Rear carrying board assembly of a stroller

ABSTRACT

A rear carrying board assembly of a stroller includes a body, two joint devices, two connecting devices, and two shock-absorbing devices. Thus, the rear carrying board assembly is mounted on the rear portion of the stroller for supporting the baby or for placing an article, thereby enhancing the versatility of the stroller.

INFORMATION

DETAILED DESCRIPTION OF THE INVENTION

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side plan view of a rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 2 is a perspective assembly view of the rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 3 is a partially plan assembly view of the rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 4 is an exploded perspective view of the body of the rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 5 is a bottom perspective view of the body of the rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 6 is an exploded perspective view of the joint device of the rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 7 is an exploded perspective view of the connecting device of the rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 8 is a plan cross-sectional assembly view of the connecting device of the rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 8A is a plan cross-sectional assembly view of the connecting device of the rear carrying board assembly of a stroller in accordance with another embodiment of the present invention;

FIG. 9 is an exploded perspective view of the shock-absorbing device of the rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention;

FIG. 10 is a side plan cross-sectional assembly view of the shock-absorbing device of the rear carrying board assembly of a stroller as shown in FIG. 9;

FIG. 11 is a side plan cross-sectional assembly view of the rear carrying board assembly of a stroller as shown in FIG. 4;

FIG. 11A is a schematic operational view of the rear carrying board assembly of a stroller as shown in FIG. 11;

FIG. 12 is a side plan cross-sectional assembly view of the rear carrying board assembly of a stroller as shown in FIG. 6;

FIG. 12A is a schematic operational view of the rear carrying board assembly of a stroller as shown in FIG. 12;

FIG. 13 is a side plan cross-sectional assembly view of the rear carrying board assembly of a stroller as shown in FIG. 7; and

FIG. 13A is a schematic operational view of the rear carrying board assembly of a stroller as shown in FIG. .

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIGS. 1-3, a rear carrying board assembly of a stroller in accordance with the preferred embodiment of the present invention comprises a body , two joint devices , two connecting devices , and two shock-absorbing devices . The rear carrying board assembly is mounted on the rear portion of the stroller for supporting the baby or for placing an article.

Referring to FIGS. 4 and 5, the body is a flat board having a top formed with an anti-skid portion and a bottom formed with a plurality of reinforcing ribs . The bottom of the body has a first side having two ends each formed with a chamber . The chamber is formed with a slide channel , a plurality of pivot ears each located at a first side of the slide channel and each formed with a through hole , and a through bore located at a second side of the slide channel . The slide channel has a side wall formed with a rectangular hole . The chamber has a side wall formed with a circular hole aligning with the through hole of each of the pivot ears .

The body includes two clamping blocks each pivotally mounted in the respective chamber and each having a first side formed with a plurality of pivot ears and a second side formed with a through hole , two pivot rods each extended through the circular hole of a respective chamber , each of the pivot ears of a respective clamping block and the through hole of each of the pivot ears of the respective chamber , two threaded rods each extended through the through bore of the respective chamber and the through hole of the respective clamping block , two rotation knobs each screwed on the respective threaded rod and each rested on the respective clamping block , and two elastic members each mounted on the respective threaded rod and each urged between the respective chamber and the respective clamping block .

The bottom of the body has a second side having two ends each formed with a socket formed with two opposite arcuate slots . The socket has a periphery provided with two pairs of protruding ears each formed with a through hole . The bottom of the body has a side wall formed with two circular holes aligning with the through hole of the respective protruding ears .

Referring to FIG. 6, each of the two joint devices is mounted on the body , and includes a shaft , a cover , a washer , two press blocks , and a straddle bar .

The shaft is extended through the rectangular hole and is slidably mounted in the slide channel of the respective chamber . The shaft has a distal end provided with a circular hollow hub which has a center provided with an inner threaded rod and a periphery formed with a plurality of engaging teeth .

The cover is mounted on the hub of the shaft , and has a center formed with a central hole for passage of a threaded rod which is extended through the washer and is screwed into the inner threaded rod , thereby securing the cover on the hub of the shaft . The cover has a periphery formed with two opposite windows and provided with a hollow receiving portion .

Each of the two press blocks is movably mounted in the respective window of the cover , and is provided with an arcuate block which has a first side formed with a locking tooth meshing with the engaging teeth of the hub of the shaft , and a second side having two ends each formed with a mounting hole for mounting an elastic member which is urged between the two press blocks .

The straddle bar has a first end inserted into the receiving portion of the cover and a second end formed with an action section .

Referring to FIG. 7, each of the two connecting devices is mounted on the straddle bar of the respective joint device , and includes a connecting block , a movable clamping plate , a mounting ring , and a slide .

The connecting block has a first portion formed with an arcuate fixed clamping plate which has a first end formed with an opening and a second end formed with an extension formed with a through hole . The opening has a top wall and a bottom wall each formed with a through hole . The connecting block has a mediate portion formed with a groove for insertion of the action section of the straddle bar of the respective joint device . The connecting block has a second portion formed with a receiving chamber which has two side walls each formed with a pivot hole and a top wall formed with a cutout . The receiving chamber communicates with the groove .

