초록 ▼

A connecting structure for a baby carriage disposed between a pair of push rods (1) and a push rod-connecting member (7) has a pair of brackets (16) extending inwardly from the push rods (1), a pair of turning shafts (17) provided on the brackets (16), a pair of sockets (18) supported by the turning

A connecting structure for a baby carriage disposed between a pair of push rods (1) and a push rod-connecting member (7) has a pair of brackets (16) extending inwardly from the push rods (1), a pair of turning shafts (17) provided on the brackets (16), a pair of sockets (18) supported by the turning shafts (17) for a folding movement of the sockets relative to the brackets (16). Each socket (18) receives one end of the push rod-connecting member (7) so that the member (7) can be rotated, around its longitudinal axis. A pair of engaging sections (19) is fixed on the push rods (1) at positions opposed to the lateral surfaces of the ends of the push rod-connecting member (7). A pair of lock control sections (20) is secured to the ends of the push rod-connecting member (7) for cooperation with the respective engaging section. For this purpose each locking section has an abutting portion (22) of relatively large radius and a clearing portion (23) of relatively small radius. By rotating the push rod-connecting member (7) around its longitudinal axis, the locked and unlocked states can be selceted, whereby in the locked state the abutting portion (22) is locked against the respective engaging section, while in the unlocked state the clearing portion (22) clears the respective engaging section for permitting folding the push rod-connecting member.

대표청구항 ▼

1. A connecting structure for a baby carriage disposed between two push rods (1) for maintaining said push rods at a predetermined spacing when the baby carriage is opened and for narrowing said spacing when the baby carriage is closed, comprising a push rod-connecting member (7) connected between s

1. A connecting structure for a baby carriage disposed between two push rods (1) for maintaining said push rods at a predetermined spacing when the baby carriage is opened and for narrowing said spacing when the baby carriage is closed, comprising a push rod-connecting member (7) connected between said push rods (1), said push rod-connecting member being foldable at least in one place in its central portion whereby a folding and unfolding action changes said spacing between said push rods (1), a pair of brackets (16) extending inwardly from said push rods (1), a pair of turning shafts (17) provided on said brackets (16), a pair of sockets (18) held by said turning shafts (17) for tilting said sockets relative to said brackets (16), said push rod-connecting member (7) having ends received in said sockets for permitting a rotating movement of said push rod-connecting member around the longitudinal axis of said push rod-connecting member (7), a pair of engaging sections (19) rigidly secured to said push rods (1) at positions opposed to the lateral surfaces of the ends of said push rod-connecting member (7), and a pair of lock control sections (20) secured to the ends of said push rod-connecting member (7) for rotation with said push rod-connecting member (7), each of said lock control sections having an abutting portion (22) of relatively large radius and a clearing portion (23) of relatively small radius, said turning shafts (17) being so spaced from the respective one of said engaging sections (19), that in one rotated position of said push rod-connecting member (7) said abutting portions (22) are brought to positions opposed to said engaging sections (19) for locking said push rod-connecting member (7) against folding, and so that in another rotated position of said push rod-connecting member said clearing portions (23) are brought to positions opposed to said engaging sections (19), whereby said clearing portions (23) clear said engaging sections for folding said push rod-connecting member (7) around the axes of said turning shafts (17). 2. The connecting structure as set forth in claim 1, wherein said push rod-connecting member (7) is foldable in but one direction. 3. The connecting structure as set forth in claim 1, wherein said bracket (16) has a U-shaped cross-section, whereby said bracket serves as a cover for the respective one of said sockets (18), said U-shaped cross-section having a closed bottom opposite an open side, said closed bottom limiting the folding of said push rod-connecting member (7) to but one direction toward said open side. 4. The connecting structure as set forth in claim 1, including turning range limiting means (25, 26, 27), whereby the turning of said push rod-connecting member (7) received in said sockets (18) around its longitudinal axis is limited to a predetermined angular range. 5. The connecting structure as set forth in claim 4, wherein said turning range limiting means (25, 26, 27) comprises a pair of rising walls (25, 26) formed in the boundary between said abutting portion (22) and clearing portion (23) of said lock control section (20), and a projecting portion (27) formed on said socket (18) opposed to said clearing portions (23) and positioned between said rising walls (25, 26). 6. The connecting structure as set forth in claim 1, wherein said engaging sections (19) are integral with said sockets (18). 7. The connecting structure as set forth in claim 1, wherein in order to make said push rod-connecting member (7) foldable, said push rod-connecting member (7) is divided into at least two portions (11, 12) along its length, said structure further comprising pin means (13) for foldably interconnecting said portions (11, 12) so that said portions (11, 12) are foldable around the axis of the respective one of said connecting pin means (13). 8. The connecting structure as set forth in claim 7, wherein in the state in which folding of said push rod-connecting member (7) around the axis of said turning shaft (17) is permitted, the axis of said connecting pin means (13) extends in parallel to the axis of said turning shaft (17). 9. The connecting structure as set forth in claim 8, wherein in the state in which folding of said push rod-connecting member (7) around the axis of said turning shaft (17) is inhibited, the axis of said connecting pin means (13) crosses at right angles a line parallel to the axis of said turning shaft (17).