US3376632A - Method for making umbrella tubes - Google Patents

Method for making umbrella tubes Download PDF

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Publication number
US3376632A
US3376632A US496997A US49699765A US3376632A US 3376632 A US3376632 A US 3376632A US 496997 A US496997 A US 496997A US 49699765 A US49699765 A US 49699765A US 3376632 A US3376632 A US 3376632A
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United States
Prior art keywords
tube
making
caplan
assembly
tubes
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 - Lifetime
Application number
US496997A
Inventor
Caplan Isadore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MARKIN TUBING Inc
Original Assignee
MARKIN TUBING Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US301460A external-priority patent/US3266120A/en
Application filed by MARKIN TUBING Inc filed Critical MARKIN TUBING Inc
Priority to US496997A priority Critical patent/US3376632A/en
Application granted granted Critical
Publication of US3376632A publication Critical patent/US3376632A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece
    • Y10T29/49798—Dividing sequentially from leading end, e.g., by cutting or breaking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49927—Hollow body is axially joined cup or tube
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49945—Assembling or joining by driven force fit

Definitions

  • the present invention relates to a method for automatically making umbrella tubes, that is, the central rods or shafts commonly used in folding umbrellas.
  • An object of the invention is the provision of a generally improved and more satisfactory method for making such tubes.
  • Another object is the provision of a method which can be performed automatically on suitable machinery.
  • Still another object is the provision of a method for making an umbrella tube from suitable lengths of plain metal tubing, with a minimum of separate operations and maximum economy of time and expense.
  • a further object of the invention is the provision of a method for making umbrella tubes which involve the provision of a locating dimple near one end of the tube, for subsequent use in locating the handle which is later to be placed on the tube, and the provision of a projection or abutment stop near the other end of the tube, together with a suitable tip on the second end of the tube, and suitable latch slots intermediate the ends of the tube.
  • a still further object of the invention is to provide a method for making umbrella tubes by forming a dimple in the terminal portions of a tube, feeding the tube through a knurling station to knurl one end of the tube, continuing the feed of the tube into an operating position, forming a plurality of umbrella latch receiving slots in a tube in the operating position, forming a tube with a stop projection, a handle positioning mark, and inserting a tip in the other end of the tube in the operating position, conveying the tube from the operating position into a swaging position for swaging the end of the tube about the tip, and removing the tube from the swaging position.
  • FIG. 1 is a plan view of an umbrella rod made on the machine according to the invention.
  • FIG. 2 is a rear elevation of the umbrella rod shown in FIG. 1;
  • FIG. 3 is a perspective showing one end of a piece of tubing formed with a dimple
  • FIG. 4 is a longitudinal cross section through the end of a piece of tubing showing how the dimple holds a tip in the tube ready for swaging;
  • FIGS. 5A, 5B and 5C show a plan view of the automatic umbrella tube making machine embodying the present invention
  • FIG. 6 is an enlarged vertical longtudinal cross-section of a tip holder assembly taken approximately on line 66 of FIG. 5C;
  • FIG. 7 is a plan view of the rivet holder assembly on an enlarged scale to show details of construction.
  • FIG. 8 is a vertical cross-section taken approximately on line 8-8 of FIG. 7;
  • FIG. 9 is a horizontal cross-section taken approximately on line 9-9 of FIG. 6;
  • FIG. 10 is a fragmentary vertical cross-section taken substantially on the line 10-10 of FIG. 7 showing the rivet holder assembly in front elevation;
  • FIG. 11 is an enlarged vertical cross-section taken approximately on line 11-11 of FIG. 5C showing an inside elevation of the left hopper plate assembly with the tube knurling assembly, the die assembly and the adjacent tube slotting and punching assembly;
  • FIG. 12 is a cross-section through the knurling assembly taken approximately on line 12-12 of FIG. 11;
  • FIG. 13 is another cross-section through the knurling assembly taken approximately on line 13-13 of FIG. 11;
  • FIG. 14 is an enlarged detail side elevation of one of the spring pressed latch casings with the cover removed showing the details of construction;
  • FIG. 15 is a front elevation of the vertical punch and slotting assembly on an enlarged scale
  • FIG. 16 is a plan view of the vertical punch and slotting assembly on the enlarged scale as shown in FIG.
  • FIG. 17 is a rear elevation of the vertical punch and slotting assembly as shown in FIG. 15;
  • FIG. 18 is a plan view on an enlarged scale of the horizontal punch and slotting assembly
  • FIG. 19 is a front elevation of the horizontal punch and slotting assembly as shown in FIG. 18;
  • FIG. 20 is a vertical cross-section taken approximately on line 20-20 of FIG. 18;
  • FIG. 21 is a side elevation of the horizontal punch and slotting assembly
  • FIG. 22 is a rear elevation of the horizontal punch and slotting assembly
  • FIG. 23 is a detail cross-section of the horizontal punch and slotting assembly taken approximately on line 23-23 of FIG. 18;
  • FIG. 24 is an enlarged plan view of the crimper assembly and a portion of the left hopper plate
  • FIG. 25 is a rear elevation of the crimper assembly and hopper plate as shown in FIG. 24;
  • FIG. 26 is a front elevation of the crimper assembly
  • FIG. 27 is an enlarged cross-section showing the crunper die construction taken approximately on line 27-27 of FIG. 26;
  • FIG. 28 is a vertical cross-section taken approximately on line 28-28 of FIG. SA;
  • 29 is an enlarged plan view of the swager feed ro s;
  • FIG. 30 is a rear elevation of the swager feed rolls
  • FIG. 31 is a vertical cross-section of the swager feed roll assembly taken approximately on line 31-31 of FIG. 29;
  • FIG. 32 is an enlarged plan view showing the left portion of the swager feed hopper and the swager pusher and brake assembly;
  • FIG. 33 is an end elevation of the pusher and brake assembly looking from the left hand side of FIG. 32;
  • FIG. 34 is a rear elevation of the pusher
  • FIG. 35 is an enlarged fragmentary rear elevation of the swager with portions broken away and shown in crosssection to illustrate details of contruction.
  • FIG. 36 is a wiring diagram showing the electrical connections to the several motors, relays and other controls for automatically controlling operation of the machine.
  • the method according to the present invention can best be understood by first obtaining an understanding of the preferred form of machine for carrying out the method. Such machine will now be described.
  • the present invention provides a machine for forming predetermined length of tubing of a desired size or sizes into a completed umbrella tube ready for the assembly of the remaining umbrella parts thereon.

