US3147972A - Merry-go-round - Google Patents

Merry-go-round Download PDF

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Publication number
US3147972A
US3147972A US174199A US17419962A US3147972A US 3147972 A US3147972 A US 3147972A US 174199 A US174199 A US 174199A US 17419962 A US17419962 A US 17419962A US 3147972 A US3147972 A US 3147972A
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United States
Prior art keywords
drive housing
drive
merry
legs
round
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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
US174199A
Inventor
Borsuk Joseph
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PHILMONT PRESSED STEEL Inc
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PHILMONT PRESSED STEEL 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.)
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Publication date
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Priority to US174199A priority Critical patent/US3147972A/en
Application granted granted Critical
Publication of US3147972A publication Critical patent/US3147972A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G1/00—Roundabouts
    • A63G1/08—Roundabouts power-driven

Definitions

  • a purpose of the invention is to provide a very simple and inexpensive merry-go-round construction which will have maximum safety.
  • a further purpose is to mount a drive housing at the top of upwardly converging legs, to drive the merry-goround by a vertical shaft from the drive housing and to provide a frictionally engaged or otherwise free collar on the shaft.
  • a further purpose is to hinge the legs to the outside of the drive housing.
  • a further purpose is to mount the drive shaft on a bearing which is located approximately at the apex of the converging legs and to pivot the arm on the shaft immediately above the apex.
  • FIGURE 1 is a top plan view of the device of the invention with the legs broken away.
  • FIGURE 2 is a side elevation of the device of FIGURE 1 with one of the legs broken away.
  • FIGURE 3 is a central vertical section to enlarged scale showing the drive housing and associated parts.
  • FIGURE 4 is a plan section of FIGURE 3 on the line 4-4.
  • FIGURE 5 is a fragmentary enlarged vertical section through one of the leg pivots.
  • the present invention is concerned with the construction of a very inexpensive merry-go-round for use by a small child which will be of increased safety.
  • a drive housing 20 consists of a bottom housing portion 21 which is flanged at the top at 22, and which has a central bottom opening 23 provided with a bushing 24 for introduction of electric wiring 25.
  • the drive housing has a top portion 26 suitably of dome form which has a bottom flange 27 which is suitably bent over at the outside at 28.
  • the two flanges 27 and 22 have between them a diaphragm or membrane 3% which is provided with an opening 31 and has secured thereto as by spot welding a gear housing 32.
  • hinge housings 34 Secured to the bottom housing at suitably four equally circumferentially spaced points are hinge housings 34 which may conveniently be spot Welded to the bottom portion of the drive housing 21.
  • the hinge housing 34 comprises a wall 35 united to the outside of the drive housing 21, sides 36, and sloping limiting outer portion 37 which in outer position serves to engage and limit the leg while permitting it to fold as shown by the broken lines in FIGURE 5.
  • Each leg is suitably a tube 38 hinged on a pin 40 and having a rubber foot 41.
  • the gear housing 32 supports a speed reducer 42 by rivets 43 and the speed reducer supports an electric motor 44 by studs 45 secured to the speed reducer.
  • the motor has an output shaft 46 which connects through the gear reducer 42 with the input shaft 47 which extends through an opening 48 in the gear housing and carries a pinion 50 which meshes with a gear 51 at the lower end of the drive shaft 52.
  • the drive shaft 52 is journalled on an anti-friction bearing, suitably a journal and thrust ballbearing 53 secured to the top of the drive housing 2%).
  • the drive shaft has above the bearing a pin 54.
  • the drive shaft 52 extends directly above the drive housing 20 and receives a tubular collar 55 which rests on the upper end of the drive shaft 52 against the pin 54.
  • the collar 55 fits loosely around the drive shaft 52 and if any obstruction is encountered, slips with respect to the drive shaft 52 since the only driving impulse is the friction between the drive shaft 52 and the collar 55.
  • the collar 55 has secured thereto as by welding an arm 56 which is suitably bent to form the frame structure of a childs seat 57 of any well-known type, having a canvas or other suitable back 58 which is provided with a seat portion 69, and back portion 61 and leg engaging portions 62 at the front.
  • the seat may be of a conventional character used in automobile seats and hammocks for children from a few months to three or four years old.
  • the arm 56 is reinforced in its connection to the collar by a brace 63 which has an upper web portion 64 and a rearward gripping portion 65 which engages the back of the collar.
  • the merry-go-round is placed in position with the legs extended as shown in FIGURES l and 2.
  • the child is then placed in the seat and the motor is started by making the electrical connection.
  • the seat turns slowly. If the child encounters any obstruction such as furniture the seat remains and the collar 55 slips around the upper end of the shaft 52.
  • the amount of frictional grip depends to some extent on the downward movement due to the weight of the child and therefore the heavier the child the greater the frictional engagement of the collar 55 with the drive shaft.
  • the structure is very stable against tipping over.
  • the center of gravity of the child is within the area bounded by the legs or toward the center with respect to the leg as seen in FIGURE 2.
  • the seat and arm can be lifted off the top of the drive shaft and the legs can be folded and the entire device Will then fit into a closet.
  • a plurality of upwardly extendenemy/2 (3 ing converging legs, a drive housing interposed between the upper ends of the legs, hinge supports for the legs secured to the drive housing at positions distributed around the outside of the drive housing, a motor drive in the 4. 1y thereof, and a seat mounted on the outer end of the arm.
  • a merry-go-round of claim 1 in which the legs converge toward an apex, the apex being located approximatedrive housing having a vertical output shaft at the top of 5 ly at the location of said bearing.