The movable clamping plate having an arcuate shape is pivotally mounted on the fixed clamping plate of the connecting block , and has a first end received in the opening of the connecting block and formed with a through hole aligning with the through hole of the opening of the connecting block . A pivot rod is extended through the through hole of the opening of the connecting block and the through hole of the movable clamping plate . The movable clamping plate has a second end formed with an extension formed with a through hole . A threaded rod is extended through the through hole of the extension of the fixed clamping plate and the through hole of the extension of the movable clamping plate , and is screwed with a nut , thereby securing the movable clamping plate on the fixed clamping plate .

The mounting ring having a flexible feature is mounted between the movable clamping plate and the fixed clamping plate . The mounting ring has a wall formed with a slit and has two ends each formed with an annular lip .

As shown in FIGS. 8 and 8A, the mounting ring has a different inner diameter to fit and clamp the diameter of the rear frame of the stroller .

The slide is slidably mounted in the receiving chamber of the connecting block , and has a side formed with an oblong guide slot . A guide rod is extended through the pivot hole of the receiving chamber of the connecting block and the guide slot of the slide , so that the slide is movably mounted on the guide rod . An elastic member is mounted in the guide slot of the slide and is urged between the guide rod and a front wall of the guide slot of the slide . The slide has an end formed with an extension plate , and has a top formed with a reduced movable portion movably mounted in the cutout of the receiving chamber of the connecting block and an enlarged push portion located above the movable portion and movably mounted on the connecting block .

Referring to FIGS. 9 and 10, each of the two shock-absorbing devices is mounted on the bottom of the body , and includes a column , a wheel , an elastic member , and a protective sleeve .

The column is movably mounted in the respective socket of the body , and has an upper portion formed with two slide grooves and a lower portion formed with an annular resting flange . The column has an inner wall formed with an inner ring . Each of the two shock-absorbing devices further includes two locking bolts each extended through the respective circular hole of the body , the through hole of the respective protruding ears , the respective arcuate slot of the socket and the respective slide groove of the column , and two locking nuts each screwed on the respective locking bolt .

The wheel has a top rotatably mounted on the column and provided with two elastic hooks hooked on the inner ring of the column .

The elastic member is mounted on the column and urged between a bottom of the socket and the resting flange of the column .

The protective sleeve is mounted on the socket to encompass the column and the elastic member .

In operation, referring to FIGS. 11 and 11A, the rotation knob is rotated and unscrewed from the respective threaded rod , so that the clamping block is pushed outward by the respective elastic member , thereby detaching the shaft from the respective clamping block as shown in FIG. . Thus, the shaft of each of the two joint devices is slidable in the slide channel of the respective chamber , so that the two straddle bars can be moved relative to the body to adjust the distance between the two straddle bars so as to fit the width of the rear frames of the stroller . After adjustment, the rotation knob is rotated and screwed on the respective threaded rod , thereby clamping the shaft by the respective clamping block as shown in FIG. A.

Referring to FIGS. 12 and 12A, the two press blocks of each of the two joint devices is pressed inward to disengage the locking tooth from the engaging teeth of the hub as shown in FIG. . Thus, the cover can be rotated on the hub , so that each of the two straddle bars can be moved from the position as shown in FIG. 12 to the position as shown in FIG. A. Thus, the angle of each of the two straddle bars can be adjusted so as to fit the inclined angle of the rear frames of the stroller .

Referring to FIGS. 13 and 13A, the mounting ring of each of the two connecting devices is mounted on the respective rear frame of the stroller . Then, the movable clamping plate is combined with the fixed clamping plate to clamp the mounting ring therebetween. Then, the push portion of the slide is pushed outward to detach the extension plate of the slide from the groove of the connecting block as shown in FIG. 13, so that the action section of the straddle bar can be inserted into the groove of the connecting block . Then, the push portion of the slide is released, so that the slide is returned by the restoring force of the elastic member to return the extension plate of the slide to seal the groove of the connecting block as shown in FIG. 13A, so that the action section of the straddle bar is retained in the groove of the connecting block , thereby assembling the whole rear carrying board assembly on the stroller as shown in FIG. .

Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.

