US2254179A - Safety seat - Google Patents

Safety seat Download PDF

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Publication number
US2254179A
US2254179A US336722A US33672240A US2254179A US 2254179 A US2254179 A US 2254179A US 336722 A US336722 A US 336722A US 33672240 A US33672240 A US 33672240A US 2254179 A US2254179 A US 2254179A
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US
United States
Prior art keywords
spreader
seat
belt
sling
loops
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
US336722A
Inventor
John A Hoyt
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.)
JAMES A HOYT
JOHN F FONDER
Original Assignee
JAMES A HOYT
JOHN F FONDER
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
Application filed by JAMES A HOYT, JOHN F FONDER filed Critical JAMES A HOYT
Priority to US336722A priority Critical patent/US2254179A/en
Application granted granted Critical
Publication of US2254179A publication Critical patent/US2254179A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0006Harnesses; Accessories therefor
    • A62B35/0012Sit harnesses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/39Cord and rope holders

Definitions

  • This invention relates to safety seats of the general type of the boatswains chair but with additional features contributing to the safety of the occupant.
  • the main objects of this invention are to provide an improved form of safety seat for supporting a worker in high places so as to obviate any necessity for conscious attention to balance and thus permit complete concentration upon work in progress; to provide a safety seat of this kind that will not become unsafe upon the breakagev of any-single element of its structure; to provide an eflicient combination of a few simple, sturdy partsrelated one to another in the normal functioning of the device and interconnected so that any one of them is fully supplemented by another in the safe support of the occupant; and to provide a novel arrangement of the various parts to prevent the rope slings from applying strains to the adjacent parts of the occupants body which might interfere with blood circulation and cause benumbing and discomfort.
  • Figure 1 is a perspective view showing a man occupying the safety seat and in the act of raising himself in a tree.
  • Fig. 2 is a top plan of the safety seat.
  • Fig. 3 is a view somewhat similar to Figure 2 but showing the parts in perspective.
  • Fig. 4 is a section taken through the spreader member on the line 44 of Fig. 2.
  • Fig, 5 is a detail of a knot tying the end of the lanyard to the suspension cord.
  • the safety seat comprises a seat board I which carries the weight of the occupant and is carried by a sling 2 of rope which connects the seat member with a spreader member 3. waist of the operator and is connected by means of a sling 5 with the spreader 3.
  • the spreader is in turn secured to a suspension cord 6 which is thrown over an elevated support like a tree branch and has a loop I tied about the middle
  • a belt 4 encircles the ing for this purpose what is known as a brake knot, a form of which is shown loosely tied for illustration in Fig. 5.
  • this knot When drawn up tight, this knot will not slip. because of the binding action of the part of lanyard 6.2 that is under strain. When relieved of this strain this knot this knot can be. grasped by the workman and, slidralong the cord 6.I to lower the seat. When released the knot automatically resumes its hold through strain on the lanyard 6.2,
  • the slings 2 and 5 are preferably made of a single piece of rope, coiled upon itself to form the two sling loops, one for supporting the seat and the other for connection to the belt, the ends of the rope being spliced together as at 5.l and the splice being preferably either behind the belt, as shown, or below the seat.
  • the seat board I is provided with end notches 9 to receive the adjacent parts of the slingiand these partsare confined in the notches 9 by straps Ill.
  • the belt may be a stout leather strap provided with guide straps l l for holding the belt in place with respect to the sling 5 and a lashing I2 for securing the belt against shifting along the sling.
  • the straps II are also conveniently located for supporting snap hooks l3 by means of which tools or supplies may be readily suspended and the belt is also provided with the usual buckle l4 connecting its ends.
  • the spreader 3 is made up of two parts [5 which are parallel with each other and grooved on their opposed, faces to receive adjacent portions of the sling loops 2 and 5, the grooving being such that each rope will be individually tightly gripped through the clamping action of the spreader members l5 when they are formed together by the ferrules I6 which are driven over their ends and fastened in place by set screws or pins ll.
  • the operation of the device shown is in genity of the cords of the seat sling pinching the operator's thighs and interfering with his blood circulation; and there is added safety through the provision of the belt and the belt sling connecting the belt with the spreader.
  • the belt sling 5 permits the workman to lean out when necessary even to the extent of entirely relieving the seat from any of the load.
  • the lashings I8 which connect the two slings also contribute to the safety and the belt prevents any possibility of the occupant losing his balance and falling from the seat. If the seat sling should break, the belt sling will support the workman. The belt also gives confidence to the workman and enables him to have full use of his hands and to devote attention to his work without giving thought to the necessity of maintaining his position on the seat.
  • the device By shifting the lashings IS the device can be adjusted to the form of the individual workman who is to use it.
  • a safety seat comprising a horizontally elongated spreader, a pair of endless sling loops, each having a portion of its peripheral length extending along and attached at spaced points to said spreader, a belt within and attached to one of said loops, a seat attached within the other said loop, and a suspension cord having a part attached to said spreader and embracing the adjacent parts of both loops of said pair.
  • a safety seat comprising a seat board, a belt, a horizontally elongated rigid spreader, an endless cord coiled to form a loop surrounding said belt and a loop embracing said seat board, and each said loop having a part lying along and secured to said spreader at points adjacent both ends thereof, and a suspension cord having a looped part embracing adjacent portions of said spreader and of each said endless cord loops, said seat loop being of such length that said spreader will normally lie substantially in the plane of the belt under normal load.
  • a safety seat comprising a spreader, a pair of endless sling loops, each having a portion of its peripheral length attached at spaced points to said spreader, a belt within and attached to one of said loops, a seat attached within the other said loop, a suspension cord having a loop tied about said spreader and the adjacent parts of both loops of said pair, said spreader comprising a pair of opposed clamping bars grooved lengthwise in their adjacent faces to receive portions of said loops and pressed together to embrace and clamp said sling loops against relative slipping.
  • a safety seat comprising a spreader, a pair of sling loops, each having a portion of its peripheral length disposed along said spreader, a belt within and attached to one of said loops, a seat attached within the other said loop, said spreader comprising a pair of opposed clamping bars grooved lengthwise in their adjacent faces to receive portions of said loops and pressed together to embrace and clamp said sling loops against relative slipping, and a suspension cord having a part attached to said spreader and embracing parts of both said sling loops.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Description