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Description

Sept. 8, 1964 J. BORSUK 2 MERRY-GO-ROUND Filed Feb. 19, 1962 2 Sheets-Sheet 1 INVENT R Jame/ 50/151 ATTORNEYS J. BORSUK MERRY-GO-ROUND Sept. 8, 1964 Filed Feb. 19, 1962 2 Sheets-Sheet 2 I N V ENTOR fare 5022f? ATI'QRN EYS United States Patent 3,147,972 MERRY-GO-ROUND Joseph Borsnk, Philadelphia, Pa., assignor to Philmont Pressed Steel, Inc., Huntingdon Valley, Pa., a corporation of Pennsylvania Filed Feb. 19, 1962, Ser. No. 174,199 2 Claims. (Cl. 27239) The present invention relates to a merry-go-round of the type which can be used in or about the home for the entertainment of a small child.
A purpose of the invention is to provide a very simple and inexpensive merry-go-round construction which will have maximum safety.
A further purpose is to mount a drive housing at the top of upwardly converging legs, to drive the merry-goround by a vertical shaft from the drive housing and to provide a frictionally engaged or otherwise free collar on the shaft.
A further purpose is to hinge the legs to the outside of the drive housing.
A further purpose is to mount the drive shaft on a bearing which is located approximately at the apex of the converging legs and to pivot the arm on the shaft immediately above the apex.
Further purposes appear in the specification and in the claims.
In the drawings I have chosen to illustrate one only of the numerous embodiments in which the invention may appear, selecting the forms from the standpoints of satisfactory operation, clear illustration and effective demonstration of the principles involved.
FIGURE 1 is a top plan view of the device of the invention with the legs broken away.
FIGURE 2 is a side elevation of the device of FIGURE 1 with one of the legs broken away.
FIGURE 3 is a central vertical section to enlarged scale showing the drive housing and associated parts.
FIGURE 4 is a plan section of FIGURE 3 on the line 4-4.
FIGURE 5 is a fragmentary enlarged vertical section through one of the leg pivots.
Describing in illustration but not in limitation and referring to the drawings:
In the prior art, merry-go-rounds for children have been in most cases relatively complicated and expensive.
There has been also the possibility in some prior art merry-go-rounds that injury might occur to a child on the merry-go-round or to someone standing nearby.
The present invention is concerned with the construction of a very inexpensive merry-go-round for use by a small child which will be of increased safety.
In the device of the invention, a drive housing 20 consists of a bottom housing portion 21 which is flanged at the top at 22, and which has a central bottom opening 23 provided with a bushing 24 for introduction of electric wiring 25.
The drive housing has a top portion 26 suitably of dome form which has a bottom flange 27 which is suitably bent over at the outside at 28. The two flanges 27 and 22 have between them a diaphragm or membrane 3% which is provided with an opening 31 and has secured thereto as by spot welding a gear housing 32.
The three elements consisting of the bottom section 21, the top section 26 and the diaphragm or membrane 30 are united together as shown by bolts 33.
Secured to the bottom housing at suitably four equally circumferentially spaced points are hinge housings 34 which may conveniently be spot Welded to the bottom portion of the drive housing 21. The hinge housing 34 comprises a wall 35 united to the outside of the drive housing 21, sides 36, and sloping limiting outer portion 37 which in outer position serves to engage and limit the leg while permitting it to fold as shown by the broken lines in FIGURE 5.
Each leg is suitably a tube 38 hinged on a pin 40 and having a rubber foot 41.
Inside the drive housing 2d, the gear housing 32 supports a speed reducer 42 by rivets 43 and the speed reducer supports an electric motor 44 by studs 45 secured to the speed reducer.
