HEIGHT-ADJUSTABLE STAND WITH SCISSOR-LIFT ASSEMBLY

Abstract

A height-adjustable stand unit including a main surface assembly configured to support computing equipment. The stand unit includes an upper frame coupled to the main surface assembly, a lower frame adapted to rest on a work surface, and a scissor-lift elevation mechanism disposed between the frames. The scissor-lift assembly comprises two pairs of elongate arms in crisscross configuration with pivotal connections at central pivot points, enabling stable vertical adjustment of the main surface assembly for ergonomic positioning.

Claims

1. A height-adjustable stand unit comprising: a main surface assembly having left, right, front, and back sides relative to a user; an upper frame attached to a bottom of the main surface assembly; a lower frame adapted to rest on an upper surface of a work area; and an elevation mechanism disposed between the upper frame and the lower frame; the elevation mechanism comprising a scissor-lift assembly including two pairs of arms pivotally connected at respective central pivots; each pair of arms being arranged in a crisscross configuration, with one arm having a pivotable connection to the upper frame and a slidable connection to the lower frame, and the other arm having a pivotable connection to the lower frame and a slidable connection to the upper frame; wherein the elevation mechanism is configured to raise and lower the main surface assembly by engagement by the user with the elevation mechanism.

2. The stand unit of claim 1, wherein the scissor-lift assembly further comprises a transverse reinforcement element connecting the two pairs of arms to maintain parallel alignment during raising and lowering of the main surface assembly.

3. The stand unit of claim 2, wherein the transverse reinforcement element is configured to increase rigidity and lateral stability of the scissor-lift assembly with respect to movement along an axis extending between the left and right sides of the main surface assembly.

4. The stand unit of claim 1, wherein the elevation mechanism includes a mechanical bracket or linkage configured to transmit user-applied force directly to at least one of the scissor arms.

5. The stand unit of claim 1, wherein vertical adjustment of the main surface assembly is effected by movement of one or more mechanical components physically displaced by the user.

6. The stand unit of claim 1, wherein the main surface assembly is configured to move along a substantially vertical path while maintaining a fixed front-to-user orientation.

7. The stand unit of claim 1, wherein the scissor-lift assembly is exposed to view while the stand unit is in both raised and lowered positions.

8. A method of adjusting the height of a stand unit comprising the steps of: positioning a stand unit on a work surface, the stand unit comprising, a main surface assembly having left, right, front, and back sides relative to a user, an upper frame attached to a bottom of the main surface assembly, a lower frame adapted to rest on the work surface, and a scissor-lift assembly disposed between the upper frame and the lower frame, the scissor-lift assembly including two pairs of arms arranged in a crisscross configuration, each pair having one arm pivotally connected to the upper frame and slidably connected to the lower frame, and another arm pivotally connected to the lower frame and slidably connected to the upper frame; manually engaging the elevation mechanism; and raising or lowering the main surface assembly by applying user-applied force to the scissor-lift assembly. raising or lowering the main surface assembly by applying force through user engagement.

9. The method of claim 8, further comprising the step of maintaining a fixed orientation of the main surface assembly relative to the user while adjusting the vertical height.

10. The method of claim 8, wherein manually engaging the scissor-lift assembly comprises applying force to a mechanical linkage or bracket coupled to at least one of the arms.

11. The method of claim 8, further comprising the step of providing a transverse reinforcement element connected between the pairs of arms to maintain parallel alignment during movement.

12. The method of claim 11, wherein the transverse reinforcement element increases lateral stability of the scissor-lift assembly along an axis extending between the left and right sides of the main surface assembly.

13. The method of claim 8, wherein the scissor-lift assembly remains exposed to view during both raising and lowering of the main surface assembly.

Description

BRIEF DESCRIPTION OF THE DRAWING FIGURES

[0006] The accompanying drawings illustrate several embodiments of the invention and, together with the description, serve to explain the principles of the invention according to the embodiments. It will be appreciated by one skilled in the art that the particular embodiments illustrated in the drawings are merely exemplary and are not to be considered as limiting the scope of the invention or the claims herein in any way.

[0007] A more complete understanding of the present invention may be obtained by reference to the Detailed Description when taken in conjunction with the accompanying Drawings.

