TWI899029B - Improved linkage sliding door - Google Patents

Abstract

An improved linkage sliding door includes an upper track, a first door panel, a second door panel, a third panel, a gear, a first gear rack, a second gear rack and at least one positioning roller. The upper ends of the first, second, and third door panels are mounted on the upper track. The gear is pivotally disposed at the upper end of the second door panel. The first and second gear racks are respectively fixed to the upper ends of the first and third door panels. The gear meshes with both the first and second gear racks, forming a linkage mechanism that enables a synchronized movement of multiple door panels. The positioning roller is disposed at the upper end of the third door panel, and is contact with an inner sidewall of the upper track. As the positioning roller rolls along the inner sidewall, it guides the third door panel to move smoothly and stably, preventing swaying, shaking, or gear skipping, so as to ensure that the door panels operate in a stable and smooth manner.

Description

Improved linked sliding door

The present invention relates to a linked sliding door, in particular to an improved frameless linked sliding door.

Linked sliding doors can be used in devices such as shower doors. Existing linked sliding doors already have a multi-door linkage function. When the user pushes one door panel, the linkage mechanism activates the other door panels. Existing linkage mechanisms are constructed using gears and racks. While these gears work precisely together, they can easily cause the door panels to wobble, rock, and even cause teeth to jump, making movement less smooth.

The technical problem to be solved by the present invention is to provide an improved linked sliding door to address the shortcomings of the existing technology. It can assist in the positioning of the door panel without causing deflection, shaking, or tooth jumping problems, so that the door panel can move stably and smoothly.

To solve the above-mentioned technical problems, the present invention provides an improved linked sliding door, comprising: an upper rail having a first groove, a second groove, and a third groove; a first door panel, the upper end of the first door panel being disposed in the first groove; a second door panel, the upper end of the second door panel being provided with at least one first pulley, the at least one first pulley being slidably engaged in the second groove; and a third door panel, the upper end of the third door panel being provided with at least one second pulley, the at least one second pulley being slidably engaged in the third groove. a gear pivotally disposed at the upper end of the second door panel; a first gear fixed to the upper end of the first door panel; a second gear fixed to the upper end of the third door panel, the gear engaging with the first gear and the second gear to form a linkage mechanism; and at least one positioning roller disposed at the upper end of the third door panel, the at least one positioning roller contacting an inner side wall of the upper rail, the positioning roller being capable of rolling on the inner side wall of the upper rail.

The present invention provides an improved linked sliding door comprising an upper track, a first door panel, a second door panel, a third door panel, a gear, a first gear, a second gear, and at least one positioning roller. The upper ends of the first, second, and third door panels are mounted on the upper track, the gear is pivoted on the upper end of the second door panel, and the first and second gears are fixed to the upper ends of the first and third door panels, respectively. The gear engages with the first and second gears to form a linkage mechanism, thereby achieving the function of linking multiple doors. The positioning roller is located at the upper end of the third door panel and contacts the inner wall of the upper rail. The positioning roller can roll on the inner wall of the upper rail to guide the stable movement of the third door panel, so that the third door panel will not deflect or shake. The gear, first gear and second gear are tightly engaged to prevent tooth jumping, so that the door panel can move stably and smoothly.

To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only used for reference and description and are not used to limit the present invention.

The following is an explanation of the relevant embodiments disclosed in the present invention through specific concrete embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments. The details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. Please note in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention. In addition, the term "or" used in this article may include any one or more combinations of the related listed items depending on the actual circumstances.

[Example]

Referring to Figures 1 to 6 , the present invention provides an improved linked sliding door, comprising an upper rail 1, a first door panel 2, a second door panel 3, a third door panel 4, a gear 5, a first gear 6, a second gear 7, and at least one positioning roller 30.

The upper rail 1 can be an extruded aluminum structure, but is not limited thereto. The upper rail 1 can be appropriately fixed to a building. The upper rail 1 has a first groove 11, a second groove 12, and a third groove 13 (as shown in Figures 3 and 5). The first groove 11, the second groove 12, and the third groove 13 extend along the length of the upper rail 1, and the second groove 12 is located between the first groove 11 and the third groove 13. The first groove 11, the second groove 12, and the third groove 13 can be pulley grooves, fixed grooves, etc. In this embodiment, the first groove 11 is a fixed groove, and the second groove 12 and the third groove 13 are pulley grooves.

