US2455929A - Rotatable-joint clasp having safety locking means - Google Patents
Rotatable-joint clasp having safety locking means Download PDFInfo
- Publication number
- US2455929A US2455929A US770843A US77084347A US2455929A US 2455929 A US2455929 A US 2455929A US 770843 A US770843 A US 770843A US 77084347 A US77084347 A US 77084347A US 2455929 A US2455929 A US 2455929A
- Authority
- US
- United States
- Prior art keywords
- frame
- clasp
- sleeve
- rotatable
- locking means
- 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
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D17/00—Parachutes
- B64D17/22—Load suspension
- B64D17/30—Harnesses
- B64D17/32—Construction of quick-release box
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S24/00—Buckles, buttons, clasps
- Y10S24/30—Separable-fastener or required component thereof
- Y10S24/51—Separable-fastener or required component thereof including receiving member having cavity and mating member having insertable projection guided to interlock thereby
- Y10S24/53—Projection or cavity rotates about axis of cavity access opening to interlock
-
- 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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/40—Buckles
- Y10T24/4002—Harness
- Y10T24/4012—Clamping
- Y10T24/4019—Sliding part or wedge
-
- 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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45005—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] with third detached member completing interlock [e.g., hook type]
- Y10T24/45079—Belt, strap, harness, etc.
- Y10T24/45084—Belt, strap, harness, etc. for safety belt buckle, strap, harness, etc.
-
- 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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45005—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] with third detached member completing interlock [e.g., hook type]
- Y10T24/45089—Sliding or rotating element
Definitions
- This invention relates to a safety clasp for parachute harness, safety belts for airplanes and other flexible or jointed strip apparatus of similar character.
- One object of the present invention is to provide a clasp for flexible members which cannot be opened accidentally, but which will not jam or catch when opened deliberately.
- Another object is to provide a clasp that can be made light, but strong and requires no large holes through the strip material.
- Another object is to provide a clasp that can easily be made in quantity by the die casting process.
- Fig. 1 is an oblique view of the assembled-clasp, the flexible strips to be joined being shown in dashed line.
- Fig. 2 is a longitudinal section of the clasp taken on the line 2-2 of Fig. 1.
- Fig. 3 is a fragmentary view corresponding to Fig. 1 but showing the clasp partly disassembled.
- Fig. 4 is an oblique view of the frame and link members ready for assembly.
- Fig. 5 is a plan view of the frame.
- Fig. 6 is a top view of the slide.
- H is a frame of generally rectangular shape and section stiffened by a dividing inner cross member'or rib ll.
- One outer cross member or rib l2 has a rounded outer surface l3 and a rounded inner surface M. The top and bottom surfaces remain flat however, except for a small semicircular groove that is generally perpendicular to the rounded surfaces.
- a loop [6 of the strip material to be joined extends through a loop-retaining space ll.
- I8 is a link comprising a loop-retaining frame l9 in which there is a loop of strip material. to the loop-retaining frame l9 by a neck 21 of lesser width, there is a nearly circular sleeve 22.
- the sleeve 22 is accurately finished on the inner surface to snugly enclose the outer rib l2 of the frame It] and to rotate easily on the rounded Connected amended April 30, 1928; 370 O. G. 757) surfaces [3 and [4 thereof. It is evident that such a connection is a very strong construction.
- a slide 23 is provided to act as a keeper.
- the slide is of generally trapezoidal section and is as long as the sleeve 22 and accurately fits that part of the open space 24 in the sleeve where that space is not occupied by the outer rib l2 of the frame. That part of space 24 not occupied by the rib [2 also has a trapezoidal cross section, the narrower side presented outwardly.
- loop-retaining frame I is consequently held in substantially the same plane as frame ID as is shown in Fig. 2.
- Dropping out of the slide 23 is prevented by a spring loaded ball or other type of latch 25 which is inletted into the slide 23 at its middle point, so that when the ends of slide 23 are even with the ends of sleeve 22, the ball 25 and the detent IE will cooperate to latch the slide 23 in place.
