US2978244A - Toys - Google Patents

Description

April 4, 1961 Filed Feb. 2'7, 1957 D. G. REMPEL ET AL TOYS 4 Sheets-Sheet 1 INVENTORS CH G. REM PEL A. PFEIFENROTH BY 7 W M W ATTO RN EYS April 1961 D. G. REMPEL ETAL 2,978,244

TOYS

Filed Feb. 27, 1957 4 Sheets-Sheet 2 INVENTORS DIE CH R PEL K A. E NROTH W M M M 7% ATTORNEYS April 4, 1961 D. G. REMPEL ETAL TOYS 4 Sheets-Sheet 3 Filed Feb. 27, 1957 INVENTORS DIETRICH G. REMPEL Fg rm A. PFEIFENROTH ama 3 ATTO RN EY S April 1961 D. G. REMPEL ETAL 2,978,244

TOYS

4 Sheets-Sheet 4 Filed Feb. 27, 1957 H um MM m M s N s REE VI O F E m m E .F HP O N A mK A mm DFY M United States Pate t TOYS Dietrich G. Rempel, Akron, and'Frank A. Pfeifenroth,

Norton Township, Ohio, assignors to Rempel Manufacturing, Inc., Akron, Ohio, a corporation of Ohio Filed Feb. 27, 1957, Ser. No. 642,822 2 Claims. (Cl. 272-52) This invention relates to improvements in hollow toys made of plastic materials having supporting members located therein and extending outwardly therefrom when the hollow toy is made.

More particularly, the invention relates to hollow rubber toys, such as a pony made from rubber latex by a compound rotation process in water-absorbing molds having a saddle member located in the mold and away from the mold walls during the rotary casting process and with one or more saddle supporting membersextending through the mold whereby, when the pony orother toy is formed by the rotary casting process and subsequent curing of the rubber, the pony will have the'supporting saddle inside the pony with its supporting member or members extending outside the pony for supporting the same.

When a toy of plastic material, such as a hollow rubber toy, or a toy of other plastic material, is made of relatively large size, such as a pony of a size which can be mounted by a child sitting on the pony, the hollowrubber or other plastic toy itself is not of suflicient strength to support a child. The rubber or other plastic pony may thus have a body size of around 32" and an overall size of around 44" and may have a wall thickness of the rotary cast pony of only around /8 of an inch.

The present invention provides an improved method for making such a toy and providing it with an internal support such as a saddle or seat and with one or'more supporting elements for supporting the saddle or seat so that when a child is seated on the pony there. will be adequate support for-the child.

The invent-ion also includes an improved process for making a toy in which not only a saddle but also a neck bar or neck piece is contained inside the mold and away from the mold walls during the rotary molding of casting operation, with a support or supports therefor extending outside the mold so that when the pony is molded and the molding composition cured, the saddle will support the pony atthe saddle portion and the neck piece can have handle bars secured thereto outside the neck of the pony so that a child sitting on the saddle and taking hold of the handle bars will have a rigid frame connection between the saddle and handle bars.

The improved toys of the present invention with internal supporting members can advantageously be made by a rotary casting process in which vuloanizable rubber latex in sufficient amount to form the toy is placed in a porous mold, such as a mold made of plaster of Paris, and the toy formed by compound rotation of the mold about different axes located e.g. at rightangles to each other according to the rotary casting process described, for example, in the Rempel US. Patents Nos. 2,469,892, 2,603,836 and 2,629,130.

In making the large toys such as the pony, the supporting member is located in the mold away from the sides of the mold and issupported and held by one,or more supporting members extending through the mold during the-rotary casting process, with the result that the toy is formed in the mold without any contact of the,

saddle or other support with the molded toy. The mold is formed at the saddle portion of a shape conforming to the shape of the saddle support located in the mold so that when the toy is formed and the plastic composition cured, the saddle support can be located at the saddle portion of the toy to support the same.

Special molds are required for making the toy with the supporting structure located therein and held away from the walls of the mold during the rotary molding operation. One mold section is provided with one or more tubular'me mbers extending inside the mold and also outside through which the saddle supporting member or members extend and with means for holding the saddle member away from the mold walls during the rotary I casting process.