[0008] FIG. 1 shows a partial exploded view of exemplary desktop system;

[0009] FIG. 2A shows a side view of the frame assembly of the exemplary desktop system;

[0010] FIG. 2B shows an exploded view of the frame assembly of the exemplary desktop system;

[0011] FIG. 3 shows an exploded view of the surface assembly of the exemplary desktop system;

[0012] FIG. 4 shows various views of the edge-folded slide guide;

[0013] FIG. 5A shows a top plan view of the exemplary desktop system in a down and closed state;

[0014] FIG. 5B shows a top plan view of the exemplary desktop system in a down and open state;

[0015] FIG. 5C shows a front perspective view of the exemplary desktop system in a down and closed state;

[0016] FIG. 5D shows a front perspective view of the exemplary desktop system in a down and open state;

[0017] FIG. 5E shows a side view of the exemplary desktop system in a down and closed state;

[0018] FIG. 5F shows a front perspective view of the exemplary desktop system in a down and open state;

[0019] FIG. 5G shows a bottom view of the exemplary desktop system in a down and closed state;

[0020] FIG. 5H shows a bottom view of the exemplary desktop system in a down and open state;

[0021] FIG. 6A shows a top view of the exemplary desktop system in a up and closed state;

[0022] FIG. 6B shows a top view of the exemplary desktop system in a up and open state;

[0023] FIG. 6C shows a side view of the exemplary desktop system in a up and closed state;

[0024] FIG. 6D shows a side of the exemplary desktop system in a up and open state;

[0025] FIG. 6E a bottom view of the exemplary desktop system in a up and closed state;

[0026] FIG. 6F a bottom view of the exemplary desktop system in a up and open state;

[0027] FIG. 7A shows a front side view of the exemplary desktop system in a up and closed state;

[0028] FIG. 7B shows a rear side view of the exemplary desktop system a up and open state; and

[0029] FIG. 8 shows various views of the grommet assembly.

SUMMARY OF THE INVENTION

[0030] The present invention relates to a height-adjustable stand unit configured to support computing equipment such as a monitor, laptop, or other devices or items. The stand unit includes a main surface assembly having defined left, right, front, and back sides relative to a user, and is ergonomically designed to facilitate seated or standing use by allowing adjustment of the height of the main surface assembly.

[0031] The stand unit comprises an upper frame coupled to a bottom side of the main surface assembly and a lower frame adapted to rest securely on a horizontal work surface. Disposed between the upper and lower frames is an elevation mechanism comprising a scissor-lift assembly. The scissor-lift assembly includes two pairs of elongate arms arranged in a crisscross configuration and pivotally connected at respective central pivot points. In each pair, one arm is pivotally connected to the upper frame and slidably connected to the lower frame, while the other arm is pivotally connected to the lower frame and slidably connected to the upper frame. This configuration enables stable vertical movement of the main surface assembly relative to the work surface.

[0032] In certain embodiments, the elevation mechanism is configured to raise and lower the main surface assembly by direct manual engagement by the user, such as through interaction with a lever, linkage, or other mechanical component coupled to the scissor-lift assembly. This approach allows adjustment of the surface.

[0033] In some embodiments, the scissor-lift assembly further includes a transverse reinforcement element extending between the two pairs of arms to maintain parallel alignment and provide lateral stability during elevation and lowering. The mechanism may also be configured such that the scissor-lift structure remains at least partially exposed to view during operation.

[0034] The structural configuration of the stand unit enables smooth, vertically constrained motion of the main surface assembly while maintaining a consistent orientation toward the user. This ergonomic adjustability enhances comfort and usability, supporting modern sit-stand workflows.

DETAILED DESCRIPTION

[0035] One or more different inventions may be described in the present application. Further, for one or more of the inventions described herein, numerous alternative embodiments may be described; it should be appreciated that these are presented for illustrative purposes only and are not limiting the inventions contained herein or the claims presented herein in any way. One or more of the inventions may be widely applicable to numerous embodiments, as may be readily apparent from the disclosure. In general, embodiments are described in sufficient detail to enable those skilled in the art to practice one or more of the inventions, and it should be appreciated that other embodiments may be utilized and that structural, logical, software, electrical and other changes may be made without departing from the scope of the particular inventions. Accordingly, one skilled in the art will recognize that one or more of the inventions may be practiced with various modifications and alterations. Particular features of one or more of the inventions described herein may be described with reference to one or more particular embodiments or figures that form a part of the present disclosure, and in which are shown, by way of illustration, specific embodiments of one or more of the inventions. It should be appreciated, however, that such features are not limited to usage in the one or more particular embodiments or figures with reference to which they are described. The present disclosure is neither a literal description of all embodiments of one or more of the inventions nor a listing of features of one or more of the inventions that must be present in all embodiments.

[0036] Headings of sections provided in this patent application and the title of this patent application are for convenience only and are not to be taken as limiting the disclosure in any way.