Description

A ril 9, 1968 l. CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1963 19 Sheets-Sheet l A P0 22 LL April 9, 1968 l. CAPLAN METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12,
19 Sheets-Sheet vmm mum Om? wvv mm April 9, 1968 I. CAPLAN METHOD FOR MAKING UMBRELLA TUBES 19 Sheets-Sheet 3 Original Filed Aug. 12 1963 April 9, 1968 l. CAPLAN METHOD FOR MAKING UMBRELLA TUBES l9 Sheets-Sheet 4 Original Filed Aug. 12 1963 April 9, 1968 I. CAPLAN METHOD FOR MAKING UMBRELLA TUBES l9 Sheets-Sheet .5
lint! I. CAPLAN April 9, 1968 METHOD FOR MAKING UMBRELLA TUBES l9 Sheets-Sheet 6 Original Filed Aug. 12 1963 FIG. 8
April 1968 l. CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1963 19 Sheets-Sheet 7 79 J76 F r firu4 |OO----QlQ--IOO a &2
-- 85L us 88 ess2 FIG. l3 us FIG. !4
FIG. 9
April 9, 1968 CAPLAN METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12 1963 19 Sheets-Sheet s April 9, 1968 l. CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES FIG. l6
April 9, 1968 l. cA PLAN 3,3 76,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12. 1963 19 Sheets-Sheet 10 FIG. I8
FIG. 20
FIG. l9
April 9, 1968 CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1963 19 Sheets-Sheet 11 I70 I98 IdiZ I 80 April 9, 1968 1. CAPLAN METHOD FOR MAKING UMBRELLA TUBES l9 Sheets-Sheet 1:;
Original Filed Aug. 12 1963 April 9, 1968 CAPLAN 7 METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1963 19 SheetsSheet 15 April 9, 1968 l. CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1963 19 Sheets-Sheet l4 ggsg 284 A ril 9, 1968 I. CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12 1963 19 Sheets-Sheet l5 FIG. 28
IPB ZPB l April 9, 1968 I. CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1963 19 Sheets-Sheet 16 422 1 zsz ggpfiso 360 382 380 38| 38| F IG. 29 W384 402 FIG. 30
Aprii 9, 1968 l. CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1963 19 Sheets-Sheet 1'/ April 9, 1968 1. CAPLAN 4 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1965 19 Sheets-Sheet l8 FIG. 34
FIG. 33
April '9, 1968 l. CAPLAN 3,376,632
METHOD FOR MAKING UMBRELLA TUBES Original Filed Aug. 12, 1963 19 Sheets-Sheet 1.9
nite
3,376,632 Patented Apr. 9, 1968 3,376,632 METHOD FOR MAKING UMBRELLA TUBES Isadore Caplan, Brighton, N.Y., assignor of one-half to Markin Tubing, Inc, Rochester, N.Y., a corporation of New York Original application Aug. 12, 1963, Ser. No. 301,460, now Patent No. 3,266,120, dated Aug. 16, 1966. Divided and this application Oct. 18, 1965, Ser. No. 496,997
Claims. (Cl. 29-417) This application is a division of application Ser. No. 301,460, now Patent No. 3,266,120; filed August 12, 1963.
The present invention relates to a method for automatically making umbrella tubes, that is, the central rods or shafts commonly used in folding umbrellas.
An object of the invention is the provision of a generally improved and more satisfactory method for making such tubes.
Another object is the provision of a method which can be performed automatically on suitable machinery.
Still another object is the provision of a method for making an umbrella tube from suitable lengths of plain metal tubing, with a minimum of separate operations and maximum economy of time and expense.
A further object of the invention is the provision of a method for making umbrella tubes which involve the provision of a locating dimple near one end of the tube, for subsequent use in locating the handle which is later to be placed on the tube, and the provision of a projection or abutment stop near the other end of the tube, together with a suitable tip on the second end of the tube, and suitable latch slots intermediate the ends of the tube.
A still further object of the invention is to provide a method for making umbrella tubes by forming a dimple in the terminal portions of a tube, feeding the tube through a knurling station to knurl one end of the tube, continuing the feed of the tube into an operating position, forming a plurality of umbrella latch receiving slots in a tube in the operating position, forming a tube with a stop projection, a handle positioning mark, and inserting a tip in the other end of the tube in the operating position, conveying the tube from the operating position into a swaging position for swaging the end of the tube about the tip, and removing the tube from the swaging position.
