Lift door moving device

Abstract

A lifting door moving device comprising a container which can be attached to the frame of a piece of furniture, in particular to one of the side edges of the frame, the interior of the container comprising a mechanism which is hinged to the container directly or indirectly via an arm around a fulcrum pin on the door, the fulcrum pin being integral with a cam which can cooperate with an element of a sliding plate which is slidably housed in the container; a spring acting between the container and the sliding plate in a direction opposite to the element, the action of the cam and of at least one spring balancing the weight of the door in each position during opening and closing, an arc-shaped seat being provided in the container, arranged around a fulcrum seat for housing the fulcrum pin with the axis (r) of the fulcrum pin as centre, the profile of an arc-shaped plate being provided in correspondence with the curved profile of the arc-shaped seat, the arc-shaped plate being driven by the cam so as to move along the profile of the arc-shaped seat in the last phase of rotation of the arm, the arc-shaped plate compressing a damper when the door is closed, so as to produce damping of the door.

Description

Technical Field

[0001] This invention relates to a lifting door moving device, applicable to the doors of kitchen, bathroom, living room furniture or any general furniture. Background Technology

[0002] Currently, the moving device of the lifting door is understood to be any of the following examples:

[0003] - Flip-up opening: The door hinges to the top of the furniture or item, such as... Figure 1a As shown;

[0004] -Vertical opening: The door slides vertically, such as... Figure 1b As shown;

[0005] - Pivot opening: The door rotates and moves vertically, such as Figure 1c As shown;

[0006] -Combined opening: A pair of doors rotate and slide vertically together, such as... Figure 1d As shown.

[0007] Various devices are used to move the doors of the different types of furniture cabinets mentioned above. During the opening of the door, these devices can balance the weight generated at each position due to the user's operation, and prevent the door from being in a fully open (or fully closed) position when operation is interrupted.

[0008] Embodiments of similar devices are disclosed in EP1507944B1, EP2821578B1, and DE202005020862U1.

[0009] Besides the undeniable ergonomic advantage of not requiring users to close the door from the fully open position, these devices also feature perfect weight balance in any position. Therefore, the user experiences virtually no weight, making it lightweight and easy to use.

[0010] The drawback of the aforementioned mechanical device that meets this requirement is its large overall size within the storage compartment, thus occupying valuable space for efficient furniture use. This is primarily due to the need for elastic elements to guide and retain within the seat to generate energy for balancing the weight of the door.

[0011] In the prior art, these devices, in addition to having a specific housing for accommodating the resilient element, also have a container configured to accommodate device components, and therefore include the housing itself. Given the need to accommodate the device, the ideal situation is, of course, that the device container itself serves as a guide and container for the resilient element that opens the door.

[0012] As furniture design continues to evolve, the trend is increasingly toward concealing the mechanisms needed for sliding doors, and clearly, a device that can be completely or partially hidden on the side meets this need. Summary of the Invention

[0013] The purpose of this invention is to provide a lifting door moving device that eliminates the disadvantages of the mechanisms disclosed in the prior art.

[0014] More specifically, one object of the present invention is to provide a lifting door moving device that has a smaller overall thickness dimension, thereby occupying only a minimal space inside an item such as furniture, and thus being almost hidden in the interior side.

[0015] Another object of the present invention is to provide a lifting door moving device that ensures the weight balance of the door at each position when it is opened and closed, avoids sudden jerking during opening, and provides a cushioning effect during closing.

[0016] Another object of the present invention is to provide a lifting door moving device that is simple to manufacture and inexpensive, and easy to assemble and install.

[0017] Another object of the present invention is to provide a lifting door moving device that can be used for all types of doors mentioned above: upward opening, vertical opening, pivot opening, and combined opening.