[0037] Devices that are in communication with each other need not be in continuous communication with each other, unless expressly specified otherwise. In addition, devices that are in communication with each other may communicate directly or indirectly through one or more communication means or intermediaries, logical or physical.

[0038] A description of an embodiment with several components in communication with each other does not imply that all such components are required. To the contrary, a variety of optional components may be described to illustrate a wide variety of possible embodiments of one or more of the inventions and in order to more fully illustrate one or more aspects of the inventions. Similarly, although process steps, method steps, algorithms or the like may be described in a sequential order, such processes, methods and algorithms may generally be configured to work in alternate orders, unless specifically stated to the contrary. In other words, any sequence or order of steps that may be described in this patent application does not, in and of itself, indicate a requirement that the steps be performed in that order. The steps of described processes may be performed in any order practical. Further, some steps may be performed simultaneously despite being described or implied as occurring non-simultaneously (e.g., because one step is described after the other step). Moreover, the illustration of a process by its depiction in a drawing does not imply that the illustrated process is exclusive of other variations and modifications thereto, does not imply that the illustrated process or any of its steps are necessary to one or more of the invention(s), and does not imply that the illustrated process is preferred. Also, steps are generally described once per embodiment, but this does not mean they must occur once, or that they may only occur once each time a process, method, or algorithm is carried out or executed. Some steps may be omitted in some embodiments or some occurrences, or some steps may be executed more than once in a given embodiment or occurrence.

[0039] When a single device or article is described herein, it will be readily apparent that more than one device or article may be used in place of a single device or article. Similarly, where more than one device or article is described herein, it will be readily apparent that a single device or article may be used in place of the more than one device or article.

[0040] The functionality or the features of a device may be alternatively embodied by one or more other devices that are not explicitly described as having such functionality or features. Thus, other embodiments of one or more of the inventions need not include the device itself.

[0041] Techniques and mechanisms described or referenced herein will sometimes be described in singular form for clarity. However, it should be appreciated that particular embodiments may include multiple iterations of a technique or multiple instantiations of a mechanism unless noted otherwise. Process descriptions or blocks in figures should be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps in the process. Alternate implementations are included within the scope of embodiments of the present invention in which, for example, functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those having ordinary skill in the art.

[0042] Referring now to the figures, FIG. 1 shows an exemplary desktop system 101 with surface assembly 102 and frame assembly 103. Frame assembly 103 comprises a scissor assembly, discussed further in detail with respect to FIG. 2A-B. Scissor assembly aids in allowing the frame assembly 103 to be adjusted to/positioned at varying heights. Screws 103a are used to attach frame assembly 103 to surface assembly 102.

[0043] FIG. 2A shows a side view of the frame assembly 103 of the exemplary desktop system 101. FIG. 2B shows an exploded view of the frame assembly 103 of the exemplary desktop system 101.

[0044] Frame assembly 103 has upper tray 104 and lower tray 105. Upper tray 104 has cut outs 106 in a surface thereof to allow U-shaped hinge brackets 107 to pass through upper tray 104. U-shaped hinge brackets 107 have openings at distal ends thereof to allow the hinge brackets 107 to be secured to scissor arms 108 with fasteners. Bottom tray 105 also has cut outs and corresponding U-shaped hinge brackets 107 to attach scissor arms 108 to bottom tray 105.

[0045] Scissor arms 108 generally comprise inner scissor arms 109 and outer scissor arms 110. Inner scissor arms 109 and outer scissor arms 110 form a crisscross shape and move around a pin at a center of inner scissor arms 109 and outer scissor arms 110. Reinforcer tube 111 (herein also referred to as a transverse reinforcement element) is attached at one end of inner scissor arms 109 to maintain a set distance between the inner 109 and outer 110 scissor arms and to allow the inner 109 and outer 110 scissor arms to move together in parallel. Reinforcer tube 111 also gives the system stability when the frame assembly is raised into an elevated position.

[0046] Clevis pins 112 and cutter pins 113 are used to connect the inner scissor arm 109 and outer scissor arm 110 to the top tray 104 and bottom tray 105 via the U-shaped hinge brackets 107.

[0047] U-shaped tracks 114 and 123 are provided in upper and lower trays 104 and 105, respectively, to accept roller wheels, discussed below. Carrier bracket 115 is provided at one end of the scissor arms 109 and 110 to transfer the force of the electric motor 119 to the scissor arms 109 and 110. Self-tapping screw 116 connects carrier bracket 115 to ear flanges 118 to connect the motor 119 to the carrier bracket 115.

