TW202035908A - Supporting device - Google Patents

Abstract

A supporting device includes a first support, a second support, a fixed washer, and a threaded fastener. The first support has a threaded structure and a first engaging structure. The threaded structure extends along a rotation axis. The second support is pivotally connected to the first support relative to the rotation axis and has a through hole aligning with the threaded structure. The fixed washer includes a washer portion and a second engaging structure. The washer portion is disposed on the second support and aligns with the through hole. The second engaging structure passes through the through hole to fit the first engaging structure. The threaded fastener presses against the washer portion and passes through the washer portion and the through hole to engage with the threaded structure. When the second support is rotated relative to the first support, the fixed washer and the first support can remain fixed relative to the rotation axis, so that the threaded fastener will not be rotated together with the second support.

Description

Support device

The present invention relates to a supporting device, in particular to a supporting device with movable joints.

Many supporting devices (for example, for supporting a display) use a multi-segment support structure to provide adjustable support for the display orientation. The brackets are usually connected in a pivotal manner and tightened with screws to fix the relative angle between the brackets. When the relative angle of the bracket needs to be adjusted, in principle, you need to loosen the screw first, then rotate the bracket to the required angle, and tighten the screw again to fix the bracket. Since the screws are mainly used to fix the pivotally connected brackets through friction, the brackets actually have to be forced to rotate relative to each other. At this time, the rotating bracket is likely to drive the screw to rotate, causing the screw to become loose, resulting in weakening or even failure of the fixing effect of the screw on the bracket.

In view of the problems in the prior art, one objective of the present invention is to provide a supporting device that utilizes the structure of the bracket and the washer to be engaged to keep the washer fixed relative to the bracket, thereby avoiding the problem of loosening of the bracket in the prior art.

The supporting device according to the present invention includes a first bracket, a second bracket, a fixing washer and a threaded fastener. The first bracket has a thread structure and a first engagement structure, and the thread structure extends along a rotation axis. The second bracket and the first bracket are pivotally connected with respect to the rotation axis and have a through hole. The fixed washer includes a washer portion and a second engaging structure, the washer portion is aligned with the through hole and arranged on the second bracket, and the second engaging structure passes through the through hole to engage with the first engaging structure Together. The threaded fastener tightly presses the washer portion and passes through the washer portion and the through hole to be connected with the threaded structure. Thereby, when the second bracket rotates relative to the first bracket, the fixed washer can be kept fixed with the first bracket relative to the rotation axis, so that the threaded fastener will not rotate with the second bracket. In other words, the supporting device according to the present invention can effectively solve the problem of loosening of the fixing screws due to mutual rotation of the brackets in the prior art.

The advantages and spirit of the present invention can be further understood from the following detailed description of the invention and the accompanying drawings.

Please refer to Figure 1 and Figure 2. According to an embodiment, a supporting device 1 is fixed to a table side 3 (shown in dashed lines in FIG. 1), and a screen 4 (shown in dashed lines in FIG. 1) is fixed and supported on the supporting device 1. The position and direction of the screen 4 can be adjusted through the supporting device 1. In this embodiment, the supporting device 1 includes a first support 12, a second support 14 and a third support 16. The first support 12 and the second support 14 are relative to a first rotation axis A1 (with a chain line (Shown in FIG. 1) pivotally connected, the first bracket 12 and the third bracket 16 are pivotally connected with respect to a second rotation axis A2 (shown in FIG. 1 with a chain line). The supporting device 1 is fixed by the second bracket 14 to support the screen 4 (for example, a fixing base conforming to the VESA fixed interface standard is provided), and is fixed to the table side 3 by the third bracket 16 (for example, the third bracket 16 has a C-shaped clip at one end) . Through the aforementioned pivoting mechanism, the projection position of the screen 4 on the X-Y plane can be adjusted.