These and other desirable objects may be attained in the manner disclosed as an illustrative embodiment of the invention in the following description and in the accompanying drawings forming a part hereof, in which:
FIG. 1 is a plan view of an umbrella rod made on the machine according to the invention;
FIG. 2 is a rear elevation of the umbrella rod shown in FIG. 1;
FIG. 3 is a perspective showing one end of a piece of tubing formed with a dimple;
FIG. 4 is a longitudinal cross section through the end of a piece of tubing showing how the dimple holds a tip in the tube ready for swaging;
FIGS. 5A, 5B and 5C show a plan view of the automatic umbrella tube making machine embodying the present invention;
FIG. 6 is an enlarged vertical longtudinal cross-section of a tip holder assembly taken approximately on line 66 of FIG. 5C;
FIG. 7 is a plan view of the rivet holder assembly on an enlarged scale to show details of construction.
FIG. 8 is a vertical cross-section taken approximately on line 8-8 of FIG. 7;
FIG. 9 is a horizontal cross-section taken approximately on line 9-9 of FIG. 6;
FIG. 10 is a fragmentary vertical cross-section taken substantially on the line 10-10 of FIG. 7 showing the rivet holder assembly in front elevation;
FIG. 11 is an enlarged vertical cross-section taken approximately on line 11-11 of FIG. 5C showing an inside elevation of the left hopper plate assembly with the tube knurling assembly, the die assembly and the adjacent tube slotting and punching assembly;
1 FIG. 12 is a cross-section through the knurling assembly taken approximately on line 12-12 of FIG. 11;
FIG. 13 is another cross-section through the knurling assembly taken approximately on line 13-13 of FIG. 11;
FIG. 14 is an enlarged detail side elevation of one of the spring pressed latch casings with the cover removed showing the details of construction;
FIG. 15 is a front elevation of the vertical punch and slotting assembly on an enlarged scale;
FIG. 16 is a plan view of the vertical punch and slotting assembly on the enlarged scale as shown in FIG.
FIG. 17 is a rear elevation of the vertical punch and slotting assembly as shown in FIG. 15;
FIG. 18 is a plan view on an enlarged scale of the horizontal punch and slotting assembly;
' FIG. 19 is a front elevation of the horizontal punch and slotting assembly as shown in FIG. 18;
FIG. 20 is a vertical cross-section taken approximately on line 20-20 of FIG. 18;
FIG. 21 is a side elevation of the horizontal punch and slotting assembly;
FIG. 22 is a rear elevation of the horizontal punch and slotting assembly;
FIG. 23 is a detail cross-section of the horizontal punch and slotting assembly taken approximately on line 23-23 of FIG. 18;
FIG. 24 is an enlarged plan view of the crimper assembly and a portion of the left hopper plate;
FIG. 25 is a rear elevation of the crimper assembly and hopper plate as shown in FIG. 24;
FIG. 26 is a front elevation of the crimper assembly;
FIG. 27 is an enlarged cross-section showing the crunper die construction taken approximately on line 27-27 of FIG. 26;
FIG. 28 is a vertical cross-section taken approximately on line 28-28 of FIG. SA;
11516. 29 is an enlarged plan view of the swager feed ro s;
FIG. 30 is a rear elevation of the swager feed rolls;
FIG. 31 is a vertical cross-section of the swager feed roll assembly taken approximately on line 31-31 of FIG. 29;
FIG. 32 is an enlarged plan view showing the left portion of the swager feed hopper and the swager pusher and brake assembly;
FIG. 33 is an end elevation of the pusher and brake assembly looking from the left hand side of FIG. 32;
FIG. 34 is a rear elevation of the pusher;
FIG. 35 is an enlarged fragmentary rear elevation of the swager with portions broken away and shown in crosssection to illustrate details of contruction; and
FIG. 36 is a wiring diagram showing the electrical connections to the several motors, relays and other controls for automatically controlling operation of the machine.
The method according to the present invention can best be understood by first obtaining an understanding of the preferred form of machine for carrying out the method. Such machine will now be described.
The present invention provides a machine for forming predetermined length of tubing of a desired size or sizes into a completed umbrella tube ready for the assembly of the remaining umbrella parts thereon. The 'umbr'ella

