US 2765478 A
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Get. 9, 1956 A. v. PINTO 2,765,478
CRIB ROCKING DEVICE Filed June 28, 1954 INEN TOR. ///z% f/ /f/fa United States Patent CRIB ROCKING DEVICE Alex V. Pinto, Kalamazoo, Mich.
Application June 28, 1954, Serial No. 439,506
1 Claim. (Cl. -104) This invention relates to improvement in crib rocking device.
The principal objects of the invention are:
First, to provide a novel combination of an infants crib and an electrically drivenoscillating device for rocking or gently vibrating the crib at slow frequency.
Second, to provide a simple yieldable support and a driven vibrating device that can be easily connected to standard non-rocking cribs to rock the same.
Third, to provide a rocking device that need not be attached to a crib and is easily connected thereto or detached therefrom simply by tieing or untieing a knot in a connecting strand.
Fourth, to provide a rocking device that leaves the crib relatively solid and stable when the rocking device is not operating or is disconnected.
Other objects and advantages of the invention will be apparent from a consideration of the following description and claim. The drawings illustrate a highly practical form of the invention.
Fig. 1 is an end elevational view of an infants crib with the rocking device connected thereto. Portions of the crib are broken away in section.
Fig. 2 is an enlarged elevational view of the driving portion of the rocking device with the case partly broken away in section.
In the drawings, 1 represents an infants crib having legs 2. The legs have bores 3 in their lower ends to re ceive castor pins and these bores are utilized to receive pins 4 carried on the upper ends of coil springs 5. The bottom ends of the springs have dished plates or floor runners 6 thereon. The springs are relatively stiff or rigid so as to firmly support the weight of the crib and a small child therein. The crib is thus firm and stable when the rocking device is not in operation.
Resting freely on the floor under the crib is a driving mechanism enclosed in a case 7. The driving mechanism includes an electric motor 8 and attached speed reduction gearing 9 having an external crank wheel 10 and pin 11. The motor and gearing are mounted on and connected to a base plate 12 that is relatively heavy so that the driving device as a whole is heavy.
A link 13 is mounted on the crank pin 11 to oscillate therewith and a leather thong or strand 14 is connected to the link by being passed through a bore in the link and stapled thereto as at 15. The strand 14 passes upwardly 2,765,478 Patented Oct. 9, 1956 through an eye 16 in the case and is releasably tied to the frame 17 of the spring of the crib as at 18. The strand is taut when the link and pin 11 are raised so that rotation of the crank wheel 10 will intermittently apply the load or weight of the driving device to the frame of the crib. A light spring 19 is connected between the link 13 and a frame member 20 to keep the link upright and from becoming entangled.
Desirably, the strand 14 is tied toward one side of the crib so that the springs on that side will be compressed producing a rocking motion in the crib. The crank wheel rotates at any preselected speed, between and cycles per minute having been found to be effective. The link 13 is of leather or other non-metallic material for silence in operation.
Mounted on one side of the case is a timer switch 21 having a control knob 22. The timer switch is electrically connected between an electrical cable 23 connected to the motor and a feed cable 24 adapted to be plugged into a convenience outlet. Thus the device may be turned on to operate for a predetermined time and will shut itself off automatically.
A handle 25 pivoted to the top of the case is adapted to fold into a recess therein when not in use.
No attempt has been made to describe modifications and variations which may fall within the scope of the claim but various changes are possible Without departing from the spirit of the invention.
Having thus described the invention, what is claimed to be new and what is desired to be secured by Letters Patent is:
Apparatus for rocking a childs crib having supporting legs with castor pin bores in the bottom and coil springs having pins on their upper ends received in said bores comprising a motor and connected reduction gearing mounted on a weighted base and adapted to be positioned under said crib, a crank wheel and pin connected to said reduction gearing, a case enclosing said motor and gearing and wheel and having an opening in the top, a nonmetallic link connected to said pin, a tension strand connected to said link and extending through said opening and releasably tied to said crib, a light spring supported above said wheel and connected to said link, and a timing switch mounted on said case and electrically connected in series with said motor.
References Cited in the file of this patent UNITED STATES PATENTS 281,299 Roberts July 17, 1883 374,277 Smith Dec. 6, 1887 628,149 Sinclair July 4, 1899 669,980 Cutten Mar. 19, 1901 897,791 Seeber Sept. 1, 1908 1,420,134 Nisle June 20, 1922 1,489,515 Atkinson Apr. 8, 1924 1,505,117 Withun Aug. 19, 1924 1,643,399 Wentworth Sept. 27, 1927 FOREIGN PATENTS 317,077 Italy Apr. 23, 1934