초록 ▼

A locking device for a stroller is provided. The stroller includes a pair of side frames and a base frame. The locking device comprises an articulated mechanism pivotally connected between the respective rear frames of the pair of side frames, a locking member slidably provided on the articulated me

A locking device for a stroller is provided. The stroller includes a pair of side frames and a base frame. The locking device comprises an articulated mechanism pivotally connected between the respective rear frames of the pair of side frames, a locking member slidably provided on the articulated mechanism for locking the articulated mechanism, and a pair of side braces pivotally connected to the locking member at one end thereof respectively and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof. The folding and unfolding of the stroller can be easily carried out by means of the locking device.

대표청구항 ▼

1. A locking device for a stroller, the stroller including a pair of side frames and a base frame, each of the side frames including a front upper frame, a front lower frame pivotally connected to the lower end of the front upper frame at the upper end thereof, a rear frame pivotally connected to th

1. A locking device for a stroller, the stroller including a pair of side frames and a base frame, each of the side frames including a front upper frame, a front lower frame pivotally connected to the lower end of the front upper frame at the upper end thereof, a rear frame pivotally connected to the front upper frame at the upper end thereof, and a side connecting frame pivotally connected between the front lower frame and the rear frame, the base frame being pivotally connected between the pair of side frames, the locking device comprising: an articulated mechanism pivotally connected between the respective rear frames of the pair of side frames;a locking member slidably provided on the articulated mechanism for locking the articulated mechanism; anda pair of side braces pivotally connected to the locking member at one end thereof respectively and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof,wherein the articulated mechanism includes a pair of upper braces, a pair of lower braces and a vertical brace, the pair of upper braces being pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, the pair of lower braces being substantially parallel to the pair of upper braces and pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, and the vertical brace being pivotally connected to the ends of the pair of upper braces at the upper end thereof and pivotally connected to the ends of the pair of lower braces at the lower end thereof,wherein the locking member is slidably provided on the vertical brace of the articulated mechanism, and has a latch integrally formed thereon that is abutted against an upper end of the vertical brace of the articulated mechanism, the latch including a latch body formed of a flexible and resilient material such that the latch is deformed against a restoring force of the latch body during a folding operation of the frames, andwherein the latch is operative to be removed from the upper end of the vertical brace of the articulated mechanism. 2. A locking device for a stroller according to claim 1, wherein the locking device further comprises a handle, and both ends of the handle-are fixed to the pair of upper braces respectively. 3. A locking device for a stroller according to claim 1, wherein the locking member has a longitudinal body with a tapered upper portion, the latch is located on the upper portion, and the locking device has a recess below the latch for pivotally connecting the pair of upper braces and the vertical brace. 4. A locking device for a stroller, the stroller including a pair of side frames and a base frame, each of the side frames including a front upper frame, a front lower frame pivotally connected to the lower end of the front upper frame at the upper end thereof, a rear frame pivotally connected to the front upper frame at the upper end thereof, and a side connecting frame pivotally connected between the front lower frame and the rear frame, the base frame being pivotally connected between the pair of side frames, the locking device comprising: an articulated mechanism pivotally connected between the respective rear frames of the pair of side frames;a locking member slidably provided on the articulated mechanism for locking the articulated mechanism; anda pair of side braces pivotally connected to the locking member at one end thereof respectively and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof,wherein the articulated mechanism includes a pair of upper braces, a pair of lower braces and a vertical brace, the pair of upper braces being pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, the pair of lower braces being substantially parallel to the pair of upper braces and pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, and the vertical brace being pivotally connected to the ends of the pair of upper braces at the upper end thereof and pivotally connected to the ends of the pair of lower braces at the lower end thereof,wherein the locking device further comprises an operating member having a protrusion,wherein the locking member is slidably provided on the vertical brace of the articulated mechanism, and has a latch integrally formed thereon that is abutted against the protrusion of the operating member of the articulated mechanism, the latch including a latch body formed of a flexible and resilient material such that the latch is deformed against a restoring force of the latch body during a folding operation of the frames, andwherein the latch is operative to be removed from the protrusion of the vertical brace of the articulated mechanism. 