Claims (1)

  1. 3. THE METHOD OF MAKING AN UMBRELLA TUBE WHICH COMPRISES THE STEPS OF PROVIDING A LENGTH OF TUBING, FORMING AN INWARDLY PROJECTING DIMPLE AT ONE END THEREOF TO REDUCE THE INTERNAL SIZE OF THE TUBE ON ONE DIAMETER, PLACING IN SAID DIMPLED END A TIP MEMBER HAVING A SHANK PORTION OF SUCH DIAMETER AS TO HAVE A FRICTION FIT BETWEEN THE DIMPLE AND THE OPPOSITE WALL OF THE TUBING, AND THEN SWAGING SAID TUBING INWARDLY AROUND SAID SHANK PORTION TO REDUCE THE INSIDE DIAMETER OF THE TUBING TO GRIP SAID SHANK PORTION TIGHTLY.
US496997A 1963-08-12 1965-10-18 Method for making umbrella tubes Expired - Lifetime US3376632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US496997A US3376632A (en) 1963-08-12 1965-10-18 Method for making umbrella tubes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US301460A US3266120A (en) 1963-08-12 1963-08-12 Machine for making umbrella tubes
US496997A US3376632A (en) 1963-08-12 1965-10-18 Method for making umbrella tubes

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6547224B2 (en) * 2001-04-12 2003-04-15 Delphi Technologies, Inc. Pneumatic self leveling suspension damper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872151A (en) * 1931-05-15 1932-08-16 Sheaffer W A Pen Co Tip for mechanical pencils
US2509006A (en) * 1948-08-14 1950-05-23 Robert J Lynn Mechanical pencil with lead storage magazine
US2580910A (en) * 1949-02-08 1952-01-01 S & C Electric Co Contact construction
US2854744A (en) * 1956-02-17 1958-10-07 Sydney R Crockett Method of locking and sealing tubular structures

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872151A (en) * 1931-05-15 1932-08-16 Sheaffer W A Pen Co Tip for mechanical pencils
US2509006A (en) * 1948-08-14 1950-05-23 Robert J Lynn Mechanical pencil with lead storage magazine
US2580910A (en) * 1949-02-08 1952-01-01 S & C Electric Co Contact construction
US2854744A (en) * 1956-02-17 1958-10-07 Sydney R Crockett Method of locking and sealing tubular structures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6547224B2 (en) * 2001-04-12 2003-04-15 Delphi Technologies, Inc. Pneumatic self leveling suspension damper

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