Reversible armrest and console assembly having the same

Abstract

The present application relates to a kind of reversible handrails and console assembly with the reversible handrails, the reversible handrails include shell, button system, hinge system, the button system and hinge system are installed in shell;The hinge system includes hinge shaft, the reversible handrails can rotate around the hinge shaft and can be positioned in first position, second position and third position;In first position, the reversible handrails is located in downward folding position;In second position, the reversible handrails is located in horizontal forward position;In third position, the reversible handrails is located in horizontal backward position.The present application also provides a kind of console assembly with the reversible handrails.

Description

Technical Field

[0001] The invention relates to a foldable armrest, and more particularly to a foldable armrest for a vehicle and a console assembly having the foldable armrest. Background Technology

[0002] Typically, the console components in a vehicle include storage compartments positioned between the driver's seat and the front passenger seat for temporary storage of items, and armrests positioned on the console storage compartments act as lids and simultaneously allow passengers seated in the vehicle to comfortably rest their arms on them.

[0003] Figures 1-2 The diagram shows a console assembly used in the prior art, which includes a storage compartment and an armrest that serves as the lid of the storage compartment, the armrest being rotatable by 90° (i.e., Figure 2 (The α angle) is used to open the storage box, which provides storage space.

[0004] The problem with armrests in existing console components is that they lack a place for rear passengers to put items such as cups or telephones. Furthermore, when the armrest is closed, the console component needs to support it, which takes up a significant amount of space.

[0005] Therefore, there is a need for further improvement of the existing console components and their armrests.

[0006] The information disclosed in the background section of this invention is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0007] To address the problems existing in the prior art, the present invention provides a flip-up handrail and a console assembly having the flip-up handrail, which saves space for placing items in the console assembly by rotating the handrail.

[0008] In addition, the flip-up armrest and the console assembly having the flip-up armrest of the present invention not only provide convenience for front-seat passengers to place items, but also provide convenience for rear-seat passengers to place items.

[0009] To address the aforementioned problems, the present invention provides a foldable handrail, comprising a housing, a button system, and a hinge system, wherein the button system and the hinge system are mounted within the housing; wherein the hinge system includes a hinge axis, and the foldable handrail is rotatable about the hinge axis and can be positioned in a first position, a second position, and a third position; in the first position, the foldable handrail is in a downward folded position; in the second position, the foldable handrail is in a horizontally forward position; and in the third position, the foldable handrail is in a horizontally backward position.

[0010] Preferably, the housing is formed by an upper armrest cover and a lower armrest cover, and the front of the housing is provided with an opening.

[0011] Preferably, the button system includes a button and a cable, the button being located in the opening and the cable being pulled by pressing the button.

[0012] Preferably, the button system further includes a button lever, a lever, and a button spring; wherein one end of the button lever is mounted on the rear of the button, and the other end is connected to the button spring, the button spring applying a forward restoring force to the button lever; the button lever is provided with a groove; the lever is rotatably mounted, and one end of the lever is mounted in the groove of the button lever while the other end is connected to a first end of a cable.

[0013] Preferably, the button system further includes a button cover and a button plate, wherein the button, button lever, lever, and button spring are mounted on the button plate, and the button cover covers the button, button lever, lever, and button spring from above.

[0014] Preferably, the hinge shaft includes a cam with three steps, each step including an arc portion and a step portion; wherein the step portion extends substantially radially, while the arc portion extends from the upper step to the lower step.

[0015] Preferably, the step includes a first step, a second step, and a third step, wherein the first step includes a first arc portion located at the bottom of the cam and a first step; the first step includes a second step located at the top, and a second arc portion extending from the bottom of the first step to the top of the second step, the diameter of the second arc portion increasing as the arc gradually approaches the second step; the third step includes a third step located at the rear of the cam and a third arc portion extending between the bottom of the second step and the bottom of the third step, the diameter of the third arc portion remaining approximately constant.

[0016] Preferably, the hinge system further includes a hinge plate, a support assembly, a locking key assembly, and a brake wheel assembly; the support assembly, the locking key assembly, and the brake wheel assembly are mounted on the hinge plate, and the hinge shaft is mounted on the brake wheel assembly.

[0017] Preferably, the support assembly includes a brake wheel upper cover and a brake wheel lower cover; the brake wheel upper cover has an opening on its forward-facing side.

[0018] Preferably, the brake wheel assembly includes a brake wheel and a brake wheel pad; the hinge shaft passes through the brake wheel and is fixedly connected to the brake wheel; the brake wheel pad is mounted on the support assembly and is in frictional contact with the brake wheel.

[0019] Preferably, the brake wheel and brake wheel pad are made of friction material.

[0020] Preferably, the locking key assembly includes a locking key, a locking key cover, and a locking key spring; the locking key cover is mounted on the brake wheel cover; the locking key is mounted on the locking key cover; one end of the locking key is connected to a cable, and the other end can engage with a step of a cam; the locking key spring applies a force toward the step to the locking key.

