Foldable baby stroller frame

Stroller folding skeleton

This creation is a kind of stroller skeleton, which mainly provides the operator to control the unfolding and folding of the skeleton.

A typical retractable stroller can be deployed when in use and can be folded to save space when not in use. A conventional retractable stroller having a folded joint as shown in Fig. 12 is provided with a device on the upper joint 92 of the handle tube 91 and fixed to the end of the front leg tube 93 and having an end face having a positioning groove 941. Joint 94. The handle tube 1 is pivotally connected to the lower joint 4, and a handle rod 11 is provided on the handle tube 1 to drive the positioning rod 912 to move unidirectionally or reciprocally. The positioning rod 912 is held in the positioning groove 941 by a resilient member 910 to form a click state, preventing relative pivoting between the upper joint 92 and the lower joint 94; when the skeleton of the baby carriage is to be folded, the user uses the lever 911 The positioning rod 912 is driven away from the positioning groove 941, that is, the relative pivot between the upper joint 92 and the lower joint 94 is opened, so that the stroller frame can be folded.

The above-mentioned conventional folding joint is fixed only by the positioning rod and the positioning groove, and the strength thereof is insufficient, and it is particularly easy to cause the accidental folding of the skeleton due to the plastic crack of the lower joint.

In order to solve the above-mentioned shortcomings, the creator provides a new type of stroller folding skeleton, comprising a support frame with a wheel set, a latching mechanism, an upper support frame, a handle tube and a release mechanism, wherein the support of the wheel set is provided. The skeleton is provided with a socket for pivotally connecting an upper support frame, and a seat frame and a handle tube are connected by the upper support frame. A front leg tube and a rear leg tube are pivotally connected under the socket having the support frame of the wheel set, and a front folding lever and a rear folding lever are pivotally connected between the front leg tube and the rear leg tube. The front folding lever is pivotally connected with the rear folding lever, and the relative pivoting and fixing are controlled by the clamping mechanism. The release mechanism device is used for controlling the latching mechanism in the handle tube, and can drive the latching mechanism to relatively pivot between the front folding lever and the rear folding lever, so that the front leg tube and the rear leg tube can be pivoted to close together . .

In addition, this creation can be provided with a folding auxiliary frame between the front and rear folding bars and the skeleton to enable the assistant to improve the smoothness of the folding.

Other objects of the present invention and the scope of further application can be clearly seen from the following detailed description. However, these detailed descriptions and the examples are for illustrative purposes only, as various changes and modifications made in the spirit and scope of the present invention are available to those skilled in the art from these details. It is clear from the description and the drawings, but these detailed descriptions and drawings are for illustrative purposes only and should not be limited to the present invention.

First, please refer to the embodiment of the stroller folding frame shown in Figures 1~5, which includes a support frame with a wheel set, a click mechanism 8, an upper support frame 4, a handle tube 10 and a release. The mechanism 5, wherein the support frame 1 having the wheel set is provided with a socket 3 pivotally connected to the upper support frame 4, and the seat frame 200 and the handlebar tube 10 are connected by the upper support frame 4. A front foot tube and a rear leg tube 12 are pivotally connected under the receiving base 3 of the support frame 1 of the wheel set. A front folding lever 21 and a rear folding line are pivotally connected between the front leg tube 11 and the rear leg tube 12. Rod 22. The front folding lever 21 is pivotally connected to the rear folding lever 22, and is controlled to be relatively pivoted and fixed by the latching mechanism 8. The release mechanism 5 is disposed on the handlebar tube 10 for controlling the latching mechanism 8, and can drive the latching mechanism 8 to relatively pivot between the front folding lever 21 and the rear folding lever 22, thereby causing the front leg tube 11 and the rear foot tube The tube 12 can be pivoted and folded toward each other.

Please refer to the supporting frame 1 with the wheel set shown in Figures 3 and 4, which has an unfolded fixed state (as shown in Fig. 1) and a folded state (as shown in Fig. 10), which has The supporting frame 1 of the wheel set includes a receiving seat 3, by which the front leg tube 11 and the rear leg tube 12 are pivotally connected, wherein the lower end of the front leg tube 11 can be freely turned to the front wheel set 13 and the lower end tube 12 is disposed at the lower end of the rear leg tube 12 a rear wheel set 14; and a folding lever 21 and a rear folding lever 22 are pivotally connected to each other between the front and rear leg tubes 11, 12, and in the present embodiment, the front folding lever 21 or The rear folding lever 22 and the supporting frame 1 having the wheel set (the front leg tube 11 or the rear leg tube 12) are pivotally connected to the folding auxiliary frame 20, and the folding auxiliary frame 20 can be a pneumatic rod or an elastic rod; When the support frame 1 having the wheel set is in the unfolded fixed state, the front and rear folding bars 21, 22 are slightly parallel or straight to support the front and rear leg tubes 11, 12; and when there is a wheel set When the support frame 1 is in a folded state, the folding auxiliary frame 20 is configured to assist the front and rear folding levers 21 and 22 to rotate and has a slightly "V" shape (as shown in FIG. 9). In addition, the front and rear leg tubes 11, 12 are brought closer to each other.