J. A. HOYT SAFETY SEAT Aug. 26, 1941.
Filed May 25, 1940 Patented Aug. 26, 1941 SAFETY SEAT John A. Hoyt, Glenview, 111., assignor of one-third to John F. Fonder, Evanston, Ill., and one-third to James A. Hoyt, Chicago, Ill.
Application May 23, 1940, Serial No. 336,722
- hauling portion 6.I of the suspension cord 6, us-
4 Claims.
This invention relates to safety seats of the general type of the boatswains chair but with additional features contributing to the safety of the occupant.
The main objects of this invention are to provide an improved form of safety seat for supporting a worker in high places so as to obviate any necessity for conscious attention to balance and thus permit complete concentration upon work in progress; to provide a safety seat of this kind that will not become unsafe upon the breakagev of any-single element of its structure; to provide an eflicient combination of a few simple, sturdy partsrelated one to another in the normal functioning of the device and interconnected so that any one of them is fully supplemented by another in the safe support of the occupant; and to provide a novel arrangement of the various parts to prevent the rope slings from applying strains to the adjacent parts of the occupants body which might interfere with blood circulation and cause benumbing and discomfort.
Cir
A specific embodiment of this invention is shown in the accompanying drawing in which:
Figure 1 is a perspective view showing a man occupying the safety seat and in the act of raising himself in a tree.
Fig. 2 is a top plan of the safety seat.
Fig. 3 is a view somewhat similar to Figure 2 but showing the parts in perspective.
Fig. 4 is a section taken through the spreader member on the line 44 of Fig. 2.
Fig, 5 is a detail of a knot tying the end of the lanyard to the suspension cord.
In the form shown in the drawing, the safety seat comprises a seat board I which carries the weight of the occupant and is carried by a sling 2 of rope which connects the seat member with a spreader member 3. waist of the operator and is connected by means of a sling 5 with the spreader 3. The spreader is in turn secured to a suspension cord 6 which is thrown over an elevated support like a tree branch and has a loop I tied about the middle A belt 4 encircles the ing for this purpose what is known as a brake knot, a form of which is shown loosely tied for illustration in Fig. 5. When drawn up tight, this knot will not slip. because of the binding action of the part of lanyard 6.2 that is under strain. When relieved of this strain this knot can be. grasped by the workman and, slidralong the cord 6.I to lower the seat. When released the knot automatically resumes its hold through strain on the lanyard 6.2,
The slings 2 and 5 are preferably made of a single piece of rope, coiled upon itself to form the two sling loops, one for supporting the seat and the other for connection to the belt, the ends of the rope being spliced together as at 5.l and the splice being preferably either behind the belt, as shown, or below the seat.
The seat board I is provided with end notches 9 to receive the adjacent parts of the slingiand these partsare confined in the notches 9 by straps Ill.
The belt may be a stout leather strap provided with guide straps l l for holding the belt in place with respect to the sling 5 and a lashing I2 for securing the belt against shifting along the sling. The straps II are also conveniently located for supporting snap hooks l3 by means of which tools or supplies may be readily suspended and the belt is also provided with the usual buckle l4 connecting its ends.
The spreader 3 is made up of two parts [5 which are parallel with each other and grooved on their opposed, faces to receive adjacent portions of the sling loops 2 and 5, the grooving being such that each rope will be individually tightly gripped through the clamping action of the spreader members l5 when they are formed together by the ferrules I6 which are driven over their ends and fastened in place by set screws or pins ll.
Adjacent each side of the belt and at points spaced some distance from the ends of the spreader 3, there is a lashing l8 which securely fastens together the respective side portions of the slings 2 and 5. The length of the seat sling 2 is such that the spreader 3 will be at the level of the plane of the belt 4 when the weight of the wearer is normally carried by the suspension cord and seat sling as shown in Fig. 1.
The operation of the device shown is in genity of the cords of the seat sling pinching the operator's thighs and interfering with his blood circulation; and there is added safety through the provision of the belt and the belt sling connecting the belt with the spreader. By clamping the sling ropes tightly between the members of the spreader, each is securely held independent of the other.
The belt sling 5 permits the workman to lean out when necessary even to the extent of entirely relieving the seat from any of the load.