The motor has an output shaft 46 which connects through the gear reducer 42 with the input shaft 47 which extends through an opening 48 in the gear housing and carries a pinion 50 which meshes with a gear 51 at the lower end of the drive shaft 52.
The drive shaft 52 is journalled on an anti-friction bearing, suitably a journal and thrust ballbearing 53 secured to the top of the drive housing 2%). The drive shaft has above the bearing a pin 54.
It will be evident from FIGURE 2 that the apex of the converging pyramid-like legs is approximately at or just below the bearing 53 and this provides great stability against tipping over of the drive housing 20.
The drive shaft 52 extends directly above the drive housing 20 and receives a tubular collar 55 which rests on the upper end of the drive shaft 52 against the pin 54.
The collar 55 fits loosely around the drive shaft 52 and if any obstruction is encountered, slips with respect to the drive shaft 52 since the only driving impulse is the friction between the drive shaft 52 and the collar 55.
The collar 55 has secured thereto as by welding an arm 56 which is suitably bent to form the frame structure of a childs seat 57 of any well-known type, having a canvas or other suitable back 58 which is provided with a seat portion 69, and back portion 61 and leg engaging portions 62 at the front. The seat may be of a conventional character used in automobile seats and hammocks for children from a few months to three or four years old.
The arm 56 is reinforced in its connection to the collar by a brace 63 which has an upper web portion 64 and a rearward gripping portion 65 which engages the back of the collar.
In operation, the merry-go-round is placed in position with the legs extended as shown in FIGURES l and 2.
The child is then placed in the seat and the motor is started by making the electrical connection. The seat turns slowly. If the child encounters any obstruction such as furniture the seat remains and the collar 55 slips around the upper end of the shaft 52.
The amount of frictional grip depends to some extent on the downward movement due to the weight of the child and therefore the heavier the child the greater the frictional engagement of the collar 55 with the drive shaft.
Furthermore, since the legs converge toward an apex located just about the bearing 53 and immediately below the collar 55, the structure is very stable against tipping over. In any case, the center of gravity of the child is within the area bounded by the legs or toward the center with respect to the leg as seen in FIGURE 2.
When the device is not to be used, the seat and arm can be lifted off the top of the drive shaft and the legs can be folded and the entire device Will then fit into a closet.
In view of my invention and disclosure variations and modifications to meet individual whim or particular need will doubtless become evident to others skilled in the art, to obtain all or part of the benefits of my invention without copying the structure shown, and I therefore claim all such insofar as they fall within the reasonable spirit and scope of my claims.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is:
1. In a merry-go-round, a plurality of upwardly extendenemy/2 (3 ing converging legs, a drive housing interposed between the upper ends of the legs, hinge supports for the legs secured to the drive housing at positions distributed around the outside of the drive housing, a motor drive in the 4. 1y thereof, and a seat mounted on the outer end of the arm.
2. A merry-go-round of claim 1, in which the legs converge toward an apex, the apex being located approximatedrive housing having a vertical output shaft at the top of 5 ly at the location of said bearing.
the drive housing, a bearing for the shaft in the drive housing, a collar surrounding the shaft above the drive housing and freely turnable with respect thereto except for frictiona1 drag, an arm secured to the collar and extending radial- Wunderlich Mar. 15, 1955 Taylor Oct. 2, 1956

Claims (1)

