US2433240A - Doorknob - Google Patents
Doorknob Download PDFInfo
- Publication number
- US2433240A US2433240A US58357345A US2433240A US 2433240 A US2433240 A US 2433240A US 58357345 A US58357345 A US 58357345A US 2433240 A US2433240 A US 2433240A
- Authority
- US
- United States
- Prior art keywords
- knob
- cap
- tubular
- tubular member
- schlage
- 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
- 239000000463 material Substances 0.000 description 7
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000002184 metal Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/10—Details of socket shapes
-
- 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
- Y10T292/00—Closure fasteners
- Y10T292/82—Knobs
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/70—Interfitted members
- Y10T403/7026—Longitudinally splined or fluted rod
- Y10T403/7028—Splayed or having a cam surface for anti-backlash
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/70—Interfitted members
- Y10T403/7075—Interfitted members including discrete retainer
- Y10T403/7077—Interfitted members including discrete retainer for telescoping members
Definitions
- This invention relates to door knobs and the like and particularly to a structure whereby a knob made from a plastic material may be applied and rigidly secured to a, tubular metallic reenforcing member.
- the object of the present invention is generally to improve and simplify the construction and operation of knobs. of the character described and especially to provide a structure whereby a knob made from a plastic material may be applied and rigidly secured to a tubular metallic reenforcing member, and this in turn is secured to the metallic spindle of a door lock of the like.
- Fig. 1 is a central vertical section of the knob and the reenforcing member showing them assembled
- Fig. 2 is a perspective view of the tubular me- I ed or machined from a plastic material such as Bakelite, Lucite or similar plastics.
- the knob has a central opening formed therein and extending longitudinally therethrough.
- An annular shoulder 2 is formed adjacent one end of the opening, and a plurality of recesses 3 terminating in shoulders 4 are formed adjacent the opposite end of the knob.
- a tubular metallic reenforcing member B is employed. This member is closed at its outer end by a cap 5 which is permanently secured, and this cap engages the shoulder 2 when the tubular member is inserted and thereby secures the knob against endwise movement in one direction.
- the knob must also be secured against longitudinal movement in the opposite direction, and the knob must also be secured against rotation on the tubular member.
- a plurality of bendable prongs or lugs 6 are formed on the tubular member as clearly shown in Fig. 2.
- the tube B is made of spring steel or a like material the prongs will be forced inwardly when the tube is inserted in the knob and pushed therethrough, and they will obviously spring outwardly into the recesses formed for their reception the moment the cap engagesvthe shoulder 2.
- the tube is made of soft steel or a like metal the 2 lugs or prongs may be bent outwardly into the recesses by a suitable expanding tool.
- the knob will be rigidly secured to the tubular member, both against longitudinal and rotational movement.
- the tubular member reenforces and strengthens the knob. It forms a means of securing and supporting the knob, and it forms a means for securing the konb as a whole to a metallic spindie as a set screw or any other suitable means may be employed to secure the tubular member to the spindle.
- the exterior surface of the knob may be cylindrical; it may be grooved; it may be poly-faced or it may be shaped in any manner to produce various desirable ornamental effects, and while this and other features of the invention have been more or less specifically described and illustrated, it should be understood that changes may be resorted towithin the scope of the appended claim and that the materials and finish of the several parts employed may be such as the experience or judgment of the manufacturer may dictate or varying conditions or uses may demand.
- a door knob having a central passage formed therein and extending longitudinally therethrough, an annular shoulder formed adjacent the outer end of the passage, a plurality of spaced recesses formed adjacent the other end of the passage, each recess terminating in a shoulder, a tubular member insertible in the passage formed in the knob, a plurality of perforations formed adjacent one end of the tube, a cap fit: ting said end of thetube, a plurality of lugs on the cap bent into the perforations on the tube to secure the 'cap against removal from the tube, said cap seating on the annular shoulder, and a plurality of lugs on the tubular member, said lugs being bendable to enter the recesses and engage the shoulders to secure the knob against endwise and rotational movement on the tubular,
Landscapes
- Adornments (AREA)
Description
DOORKNOB Filed March 19, 1945 INVENTOR.
wmmwza a- Patented Dec. 23, 1947 DOORKNOB Walter R. Schlage, Burlingame, CaliL; Anna Schlage, executrix of said Walter It. Schlage, deceased, assignor to Schlage Lock Company, San Francisco, Calii'., a corporation of Californla Application March 19, 1945, Serial No. 583,573
1 Claim. 1
This invention relates to door knobs and the like and particularly to a structure whereby a knob made from a plastic material may be applied and rigidly secured to a, tubular metallic reenforcing member.
The object of the present invention is generally to improve and simplify the construction and operation of knobs. of the character described and especially to provide a structure whereby a knob made from a plastic material may be applied and rigidly secured to a tubular metallic reenforcing member, and this in turn is secured to the metallic spindle of a door lock of the like.
The knob and its metallic reenforcing member is shown by way of illustration in the accompanying drawings in which:
Fig. 1 is a central vertical section of the knob and the reenforcing member showing them assembled;
Fig. 2 is a perspective view of the tubular me- I ed or machined from a plastic material such as Bakelite, Lucite or similar plastics. The knob has a central opening formed therein and extending longitudinally therethrough. An annular shoulder 2 is formed adjacent one end of the opening, and a plurality of recesses 3 terminating in shoulders 4 are formed adjacent the opposite end of the knob.
The securing of a knob formed or made from plastic material to a metal spindle is a problem, and is difficult due to the lack of strength in such materials. To overcome this difllculty a tubular metallic reenforcing member B is employed. This member is closed at its outer end by a cap 5 which is permanently secured, and this cap engages the shoulder 2 when the tubular member is inserted and thereby secures the knob against endwise movement in one direction.
