US2376721A - Pulling tool - Google Patents
Pulling tool Download PDFInfo
- Publication number
- US2376721A US2376721A US547082A US54708244A US2376721A US 2376721 A US2376721 A US 2376721A US 547082 A US547082 A US 547082A US 54708244 A US54708244 A US 54708244A US 2376721 A US2376721 A US 2376721A
- Authority
- US
- United States
- Prior art keywords
- screw
- tool
- crosshead
- bearing
- recess
- 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
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/062—Dismounting of ball or roller bearings
-
- 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
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53796—Puller or pusher means, contained force multiplying operator
- Y10T29/53848—Puller or pusher means, contained force multiplying operator having screw operator
- Y10T29/53857—Central screw, work-engagers around screw
- Y10T29/53861—Work-engager arms along or parallel to screw
- Y10T29/5387—Pivotal arms
Definitions
- This invention relates to a tool designed principally for the extraction of ball bearings or the like from recesses or blind holes.
- the extraction of ring-like devices from blind holes has been difficult and considerable time has been wasted in the performance of the operation.
- a still further object is to provide a tool which is inexpensive, can be conveniently carried, and will not readily get out of order.
- FIG. 1 is a section through a recessed structure containing a ball bearing to be removed therefrom, the tool constituting the present invention being shown immediately following its insertion thereinto.
- Figure 2 is a similar view showing the tool partially in section, after it has been adjusted to engage the bearing and after the bearing has been partially withdrawn.
- Figure 3 is a section on line 3-3 of Figure 1.
- I designates a crosshead having a screw thread opening 2 extending through the center thereof.
- the ends of the crosshead are forked as noted at 3 and extending across each of these forks is a pivot pin 4, on which is mounted a head 5 located at one end of an arm 6 constituting a jaw of the tool.
- the other end of the arm has a lug 1 extending laterally therefrom.
- the head 5 has a cam 8 extending from that end remote from arm 6, and this cam comprises two inclined faces 9 and I0 merging to form a rounded peak II.
- a jack'screw or threaded rod 12 is extended through and engages the wall of the opening 2, and this screw has a head [3 at one end for engagement by a wrench.
- a disc M Mounted on the screw between the crosshead l and the head [-3 is a disc M. That face of the disc nearest the crosshead is formed with an inwardly tapering recess l5, 7
- the portion of the structure having the recess has been indicated as S and in this recess is seated the object to be removed.
- the object to be removed In the present instance it is a ball bearing B.
- the tool is inserted into the bearing and recess until one end of the screw engages the bottom wall of the recess.
- the crosshead I is fed along the screw by rotating the screw and crosshead relative to each other until the lugs are positioned inwardly from the bearing B.
- the disc It is fed along the screw until it comes against the inclined faces 9 of the two heads 5. Feeding of the disc will cause it to swing the cam portions 8 ofthe head 5 toward each other, as shown in Figure 2, and at the same time cause the lugs I to move outwardly into position back of the bearing B.
- the screw I2 is rotated so as to feed the crosshead and the disc 14 toward the head I3 and as the screw is bearing against the bottom of the recess, such rotation will result in the forcible extraction or withdrawal of the bearing,
- a tool for removing rings and the like from blind holes including a crosshead, opposed members mounted therein, each having a cam at one end and a jaw at its other end and a fulcrum supported by the crosshead and located between the cam and jaw, each jaw comprisingan arm and a laterally extending lug, the lugs on the jaws being extended away from each other, a jack screw extending through and engaging a threaded opening in the crosshead between the members,
- said members and screw being insertible into the ring or the like to be removed, said screws being proportioned to engage and thrust against the bottom of the blind hole from which the ring or the like is to be removed, and means adjustably mounted on the screw for engaging the cams to shift the jaws apart, said means comprising a disc, there being a tapered recess in one face of the disc proportioned to receive the cams and draw them together.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Description
C. J. PIPER PULLING TOOL May 22, 1945.
Filed July 28, 1944 C. JPi vew IN VEN TOR.