- a lug 26 is provided on the slide 23 to provide both a housing for the spring loaded ball 25 and a handle through which a loop of cord 21 is brought by means of a hole 28.
- the loop 21 is a convenient hand grasp or pull.
- a clasp for joining strips of flexible or jointed material a frame of generally rectangular shape, a rounded outer and inner free edge on one outer cross member of said frame, a connecting link cooperating with the said edges, said link comprising a frame, a sleeve, a neck connecting said frame and sleeve, said sleeve having an open side of trapezoidal section wide enough at its outer edge to receive said outer cross member of the first mentioned frame when the latter is introduced at approximately a 90 angle and a bore adapted to rotatably receive said outer cross member and to engage its rounded edges, and a slide of generally trapezoidal section adapted to be insertedtherein,its..base incontact with said outer cross member to'fill substantially the space between a fiat side of said outer member of the frame within said sleeve and the line of outer.
- a clasp for joining stripsof fie'xible or jointed strip material a frame, a rounded outer and inner free edge on an outer cross member of saidframe,
- said link' comprising a frame, a sleeve,-'a"-neck connecting said link frame and sleeve, said link frame having an open side wide enough at its outer edge to receive the side of said outer cross member of the first mentioned frame and a bore: adapted to rotatably receive said "outer frame cross member by-itsrounded edges and a slideadapted to be inserted and retained in and to fill substantially the space between a flat side of said outer cross member of the frame within said sleeve and the line of outer surface contour of said sleeve.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Description
ROTATABLE-JOINT CLASP HAVING SAFETY LOCKING MEANS Filed Aug. '27, 1947 M. HATTAN Dec. 14, 1948.
2 Sheets-Sheet l JNVENTOR.
M 795 A/A77777/V Dec. 14, 1948. HATTAN 2,455,929
ROTATABLE-JOINT CLASP HAVING SAFETY LOCKING MEANS Filed Aug. 27, 1947 I f 2 Sheets-Sheet 2 IN V EN TOR.
Patented Dec. 14, 1948 UNlT EDSTATES PATENT OFFICE ROTATABLE-JOINT CLASP HAVING SAFETY LOCKING MEANS Mark Hattan, Pasadena, Calif. Application August 27,. 1947, Serial No. 770,843 2 claims. (01. 24-225) (Granted under the act of March 3, 1883, as
The invention described herein maybe manufactured and used by or for the Government for governmental purposes without payment to me of anyroyalty thereon.
This invention relates to a safety clasp for parachute harness, safety belts for airplanes and other flexible or jointed strip apparatus of similar character.
It has been noted that the present conventional clasps for such apparatus are imperfect because they are too easily opened by accident. A need exists for a clasp that is free from such defect but which will respond to deliberate operation without fail. v
One object of the present invention is to provide a clasp for flexible members which cannot be opened accidentally, but which will not jam or catch when opened deliberately.
Another object is to provide a clasp that can be made light, but strong and requires no large holes through the strip material.
Another object is to provide a clasp that can easily be made in quantity by the die casting process.
In the accompanying drawings:
Fig. 1 is an oblique view of the assembled-clasp, the flexible strips to be joined being shown in dashed line.
Fig. 2 is a longitudinal section of the clasp taken on the line 2-2 of Fig. 1.
Fig. 3 is a fragmentary view corresponding to Fig. 1 but showing the clasp partly disassembled.
Fig. 4 is an oblique view of the frame and link members ready for assembly.
Fig. 5 is a plan view of the frame.
Fig. 6 is a top view of the slide.
H] is a frame of generally rectangular shape and section stiffened by a dividing inner cross member'or rib ll. One outer cross member or rib l2 has a rounded outer surface l3 and a rounded inner surface M. The top and bottom surfaces remain flat however, except for a small semicircular groove that is generally perpendicular to the rounded surfaces. As can be seen in Fig. 1 a loop [6 of the strip material to be joined extends through a loop-retaining space ll.
