Connecting structure for a bed foot

The present invention discloses a connecting structure for a bed foot. The bed foot is pivotally connected to a bottom of a bed board frame. An inner side of the bed foot is pivotally connected with at least one support rod. The support rod has a free end formed with a through hole. The bottom of the bed board frame is provided with a protruding post corresponding in position to the through hole. The through hole has an opening at one side thereof so that the through hole is able to engage with the protruding post through the opening, without aiming at the protruding post. Accordingly, the operation is very convenient and quick.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a bed frame, and more particularly to a connecting structure for a bed foot.

2. Description of the Prior Art

As shown inFIG. 1, a conventional bed frame comprises a bed board frame1and a bed foot2. The bed foot2is pivotally connected to a bottom of the bed board frame1. In order to support the bed foot2securely, an inner side of the bed foot2is pivotally connected with at least one support rod3. The support rod3has a free end formed with a through hole31. The bottom of the bed board frame1is provided with a protruding post11corresponding in position to the through hole31. When in use, the through hole31of the support rod3is inserted onto is the protruding post11so that the bed board frame1, the bed foot2, and the support rod3are in a triangular form to support the expanded bed frame securely.

However, this kind of operation is not convenient. The through hole31of the support post3is slightly larger in diameter than the protruding post11. It is not easy to aim at the protruding post11when the through hole31is inserted onto the protruding post11, referring toFIG. 2. Particularly, if there are two support rods3, it is more difficult to aim at the two protruding posts11simultaneously. This is very inconvenient to operate. In addition, because the support rod3is a round rod, it is necessary to flatten two ends of the support rod3for connecting with the bed board frame1and the bed foot2for mounting easily. This increases the difficulty in manufacturing.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a connecting structure for a bed foot. When in an expanded status, a support rod is in conjunction with a protruding post of a bed board frame for convenient operation.

According to the present invention, there is provided a connecting structure for a bed foot, the bed foot being pivotally connected to a bottom of a bed board frame, an inner side of the bed foot being pivotally connected with at least one support rod, the support rod having a free end formed with a through hole, the bottom of the bed board frame being provided with a protruding post corresponding in position to the through hole, and characterized by: the through hole having an opening at one side thereof.

Preferably, a trough is formed above the through hole and the opening, the trough having a diameter larger than diameters of the is through hole and the opening, the protruding post having a threaded section, a nut being screwed to the threaded section of the protruding post and located in the trough of the support rod after being tightened.

Preferably, the support rod is a flat rod.

Preferably, the opening has a diameter equal to the diameter of the through hole, thereby the free end of the support rod being formed with a U-shaped hole.

Alternatively, the opening has a diameter smaller than the diameter of the through hole, thereby the free end of the support rod being formed with a C-shaped hole.

The support rod has the free end formed with the through hole. The through hole has the opening at one side thereof so that the through hole is able to engage with the protruding post through the opening, without aiming at the protruding post. According, the operation is very convenient and quick. In addition, the trough is formed above the through hole and the opening to accommodate the nut screwed to the threaded section of the protruding post. The side of the nut holds against the edge of the trough, which prevents the through hole from disengaging from the protruding post to ensure the security in use. Furthermore, the support rod is a flat rod. It is not necessary to flatten the end of the support rod, decreasing the procedure and cost of manufacture.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

As shown inFIGS. 3 and 4, a collapsible bed frame according to a first preferred embodiment of the present invention comprises a bed board frame1and a bed foot2. The bed foot2is pivotally connected to a bottom of the bed board frame1. An inner side of the bed foot2is pivotally connected with at least one support rod3. The support rod3has a free end formed with a through hole31. The bottom of the bed board frame1is provided with a protruding post11corresponding in position to the through hole31. In this embodiment, the through hole31has an opening32at one side thereof. The opening32has a diameter equal to the diameter of the through hole31so that the free end of the support rod3is formed with a U-shaped hole. The diameter of the opening32may be smaller than the diameter of the through hole31so that the free end of the support rod3is formed with a C-shaped hole.

When the bed frame is expanded, the bed foot2will be extended and the support rod3will be pulled with the through hole31at the free end engaging with the protruding post11of the bed board frame1through the opening32so that the bed board frame1, the bed foot2, and the support rod3are in a triangular form to support the bed frame securely.

When the free end of the support rod3is formed with a C-shaped hole, this design will prevent the through hole31from disengaging from is the protruding post11to ensure the security in use.

FIGS. 5 and 6show a second preferred embodiment of the present invention, which is substantially similar to the first preferred embodiment with the exceptions described hereinafter. The support rod3is a flat rod, as shown inFIG. 7. A trough33is formed above the through hole31and the opening32. The trough33has a diameter larger than those of the through hole31and the opening32. The protruding post11provided at the bottom of the bed board frame1has a threaded section.

When the bed frame is expanded, the bed foot2will be extended and the support rod3will be pulled with the through hole31at the free end engaging with the protruding post11of the bed board frame1through the opening32. A nut4is screwed to the threaded section of the protruding post1and located in the through33of the support rod3after being tightened. Accordingly, the bed board frame1, the bed foot2, and the support rod3are in a triangular form to support the bed frame securely.

Particularly, the side of the nut4holds against the edge of the trough33, which prevents the through hole31from disengaging from the protruding post11to ensure the security in use.