The knob must also be secured against longitudinal movement in the opposite direction, and the knob must also be secured against rotation on the tubular member.
To accomplish this a plurality of bendable prongs or lugs 6 are formed on the tubular member as clearly shown in Fig. 2. It the tube B is made of spring steel or a like material the prongs will be forced inwardly when the tube is inserted in the knob and pushed therethrough, and they will obviously spring outwardly into the recesses formed for their reception the moment the cap engagesvthe shoulder 2. 0n the other hand it the tube is made of soft steel or a like metal the 2 lugs or prongs may be bent outwardly into the recesses by a suitable expanding tool. In either case when the cap engages the shoulder 2 and the prongs engage the shoulders 4 at the ends of the recesses, the knob will be rigidly secured to the tubular member, both against longitudinal and rotational movement.
The tubular member reenforces and strengthens the knob. It forms a means of securing and supporting the knob, and it forms a means for securing the konb as a whole to a metallic spindie as a set screw or any other suitable means may be employed to secure the tubular member to the spindle.
The exterior surface of the knob may be cylindrical; it may be grooved; it may be poly-faced or it may be shaped in any manner to produce various desirable ornamental effects, and while this and other features of the invention have been more or less specifically described and illustrated, it should be understood that changes may be resorted towithin the scope of the appended claim and that the materials and finish of the several parts employed may be such as the experience or judgment of the manufacturer may dictate or varying conditions or uses may demand.
Having thus described my invention, what I claim and desire to secure by Letters Patent is:
A door knob having a central passage formed therein and extending longitudinally therethrough, an annular shoulder formed adjacent the outer end of the passage, a plurality of spaced recesses formed adjacent the other end of the passage, each recess terminating in a shoulder, a tubular member insertible in the passage formed in the knob, a plurality of perforations formed adjacent one end of the tube, a cap fit: ting said end of thetube, a plurality of lugs on the cap bent into the perforations on the tube to secure the 'cap against removal from the tube, said cap seating on the annular shoulder, and a plurality of lugs on the tubular member, said lugs being bendable to enter the recesses and engage the shoulders to secure the knob against endwise and rotational movement on the tubular,
member.
WALTER R. SCHLAGE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1 1,653,514 Schlage Dec. 20, 1927 1,721,626 Higley July 23, 1929 2,023,941 Voight Dec. 10, 1935 2,242,508 Ching May 20, 1941
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58357345 US2433240A (en) | 1945-03-19 | 1945-03-19 | Doorknob |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58357345 US2433240A (en) | 1945-03-19 | 1945-03-19 | Doorknob |
Publications (1)
Publication Number | Publication Date |
---|---|
US2433240A true US2433240A (en) | 1947-12-23 |
Family
ID=24333658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US58357345 Expired - Lifetime US2433240A (en) | 1945-03-19 | 1945-03-19 | Doorknob |
Country Status (1)
Country | Link |
---|---|
US (1) | US2433240A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954246A (en) * | 1956-06-29 | 1960-09-27 | Nadim P Totah | Methods and means for forming high-strength joints |
US4877001A (en) * | 1988-08-17 | 1989-10-31 | Ford Motor Company | Fuel vapor recovery system |
US4945782A (en) * | 1989-04-28 | 1990-08-07 | General Motors Corporation | Mounting device for securing a ring gear to a drive drum |
US5060620A (en) * | 1988-09-21 | 1991-10-29 | Ford Motor Company | Motor vehicle fuel vapor emission control assembly |
US20120311820A1 (en) * | 2011-06-09 | 2012-12-13 | Po-Han Chang | Knob and process of manufacturing same |
US11306521B2 (en) * | 2018-12-04 | 2022-04-19 | GM Global Technology Operations LLC | Automatic adjustable lock knob bezel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1653514A (en) * | 1924-09-10 | 1927-12-20 | Schlage Company | Glass-knob mounting |
US1721626A (en) * | 1926-02-23 | 1929-07-23 | Charles O Chandler | Fastening means |
US2023941A (en) * | 1935-04-01 | 1935-12-10 | Sargent & Co | Lock with demountable cores |
US2242508A (en) * | 1940-06-21 | 1941-05-20 | John F Ching | Door lock |
-
1945
- 1945-03-19 US US58357345 patent/US2433240A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1653514A (en) * | 1924-09-10 | 1927-12-20 | Schlage Company | Glass-knob mounting |
US1721626A (en) * | 1926-02-23 | 1929-07-23 | Charles O Chandler | Fastening means |
US2023941A (en) * | 1935-04-01 | 1935-12-10 | Sargent & Co | Lock with demountable cores |
US2242508A (en) * | 1940-06-21 | 1941-05-20 | John F Ching | Door lock |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954246A (en) * | 1956-06-29 | 1960-09-27 | Nadim P Totah | Methods and means for forming high-strength joints |
US4877001A (en) * | 1988-08-17 | 1989-10-31 | Ford Motor Company | Fuel vapor recovery system |
US5060620A (en) * | 1988-09-21 | 1991-10-29 | Ford Motor Company | Motor vehicle fuel vapor emission control assembly |
US4945782A (en) * | 1989-04-28 | 1990-08-07 | General Motors Corporation | Mounting device for securing a ring gear to a drive drum |
US20120311820A1 (en) * | 2011-06-09 | 2012-12-13 | Po-Han Chang | Knob and process of manufacturing same |
US11306521B2 (en) * | 2018-12-04 | 2022-04-19 | GM Global Technology Operations LLC | Automatic adjustable lock knob bezel |
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