[0018] Basically, the lifting door moving device of the present invention is applied to the door of kitchen, bathroom, living room furniture or any general furniture, including a container that can be attached to the frame of the furniture, particularly to one side of the frame. The container includes a mechanism that is directly or indirectly hinged to the container by an arm around a pivot pin on the door, wherein the pivot pin is integrally provided with a cam that can cooperate with an element of a sliding plate that is slidably accommodated in the container. Under the action of at least one spring, the spring acts between the container and the sliding plate in the opposite direction to the element. During the opening and closing of the door, the action of the cam and at least one spring balances the weight of the door at each position. An arc-shaped seat is provided inside the container, the arc-shaped seat being arranged around the pivot pin's axis (r) for accommodating the pivot pin. The contour of the arc-shaped plate corresponds to the curved contour of the arc-shaped seat. In the final stage of the arm rotation, the arc-shaped plate is driven by the cam to move along the contour of the arc-shaped seat. When the door is closed, the arc-shaped plate compresses a damper, thereby damping the door. Attached Figure Description

[0019] Further features of the invention will become clearer from the following detailed description, with reference purely to one embodiment of which is illustrated in the accompanying drawings by way of non-limiting example, wherein:

[0020] Figures 1a-1d Various types of lifting doors to which the lifting door moving device of the present invention can be applied are schematically shown;

[0021] Figure 2 This is a partial axonometric view of a piece of furniture with combined doors, in which some parts are hidden and some parts are shown in a transparent form. The furniture is equipped with the lifting door moving device described in this invention in the state when the door is open.

[0022] Figure 3 for Figure 2 A side sectional view of the furniture;

[0023] Figure 4 This is a plan view of the container of the lifting door moving device of the present invention. At this time, during the opening or closing phase, the door leaf moving arm is in the middle position, and the cover is hidden here.

[0024] Figure 5 This is an exploded isometric view of the components of the lifting door moving device of the present invention;

[0025] Figure 6 yes Figure 5 An exploded view of the sliding plate in the diagram;

[0026] Figure 6a , Figure 6b and Figure 6c They are Figure 6 Top view, front view and left view of the assembled sliding plate;

[0027] Figure 7 yes Figure 5 An exploded isometric view of the pivot point of the articulated arm shown.

[0028] Figure 7a , Figure 7b and Figure 7c They are Figure 7 Top view, front view, and left view of the pivot structure in the image;

[0029] Figure 8 , Figure 9 , Figure 10 and Figure 11 yes Figure 4 The plan view is shown, but the hinge arms are hidden. The positions of each component are shown in each of the successive stages from the fully open state to the fully closed state.

[0030] Figure label:

[0031] 1. Furniture; 2. Lower shelf; 3. Upper shelf; 4. Side; 5. Back wall; 6. Door; 6a. Upper half door; 6b. Lower half door; 7. Linkage mechanism; 10. Container; 10'. Base; 10". Lid; 11. Arc profile; 12. Through hole; 12'. Recess; 13. Pivot pin; 13'. First part; 13". Second part; 14. Cam; 15. Longitudinal guide rail; 16. Fixed seat; 17. First stop; 19. Arc seat; 20. Arm; 24. Pivot seat; 30. Sliding plate; 30', 30". Plate; 31. Window; 32. Horizontal side; 33. First vertical side; 34, Second vertical side; 35, Roller; 37, Fixing pin; 38', 38", Side plane; 40, Spring; 41, Second stop; 42, Screw; 43, Sliding element; 44, Toothed head; 50, Arc plate; 52, Damper; 53, Receiving seat; 54, Lower groove; 54', 54", Groove; 55, Stop element; 56, Guide rod; 57', 57", Spacer boss; 58', 58", Hole; 60, Eccentric pin; 61, Cylindrical shaft; 62, Cross groove; 63, Shaft hole; 63', Small shaft; 100, Lifting door moving device. Detailed Implementation

[0032] exist Figure 2 and Figure 3 In this paper, by way of example only, the lifting door moving device 100 of the present invention is applied to a door with... Figure 1d Furniture featuring folding lift doors of the type shown can be understood to be used to move doors with different lifting modes without substantial modification, such as... Figures 1a-1c As shown.

[0033] refer to Figure 2 and Figure 3 The illustration shows a piece of furniture 1, generally indicated by reference numeral 1, comprising a fixed frame consisting of a lower wall or lower shelf 2, an upper wall or upper shelf 3, and two side walls or sides 4. One side wall is concealed to showcase the lifting door moving device 100 of the present invention, indicated by reference numeral 100. In some embodiments, furniture 1 also includes a rear wall 5. A door 6 is located at the front of furniture 1. In this example, door 6 is divided into two halves, an upper half door 6a and a lower half door 6b. The upper half door 6a is pivotally connected to the upper shelf 3 of furniture 1, and the two halves are hinged to each other by means of a linkage mechanism 7. The overall design is essentially prior art and therefore will not be described further.

