Adjustable folding table

Abstract

This invention proposes an adjustable folding table, comprising a tabletop, a fixing part, a first table leg, a backing member, a second table leg, a first locking fastener, and a second locking fastener. The fixing part is fixed to the bottom surface of the tabletop. The first table leg is pivotally mounted on the fixing part and spaced apart from the tabletop. The backing member is movably inserted through the first table leg and abuts against the bottom surface of the tabletop. The second table leg is pivotally mounted on the first table leg. The first locking fastener passes through the first table leg and the fixing part, and the second locking fastener passes through the first table leg and the second table leg. The relative positions and angles between the tabletop, the first table leg, and the second table leg are fixed by locking with the first locking fastener and the second locking fastener, respectively. When the first locking fastener and the second locking fastener are released, the tabletop, the first table leg, and the second table leg can rotate relative to each other.

Description

Adjustable folding table Technical Field

[0001] This creation is about a table and chair structure that can be adjusted in height and folded for storage. Prior Technology

[0002] Most tables and chairs on the market are of fixed height. Manufacturers sell tables and chairs of various heights to cater to different races, genders, and age groups, allowing consumers to choose a suitable height based on their own height. However, height changes with age. Furthermore, the required table and chair height varies depending on the activity. Using tables and chairs of inappropriate height can lead to muscle soreness and even affect bone development. Furthermore, preparing tables and chairs of various sizes to accommodate different heights and activities would be costly and take up excessive indoor space. Summary of the Invention

[0003] This invention proposes an adjustable folding table, which allows users to adjust its height and fold it up for storage.

[0004] The adjustable folding table proposed in this work has the following features: A table board; A fixing part is fixed to the bottom surface of the tabletop; the fixing part has: An adjustment groove is formed through the fixing part; the extension direction of the adjustment groove is parallel to the extension direction of the tabletop; A first table leg, pivotally mounted on the fixed part and spaced apart from the tabletop; the first table leg has: A perforation with its opening facing the bottom surface of the tabletop; A support rod, one end of which is pivotally mounted to the first table leg, and the other end of which is disposed in the adjustment groove and can move along the adjustment groove; A stopper is movably disposed in the through hole of the first table leg and can abut against the bottom surface of the tabletop; A second table leg, which is pivotally mounted on the first table leg; A first locking fastener is inserted through the first table leg and the fixing part; when the first locking fastener is tightened, the relative position and angle between the first table leg and the fixing part are fixed. A second locking fastener is inserted through the first table leg and the second table leg; when the second locking fastener is tightened, the relative position and angle of the first table leg and the second table leg are fixed. When the first locking fastener is released, the first table leg can rotate relative to the fixed part; when the second locking fastener is released, the first table leg and the second table leg can rotate relative to each other; thereby, the tabletop can move or rotate relative to the ground.

[0005] The advantage of this design lies in the fact that the relative positions and angles between the tabletop, the first table leg, and the second table leg are fixed by the first and second locking fasteners, respectively. When the first and second locking fasteners are tightened, the tabletop, the first table leg, and the second table leg are fixed together, and the support rod and the abutment provide additional support to the tabletop. When the first and second locking fasteners are loosened, the tabletop, the first table leg, and the second table leg can rotate relative to each other, thereby adjusting the height and angle of the tabletop relative to the ground. In addition, when the first and second locking fasteners are loosened, the tabletop can be rotated to be perpendicular to the ground and the angle between the first and second table legs can be reduced to save space when stored.

[0006] As in the aforementioned adjustable folding table, the first locking element is a screw, bolt, or screw handle.

[0007] As in the aforementioned adjustable folding table, the second locking device is a screw, bolt, or screw handle.

[0008] As in the aforementioned adjustable folding table, the abutment is a bolt.

[0009] As in the aforementioned adjustable folding table, the adjustment slot includes: A plurality of circular holes, which are spaced apart; A plurality of elongated holes are arranged alternately and connected to form the adjustment groove; when the support rod is located in the elongated hole, the support rod can rotate relative to the fixed part.

