HEIGHT ADJUSTMENT MECHANISM

Abstract

One embodiment includes a leg height adjustment mechanism comprising first and second bolt arms, first and second retractors, and an actuator. Each bolt arm includes a coupling structure. Each retractor includes a sloping surface and a receiving structure. The receiving structure engages with one of the coupling structures of either the first or second bolt arm. The first bolt arm extends in a first lateral direction, and the second bolt arm extends in a second lateral direction. The second retractor extends away from the first retractor in a second lateral direction opposite to the first lateral direction. The actuator includes angled lower surfaces that face outward from the sloping surfaces.

Description

HEIGHT ADJUSTMENT MECHANISM Field of Invention The present invention relates in general to tables and, in particular, to tables that may include height adjustment mechanisms. Background of the Invention Many different types of tables are well known and used for a variety of purposes. For example, conventional tables may include legs that are rotatably attached to a tabletop. These legs can be moved between a use position, in which they extend outward from the tabletop, and a storage position, in which they fold down against the underside of the tabletop. Conventional tables with relatively large tabletops and folding legs are often referred to as banquet tables, and these tables are frequently used in auditoriums, banquet halls, convention centers, hotels, schools, churches, and other venues where large groups of people gather. When the tables are no longer needed, the table legs can be moved to the storage position, and the tables can then be moved or stored. Conventional banquet tables with movable legs can allow the tables to be stored more easily. c K Conveniently, the tabletops for many conventional banquet tables with movable legs, however, retain their size and shape. For example, many well-known banquet tables are between 1.83 and 3.05 meters (six and ten feet) long and between 0.91 and 1.22 meters (three and four feet) wide. As a result, many conventional banquet tables require a large storage area even when the legs are in the collapsed position. This large storage area can be especially problematic for larger facilities such as hotels, schools, and churches because a considerable number of tables may be stored. Thus, a significant amount of space may be required for storing the tables. In addition, smaller facilities such as restaurants, offices, and homes may use one or more conventional banquet tables.Smaller venues may use banquet tables less frequently, such as during special occasions. Conventional banquet tables, even with folding legs, are often bulky and inconvenient to use and store conveniently in these smaller venues. As a result, both larger and smaller venues frequently need to rent or borrow banquet tables when necessary. Unfortunately, this process of renting or borrowing banquet tables can be inconvenient, time-consuming, and expensive. Conventional banquet tables are also often difficult to move or transport from one place to another. For example, due to the length of many conventional banquet tables, it is frequently difficult for a single person to move one. Furthermore, the extended length of conventional banquet tables may prevent them from fitting in the trunk or back seat of a typical passenger car. Consequently, conventional banquet tables may need to be transported in a truck, trailer, or oversized vehicle such as an SUV. These and other factors can make moving conventional banquet tables difficult, time-consuming, and expensive. Tables that can be folded in half are also known. Half-folding tables may include a tabletop with two sections connected by hinges. The two sections are usually the same size and shape, and the hinges are typically located in the center or middle of the tabletop. The two tabletop sections can be moved between an unfolded position, in which the sections are generally aligned on the same plane, and a folded or collapsed position, in which the two sections are generally placed adjacent to each other for storage. Furthermore, some tables may include legs that can be extended or retracted. Extending and retracting the legs allows them to be stored away when the table is folded or collapsed. Additionally, extending and retracting the legs allows the table to be used at different heights.For example, a table can be used for children when the legs are retracted, bringing the tabletop closer to the surface on which the table is placed, such as the floor. Additionally, the table can be used for adults when the legs are extended, which moves the tabletop further away from the surface. A disadvantage is that conventional folding tables with folding tabletops can employ complicated mechanisms to change the leg length. These mechanisms may require the use of both hands or the table to be turned on its side to reach a trigger that allows the leg length to be adjusted. For example, some known mechanisms may include two parallel knobs or cylinders that move together. This movement may require the user to place one hand in an awkward position and may necessitate using the other hand to extend or retract the legs. N C K K Brief Description of the Invention Therefore, there is a need for a table that eliminates or reduces the disadvantages and problems described above. An aspect of a modality may include a height adjustment mechanism for a table leg. The leg height adjustment mechanism may include one or more arms, retractors, and / or actuators. For example, the height adjustment mechanism may include a first locking arm, a first retractor, a second locking arm, a second retractor, and an actuator. The first locking arm may include a first coupling structure, and the first coupling structure may be positioned on one end, such as a first end. The first retractor may include a first inclined surface and a first receiving structure capable of coupling with the first coupling structure of the first locking arm, such that the first locking arm extends in a first lateral direction of the first retractor.The second locking arm may include a second coupling structure, and the coupling structure may be positioned on one end, such as a second end. The second retractor may be separated from the first retractor. For example, the second retractor may be separated from the first retractor in a second lateral direction opposite to the first lateral direction. The second retractor may include a second inclined surface and a second receiving structure capable of coupling with the second coupling structure of the second locking arm, such that the second locking arm extends in the second lateral direction of the second retractor. The actuator may include angled lower surfaces that can be positioned outward with respect to the first inclined surface and the second inclined surface.The angled lower surfaces may be shaped such that a translation or movement of the actuator in a longitudinal direction causes the angled lower surfaces to press against or make contact with the first and second inclined surfaces, thus drawing the first and second retractors toward each other. More specifically, the actuator may be configurable in an inactive and an active position. In the inactive position, the actuator may be in a longitudinal position relative to the first and second retractors, which allows for the outward translation of the first and second retractors.In the active position, the actuator can be in a second longitudinal position relative to the first and second retractors, allowing the angled lower surfaces to make contact with the first and second inclined surfaces, thereby causing the first and second retractors to translate inward. Additionally, at least a portion of the first and second retractors, the actuator, and the first and second locking arms can be positioned in a cavity of the mechanism, which can be defined by a crossbar assembly. In one exemplary embodiment, a portion of the first locking arm can extend through a first opening at one end of the crossbar assembly when the actuator is in the inactive position.In another exemplary embodiment, a portion of the second bolt arm may extend through a second opening at a second end of the crossbar assembly when the actuator is in the inactive position. The actuator may also include a projection extending from the mechanism cavity in the longitudinal direction of an upper portion of the crossbar assembly. The projection may include a projection height, which may be defined between a top surface of the crossbar assembly and a top surface of the projection. The top surface of the crossbar assembly may include an arched, curved, or rounded projection that may include a first end that is substantially co-plane with the top surface and a second end that includes an arched projection height that is substantially co-plane with the projection.The second end of the arched projection can be positioned immediately adjacent to the projection. The height adjustment mechanism can further include a bias member such as a spring. The first retractor can include a first longitudinal surface opposite the first inclined surface. The second retractor can include a second longitudinal surface opposite the second inclined surface. The spring can be positioned between the first longitudinal surface and the second longitudinal surface. The spring can be configured to exert a force against one or more of the retractors. For example, the spring can exert a force against both the first and second retractors. More specifically, the spring can force the first retractor away from the second retractor. If desired, the spring can force the first and second retractors against the angled lower surfaces.The height adjustment mechanism may further include a first spring retainer and a second spring retainer. The first spring retainer may be positioned on the first longitudinal surface. The second spring retainer may be positioned on the second longitudinal surface. The first and second spring retainers may be positioned within the spring portions. The height adjustment mechanism may further include one or more pins. In one exemplary embodiment, the height adjustment mechanism may include two pins, the actuator may include two longitudinal pin openings, and the first and second bolt arms may each include a side pin opening that partially overlaps one of the two longitudinal pin openings. Each of the two pins may be positioned in one of the longitudinal pin openings and one of the side pin openings.The pins can limit the movement of the actuator to a substantially longitudinal direction and can limit the movement of the first and second bolt arms to a substantially longitudinal direction. Advantageously, the height adjustment mechanism allows the table legs to be extended or retracted by applying individual force. Consequently, the height adjustment mechanism can be operated by a user with one hand, which can reduce the effort required when changing the height of a tabletop relative to a surface such as the floor. Another aspect of a modality may include a table comprising a tabletop, a frame, a leg assembly, and a leg height adjustment mechanism. The leg height adjustment mechanism may include one or more retractor and / or actuator arms. For example, the leg height adjustment mechanism may include a first locking arm, a first retractor, a second locking arm, a second retractor, and an actuator. The first locking arm may include a first coupling structure, and the coupling structure may be positioned at a first end. The first retractor may include a first inclined surface and a first receiving structure capable of coupling with the first coupling structure of the first locking arm, such that the first locking arm extends in a first lateral direction of the first retractor.The second locking arm may include a second coupling structure at a second end. The second retractor may be separable from the first retractor. For example, the second retractor may be separated