The first door panel 2, the second door panel 3 and the third door panel 4 are arranged on the upper rail 1, and the second door panel 3 is located between the first door panel 2 and the third door panel 4. In this embodiment, the first door panel 2 is a fixed door panel, the upper end of the first door panel 2 is arranged in the first groove 11, and the first door panel 2 is fixed. At least one first pulley 31 is provided at the upper end of the second door panel 3, and the first pulley 31 slides in the second groove 12. The first pulley 31 can move in the second groove 12 to drive the second door panel 3 to move (left or right). At least one second pulley 41 is provided at the upper end of the third door panel 4, and the second pulley 41 slides in the third groove 13. The second pulley 41 can move in the third groove 13 to drive the third door panel 4 to move (left or right). The second door panel 3 and the third door panel 4 can move on the upper track 1 (left and right), so that the improved linked sliding door can be opened and closed.

In this embodiment, the upper rail 1 is provided with two first rails 14, and the two first rails 14 are close to the bottom of the two sides of the second groove 12. The two first rails 14 extend along the length direction of the upper rail 1, and the outer edge ring of the first pulley 31 is provided with two first grooves 32. The two first grooves 32 are respectively matched with the two first rails 14. The first grooves 32 can use the first rails 14 to guide the movement (left and right movement) and can produce a limiting effect to prevent the first pulley 31 from shaking forward and backward in the second groove 12.

In this embodiment, the upper rail 1 is provided with two second rails 15, and the two second rails 15 are close to the bottom of the two sides of the third groove 13. The two second rails 15 extend along the length direction of the upper rail 1, and the outer edge ring of the second pulley 41 is provided with two second grooves 42. The two second grooves 42 are respectively matched with the two second rails 15. The second grooves 42 can use the second rails 15 to guide the movement (left and right movement) and can produce a limiting effect to prevent the second pulley 41 from shaking back and forth in the third groove 13.

In this embodiment, a fixing mechanism 70 can be provided at each end of the upper rail 1 (as shown in Figures 9 and 10). Each fixing mechanism 70 includes a fixing base 701 and two snap-on pieces 702. The two snap-on pieces 702 are respectively pivoted to the fixing base 701 by a pivot 704, so that the fixing base 701 and the snap-on pieces 702 can rotate relative to each other. The fixing base 701 can be fixed to an installation location such as a wall by means of screw locking or the like. Each snap-on piece 702 is provided with a slot 703 on each side. The two snap-on pieces 702 are disposed in the second groove 12 and the third groove 13, respectively. The slots 703 of the two snap-on pieces 702 can interlock with the first and second rails 14, 15, respectively. The first and second rails 14, 15 can be sandwiched between the two snap-on pieces 702 and the fixing base 701, respectively, so that the two ends of the upper rail 1 can be fixed in the installation position using the fixing mechanism 70. The fixing base 701 and the snap-on piece 702 can rotate relative to each other, and the two snap-on pieces 702 can move in the second and third grooves 12, 13, allowing fine-tuning of the upper rail 1 to adjust to the slope of the wall, thereby facilitating installation.

In this embodiment, a connector 33 is provided at the lower end of the first pulley 31 (as shown in Figures 3 and 5). The upper end of the second door panel 3 is fixed to the connector 33 by a locking member 34. The locking member 34 can be an eccentric screw, etc., so that the horizontal height of the second door panel 3 can be adjusted by rotating the locking member 34 (eccentric screw). Similarly, a connector 33 can be provided at the lower end of the second pulley 41. The upper end of the third door panel 4 is fixed to the connector 33 by a locking member 34 (eccentric screw), so that the horizontal height of the third door panel 4 can be adjusted by rotating the locking member 34 (eccentric screw).

Gear 5 is pivoted at the upper end of second door panel 3. First and second racks 6 and 7 are fixed to the upper ends of first and third door panels 2 and 4, respectively. First rack 6 extends to an appropriate length. In this embodiment, a first base 21 and a second base 43 are respectively disposed at the upper ends of first and third door panels 2 and 4. First base 21 can be molded onto upper rail 1. First and second racks 6 and 7 are respectively fixed to first and second bases 21 and 43. The first and second gears 6 and 7 are arranged horizontally. Gear 5 engages with these two gears, with gear 5 positioned between them. Opposite sides of gear 5 engage with the first and second gears 6 and 7, respectively, forming a linkage mechanism. When the third door panel 4 is pulled, the second door panel 3 is moved in conjunction with gear 5, the first and second gears 6 and 7, achieving a two-door linkage. If the first door panel 2 is movable, a three-door linkage can also be achieved. However, a three-door linkage mechanism typically secures the first or third door panel 2, 4, by magnetic attraction, etc., but this is not a limitation.