The lashings I8 which connect the two slings also contribute to the safety and the belt prevents any possibility of the occupant losing his balance and falling from the seat. If the seat sling should break, the belt sling will support the workman. The belt also gives confidence to the workman and enables him to have full use of his hands and to devote attention to his work without giving thought to the necessity of maintaining his position on the seat.
By shifting the lashings IS the device can be adjusted to the form of the individual workman who is to use it.
Although but one specific embodiment of this invention is herein shown and described, it is to be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of the invention as defined by the following claims.
Iclaim:
l. A safety seat comprising a horizontally elongated spreader, a pair of endless sling loops, each having a portion of its peripheral length extending along and attached at spaced points to said spreader, a belt within and attached to one of said loops, a seat attached within the other said loop, and a suspension cord having a part attached to said spreader and embracing the adjacent parts of both loops of said pair.
2. A safety seat comprising a seat board, a belt, a horizontally elongated rigid spreader, an endless cord coiled to form a loop surrounding said belt and a loop embracing said seat board, and each said loop having a part lying along and secured to said spreader at points adjacent both ends thereof, and a suspension cord having a looped part embracing adjacent portions of said spreader and of each said endless cord loops, said seat loop being of such length that said spreader will normally lie substantially in the plane of the belt under normal load.
3. A safety seat comprising a spreader, a pair of endless sling loops, each having a portion of its peripheral length attached at spaced points to said spreader, a belt within and attached to one of said loops, a seat attached within the other said loop, a suspension cord having a loop tied about said spreader and the adjacent parts of both loops of said pair, said spreader comprising a pair of opposed clamping bars grooved lengthwise in their adjacent faces to receive portions of said loops and pressed together to embrace and clamp said sling loops against relative slipping.
4. A safety seat comprising a spreader, a pair of sling loops, each having a portion of its peripheral length disposed along said spreader, a belt within and attached to one of said loops, a seat attached within the other said loop, said spreader comprising a pair of opposed clamping bars grooved lengthwise in their adjacent faces to receive portions of said loops and pressed together to embrace and clamp said sling loops against relative slipping, and a suspension cord having a part attached to said spreader and embracing parts of both said sling loops.
JOHN A. HOYT.
US336722A 1940-05-23 1940-05-23 Safety seat Expired - Lifetime US2254179A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433859A (en) * 1946-03-07 1948-01-06 Mccormick J Wesley Boatswain's chair
US2879830A (en) * 1957-12-03 1959-03-31 John M Johnson Pole climbing safety device and seat
US3448826A (en) * 1967-01-23 1969-06-10 Irving Ind Inc Industrial safety belt and harness
US4347914A (en) * 1981-07-27 1982-09-07 Robert Sims Portable tree sling or portable tree stand or portable tree hunting sling, or alternatives thereof
US4546851A (en) * 1982-11-03 1985-10-15 Brennan Daniel F Tree climbing apparatus
WO1986002278A1 (en) * 1984-10-10 1986-04-24 Fredrik Grufman Improvement in safety belts and the like
EP0199308A1 (en) * 1985-04-25 1986-10-29 Aquata Wassersport- und Meerestechnik GmbH Harness for sailing devices
US4687074A (en) * 1985-10-21 1987-08-18 Green James W Tree harness
US4688657A (en) * 1983-12-20 1987-08-25 Erickson Leonard R Portable elevating device
WO1992003190A1 (en) * 1990-08-17 1992-03-05 Michael Bell Harness and seat board repelling system
US5180030A (en) * 1992-03-05 1993-01-19 Smaby Paul W Tree or vertical support stand
US6035966A (en) * 1998-09-29 2000-03-14 K D L Outdoor Products, Inc. Harness tree seat with ascender
US6223854B1 (en) 1999-06-08 2001-05-01 Jason Nolz Safety and support garment for use in tree stand
US20020117353A1 (en) * 2000-09-14 2002-08-29 Jones D. Keith Adjustable safety line
US20090314578A1 (en) * 2008-06-18 2009-12-24 Zedel Roping harness with improved seat
WO2015126943A1 (en) * 2014-02-19 2015-08-27 D B Industries, Llc Utility belt
GB2541905A (en) * 2015-09-02 2017-03-08 Treeemagineers Ltd Harnesses
US20180154196A1 (en) * 2016-12-06 2018-06-07 Treemagineers Ltd. Harnesses
US20180345052A1 (en) * 2016-09-15 2018-12-06 Zedel Harness equipped with ergonomic connection points
USD851334S1 (en) * 2017-12-15 2019-06-11 Sherry Green Mullins Suspension relief seat
US20210023400A1 (en) * 2019-07-22 2021-01-28 Ramil Ravilyevich Musakaev Seat for safety harness
US20220249886A1 (en) * 2021-02-09 2022-08-11 Latitude Outdoors, LLC Tree saddle