[0010] As mentioned above, the adjustable folding table includes: The second table leg has: A positioning groove is formed through the second table leg at one end near the first table leg; the positioning groove extends in an arc shape with the second locking fastener as its axis. The first table leg has: A positioning element is movably disposed in the positioning groove; An elastic element is connected to the positioning element and causes the positioning element to tend to move toward the second table leg, thereby enabling the positioning element to engage in the positioning groove.

[0011] As described above, the adjustable folding table has the following features: A plurality of wheels are respectively disposed at the bottom ends of the first table leg and the second table leg.

[0012] As mentioned above, the adjustable folding table includes: The first table leg has: A support groove is formed through the first table leg; the extension direction of the support groove is parallel to the extension direction of the first table leg. The second table leg has: A support plate, pivotally mounted on the second table leg; A bracing element is inserted through the second table leg and abuts against one end of the support plate; This adjustable folding table features: A support rod, one end of which is pivotally mounted to the other end of the secondary support plate, and the other end is located in the secondary support groove and can move along the secondary support groove. Simple Explanation of the Diagram

[0013] Figure 1 is a side view of the first embodiment of this invention. Figure 2 is a side view of the second embodiment of this invention. Figure 3 is a side view of the third embodiment of this invention. Implementation

[0014] Please refer to Figure 1. This invention proposes an adjustable folding table, which has a tabletop 10, a fixing part 20, a first table leg 30, a support rod 40, a backing part 50, a second table leg 60, a plurality of wheels 70, a first locking fastener 81 and a second locking fastener 82.

[0015] The fixing part 20 is fixed to the bottom surface of the tabletop 10 and has an adjustment groove 21. The adjustment groove 21 is formed through the fixing part 20, and the extending direction of the adjustment groove 21 is parallel to the extending direction of the tabletop 10. In this embodiment, the adjustment groove 21 includes a plurality of circular holes and a plurality of elongated holes. The circular holes are spaced apart from each other, and the circular holes and elongated holes are staggered and connected to form the adjustment groove 21.

[0016] The first table leg 30 is pivotally mounted on the fixing part 20 and spaced apart from the tabletop 10. The first table leg 30 has a through hole 31, a positioning member 32, and an elastic member 33. The opening of the through hole 31 faces the bottom surface of the tabletop 10. The elastic member 33 is connected to the positioning member 32 and causes the positioning member 32 to tend to move toward the second table leg 60.

[0017] One end of the support rod 40 is pivotally mounted to the first table leg 30, and the other end is disposed in the adjustment groove 21 and can move along the adjustment groove 21. When the user adjusts the angle between the first table leg 30 and the tabletop 10, the support rod 40 moves to one of the circular holes in the adjustment groove 21, and the support rod 40 can rotate relative to the fixed part 20 while moving. Therefore, when the support rod 40 is positioned in one of the circular holes, the angle between the first table leg 30 and the tabletop 10 is fixed. The abutment 50 is movably disposed in the through hole 31 of the first table leg 30 and can abut against the bottom surface of the tabletop 10. In this embodiment, the abutment 50 is a bolt, and the user can fine-tune the abutment 50 according to the distance between the first table leg 30 and the tabletop 10 to improve the stability of the tabletop 10.

[0018] The second table leg 60 is pivotally mounted on the first table leg 30 and has a positioning groove 61. The positioning groove 61 extends through the end of the second table leg 60 near the first table leg 30 and extends in an arc shape with the second locking fastener 82 as its axis. The positioning groove 61 includes a plurality of circular holes and a plurality of arc-shaped elongated holes. The circular holes are spaced apart from each other, and the circular holes and arc-shaped elongated holes are staggered and connected to form the positioning groove 61. The positioning member 32 is movably disposed in the positioning groove 61, and the elastic member 33 causes the positioning member 32 to tend to move toward the second table leg 60, thereby enabling the positioning member 32 to engage in one of the circular holes of the positioning groove 61. When the second table leg 60 rotates relative to the first table leg 30, the second table leg 60 can push against the positioning member 32, causing the positioning member 32 to resist the elastic member 33 and disengage from one of the circular holes of the positioning groove 61, and then move along the arc-shaped elongated hole to engage in another circular hole of the positioning groove 61. Wheels 70 are respectively disposed at the bottom ends of the first table leg 30 and the second table leg 60, enabling the adjustable folding table to move relative to the ground. In other embodiments, the adjustable folding table may not have wheels 70.