from the first retractor in a second lateral direction opposite to the first lateral direction of the second retractor. The second retractor may include a second inclined surface and a second receiving structure capable of coupling with the second coupling structure of the second locking arm, such that the second locking arm extends in the second lateral direction of the second retractor. The actuator may include angled lower surfaces that can be positioned outward relative to the first inclined surface and the second inclined surface.The angled lower surfaces may be shaped such that a translation or movement of the actuator in a longitudinal direction causes the angled lower surfaces to press against or make contact with the first and second inclined surfaces, thus drawing the first and second retractors toward each other. Specifically, the actuator may be configured in an inactive position in which it is in a longitudinal position relative to the first and second retractors, allowing for the outward translation of both.The actuator can also be configured in an active position in which it is in a second longitudinal position relative to the first and second retractors, and its angled lower surfaces make contact with the first and second inclined surfaces to cause the inward translation of the first and second retractors. Additionally, the first and second retractors, a portion of the actuator, and portions of the first and second bolt arms can be at least partially positioned within a cavity of the mechanism defined by a crossbar assembly. A portion of the first bolt arm can extend through a first opening at one end of the crossbar assembly when the actuator is in the inactive position. N C K K A portion of the second bolt arm may extend through a second opening at a second end of the crossbar assembly when the actuator is in the inactive position. The actuator may also include a projection extending from the mechanism cavity in the longitudinal direction of an upper portion of the crossbar assembly. The projection may include a projection height defined between a top surface of the crossbar assembly and a top surface of the projection. The top surface of the crossbar assembly may include an arched projection with a first end that is substantially co-plane with the top surface and a second end with an arched projection height that is substantially co-plane with the projection. The second end of the arched projection may be positioned immediately adjacent to the projection.The height adjustment mechanism may also include a bias member such as a spring. The first retractor may include a first longitudinal surface opposite the first inclined surface. The second retractor may include a second longitudinal surface opposite the second inclined surface. The spring may be positioned between the first longitudinal surface and the second longitudinal surface. The spring may be configured to exert a force against one or more of the retractors. For example, the spring may exert a force against both the first and second retractors. More specifically, the spring may force the first retractor away from the second retractor and force both the first and second retractors against the angled lower surfaces. The height adjustment mechanism may also include a first spring retainer and a second spring retainer.The first spring retainer can be positioned on the first longitudinal surface. The second spring retainer can be positioned on the second longitudinal surface. The first and second spring retainers can be positioned within the spring portions. The height adjustment mechanism may further include one or more pins (e.g., two pins), the actuator may include one or more longitudinal pin openings (e.g., two longitudinal pin openings), and the first and second bolt arms may each include a side pin opening that partially overlaps one of the two longitudinal pin openings. Each pin may be positioned in one of the longitudinal pin openings and one of the side pin openings.The pins can limit the movement of the actuator to a substantially longitudinal direction and can limit the movement of the first and second bolt arms to a substantially lateral direction. > κ n cc K Yet another aspect of a modality may include one or more leg assemblies that can be rotatably connected to a table. For example, a modality may include a first leg assembly and a second leg assembly. The first leg assembly and the second leg assembly can be rotatably connected to a table. In more detail, the leg assemblies can be rotatably connected to the frame and / or the tabletop. The leg assembly may include any suitable number of legs, leg assemblies, and / or leg subassemblies. For example, the leg assembly may include a first leg subassembly, a second leg subassembly, a crossbar assembly, and a height adjustment mechanism. The first leg subassembly may include a first upper leg having one or more upper latch openings, and the latch openings can be positioned on an inner surface of the first upper leg.The first upper leg may at least partially define a first cavity into which a first lower leg can be retracted. The lower leg may have one or more lower bolt openings, and one or more of the lower bolt openings may be selectively aligned with the one or more upper bolt openings. The second leg subassembly may include a second upper leg having one or more upper bolt openings, and the bolt openings may be positioned on an inner surface of the second upper leg. The second upper leg may at least partially define a second cavity into which a second lower leg can be retracted. The lower leg may have one or more lower bolt openings, and one or more of the lower bolt openings may be selectively aligned with the one or more upper bolt openings.The crossbar assembly can be positioned laterally between the first leg subassembly and the second leg subassembly, and may include a first opening at a first end and a second opening at a second end. The crossbar assembly can be mechanically coupled to the first upper leg and the second upper leg such that the first opening of the crossbar assembly aligns with a first upper latch opening of the upper latch openings of the first upper leg, and the second opening of the crossbar assembly aligns with a first upper latch opening of the upper latch openings of the second upper leg. The height adjustment mechanism may be at least partially contained within the crossbar assembly and may include a first retractor, a second retractor, a first latch arm, a second latch arm, and an actuator.The first retractor may include a first inclined surface and a first receiving structure. The second retractor may include a second inclined surface and a second receiving structure. The first locking arm may include a first coupling structure capable of being coupled with a first receiving structure of the first retractor, such that the first locking arm extends in a first lateral direction of the first retractor. The second locking arm may include a second coupling structure capable of being coupled with a second receiving structure of the second retractor, such that the second locking arm extends in a second lateral direction opposite to the first lateral direction of the second retractor.The actuator may include angled lower surfaces and may be configurable in an inactive position to allow outward translation of the first and second retractors such that the first and second locking arms extend from the first and second openings of the crossbar assembly. The actuator may also be configurable in an active position in which the angled lower surfaces contact the first angled surface, and the second angled surface causes inward translation of the first and second retractors such that the first and second locking arms are drawn out of the crossbar assembly through the first and second openings. The actuator may also include a projection extending from the crossbar assembly in the longitudinal direction of a top surface of the crossbar assembly.The transition between the inactive and active positions may involve a translation or longitudinal movement of the actuator relative to the crossbar assembly through the application of a force substantially normal to the projection. The projection may include a projection height defined between the top surface of the crossbar assembly and a top surface of the projection. The crossbar assembly may include two arched projections positioned immediately adjacent to the projection. Each of the two arched projections may include a first end that is substantially co-plane with the top surface of the crossbar assembly and a second end that is substantially equal to the projection height. The leg assembly may also include a skew member such as a spring. In detail, the first retractor may include a first longitudinal surface opposite the first skewed surface.The second retractor may include a second longitudinal surface opposite the second inclined surface. The spring may be positioned between the first longitudinal surface and the second longitudinal surface, and the spring may be configured to exert a force against one or more of the refractors. For example, the spring may exert a force against both the first and second retractors. More specifically, the spring may force the first retractor against the second retractor and force the first inclined surface and the second inclined surface against the angled lower surfaces.The height adjustment mechanism may further include one or more pins (e.g., two pins), the actuator may include one or more longitudinal pin openings (e.g., two longitudinal pin openings), and the first and second bolt arms may each include a side pin opening that overlaps at least partially one of the longitudinal pin openings. The pins may be positioned in one of the longitudinal pin openings and one of the side pin openings. The pins may limit the movement of the actuator to a substantially longitudinal direction and may limit the movement of the first and second bolt arms to a substantially lateral direction. Yet another aspect of a model may include a folding table. The folding table may include a tabletop, a frame, one or more leg assemblies, and one or more adjustment mechanisms. The tabletop may include a first tabletop section and a second tabletop section, and the tabletop may be movable between a folded and an unfolded position. The first tabletop section and the second tabletop section may generally be aligned in the same plane when the tabletop is in the unfolded position. The first tabletop section and the second tabletop section may generally be positioned adjacent and parallel to each other when the tabletop is in the folded position. The frame may be attached to the tabletop and may include a first side rail and a second side rail.The first side rail may include a first rail section connected to the first tabletop section and a second rail section connected to the second tabletop section. The second side rail may include a first rail section that can be connected to the first tabletop section and a second rail section that can be connected to the second tabletop section. One or both of the leg assemblies may be rotatably attached to the table. In particular, one or both of the leg assemblies may be rotatably attached to the frame and / or the tabletop. The leg assembly may include a first cross member, a first leg sub-assembly, a second leg sub-assembly, and a crossbar assembly. The first member >. κ n The cross-member may include a first end that can be positioned in the first rail section of the first side rail and a second end that can be positioned in the first rail section of the second side rail. The first leg subassembly can be coupled to the first cross member and may include a first upper leg having one or more upper latch openings. The upper latch openings can be positioned on an inner surface of the first upper leg. The first upper leg can define a first cavity into which a first lower leg can be retractably positioned. The lower leg can have one or more lower latch openings. The one or more lower leg openings