[0034] The lifting door moving device 100 of the present invention, in Figures 4 to 11 As can be seen more clearly, it is used to balance the weight of the door 6 in any position during the opening and closing action, and includes a box-shaped container 10 that acts on the door 6 via the arm 20, is hinged to the linkage mechanism 7, or acts directly on the door 6.

[0035] The container 10 is fixed to the frame of the furniture 1, in this case, to the side wall or side 4, and includes two shape-fitting half-shells, one of which is substantially the same as the other, referred to as the base 10' and the lid 10" respectively for convenience. Various components of the mechanism are housed between the base 10' and the lid 10" and the arm 20 is pivotally connected to the base 10' and the lid 10".

[0036] In particular, such as Figure 4 As shown, arm 20 is integrally formed with pivot pin 13 and installed between the half-shells so that it can rotate freely relative to the half-shells. A shaped cam 14 is integrally formed with pivot pin 13, which can withstand the force required to support door 6, as will be explained in more detail below.

[0037] refer to Figure 5 An exploded view shows a rectangular sliding plate 30 between the base 10' and the cover 10" with a large window 31 defined by two longer horizontal sides 32 and two shorter vertical sides (see reference). Figure 4 The two longer horizontal sides 32 are slidably accommodated in the corresponding longitudinal guide rails 15 of the container 10, and when viewed from the front of the furniture 1, the two shorter vertical sides are the first vertical side 33 and the second vertical side 34, respectively, and are respectively located on the rear and front sides of the container 10.

[0038] A roller 35 is mounted on the second vertical side 34 of the sliding plate 30. It is integrally set with the profile of the cam 14 and interacts with the pivot pin 13, which will be described in more detail below.

[0039] A pair of springs 40 are disposed in the window 31 of the sliding plate 30 and are housed in corresponding fixing seats 16 formed inside the two half-shells 10' and 10"

[0040] One end of the spring 40 acts on the first stop 17 disposed in the half shell. The first stop 17 is disposed at the front end of the fixed base 16, where an assembly for adjusting the spring preload is provided. The other side of the spring 40 acts on the first vertical side 33 of the sliding plate 30 through the second stop 41.

[0041] The assembly for adjusting the spring preload includes a screw 42 disposed on each spring and acting on and screwed into the sliding element 43. The screw 42 is axially fixed between the two halves and has a toothed head 44, allowing adjustment using a standard Phillips screwdriver aligned with the axis of rotation of the screw 42. Rotation of the screw 42 causes the sliding element 43 to translate, thereby adjusting the preload of the corresponding spring 40.

[0042] Spring 40 acts between the fixed first stop 17 and second stop 41. The second stop 41 is integrally formed with the sliding plate 30. As described above, the sliding plate 30 translates in two directions along the longitudinal guide rail 15, causing the spring 40 to compress / stretch.

[0043] During the rotation of arm 20, cam 14 of pivot pin 13 slides along roller 35 and slides along longitudinal guide rail 15 via sliding plate 30 under the action of spring 40, transmitting a torque to arm 20 that varies with the position of cam 14.

[0044] The profile of cam 14 is configured so that door 6 can maintain perfect balance at any position along the opening arc, so that if the user's action is interrupted, door 6 can remain balanced and not move until the user continues to open door 6, at which point door 6 continues its journey. The same applies during the closing phase of door 6.

[0045] Opposing arc-shaped seats 19 are provided within the base 10' and the cover 10". Figure 5 Only one can be seen in the middle. Figure 6 (See the middle part) The arc-shaped seat 19 is arranged around the fulcrum seat 24 of the fulcrum pin 13 with the axis (r) of the fulcrum pin 13 as the center, and the outline of the arc-shaped plate 50 is set to correspond to the curved outline of the arc-shaped seat 19.

[0046] These arc-shaped plates 50 clamp the sliding plate 30 and are driven by the cam 14 along the contour of the arc-shaped seat 19 during the rotation of the arm 20.

[0047] In the final stage of closing the door 6, the arc plate 50, through the stop element 55 which slides parallel to the longitudinal axis (s) of the lifting door moving device 100, compresses the damper 52 located between the opposing receiving seats 53 of the base 10' and the cover 10" and in the lower groove 54 below or above the sliding plate 30, and acts on the guide rod 56, thereby damping the door 6.

[0048] refer to Figure 6 , Figures 6a-6c The specific embodiments of the sliding plate 30 are described in more detail.