The positioning roller 30 is mounted on the upper end of the third door panel 4. The positioning roller 30 can be pivoted on the upper end of the third door panel 4 using a rotating shaft 301. One or more positioning rollers 30 can be mounted on the upper end of the third door panel 4. The rotating shaft 301 can be positioned vertically, allowing the positioning roller 30 to be positioned horizontally, thereby providing a stable rolling guide effect. The positioning roller 30 contacts an inner side wall 17 of the upper rail 1, so that when the third door panel 4 moves, the positioning roller 30 can roll on the inner side wall 17 of the upper rail 1, thereby guiding the third door panel 4 to move stably, so that the third door panel 4 will not deflect or shake, and the gear 5, the first gear 6 and the second gear 7 can be tightly engaged without tooth jumping.

In another embodiment, the first door panel 2 can also be a movable door panel, so that the first door panel 2 can move on the upper rail 1 (left or right). Similarly, a positioning roller (not shown) can be set at the upper end of the first door panel 2, so that the positioning roller contacts the other inner wall of the upper rail 1, so that when the first door panel 2 moves, the positioning roller 30 can roll on the other inner wall of the upper rail 1, thereby guiding the first door panel 2 to move stably.

In this embodiment, a connecting member 33 is also provided at the lower end of the second pulley 41, and the upper end of the third door panel 4 is fixed to the connecting member 33. A connecting rod 40 is provided between the connecting member 33 and the second pulley 41 (as shown in Figures 7 and 8). The positioning roller 30 can be pivoted on the connecting rod 40 using the rotating shaft 301, so that the positioning roller 30 can be pivoted at the upper end of the third door panel 4, so that the second pulley 41, the third door panel 4 and the positioning roller 30 can be more stably combined through the connecting rod 40.

The improved linked sliding door of the present invention may further include a first stopper 8, a second stopper 9, a first channel-shaped member 10, and a second channel-shaped member 20. In this embodiment, the first stopper 8 can be secured to the lower end of the first door panel 2 by screws or other means. The first stopper 8 extends toward the second door panel 3 to form a first protrusion 81 (as shown in FIG. 4 ). In this embodiment, the first stopper 8 may have an L-shaped cross-section and include a first fixing portion 82 fixed to a surface of the first door panel 2 near its lower end. The first protrusion 81 is formed by the lower end of the first fixing portion 82 extending horizontally and upwardly, forming a vertical position.

The second stopper 9 can be secured to the lower end of the second door panel 3 using screws or other means. The second stopper 9 extends toward the third door panel 4 to form a second protrusion 91 (as shown in FIG. 4 ). In this embodiment, the second stopper 9 can be L-shaped in cross section and has a second fixing portion 92 fixed to a surface of the second door panel 3 near the lower end. The second protrusion 91 is formed by the lower end of the second fixing portion 92 extending horizontally and upwardly, forming a vertical position.

The first channel member 10 can be fixed to the lower end of the second door panel 3 by means of a snap connection or screw fastening. The first channel member 10 has a first limiting groove 101. In this embodiment, the first channel member 10 can have an H-shaped cross-section. The first channel member 10 has a third fixing portion 102, which is fixed to the lower end of the second door panel 3. The first limiting groove 101 is located below the third fixing portion 102. The first protrusion 81 of the first limiting member 8 is inserted into the first limiting groove 101 of the first channel member 10. The cooperation between the first protrusion 81 and the first limiting groove 101 can guide and limit the movement of the second door panel 3, thereby preventing forward and backward rocking between the first door panel 2 and the second door panel 3. This ensures that the first door panel 2 and the second door panel 3 are accurately positioned, without rocking, and with smoother movement. Preferably, the first groove-shaped member 10 may be provided with a plurality of first ribs 103, which are located in the first limiting groove 101, and which extend toward the first protrusion 81. The first ribs 103 are close to the first protrusion 81. The first ribs 103 may provide a limiting effect to avoid forward and backward shaking between the first door panel 2 and the second door panel 3, and may also reduce dust and the like from entering the first limiting groove 101, and have a noise reduction function.

