Title:
【発明の名称】合成材料製拡開型アンカーボルト
Document Type and Number:
Japanese Patent JP2837227
Kind Code:
B2
Abstract:
The expanding dowel, which is especially suitable for soft retaining materials, has an expanding part (1) which is made up of a first expanding section (6) and a second expanding section (7), which adjoins the first in the opposite direction to the insertion direction. The length (1) of the first expanding section (6) corresponds to at least a third of the length (L) of the expanding part (1) and has longitudinal slots which are open in the insertion direction. Longitudinal slots (12) are provided in the second expanding section (7), offset in the circumferential direction with respect to the former longitudinal slots, the longitudinal slots (12) extending outwards from a central opening (3) and running in a corrugated manner in the opposite sense to one another. The central opening (3), which is used for holding and guiding an expanding element, tapers in the second expanding section (7) in the insertion direction and has a maximum unobstructed width (W) corresponding to 0.4 to 0.7 times the external diameter (D) of the first expanding section (6).
Inventors:
HAINTSU BISUPINKU
Application Number:
JP9235290A
Publication Date:
December 14, 1998
Filing Date:
April 09, 1990
Export Citation:
Assignee:
HIRUTEI AG
International Classes:
F16B13/04; F16B13/06; F16B13/08; F16B13/12; E04B1/41; F16B13/14; F16B35/04; (IPC1-7): F16B13/08; E04B1/41; F16B13/04; F16B13/14
Domestic Patent References:
| JP62237105A | ||||
| JP56120808A | ||||
| JP59166707A | ||||
| JP2225812A |
Attorney, Agent or Firm:
Akihide Sugimura (1 outside)