can be selectively aligned with the one or more upper leg openings. Similarly, the second leg subassembly can be mechanically coupled to the first cross member.The second leg subassembly may include a second upper leg having one or more upper bolt openings, and the one or more upper bolt openings may be positioned on an inner surface of the second upper leg. The second upper leg may at least partially define a second cavity into which a second lower leg may be retractably positioned. The lower leg may have one or more of the lower bolt openings, and the one or more lower bolt openings may be selectively aligned with the one or more upper bolt openings. The crossbar assembly may be positioned laterally between the first leg subassembly and the second leg subassembly. The crossbar assembly may include a first opening at a first end and a second opening at a second end.The crossbar assembly can be mechanically coupled to the first upper leg and the second upper leg such that the first opening of the crossbar assembly aligns with a first upper latch opening of one or more upper latch openings of the first upper leg, and the second opening of the crossbar assembly aligns with a first upper latch opening of one or more upper latch openings of the second upper leg. The height adjustment mechanism may be at least partially contained within the crossbar assembly and may include a first retractor, a second retractor, a first latch arm, a second latch arm, a spring, and an actuator. The first retractor may include a first inclined surface opposite the first longitudinal surface and a first receiving structure.The second retractor may include a second inclined surface opposite a second longitudinal surface, and a second receiving structure. The first bolt arm may include a first coupling structure that can be κ. c K The first retractor can be coupled with, or is capable of being coupled with, a first receiving structure of the first retractor such that the first bolt arm extends in a first longitudinal direction of the first retractor. The second bolt arm may include a second coupling structure that can be coupled with, or is capable of being coupled with, the second receiving structure of the second retractor such that the second bolt arm extends in a second lateral direction opposite to the first lateral direction of the second retractor. The spring may be positioned between the first longitudinal surface and the second longitudinal surface and may be configured to impose a spring force that separates the first retractor from the second retractor. The actuator may include angled lower surfaces that can be positioned outwards with respect to the first inclined surface and the second inclined surface.The angled lower surfaces can be configured to make contact with the first inclined surface and the second inclined surface. With respect to a translation or longitudinal movement of the actuator to draw the first and second retractors toward each other in the lateral direction, the actuator can be configured in an inactive position in which outward translation of the first and second retractors is permitted, such that the first and second locking arms extend from the first and second openings of the crossbar assembly, respectively. Alternatively, the actuator can be configured in an active position that causes inward translation of the first and second retractors, such that the first and second locking arms are drawn into the crossbar assembly through the first and second openings.The actuator may include a projection extending from the crossbar assembly in the longitudinal direction of a top surface of the crossbar assembly. The transition between the inactive and active positions may involve a translation or longitudinal movement of the actuator relative to the crossbar assembly through the application of a force substantially normal to the projection. The projection may include a projection height, which may be defined between the top surface of the crossbar assembly and a top surface of the projection. The crossbar assembly may include two arched projections positioned immediately adjacent to the projection. One or both of the two arched projections may include a first end that is substantially coplane with the top surface of the crossbar assembly and a second end that is substantially coplane with the projection.The height adjustment mechanism may further include two pins; the actuator may include two longitudinal pin openings; and the first and second bolt arms may each include a lateral pin opening that partially overlaps one of the two longitudinal pin openings. Each of the two bolts may be positioned in one of the longitudinal pin openings and one of the lateral pin openings. The pins may limit the movement of the actuator to a substantially longitudinal direction and may limit the movement of the first and second bolt arms to a substantially lateral direction. These and other aspects, features and advantages of the present invention will be more fully evident from the following detailed description of the figures, the detailed description of the preferred embodiments and the appended claims. Brief Description of the Figures The accompanying figures contain exemplary embodiments to illustrate and clarify the above and other aspects, advantages, and features of the present invention. It will be appreciated that these figures represent only exemplary embodiments of the invention and are not intended to limit its scope. The invention will be described and explained in further specificity and detail by use of the accompanying figures, in which: κ cc K I . , C* in top perspective of a unfolded; in lower oersiective of > í κ c Λ 25 Figure 1A is a view of an exemplary table in a position Figure IB is a view of the table in Figure 1A in the unfolded position; Figure 1C is a bottom perspective view of the table in Figure 1A with leg mounts placed in a storage position; Figure ID is a perspective view of the table in Figure 1A in a folded position; Figure 2A is a partially cropped side view of an exemplary leg assembly in a retracted configuration that can be implemented on the table of Figures 1A-1D; Figure 2B illustrates the leg assembly of Figure 2A in a transitional configuration between the retracted and extended configurations; Figure 2C illustrates the leg assembly of Figure 2A in the extended configuration; Figure 3A is an exemplary crossbar assembly that can be implemented on the table of Figures 1A-1D in an idle configuration; Figure 3B illustrates the crossbar assembly of Figure 3A in an active configuration; Figure 4A is a partially cropped side view of a leg height adjustment mechanism > κ n cc N ​​example that can be implemented in the crossbar assembly of Figure 3A, which illustrates the crossbar in the inactive configuration; Figure 4B illustrates the height adjustment mechanism of Figure 4A in the active configuration; Figure 5A is a detailed, partially cropped, enlarged view through a portion of the height adjustment mechanism of Figure 4A in the inactive configuration; Figure 5B is a detailed, partially cropped, enlarged view of the height adjustment mechanism portion of Figure 5A in the active configuration; Figure 6A is an enlarged, top perspective view of an exemplary actuator that can be implemented in the height adjustment mechanism of Figure 4A; Figure 6B is a cross-sectional view of the activator in Figure 6A; Figure 6C is a bottom perspective view of the activator in Figure 6A; Figure 7A is an enlarged, sectional side view of an exemplary retractor that can be implemented in the height adjustment mechanism of Figure 4A; Figure 7B is a top perspective view of the retractor in Figure 7A; The Figure 7C is a side view of the retractor of the > κ n cc K Figure 7A; ci Figure 8 is a side view of an exemplary upper portion of a crossbar housing that can be implemented in the crossbar assembly of Figure 3A; and Figure 9 is a side view of an exemplary bolt arm that can be implemented in the crossbar assembly of Figure 4A. Detailed Description of the Invention The present invention relates generally to height-adjustment mechanisms for folding tables. However, the principles of the present invention are not limited to height-adjustment mechanisms for folding tables. It is understood that, in view of the present description, the height-adjustment mechanisms, tables, and features described herein can be successfully used in connection with other types of tables, furniture, and the like. Additionally, to aid in describing height-adjustable mechanisms for tables, terms such as top, bottom, front, back, right, and left are used to describe the accompanying figures. It will be appreciated that height-adjustable mechanisms, tables, and the like can be placed in other positions, used in a variety of situations, and can perform a number of different functions. Furthermore, the figures may be to scale and may illustrate various configurations, arrangements, aspects, and features of the table. It will be appreciated, however, that height-adjustable mechanisms and / or tables may have other shapes, sizes, configurations, and arrangements suitable for, for example, the intended use of the height-adjustable mechanism and / or table. Moreover, the height-adjustable mechanism and / or table may include any suitable number or combination of aspects, features, and the like.The following is a detailed description of the exemplary modality forms of the height and table adjustment mechanisms. An exemplary table 10, according to at least one modality, may include a tabletop 12 with an upper surface 14 (Figures 1A and 1D), a lower surface 16 (Figures 1B and 1C), a first end 18, a second end 20, a first side 22, and a second side 24. The upper surface 14 of the tabletop 12 may have a generally flat configuration and may create a work surface. The tabletop 12 may also include a rim that is arranged around the outer perimeter or periphery of the tabletop 12. All or a portion of the rim may be beveled, sloped, and rounded to, for example, increase user comfort and safety. As depicted in Figures IB and IC, the tabletop 12 may also include a border 26. The border 26 may be a downward-extending edge 26 that is positioned near or at least close to the outer portion or perimeter of the tabletop 12. The border 26 may extend downward from the lower surface 16 of the tabletop 12, and the border 26 may align with or form part of the edge of the tabletop 12. It will be appreciated that the border 26 may also be spaced inward from the edge of the tabletop 12. Table 12's tabletop can generally have a rectangular configuration with rounded corners. Table 12's tabletop can be relatively large, and Table 10 can be configured for use as a banquet or utility table. For example, Table 12's tabletop might have a defined length between the first end 18 and the second end 20 of approximately 1.52 meters (five feet) (or approximately 152.4 cm (sixty inches)) and a defined width between the first side 22 and the second side 24 of approximately 0.76 meters (two and a half feet) (or approximately 76.4 cm (thirty inches)), but Table 12's tabletop can be larger or smaller. For example, variations of Table 12's tabletop could include a length between approximately 1.83 and 3.05 meters (six and ten feet) and a width of approximately 0.61 and 0.91 meters (two and three An expert in the > κ n The technical expert will appreciate that the tabletop 12 may be larger or smaller, and may have other suitable shapes and configurations such as square, circular, oval, or the like; and the sides, corners, edges, and other portions of the tabletop 12 could have various shapes, sizes, configurations, and arrangements depending, for example, on the proposed use of the table. Furthermore, the table 10 could be any suitable type of table, such as a folding table, non-folding table, card table, personal table, round table, and the like. For example, it will also be appreciated that the table 10 and its various components may have other shapes, configurations, and arrangements, as described in U.S. Patent Numbers 