In this embodiment, the second bracket 14 includes a pivot portion 142, a link portion 144, and a support portion 146. The second bracket 14 is pivotally connected to the first bracket 12 via the pivot portion 142, and the link portion 144 is connected The pivot portion 142 and the support portion 146 are rotatable relative to the pivot portion 142 with respect to a third rotation axis A3 (shown in FIG. 1 with a chain line). In this way, the projection position of the screen 4 on the Z axis can be adjusted. In practice, as shown in FIG. 3, the connecting rod portion 144 includes two connecting rods (the outline is shown in dashed lines), which are respectively pivotally connected to the pivoting portion 142 and the supporting portion 146 to form a quadrilateral parallelogram. The connecting rod enables the support portion 146 to maintain the same angular attitude as the pivot portion 142 via the connecting rod portion 144; that is, during the process of rotating the second support 14 relative to the first support 12, the screen 4 can maintain the same orientation (as shown in FIG. The horizontal orientation shown in 3).

Please also refer to FIGS. 4 to 6; in FIG. 6, to simplify the drawing, the second bracket 14 is represented by a single entity. Regarding the pivotal connection between the first bracket 12 and the second bracket 14, the first bracket 12 includes a frame body 122 and a protruding shaft 124 disposed at one end of the frame body 122, and the pivot portion 142 of the second bracket 14 includes a shaft groove 1422, the protruding shaft 124 matches the contour of the shaft groove 1422, and the shaft groove 1422 is rotatably sleeved on the protruding shaft 124 to realize the pivotal connection between the first bracket 12 and the second bracket 14. In addition, in this embodiment, the protruding shaft 124 includes a shaft body 1242 and a wear sleeve 1244. The wear sleeve 1244 is sleeved on the shaft body 1242 (for example, screwed on the shaft body 1242), and the shaft groove 1422 is rotatable The ground is sleeved on the wear sleeve 1244 to reduce the wear between the shaft groove 1422 and the shaft body 1242. In practice, the wear-resistant sleeve 1244 can be made of, for example, but not limited to POM, and the wear-resistant sleeve 1244 can have a slit 1244a, so that the wear-resistant sleeve 1244 can be sleeved on the shaft 1242.

In addition, the first bracket 12 also includes a threaded structure 126 and a first engaging structure 128. The threaded structure 126 is disposed on the shaft 1242 and extends along the first rotation axis A1 (or its screw shaft and the first rotation axis). A1 overlap), the first engagement structure 128 is arranged on the wear sleeve 1244. The wear sleeve 1244 has an opening 1244b through which the thread structure 126 is exposed. The pivot portion 142 of the second bracket 14 further includes a through hole 1424 formed in the shaft groove 1422 (or the bottom of the through shaft groove 1422) and aligned with the thread structure 126. The supporting device 1 further includes a fixing washer 18 and a threaded fastener 20. The fixed washer 18 includes a washer portion 182 and a second engaging structure 184 fixedly connected to the washer portion 182. The washer portion 182 is aligned with the through hole 1424 and is disposed on the pivot portion 142, and the second engaging structure 184 passes through the through hole 1424. To engage with the first engaging structure 128. The threaded fastener 20 compresses the washer portion 182 and passes through the washer portion 182 and the through hole 1424 to engage with the threaded structure 126, thereby preventing the shaft groove 1422 from being separated from the protruding shaft 124 (or preventing the separation of the first bracket 12 and the second bracket 14) , That is, the second bracket 14 is positioned on the first rotation axis A1.

Wherein, through the structural engagement of the first engagement structure 128 and the second engagement structure 184, the fixed washer 18 and the protruding shaft 124 (the wear sleeve 1244) are fixed in the direction of rotation relative to the first rotation axis A1 ( That is, the two will not rotate relative to the first axis of rotation A1), so that when the second bracket 14 rotates relative to the first bracket 12, the threaded fastener 20 pressed against the washer portion 182 will not rotate with it. In turn, the positioning effect of the threaded fastener 20 on the second bracket 14 can be maintained. In addition, in this embodiment, the fixing washer 18 is generally a T-shaped column as a whole, and the column body passes through the through hole 1424 and the opening 1244b. The second engaging structure 184 includes two protrusions, which extend perpendicular to the first rotation axis A1 (or protrude outward from the cylinder) and are arranged oppositely. The two protrusions and the washer portion 182 are located on both sides of the through hole 1424 in the first rotation axis A1. The first engaging structure 128 is structurally integrated with the wear-resistant sleeve 1244 (for example, integral injection molding) and includes two grooves corresponding to the two protrusions and located on the circumference of the opening 1244b; one of the grooves is solidified by one end of the slit 1244a The other groove is implemented by a notch on the side wall of the opening 1244b. But it is not limited to this in practice. For example, the cylinder of the fixed washer 18 has a non-circular cross-sectional profile (for example, polygonal, oval, etc.), and the cylinder is used as the second engaging structure 184; correspondingly, the opening 1244b also has a matching non-circular shape. The cross-sectional profile (which can produce structural restraint effects with the fixed washer 18, but not limited to the same) is directly used as the first engaging structure 128. These two structures can also produce structural engagement to produce the effect that the fixed washer 18 and the protruding shaft 124 do not rotate relative to the first rotation axis A1 as described above. For another example, the aforementioned first engagement structure 128 with the matching non-circular cross-sectional profile can also be formed on the shaft body 1242, which can also prevent the fixed washer 18 and the protruding shaft 124 from rotating relative to each other.