Patented May 22, 1945 UNITED STATES PATENT OFFICE PULLING TOOL Charles J. Piper, Washington, D. C. Application July 28, 1944, Serial No. 547,082
1 Claim.
This invention relates to a tool designed principally for the extraction of ball bearings or the like from recesses or blind holes. Heretofore the extraction of ring-like devices from blind holes has been difficult and considerable time has been wasted in the performance of the operation.
It is the object of the present invention to provide a tool of this character which is simple and compact in construction and can be positioned readily within the recess or blind hole and the hearing or other object to be removed, it being possible thereafter to quickly adjust the tool so as to engage the bearing or other object, after which, by a further operation, the tool will act as a screw jack and forcibly remove the object to be withdrawn.
A still further object is to provide a tool which is inexpensive, can be conveniently carried, and will not readily get out of order.
With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein described, may be made within the scope of what is claimed, without departing from the spirit of the invention.
In the accompanying drawing the preferred form of the invention has been shown.
In said drawing Figure 1 is a section through a recessed structure containing a ball bearing to be removed therefrom, the tool constituting the present invention being shown immediately following its insertion thereinto.
Figure 2 is a similar view showing the tool partially in section, after it has been adjusted to engage the bearing and after the bearing has been partially withdrawn.
Figure 3 is a section on line 3-3 of Figure 1.
Referring to the figures by characters of reference, I designates a crosshead having a screw thread opening 2 extending through the center thereof. The ends of the crosshead are forked as noted at 3 and extending across each of these forks is a pivot pin 4, on which is mounted a head 5 located at one end of an arm 6 constituting a jaw of the tool. The other end of the arm has a lug 1 extending laterally therefrom. The head 5 has a cam 8 extending from that end remote from arm 6, and this cam comprises two inclined faces 9 and I0 merging to form a rounded peak II. A jack'screw or threaded rod 12 is extended through and engages the wall of the opening 2, and this screw has a head [3 at one end for engagement by a wrench.
Mounted on the screw between the crosshead l and the head [-3 is a disc M. That face of the disc nearest the crosshead is formed with an inwardly tapering recess l5, 7
Normally the arms 6 of the tool hang substantially parallel with the screw 8 2, as shown in Figure 1, at which time the distance between the outer ends of the lugs l is less than the diameter of the opening into which the tool is to be in-. serted.
The portion of the structure having the recess has been indicated as S and in this recess is seated the object to be removed. In the present instance it is a ball bearing B.
The tool is inserted into the bearing and recess until one end of the screw engages the bottom wall of the recess. The crosshead I is fed along the screw by rotating the screw and crosshead relative to each other until the lugs are positioned inwardly from the bearing B. At this time the disc It is fed along the screw until it comes against the inclined faces 9 of the two heads 5. Feeding of the disc will cause it to swing the cam portions 8 ofthe head 5 toward each other, as shown in Figure 2, and at the same time cause the lugs I to move outwardly into position back of the bearing B. With the parts thus set the screw I2 is rotated so as to feed the crosshead and the disc 14 toward the head I3 and as the screw is bearing against the bottom of the recess, such rotation will result in the forcible extraction or withdrawal of the bearing,
What is claimed is:
A tool for removing rings and the like from blind holes, including a crosshead, opposed members mounted therein, each having a cam at one end and a jaw at its other end and a fulcrum supported by the crosshead and located between the cam and jaw, each jaw comprisingan arm and a laterally extending lug, the lugs on the jaws being extended away from each other, a jack screw extending through and engaging a threaded opening in the crosshead between the members,
said members and screw being insertible into the ring or the like to be removed, said screws being proportioned to engage and thrust against the bottom of the blind hole from which the ring or the like is to be removed, and means adjustably mounted on the screw for engaging the cams to shift the jaws apart, said means comprising a disc, there being a tapered recess in one face of the disc proportioned to receive the cams and draw them together.