6,530,331; 7,111,563; 7,475,643; 7,814,844; and 7,975,625; each of which is incorporated herein by reference in its entirety. It will also be appreciated that table 10 can also include any suitable number and combination of features and aspects depending, for example, on the proposed use of table 10. Tabletop 12 can be constructed from lightweight materials such as plastic. Specifically, tabletop 12 can be made of high-density polyethylene, but other suitable materials can be used. Tabletop 12 can be relatively strong, lightweight, rigid, and durable. It can be manufactured quickly and easily. Tabletop 12 can also be relatively durable, weather-resistant, temperature-insensitive, corrosion-resistant, rust-resistant, and will maintain its structural integrity over time. Tabletop 12 can be constructed from plastics, polymers, synthetic materials, and similar materials. Tabletop 12 can also be manufactured using processes such as blow molding, injection molding, rotational molding, and other similar processes.Tabletop 12 can be constructed from other materials with sufficient strength and desirable characteristics, such as wood, metals, alloys, composites, fiberglass, ceramics, and the like. Tabletop 12 could be manufactured using one or more of other suitable processes. Table 10 may include one or more support structures 28A and 28B (generally, support structure 28 or support structures 28). The support structures 28 may be sized and configured to support the tabletop 12 on top of a surface (not shown). For example, table 10 may include a first support structure 28A and a second support structure 28B. The support structures 28 may include one or more leg assemblies 200. Additional details of the leg assemblies 200 are provided elsewhere in this description. The support structures 28 can be moved between an extended or use position, shown in Figures 1A and 1B, and a collapsed or storage position, shown in Figure 1C. In the extended or use position of Figures 1A and 1B, the leg assemblies 200 can be extended outward from the tabletop 12. In the collapsed or storage position of Figure 1C, the leg assemblies 200 can be placed adjacent to, or at least close to, the underside surface 16 of the tabletop 12. However, Figures 1A-1D depict the table 10 including two support structures 28. In some embodiments, the table 10 can include any suitable number, shape, size, configuration, and arrangement of the support structures 28 depending, for example, on the intended use of the table 10. Table 10 can be a folding table. Tabletop 12 can include a first tabletop section 32A and a second tabletop section 32B. The first support structure 28A can be moved between extended and collapsed positions with respect to the first tabletop section 32A. The second support structure 28B can be moved between extended and collapsed positions with respect to the second tabletop section 32B. The first and second tabletop sections 32A and 32B can rotate around a rotation axis 34 (axis 34) (see, for example, Figures IB and 1C) between an unfolded position, which is represented in Figures 1A1C, and a folded position, which is represented in Figure ID. When tabletop 12 is in the unfolded position of Figures 1A-1C, the first and second tabletop sections 32A and 32B can generally be aligned in the same plane. When tabletop 12 is in the folded position of Figure ID, the first and second tabletop sections 32A and 32B can generally be placed adjacent to and parallel to each other. Furthermore, in the folded position of Figure ID, some or all of the components (e.g., 28 and 200) can be placed between the first and second tabletop sections 32A and 32B. The first and second tabletop sections 32A and 32B can have a generally rectangular configuration with a symmetrical or mirror image arrangement. In the deployed position, the first and second tabletop sections 32A and 32B can be joined at an interface 78 (Figure 1A). In some configurations, the first tabletop section 32A and the second tabletop section 32B may include interior surfaces that are in contact or adjacent to create interface 78. The interior surface of the first tabletop section 32A can be sized and configured to make contact and / or engage with the inner surface of the second tabletop section 32B when tabletop 12 is in the unfolded position (Figures 1A-1C). The inner surfaces can then separate when tabletop 12 is in the folded position. The inner surfaces of tabletop 12 may include one or more interlocking, overlapping, and / or crisscrossing portions, such as engagement and receiving portions, which may provide additional strength, stability, and / or rigidity to at least a central portion of tabletop 12. Tabletop 12 may also have other shapes, sizes, configurations, and arrangements. For example, tabletop 12 may be similar to one or more of the tabletops shown in U.S. Patent No. 7,096,799, which is incorporated herein by reference in its entirety. With reference to Figure IB, table 10 may further include a structure 40 that connects to the tabletop 12. The structure 40 may include a surface that makes contact with, or is at least placed close to, the lower surface 16 of the tabletop 12. The structure 40 may include one or more side rails 42A and 42B (generally, side rail 42 or side rails 42). In particular, the embodiment of Figure IB includes a first side rail 42A and a second side rail 42B, which can extend along the length of the tabletop 12. The side rails 42 are preferably positioned close to opposite edges and / or sides 22 and 24 of the tabletop 12. For example, the side rails 42 can be positioned at least close to edge 26, and there can be a gap or space between the side rails 42 and edge 26.The side rails 42 preferably extend almost the entire length of the tabletop 12, which can provide increased strength and rigidity for the tabletop 12. Alternatively, the side rails 42 can extend along only a portion of the tabletop 12. In more detail, the first side rail 42A can be positioned toward the first side 22 of the tabletop 12. The first side rail 42A can include a first rail section 46A that connects to the first tabletop section 32A of the tabletop 12 and a second rail section 46B that connects to the second tabletop section 32B of the tabletop 12. The first and second rail sections 46A and 46B of the first side rail 42A can be offset or separated. For example, the first rail section 46A can be offset from the second rail section 46B in the z-direction in the exemplary coordinate system of Figures 1A-1D. The second side rail 42B can be positioned towards the second side 24 of tabletop 12. The second side rail 42B can include a first rail section 48A connected to the first tabletop section 32A of tabletop 12 and a second rail section 48B connected to the second tabletop section 32B of tabletop 12. The first and second rail sections 48A and 48B of the second side rail 42B can be offset or separated. For example, the first rail section 48A can be offset from the second rail section 48B in the z-direction. The support structures 28 can be connected to the structure 40. For example, a first cross member 208A can connect the structure 40 and the first support structure 28A, and a second cross member 208B can connect the structure 40 and the second support structure 28B. The ends of the first and second cross members 208A and 208B can be at least partially inserted into openings in the side rails 42 of structure 40, which allows the first and second cross members 208A and 208B to rotate with respect to structure 40. The first and second cross members 208A and 208B can form part of structure 40 and / or the support structures 28, depending, for example, on the particular arrangement and / or configuration of table 10. For example, with reference to the Figures 1C and ID the transition of the support structures κ c K K from extended possession or use of Figures 1A and 1B to collapsed storage position of Figure 1C may include rotation of support structures 28 with respect to structure 40. Figures 2A-2C illustrate an exemplary embodiment of the leg assembly 200 that can be implemented on table 10. The leg assembly 200 can be rotatably connected to table 10. For example, the leg assembly 200 can be rotatably connected to frame 40 and / or tabletop 12 of table 10. Figure 2A depicts the leg assembly 200 in a retracted configuration. Figure 2C depicts the leg assembly 200 in an extended configuration. Figure 2B depicts the leg assembly 200 in a transitional configuration between the retracted configuration of Figure 2A and the extended configuration of Figure 2C. The leg assembly 200 may include a first leg subassembly 202A and a second leg subassembly 202B (generally, leg subassemblies 202 or leg subassembly 202) that can be connected via a crossbar assembly 300, a first cross member 208A, and a lower crossbar 204. The first leg subassembly 202A may include a first upper leg 226A. The first upper leg 226A may at least partially define a first cavity 214A. A first lower leg 230A can be placed > κ n The first upper leg 214A may be retractably positioned in the first cavity 214A. Similarly, the second leg subassembly 202B may include a second upper leg 226B. The second upper leg 226B may at least partially define a second cavity 214B. A second lower leg 230B may be retractably positioned in the second cavity 214B. The first upper leg 226A and the second upper leg 226B may be referred to collectively or generally as an upper leg 226 or upper legs 226. The first lower leg 230A and the second lower leg 230B may be referred to collectively or generally as a lower leg 230 or lower legs 230. With reference to Figure 2A, the upper legs 226 may include one or more upper latch openings 228A. The upper latch opening 228A may be positioned on an inner surface 212 of the upper legs 226. In the embodiment shown, the upper legs 226 may include a single upper latch opening 228I. The crossbar assembly 300 may be mechanically coupled to the upper legs 226 on the inner surface 212. The crossbar assembly 300 may be mechanically coupled to the inner surface 212 at a location of the upper latch opening 228A. In particular, the crossbar assembly 300 can be mechanically coupled to the inner surface 212 such that the latch arms of a table leg adjustment mechanism (adjustment mechanism) contained or partially contained in the crossbar assembly 300 can be aligned with the upper latch openings 228A. With reference to Figure 2C, the lower legs 230 may include one or more lower leg openings 228B. The lower latch openings 228B may be positioned on the inner surfaces 240 of the lower legs 230. One or more of the lower latch openings 228B may be selectively aligned with one or more of the upper latch openings 228A. For example, the lower latch openings 228B may be separated in the direction and along the inner surface 240. Consequently, as the lower legs 230 are retracted or extended from the upper legs 226, the lower latch openings 228B may be aligned with the upper latch openings 228A. The height adjustment mechanism can be configured in an inactive configuration, which is represented in Figures 2A and 2C. In the inactive configuration, portions of the bolt arms can be positioned in the upper bolt openings 228A and the lower bolt openings 228B, which can be substantially aligned by extending or retracting the lower legs 230 with respect to the upper legs 226. The height adjustment mechanism can also be configured in an active configuration, which is shown in Figure 2B. In the active configuration, portions of the locking arms can be withdrawn from the lower locking openings 228B or from both the lower locking openings 228B and the upper locking openings 228A. The lower legs 230 can therefore be retracted or extended relative to the upper legs 226 because the locking arms of the height adjustment mechanism are not positioned in the lower locking openings 228B. When the lower legs 230 are positioned as desired, the height adjustment mechanism can be set to the inactive configuration, in which the locking arms are positioned in the upper locking openings 228A