Referring now to Figs. 1, 3 and 4, I8 is a link comprising a loop-retaining frame l9 in which there is a loop of strip material. to the loop-retaining frame l9 by a neck 21 of lesser width, there is a nearly circular sleeve 22. The sleeve 22 is accurately finished on the inner surface to snugly enclose the outer rib l2 of the frame It] and to rotate easily on the rounded Connected amended April 30, 1928; 370 O. G. 757) surfaces [3 and [4 thereof. It is evident that such a connection is a very strong construction.
In order to prevent a conceivable accidental loosening of the clasp which might otherwise occur if the sleeve 22 were to rotate inward degrees, a slide 23 is provided to act as a keeper. As shown in Fig. 3, the slide is of generally trapezoidal section and is as long as the sleeve 22 and accurately fits that part of the open space 24 in the sleeve where that space is not occupied by the outer rib l2 of the frame. That part of space 24 not occupied by the rib [2 also has a trapezoidal cross section, the narrower side presented outwardly. In other words, the outer rib l2 and the slide 23 cooperate to fill entirely the empty space 24 in the sleeve up to its outer contour, the wide base of the slide being in contact with the rib l2 and in doing so they prevent the sleeve from rotating on the rib 12, or the slide 23 being pulled directly out of the space 24 by an outwardly directed lift. Loop-retaining frame I!) is consequently held in substantially the same plane as frame ID as is shown in Fig. 2.
Dropping out of the slide 23 is prevented by a spring loaded ball or other type of latch 25 which is inletted into the slide 23 at its middle point, so that when the ends of slide 23 are even with the ends of sleeve 22, the ball 25 and the detent IE will cooperate to latch the slide 23 in place. A lug 26 is provided on the slide 23 to provide both a housing for the spring loaded ball 25 and a handle through which a loop of cord 21 is brought by means of a hole 28. The loop 21 is a convenient hand grasp or pull.
In operation, to put the clasp together, the link I8 is brought in contact with frame In at right angles thereto. Outer rib l2 of frame In is now introduced into the sleeve 22. When the rib l2 has fully entered the sleeve 22 the link 3 is rotated through 90 degrees to the position shown in Fig. 1. The slide 23 is now introduced from the end into the space 24 and slid along rib 12 by means of loop 21 until the ball 25 enters the detent l5. Reversal of these operations will again open the clasp.
I claim as my invention:
1. In a clasp for joining strips of flexible or jointed material, a frame of generally rectangular shape, a rounded outer and inner free edge on one outer cross member of said frame, a connecting link cooperating with the said edges, said link comprising a frame, a sleeve, a neck connecting said frame and sleeve, said sleeve having an open side of trapezoidal section wide enough at its outer edge to receive said outer cross member of the first mentioned frame when the latter is introduced at approximately a 90 angle and a bore adapted to rotatably receive said outer cross member and to engage its rounded edges, and a slide of generally trapezoidal section adapted to be insertedtherein,its..base incontact with said outer cross member to'fill substantially the space between a fiat side of said outer member of the frame within said sleeve and the line of outer.
surface contour of said sleeve.
2. A clasp for joining stripsof fie'xible or jointed strip material, a frame, a rounded outer and inner free edge on an outer cross member of saidframe,
a link cooperating with said frame, said link' comprising a frame, a sleeve,-'a"-neck connecting said link frame and sleeve, said link frame having an open side wide enough at its outer edge to receive the side of said outer cross member of the first mentioned frame and a bore: adapted to rotatably receive said "outer frame cross member by-itsrounded edges and a slideadapted to be inserted and retained in and to fill substantially the space between a flat side of said outer cross member of the frame within said sleeve and the line of outer surface contour of said sleeve.
MARK HATTAN.