[0049] The sliding plate 30 consists of two identical plates 30' and 30" which are substantially symmetrical with respect to the longitudinal axis (s). The two plates 30' and 30" are provided with: grooves 54' and 54" to form the lower groove 54 of the sliding plate 30, which is used to accommodate the damper 52; spaced bosses 57' and 57"; holes 58' and 58" to accommodate the fixing pin 37 supporting the roller 35; and side planes 38' and 38" which allow the roller 35 to rotate freely about the fixing pin 37 in a direction parallel to the axis (r).

[0050] refer to Figure 7 , Figures 7a-7c The illustration shows a specific embodiment of the pivot pin 13 and the cam 14 integrally disposed therewith.

[0051] The pivot pin 13 consists of two parts: the first part 13' is used to engage with the hinge arm 20 as a whole, and is described here as a square example; the second part 13" is cylindrical and is integrally set with the cam 14, and is used to be installed in the base 10' and the cover 10" so that it can rotate freely about the axis (r).

[0052] The cam 14 has an arcuate profile 11 that slides on the roller 35. The edge of the profile is at different distances from the axis (r), so that the spring 40 has a preset length, thereby transmitting the correct torque to the arm 20 to support the weight of the door 6 in different positions during the opening / closing movement.

[0053] The cam 14 has a through hole 12 on its wall. Each of the two sides of the through hole 12 has an eccentric recess 12'. Each recess 12' is provided with a cylindrical eccentric pin 60. The axis of the eccentric pin 60 is eccentric relative to the axis of rotation (e) of the cylindrical shaft 61 that is forcibly inserted into the through hole 12. In this way, the eccentric pin 60 cannot rotate freely, but can only rotate by the torque generated by the tool. For example, the tool can engage with the cross groove 62 on the eccentric pin 60 to drive the eccentric pin 60 to rotate.

[0054] A cylindrical shaft 61, which is provided on one of the two eccentric pins 60, has a shaft hole 63 with a polygonal cross section, which meshes with a small shaft 63' with the same cross section provided on the other eccentric pin 60.

[0055] The cylindrical eccentric pin 60 engages with the arcuate plate 50 during a portion of the closing movement of the door 6, thereby activating the damper 52 via the stop element 55. The eccentricity of the cylindrical eccentric pin 60 relative to the axis of rotation (e) allows it to engage with the arcuate plate 50 earlier or later, thus causing the damper 52 to act earlier or later.

[0056] See Figures 8 to 11 The working principle of the lifting door moving device 100 of the present invention during the closing movement of the door 6 is described below.

[0057] Figure 8 The lifting door moving device 100 is in the fully open position. The cam 14 interacts with the roller 35, causing the spring 40 to be in its maximum tension state.

[0058] After arm 20 rotates counterclockwise, further reference... Figure 9The diagram shows the intermediate position of the general closing process, in which the cam 14 is in different positions, causing the sliding plate 30 to be in different positions and the spring 40 to be in different tension states (beginning to be compressed), with the different tension states matching the weight of the door 6 in that particular position.

[0059] Figure 10 and Figure 11 The diagram shows the end in the closing phase when damper 52 is engaged, more specifically, Figure 10 A cam 14 is shown that brings the eccentric pin 60 into contact with the corresponding arcuate plate 50, which acts on the guide rod 56 of the damper 52 via a stop element 55.

[0060] At the start of the damping phase, damper 52 is fully stretched.

[0061] In the following Figure 11 In the middle, the closing process has been completed and the damper 52 has been fully compressed by the stop element 55.

[0062] It should be noted that in these figures, the eccentric pin 60 is in the maximum advance position of the damper 52. By acting on the eccentric pin 60, its action can be delayed, thereby reducing the compression on the damper 52 itself.

[0063] from Figure 11 When the state begins, opening door 6 will cause arm 20 to rotate clockwise, and the path of cam 14 will be the opposite of the previous path until it reaches... Figure 8 The state.

[0064] The lifting door moving device 100 of the present invention includes a base 10' and a cover 10" of a container 10, and plates 30' and 30" of a sliding plate 30. Its shape allows it to be installed on the left or right side of furniture without any difference, simply by rotating it 180° about its longitudinal axis and moving the position of some components, such as the damper 52 and the elements that drive the damper 52. The only part that needs to be replaced is the pivot pin 13 with the cam 14.

