Marh15,1949 L,GOTTFR,ED 2,464,226
COLLAPSIBJE HANDLE FOR PERAMBULATORS Filed March l5, 1946 i INVENToR.
naa/,sf @gf/fea Patented Mar. 15, 1949 UNITED STATES., PATENT OFFICE COLLAPSIBLE HANDLE FOR PERAMBULATORS 2 Claims. 1 The invention relates to baby carriages and in particular to collapsible carriages.
It is well known, that it is a particular problem to turn over the pushing handle when changing the carriage from the upright to the collapsed position and vice versa. In order to perform this change it is necessary to build the handle in several portions which are connected by screws. It is then necessary to remove the screws entirely every time a position change is made. Experience discloses that repeatedly this arrangement brings about loss of the screws.
It is, therefore, one object of the present invention to provide means for connecting the pushing handle to the carriage which allow changing of the respective upright and collapsed positions, without removing entirely the screw.
It is another object of the present invention to provide spring means for retaining the pushing handle in the respective upright and collapsed positions.
It is still an object of the present invention to provide means for particular blocking of the pushing handle in its upright position, in order to prevent by all means the undesired removal of the pushing handle from the upright position during pushing of the carriage and thereby prevent any danger involved in such a removal.
With these and other objects in View, which will become apparent, the present invention will be clearly understood from the following specifi- .cation and accompanying drawing, in which:
Figure 1 is an elevational view of a baby carriage with a mounting of the pushing handle in accordance with the present invention;
Fig. 2 is a plan View of the carriage shown in Fig. 1;
Fig. 3 is a plan View of the mounting construction for the pushing handle in enlarged scale for purpose of better demonstration;
Fig. 4 is a perspective view of the upwards extending end of the gear of the carriage, seen from the outside; and
Fig. 5 is a perspective view of the downwards extending end of the pushing handle, seen from the inside, which is directed to the carriage.
Referring now to the drawing, the baby carriage, as particularly shown in Figs. 1 and 2, comprises a carriage body I, having a hood 2, a running gear 3, which is connected by springs 4 with the axles 5, the ends of which carry the wheels 6. The gear 3 comprises two chassis members attached to each side of the body I.
A pushing handle I is secured to the rear end of the body I and at the same time to the rear end of each chassis member in the following manner: The gear 3 and the pushing handle 'I are preferably made of tubular material which is flattened at their end 'portions (Figs. 1, 3. 4' and 5), to be mounted to the body I. The flattened rear end portions 8 of each chassis member of the gear 3 and the flattened end portions 9 of the pushing handle I extend approximately in horizontal forward direction and cover each other (Fig. 1). The body I of the carriage is equipped withf two threaded bolts Ill on each side, which bolts I0 are first adapted to retain the flattened end portions 8 of each chassis member of the gear 3 in permanent position. This is achieved by inserting the bolts I0 into holes II (Fig. 3) of the side walls I2 of the carriage and the flattened end portions 8 of each chassis member of the running gear 3 are equipped with a threaded boring I3, which secure the end portions 8 of each chassis member tightly to the walls I2 of the body I upon inserting and screwing in the bolts IIJ. The latter are of somewhat greater length than the thickness of the end portions 8 for a purpose to be described later. At least one further hole I4 is provided near the end' of the end portions 8 of' each chassis member of the running gear 3, which holes I4 are adapted to receive a short stud I5 provided near the end of the attened end portion 9 of the pushing handle 'I. If more than one hole I4 is arranged on the end portions 8, the corresponding number of bolts I5 must be provided on the end portions 9. A hole I6 is provided in the flattened end portion 9 of the pushing handle 'I in a distance from the stud I5 which is equal to the distance between the holes I3 and I4 of the end portion 8 of each chassis member of the gear 3. The hole I6 is of larger diameter than that of the threaded boltv I0 and the latter is adapted to receive also the bolt I0, the end of which carrier preferably a wing nut I'I.
The pusher handle 1 comprises in usual manner a center handle portion and two side portions. In accordance with the present invention the side portions are designed to tend in outward direction, thereby providing spring action when pressed together. By this arrangement, when in proper position, that means when the threaded bolts I0 are inserted into the holes I6 of both side portions of the pusher handle I and the wing nuts I1 are tightened, the side portions of the pusher I and thereby their end portions 9 will be forced into position adjacent to the end portions 8 of each chassis member of the gear 3 against spring action exerted by the side portions of the pushing handle 1. When the wing nuts I1 are tightened, the studs I5 of the end portions 9 enter the holes I4 of the end portions 8 of each chassis member and thereby lock the pushing handle 1 in a predetermined position with the ends B of each chassis member thereby preventing turning of the pusher handle 1. However, if the pusher handle 1 is to be turned in order to collapse the carriage, the wing nuts I1 are slightly loosened, but not removed entirely from the threaded bolts I0. The loosening of the wing nuts I1 results in a moving of the side portions of the pusher handle 1 and thereby of its end portions S away from the end portions 8 of each chassis member of the gear 3 from the position shown in full lines in Fig. 3 to the position shown in point-dotted lines in the same figure, due to the spring action of the side portion of the pushing handle 1. By this movement the studs I5 leave the holes I4 of the end portions 8 and the pushing handle 1 can be turned noW freely around the threaded bolts I0 as pivot from the position shown in full lines in Fig. 1 to that shown in point-dotted lines in the same gure. In order to return and to retain the pushing handle 1 in the original position the latter is turned backwards and the two wing nuts I1 are tightened until the studs I5 enter again the holes I4 and the end portion 9 of the pusher 1 takes the position adjacent to the end portion 8 of each chassis member of the gear 3. Although the studs I5 and the holes I6 are preferred asv blocking means for the pusher 1, any equivalent suitable means can be used for the same purpose.
While I have disclosed the principles of my invention in connection with a single embodiment, it will be understood that this embodiment is given by way of example only and not as limit-l wards tending side portions, a threaded bolt mounted on each side of said body, each of said 4 chassis members having a first hole and a second hole, said first hole being positioned close to the end of each chassis member and said second hole at predetermined distance from said first hole, a stud close to the end of each said pushing handles and a third hole at each end of said e pushing handle at a distance from said stud equal to the said predetermined distance between said rst and 4second hole of each of said chassis members, a nut on said threaded bolt, said first hole of each said chassis members being adapted to receive said stud in the upright position of the pushing handle and to be removed therefrom upon unscrewing said nut due to the spring action of the side members of said pushing handle, and said second and third holes of each of said chassis members and of the ends of said pushing handle, respectively, being adapted to receive said threaded bolt, the latter receiving said nut which when tightened press the side portions of said pusher handle against their sidewards directed spring action towards the said chassis members and said body, and said threaded bolt serving as pivot for said pushing handle, thereby preventing a loose pivot for the pushing handle in upright and collapsed position, respectively.
2. A baby carriage, as set forth in claim 1, in which said second holes of each of said chassis members have inner thread.
LOUIS GOT I FRIED.
REFERENCES CITED The following references are of record in the le of this patent:
UNITED STATES PATENTS Number Name Date o 2,296,415 Baker et al Sept. 22, 1942 FOREIGN PATENTS Number Country Date 10,238 Great Britain Apr. 24, 1897 9,766 Great Britain Apr. 28, 1898 Great Britain Apr. 20, 1922