In some cases the mold can be made of two mold members, but witha toy such as a pony it is advantageously made of two side members andan intermediate member located between the legs of the pony and having the tubular member or members extending through the intermediate or bottom mold portion so that, at the end of the rotary casting operation and after further drying, the side members of the mold can be removed and the intermediate or bottom portion can be used to support the molded toy during a further drying or partial curing treatment until the toy has been dried or cured sufficiently to permit it to be removed from the intermediate supporting section of the mold. Thereafter the toy can be supported on a suitable supporting frame for the further drying and curing, after which the saddle support can be raised to the corresponding saddle portion of the toy and the neck piece when used raised to its final position in the neck so that laterally extending handles can be secured to the neck member.

In general, the toys which are made by the present process are toys of relatively large size and of the type where a portion, such as a saddle, is to be provided so that a child can ride the toy. In general, the toys are toys representing animals or large birds which a child can ride, including not only ponies but other animals, such as girafies, zebras, donkeys, elephants, lions, tigers, etc., as well as large birds, such as an ostrich, or other hollow toys, where a portion which can be referred to as the rotary casting process and where the supporting portion is located in the mold during the rotary casting so that the toy will be supported thereby, and in turn the process away from the walls of the mold, and with its support extending outside the mold so that, when the toy is molded, the saddle or other supporting portion can beraised into contact with the saddle portion of the toy saddle and toy will be supported by the supporting member or members which extend outwardly through the bottom portion of the toy.

The supporting member or members for the saddle or other toy support are advantageously one or more downwardly extending members such as a rod or tube which is adapted to be attached to or supported by different supporting structures when the toy is finished. And when a neck piece as well as a saddle are located inside the toy with hand bars secured to the neck piece, a child sitting on the saddle with his hands on the hand bars will have a rigid supporting frame between the hand bars and the saddle. I

A toy such as a pony produced in accordance with the present invention is advantageously supported by a spring supporting frame located below the pony and with frame members providing afoot support for the rider, as shown for example in the companion Rempel application Serial No. 642,861 now Patent No. 2,935,317.

The pony or other toy with its depending supporting rods or tubes can be used for many purposes and with many different kinds of supports. The ponyor' other toy can thus be supported on a merry-go-round or on a bicycle or on a rocking support, etc. A rubber toy, such as a pony supported'in the manner described, with a supporting saddle and neck piece will be otherwise unsupported. And a rubber pony, or other plastic toy, having a wall thickness of around /s" will be flexible and yieldable at other portions while the rider sitting in the saddle and with hands on the handles secured to the neck piece will have these parts rigidly connected together. v

A rubber toy, such as a pony, can advantageously have a bridle on the head of the pony with reins which the rider can use, and the neck of the pony is sufiiciently flexible so that by pulling on the reins the neck will bend and will return to its original position when the pulling is discontinued.

The invention will be further described in connection with the accompanying drawings illustrating one embodiment of the invention and the forming of a hollow lifelike pony of rubber by the use of vulcanizable latex in porous molds, such as plaster of Paris molds, by the use of the rotary casting process such as described in the patents above referred to.

In the accompanying drawings:

Fig. 1 shows one of two opposing side molds used in molding the pony by the rotary molding process, this view being in perspective;

Fig. 2 shows the intermediate lower member of the mold which is located between the two side mold members, and with parts broken away, this view being also in perspective;

Fig. 3 is an enlarged view of a portion of the mold section of Fig. 2, with the saddle supporting member also shown;

Fig. 4 shows the mold section of Fig. 2 in perspective and with the saddle and neck bar supported therein;

Fig. 5 shows the side member of Fig. l and the intermediate mold member of Fig. 4 with the location of the saddle and neck member during the rotary casting process;

Fig. 6 shows the molded pony with the side mold members removed, and supported by the lower intermediate mold member;

Fig. 7 illustrates the supporting of the pony and intermediate mold member during the further drying operation, the showing being in perspective;

Fig. 8 shows how the pony is supported during the curing or vulcanizing treatment; and

Fig. 9 shows the completed pony, with parts broken away to show the location of the supporting saddle and neck bar. 7

The molds used in molding the pony by the rotary casting process include two side members, one of which is shown in Fig. l, and an intermediate lower mold member, shown in Figs. 2-4. The wall sections of the molds are of water-absorbent material, such as plaster of Paris. The side mold member 1 shown in Fig. 1 has edges 2 which, between the points indicated at 3 and 4, come in contact with corresponding members of the opposite side mold member. The lower portions of the edges of the side member, indicated at 5 and located between thepoints 3 and 4, match with the edges of the lower mold member illustrated in Fig. 2.