In addition, in this embodiment, the threaded structure 126 is implemented with a screw hole, and the threaded fastener 20 is connected with a stud (ie, the screw portion 204), but the implementation is not limited to this. For example, the threaded structure 126 is implemented as a stud provided in the blind hole (for example, a screw is structurally integrated with the first bracket 12 by embedding and exiting), and the threaded fastener 20 correspondingly includes a cylindrical body with a screw hole. The column can be inserted into the blind hole and the stud can be connected to the screw hole, and the threaded fastener 20 can also be locked to the first bracket 12.

In addition, in this embodiment, the supporting device 1 further includes a washer 22, which can be a general washer or a spring washer (such as but not limited to a dish washer, a wave-shaped washer, an open washer, etc.), which abuts against the washer portion 182 Between the threaded fastener 20 and the threaded fastener 20, the threaded fastener 20 is pressed against the washer portion 182 via the washer 22, as shown in FIGS. 2 and 6. The washer 22 helps the user to rotate the threaded fastener 20 when engaging and separating the threaded fastener 20 and the threaded structure 126. When the washer 22 is implemented as a spring washer, the compressed washer 22 also helps to maintain the connection between the threaded fastener 20 and the threaded structure 126, so that the threaded fastener 20 is not easy to loosen; at this time, in practice, the spring washer It can also be replaced by a spring. In addition, in this embodiment, the threaded fastener 20 includes an operating portion 202 and a screw portion 204 fixedly connected to the operating portion (for example, a screw is embedded in and out), and the threaded structure 126 is a screw hole. The screw portion 204 passes through the through hole 1424 and is screwed into the screw hole. The user can directly rotate the operating portion 202 by hand without tools to implement the engagement and separation of the threaded fastener 20 and the threaded structure 126. In this embodiment, the through hole 1424 is a counterbore, the washer portion 182 and the washer 22 are both received in the counterbore, and the operating portion 202 is partially received in the counterbore and exposed to the counterbore. The head hole is beautiful and easy to operate.

In addition, in this embodiment, in order to simplify the description, the pivotal connection between the first bracket 12 and the third bracket 16 is the same as the pivotal connection between the first bracket 12 and the second bracket 14, and will not be repeated. But the implementation is not limited to this. For example, the first bracket 12 and the third bracket 16 are pivotally connected by pin joints or in other ways. Moreover, as shown in FIG. 1, in this embodiment, the screen 4 is supported and fixed by the supporting device 1, and the position and direction of the screen 4 can be adjusted through the supporting device 1. Wherein, the first rotation axis A1 is parallel to the second rotation axis A2, and the first rotation axis A1 is perpendicular to the third rotation axis A3. The support portion 146 further provides adjustment relative to a fourth rotation axis A4 (also parallel to the first rotation axis A1). In this way, the user can substantially adjust the spatial position and orientation of the screen 4 through the supporting device 1. Wherein, the geometric relationship (including the relative position, the included angle, etc.) between the aforementioned rotation axes A1, A2, A3, and A4 may be determined according to actual applications, and will not be described in detail. In addition, although the supporting device 1 of this embodiment is fixed on the table side 3 and the supporting screen 4 as an example, the implementation is not limited to this. For example, the supporting device 1 can be appropriately modified to be fixed and supported on the wall or the ground (for example, one end of the third bracket 16 is modified to an anchor structure or a bracket seat structure). For another example, the supporting device 1 can be appropriately modified to support a stage (for example, as a working platform or to support other devices). The foregoing descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