The second channel member 20 can be secured to the lower end of the third door panel 4 by means of a snap connection or screw fastening. The second channel member 20 has a second limiting groove 201. In this embodiment, the second channel member 20 can have an H-shaped cross-section. The second channel member 20 has a fourth fixing portion 202, which is fixed to the lower end of the third door panel 4. The second limiting groove 201 is located below the fourth fixing portion 202. The second protrusion 91 of the second limiting member 9 is inserted into the second limiting groove 201 of the second channel member 20. The cooperation between the second protrusion 91 and the second limiting groove 201 can guide and limit the movement of the second door panel 3 and the third door panel 4, thereby preventing forward and backward rocking between the second door panel 3 and the third door panel 4, ensuring accurate positioning between the second door panel 3 and the third door panel 4 and smoother movement. Preferably, the second groove-shaped member 20 may be provided with a plurality of second ribs 203, which are located in the second limiting groove 201, and which extend toward the second protrusion 91. The second ribs 203 are close to the second protrusion 91. The second ribs 203 can provide a limiting effect to avoid forward and backward shaking between the second door panel 3 and the third door panel 4, and can also reduce dust and the like from entering the second limiting groove 201, and have a noise reduction function.

In this embodiment, the first stopper 8 can be fixed to the lower end of the first door panel 2 by at least one first eccentric screw 50. The first stopper 8 can be adjusted in height by rotating the first eccentric screw 50, thereby allowing the first stopper 8 to be adjusted in height and achieving an optimal fit between the first protrusion 81 and the first stopper groove 101. The second stopper 9 can be fixed to the lower end of the second door panel 3 by at least one second eccentric screw 60. The second stopper 9 can be adjusted in height by rotating the second eccentric screw 60, thereby allowing the second stopper 9 to be adjusted in height and achieving an optimal fit between the second protrusion 91 and the second stopper groove 201.

[Beneficial Effects of the Embodiments]

The present invention provides an improved linked sliding door comprising an upper track, a first door panel, a second door panel, a third door panel, a gear, a first gear, a second gear, and at least one positioning roller. The upper ends of the first, second, and third door panels are mounted on the upper track, the gear is pivoted on the upper end of the second door panel, and the first and second gears are fixed to the upper ends of the first and third door panels, respectively. The gear engages with the first and second gears to form a linkage mechanism, thereby achieving the function of linking multiple doors. The positioning roller is located at the upper end of the third door panel and contacts the inner wall of the upper rail. The positioning roller can roll on the inner wall of the upper rail to guide the stable movement of the third door panel, so that the third door panel will not deflect or shake. The gear, first gear and second gear are tightly engaged to prevent tooth jumping, so that the door panel can move stably and smoothly.

The contents disclosed above are merely preferred feasible embodiments of the present invention and do not limit the scope of the patent application of the present invention. Therefore, any equivalent technical changes made by using the contents of the description and drawings of the present invention are included in the scope of the patent application of the present invention.

1: Upper rail 11: First groove 12: Second groove 13: Third groove 14: First cam 15: Second cam 17: Inner wall 2: First door panel 21: First base 3: Second door panel 31: First pulley 32: First groove 33: Connector 34: Locking member 4: Third door panel 41: Second pulley 42: Second groove 43: Second base 5: Gear 6: First gear 7: Second gear 8: First stopper 81: First protrusion 82: First fixing portion 9: Second Limiting member 91: Second protrusion 92: Second fixing portion 10: First groove member 101: First limiting groove 102: Third fixing portion 103: First rib 20: Second groove member 201: Second limiting groove 202: Fourth fixing portion 203: Second rib 30: Positioning roller 301: Rotating axis 40: Connecting rod 50: First eccentric screw 60: Second eccentric screw 70: Fixing mechanism 701: Fixing seat 702: Snap plate 703: Slot 704: Pivot member

FIG1 is a perspective view of the improved linked sliding door according to an embodiment of the present invention.

FIG2 is a side view of the improved linked sliding door according to an embodiment of the present invention.

Figure 3 is a detailed diagram of Part III of Figure 2.

Figure 4 is a detailed diagram of Part IV of Figure 2.

FIG5 is a cross-sectional view taken along line V-V in FIG1 .

FIG6 is a VI-VI cross-sectional view of FIG1 .

FIG7 is a three-dimensional exploded view of the partial structure of the improved linked sliding door according to an embodiment of the present invention (I).

FIG8 is a three-dimensional exploded view (II) of the partial structure of the improved linked sliding door according to an embodiment of the present invention.

FIG9 is a three-dimensional exploded view of the local structure of the upper track according to an embodiment of the present invention.

Figure 10 is a detailed diagram of part X of Figure 1.