When the side member of Fig. l, the lower intermediate member of Fig. 2, and the opposite side member corresponding to that of Fig. 1, are united together, they form the complete mold in which the pony is molded by the rotary castingprocess. I

In Fig. l projecting portions are indicated at 6-which form a recess and opening through which the handle bars are inserted, as hereinafter described. The side mold members have recesses indicated at 7, for forming 4 corresponding recesses in the molded pony for receiving the back of the supporting saddle as hereinafter described.

The lower intermediate mold section 8 illustrated in Figs. 2 to 4 has edges 9 which match with the two side mold members, one of which is illustrated in Fig. 1. In Fig. 2 a portion of the mold member is broken away to show the tubular member 11, which is molded therein when the lower mold member is formed. The mold member is formed e.g. of plaster of Paris, as indicated at 10 in Figs. 2 and 3. This tubular member 11 serves for receiving and supporting the tube 12 which extends therethrough and to which the saddle 14 is secured and which has an extension forming a neck bar terminating in the flattened portion 13 having an opening therein to which the handle bars are secured, as hereafter described.

Fig. 5 shows the lower intermediate mold member and one side member with the location of the saddle and neck bar in the mold, and with a clamp 16 of U-shape having a clamping bolt 17 for holding the members 11 and 12 from relative notation during the rotary casting process. The arrangement of the tubular member 11 in the lower mold section, and of the saddle supporting bar 12 shown in Figs. 4 and 5, is such that the upper end of the member 11 supports the member 12 at a proper distance away from both the upper and lower portions of the mold. And the clamp 16 prevents the member 12 from rotation during the rotary casting process.

When the side mold section illustrated in Fig. 5 is placed in a horizontal position and the intermediate mold member is placed thereon as illustrated in Fig. 5, the latex in proper amounttor forming the pony is charged into the mold, the opposite side member is then added and the mold members are clamped together and are ready for the rotary casting process.

The rotary casting process is carried out by supporting the molds in apparatus which causes rotation of the molds on axes at right angles to each other, as described in the patent above referred to. This compound rotation of the molds is continued until the water in the latex has been absorbed by the porous mold to an extent sufficient to form the molded article on the walls of the mold. The compound rotation insures that all parts of the mold have the latex distributed thereover and the gradual absorption of the water in the porous mold results in the forming of a molded pony with uniform or approximately uniform wall thickness. The amount of latex used is such that the wall thickness of the molded and cured pony is e.g. about one-eighth of an inch, although this wall thickness can be varied somewhat.

The supporting of the saddle and neck bar in the mold away from the sides of the mold as illustrated in Fig. 5 enables the pony to be molded in its final form without contact with the saddle and neck bar.

After the pony has been molded in the rotary casting process, the mold is removed, the top side member is lifted 06, and the intermediate mold member and molded pony are removed from the bottom side mold member so that the intermediate member supports the molded pony, as illustrated in Fig. 6, which has parts broken away at 19 to show the thickness of the rubber layer at 20.

In a molded article of the size of a pony, the molded walls at this stage do not have sufficient strength to support the pony without further drying. To accomplish this further drying, the pony is kept supported by the intermediate mold member, as illustrated in Fig. 6, and is subjected to a further drying of the molded pony by supporting it in suitable supports, as illustrated in Fig. 7, during this further drying.

Fig. 7 shows the pony supported by the lower mold section, with the rod support 21 for supporting the neck and head of the pony, and with rods 22 and 23 for supporting the mold member. The clamp shown in Figs. 5

and 6 is removed and the lower end of the supporting member 12 is supported by a bar 24.

is resilient and yieldable when pressure is applied except After further drying, the pony is then removed from the lower mold member and supported on an aluminum supporting frame,'as illustrated in Fig. 8, where three supporting members are shown, two on one side, 25 and 26, and one on the opposite side, 27. These aluminum supports are secured at their upperends to the bar 28 and at their lower ends to supporting bars, one of which is shown for the members 25 and 26 at 29. A similar bar (not shown) is located on the back side to support the lower end of the member 27. These aluminum supports have openings 30 to permit the supporting tubes 12 to pass therethrough, and supports 31 and 32 are provided for supporting the lower ends of these'tubes.