1. IN A MERRY-GO-ROUND, A PLURALITY OF UPWARDLY EXTENDING CONVERGING LEGS, A DRIVE HOUSING INTERPOSED BETWEEN THE UPPER ENDS OF THE LEGS, HINGE SUPPORTS FOR THE LEGS SECURED TO THE DRIVE HOUSING AT POSITIONS DISTRIBUTED AROUND THE OUTSIDE OF THE DRIVE HOUSING, A MOTOR DRIVE IN THE DRIVE HOUSING HAVING A VERTICAL OUTPUT SHAFT AT THE TOP OF THE DRIVE HOUSING, A BEARING FOR THE SHAFT IN THE DRIVE HOUS-
US174199A 1962-02-19 1962-02-19 Merry-go-round Expired - Lifetime US3147972A (en)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558129A (en) * 1969-01-31 1971-01-26 Charles L Curry Children{3 s merry-go-round
US20070111809A1 (en) * 2005-11-03 2007-05-17 Graco Children's Products Inc. Child motion device
US20070120404A1 (en) * 2005-11-03 2007-05-31 Graco Children's Products Inc. Child Motion Device
US20070123141A1 (en) * 2005-11-03 2007-05-31 Graco Children's Products Inc. Inflatable child activity center
US20070129156A1 (en) * 2005-11-03 2007-06-07 Graco Children's Products Inc. Child Motion Device
US20070205646A1 (en) * 2006-03-02 2007-09-06 Mattel, Inc. Repositionable Child Support Device
US20070262627A1 (en) * 2005-11-03 2007-11-15 Graco Children's Products Inc. Child Motion Device
US20070267904A1 (en) * 2005-11-03 2007-11-22 Graco Children's Products Inc. Child Motion Device
WO2008055252A2 (en) * 2006-10-31 2008-05-08 Graco Children's Products Inc. Motor drive and user interface control for a child motion device
US20080217974A1 (en) * 2005-11-03 2008-09-11 Graco Children's Products Inc. Child Motion Device
EP1974634A1 (en) * 2005-11-03 2008-10-01 Graco Children's Products LLC Seat support structure for a child motion device
US20090085389A1 (en) * 2007-09-17 2009-04-02 Nuna International B.V. Swing chair
US20100159428A1 (en) * 2008-12-18 2010-06-24 Graco Children's Products Inc. Children's Development Device With Multiple-Axis Motion
US20110118096A1 (en) * 2009-06-12 2011-05-19 Yasser Nadim Exercise Device and Method of Using Same
US8187111B2 (en) 2005-11-03 2012-05-29 Graco Children's Products Inc. Child motion device
USD750925S1 (en) 2014-11-26 2016-03-08 Mattel, Inc. Mount for an infant receiving device
USD750924S1 (en) 2014-11-26 2016-03-08 Mattel, Inc. Infant swing frame
USD770000S1 (en) * 2014-10-29 2016-10-25 Antonia Zamperla S.P.A. Merry go round seat
USD769999S1 (en) * 2014-10-29 2016-10-25 Antonio Zamperla S.P.A. Merry go round seat
USD865100S1 (en) * 2017-11-13 2019-10-29 Antonio Zamperla S.P.A. Merry-go-round seat

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704111A (en) * 1954-06-21 1955-03-15 Lowell H Wunderlich Baby jumper
US2765168A (en) * 1954-05-28 1956-10-02 John R Taylor Carousel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765168A (en) * 1954-05-28 1956-10-02 John R Taylor Carousel
US2704111A (en) * 1954-06-21 1955-03-15 Lowell H Wunderlich Baby jumper