[0019] A first locking fastener 81 passes through the first table leg 30 and the fixing part 20. When the first locking fastener 81 is locked, the relative position and angle between the first table leg 30 and the fixing part 20 are fixed. When the first locking fastener 81 is released, the first table leg 30 can rotate relative to the fixing part 20, thereby allowing the tabletop 10 to rotate relative to the ground. A second locking fastener 82 passes through the first table leg 30 and the second table leg 60. When the second locking fastener 82 is locked, the relative position and angle between the first table leg 30 and the second table leg 60 are fixed. When the second locking fastener 82 is released, the first table leg 30 and the second table leg 60 can rotate relative to each other, thereby allowing the tabletop 10 to move or rotate relative to the ground. Therefore, the user can loosen the first locking fastener 81 and the second locking fastener 82 to adjust the angle between the fixing part 20, the first table leg 30, and the second table leg 60, thereby adjusting the distance and angle of the tabletop 10 relative to the ground, and then tighten the first locking fastener 81 and the second locking fastener 82 to fix the fixing part 20, the first table leg 30, the second table leg 60, and the tabletop 10. In this embodiment, the first locking fastener 81 and the second locking fastener 82 can be screws, bolts, or screw handles, etc., but are not limited thereto.

[0020] Please refer to Figure 2. This invention proposes an adjustable folding chair in the second embodiment. The adjustable folding chair of the second embodiment is similar to the adjustable folding table of the first embodiment, with the difference being at least that the tabletop 10 of the adjustable folding table is replaced by the chair board 10A of the adjustable folding chair. Another difference is that the adjustable folding chair further includes a connecting portion 11A and a backrest 12A. The connecting portion 11A is disposed on one edge of the chair board 10A, and the backrest 12A is rotatably disposed on the connecting portion 11A, thereby enabling the adjustable folding chair to be folded and stored.

[0021] Please refer to Figure 3. The third embodiment of this invention is similar to the first embodiment, with the difference being at least that the adjustable folding table further includes a support rod 41B, the first table leg 30 further includes a support groove 35B, and the second table leg 60 further includes a support plate 62B and abutment member 63B. The secondary support groove 35B extends through the first table leg 30, and its extension direction is parallel to the extension direction of the first table leg 30. In this embodiment, the secondary support groove 35B includes a plurality of circular holes and a plurality of elongated holes. The circular holes are spaced apart from each other, and the circular holes and elongated holes are staggered and connected to form the secondary support groove 35B. The secondary support plate 62B is pivotally mounted on the second table leg 60, and the secondary abutment member 63B passes through the second table leg 60 and abuts against one end of the secondary support plate 62B. One end of the secondary support rod 41B is pivotally mounted to the other end of the secondary support plate 62B, and the other end of the secondary support rod 41B is disposed in the secondary support groove 35B and can move along the secondary support groove 35B. When the user adjusts the angle between the first table leg 30 and the second table leg 60, the secondary support rod 41B moves to one of the circular holes in the secondary support groove 35B. Therefore, when the secondary support rod 41B is positioned in one of the circular holes in the secondary support groove 35B, the angle between the first table leg 30 and the second table leg 60 is fixed.

