DE421406C - Wood connecting dowel - Google Patents
Wood connecting dowelInfo
- Publication number
- DE421406C DE421406C DESCH71988D DESC071988D DE421406C DE 421406 C DE421406 C DE 421406C DE SCH71988 D DESCH71988 D DE SCH71988D DE SC071988 D DESC071988 D DE SC071988D DE 421406 C DE421406 C DE 421406C
- Authority
- DE
- Germany
- Prior art keywords
- wood
- dowel
- contact surface
- teeth
- dowels
- 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
- 239000002023 wood Substances 0.000 title claims description 16
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000002360 explosive Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
Holzverbindungsdäbel. Gegenstand der Erfindung ist ein Zahadübel zur Verbind:ung von Hölzern, durch welchen Kräfte sowohl längs als auch quer zu seiner Achse übertragen werden können. Die Dübel sind sägezahnförrnig eingeschnitten oder geriffelt und sollen durch das Eingreifen der Zähne in die Wandungen. der Dübellöcher Schraubenwirkung ersetzen. An sich sind mit Zahnungen vexsehene Dübel bereits bekannt. Gemäß,der Erfindung erhalten die Zähne eben ihm Neigmg nach der Berührungsfläche der zu verbindenden Hölzer bin. Die Zähne sind also beiderseits der Berührungsfläche entgegengesetzt gerichtet, und die Dübel sind also geeignet, auch Zugkräfte in ihrer Längsrichtung auf die Hölzer zu übertragen. Der Dü- bej a nach Abb. i ist in Teilbährungen der Hölzer von der Berührungsfläche her eingelassen. Die Zähne können sich auf den ganzen Umfang erstrecken oder nur auf einen Teil, sie müssen ab-er gegen die Berührungsfläche der Hölzer gerichtet sein, damit sie auf Zug wirksam werden, also die Schraubenwirkung bei den bisher bekannten Holzverbindungen mit Einlagedübeln ersetzen können. Der Dübel b nach Abb. 2 durchdringt die Hölzer auf die ganze Dicke, er besitzt ebenfalls entgegengesetzt gexicl-itete Verzahnung oder Riffelung, der die gleiche Aufgabe wie beim Dübel nach Abb. i zufällt.Wood connecting dowels. The subject of the invention is a toothed dowel for connecting wood, through which forces can be transmitted both longitudinally and transversely to its axis. The dowels are cut in a sawtooth shape or grooved and are intended to be caused by the engagement of the teeth in the walls. of the dowel holes replace screw action. Per se, dowels provided with serrations are already known. According to the invention, the teeth are inclined towards the contact surface of the woods to be connected. The teeth are therefore directed in opposite directions on both sides of the contact surface, and the dowels are therefore also suitable for transmitting tensile forces in their longitudinal direction to the wood. The dowel according to Fig. I is embedded in parts of the wood from the contact area. The teeth can extend over the entire circumference or only on a part, they have to be directed against the contact surface of the wood so that they are effective on tension, i.e. can replace the screw action in the previously known wood connections with inlay dowels. The dowel b according to Fig. 2 penetrates the entire thickness of the wood, it also has oppositely gexicl-ited toothing or corrugation, which has the same task as the dowel according to Fig. I.
Uni die Zugwirkung zu verstarken, kann bei- den bolzenartigen Dübeln nach Abb. 2 an den Enden ein besonderes Kopfstück c gemäß Abb. 3 angeordnet werden, das #n eine; emprech,en-d ausgearbeitete Erweiterung des Dübellochs eingeschlagen wird und bei der Beanspruchung dm DübeLs auf Zug die Kräfte keilartig auf das Holz überträgt. Der Querschnitt wird so gewählt, daß der Druck möglicILst längs zur Faser abgesetzt undeine Sprengwirk=g, alscx ein Aufbpalten des Holzes, vermieden wird.To increase the tensile effect, a special head piece c according to Fig. 3 can be arranged at the ends of both bolt-like dowels according to Fig. 2, the #n one; Emprech, en-the elaborated expansion of the dowel hole is hammered in and when the dowel is subjected to tensile stress, the forces are transferred to the wood like a wedge. The cross-section is chosen so that the pressure is reduced as far as possible along the grain and an explosive effect, such as splitting of the wood, is avoided.
Das Eingreifen der verzahnten Enden der BeL#en in das Bauholz kann auch in bekannter Weise mit Hilfe eines Keils bewirkt werden, wobei der Bolzen am Ende geschlitzt werden muß. Wesentlich hierbei ist, daß der geschlitzte 22mbcIzen so eingesetzt wird, daß der Keil senkrecht zur Faserri#chtung des Holzes zu lk-geh kommt, der Druck wird dann längs zur Faser des Hälms ausgeübt, wobei ein- Aufspalten nicht eintreten kann. The engagement of the toothed ends of the BeL # s in the timber can also be effected in a known manner with the aid of a wedge, the bolt having to be slotted at the end. It is essential here that the slotted 22mbcIzen is inserted in such a way that the wedge comes perpendicular to the grain direction of the wood, the pressure is then applied along the grain of the stem, whereby splitting cannot occur.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH71988D DE421406C (en) | 1924-06-22 | 1924-06-22 | Wood connecting dowel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH71988D DE421406C (en) | 1924-06-22 | 1924-06-22 | Wood connecting dowel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE421406C true DE421406C (en) | 1925-11-11 |
Family
ID=7440347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH71988D Expired DE421406C (en) | 1924-06-22 | 1924-06-22 | Wood connecting dowel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE421406C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3954345A (en) * | 1975-02-27 | 1976-05-04 | Morris Max O | Self-locking dowell pin |
-
1924
- 1924-06-22 DE DESCH71988D patent/DE421406C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3954345A (en) * | 1975-02-27 | 1976-05-04 | Morris Max O | Self-locking dowell pin |
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