CLAIMS

1. A rear carrying board assembly of a stroller, comprising a body, two joint devices, two connecting devices, and two shock-absorbing devices, wherein: the body has a bottom having a first side having two ends each formed with a chamber, the chamber is formed with a slide channel, a plurality of pivot ears each located at a first side of the slide channel and each formed with a through hole, and a through bore located at a second side of the slide channel, the slide channel has a side wall formed with a rectangular hole, the chamber has a side wall formed with a circular hole aligning with the through hole of each of the pivot ears, the body includes two clamping blocks each pivotally mounted in the respective chamber and each having a first side formed with a plurality of pivot ears and a second side formed with a through hole, two threaded rods each extended through the through bore of the respective chamber and the through hole of the respective clamping block, two rotation knobs each screwed on the respective threaded rod and each rested on the respective clamping block, and two elastic members each mounted on the respective threaded rod and each urged between the respective chamber and the respective clamping block; each of the two joint devices is mounted on the body, and includes a shaft, a cover, a washer, two press blocks, and a straddle bar; the shaft is extended through the rectangular hole and is slidably mounted in the slide channel of the respective chamber, the shaft has a distal end provided with a circular hollow hub which has a center provided with an inner threaded rod and a periphery formed with a plurality of engaging teeth; the cover is mounted on the hub of the shaft, the cover has a periphery formed with two opposite windows and provided with a hollow receiving portion; each of the two press blocks is movably mounted in the respective window of the cover, and is provided with an arcuate block which has a first side formed with a locking tooth meshing with the engaging teeth of the hub of the shaft, and a second side having two ends each formed with a mounting hole for mounting an elastic member which is urged between the two press blocks; the straddle bar has a first end inserted into the receiving portion of the cover and a second end formed with an action section; each of the two connecting devices is mounted on the straddle bar of the respective joint device, and includes a connecting block, a movable clamping plate, a mounting ring, and a slide; the connecting block has a first portion formed with an arcuate fixed clamping plate which has a first end formed with an opening and a second end formed with an extension formed with a through hole, the opening has a top wall and a bottom wall each formed with a through hole, the connecting block has a mediate portion formed with a groove for insertion of the action section of the straddle bar of the respective joint device, the connecting block has a second portion formed with a receiving chamber which has two side walls each formed with a pivot hole and a top wall formed with a cutout; the movable clamping plate is pivotally mounted on the fixed clamping plate of the connecting block, and has a first end received in the opening of the connecting block and formed with a through hole aligning with the through hole of the opening of the connecting block, and a second end formed with an extension formed with a through hole; the mounting ring is mounted between the movable clamping plate and the fixed clamping plate; the slide is slidably mounted in the receiving chamber of the connecting block, the slide has an end formed with an extension plate, and has a top formed with a movable portion movably mounted in the cutout of the receiving chamber of the connecting block and an enlarged push portion located above the movable portion and movably mounted on the connecting block; each of the two shock-absorbing devices is mounted on the bottom of the body, and includes a column, a wheel, an elastic member, and a protective sleeve.

2. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the body has a top formed with an anti-skid portion.

3. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the bottom of the body is formed with a plurality of reinforcing ribs.

4. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the body further includes two pivot rods each extended through the circular hole of a respective chamber, each of the pivot ears of a respective clamping block and the through hole of each of the pivot ears of the respective chamber.

5. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the cover has a center formed with a central hole for passage of a threaded rod which is extended through the washer and is screwed into the inner threaded rod, thereby securing the cover on the hub of the shaft.

6. The rear carrying board assembly of a stroller in accordance with claim 1, further comprising a pivot rod extended through the through hole of the opening of the connecting block and the through hole of the movable clamping plate.

7. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the receiving chamber communicates with the groove.

8. The rear carrying board assembly of a stroller in accordance with claim 1, further comprising a threaded rod extended through the through hole of the extension of the fixed clamping plate and the through hole of the extension of the movable clamping plate, and screwed with a nut, thereby securing the movable clamping plate on the fixed clamping plate.

9. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the mounting ring has a wall formed with a slit.

10. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the mounting ring has two ends each formed with an annular lip.

11. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the mounting ring has a different inner diameter to fit the diameter of the rear frame of the stroller.

12. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the slide has a side formed with an oblong guide slot, a guide rod is extended through the pivot hole of the receiving chamber of the connecting block and the guide slot of the slide, so that the slide is movably mounted on the guide rod, and an elastic member is mounted in the guide slot of the slide and is urged between the guide rod and a front wall of the guide slot of the slide.

13. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the bottom of the body has a second side having two ends each formed with a socket formed with two opposite arcuate slots, the socket has a periphery provided with two pairs of protruding ears each formed with a through hole, the bottom of the body has a side wall formed with two circular holes aligning with the through hole of the respective protruding ears.

14. The rear carrying board assembly of a stroller in accordance with claim 13, wherein the column is movably mounted in the respective socket of the body, and has an upper portion formed with two slide grooves and a lower portion formed with an annular resting flange.

15. The rear carrying board assembly of a stroller in accordance with claim 14, wherein each of the two shock-absorbing devices further includes two locking bolts each extended through the respective circular hole of the body, the through hole of the respective protruding ears, the respective arcuate slot of the socket and the respective slide groove of the column, and two locking nuts each screwed on the respective locking bolt.

16. The rear carrying board assembly of a stroller in accordance with claim 14, wherein the elastic member of each of the two shock-absorbing devices is mounted on the column and urged between a bottom of the socket and the resting flange of the column.

17. The rear carrying board assembly of a stroller in accordance with claim 16, wherein the protective sleeve is mounted on the socket to encompass the column and the elastic member.

18. The rear carrying board assembly of a stroller in accordance with claim 1, wherein the column has an inner wall formed with an inner ring, and the wheel has a top rotatably mounted on the column and provided with two elastic hooks hooked on the inner ring of the column.

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