[0022] The advantage of this design lies in the fact that the relative positions and angles between the tabletop 10, the first table leg 30, and the second table leg 60 are fixed by the first fastener 81 and the second fastener 82, respectively. When the first fastener 81 and the second fastener 82 are locked, the tabletop 10, the first table leg 30, and the second table leg 60 are fixed to each other, and the support rod 40 and the abutment 50 provide additional support for the tabletop 10. When the first fastener 81 and the second fastener 82 are released, the tabletop 10, the first table leg 30, and the second table leg 60 can rotate relative to each other, thereby adjusting the height and angle of the tabletop 10 relative to the ground. In addition, when the first fastener 81 and the second fastener 82 are released, the tabletop 10 can be rotated to be perpendicular to the ground and the angle between the first table leg 30 and the second table leg 60 can be reduced to save space occupied during storage.

[0023] 10: Tabletop 20: Fixing part 21: Adjustment groove 30: First table leg 31: Perforation 32: Positioning component 33: Elastic component 35B: Secondary support groove 40: Support rod 41B: Secondary support rod 50: Supporting parts 60: Second table leg 61: Positioning groove 62B: Secondary support plate 63B: Substitute Abutment 70: Wheel 81: First Lock Firmware 82: Second Locking Fitting 10A: Chair board 11A: Connecting part 12A: Chair back

Claims

1. An adjustable folding table, comprising: a tabletop; a fixing part fixed to the bottom surface of the tabletop; the fixing part having: an adjustment groove extending through the fixing part; the extension direction of the adjustment groove being parallel to the extension direction of the tabletop; a first table leg pivotally mounted on the fixing part and spaced apart from the tabletop; the first table leg having: a through hole opening towards the bottom surface of the tabletop; a support rod, one end of which is pivotally mounted on the first table leg and the other end of which is disposed in the adjustment groove and movable along the adjustment groove; a stopper movably disposed in the through hole of the first table leg and abutting against the bottom surface of the tabletop; a second table leg pivotally mounted on the first table leg; a first locking fastener passing through the first table leg and the fixing part; when the first locking fastener is locked, the relative position and angle between the first table leg and the fixing part are fixed; A second locking fastener is inserted through the first table leg and the second table leg; when the second locking fastener is tightened, the relative position and angle of the first table leg and the second table leg are fixed; wherein, When the first locking fastener is released, the first table leg can rotate relative to the fixed part; when the second locking fastener is released, the first table leg and the second table leg can rotate relative to each other. This allows the tabletop to move or rotate relative to the ground.

2. The adjustable folding table as described in claim 1, wherein, The first locking device is a screw, bolt, or screw handle.

3. The adjustable folding table as described in claim 1, wherein, The second locking device is a screw, bolt, or screw handle.

4. The adjustable folding table as described in claim 1, wherein, The abutment is a bolt.

5. The adjustable folding table as described in claim 1, wherein, The adjustment groove includes: a plurality of circular holes spaced apart; a plurality of elongated holes arranged alternately and connected to form the adjustment groove; when the support rod is located in the circular hole, the support rod can rotate relative to the fixed part.

6. The adjustable folding table as described in claim 1, wherein: The second table leg has: a positioning groove formed through the second table leg at one end near the first table leg; the positioning groove extends in an arc shape with the second locking fastener as the axis; the first table leg has: a positioning member movably disposed in the positioning groove; and an elastic member connected to the positioning member and causing the positioning member to tend to move toward the second table leg, thereby enabling the positioning member to engage in the positioning groove.

7. An adjustable folding table as described in any one of claims 1 to 6, wherein, The adjustable folding table has a plurality of wheels, which are respectively disposed at the bottom ends of the first table leg and the second table leg.

8. An adjustable folding table as described in any one of claims 1 to 6, wherein: The first table leg has: a support groove formed through the first table leg; The extension direction of the secondary support groove is parallel to the extension direction of the first table leg; the second table leg has: a secondary support plate pivotally mounted on the second table leg; a secondary abutment member passing through the second table leg and abutting against one end of the secondary support plate; the adjustable folding table has: a secondary support rod, one end of which is pivotally mounted on the other end of the secondary support plate, and the other end is disposed in the secondary support groove and can move along the secondary support groove.

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