CN2822338Y

CN2822338Y - Folding support for foldable table and chair

Info

Publication number: CN2822338Y
Application number: CNU2005200617900U
Authority: CN
Inventors: 蔡秉成
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-18
Filing date: 2005-07-18
Publication date: 2006-10-04
Anticipated expiration: 2015-07-18
Also published as: US20070012228A1

Abstract

The utility model provides a folding support frame used for foldable tables and chairs, which relates to a folding frame, particularly a folding support frame used for tables and the chairs. The folding support frame comprises an upper connecting frame (1) and a lower connecting frame (2) which are mutually hinged; a hole (12) is arranged on the upper connecting frame in a region overlapped with the lower connecting frame (2) when the upper supporting frame is in a supporting state, and a hole (23) is arranged in a corresponding position on the lower connecting frame (2). A pin shaft (31) of which the diameter is shorter than hole diameters is arranged. When the utility model is in the supporting state, the shaft pin (31) is inserted and put in the two holes. The utility model enhances the degree of fastness when the folding support frame plays the function of supporting; when the degree of fastness is enhanced, the operation is simultaneously conveniently.

Description

The folding rack that is used for folding table/chair

Technical field

The utility model relates to folding rack, particularly the folding rack of tables and chairs use.

Background technology

Existing folding rack majority is made up of hinged last link of an end and following link, but its steadiness is bad and inconvenience when operating.

Summary of the invention

The purpose of this utility model is to provide a kind of firm supporting performance good folding rack.

The purpose of this utility model can realize like this, design a kind of folding rack that is used for folding table/chair, comprise link and following link, last link and following link are hinged, described going up on the link is provided with a hole when holding state Yu in the following link overlapping areas, following link is provided with a hole at correspondence position; One pivot pin is set, and the diameter of pivot pin is less than the aperture; When holding state, pivot pin inserts in two holes.

The utility model has strengthened the firm degree when folding rack plays a supportive role, and is when strengthening firmness, easy to use.

Description of drawings

Fig. 1 is the schematic diagram of one of the utility model preferred embodiment.

Fig. 2 is two a schematic diagram of the utility model preferred embodiment.

Fig. 3 is the generalized section of two blind slot parts of the utility model preferred embodiment.

Fig. 4 is three a schematic diagram of the utility model preferred embodiment.

Fig. 5 is the fixed cover schematic diagram of the utility model preferred embodiment.

Fig. 6 is the schematic diagram of three another angles of the utility model preferred embodiment.

Fig. 7 is the schematic diagram of one of the utility model application holding state.

Fig. 8 is the schematic diagram of one of the utility model application table pin closed state.

Fig. 9 is two a schematic diagram of the utility model application.

The utility model will be further described below in conjunction with embodiment for the specific embodiment.

As shown in Figure 1, a kind of folding rack that is used for folding table/chair comprises link 1 and following link 2, and last link 1 and following link 2 are hinged, described going up on the link 1 is provided with a hole 12 when holding state Yu in following link 2 overlapping areas, following link 2 is provided with a hole 23 at correspondence position; One pivot pin 31 is set, and the diameter of pivot pin 31 is less than the aperture; When holding state, pivot pin 31 inserts in two holes.

As shown in Figure 2, described hole 12 extends to form a chute 11 along last link 1 length direction, and pivot pin 31 passes chute 11, and the two ends size of pivot pin 31 is greater than the bore of chute 11, and the diameter in pivot pin 31 stage casings is less than the bore of chute 11; Hole 23 extends in the overlapping end formation U-shaped jag 21 of holding state and last link 1 chute 11 along link 2 length directions down, and these jag 21 bores are equal to or greater than the bore of link chute 11.When chute 11 and U-shaped jag 21 were overlapping, pivot pin 31 moved to chute 11 and U-shaped jag 21 overlappings and plays a part to pin and go up link 1 and following link 2.

As shown in Figure 3, described hole 12 extends to form a blind groove 13 for blind hole along last link 1 length direction, and the notch bore of this blind groove 13 is less than the cell body internal diameter, and an end of pivot pin 31 places in the cell body.

The other end of described pivot pin 31 is provided with one and holds cover.The design of holding cover is that the operator takes or the push-and-pull pivot pin for convenience.Holding cover also can replace with fixed cover.