[0065] From the disclosed content, the advantages of the lifting door moving device 100 of the present invention are obvious. Unlike the prior art, where components are housed in a box and then in an external container, the components are directly housed in the container, which has an appropriate shape and serves as both a guide and container for the elastic element used to open the door. This significantly reduces the overall size of the device, allowing it to be concealed in the side of furniture.

[0066] In the above text, container 10 is described as being implemented in two half-shells, although theoretically it can be implemented with a single shell.

[0067] Of course, the present invention is not limited to the specific embodiments described above and shown in the accompanying drawings, but can be modified in many detailed ways to the extent that those skilled in the art can do so, without departing from the scope of protection of the present invention as defined in the appended claims.

Claims

1. A lifting door moving device (100) for use with doors (6) of kitchen, bathroom, and living room furniture, comprising a container (10) for attachment to the frame of the furniture, the container (10) containing a mechanism directly or indirectly hinged to the container (10) via an arm (20) surrounding a pivot pin (13) on the door (6), wherein, The pivot pin (13) is integrally formed with the cam (14), which can cooperate with the components of the sliding plate (30), which is slidably housed in the container (10). Under the action of at least one spring (40), the spring (40) acts between the container (10) and the sliding plate (30), and the direction of the spring (40) is opposite to that of the component. During the opening and closing of the door (6), the action of the cam (14) and at least one spring (40) balances the weight of the door (6) at each position. The container (10) is provided with an arc-shaped seat (19), which is arranged around the fulcrum seat (24) for accommodating the fulcrum pin (13) with the axis (r) of the fulcrum pin (13) as the center. The outline of the arc plate (50) is corresponding to the curved outline of the arc plate (19). In the final stage of the rotation of the arm (20), the arc plate (50) is driven by the cam (14) to move along the outline of the arc plate (19). When the door (6) is closed, the arc plate (50) compresses the damper (52), thereby causing the door (6) to be damped.

2. The lifting door moving device (100) according to claim 1, characterized in that, The damper (52) is housed in the receiving seat (53) of the container (10) and disposed in the lower groove (54) of the sliding plate (30).

3. The lifting door moving device (100) according to claim 1 or 2, characterized in that, The cam (14) has an eccentric pin (60) that engages with the arc plate (50) during the final stage of the rotation of the arm (20). By adjusting the eccentric pin (60) to advance or delay its collision with the arc plate (50), the damper (52) is activated earlier or later.

4. The lifting door moving device (100) according to claim 3, characterized in that, The arc plate (50) drives the damper (52) through a stop element (55), and the damper (52) is provided with a guide rod (56).

5. The lifting door moving device (100) according to claim 1, 2 or 4, characterized in that, The sliding plate (30) has a rectangular frame shape and a window (31) defined by two horizontal sides (32) and two vertical sides. The two horizontal sides (32) are slidably disposed in the corresponding longitudinal guide rails (15) of the container (10). The two vertical sides are a first vertical side (33) and a second vertical side (34), wherein the second vertical side (34) is provided with an element for abutting against the cam (14).

6. The lifting door moving device (100) according to claim 5, characterized in that, The element used to abut against the cam (14) is a roller (35).

7. The lifting door moving device (100) according to claim 6, characterized in that, At least one of the springs (40) is disposed in the window (31) of the sliding plate (30), the spring (40) is disposed in the fixed seat (16) inside the container (10), and one side of the spring (40) acts on the first vertical side (33) of the sliding plate (30) through a corresponding second stop (41), and the other side of the spring (40) abuts against the first stop (17) acting on the container (10), on which an assembly for adjusting the spring preload is disposed.

8. The lifting door moving device (100) according to claim 7, characterized in that, The assembly for adjusting the spring preload includes a screw (42) and a sliding element (43), the screw (42) acting on the sliding element (43) screwed thereon, the screw (42) being axially fixed relative to the container (10), and the screw (42) having a toothed head (44) that allows adjustment of the screw (42) in the direction of the screw (42) axis by means of a tool acting on the toothed head (44).

9. The lifting door moving device (100) according to any one of claims 1, 2, 4 or 6-8, characterized in that, The sliding plate (30) is composed of two identical plates (30', 30"), which are symmetrically arranged along the longitudinal axis (s).

10. The lifting door moving device (100) according to claim 9, characterized in that, The container (10) consists of two substantially identical half-shells.

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