plastic Substances 0.000 claims 2
- 241001122767 Theaceae Species 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000007596 consolidation process Methods 0.000 claims 1
- 239000006261 foam material Substances 0.000 claims 1
- 238000005187 foaming Methods 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000002984 plastic foam Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000012260 resinous material Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
- F16B12/26—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using snap-action elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Connection Of Plates (AREA)
- Tables And Desks Characterized By Structural Shape (AREA)
Description
men und sein Schlitz 28 verengt sich praktisch bis auf NuIL Dabei nimmt der Außendurchmesser des Kopfes 26 bis auf den Innendurchmesser der Bohrung 38 ab. Sobald jedoch die Hinterkante des Kopfes 26 den Übergang zwischen Bohrung 38 und Kammer 40 passiert hat, öffnet sich der Schlitz 28 und der Kopf 26 füllt die Kammer 40 vollständig aus. Diese Spreizbewegung des Schaftes 24 wird durch das Auflaufen des Kopfes 26 auf den Spreizkonus 44 unterstützt Dieser greift in die Bohrung bzw. die im Kopf 26 vorgesehenen Schlitze 28 ein und spreizt die den Kopf 26 bildenden Abschnitte auf. Dies bedeutet, daß die Rastfläche 34 an die Anschlagfläche 41 angedrückt wird. Es ergibt sich das in Fig.3 gezeigte Bild. Die beiden Flächen 34 und 41 liegen aufeinander und widersetzen sich jeder Bewegung, die die beiden Teile 1© and 12 voneinander trennen will.men and its slot 28 is practically narrowed down to NuIL. The outside diameter of the Head 26 down to the inner diameter of the bore 38. However, as soon as the rear edge of the head 26 has passed the transition between the bore 38 and the chamber 40, the slot 28 and opens the head 26 completely fills the chamber 40. This spreading movement of the shaft 24 is caused by the Accumulation of the head 26 on the expansion cone 44 supports this engages in the bore or in the Head 26 provided slots 28 and spreads the sections forming the head 26. This means that the latching surface 34 rests against the stop surface 41 is pressed. The result is the picture shown in Fig. 3. The two surfaces 34 and 41 lie on top of one another and oppose any movement that want to separate the two parts 1 © and 12 from each other.
Gemäß der Darstellung in Fig.3 werden die beiden Teile 10 und 12 noch durch einen engen Spalt voneinander abgetrennt Dieser Spalt kann breiter oder schmaler sein und auch die Größe Null haben. Zum Lösen der beiden Teile 10 und 12 muß der Spannsrift 22 durchtrennt werden. Hierzu wird z.B. eine Säge in den die Teile 10 und 12 trennenden Schlitz eingeschoben und der Spannstift 22 wird durchgesägt Unter Umständen muß der Spalt zwischen denAs shown in Figure 3, the two Parts 10 and 12 still separated from one another by a narrow gap. This gap can be wider or be narrower and also have the size zero. To loosen the two parts 10 and 12, the tensioning shaft 22 must be severed. For this purpose, e.g. a The saw is inserted into the slot separating the parts 10 and 12 and the dowel pin 22 is sawed through. Under certain circumstances, the gap between the
ίο beiden Teilen 10 und 12 durch Eintreiben eines Keiles geschaffen oder erweitert werden. Nach dem Durchtrennen des Spannstiftes 22 lassen sich das Gewindestück 20 und das Gewindegegenstück 36 herausschrauben. Zum erneuten Verbinden der beidenίο both parts 10 and 12 can be created or expanded by driving in a wedge. After By severing the dowel pin 22, the threaded piece 20 and the threaded counterpart 36 can be unscrewed. To reconnect the two
is Teile wird das Gewindestück 20 durch ein neues einen Spannstift 22 aufweisendes Gewindestück 20 ersetztThe threaded piece 20 is replaced by a new one a threaded piece 20 having a dowel pin 22 replaced
Claims (1)
sonders lymet EtestigKeitf des^ Schaummafcriafe \ x Fjg.1 'ein Schnitt durch zwei miteinander zu verbesteht. "* bindende Teile,characterized in that the application example provided in the example of the Andean rigid foam parts (10, 12) shown in the drawing, the invention is now described in more detail benen thread (44, 16), made of a fine layer (IR). In the drawing is
In addition, the etestigKeitf des ^ Schaummafcriafe \ x Fig. 1 'suggests a cut through two together. "* binding parts,
ander zu verbindenden Hartschaumteilen eingedreht F i g. 1 zeigt Abschnitte der miteinander zu verbinwird. ao denden Teile 10 und 12. Im gezeigten Beispiel han-Bekannt ist eine Tischplatte mit einer Trägerplatte delt es sich um Hartschaumteile, in die Gewindebohaus Kunststoffschaum. In diese Platte sind aus einem rungen 14 und 16 eingeformt sind. Die Gewindebohharten Werkstoff bestehende Gewindedübel eingelas- rangen 14 und 16 sind Trapezgewinde und weisen ten, über die die Tischplatte mit einem Untergestell eine Schicht aus Integralschaum 18 besonders hoher verbunden wird. Diese aus einem härteren Werkstoff as Härte auf. Diese Schicht 18 entsteht beim Schäumbestehenden Gewindedübel sind nötig, da der Kunst- Vorgang durch rasches Abkühlen und eine Verdichstoffschaum der Trägerplatte nicht genügend Festig- tung der an einem Kern anliegender» Schaumbekeit für den Halt von Gewindeschrauben aufweist reiche.The invention relates to a connection of parts.