and the lower locking openings 228B. Consequently, the lower legs 230 are secured relative to the upper legs 226. In some embodiments, the first cavity 214A and the second cavity 214B can be sized such that the lower legs 230 can move substantially in the Y direction relative to the upper legs 226 under their weight. For example, with reference to Figures 1A-1D and 2A-2C, when the table 10 is being set up for use, the table 10 can change from the folded position of Figure 1D to the unfolded position of Figure 1C. The leg assemblies 200 can then be rotated from their storage positions. Figure 1C to a use position of Figure IB. The user can then place the table 10 on a surface, with the lower legs 230 retracted into the cavities 214A and 214B. The user can then apply force to the height adjustment mechanism to change the height adjustment mechanism from the inactive to an active position (e.g., to retract the locking arms from the lower leg openings). The user can then lift one side (e.g., 32A or 32B) of the table 10, including the leg assembly 200, in the active configuration. The lower legs 230 can drop down onto the surface without applying any force. A force can also be applied to position the lower legs 230 in a desired location.The user can then release the force from the height adjustment mechanism, to set the height adjustment mechanism to the inactive configuration, which can lock or engage the height adjustment mechanism to prevent further movement of the lower legs 230 with respect to the upper legs 226. With reference to Figures 1B and 2C, the first cross member 208 can include a first end 252 and a second end 254. The first end 252 can be placed on the first rail section 46A of the first side rail 42A and the second end 254 can be placed on the first > κ n cc N ​​rail section 48A of the second side rail 42B. Alternatively, the first end 252 can be placed on the second rail section 46B of the first side rail 42A and the second end 254 can be placed on the second rail section 48B of the second side rail 42B. The leg assembly 200 can therefore be rotated with respect to the first side rail 42A and the second side rail 42B, which can allow the transition of the leg assemblies 200 from the storage position of Figure 1C to the use position of Figures 1A and 1B. Figure 3A is an exemplary embodiment of the crossbar assembly 300 that can be implemented on table 10 and / or leg assembly 200. In Figure 3A, the crossbar assembly 300 is represented in an inactive configuration. Figure 3B illustrates the crossbar assembly 300 in an active configuration. The crossbar assembly 300 may include a crossbar housing 301, which may include a cover 302 and upper crossbar portions 800A and 800B of the crossbar housing 301. The upper crossbar portions 800A and 800B are generally referred to as upper crossbar portions 800 or upper crossbar portion 800. The crossbar housing 301 may define at least a portion of a cavity of the mechanism 310. The cavity of the mechanism 310 can be configured to house and contain one or more components of a height-adjustment mechanism 400 or portions thereof. Some additional details of the height-adjustment mechanism 400 are provided in any of the present description. The cover 302 can include a cover length 312 between a first end 314 and a second end 316. The cover length 312 can be dimensioned with respect to a leg assembly. For example, the cover length 312 can be dimensioned such that the crossbar housing 301 can be mechanically coupled to a first leg and first end 314 and to a second leg at the second end 316. For example, with combined reference to Figures 3A and 2A, the cover length 312 can be dimensioned such that the first upper leg 226 is mechanically coupled to the first end 314 and the second upper leg 226 is mechanically coupled to the second end 316. With reference again to Figures 3A and 3B, the crossbar housing 301 can be opened at the first end 314 and the second end 316, or it can define openings 318A and 318B at the first end 314 and the second end 316. Openings 318A and 318B can be aligned with the latch openings in the legs to which the crossbar housing 301 is attached. For example, with combined reference to Figures 3A and 2A The openings 318A and 318B can be aligned with the bolt openings 228A and 228B included in the first upper leg 226A and the second upper leg 226B to which the crossbar housing 301 is mechanically coupled. As shown in Figure 3A, the height adjustment mechanism 400 can be contained within the crossbar housing 301 and configured in an inactive position. In this inactive position, the latch portions 922 can be extended from the crossbar housing 301. With the latch portions 922 extended from the crossbar housing 301, they can be positioned in and / or engaged with a latch opening in the legs to which the crossbar housing 301 is mechanically attached. When the latch portions 922 are positioned in and / or engaged with the latch openings, they can prevent the retraction or extension of the leg portions (e.g., the lower leg 230) relative to other leg portions. As shown in Figure 3B, the height adjustment mechanism 400 contained in the crossbar housing 301 can be set to an active configuration. In the active configuration, the latch portions 922 can be removed from the crossbar housing. 301. With the 922 bolt portions removed in the > κ n In the crossbar housing 301, the bolt portions 922 can be disengaged from the bolt opening included in the legs to which the crossbar housing is mechanically attached. When the bolt portions 922 are disengaged from the bolt openings, the leg portions (for example, the lower leg 230) can be retracted or extended relative to the other leg portions. Figure 4A is an exemplary embodiment of the height adjustment mechanism 400 that can be implemented on the crossbar assembly 300 of Figure 3A in an inactive configuration. Figure 4A is described herein in conjunction with Figure 5A. Figure 5A is a detailed view of a portion of the height adjustment mechanism 400 in the inactive configuration. Figure 5A is a sectional view of the portion of the height adjustment mechanism 400. Figure 4B is the height adjustment mechanism 400 in an active configuration. Figure 4B is described herein in conjunction with Figure 5B. Figure 5B is a detailed view of a portion of the height adjustment mechanism 400 in the active configuration. Figure 5B is also a sectional view of the portion of the height adjustment mechanism 400. With reference to Figures 4A-5B, the height adjustment mechanism 400 may include one or more mechanism components such as an actuator 600, retractors 700A and 700B (generally, retractor 700 or retractors 700), a bias member such as a spring 505, one or more pins 506, and the latch arms 900A and 900B (generally, latch arms 900 or latch arm 900). Additionally, in Figures 4A and 4B, the height adjustment mechanism 400 is depicted with the upper crossbar portions 800A and 800B. In the height-adjustment mechanism 400, the retractors 700 may each include an inclined surface 704, a longitudinal surface 706, and a receiving structure 702. The locking arms 900 may each include a coupling structure 906 that can be coupled with, or is capable of being coupled with, the receiving structure 702 of one of the retractors 700. The locking arms 900 may extend laterally from the retractors 700. For example, a first locking arm 900A may extend from a first retractor 700A in a lateral direction corresponding to the positive x-direction of Figures 4A and 5A. Similarly, a second locking arm 900B may extend from a second retractor 700B in a lateral direction corresponding to the negative x-direction of Figures 4A and 5A. The first retractor 700A can be positioned with respect to the second retractor 700B such that the longitudinal surface 706 of the first retractor 700A faces the longitudinal surface 706 of the second retractor 700B. The spring 505 can be positioned between the longitudinal surface 706 of the first retractor 700A and the longitudinal surface 706 of the second retractor 700B. The spring 505 can be configured to impose a spring force that separates the first retractor 700A from the second retractor 700B. The actuator 600 may include angled lower surfaces 612. The actuator 600 may be positioned with respect to the refractors 700 such that the angled lower surfaces 612 face outward from the inclined surfaces 704. For example, the refractors 700 may be positioned such that the inclined surfaces 704 are between the angled lower surfaces 612. The angled lower surfaces 612 may be configured to make contact with the inclined surfaces 704. In particular, the angled lower surfaces 612 may be configured to make contact with the inclined surfaces 704 such that the translation or longitudinal movement of the actuator 600 affects the lateral translation of the retractors 700.For example, in response to a translation or longitudinal movement of the actuator 600 due to a force sufficient to overcome the spring force, the refractors 700 can be retracted toward each other in a lateral direction (e.g., the negative x-direction). Similarly, in response to the spring force acting to separate the retractors 700 in the lateral direction, the actuator 600 can be translated in the longitudinal direction (e.g., the y-direction). In Figures 4A and 5A, the height adjustment mechanism 400 is in the inactive configuration. In the inactive configuration, the actuator 600 cannot be subjected to a force, or can be subjected to a force of insufficient magnitude to transition the actuator 600 to the active position (described below with reference to Figures 4B and 5B). In the inactive configuration, the actuator 600 is in a first longitudinal position 403 with respect to the retractors 700. In the inactive position, the retractors 700 can be moved or positioned outwards. For example, the first retractor 700A can be moved in the positive x-direction, and the second retractor 700B can be moved in the negative x-direction, as shown in Figures 4A and 5A. The outward translation of the 700 retractors can result in an outward translation of the 900 bolt arms. For example, the first 700A retractor can be coupled with the first 900A bolt arm. The translation of the first 700A retractor in the positive x-direction can result in the translation of the first 900A bolt arm in the positive x-direction. Similarly, the second 700B retractor can be coupled with the second 900B bolt arm. The translation of the second 700B retractor in the negative x-direction can result in the translation of the second 900B bolt arm in the negative x-direction. The translation of the 900 bolt arms may result in the 922 bolt portions of the 900 bolt arms extending from the openings of a crossbar assembly, which can couple the bolt openings (e.g., 228A and / or 228B of Figures 2A-2C). In Figures 4B and 5B, the height adjustment mechanism 400 is in the active configuration. In the active configuration, the actuator 600 can be subjected to a force 401 that is insufficient to overcome the spring force imposed by the spring 505. In the active configuration, the actuator 600 is in an active position. In the active position, the actuator 600 can be placed in a second longitudinal position 405 with respect to the retractors 700. The second longitudinal position 405 can be closer to the retractors 700 and farther from the upper crossbar portions 800. In the active position, the 700 retractors can be moved inwards. For example, the first 700A retractor can be moved in the negative x-direction, and the second N C K The retractor 700B can be translated in the positive x-direction of Figures 4B and 5B. Inward translation of the retractors 700 can result in inward translation of the bolt arms 900. For example, the first retractor 700A can be coupled with the first bolt arm 900A. Translation of the first retractor 700A in the negative x-direction can result in translation of the first bolt arm 900A in the negative x-direction. Similarly, the second retractor 700B can be coupled with the second bolt arm 900B. Translation of the second retractor 700B in the positive x-direction can result in translation of the second bolt arm 900B in the positive x-direction.The translation of the bolt arms 900 can result in the bolt portions 922 of the bolt arms 900 being withdrawn in a crossbar assembly through the openings, which can disengage the bolt portions 922 from the bolt openings (e.g., 228A and 228B in Figures 2A-2C). While the bolt portions 922 are disengaged from the bolt openings, a lower leg can be retracted or extended. When the lower leg is retracted or extended to a desired length, the force 401 can be withdrawn or reduced, which can switch the height adjustment mechanism 400 to the inactive configuration. In the inactive configuration, the bolt portions 922 can be engaged in the bolt openings. As best illustrated in Figures 5A and 5B, in the exemplary embodiment, the actuator 600 may include two longitudinal pin openings 616. Furthermore, in these certain embodiments, the bolt arms 900 may each include a side pin opening 914. The side pin openings 914 may partially overlap one of the two longitudinal pin openings 616. Pins 506 may be positioned in one of the longitudinal pin openings 616 and one of the side pin openings 914. The pins 506 may confine the movement of the actuator 600 to a substantially longitudinal direction (e.g., the y-direction) and confine the movement of the bolt arms 900 to a substantially lateral direction (e.g., the x-direction). Figures 6A-6C illustrate an exemplary embodiment of the actuator 600 that can be implemented in the height adjustment mechanism 400 of Figure 4A. Figure 6A is an external perspective view of the actuator 600. Figure 6B is a sectional view of the actuator 600. Figure 6C is a bottom perspective view of the actuator 600. With reference to Figure 6A, the activator 600 may include a generally rectangular structure 601 with a projection 623 that may extend from an upper surface 603 of the rectangular structure 601. The rectangular structure 601 may include an activator length 607, an activator thickness 609, and an activator height 605. The projection 623 may be positioned at a central portion of the activator length 607. For example, the center of the projection 623 in a longitudinal direction may correspond to the center of the activator length 607. A projection length 631 may be less than the activator length 607. For example, the projection length 631 may be approximately half, approximately one-quarter, approximately one-third, approximately one-fifth, or another suitable proportion of the activator length 607. The projection 623 may extend through all or most of the actuator thickness 609. The actuator thickness 609 may correspond to a defined cavity width in a crossbar housing in which the actuator 600 can be placed. For example, with reference to Figure 3A, the crossbar housing 301 may define a mechanism cavity in which the height adjustment mechanism 400 can be placed or at least partially placed. The mechanism cavity may include a width that corresponds to, or may be substantially equal to, the actuator thickness 609. Accordingly, the actuator thickness 609 may be secured or retained in the mechanism cavity of the crossbar assembly 300. The height of actuator 605 can be related to a defined cavity height in a crossbar housing in which the actuator 600 can be positioned. For example, with reference to Figures 6A and 3A, the crossbar housing 301 can define the mechanism cavity in which the height-adjustment mechanism 400 can be placed or at least partially placed. The mechanism cavity can have a height greater than the height of actuator 605. Consequently, the actuator 600 can be moved longitudinally within the crossbar housing. For example, a user can press the protrusion 623, which can allow the actuator 600 to change position within the mechanism cavity. As described herein, the actuator 600 can be in an active position and an inactive position.In the active position, a force substantially oriented in the longitudinal direction can be applied to the protrusion 623, which can result in a translation or movement of the actuator 600 in a negative y direction. In the inactive position, the force can be removed from the protrusion 623, which can result in a translation or movement of the actuator 600 in a positive y direction. With reference to Figures 6A and 6B, the 600 actuator may include two longitudinal pin openings 616. Longitudinal pin openings 616 may > κ n cc K include a rounded rectangular opening. Longitudinal pin openings 616 may include a side dimension 618, which may be less than a longitudinal dimension 620. The longitudinal dimension 620 may correspond to or be substantially equivalent to a dimension of a pin (for example, pin 506) that can be placed in the longitudinal pin openings 616. The lateral dimension 618 may correspond to a distance over which the actuator 600 changes in response to a force imposed on the projection 623. The longitudinal pin openings 616 may limit the movement of the actuator 600 to movement that is substantially longitudinal. For example, the longitudinal pin openings 616 may prevent or substantially impede the movement of the actuator 600 in the lateral direction. With reference to Figures 6B and 6C, the actuator 600 can define a cavity 629. The cavity 629 can include a cavity width 627 (Figure 6C). The cavity width 627 can be sized to receive retractor portions. Some details of the cavity width 627 are provided elsewhere in this description. The side edges of the cavity 629 can be the angled lower surfaces 612. The angled lower surfaces 612 can be configured to make contact with the inclined surfaces of retractors that can be placed in the cavity 629. For example, with reference to Figures 6B, 6C, and 7B, an upper portion 722 that includes the inclined surface 704 can be placed in the cavity 629. When the upper portion 722 is placed in the cavity 629, the angled lower surfaces 612 can make contact with the inclined surfaces 704.Therefore, a force, such as the force imposed on the projection 623 in a longitudinal direction, can be transferred from the actuator 600 to the retractor 700. The force in the longitudinal direction can result in the lateral translation of the retractor 700. Similarly, a spring force, which can be a lateral force, imposed on the angled lower surfaces 612 by the retractor 700 can result in the translation or longitudinal movement of the actuator 600. With reference to Figure 6B, the projection 623 may include a height of the projection 621. The height of the projection 621 may be defined between an upper surface 603 of the rectangular structure 601 and an upper surface 653, or a portion thereof, of the projection 623. For example, in the embodiment shown, the projection 623 may include a concave upper surface 653. In these and other embodiments, the height of the projection 621 may be defined between the upper surface 603 of the rectangular structure. 601 and the upper surface 653 at one end 655. The height of the projection 621 can correspond to the height of an arched, rounded, or curved projection on a crossbar assembly or crossbar housing. In particular, the height of the projection 621 can be dimensioned such that the arched projection interacts gradually or consistently with the upper surface 653 of the projection 623. For example, with reference to Figures 6B and 8, the height of the projection 621 can be dimensioned relative to a height 810 of an arched projection 802 on a second end 806. The height of the projection 621 can be dimensioned such that when the second end 806 is positioned immediately adjacent to the projection 623, the surface of the arched projection 802 transitions to the upper surface 653 with little or no interruption. A benefit of this transition can include the prevention or reduction of incidental actuation of the actuator 600.Furthermore, the transition can reduce or prevent damage to the projection 623 through items impacting the projection 623. A view of the projection 623 assembled with the arched projection 802 is provided in at least Figures 4A and 3B. With reference to Figures 6A and 6C, in one depicted embodiment, the actuator 600 may include arm channels 651 extending from the cavity 629. The arm channels 651 may be configured to allow bolt arms to engage with retractors (e.g., the retractors 700 described elsewhere in this description) and extend from the cavity 629. Furthermore, the arm channels 651 may allow bolt arms with pin openings that can be aligned with the longitudinal pin openings 616. For example, with combined reference to Figures 6A, 6C, and 9, the bolt arm 900 may include side pin openings 914. The bolt arm 900 may be at least partially positioned in one of the arm channels 651. When positioned therein, the side pin openings 914 can be align with the longitudinal pin openings 616 such that there is some overlap.A pin (for example, pin 506) can then be placed in the side pin openings 914 and the longitudinal pin openings 616. Figures 7A-7C illustrate an exemplary embodiment of the 700 retractor that can be implemented in the 400 height adjustment mechanism of Figure 4A. Figure 7A is a sectional view of the 700 retractor. Figure 7B is a perspective view of the 700 retractor. Figure 7C is a side view of the 700 retractor. With combined reference to Figures 7A-7C, the retractor 700 may include the inclined surface 704, a longitudinal surface 706, a bottom surface 707, and a receiving structure 702. The inclined surface 704 > κ n cc K can be opposite to longitudinal surface 706. The <í superficie longitudinal 706 se puede orientar sustancialmente en una dirección longitudinal, que corresponde a la y de fiqura 7a.In some embodiments, when the retractor 700 is assembled into a height-adjustment mechanism such as the height-adjustment mechanism 400, the retractor 700 can be oriented with respect to another retractor such that the longitudinal surface 706 of the retractor 700 is oriented on a corresponding longitudinal surface of the other retractor. For example, the longitudinal surface 706 can be oriented substantially in the YZ plane of Figure 7A. The inclined surface 704 can have lower x-coordinates than the longitudinal surface 706 according to the coordinate system of Figure 7A. The other retractor 700 can also be oriented substantially in the YZ plane. However, the inclined surface 704 of the other retractor 700 can have higher x-coordinates than the longitudinal surface 706 of the other retractor 700. Figure 5B represents two retractors 700 in which the longitudinal surfaces 706 of the retractors 700 are oriented with respect to each other. In the configuration where the two retractors 700 face each other, the spring (for example, 505 in Figure 5A) can be placed between the longitudinal surfaces 706 of the retractors 700. In particular, the spring can make contact with the longitudinal surfaces 706 of the retractors 700. Consequently, a spring force, which can be generated by compressing the spring, can act on the longitudinal surfaces 706. In the embodiment shown, the retractor 700 may include a spring retainer 709. The spring retainer 709 may be configured to secure or partially secure the spring relative to the retractor 700. For example, in the embodiment shown, the spring retainer 709 may project from the longitudinal surface 706 in a lateral direction, corresponding to the x-direction in Figure 7A. The spring retainer 709 may be sized to be positioned within a volume defined by the spring coils. The spring retainer 709 may therefore prevent or reduce the movement of the spring along the longitudinal surface 706. In the embodiment shown, the spring retainer 709 may include a structure projecting from the longitudinal surface 706 and may be configured to be induced or placed on the spring. In other embodiments, the spring retainer may include a circular recess created in the longitudinal surface 706 in which the spring is placed, a fastener, or another suitable structure that limits the movement of the spring. In some models the 709 spring retainer can be omitted. The inclined surface 704 can be oriented at an angle 705 with respect to the bottom surface 707. The angle 705 can correspond to an angled bottom surface of an actuator. For example, with reference to Figure 6B, the angle 705 can be a complementary angle (e.g., the sum of the angles is 180 degrees) to angle 617 and / or can be substantially equivalent to angle 615 of the actuator 600. In an assembled configuration, the inclined surface 704 or a portion thereof can be in contact with the angled bottom surface of the actuator. Due to the contact between the angled bottom surface and the inclined surface 704, movement or translation of the actuator in the longitudinal direction can result in translation of the retractor 700 substantially in the lateral direction. For example, with reference to Figure 7A, a substantially normal force 701, or a force with a normal component, can be applied to the inclined surface 704. For example, the actuator can impose the normal force 701 on the inclined surface 704. The normal force 701 can include a longitudinal component and a lateral component. In addition, a lateral force 703 can be applied to the longitudinal surface 706. For example, the spring can impose the lateral force 703 against the surface. N C K Longitudinal K 706. In response to the normal force 701, which has a magnitude such that the lateral component is greater than the lateral force 703, the retractor 700 may move in a lateral direction, which may correspond to the positive x-direction. Also, in this circumstance, the actuator may move in a longitudinal direction, which corresponds to a negative y-direction. In response to the normal force 701, which has a magnitude such that the lateral component is less than the lateral force 703, the retractor 700 may move in a lateral direction, which corresponds to the negative x-direction. Also, in this circumstance, the actuator may move in a longitudinal direction, which corresponds to the positive y-direction. Translation of the retractor 700 can result in the translation of a bolt arm engaged in the receiving structure 702. With reference to Figures 7A and 7B, the receiving structure 702 can include a channel 710 extending from the sloped surface 704 to the bottom surface 707. A width 712 of the channel 710 can be configured to receive a bolt arm of a particular thickness. For example, the width 712 can be approximately 1.27 cm (one-quarter of an inch), 0.95 cm (three-eighths of an inch), or another suitable width. The receiving structure 702 can include an angled portion 714 (Figure 7A). c K K 7A) The angled portion 714 may include a first inner longitudinal surface 750. In response to translation of the retractor 700 in the positive x-direction, the first inner longitudinal surface 750 may press against or make contact with an inner longitudinal surface of a bolt arm engaged in the receiving structure 702. Translation of the retractor 700 may therefore result in translation of the bolt arm. For example, with combined reference to Figures 7A and 9, the first inner longitudinal surface 750 of the retractor 700 may press against or make contact with an inner longitudinal surface 950 of the bolt arm 900, which may result in translation of both the retractor 700 and the bolt arm 900. With continued reference to Figures 7A and 9, the receiving structure 702 may include a second inner longitudinal surface 752. In response to the translation of the retractor 700 in the negative x-direction of Figure 7A, the second inner longitudinal surface 752 may press against or make contact with an end of the bolt arm 900 engaged in the receiving structure 702. For example, the second inner longitudinal surface 752 of the retractor 700 may press against or make contact with a first end 908 of the bolt arm 900. The translation of the retractor 700 may therefore result in κ c K K bolt arm translation 900. With reference to Figure 7B, the retractor 700 may include a base 720 and a top portion 722. A width 724 of the base 720 may be greater than a width 726 of the top portion 722. The width 726 may correspond to a cavity configured to receive the top portion 722. For example, the actuator 600 of Figure 6C may include a cavity 629 that includes a cavity width 627. The cavity 629 may be sized to receive the top portion 722 of the retractor 700. Accordingly, the width of the cavity 627 may somehow be larger (for example, 0.42 cm (one-sixth of an inch), 0.317 cm (one-eighth of an inch)) than the width 726 of the top portion 722. In the mode of Figure 7B, the channel 710 may be defined as being in a central or substantially central portion of the upper portion 722. For example, the upper portion 722 may include some material on both sides of channel 710. In other embodiments, channel 710 may not be central to the upper portion 722. In these and other embodiments, the upper portion 722 may not include material on both sides of channel 710. Figure 8 represents an exemplary embodiment of the upper crossbar portion 800. The upper crossbar portion 800 can be implemented in the κ c K K crossbar assembly 300 of Figure 3A in some embodiments. The upper crossbar portion 800 may be a portion of a crossbar assembly housing. For example, the upper crossbar portion 800 of Figure 8 may be one side of the crossbar assembly housing. The housing may include another upper crossbar portion. For example, the housing may include another substantially similar upper crossbar portion 800 on another side of the housing. The upper crossbar portion 800 may include a top surface 808. The top surface 808 may be external to the crossbar assembly. The top surface 808 may be opposite an internal feature 814 that can be configured to interact with the side portions of a crossbar housing. The internal feature 814 may connect arm retainers 812 that can guide the bolt arms positioned in the crossbar assembly. The upper crossbar portion 800 may include an arched, rounded, or curved projection 802. The arched projection 802 may be included on the upper surface 808. The arched projection 802 may include a first end 804 and a second end 806. At the first end 804, the arched projection 802 may be co-planar or substantially co-planar with the upper surface 808. At the second end 806, the arched projection 802 may include a height 810 that is substantially equivalent to a height of the projection. For example, with reference to Figures 8 and 6A, the height 810 of the arched projection 802 may be substantially similar to the height of projection 621. As stated above, the arched projection 802 may facilitate the placement of a user's hand on a projection (for example, 623 in Figure 6A). The arched projection 802 may be positioned immediately adjacent to the projection. For example, the second end 806 may be positioned next to and / or around the projection. Figure 9 illustrates an exemplary embodiment of the 900 bolt arm according to at least one embodiment of the present description. The 900 bolt arm may generally include a strip of material. The material may include, for example, carbon steel or aluminum. In other embodiments, the material may include a plastic or polymer that can be coated or otherwise hardened. Additionally, the 900 bolt arm of Figure 9 may include a one-piece, unitary structure. In other embodiments, the 900 bolt arm may comprise two or more mechanically coupled substructures or components. The bolt arm 900 may include a length of arm 902 defined by a lateral dimension, corresponding to the x-direction in Figure 9. The length of arm 902 may be less than approximately half the length of a crossbar assembly in which the bolt arm 900 is implemented. For example, the crossbar assembly may include or contain the bolt arm 900, along with another bolt arm that is substantially similar to the bolt arm 900 and one or more additional adjustment mechanism components. The 900 bolt arm may also include an arm height 904. The arm height 904 may be defined in a longitudinal dimension, corresponding to the y-direction of Figure 9. The arm height 904 may be dimensioned such that the 900 bolt arm can be contained within the crossbar assembly or crossbar housing thereof. An arm thickness may be defined in the z-direction of Figure 9. The arm thickness may be approximately 0.635 cm (quarter inch), 0.95 cm (three-eighths inch), or another suitable thickness. The bolt arm 900 may include a coupling structure 906. The coupling structure 906 may be placed at the first end 908 of the bolt arm 900. The coupling structure 906 may be configured to be coupled with a receiver structure of a k c K K retractor. For example, the coupling structure 906 can be configured to be coupled with a receiving structure 702 of the retractor 700 of Figures 7A-7D. For example, in the embodiment shown, the coupling structure 906 can include a hook-shaped projection. The hook-shaped projection can be formed by removing a section 910 from the material of the bolt arm 900. The removed section 910 of the material can have a rectangular portion that connects to a triangular portion. The dimensions of the removed section 910 can substantially correspond to the receiving structure of the retractor. In other embodiments, the removed section 910 can include curved or angled portions, which can consequently result in a coupling structure 906 with a different shape. In the depicted configuration, when the coupling structure 906 engages with the receiving structure, a remaining portion 912 of the bolt arm 900 can extend laterally, which may correspond to the x-direction in Figure 9. Additionally, when the retractor moves laterally, the retractor or a portion thereof may contact an inner longitudinal surface 950. The retractor may press against or contact the inner longitudinal surface 950 to move the bolt arm 900. For example, in an active configuration, an actuator may cause the retractor to move. The retractor may then act on the inner longitudinal surface 950 to move the bolt arm 900. The latch arm 900 may include a portion of the latch 922. The latch portion 922 may be included at a second end 920 of the latch arm 900 that is opposite the first end 908 on the latch arm 900. The latch portion 922 may include a sloped bottom surface 924. The sloped bottom surface 924 may facilitate the insertion of the latch portion 922 into a latch opening of a table leg assembly (for example, the latch openings 228A and 228B of the upper leg 226 and / or the lower leg 230). The latch portion 922, or a portion thereof, may extend from a crossbar assembly when a height-adjustment mechanism implementing the latch arm 900 is in the inactive configuration.Also, when the height adjustment mechanism implemented by the 900 bolt arm is in the active configuration, the 922 bolt portion can be removed from the crossbar assembly, which can allow retraction and extension of a lower leg relative to an upper leg. The bolt arm 900 may include a side pin opening 914. The side pin opening 914 may include a rounded rectangular opening. The side pin opening 914 may include a side dimension 918, which is greater than a longitudinal dimension 916. The longitudinal dimension 916 may correspond to or be substantially equivalent to a dimension of a pin (for example, pin 506) that can be inserted into the side pin opening 914. The side dimension 918 may correspond to a distance that the bolt arm 900 moves in response to the movement of the retractor. The side pin opening 914 may limit the movement of the bolt arm 900 to movement that is in a substantially lateral direction. For example, the side pin opening 914 may prevent or substantially impede the movement of the bolt arm 900 in the longitudinal direction. Although this invention has been described in terms of certain preferred embodiments, other embodiments obvious to those skilled in the art are also within the scope of this invention. Accordingly, the scope of the invention is intended to be defined solely by the following claims. It is hereby stated that, as of this date, the best method known to the applicant for putting the present invention into practice is the one that is clear from the present description of the invention.

Claims

Having described the invention as above, the following claims are claimed as property:

1. A height adjustment mechanism, the height adjustment mechanism being characterized in that it comprises: a first locking arm including a first coupling structure; a first retractor including a first inclined surface and a first receiving structure, wherein the first receiving structure and the first coupling structure connect the first locking arm and the first retractor; a second locking arm including a second coupling structure; a second retractor including a second inclined surface and a second receiving structure, wherein the second receiving structure and the second coupling structure connect the second locking arm and the second retractor;an actuator including a first angled surface and a second angled surface, the first angled surface of the actuator in contact with the first inclined surface of the first retractor, the second angled surface of the actuator in contact with the second inclined surface of the second retractor, the first inclined surface of the first retractor and the second inclined surface of the second retractor being at least partially disposed between the first angled surface and the second angled surface of the actuator; a first longitudinal opening of the actuator; a second longitudinal opening of the actuator, the first angled surface of the actuator and the second angled surface of the actuator being at least partially disposed between the first longitudinal opening of the actuator and the second longitudinal opening of the actuator;and a thrust member disposed between the first retractor and the second retractor, the thrust member being sized and configured to push the first retractor and the second retractor away from each other.

2. The height adjustment mechanism according to claim 1, characterized in that the angled surfaces of the actuator are shaped such that a translation of the actuator towards the first and second retractors in a longitudinal direction causes the angled surfaces to move relative to the first and second inclined surfaces and draws the first and second retractors towards each other. RPRznn / zznz / E / YiAi 3. The height adjustment mechanism according to claim 1, characterized in that, in an inactive position, the actuator is arranged in a first longitudinal position with respect to the first retractor and the second retractor, the first retractor and the second retractor being separated by a first distance; and wherein, in an active position, the actuator is arranged in a second longitudinal position relative to the first retractor and the second retractor and the angled surfaces of the actuator make contact with the first inclined surface and the second inclined surface to cause the inward translation of the first retractor and the second retractor, the first retractor and the second retractor being separated by a second distance, wherein the second distance is less than the first distance.

4. The height adjustment mechanism according to claim 3, characterized in that at least a portion of the first retractor, at least a portion of the second retractor, at least a portion of the actuator, at least a portion of the first locking arm, and at least a portion of the second locking arm are arranged in a cavity of a crossbar assembly; wherein at least a portion of the first locking arm extends through a first opening of the crossbar assembly when the actuator is in the inactive position; and wherein at least a portion of the second locking arm extends through a second opening of the crossbar assembly when the actuator is in the inactive position.

5. The height adjustment mechanism according to claim 4, characterized in that the actuator includes a projection extending from the crossbar mounting cavity.

6. The height adjustment mechanism according to claim 5, characterized in that the crossbar assembly includes a projection; and wherein a height of the actuator projection is generally equal to a height of the crossbar assembly projection.

7. The height adjustment mechanism according to claim 1, characterized in that the push element contacts an inner surface of the first retractor and an inner surface of the second retractor.

8. The height adjustment mechanism according to claim 7, characterized in that it further comprises: a first thrust member retainer on the inner surface of the first retractor; and a second thrust member retainer on the inner surface of the second retractor, the thrust member disposed between the inner surface of the first retractor and the inner surface of the second retractor.

9. The height adjustment mechanism according to claim 1, characterized in that it further comprises two pins: wherein the actuator includes two longitudinal pin openings; wherein each of the first and second bolt arms includes a lateral pin opening that partially overlaps one of the two longitudinal pin openings; wherein each of the two pins is positioned in one of the longitudinal pin openings and in one of the lateral pin openings; and wherein the pins confine the movement of the actuator to a substantially longitudinal direction and confine the movement of the first and second bolt arms to a substantially lateral direction.

10. A leg assembly rotatably connected to a frame and a tabletop, the leg assembly characterized in that it comprises: a first leg subassembly including an upper leg having one or more upper latch openings and a lower leg having one or more lower latch openings, one or more of the lower latch openings selectively aligning with one or more of the upper latch openings; a second leg subassembly including an upper leg having one or more upper latch openings and a lower leg having one or more lower latch openings, one or more of the lower latch openings selectively aligning with one or more of the upper latch openings; a crossbar assembly positioned laterally between the first leg subassembly and the second leg subassembly,The crossbar assembly includes a first opening at a first end and a second opening at a second end; a height adjustment mechanism at least partially contained within the crossbar assembly, the height adjustment mechanism comprising: a first retractor including a first inclined surface and a first receiving structure; a second retractor including a second inclined surface and a second receiving structure; a first locking arm including a first coupling structure that engages with the first receiving structure of the first retractor; a second locking arm including a second coupling structure that engages with the second receiving structure of the second retractor; and an actuator including a first anchored surface, a second anchored surface, a first longitudinal opening, and a second longitudinal opening.the first angled surface of the actuator in contact with the first inclined surface of the first retractor, the second angled surface of the actuator in contact with the second inclined surface of the second retractor, the first inclined surface of the first retractor and the second inclined surface of the second retractor being at least partially disposed between the first angled surface and the second angled surface of the actuator, the first angled surface and the second angled surface of the actuator being at least partially disposed between the first longitudinal opening and the second longitudinal opening, the actuator being configurable in an inactive position to allow the first bolt arm and the second bolt arm to extend from the first opening and the second opening of the crossbar assembly,and in an active position in which the anchored surfaces make contact with the first inclined surface and the second inclined surface to cause the inward translation of the first retractor and the second retractor such that the RPRznn / zznz / E / YiAi first locking arm and the second locking arm are inserted into the crossbar assembly through the first and second openings.

11. The leg assembly according to claim 10, characterized in that the crossbar assembly is coupled to the first upper leg and the second upper leg in such a way that the first opening of the crossbar assembly is aligned with a first upper bolt opening of one or more upper bolt openings of the first upper leg and the second opening of the crossbar assembly is aligned with a first upper bolt opening of one or more upper bolt openings of the second upper leg.

12. The leg assembly according to claim 10, characterized in that the actuator includes a projection extending outwards from the crossbar assembly.

13. The leg assembly according to claim 12, characterized in that the actuator projection includes a height; wherein the crossbar assembly includes two projections; and wherein each of the two projections includes an end that is substantially co-plane with an end of the actuator projection when the actuator is in the RPRznn / zznz / E / YiAi inactive position.

14. The leg assembly according to claim 10, characterized in that it further comprises a thrust element: wherein the first retractor includes a longitudinal inner surface; wherein the second retractor includes a longitudinal inner surface; wherein the thrust element is situated between the longitudinal inner surface of the first retractor and the longitudinal inner surface of the second retractor; and wherein the thrust element is dimensioned and configured to apply a force that separates the first retractor and the second retractor.

15. The leg assembly according to claim 10, characterized in that the height adjustment mechanism further comprises two pins: wherein the actuator includes two longitudinal pin openings; wherein the first bolt arm and the second bolt arm each include a lateral pin opening that partially overlaps one of the two longitudinal pin openings; wherein each of the two pins is positioned in one of the longitudinal pin openings and in one of the lateral pin openings; and wherein the pins confine the movement of the actuator to a substantially longitudinal direction and confine the movement of the first and second bolt arms to a substantially lateral direction.

16. A folding table characterized in that it comprises: a tabletop that can be moved between a folded position and an unfolded position, the tabletop comprising: a first tabletop section; and a second tabletop section, the first tabletop section and the second tabletop section generally being aligned in the same plane when the tabletop is in the unfolded position, and the first tabletop section and the second tabletop section generally being placed adjacent and parallel to each other when the tabletop is in the folded position; a structure connected to the tabletop, the structure comprising: a first side rail including a first rail section connected to the first tabletop section and a second rail section connected to the second tabletop section;and RPRznn / zznz / E / YiAi a second side rail including a first rail section connected to the first tabletop section and a second rail section connected to the second tabletop section; a leg assembly rotatably coupled to the structure, the leg assembly comprising: a cross member connected to the first rail section of the first side rail and the first rail section of the second side rail; a first leg subassembly connected to the cross member, the first leg subassembly including an upper leg with one or more upper latch openings and a lower leg with one or more lower latch openings, wherein the one or more upper latch openings are selectively aligned with one or more of the lower latch openings;a second leg subassembly connected to the cross member, the second leg subassembly including an upper leg with one or more upper bolt openings and a lower leg with one or more lower bolt openings, wherein the one or more upper bolt openings are selectively aligned with one or more of the lower bolt openings; and a crossbar assembly disposed between the first leg subassembly and the second leg subassembly; and a height adjustment mechanism comprising: a first retractor including a first inclined surface and a first receiving structure; a second retractor including a second inclined surface and a second receiving structure; a first bolt arm including a first mating surface mating with the first receiving structure of the first retractor;a second bolt arm including a second mating surface that engages with the second receiving structure of the second retractor; a spring disposed between the first retractor and the second retractor, the spring sized and configured to apply a spring force that separates the first retractor and the second retractor from each other;and an actuator including one or more angled surfaces, wherein the angled surfaces are dimensioned and configured to contact the first inclined surface of the first retractor and the second inclined surface of the second retractor, the first inclined surface of the first retractor and the second inclined surface of the second retractor being disposed at least partially between the angled surfaces of the actuator, wherein the actuator includes a first elongated opening and a second elongated opening, wherein the angled surfaces of the actuator are disposed between the first and second elongated openings.

17. The folding table according to claim 16, characterized in that, when the actuator is in an inactive position, the first locking arm and the second locking arm extend from a first opening of the crossbar assembly and a second opening of the crossbar assembly, respectively; and the actuator, in an active position, causes the inward translation of the first retractor and the second retractor such that the first locking arm and the second locking arm are inserted into the crossbar assembly.

18. The folding table according to claim 16, characterized in that the crossbar assembly is connected to the first upper leg and the second upper leg in such a way that the first opening of the crossbar assembly is aligned with a first upper latch opening of one or more upper latch openings of the first upper leg and the second opening of the crossbar assembly is aligned with a first upper latch opening of one or more upper latch openings of the second upper leg.

19. The folding table according to RPRznn / zznz / E / YiAi claim 16, characterized in that the actuator includes a projection extending outwards from the crossbar; wherein the crossbar assembly includes two projections; and wherein each of the projections of the crossbar assembly includes an end that is substantially co-plane to an end of the actuator projection when the actuator is in an inactive position.

20. The folding table according to claim 16, characterized in that the height adjustment mechanism further comprises two pins; wherein the actuator includes two pin openings; wherein the first lock arm and the second lock arm each include a side pin opening that partially overlaps one of the two pin openings of the actuator; wherein each of the two pins is positioned in one of the pin openings and one of the side pin openings; and wherein the pins confine the movement of the actuator to a substantially longitudinal direction and confine the movement of the first and second lock arms to a substantially lateral direction.

Images