As Fig. 4, shown in Figure 5, described go up is provided with the fixed cover 3 that can move freely along the link length direction on the link 1, and last link 1 passes fixed cover 3, and the two ends of pivot pin 31 are fixed on the fixed cover 3; When last link is in the Support Position with following link, fixes 3 covers and move to the position of going up link 1 and following link 2 with pivot pin 31 to the small part containing.Chute 11 limits the distance that fixed cover 3 moves.

The length of described fixed cover 3 is between 15 millimeters to 150 millimeters.Fixed cover can be to be made of metal, and also can be plastic products.

Ear 22 is pulled in the formation that stretches out abreast of non-intersection side during described down link 2 superimposed and the central axis of pin joint.Pull ear 22 with support when superimposed, pulling ear 22 with hand can be easily more superimposed with support.

As shown in Figure 6, ear 22 is pulled in the formation that stretches out abreast of the central axis of the side at U-shaped jag 21 places of described down link and pin joint.Pull ear 22 in the setting of the termination of following link 2 and can pull link 2 down more like a cork.

The described development length of ear 22 of pulling is between 12 millimeters to 100 millimeters.Minimum length will satisfy at least is convenient to pushing of thumb.

As shown in Figure 5, described fixed cover 3 near an end setting of pin joint with pull the breach 32 that ear 22 matches.Pull ear 22 some on following link 2 and the position is set can stops moving of fixed cover 3, therefore pull ear and be arranged on when stoping the position, fixed cover 3 correspondences are provided with breach 32 in this position and pull ear 22 with containing.

As shown in Figure 7, the utility model is applied in a folding desktop and is in the state that supports table leg; The table leg of shown in Figure 8 is this folding desktop is in the folding state of regaining.

Shown in Figure 9 is the state that the utility model is applied in another folding desktop.

Claims

1, a kind of folding rack that is used for folding table/chair, comprise link (1) and following link (2), last link (1) and following link (2) are hinged, it is characterized in that: the described link (1) of going up upward is provided with a hole (12) when holding state Yu in following link (2) overlapping areas, following link (2) is provided with a hole (23) at correspondence position; One pivot pin (31) is set, and the diameter of pivot pin (31) is less than the aperture; When holding state, pivot pin (31) inserts in two holes.

2, folding rack according to claim 1, it is characterized in that: described hole (12) extend to form a chute (11) along last link (1) length direction, pivot pin (31) passes chute (11), the two ends size of pivot pin (31) is greater than the bore of chute (11), and the diameter in pivot pin (31) stage casing is less than the bore of chute (11); Edge, hole (23) link (2) length direction down extends in holding state and the overlapping end formation U-shaped jag (21) of last link (1) chute (11), and this jag (21) bore is equal to or greater than the bore of link chute (11).

3, folding rack according to claim 1, it is characterized in that: described hole (12) extend to form a blind groove (13) for blind hole along last link (1) length direction, the notch bore of this blind groove (13) is less than the cell body internal diameter, and an end of pivot pin (31) places in the cell body.

4, folding rack according to claim 2, it is characterized in that: the described link (1) of going up is gone up the fixed cover (3) that setting can move freely along the link length direction, last link (1) passes fixed cover (3), and the two ends of pivot pin (31) are fixed on the fixed cover (3); When last link was in the Support Position with following link, fixing (3) cover moved to the position of going up link (1) and following link (2) to the small part containing with pivot pin (31).

5, folding rack according to claim 2 is characterized in that: ear (22) is pulled in the formation that stretches out abreast of the non-intersection side during described down link (2) superimposed and the central axis of pin joint.

6, folding rack according to claim 2 is characterized in that: the side that the described U-shaped jag (21) of link is down located and the central axis of pin joint stretch out abreast to form and pull ear (22).

7, folding rack according to claim 4 is characterized in that: described fixed cover (3) near an end setting of pin joint with pull the breach (32) that ear (22) matches.

8, according to claim 5 or 6 described folding racks, it is characterized in that: the described development length of ear (22) of pulling is between 12 millimeters to 100 millimeters.

9, according to claim 4 or 7 described folding racks, it is characterized in that: the length of described fixed cover (3) is between 15 millimeters to 150 millimeters.