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558129A (en) * 1969-01-31 1971-01-26 Charles L Curry Children{3 s merry-go-round
US7607734B2 (en) 2005-11-03 2009-10-27 Graco Children's Products Inc. Child motion device
US20070120404A1 (en) * 2005-11-03 2007-05-31 Graco Children's Products Inc. Child Motion Device
US20080238163A1 (en) * 2005-11-03 2008-10-02 Graco Children's Products Inc. Seat Support Structure for a Child Motion Device
US7883426B2 (en) 2005-11-03 2011-02-08 Graco Children's Products Inc. Child motion device
US20070129156A1 (en) * 2005-11-03 2007-06-07 Graco Children's Products Inc. Child Motion Device
EP1974634A1 (en) * 2005-11-03 2008-10-01 Graco Children's Products LLC Seat support structure for a child motion device
US20070262627A1 (en) * 2005-11-03 2007-11-15 Graco Children's Products Inc. Child Motion Device
US20070267904A1 (en) * 2005-11-03 2007-11-22 Graco Children's Products Inc. Child Motion Device
US8187111B2 (en) 2005-11-03 2012-05-29 Graco Children's Products Inc. Child motion device
US8029377B2 (en) 2005-11-03 2011-10-04 Graco Children's Products Inc. Child motion device
US20070111809A1 (en) * 2005-11-03 2007-05-17 Graco Children's Products Inc. Child motion device
US20080217974A1 (en) * 2005-11-03 2008-09-11 Graco Children's Products Inc. Child Motion Device
US7789762B2 (en) 2005-11-03 2010-09-07 Graco Children's Products Inc. Child motion device
WO2007056655A1 (en) * 2005-11-03 2007-05-18 Graco Children's Products Inc. Child motion device
US20070123141A1 (en) * 2005-11-03 2007-05-31 Graco Children's Products Inc. Inflatable child activity center
US20090170618A1 (en) * 2005-11-03 2009-07-02 Graco Children's Products Inc. Child Motion Device
US7563170B2 (en) 2005-11-03 2009-07-21 Graca Children's Products Inc. Child motion device
US7824273B2 (en) 2005-11-03 2010-11-02 Graco Children's Products Inc. Child motion device
US7614930B2 (en) 2005-11-03 2009-11-10 Graco Children's Products Inc. Inflatable child activity center
CN100591246C (en) * 2005-11-03 2010-02-24 哥瑞考儿童产品公司 Child motion device
US7717798B2 (en) 2005-11-03 2010-05-18 Graco Children's Products Inc. Child motion device
US7770971B2 (en) * 2005-11-03 2010-08-10 Graco Children's Products Inc. Seat support structure for a child motion device
US20100127539A1 (en) * 2005-11-03 2010-05-27 Graco Children's Products Inc. Seat Support Structure for a Child Motion Device
US7874927B2 (en) 2005-11-03 2011-01-25 Graco Children's Products Inc. Capacitive sensing in user interface and motion control for a child motion device
US7722118B2 (en) 2006-03-02 2010-05-25 Mattel, Inc. Repositionable child support device
US20070205646A1 (en) * 2006-03-02 2007-09-06 Mattel, Inc. Repositionable Child Support Device
WO2008055252A3 (en) * 2006-10-31 2008-07-17 Graco Childrens Prod Inc Motor drive and user interface control for a child motion device
CN101528087B (en) * 2006-10-31 2012-07-18 哥瑞考儿童产品公司 Motor drive and user interface control for a child motion device
US7884710B2 (en) 2006-10-31 2011-02-08 Graco Children's Product Inc. Audio modulation for a child motion device
US7918742B2 (en) 2006-10-31 2011-04-05 Graco Children's Products Inc. Motor drive feedback control for a child motion device
US20080165016A1 (en) * 2006-10-31 2008-07-10 Graco Children's Products Inc. Audio Modulation for a Child Motion Device
WO2008055252A2 (en) * 2006-10-31 2008-05-08 Graco Children's Products Inc. Motor drive and user interface control for a child motion device
CN101548836B (en) * 2007-03-26 2011-09-14 哥瑞考儿童产品公司 A seat support structure used in a children movement device
US20090085389A1 (en) * 2007-09-17 2009-04-02 Nuna International B.V. Swing chair
US8419132B2 (en) * 2007-09-17 2013-04-16 Nuna International B.V. Swing chair
US20100159428A1 (en) * 2008-12-18 2010-06-24 Graco Children's Products Inc. Children's Development Device With Multiple-Axis Motion
US20110118096A1 (en) * 2009-06-12 2011-05-19 Yasser Nadim Exercise Device and Method of Using Same
US8057362B2 (en) * 2009-06-12 2011-11-15 Yasser Nadim Exercise device and method of using same
USD770000S1 (en) * 2014-10-29 2016-10-25 Antonia Zamperla S.P.A. Merry go round seat
USD769999S1 (en) * 2014-10-29 2016-10-25 Antonio Zamperla S.P.A. Merry go round seat
USD750925S1 (en) 2014-11-26 2016-03-08 Mattel, Inc. Mount for an infant receiving device
USD750924S1 (en) 2014-11-26 2016-03-08 Mattel, Inc. Infant swing frame
USD865100S1 (en) * 2017-11-13 2019-10-29 Antonio Zamperla S.P.A. Merry-go-round seat

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