The aluminum supports for supporting the pony shown in Fig. 8 have a contour which gives adequate support to the pony when it is subjected to the final drying and curing treatment. The further drying of the molded pony which takes place while supported on' the bottom mold member, as illustrated in Fig. 7, may be,.for example, one-half hour at 150 F. The further drying of the molded pony when supported by the aluminum supports as illustrated in Fig.8 may be e.g. for a further period of'one-half hour at 150 F., to complete the drying. After the drying is completed, the pony is placed in the curing oven, e.g. for a period of 45 minutes at 250 F., to cure the rubber latex and form the vulcanized rubber which forms the walls of the final pony. When the rotary casting process is completed and the side wall members are removed, they can be used again in further carrying out of the molding process, and the ther drying and curingoperations can also be carried out in a continuous manner and with a number of ponies molded in the manner above described.

The 'final molded ponyis illustrated in Fig. 9, with portions at the top of the pony broken away at 33 to show the wall thickness 34 and to show the location of the supporting saddle and neck bar in their final position. It will be seen that the recess 7a molded in the pony to form the back of the saddle portion has theback of the saddle 15 located therein and that the contour of the 1 saddle portion of the pony conforms to the shape of the saddle 14. .The'neck bar 12 extends up into and supports where it is supported by the saddle and by the neck piece. Thus, the flexible nature of the neck and head of the pony is such that when a bridle is applied, as shown in- Fig. 9, and a child pulls on the reins of the bridle, the head will bend so long as the pull is applied but will return to its normal position when the reins are released. A child sitting on the saddle is rigidly supported but the sides of the pony are yieldable.

While the drawings illustrate the process in connection with the production of a pony, the process is also applicable to the production of other hollow toys and particularly of toys which have a supporting saddle therein, or a supporting saddle and neck piece, and where the walls of the toy are of relatively thinplastic material and flexible and yieldable except Where supported by the rigid supports.

The molding of the toy with the supporting framework located therein and held away from the molds during the rotary casting process enables the supports to be properly located in the molded toy with only a single supporting member extending downwardly for supporting the toy.- Toys can thus be made of rubber or of .ly extending rod or tube for supporting the saddle and neck piece during the rotary casting process, two or more downwardly extending members can be used, e.g. an inverted U-shaped tube, to which the saddle and neck piece are secured.

We claim: v

1. A seamless hollow plastic toy of resilient plastic material of a size which can be mounted by a child sitting on the toy and with thinwalls of insuflicient strength to support a child thereon, said toy having a saddle portion,

a supporting saddle member within the seamless hollow toy for supporting said saddle. portion and a child seated thereon, and supporting means for said saddle member extending through the walls of said seamless toy for supthe neck and has handle bars 35 secured to the upper 1 end of the neck bar 12 by means of the opening 13 showninFig.4.

Where'the supporting member 12 passes through the lower portion or belly of the pony, the lower wall of the pony is held in proper position with reference to the sup porting member, as illustrated, forjexample, in Fig. 9,

where a clamping member orgrommet 38, e.g. of rubber,

is placed on the supporting bar 12 and also serves to ing.

extends down below thepony and is adapted to be seporting the saddle member. Y

2. A seamless hollow plastic toy of resilient plastic material of a size which can be mounted by a child sit ting on the toy and with thin walls of insuflicient strength to support a child thereon, said toy having a saddle portion and a neck portion, a supporting saddle member with- I in the seamless hollow toy for supporting said saddle portion and a child seated thereon, a neck member within the seamless hollow toy extending into the neck portion of the toy and having hand hold members secured thereto,

( and supporting means for said saddle member and said clamp the edges of the wall of the pony around its openi cured to supporting frames or members of various kinds and that it constitutes the entire'sup-port for the pony. It Will alsobe seen that the supporting bar is rigidly secured to the saddle and to the handle bars so that when a child is seated in the saddle of the pony and grasps the handle bars, these members are rigidly supported with relation to eachother. 6 l

The pony with a wall'thickness of around Vs has suflicientstifiness to maintain its normal form and yet it neck member extending through the walls of said seamless toy for supporting the saddle and neck members. so

References Cited in the file of this patent UNITED STATES PATENTS 830,762 Bellian Sept. 11, 1906 2,437,015 Baltz Mar. 2, 1948 2,477,899 Rempel Aug. 2, 1949 2,569,869 Rempel Oct. 2, 1951 2,722,418 Small Nov. 1, 1955 2,728,947 Kallus Jan. 3, 1956 2,730,765 Crafton et al. Jan. 17, 2,743,104 Dodson Apr. 24, 1956 2,769,202 Thompson Nov. 6, 1956 2,801,104 Yetter July 30, 1957 Thoeming Sept. 17,

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