1: On track

11: First Groove

12: Second groove

13: Third Groove

14: First cam

15: Second cam

17: Medial wall

2: First door panel

21: The First Body

3: Second door panel

31: First pulley

32: First groove

33: Connectors

34: Lock Firmware

4: Third door panel

41: Second pulley

42: Second groove

43: Second seat

5: Gear

6: First tooth

7: Second tooth

30: Positioning roller

301: Rotating axis

Claims (9)

An improved linked sliding door comprises: an upper rail having a first groove, a second groove, and a third groove; a first door panel, the upper end of the first door panel being disposed in the first groove; a second door panel, the upper end of the second door panel having at least one first pulley disposed thereon, the at least one first pulley slidably engaged in the second groove; a third door panel, the upper end of the third door panel having at least one second pulley disposed thereon, the at least one second pulley slidably engaged in the third groove; a gear pivotally mounted at the upper end of the second door panel; and a first rack fixed to the upper end of the first door panel. a second gear, the second gear is fixed at the upper end of the third door panel, the gear is engaged with the first gear and the second gear to form a linkage mechanism; and at least one positioning roller, the at least one positioning roller is arranged at the upper end of the third door panel, the at least one positioning roller contacts an inner wall of the upper rail, and the positioning roller can roll on the inner wall of the upper rail; wherein a connecting member is provided at the lower end of the second pulley, the upper end of the third door panel is fixed to the connecting member, a connecting rod is provided between the connecting member and the second pulley, and the positioning roller is pivoted on the connecting rod with a rotating axis. As described in claim 1, the improved linked sliding door, wherein the at least one positioning roller is pivoted at the upper end of the third door panel with a rotating shaft, the rotating shaft is vertically arranged, and the positioning roller is horizontally arranged. The improved linked sliding door as described in claim 1 further includes a first limiting member, a second limiting member, a first groove-shaped member and a second groove-shaped member, the first limiting member is fixed at the lower end of the first door panel, the first limiting member extends toward the second door panel to form a first convex portion, the second limiting member is fixed at the lower end of the second door panel, the second limiting member extends toward the third door panel to form a second convex portion, the first groove-shaped member is fixed at the lower end of the second door panel, the first groove-shaped member has a first limiting groove, the first convex portion of the first limiting member is inserted into the first limiting groove of the first groove-shaped member to guide and limit the movement of the second door panel, the second groove-shaped member is fixed at the lower end of the third door panel, the second groove-shaped member has a second limiting groove, the second convex portion of the second limiting member is inserted into the second limiting groove of the second groove-shaped member to guide and limit the movement of the second door panel and the third door panel. An improved linked sliding door as described in claim 3, wherein the first groove-shaped member is provided with a plurality of first ribs, the first ribs are located in the first limiting groove, the first ribs extend toward the first protrusion, and the first ribs are close to the first protrusion. An improved linked sliding door as described in claim 3, wherein the second groove-shaped member is provided with a plurality of second ribs, the second ribs are located in the second limiting grooves, the second ribs extend toward the second protrusion, and the second ribs are close to the second protrusion. As described in claim 3, the improved linked sliding door, wherein the first limiting member can be fixed to the lower end of the first door panel by at least one first eccentric screw, and the height position of the first limiting member can be adjusted by rotating the at least one first eccentric screw. As described in claim 3, the improved linked sliding door, wherein the second limiting member can be fixed to the lower end of the second door panel by at least one second eccentric screw, and the height position of the second limiting member can be adjusted by rotating the at least one second eccentric screw. An improved linked sliding door as described in claim 1, wherein the upper rail is provided with two first rails, the two first rails are close to the bottom of both sides of the second groove, the two first rails extend along the length direction of the upper rail, the outer edge ring of the at least one first pulley is provided with two first grooves, the two first grooves are respectively matched with the two first rails, the upper rail is provided with two second rails, the two second rails are close to the bottom of both sides of the third groove, the two second rails extend along the length direction of the upper rail, and the outer edge ring of the at least one second pulley is provided with two second grooves, the two second grooves are respectively matched with the two second rails. As described in claim 8, the improved linked sliding door, wherein a fixing mechanism is provided at each end of the upper rail, each of the fixing mechanisms includes a fixing seat and two snap-in plates, the two snap-in plates are respectively connected to the fixing seat by a pivot piece, so that the two snap-in plates and the fixing seat can rotate relative to each other, and a slot is provided on each side of the two snap-in plates, the two snap-in plates are respectively provided in the second groove and the third groove, the slots of the two snap-in plates are respectively snapped with the two first protrusions and the two second protrusions, and the two first protrusions and the two second protrusions are respectively sandwiched between the two snap-in plates and the fixing seat.