CHARLES J. PIPER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US547082A US2376721A (en) | 1944-07-28 | 1944-07-28 | Pulling tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US547082A US2376721A (en) | 1944-07-28 | 1944-07-28 | Pulling tool |
Publications (1)
Publication Number | Publication Date |
---|---|
US2376721A true US2376721A (en) | 1945-05-22 |
Family
ID=24183283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US547082A Expired - Lifetime US2376721A (en) | 1944-07-28 | 1944-07-28 | Pulling tool |
Country Status (1)
Country | Link |
---|---|
US (1) | US2376721A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2720021A (en) * | 1951-12-19 | 1955-10-11 | Ralph O Davis | Pilot bearing puller |
US2789342A (en) * | 1953-02-16 | 1957-04-23 | Pouell Mfg Company | Spring tool |
US3241223A (en) * | 1964-04-10 | 1966-03-22 | Oliver B Anderson | Bearing puller having grippers parallel to a screw element |
US4580325A (en) * | 1985-02-13 | 1986-04-08 | Westinghouse Electric Corp. | Winding temporary positioning apparatus for a dynamoelectric generator |
US4682395A (en) * | 1985-08-28 | 1987-07-28 | Horst Klann | Device for pushing wheel flange hubs and splined flange hubs of motor vehicles out of a shaft bearing |
US6158099A (en) * | 1997-08-19 | 2000-12-12 | Atoma International Inc. | Extraction tool for head rest retainer sleeve |
US20050132554A1 (en) * | 2003-12-18 | 2005-06-23 | Honeywell International Inc. | Compact removal feature and removal tool for rolling element bearings |
US20080276768A1 (en) * | 2007-05-07 | 2008-11-13 | Brock Thomas A | Manual clutch assembly and service tool |
US20120275818A1 (en) * | 2008-12-08 | 2012-11-01 | Mitsubishi Kagaku Imaging Corporation | Methods and devices for remanufacturing printer cartridges |
US10464372B2 (en) | 2012-09-20 | 2019-11-05 | Gkn Armstrong Wheels, Inc. | Lock ring spreader |
-
1944
- 1944-07-28 US US547082A patent/US2376721A/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2720021A (en) * | 1951-12-19 | 1955-10-11 | Ralph O Davis | Pilot bearing puller |
US2789342A (en) * | 1953-02-16 | 1957-04-23 | Pouell Mfg Company | Spring tool |
US3241223A (en) * | 1964-04-10 | 1966-03-22 | Oliver B Anderson | Bearing puller having grippers parallel to a screw element |
US4580325A (en) * | 1985-02-13 | 1986-04-08 | Westinghouse Electric Corp. | Winding temporary positioning apparatus for a dynamoelectric generator |
US4682395A (en) * | 1985-08-28 | 1987-07-28 | Horst Klann | Device for pushing wheel flange hubs and splined flange hubs of motor vehicles out of a shaft bearing |
US6158099A (en) * | 1997-08-19 | 2000-12-12 | Atoma International Inc. | Extraction tool for head rest retainer sleeve |
US20050132554A1 (en) * | 2003-12-18 | 2005-06-23 | Honeywell International Inc. | Compact removal feature and removal tool for rolling element bearings |
US7356926B2 (en) * | 2003-12-18 | 2008-04-15 | Honeywell International, Inc. | Removal tool and method of removing a bearing assembly |
US20080276768A1 (en) * | 2007-05-07 | 2008-11-13 | Brock Thomas A | Manual clutch assembly and service tool |
US7698795B2 (en) * | 2007-05-07 | 2010-04-20 | Gm Global Technology Operations, Inc. | Manual clutch assembly and service tool |
US20120275818A1 (en) * | 2008-12-08 | 2012-11-01 | Mitsubishi Kagaku Imaging Corporation | Methods and devices for remanufacturing printer cartridges |
US8478160B2 (en) * | 2008-12-08 | 2013-07-02 | Mitsubishi Kagaku Imaging Corporation | Methods and devices for remanufacturing printer cartridges |
US10464372B2 (en) | 2012-09-20 | 2019-11-05 | Gkn Armstrong Wheels, Inc. | Lock ring spreader |
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