Claims
- 1. In a tapered screw member provided with a tapered thread, the improvement characterized in that a guide means for inducing thread engagement is positioned on an extension from said tapered thread and in a groove formed on a portion of said extension, said guide means in said groove having a projection height higher than the height of the nearest crest of said tapered thread for engaging the thread of a receiving member and guiding said nearest crest of said tapered thread into thread engagement with the thread of a member into which said tapered screw member is being threaded.
- 2. The tapered screw member as defined in claim 1, wherein the guide means is constituted of an elastic material such as metal, plastics, rubber or the like.
- 3. In a tapered screw member provided with a tapered thread, the improvement characterized in that a guide means for inducing thread engagement is positioned on an extension from said tapered thread and in a groove formed on a portion of said extension, said guide means having a projection height higher than the height of the nearest crest of said tapered thread, said guide means being in a threaded adapter guide mounted on the end of the tapered screw.
- 4. The tapered screw member as defined in claim 1 or 2, wherein the guide means is a continuous projection.
- 5. The tapered screw member as defined in claim 1 or 2, wherein the guide means comprises an annular body formed in about one roll of coil.
- 6. The tapered screw member as defined in claim 1, wherein the guide means comprises a ring body having elasticity with a predetermined height of projection formed peripherally.
- 7. In a tapered screw member provided with a tapered external thread for threading engagement with internal threads on a receiving member, the improvement characterized in that a guide means for inducing thread engagement is positioned on one of said members, said guide means having a projected height higher than the height of the crest of the immediately adjacent thread on said one of said members for engaging the thread of said receiving member and guiding said immediately adjacent thread into engagement with said threads on said receiving member.
- 8. The tapered screw member is defined in claim 3 wherein said guide means is constituted of an elastic material such as metal, plastics, rubber or the like.
- 9. The tapered screw member as defined in either claim 3 or claim 8 wherein the guide means is a continuous projection.
- 10. The tapered screw member as defined in either claim 3 or claim 8 wherein the guide means comprises an annular body formed in about one roll of coil.
- 11. The tapered screw member as defined in either claim 3 or claim 8 wherein the guide means comprises a ring body having elasticity with a predetermined height of projection formed peripherally.
Priority Claims (3)
Number |
Date |
Country |
Kind |
58-26753 |
Feb 1982 |
JPX |
|
57-135459 |
Aug 1982 |
JPX |
|
58-52945[U] |
Apr 1983 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 599,436 filed Apr. 2, 1984, filed as PCT JP83/00248 on Aug. 1, 1983 now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (3)
Number |
Date |
Country |
511118 |
Mar 1955 |
CAX |
1117840 |
Mar 1956 |
FRX |
393675 |
Jun 1933 |
GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
599436 |
Apr 1984 |
|