other rigid foam parts to be connected are screwed in F i g. 1 shows sections to be connected to each other. ao end parts 10 and 12. In the example shown, a table top with a support plate is made of rigid foam parts, in the threaded hole plastic foam. In this plate stanchions 14 and 16 are formed. The threaded dowels 14 and 16, which are as hard as possible, are inserted into the material, are trapezoidal threads and have a particularly high layer of integral foam 18 connected to the table top with an underframe. This made of a harder material as hardness. This layer 18 arises in the case of the existing foam thread anchors are necessary because the artificial process through rapid cooling and a compression foam of the carrier plate does not provide sufficient consolidation of the foam that is attached to a core to hold threaded screws.
fläche zu erhalten (deutsche Patentschrift 871 056). In die Gewindebohrung 14 des anderen Teils 10 Bekannt ist weiter ein aus thermoplastischem, 40 ist Jas Gewindegegenstück 36 eingeschraubt. Dieses harzartigem Material gespritzter Schaumstoffkörper weist eine Bohrung 38 mit einem konisch verlaufentnit einer aus dem gleichen Material bestehenden be- den Eingang und eine sich an die Bohrung 38 ansonders harten Oberflächenschicht. Diese feste schließende Kammer 40 auf. Eine Anschlagfläche 41 Außenhaut ergibt sich beim Aushärten des Materials ist an tier der Bohrung 38 zugewandten Seite der von selbst und erklärt sich durch eine besonders 45 Kammer 40 ausgebildet. In der Kammer 40 befindet hohe Verdichtung des thermoplastischen Ausgangs- sich eine Platte 42 mit einem Spreizkones 44. Auf ihmaterials an den Formwänden (deutsche Auslege- ren einander zugekehrten Stirnseiten weisen das GeSchrift 1181897). windestück 20 und das Gewindegegenstück 36(German utility model 1 942 242). Because of the As shown in FIG. 2 is a thread-specific threaded dowel, the manufacture of the insert 20 of a connecting element in the threaded thread is complex. In addition, the bore 16 is screwed in. This threaded piece 20 drives that the dowel loosens in the foam. has a dowel pin 22 with a shaft 24 and a head 26 pressed from synthetic material is also known. A desk or, if necessary, a desk. During the pressing, internal threads are formed through the parts in certain two crossed slots 28. In this thread 35 entire length of the roll pins? 22 through. When not in use, the head is screwed in with a tapered end 30 and a cylindrical synthetic compound to close the threaded section 32. The locking surface 34 is located on the rear edge of the cylindrical bores and a smooth external section 32.
area (German patent specification 871 056). In the threaded hole 14 of the other part 10 is also known a thermoplastic, 40 Jas threaded counterpart 36 is screwed. This resinous material injected foam body has a bore 38 with a conical course with an entrance made of the same material and a particularly hard surface layer on the bore 38. This tight closing chamber 40 on. A stop surface 41 outer skin is produced when the material hardens on the side facing the bore 38 by itself and is explained by a special 45 chamber 40. In the chamber 40 there is a high compression of the thermoplastic starting material - there is a plate 42 with an expanding cone 44. On top of it material on the mold walls (German experts refer to the document 1181897). thread piece 20 and the thread counter piece 36
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712152458 DE2152458C3 (en) | 1971-10-21 | 1971-10-21 | Connection of parts made of rigid foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712152458 DE2152458C3 (en) | 1971-10-21 | 1971-10-21 | Connection of parts made of rigid foam |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2152458A1 DE2152458A1 (en) | 1973-05-17 |
DE2152458B2 DE2152458B2 (en) | 1974-05-16 |
DE2152458C3 true DE2152458C3 (en) | 1974-12-19 |
Family
ID=5823004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19712152458 Expired DE2152458C3 (en) | 1971-10-21 | 1971-10-21 | Connection of parts made of rigid foam |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2152458C3 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2727458A1 (en) * | 1977-06-18 | 1979-01-11 | Dyckerhoff & Widmann Ag | Hard polyurethane foam building component with varying foam density - is foamed in a mould with heat absorbing metal inserts which are removed after moulding |
DE2826178C3 (en) * | 1978-06-15 | 1982-02-11 | Peter Ing.(grad.) 4401 Altenberge Schmitz | Plate-shaped, multilayer component |
US4695704A (en) * | 1979-07-23 | 1987-09-22 | Andis Matthew L | Hair grooming attachment for a curling iron |
DE3247343C2 (en) * | 1982-12-17 | 1986-05-22 | Günter Hans 1000 Berlin Kiss | Shaped body, consisting of binder-containing fibrous or particulate materials that are pressed and surface-laminated under the application of pressure and heat |
FR2596821A1 (en) * | 1986-04-07 | 1987-10-09 | Gigot Philippe | Self-supporting structure which can be used especially as a piece of furniture and is composed of assembled plastic plates |
CN205780138U (en) * | 2016-07-07 | 2016-12-07 | 朱震球 | A kind of bracing type connection clip |
PL238669B1 (en) * | 2017-12-22 | 2021-09-20 | Skowronska Syntia Belini | Concealed furniture convector |
CN216788890U (en) * | 2021-07-01 | 2022-06-21 | 微石集团有限公司 | Splicing structural part |
-
1971
- 1971-10-21 DE DE19712152458 patent/DE2152458C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2152458B2 (en) | 1974-05-16 |
DE2152458A1 (en) | 1973-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |