TWI816641B - Coupling, coupling system and monitor support for swivably coupling an arm to a post, in particular for coupling a monitor arm to a support - Google Patents

Abstract

A coupling for swivably coupling an arm to a post, the coupling in use cooperating with the post as an engaged element via a post interface, and with the arm as an engaged element via an arm interface, wherein the coupling including its interfaces provides limited relative rotational movement between the arm and the post about a swivel axis extending along a longitudinal axis of the post, wherein the limited rotational movement is provided in a rotational zone that corresponds to a single revolution about the longitudinal axis. The disclosure further relates to a coupling system, and to a monitor support.

Description

Coupling element, coupling system and monitor support for pivotably coupling an arm to a column, in particular for coupling a monitor arm to a support

This invention relates generally to couplings for pivotally coupling an arm to a column, and more particularly to couplings for coupling a monitor arm to a support, such as a monitor arm to a table. A coupling to the post of a monitor stand or wall monitor mount.

Monitor supports are well known and are used to position a monitor, typically a flat panel display, at a desired viewing position on a table or wall. Generally, a monitor support includes a post extending along a longitudinal axis, a monitor arm for supporting the monitor radially outwardly relative to the longitudinal axis of the post, and a coupling. When in use, the arm member is rotatably coupled to the column member by the coupling member. For example, the column may be supported on a table or wall directly by, for example, a clamp or a plate, or indirectly by another arm.

Monitor stands are actually quite complex in construction and may contain several pillars. A table-type monitor stand may for example comprise a first column implemented as a main column, which is supported by the table and pivotably carries the monitor arm via a coupling. Such a first column may include a mounting track such that in addition to the angle of rotation of the monitor arm, the position of the arm on the longitudinal axis of the column may also be set to position the monitor at Desired height above the table. A desktop monitor stand may also comprise a column, which may be embodied as an intermediate column, for example in the case of a connected monitor arm, which may comprise two arms, which may be The coupling member is pivotably connected to a common column member, for example to increase the reach of the bracket.

Also, since a monitor stand can have multiple monitor arms, for example, a single post implemented as a main post can carry two or more separate arms to allow for different monitors carried on the stand. Each can serve another table, or allow more monitors to be placed on a single table's composite viewing plane, so the monitor configuration can be further complicated. The columns need not always extend straight, but may also, for example, extend laterally, for example in the case where the monitor support is implemented as a wall mounting or a (cross) rod.

Typically, during manufacture or setup, a monitor support needs to be reconfigured so that its arms serve a specific area, for example, depending on the position of the stand on the table. This prevents the monitor from touching the back wall, or the left or right side walls during adjustment. Furthermore, it is also possible to prevent the monitor from reaching outside the service area and into another service area, for example, the service area adjacent to the table. This is typically accomplished by using complex mechanisms and specific components to control the swing of the arm around the column.

Often existing monitor supports need to be reconfigured so that their arms can serve new service areas, for example, when the stand is moved to a different location on a table, moved to a different table, or when the stand is When reconfigured to carry a different number of arms and/or monitors.

Because of this complexity, monitor arm mounts are quite expensive to manufacture and (re)configuration involves quite complex operations that often require the replacement of tools and/or parts. It is an object of the present invention to provide a coupling for pivotally coupling an arm to a column, in particular for pivotally coupling a monitor arm to a column of a monitor support, with which coupling Connectors can alleviate these problems. In particular, it is an object of the present invention to provide a coupling for pivotally coupling an arm to a column, allowing configuration and reconfiguration in a simple operation without the need for replacement and/or replacement of parts. or tools, and don’t cost a fortune to make. Furthermore, the present invention provides a coupling for pivotally coupling the arm to the column, the coupling in use cooperating with the column through the column interface as a coupling component, and by An arm interface cooperates with the arm as a coupling component, wherein the coupling including its interface provides limited relative rotational movement between the arm and the column about an axis of rotation along which extending about the longitudinal axis of the column, wherein the limited rotational movement is provided in a rotational region corresponding to a single rotation about the longitudinal axis.

By providing the coupling and/or its interface with limited relative rotational movement in a rotational region corresponding to a single rotation, a construction is achieved that is simple and allows for easy reconfiguration.

The limited relative rotational movement may be provided at one or both of the interfaces. Alternatively or additionally, the limited relative rotational movement may also be provided within the coupling itself.

The limited relative rotational movement provided by the coupling and its interface can be provided in a rotational sub-region that is less than a single rotation in one orientation of the coupling, and through the coupling The rotational sub-region corresponds to a single rotation of the member relative to the arm member and/or column member about its axis of rotation. In this case, the coupling may not complete a complete rotation in a specific orientation, but facilitate complete rotation by adjusting the orientation (selecting the working area from a rotary sub-region that corresponds in its entirety to a complete rotation).

A single rotation referred to here is approximately a complete rotation, which preferably corresponds to 360 degrees, but may actually be slightly larger or slightly smaller, for example, larger than 330 or 345 degrees, and smaller than 375 or 390 degrees.

The column interface and the arm interface may include rotational restraints which, in use, limit rotational movement of the interface relative to its coupling assembly about an axis of gyration extending along the longitudinal axis of the column . At least one of the column interface and the arm interface may include a non-fixed rotation limiter which, in use, couples its coupling assembly to a limited rotational travel to provide a rotational motion between the arm and the column. Limited relative rotation is allowed between the parts around the axis of rotation,

By providing a coupling that includes rotational limits on both the column and arm interfaces, at least one of which is non-stationary and has limited travel, the arm can be controlled fairly easily around the column. The parts can be convoluted and relatively inexpensive parts can be used to simplify (re)configuration.

The coupling may include a substantially cylindrical body portion extending along the axis of rotation. The radially inner sleeve surface of the body portion may be a component of the column interface, and the radially outer sleeve surface of the body portion may be a component of the arm interface. In this manner, the coupling may form a bushing disposed between the post and the monitor arm. This allows for simple and elegant construction. Such a coupling bushing can be produced from a plastic material, for example by injection moulding. The coupling bushing can be a single component, but can also be composed of several components. By configuring the other of the column interface and the arm interface to include a fixed rotation limiter (which in use rotationally fixedly couples its coupling component to prevent relative rotation about the axis of rotation), the coupling Parts can be provided with simple operation, and with the coupling, (re)configuration can be intuitive.

By configuring both the column interface and the arm interface to include non-stationary rotational limits, a coupling can be provided which can be easily achieved by aggregating the limited free travel at the interfaces between the two. Get a single, complete 360-degree rotation. Both non-stationary rotation limits may then have the same axis of rotation.

(Re)configuration can be further simplified by configuring the rotation limiter to adjust inversely between non-fixed and fixed positions.

By configuring the rotation limiter to include a protruding member, construction and (re)configuration can be further simplified. The protrusion may extend radially relative to the axis of rotation, for example, radially inward when disposed at the column interface, and radially outward when disposed at the arm interface. The protrusion may extend parallel to the axis of rotation. Elegantly, the protrusion may be implemented as a tab, which may be configured to couple at the interface with a corresponding slot in the coupling component, which slot may also extend parallel along the axis of rotation. The slot is sized in a direction of rotation about the longitudinal axis to receive the projection without play to form a fixed rotation limiter. Alternatively, the slot may be oversized in the rotational direction to receive the protrusion without movement to form a non-fixed rotation limiter with limited travel.

The coupling may include at least two protrusions, each with a slot, to increase stability. Advantageously, more slots can be provided than protrusions, so that each protrusion can be coupled to one of the more slots. This facilitates (re)configuration of the coupling without the need for replacement parts.

In particular, the coupling may be configured to couple the column to the arm in two or more separate rotational orientations about the axis of rotation relative to the arm and/or the column, each Each orientation allows limited relative rotation around the axis of rotation along different trajectories, corresponding to a rotating sub-region. In order to facilitate its separate rotational orientation, the coupling element can be coupled to the column at different positions around its axis, and/or it can be reversed up and down.

By implementing the rotation limiter to include a groove which in use co-operates with the coupling component at the interface by means of a moving element, a reliable non-stationary rotation limiter can be provided at low cost.

The action may be implemented as an intermediate component between the coupling components at the interface. Alternatively, the action may be a component of the coupling assembly at the interface, such as a finger.

Elegantly, the groove is the ball race and the moving part is the ball. In this way, a non-fixed rotation limiter can be provided that is inexpensive, has good operating properties, and can be easily made adjustable.

The groove may extend less than 360 degrees around the axis of rotation and may, for example, form an annular segment. The coupling may contain two or more such grooves, each having a different angular orientation relative to the axis of rotation.

The groove may also extend 360 degrees or more around the axis of revolution and may then form a spiral, for example.

The invention also relates to a coupling system comprising a post and an arm, and a coupling as discussed above. The system is sold in complete sets. In an assembled state, the post interface may couple to the post and the arm interface may couple to the arm.

The arm may be provided with a recess for receiving the arm interface of the coupling member. The arm may, for example, contain another coupling for receiving a monitor.

The arm may include an adjustable stop, such as one or more stop screws, that may be used to limit or prevent movement of the ball within the groove.

The column may be provided on another arm. In this way, a reliable connecting arm can be produced cost-effectively and can also be (re)configured in a simple manner, for example by lifting the coupling from the column along the axis of rotation, relative to The column rotationally reorients the column and pushes the coupling back down onto the column along the axis of rotation.

The post may be provided with clamps, for example in the case of a table mount.

The present invention also relates to a monitor support comprising at least one post extending along a longitudinal axis, a monitor arm for supporting the monitor radially outwardly relative to the longitudinal axis of the post, and as discussed above At least one coupling member by which the monitor arm member is pivotably coupled to the pillar member when in use.

The column member of the monitor support member may be implemented as a first column member and/or a middle column member.

The coupling member may be reliably retained in a hole in the monitor arm, for example, a substantially annular hole that in use at least partially surrounds the circumference of the post.

It should be noted that the technical features described in each of the above paragraphs can be implemented independently in the coupling, the coupling system or the monitor support, that is, isolated from the context of the paragraphs described elsewhere and separated from the contents of the other paragraphs. Features described, either in combination with some of the features described in the paragraph or only with one or selected features of such paragraph. In accordance with this disclosure, each of these features may therefore be combined in any combination with any other feature described.

1‧‧‧Table

2‧‧‧Monitor

3‧‧‧Swivel bracket

4‧‧‧Monitor support

5‧‧‧Table type clamps and clamps

6‧‧‧Pillar parts

7‧‧‧Slots

8‧‧‧The second column piece, the middle column piece, and the other column piece

9‧‧‧Arm, monitor arm

10‧‧‧Annular hole

11‧‧‧Coupling piece

12‧‧‧Arm interface

13: Column interface

14: Protruding parts

15:Protruding parts

17: Ring segment

18: Groove, spiral groove

19: Action pieces

20: Ball

21: Drop slot

23: Stop screw

25:Condition setter

26: finger piece

27:Screw

28: Installation cross

The invention will be further explained on the basis of non-limiting example embodiments presented in the drawings. In the drawings: Figure 1a shows a schematic exploded view of a first embodiment of the present invention for pivotally coupling an arm member to a column; Figure 1b shows a schematic cross-sectional view of Figure 1a, with the difference The point is that this embodiment is shown in an assembled state, in which the coupling member couples the arm member to the column member; Figure 2a shows the second method of the present invention for pivotally coupling the arm member to the column member. A schematic cross-sectional view of a first configuration of application of an embodiment; Figure 2b shows a schematic cross-section of a second configuration of application of the first embodiment of the present invention for rotatably coupling an arm member to a column member. ; Figure 2c shows a schematic cross-sectional view of the third configuration of the application of the first embodiment of the present invention for rotatably coupling the arm member to the column; Figure 2d shows a schematic cross-sectional view for rotatably coupling the arm member to the column; Schematic cross-sectional view of a fourth configuration of application of the first embodiment of the invention to a column; Figure 3a shows a schematic exploded view of a second embodiment of the invention for pivotally coupling an arm to a column Figure, in which the first column member has a wide slot as a non-fixed rotation limiter; Figure 3b shows a second configuration of the second embodiment of the invention for pivotally coupling the arm member to the column member. A schematic exploded view in which the second arm carrying the second column has been reconfigured 180 degrees; Figure 4a shows a schematic exploded view of the third embodiment of the invention for pivotally coupling the arm to the column. Figure 4b shows a schematic exploded view of a second configuration of a third embodiment of the present invention for pivotally coupling an arm to a column, wherein the configuration is kinematically upside down. , the second arm member carrying the second column member has been restructured 180 degrees; Figure 5a shows a schematic exploded view of the fourth embodiment of the present invention used to pivotally couple the arm member to the column member, in which the screw The linear groove contains an adjustable stop; Figure 5b shows a schematic cross-section of Figure 5a, the difference being that this embodiment is shown in an assembled state, in which the coupling member couples the arm member to the column; Figure 6a shows a schematic exploded view of a fifth embodiment of the present invention for pivotally coupling the arm to the column; Figure 6b shows a schematic cross-sectional view of Figure 6a, with the differences This embodiment is shown in an assembled state, in which the coupling member couples the arm member to the column member; Figure 7a shows the sixth method of the present invention for rotatably coupling the arm member to the column member. Schematic exploded view of the embodiment; Figure 7b shows the schematic cross-sectional view of Figure 7a. The difference is that the embodiment is shown in an assembled state, in which the coupling member couples the arm member to the column member. ; and Figure 8 shows a schematic exploded view of a seventh embodiment of the present invention for pivotally coupling an arm member to a column member, wherein the column member includes four slots.

It should be noted that the drawings only schematically present preferred embodiments of the present invention. In the drawings, identical or corresponding components are represented by the same reference numerals.

Referring to Figures 1a and 1b, a first embodiment of the invention is shown comprising a coupling 11 for pivotally coupling the arm 9 to the column 6. The coupling 11 cooperates with the column 6 via a column interface 13 as a coupling component, and cooperates with the arm 9 via an arm interface 12 as a coupling component. The coupling member 11 is held in a substantially annular hole 10 surrounding the perimeter of the column member 6 . The coupling 11 includes a substantially cylindrical body portion extending along the axis of rotation A and forming a single component bushing arranged between the column 6 and the monitor arm 9 .

The column interface 13 includes the radially outer sleeve surface of the column 6 and the radially inner sleeve surface of the body portion of the coupling member 11 . The arm interface 12 includes the radially outer sleeve surface of the body portion of the coupling member 11 and the radially inner sleeve surface of the arm 9 . Both the column interface 13 and the arm interface 12 include rotational restraints which, in use, limit the rotational movement of the interface relative to its coupling assembly about the axis of gyration A along which The longitudinal axis of the column 6 extends.

The rotation limiter on the column interface 13 is here a fixed rotation limiter including a protrusion 14 . The protruding part is implemented as a protruding part 15 extending radially inwardly from the inner sleeve surface of the coupling part 11 toward the rotational axis A. The protrusion 15 is configured to couple with a corresponding slot 7 of matching size in the column 6 , which slot 7 also extends parallel to the axis of rotation A.

The rotation limiter on the arm interface is here a non-fixed rotation limiter, which when in use is coupled to the arm with a limited rotational stroke, allows for rotation between the arm 9 and the column 6 Limited relative rotation about the axis of rotation.

The non-fixed rotation limiter includes a helical groove 18 on the outer surface of the coupling member 11 , which in use cooperates with the arm member 9 by a moving member 19 . The groove 18 is implemented as a ball race, which extends in a helical path of 360 degrees around the axis of rotation A and forms an annular segment. The movable part 19 is implemented as a ball 20, It remains in the drop slot 21 at the hole 10 of the arm. By the non-stationary rotational limit formed by the ball 20 and the groove 18, limited rotational movement is provided in a rotational region corresponding to a single rotation about the longitudinal axis A.

Referring to Figures 2a, 2b, 2c and 2d, there is shown the application of a first embodiment of the invention forming a monitor support 4 implemented as a monitor desktop mount. The monitor support 4 includes a column 6 provided with a clamp 5 . The table-type clamp 5 is substantially installed in the middle of the back of the table 1 . There is a mounting arrangement on the column 6 carried on the clamp 5 which corresponds essentially to the first embodiment discussed above, but differs in the use of two protrusions 14 and two Slot 7. The column member 6 on the clamp 5 forms the first column member 6 of the monitor support 4 , and the lower arm member 9 can be pivotably coupled around the first column member 6 by the first coupling member 11 catch. The end of the lower arm member carries the second column member 8 , and the upper arm member 9 is pivotably coupled around the second column member 8 through the second coupling member 11 to form a connected monitor arm member. The second coupling member 11 is identical to the first coupling member 11 (except for its height), and the middle column member 8 is configured similarly to the first column member 6 to match the coupling member 11 . The free end of the upper arm 9 carries another column 8 and the swivel bracket 3 carrying the monitor 2 .

Figure 2a shows a first configuration in which the groove 18 and the ball 20 of both the first and second coupling members 11 work together to limit rotation when the upper and lower arm members 9 overlap, that is , which work together to act as an end stop against further rotation. This can be used to protect the back wall when the monitor 2 in front of the user is pushed away (see arrow D). The lower arm 9 can freely move clockwise around the first column 6 up to 360 degrees, and the upper arm 9 can also move counterclockwise relative to the middle column 8 .

Figure 2b shows a second configuration corresponding to Figure 2a, but the difference is that the first coupling member 11 has been connected to the lower arm member 9 by lifting it away from the first column member 6 Together, they are rotated 180 degrees around the axis of rotation A relative to the column 6 and replaced on the column 6 to be repositioned. The upper arm 9 has been adjusted by rotating it 360 degrees around the middle column 8 so that it overlaps the lower arm 9 again, but now both arms 9 are positioned on the first column 6 on the left to replace what they did in Figure 2a on the right. The rotation limits now work together to limit the rotation equal to Figure 2a, that is when the arm 9 is in front of the user and the monitor 2 is pushed away. However, the lower arm 9 is now free to move 360 degrees counterclockwise around the first column 6 , while the second arm 9 is also free to move clockwise around the middle column 8 . The different conditions in the diagram can be seen by looking at the direction of the condition setter 25 and arrow D. Reconfigured and readjusted in this way, the connecting arm 4 can be configured for a specific situation without the use of tools or the use of different parts. Alternatively, the configuration of Figure 2a can be brought into the configuration of Figure 2b by changing the 180 degree repositioning into a 180 degree realignment step during assembly. In this case, the lower arm 9 will not be restricted in rotation, but will be given free clockwise rotational movement and will not be protected against movement to the rear wall.

Figure 2c shows a third configuration corresponding to Figure 2a, but the difference is that the monitor stand 4 has been relocated and its desk clamp 5 is in the left corner of the table 1. As an alternative to the clamp 5, the table can be provided with corner buckle mounts. This configuration further differs in that the upper arm 9 carried by the second column 8 has been lifted relative to the second coupling member 11 by lifting the second coupling member 11 upward from the second column 8 along the axis of rotation. The column 8 rotates around the axis of rotation A to reposition the coupling 11 to 180 degrees, and pushes the coupling 11 back down on the column 8 along the axis of rotation to restructure, The upper arm member 9 and the lower arm member 9 no longer overlap, but extend apart.

The rotation limiters now work together to limit rotation and protect the rear wall. The lower arm 9 can freely move 360 degrees clockwise around the first column 6 and can also move clockwise around the middle column 8 .

Figure 2d shows a fourth embodiment corresponding to Figure 2c, but the difference is that the structure is relocated and the table clamp 5 is in the right corner of the table 1. The configuration further differs in that the lower arm 9 carried by the first column 6 with the clamp 5 has been lifted upward from the first column 6 along the axis of rotation A. A coupling 11 , repositioning the coupling 11 rotationally about the axis of rotation A by 180 degrees relative to the column 6 , and pushing the coupling 11 back downwards along the axis of rotation A. The column member 6 is restructured. The upper arm 9, carried by the middle column 8 on the lower arm 9, has been readjusted during assembly. The readjustment has been accomplished by adjusting the rotational positioning of the upper arm 9 about the axis of rotation A by 360 degrees. The lower and upper arms 9 extend away as in Figure 2c, but now face to the left as they did in Figure 2c instead of to the right. The rotation limiters now work together to limit rotation and protect the rear wall. The lower arm member 9 can freely move counterclockwise 360 degrees around the first column member 6 and can also move counterclockwise around the middle column member 8 .

Referring to Figures 3a and 3b, a second embodiment of the present invention is shown, in which the non-fixed rotation limiter is formed at the interface 13 of the column through a slot 7 in the column 8. The slot 7 It is oversized in the direction of rotation and receives the protruding piece 15 to be movable. Together with the non-stationary rotation limit formed by the annular section 17 in the outer sleeve surface of the coupling 11 at the arm interface 12, a rotation limit with a compound stroke of 360 degrees is obtained . When the arms 9 overlap, rotation is limited.

Figure 3b shows the second configuration corresponding to Figure 3a, but the difference is that the upper arm member 9 carried by the column member 8 has been coupled from the column member 8 along the rotation axis A. Lift the coupling 11 upward, reposition the coupling 11 rotationally about the axis of rotation A by 180 degrees relative to the column 8, and push the coupling 11 back down along the axis of rotation A on the axis of rotation A. On the column member 8, it is restructured. The rotation limiter now works together to limit rotation as the arm is extended away without the use of tools or the use of identical parts.

Referring to Figures 4a and 4b, a third embodiment of the invention is shown, in which the configuration has been kinematically reversed: the non-fixed rotation limiter at the arm interface 12 is included in the coupling A radially outwardly protruding protrusion 15 on the outer sleeve of the body cooperates with an oversized slot 7 in the arm. The non-stationary rotation limiter at the column interface 13 consists of a ball race 17 in the column 8 whose balls 20 are retained in the inner sleeve of the bushing 11 from falling out. in slot 21. Similar to Figure 3a, when the arms 9 overlap, rotation is limited.

Figure 4b shows a second configuration corresponding to Figure 4a, but the difference is that the second (upper) arm 9 carried by the column 8 has been reconfigured 180 degrees. Similar to Figure 3b, the rotation limiters now work together to limit rotation as the arm 9 is extended away.

Referring to Figures 5a and 5b, a fourth embodiment of the invention is shown, in which the arm 9 contains a stop screw 23 as an adjustable stop. This fourth embodiment is a variation of the first embodiment and includes a helical groove 18 with an adjustable stop as a non-fixed rotation limit. The arm 9 contains a track with two set screws as stop screws 23 which serve to limit the movement of the ball 20 in the groove 18 . The set screws are available with manually operated heads so that they can be adjusted in a tool-less manner. By locking the ball 20 between the set screw 23, the rotation limiter can be adjusted inversely between a non-fixed position and a fixed position. As a simplification, a single set screw 23 can also be used. The end of the groove 18 may then form the second stop.

Referring to Figures 6a and 6b, a fifth embodiment of the invention is shown, in which the configuration is again reversed. Here, a slot 7 is provided in the arm sized to match the projection 15 extending from the body of the coupling at its outer sleeve to provide a fixed rotational limit at the arm interface 12 . At this column interface 13, a rotation limiter with a compound travel of 360 degrees is provided. A first non-fixed rotation limit is provided by a peripheral groove 17 at the top of the column 8, which cooperates with moving balls held in the inner sleeve surface of the coupling body. The peripheral groove 17 forms a circular segment of less than 360 degrees. A second non-fixed rotation limiter is formed by a peripheral groove 17 at the top of the inner sleeve surface of the coupling body, which second non-fixed rotation limiter also cooperates with the ball. The ball 20 is held in position by a top flange (not shown).

Referring to Figures 7a and 7b, a sixth embodiment of the invention is shown. Here, a slot 7 is provided in the arm 9 sized to match the projection 15 extending from the coupling body at its outer sleeve to provide a fixed rotational limit at the arm interface 12 . At this post interface 13, a non-fixed rotation limiter is provided with a travel of 270 degrees, as indicated by arrow D. In this way, the post 8 carries the fingers 26 which cooperate with the 270 degree slots in the top surface of the coupling 11 . The fingers 26 are removable using screws 27 and repositionable to be held on any of the four arms of the mounting cross 28 in the column 8 at the top surface where the fingers 26 are held.

Here, the limited relative rotational movement is provided in four rotational sub-regions, each with 270 degrees. Each of the rotary sub-regions is in an orientation of less than a single rotation of the coupling and is caused by the repositioning of the coupling 11 about its axis of rotation relative to the column 8 and the arm 9 Corresponds to a single rotation. By repositioning, the working area can thus be selected from rotating sub-areas that together correspond to a complete rotation.

Referring to Figure 8, a seventh embodiment of the present invention is shown, in which the column member 6 includes four slots 7 and a coupling member 11 that pivotally couples the arm member 9 to the column member 6. The coupling 11 includes a fixed rotation limiter at the column interface 13 , and the fixed rotation limiter includes two relatively radially inward extending projections 15 at the inner sleeve surface of the coupling body. . The protrusion 15 fits into the slot 7 in the column 6 and occupies two opposite slots 7 at the same time. The coupling 11 also includes a non-fixed rotation limiter at the arm interface 12. The non-fixed rotation limiter includes a 1/4 circumferential groove 17 on the outer sleeve surface of the coupling body. The 1 The /4 circumferential groove 17 cooperates with the arm 9 by means of the movable ball 20 held in the drop slot 21 in the arm 9 . In Figure 8, four identical couplings 11 and arms 9 are shown, which can be repositioned relative to the column 6 by rotating the coupling 11 about the axis of rotation A by 90 degrees. 11. The working area of the arm 9 can be selected from four 90-degree rotating sub-areas that together correspond to a complete rotation. Up to four arms 9 can be pivotably coupled to the column 6 using the same type of coupling 11, each arm having its own 1/4 circumferential service.

The coupling disclosed herein can be summarized as a coupling for pivotally coupling an arm to a column. The coupling includes a column interface and an arm interface. The column interface in use The arm interface co-operates with the arm as a coupling component when in use, wherein both the post interface and the arm interface include a rotation limiter, the rotation limit The member, when in use, limits rotational movement of the interface relative to its coupling assembly about an axis of gyration extending along the longitudinal axis of the column member. At least one of the column interface and the arm interface may include a non-fixed rotation limiter which, in use, couples its coupling assembly to a limited rotational travel to allow the arm and column limited relative rotation around the axis of rotation.

The invention is not limited to the exemplary embodiments presented here but encompasses variations. For example, the coupling may be assembled into a variety of pieces and may be constructed, for example, from two parts that work together via wedge-shaped surfaces as described in PCT/NL2016/050798 . Furthermore, the angle values in question may be chosen differently, and the shape and configuration of the arms and posts may be varied. Examples of monitor arm support shapes and configurations are also described in PCT/NL2016/050798. Such variations will be apparent to those skilled in the art and are considered to fall within the scope defined in the patent claims of this invention.