The upper support frame 4 is pivotally connected to the receiving base 3. In the embodiment, the upper support frame 3 is slightly U-shaped, and the connecting seat 41 is connected at both ends, and the connecting seat 41 extends out of a connecting portion. 411, by means of a replaceable seat frame 200, an infant carrier or a Car Seat (not shown).

The seat frame 200 is provided with a baby seat, and includes a socket 201, and the socket 201 is mounted on the connecting portion 411 of the connecting seat 41.

The handle tube 10 includes two side tubes 110, and the ends of the two side tubes 110 are connected to a rotating base 100, and the rotating base 100 is pivotally connected to the connecting base 41 of the upper supporting frame 4. The handle tube 10 includes There is a release mechanism 5 by which the handle tube 10 has a fixed state of inclination (as shown in Fig. 1) for the operator to push the stroller and release the hand by the release mechanism 5. The tube 10 is in a rotatable state (as shown in Fig. 5); please refer to the release mechanism 5 shown in Figs. 3 and 4, including a sliding sleeve 51, a connecting rod 52, a releasing member 53, and an elastic member 50. (See FIG. 5), wherein the release member 53 has a chute 531 and is mounted in the rotating base 100. In the fixed state of the handlebar 10, the device is rotated by the release member 53. The elastic member 50 between the seats 100 maintains the release member 53 between the connecting seat 41 and the rotating base 100, and forms a latching position with the positioning groove 412 of the connecting seat 41, so that the rotating base 100 cannot be connected with respect to the connecting seat. The seat 41 is rotated to form the handle tube 10 in a fixed state of inclination angle; and the two ends of the link 52 are respectively connected to the release member 53. The chute 531 and the sliding sleeve 51 disposed on the tube 110 on both sides of the handle tube 10; please continue to see FIG. 5, so that when the sliding sleeve 51 is pulled, the chute 531 is used to drive the sleeve The release member 53 is moved in the direction of the rotating base 100 to disengage the positioning groove 412 of the connecting seat 41, thereby releasing the latch, thereby causing the rotating base 100 to be in a rotatable state together with the handlebar tube 10. (The release mechanism is also replaced by the one-handed operating mechanism 300 used in general strollers, as in US Patent No. 6,443,479)

Please refer to the driving mechanism 7 shown in Figures 3, 4 and 6 for mounting on the upper support frame 4, including the driving plate 71, the slider 72 and the linking member 73 (in the present embodiment, the linking member 73 is used. A flexible wire, such as a steel cable, is disposed in the rotating base 100 and is coupled to the rotating base 100 to rotate synchronously with the rotating base 100, that is, when the handle tube 10 is rotated, the driving The disc 71 will rotate the tube 10, and the driving disc 71 has a beveled end surface 711; and the slider 72 is a laterally movable device in the sliding groove 44 at both ends of the upper support frame 4, one end of the slider 72 It is in contact with the beveled end surface 711, and the other end is connected to one end of the linking member 73.

Please refer to the latching mechanism 8 shown in FIG. 7 , which is arranged between the front and rear folding levers 21 and 22 to control the unfolding and folding of the front and rear folding levers 21 and 22, and the latching mechanism 8 The utility model comprises a latching member 81, an elastic member 82 and a latching portion 83. The latching member 81 is disposed in the front folding lever 21 or the rear folding lever 22, and is connected to the linking member 73. One end, and the latching portion 83 is provided with respect to the front folding lever 21 or the rear folding lever 22 relative to the latching member 81. In the embodiment, the latching portion 83 can be a consistently perforated shape, or The latching member 81 is clamped to each other (as shown in FIG. 8); the latching member 81 is fixedly formed with the latching portion 83 by the elastic member 82, thereby maintaining the front and rear folding. The rods 21, 22 are in a deployed and fixed state, and the latching member 81 can also be disengaged from the latching portion 83 so that the front and rear folding levers 21, 22 can be in a folded state.

