JPS54108343A - Drum for hoist - Google Patents
Drum for hoistInfo
- Publication number
- JPS54108343A JPS54108343A JP1546778A JP1546778A JPS54108343A JP S54108343 A JPS54108343 A JP S54108343A JP 1546778 A JP1546778 A JP 1546778A JP 1546778 A JP1546778 A JP 1546778A JP S54108343 A JPS54108343 A JP S54108343A
- Authority
- JP
- Japan
- Prior art keywords
- guide groove
- circumferential surface
- rope guide
- drum shell
- welding portion
- 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.)
- Pending
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE: To positively work a rope guide groove to a surface of a drum shell, by welding butt portions on an inner surface of a cylinder.
CONSTITUTION: After a drum shell 6 is shaped by cylindrically rounding a steel plate by means of a roll machine, press molding, etc., butt portions are welded on the inner circumferential surface so that a welding portion 7 of the butt surfaces not be projected to an outer circumferential surface of an inner cylinder mother material. Consequently, the extreme difference of hardness between the mother material on the outer circumferential surface of the drum shell 6 and the welding portion 7 becomes small, thus allowing the efficient and accurate cutting of a rope guide groove 2. And if the depth of the welding portion 7 from the inner circumferential surface is made so as not to reach the rope guide groove 2, the formation working of the rope guide groove 2 is further facilitated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1546778A JPS54108343A (en) | 1978-02-15 | 1978-02-15 | Drum for hoist |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1546778A JPS54108343A (en) | 1978-02-15 | 1978-02-15 | Drum for hoist |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54108343A true JPS54108343A (en) | 1979-08-24 |
Family
ID=11889596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1546778A Pending JPS54108343A (en) | 1978-02-15 | 1978-02-15 | Drum for hoist |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54108343A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02233499A (en) * | 1989-01-27 | 1990-09-17 | Marantec Antrieb & Steuerungstechnik Gmbh & Co Prod Ohg | Rope receiving drum and its producing method |
-
1978
- 1978-02-15 JP JP1546778A patent/JPS54108343A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02233499A (en) * | 1989-01-27 | 1990-09-17 | Marantec Antrieb & Steuerungstechnik Gmbh & Co Prod Ohg | Rope receiving drum and its producing method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2024073B (en) | Spot welding machine for heavy-duty operations on surface contoured workpieces | |
JPS55150901A (en) | Machine for working circumferential surface | |
JPS5762873A (en) | Production of laminated iron core | |
JPS54108343A (en) | Drum for hoist | |
JPS5570420A (en) | Forming method for thick walled uo steel pipe | |
JPS55120909A (en) | Working method for curved hole with taper | |
JPS5336792A (en) | Machine tool | |
JPS5214983A (en) | Machine for cutting bead weld | |
JPS51147089A (en) | Apparatus for continuous edge preparation of die steel | |
JPS5219392A (en) | Deburring method of sawed section of steel materials | |
JPS56102415A (en) | Cutting method of pipe and apparatus thereof | |
JPS56105831A (en) | Manufacture of punch for use of press work | |
JPS5243185A (en) | Automatic shearing machine | |
JPS5311310A (en) | Built-up method for rising cylinder | |
JPS5524886A (en) | Nonncircular circumferential surface working method and lathe machine for said method | |
JPS5415455A (en) | Method of producing drum having guide groove | |
JPS5232193A (en) | Chippong device | |
JPS52136494A (en) | Process for grooving brittle material | |
JPS53148083A (en) | Machine for effecting finishing work on bent pipes manufactured by pipeebending press | |
JPS544866A (en) | Ironing method for cylinder | |
JPS5286584A (en) | Apparatus for automatically cutting formed steel | |
JPS51147088A (en) | Apparatus for continuous edge preparation of die steel | |
JPS53125954A (en) | Method of producing thick pipes | |
JPS521685A (en) | Method for shape correction and cutting of steel sheet | |
JPS5554646A (en) | Production of cylinder for engine |