6: Column parts

7:Slot

8: The second column, the middle column, and the other column

9: Arm parts, monitor arm parts

10: Annular hole

11:Coupling piece

12: Arm interface

13: Column interface

14: Protruding parts

15:Protruding parts

18: Groove, spiral groove

19: Action pieces

20: Ball

21: Drop slot

Claims (13)

A coupling for pivotally coupling an arm to a column, the coupling including a substantially cylindrical body portion forming a bushing disposed between the column and the arm and in use by the column The interface cooperates with the column member as a coupling component, and the arm member operates with the arm member as a coupling component, wherein the coupling member including the column member interface and the arm member interface is in the Limited relative rotational movement is provided between the arm and the column about an axis of gyration extending along the longitudinal axis of the column, wherein the limited relative rotational movement is provided in a rotational region corresponding to A single rotation about the axis of rotation, wherein at least one of the column interface and the arm interface includes a rotation limiter that limits at least one of the column interface and the arm interface when in use The limited relative rotational movement about the axis of rotation with respect to their respective coupling components, wherein the single rotation is greater than 330 degrees and less than 390 degrees, and wherein the column interface includes the radially outer sleeve surface of the column and a radially inner sleeve surface of the body portion of the coupling, wherein the arm interface includes a radially outer sleeve surface of the body portion of the coupling and a radially inner sleeve surface of the arm, and wherein , the coupling member is configured to couple the column member or the arm member relative to the arm member or the column member in two or more axial rotational positions about the slewing axis, so as to couple the column member or the arm member from the two The first of or more axial rotational positions decouples the coupling from the column or arm and axially rotates the coupling relative to the column or arm to the two or A second of more axial rotational positions, in turn, couples the column and the arm to provide corresponding axial rotation of the rotational region and the rotational limiter. The coupling as claimed in claim 1, wherein the limited relative rotational movement is provided in a rotary sub-region that is less than the single rotation in one orientation of the coupling. , and through the adjustment position of the coupling member relative to the arm member and/or the column member around the rotation axis, the rotary sub-regions together correspond to the single rotation. The coupling as claimed in claim 1, wherein at least one of the column interface and the arm interface includes a rotation limiter of a non-fixed rotation limiter, and the non-fixed rotation limiter is used The coupling assembly is coupled with a limited rotational stroke to allow the limited relative rotational movement around the rotational axis between the arm member and the column member. The coupling as described in item 3 of the patent application, wherein the other one of the column interface and the arm interface includes a rotation limiter of a fixed rotation limiter, the fixed rotation limiter rotates during use The coupling components are permanently coupled to prevent relative rotation about the axis of rotation. The coupling member as claimed in claim 1, wherein the rotation limiting member includes a protruding member. As claimed in claim 1 of the patent application, the coupling member, wherein the rotation limiting member includes a groove, the groove cooperates with the coupling component through a movable member during use. The coupling member as described in item 1 of the patent application, wherein the coupling member is configured relative to the arm member and/or the column member around the rotation axis. Two or more separate rotational orientations couple the column and the arm, each orientation allowing limited relative rotation about the axis of rotation along a different trajectory. A coupling system includes a column member, an arm member, and a coupling member as described in any one of items 1 to 7 of the patent application. As in the coupling system described in claim 8 of the patent application, the arm member is provided with a recess for receiving the arm member interface of the coupling member. The coupling system according to claim 8 or 9, wherein the arm member includes an adjustable stopper. The coupling system as described in claim 8 or 9 of the patent application, wherein the column member is provided on another arm member. The coupling system as described in claim 8 or 9 of the patent application, wherein the column is provided with a clamp. A monitor support including at least one column extending along a longitudinal axis, a monitor arm for supporting a monitor radially outwardly relative to the longitudinal axis of the column, and as claimed in claim 1 to the coupling member described in any one of items 7 or the coupling system described in any one of items 8 to 12 of the patent application scope, the monitor arm is used with the coupling member or the coupling system The coupling system is pivotably coupled to the post.

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