REFERENGES CHEW The following references are of record in the file of this patent:
UNITEDw STATES PATENTS
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US770843A US2455929A (en) | 1947-08-27 | 1947-08-27 | Rotatable-joint clasp having safety locking means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US770843A US2455929A (en) | 1947-08-27 | 1947-08-27 | Rotatable-joint clasp having safety locking means |
Publications (1)
Publication Number | Publication Date |
---|---|
US2455929A true US2455929A (en) | 1948-12-14 |
Family
ID=25089865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US770843A Expired - Lifetime US2455929A (en) | 1947-08-27 | 1947-08-27 | Rotatable-joint clasp having safety locking means |
Country Status (1)
Country | Link |
---|---|
US (1) | US2455929A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2552728A (en) * | 1946-03-22 | 1951-05-15 | Ernest G Liner | Separable connector |
US2629914A (en) * | 1950-04-26 | 1953-03-03 | Alfred C Ross | Suspension device for fishing nets |
US3001257A (en) * | 1957-06-12 | 1961-09-26 | Girodet Henri Marcel | Method and means for removably securing the clip of a stocking or sock suspender or the like to its loop |
US3121931A (en) * | 1961-08-01 | 1964-02-25 | Sperry Rand Corp | Tape connector |
US4266326A (en) * | 1979-08-06 | 1981-05-12 | Hong Lai F | Watchband connector |
DE102006004852A1 (en) * | 2006-02-02 | 2007-08-16 | Thomas Finsterwalder | Harness for paraglide pilots, has chest belt lock centerpiece or chest belt connecting link, which have round knob at which chest belt connecting link or chest belt lock centerpiece are hooked using keyholes |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US658115A (en) * | 1899-12-27 | 1900-09-18 | James D B Murray | Blanket-fastener. |
US1008578A (en) * | 1910-10-17 | 1911-11-14 | North And Judd Mfg Company | Clasp. |
US1467465A (en) * | 1922-10-11 | 1923-09-11 | Martin H Wiedmann | Separable fastener and lock |
US1920408A (en) * | 1931-07-13 | 1933-08-01 | Irving Air Chute Co Inc | Coupling device |
FR767686A (en) * | 1934-07-20 | |||
US2346887A (en) * | 1942-09-19 | 1944-04-18 | Winkler Friedrich | Clasp for necklaces, bracelets, and the like |
-
1947
- 1947-08-27 US US770843A patent/US2455929A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR767686A (en) * | 1934-07-20 | |||
US658115A (en) * | 1899-12-27 | 1900-09-18 | James D B Murray | Blanket-fastener. |
US1008578A (en) * | 1910-10-17 | 1911-11-14 | North And Judd Mfg Company | Clasp. |
US1467465A (en) * | 1922-10-11 | 1923-09-11 | Martin H Wiedmann | Separable fastener and lock |
US1920408A (en) * | 1931-07-13 | 1933-08-01 | Irving Air Chute Co Inc | Coupling device |
US2346887A (en) * | 1942-09-19 | 1944-04-18 | Winkler Friedrich | Clasp for necklaces, bracelets, and the like |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2552728A (en) * | 1946-03-22 | 1951-05-15 | Ernest G Liner | Separable connector |
US2629914A (en) * | 1950-04-26 | 1953-03-03 | Alfred C Ross | Suspension device for fishing nets |
US3001257A (en) * | 1957-06-12 | 1961-09-26 | Girodet Henri Marcel | Method and means for removably securing the clip of a stocking or sock suspender or the like to its loop |
US3121931A (en) * | 1961-08-01 | 1964-02-25 | Sperry Rand Corp | Tape connector |
US4266326A (en) * | 1979-08-06 | 1981-05-12 | Hong Lai F | Watchband connector |
DE102006004852A1 (en) * | 2006-02-02 | 2007-08-16 | Thomas Finsterwalder | Harness for paraglide pilots, has chest belt lock centerpiece or chest belt connecting link, which have round knob at which chest belt connecting link or chest belt lock centerpiece are hooked using keyholes |
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