Referring to FIG. 9 , the above-mentioned component, when the stroller tube 10 is in a normally fixed state when the stroller is in a fixed state, the latching member 81 and the latching portion 83 are mutually engaged. The cymbal is fixed so that the tubular members cannot pivot; when the operator wants to fold the baby carriage, the sliding sleeve 51 of the release structure 5 is pulled, and the release member 53 is driven to move toward the rotating base 100 via the connecting rod 52. The release member 53 is disengaged from the positioning groove 412 of the connecting seat 41, thereby releasing the locking of the connecting seat 41 (as shown in FIG. 5), and the operator pushes the handle tube 10 backward toward the rear leg tube 12 at this time. Rotation (as shown in Fig. 9); please continue to refer to Fig. 6, since the handle tube 10 is rotated together with the rotating base 100, and the driving plate 71 of the driving structure 7 is connected to the inside of the rotating base 100. Therefore, when the handle tube 10 is rotated, the drive plate 71 rotates the tube 10 synchronously; since the drive plate 71 has a beveled end surface 711, and the slider 72 is in contact with the beveled end surface 711, accordingly, When the driving plate 71 rotates, the slider 72 is pushed up to the inner receiving seat 3 by the beveled end surface 711. Moving, so that the latching member 81 is pulled by the connecting member 73 by the movement of the slider 72 to release the latching of the latching portion 81 to the latching portion 83, so that the front and rear folding levers are fixed. 21 is pulled by the folding auxiliary frame 20 to be "V", and then the front and rear leg tubes 11, 12 are pivoted to each other to close the folding.

In addition, please refer to FIG. 11 , the present invention also has the connecting member 73 (which is a flexible wire) connected to the latch member 81 and the sliding sleeve 51 of the release mechanism 8 (or a single-hand operation structure). The latching member 51 directly drives the latching member 81 to achieve the purpose of folding. The releasing mechanism 5 can also be replaced by a one-hand operating mechanism 300 for a general stroller, such as the US Patent No. 6,443,479.

In summary, this creation has excellent practicality, novelty and progress, and meets the application requirements of the new patent. It is submitted in accordance with the law, and you are requested to give the patent as soon as possible.

<p>1. . . Support skeleton with wheel set</p><p>10. . . Hand tube</p><p>11. . . Forefoot tube</p><p>12. . . Hind leg</p><p>13. . . Front wheel set</p><p>14. . . Rear wheel set</p><p>100. . . Rotating seat</p><p>110. . . Side tube</p><p>20. . . Folding auxiliary frame</p><p>twenty one. . . Front folding lever</p><p>twenty two. . . Rear folding lever</p><p>200. . . Seat frame</p><p>201. . . socket</p><p>3. . . Socket</p><p>300. . . One-handed operation structure</p><p>4. . . Upper support frame</p><p>41. . . Connecting seat</p><p>44. . . Chute</p><p>411. . . Connection</p><p>412. . . Positioning slot</p><p>5. . . Release mechanism</p><p>50. . . Elastic component</p><p>51. . . Sleeve</p><p>52. . . link</p><p>53. . . Release piece</p><p>531. . . Chute</p><p>7. . . Drive mechanism</p><p>71. . . Disk drive</p><p>72. . . Slider</p><p>73. . . Linkage</p><p>711. . . Beveled end face</p><p>8. . . Card mechanism</p><p>81. . . Card assembly</p><p>82. . . Elastic component</p><p>83. . . Card department</p><p>91. . . Hand tube</p><p>92. . . Upper joint</p><p>93. . . Forefoot tube</p><p>94. . . Lower joint</p><p>910. . . Elastic component</p><p>911. . . Pull rod</p><p>912. . . Positioning rod</p><p>941. . . Positioning slot</p>

The first picture is a fixed perspective view of the creation of this creation.

Figure 2 is a side view of the creation.

Figure 3 is a schematic diagram of the decomposition of the authoring component.

Fig. 4 is a schematic exploded view of the components of the present driving drive structure and the release structure.

Figure 5 is a schematic diagram of a partial perspective action of the present release structure.

Figure 6 is a schematic diagram of the driving structure and the mechanism of the card.

Figure 7 is a schematic diagram of the cross-section of the creation mechanism.

Fig. 8 is an exploded perspective view showing a variation of the embodiment of the present cartridge mechanism.

Figure 9 is a schematic diagram of the folding movement of the original skeleton.

Figure 10 is a schematic diagram of the state of the creation of the fold.

Figure 11 is a schematic diagram of the creation of the card mechanism directly by the release mechanism.

Figure 12 is a schematic view of a conventional skeleton folding structure (known art).