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433859A (en) * 1946-03-07 1948-01-06 Mccormick J Wesley Boatswain's chair
US2879830A (en) * 1957-12-03 1959-03-31 John M Johnson Pole climbing safety device and seat
US3448826A (en) * 1967-01-23 1969-06-10 Irving Ind Inc Industrial safety belt and harness
US4347914A (en) * 1981-07-27 1982-09-07 Robert Sims Portable tree sling or portable tree stand or portable tree hunting sling, or alternatives thereof
US4546851A (en) * 1982-11-03 1985-10-15 Brennan Daniel F Tree climbing apparatus
US4688657A (en) * 1983-12-20 1987-08-25 Erickson Leonard R Portable elevating device
US4714134A (en) * 1984-10-10 1987-12-22 Grufman Fredrik A Safety belts and the like
WO1986002278A1 (en) * 1984-10-10 1986-04-24 Fredrik Grufman Improvement in safety belts and the like
EP0199308A1 (en) * 1985-04-25 1986-10-29 Aquata Wassersport- und Meerestechnik GmbH Harness for sailing devices
US4687074A (en) * 1985-10-21 1987-08-18 Green James W Tree harness
WO1992003190A1 (en) * 1990-08-17 1992-03-05 Michael Bell Harness and seat board repelling system
US5131490A (en) * 1990-08-17 1992-07-21 Michael Bell Harness and seat board repelling system
US5180030A (en) * 1992-03-05 1993-01-19 Smaby Paul W Tree or vertical support stand
US6035966A (en) * 1998-09-29 2000-03-14 K D L Outdoor Products, Inc. Harness tree seat with ascender
US6223854B1 (en) 1999-06-08 2001-05-01 Jason Nolz Safety and support garment for use in tree stand
US20050092545A1 (en) * 2000-09-14 2005-05-05 Jones D. K. Adjustable safety line
US20020117353A1 (en) * 2000-09-14 2002-08-29 Jones D. Keith Adjustable safety line
US20090314578A1 (en) * 2008-06-18 2009-12-24 Zedel Roping harness with improved seat
US8220589B2 (en) * 2008-06-18 2012-07-17 Zedel Roping harness with improved seat
WO2015126943A1 (en) * 2014-02-19 2015-08-27 D B Industries, Llc Utility belt
US10016633B2 (en) 2014-02-19 2018-07-10 D B Industries, Llc Utility belt
GB2541905A (en) * 2015-09-02 2017-03-08 Treeemagineers Ltd Harnesses
EP3138608A1 (en) * 2015-09-02 2017-03-08 Treemagineers Ltd Harnesses
GB2541905B (en) * 2015-09-02 2018-05-16 Treeemagineers Ltd Harnesses
US20180345052A1 (en) * 2016-09-15 2018-12-06 Zedel Harness equipped with ergonomic connection points
US20180154196A1 (en) * 2016-12-06 2018-06-07 Treemagineers Ltd. Harnesses
US11534633B2 (en) * 2016-12-06 2022-12-27 Treemagineers Ltd. Harnesses
USD851334S1 (en) * 2017-12-15 2019-06-11 Sherry Green Mullins Suspension relief seat
US20210023400A1 (en) * 2019-07-22 2021-01-28 Ramil Ravilyevich Musakaev Seat for safety harness
US20220249886A1 (en) * 2021-02-09 2022-08-11 Latitude Outdoors, LLC Tree saddle
US11771931B2 (en) * 2021-02-09 2023-10-03 Latitude Outdoors, LLC Tree saddle

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