[0048] Bottom tray 105 has welded tubes 120 to provide stability to the assembly. Pop rivets 121 secure the motor 119 to the lower tray 105. Washers 117 are provided to the back of pop rivets 121. Stop tubes 122 are provided at opposing ends of lower tray 105 to provide a resting/stabilizing point for the upper tray 104. Flange 124 is provided on the lower tray to secure the back of motor 119.

[0049] Roller wheels 125 and 126 are connected at one end of scissor arms 109 and 110. Roller wheels 125 are customized and have an integrated stand off. The integrated stand off provides appropriate spacing from tube arms 109 and also for the roller wheels 125 to be placed into the U-shaped tracks 114.

[0050] FIG. 3 shows an exploded view of surface assembly 102. Surface assembly 102 has a main surface 127 and a keyboard tray 128. Keyboard tray 128 is slidebly attached to main surface 127 via slide bracket 140, slide outer piece 129, slide inner piece 130, surface joint and drawer slide attachment flange 135, slide flange surface joint 133, and edge folded slide guide 134. Pop rivets 132 are used to make various attachments between components. Also provided and integrated on main surface 127 is an up/down switch 131 that can be actuated to move the main surface 127 of the desktop system along a vertical axis to a desired position. Switch 131 can also have an integrated USB charger.

[0051] Keyboard tray 128 is generally provided at a position below (along a vertical axis) from main surface 127. Main surface 127 and keyboard tray 128 are attached via stationary surface joints, which are affixed to each surface via fasteners. Keyboard tray 128 is attached to main surface 127 with slide bracket 140 that allow keyboard tray 128 to slide forward and backwards.

[0052] Main surface 127 has various grommet holes 137 to allow for various cables (not shown) to pass therethrough. Grommet hole 137 holds an under grommet washer 135 and a grommet cover 136. When grommet cover 136 is placed in grommet hole 137, a flush surface is created. FIG. 8 shows further details of the grommet assembly.

[0053] FIG. 4 shows various views of the edge folded slide guide 134. Edge folded slide guide 134 has U-shaped guides 138 for securing back and forth movement of the slide flange surface. Screw holes 137 are provided in the edge folded slide guide 134 to allow for attachment.

[0054] FIG. 5A shows a top plan view of the exemplary desktop system 101 in a down and closed state. Main surface 127 of the desktop system 101 is in a lowered position (i.e. down state), and keyboard tray 128 is below the main surface 127 in a closed state.

[0055] FIG. 5B shows a top plan view of the exemplary desktop system 101 in a down and open state. Main surface 127 of the desktop system 101 is in a lowered position (i.e. down state) and keyboard tray 128 is slid forward (i.e. open state) with respected to the main surface 127.

[0056] FIG. 5C shows a front perspective view of the exemplary desktop system 101 in a down and closed state. Main surface 127 of the desktop system 101 is in a lowered position (i.e. down state), and keyboard tray 128 is below the main surface 127 in a closed state.

[0057] FIG. 5D shows a front perspective view of the exemplary desktop system 101 in a down and open state. Main surface 127 of the desktop system 101 is in a lowered position (i.e. down state) and keyboard tray 128 is slid forward (i.e. open state) with respected to the main surface 127.

[0058] FIG. 5E shows a side view of the exemplary desktop system 101 in a down and closed state. FIG. 5F shows a side view of the exemplary desktop system 101 in a down and open state.

[0059] FIG. 5G shows a bottom view of the exemplary desktop system 101 in a down and closed state. Main surface 127 of the desktop system 101 is in a lowered position (i.e. down state), and keyboard tray 128 is below the main surface 127 in a closed state.

[0060] FIG. 5H shows a bottom view of the exemplary desktop system 101 in a down and open state. Main surface 127 of the desktop system 101 is in a lowered position (i.e. down state) and keyboard tray 128 is slid forward (i.e. open state) with respected to the main surface 127.

[0061] FIG. 6A shows a top view of the exemplary desktop system 101 in a up and closed state. Main surface 127 of the desktop system 101 is in a raised position (i.e. up state), and keyboard tray 128 is below the main surface 127 in a closed state.

[0062] FIG. 6B shows a top view of the exemplary desktop system 101 in a up and open state. Main surface 127 of the desktop system 101 is in a raised position (i.e. up state) and keyboard tray 128 is slid forward (i.e. open state) with respected to the main surface 127.

[0063] FIG. 6C shows a side view of the exemplary desktop system 101 in a up and closed state. FIG. 6D shows a side of the exemplary desktop system 101 in a up and open state.