5. A locking device for a stroller according to claim 4, wherein the locking device further comprises a handle, and both ends of the handle-are pivotally connected to both sides of the operating member. 6. A locking device for a stroller according to claim 4, wherein the operating member has a recess that is integrally formed with a grip. 7. A locking device for a stroller, the stroller including a pair of side frames each including a rear frame, the locking device being located between the two rear frames, the locking device comprising: an articulated mechanism pivotally connected between the respective rear frames of the pair of side frames;a locking member slidably provided on the articulated mechanism, the locking member having a latch integrally formed thereon for blocking the articulated mechanism to prevent the articulated mechanism from moving relative to the locking member, the latch including a latch body formed of a flexible and resilient material such that the latch is deformed against a restoring force of the latch body during a folding operation of the frames,wherein the latch is operative to be removed from the articulated mechanism to move the locking device with respective to the articulated mechanism such that the pair of side frames are close to each other, andwherein the articulated mechanism includes a pair of upper braces, a pair of lower braces and a vertical brace, the pair of upper braces being pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, the pair of lower braces being substantially parallel to the pair of upper braces and pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, and the vertical brace being pivotally connected to the ends of the pair of upper braces at the upper end thereof and pivotally connected to the ends of the pair of lower braces at the lower end thereof, and the locking member is slidably provided on the vertical brace of the articulated mechanism. 8. A locking device for a stroller, the stroller including a pair of side frames each including a rear frame, the locking device being located between the two rear frames, the locking device comprising: an articulated mechanism pivotally connected between the respective rear frames of the pair of side frames;a locking member slidably provided on the articulated mechanism, the locking member having a latch integrally formed thereon for blocking the articulated mechanism to prevent the articulated mechanism from moving relative to the locking member, the latch including a latch body formed of a flexible and resilient material such that the latch is deformed against a restoring force of the latch body during a folding operation of the frames,wherein the locking member has a longitudinal body with a tapered upper portion, the latch is located on the upper portion, and the locking device has a recess below the latch for receiving a pivot portion of a pair of upper braces and a vertical brace, andwherein the latch is operated to be removed from the articulated mechanism to move the locking device with respective to the articulated mechanism such that the pair of side frames are close to each other. 9. A locking device for a stroller according to claim 8, wherein the articulated mechanism includes a pair of upper braces, a pair of lower braces and a vertical brace, the pair of upper braces being pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, the pair of lower braces being substantially parallel to the pair of upper braces and pivotally connected to each other at one end thereof and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof, and the vertical brace being pivotally connected to the ends of the pair of upper braces at the upper end thereof and pivotally connected to the ends of the pair of lower braces at the lower end thereof, and the locking member is slidably provided on the vertical brace of the articulated mechanism. 10. A locking device for a stroller, the stroller having a pair of side frames, the locking device being pivotally connected to the side frames and comprising: an articulated mechanism pivotally connected between the pair of side frames;a locking member slidably mounted on the articulated mechanism, the locking member having a latch integrally formed thereon which is selectively moved between a first position where the latch stops the articulated mechanism from moving and the pair of side frames are spaced apart from each other, and a second position where the articulated mechanism is freely moved relative to the locking member and the side frames are able to be close to each other,wherein the latch including a latch body formed of a flexible and resilient material such that the latch is deformed against a restoring force of the latch body during a folding operation of the frames,wherein the articulated mechanism includes a pair of braces pivotally connected to each other at one end thereof and pivotally connected to the respective one of the pair of side frames at the other end thereof, and a vertical brace pivotally connected to the ends of the pair of braces and having an upper end, the locking member is slidably provided on the vertical brace of the articulated mechanism and the latch is abutted against the upper end of the vertical brace when the latch is in the first position, andwherein the upper end of the vertical brace is mounted on an operating member, and the latch is abutted against a protrusion on a top end of the operating member. 11. A locking device for a stroller according to claim 10, wherein the locking member has a longitudinal body with a tapered upper portion, the latch is located on the upper portion, and the locking device has a recess below the latch to retain the ends of the pair of braces and the upper end of the vertical brace therein while the latch is in the first position.