1: Support device 12: The first bracket 122: Frame 124: Axes 1242: Shaft 1244: Wear-resistant sleeve 1244a: slit 1244b: opening 126: thread structure 128: The first engagement structure 14: Second bracket 142: Pivot 1422: Shaft groove 1424: Through hole 144: connecting rod 146: Support 16: third bracket 18: fixed washer 182: Washer part 184: The second engagement structure 20: Threaded fasteners 202: Operation Department 204: Screw part 22: Spring washer 3: table side 4: screen A1: The first axis of rotation A2: The second axis of rotation A3: Third axis of rotation A4: The fourth axis of rotation

Fig. 1 is a schematic diagram of a supporting device according to an embodiment. Figure 2 is a partial exploded view of the supporting device in Figure 1; Fig. 3 is a side view of the first bracket and the second bracket in Fig. 1. 4 is a schematic diagram of the fixing washer in FIG. 2 from another perspective. Figure 5 is a schematic diagram of the wear sleeve in Figure 2. Fig. 6 is a cross-sectional view of the supporting device in Fig. 1 along the line X-X.

1: Support device

12: The first bracket

122: Frame

124: Axes

1242: Shaft

1244: Wear-resistant sleeve

126: thread structure

128: The first engagement structure

14: Second bracket

142: Pivot

1424: Through hole

144: connecting rod

146: Support

16: third bracket

18: fixed washer

20: Threaded fasteners

202: Operation Department

204: Screw part

22: Spring washer

A2: The second axis of rotation

A4: The fourth axis of rotation

Claims (10)

A supporting device comprising: A first bracket having a thread structure and a first engagement structure, the thread structure extending along a first rotation axis; A second bracket, the second bracket and the first bracket are pivotally connected with respect to the first rotation axis and have a through hole, and the through hole is aligned with the thread structure; A fixing washer including a washer portion and a second engaging structure, the washer portion being aligned with the through hole and disposed on the second bracket, the second engaging structure passing through the through hole to communicate with the first The snap structure is snapped; and A threaded fastener which presses the washer part and passes through the washer part and the through hole to be connected with the threaded structure. The supporting device according to claim 1, wherein the first engagement structure is a groove, the second engagement structure includes a protrusion extending perpendicular to the first rotation axis, the protrusion and the washer portion Located on both sides of the through hole. The supporting device according to claim 1, wherein the first bracket includes a protruding shaft, the second bracket includes a shaft groove, the thread structure is disposed on the protruding shaft, the first engaging structure is disposed on the protruding shaft, the A through hole is formed in the shaft groove, and the first bracket and the second bracket are sleeved on the protruding shaft through the shaft groove to be pivotally connected. The supporting device according to claim 3, wherein the protruding shaft includes a shaft body and a wear sleeve, the wear sleeve is fixedly sleeved on the shaft body, the thread structure is arranged on the shaft body, and the first engaging The structure is arranged on the wear sleeve, and the shaft groove is sleeved on the wear sleeve. The supporting device according to claim 1, wherein the through hole is a counterbore, the threaded fastener includes an operating part and a screw part, the thread structure is a screw hole, and the screw part passes through the counterbore And screw-locked to the screw hole, the operating part abuts against the counterbore and is exposed in the counterbore. The supporting device according to claim 1, further comprising a washer, abutting between the washer portion and the threaded fastener, and the threaded fastener is pressed against the washer portion via the washer. The supporting device according to claim 1, further comprising a third bracket pivotally connected to the first bracket with respect to a second rotation axis. The supporting device according to claim 7, wherein the first rotation axis is parallel to the second rotation axis. The supporting device according to claim 1, wherein the second bracket includes a pivotal portion, a connecting rod portion, and a support portion, and the connecting rod portion connects the pivotal portion and the support portion and can be opposite to a third The rotating shaft rotates relative to the pivoting portion, the second bracket is pivotally connected to the first bracket via the pivoting portion, and the supporting portion maintains the same angular attitude as the pivoting portion via the connecting rod portion. The supporting device according to claim 9, wherein the first rotation axis is perpendicular to the third rotation axis.

Images