[0064] FIG. 6E a bottom view of the exemplary desktop system 101 in a up and closed state. Main surface 127 of the desktop system 101 is in a raised position (i.e. up state), and keyboard tray 128 is below the main surface 127 in a closed state.

[0065] FIG. 6F a bottom view of the exemplary desktop system 101 in a up and open state. Main surface 127 of the desktop system 101 is in a raised position (i.e. up state) and keyboard tray 128 is slid forward (i.e. open state) with respected to the main surface 127.

[0066] FIG. 7A shows a front side view of the exemplary desktop system 101 in a up and closed state. FIG. 7B shows a rear side view of the exemplary desktop system 101 in an up and open state. The FIGS. 7A and 7B shown the desktop system 101 with a raised main surface 127. An elevation mechanism is formed by the movement of the scissor arms 108. When switch 131 (shown in FIG. 3) is actuated, the scissor arms 108, are moved along the track using the motor 119. The scissor arms 108 move in either horizontal direction, thereby raising and lowering main surface 127.

[0067] FIG. 8 shows main surface 127 of surface assembly 102 with grommet holes 137. Grommet hole 137 has a recessed ridge that allows grommet washer 135 to fit therein. Grommet washer 135 has a split 138 formed in the washer to allow for compression of the grommet to fit snugly within the recessed ridge. Once grommet washer 135 is placed in grommet hole, grommet cover 136 can be placed over grommet washer 135. When both grommet washer 135 and grommet cover 136 are placed in grommet hole 137, the grommet cover 136 is flush with main surface 127.

[0068] In an alternate embodiment, monitor arms may be inserted into grommet holes 137. Main surface 127 has at least one, but preferably three, grommet holes to allow for monitor arms to be inserted into grommet holes. Monitor arms can be designed to support computer monitors, for example, but can support other types of screens and electronic devices. Keyboard tray 128 is generally a flat surface capable of accommodating a keyboard, mouse, and other computer accessories.

[0069] In another exemplary desktop system, grommet hole 137 in the center of main surface 127 can being used by a monitor arm, which can accommodate dual screens (also referred to as dual monitor arm). A monitor arm capable of accommodating a single monitor, would be interchangeable by a user. Other grommet holes can similarly accommodate monitor arms of the dual or single type.

[0070] As generally discussed above, frame assembly 103 (or lift mechanism) generally comprises upper 104 and lower 105 frames, and, respectively, and a linear actuator powered by motor 119. Provided between and connecting upper 104 frame and lower frame 104 and are scissor arms 108 that expand in crisscross fashion to increase the distance between upper 104 and lower 105 frames and fold onto each other to decrease the distance between upper 104 and lower frames 105. Scissor arms 108 can be cubic tubes, for example. Scissor arms 108 move on roller wheels 125, 126 provided at an end of scissor arms 108. Connecting tube 111 is also provided between scissor arms 108 for structural support. Lift mechanism is designed to create up to an 18-inch elevation and lift up to 80 lbs. A linear actuator is a type of motor 119 that allows movement along one axis.

[0071] Lower frame 105 further comprises roller rail tracks 123 on each side thereof to allow roller wheels 125, 126 to slide there along. Provided at the end of each roller wheels 125, 126 can be stop tubes 122. Also on lower frame 105 is an actuator head mounting plate to secure actuator (i.e. motor 119).

[0072] Attached to the top of actuator is a moving plate, which is designed move along U shapes tracks 114 and 123. When switch 131 is actuated, the moving plate, which is attached the motor 119, moves along the track, which in turn move the scissor arms 108 in either horizontal direction, thereby raising and lowering main surface 127.

[0073] Actuator can be of a number of different types of actuators, for example, but without limitation, a linear track actuator or a linear telescopic rod actuator. One notable feature of this exemplary embodiment in accordance with this invention is that different types of actuators can be used.

[0074] The desktop can be available in various sizes, for example, 36, 40, and 48, in a variety of colors and finishes. An optional LED strip can also be provided for typing in dimly lit environments. Main surface 127 can be in a variety of shapes and sizes, for example, in a triangle, to fit into a corner or cubicle for enhancing even small workspaces.

[0075] As these and other variations and combinations of the features discussed above can be utilized without departing from the invention as defined by the claims, the foregoing description of exemplary embodiments should be taken by way of illustration rather than by way of limitation of the invention as defined by the claims. It will also be understood that the provision of examples of the invention (as well as clauses phrased as such as, e.g., including and the like) should not be interpreted as limiting the invention to the specific examples; rather, the examples are intended to illustrate only some of many possible aspects.