[0021] Preferably, the locking key includes a body and a guide rod, the body being housed in a locking key cover and passing through an opening in the brake wheel cover to engage with a step of a cam; the guide rod extends from the locking key cover, and the locking key spring is mounted on the guide rod.

[0022] The present invention also provides a console assembly comprising: a console; a reversible armrest as described above; and a connecting device for mounting the armrest to the console.

[0023] Preferably, the connecting device includes a mounting hinge bolt through which the handrail assembly is mounted to the control panel.

[0024] The flip-up armrest of the present invention can be rotated around a hinge axis, so that it can be located in different positions, thus allowing it to be used by rear passengers in addition to front seat passengers, and saving space for the console components when folded.

[0025] The methods and apparatus of the present invention have other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the particular principles of the invention. Attached Figure Description

[0026] Figure 1 A schematic diagram of a handrail in the prior art is shown.

[0027] Figure 2 A schematic diagram of an armrest in a console component in the prior art is shown, wherein the armrest can be opened and closed, and in the open state shown by the dashed line, the storage space underneath can be exposed.

[0028] Figure 3 This is a schematic diagram of the use state of a flip-up handrail according to an exemplary embodiment of the present invention, wherein the flip-up handrail is in a stowed state.

[0029] Figure 4 This is a schematic diagram of the use state of a flip-up armrest according to an exemplary embodiment of the present invention, wherein the flip-up armrest is in a state for use by the occupants of the front seats.

[0030] Figure 5 This is a schematic diagram of the use state of a flip-up armrest according to an exemplary embodiment of the present invention, wherein the flip-up armrest is in a state for use by rear seat occupants.

[0031] Figure 6 An exploded perspective view of a console assembly with a reversible armrest according to an exemplary embodiment of the present invention.

[0032] Figure 7 An exploded perspective view of a reversible armrest according to an exemplary embodiment of the present invention.

[0033] Figure 8 This is an exploded perspective view of the locking key assembly of the present invention.

[0034] Figure 9 This is an exploded perspective view of the hinge system of the present invention.

[0035] Figure 10 This is a top view of the hinge system and button system of the present invention, wherein the hinge plate and button cover have been removed.

[0036] Figure 11 for Figure 10 A cross-sectional view taken along section line AA.

[0037] Figure 12 This is a schematic diagram of the flip-up armrest of the present invention in a position for use by the front seat occupants, wherein the locking button is in a locked state.

[0038] Figure 13 This is a schematic diagram of the flip-up armrest of the present invention in a position for use by the front seat occupants, wherein the lock button is in the unlocked state.

[0039] Figure 14 This is a schematic diagram of the reversible armrest of the present invention in its stowed position.

[0040] Figure 15 This is a schematic diagram of the flip-up armrest of the present invention in a position for use by rear seat passengers.

[0041] Figure 16 This is a spatial diagram showing the usable space in the control panel assembly when the reversible armrest of the present invention is in the stowed position.

[0042] Figure 17 This is a schematic diagram of the usable space in a console component in the prior art.

[0043] Figure 18 This is a schematic diagram of the usage state of a console component having an exemplary embodiment of the present invention, wherein the flip-up armrest is in a state for use by people in the front row.

[0044] Figure 19 This is a schematic diagram of the usage state of a console component having an exemplary embodiment of the present invention, wherein the flip-up armrest is in a state for use by rear passengers.

[0045] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of the invention. Specific design features disclosed in this invention (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific environment in which they are intended for application and use.

[0046] Throughout these figures, the same reference numerals denote the same or equivalent parts of the invention. Detailed Implementation

[0047] Reference will now be made in detail to various embodiments of the invention, examples of which are presented in the accompanying drawings and described below. Although the invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the invention to these exemplary embodiments. Rather, the invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit of the invention and the scope defined by the appended claims.

[0048] The following is combined Figures 3-19 The reversible armrest of the present invention will be described.

[0049] The flip-up handrail of the present invention includes a housing, a button system, and a hinge system, wherein the button system and the hinge system are installed inside the housing.

[0050] The hinge system includes a hinge axis, around which the flip-up armrest can rotate and be positioned in a first position, a second position, and a third position. In the first position, the flip-up armrest is in a downward folded state; in the second position, the flip-up armrest is in a horizontal forward state; and in the third position, the flip-up armrest is in a horizontal backward state.

[0051] like Figure 7As shown, the flip-up armrest of the present invention includes: an upper armrest cover A-1, a button system A-2, a hinge system A-3, and a lower armrest cover A-4. The upper armrest cover A-1 and the lower armrest cover A-4 are joined together to form a housing to accommodate the button system A-2 and the hinge system A-3.

[0052] like Figure 8 and Figure 10 As shown, the button system A-2 includes a button 1, a button lever 2, a lever 3, a button spring 4, a cable 5, a button cover 6, and a button plate 7.

[0053] The button 1, button lever 2, lever 3, button spring 4, and cable 5 are mounted on the button plate 7. The button cover 6 covers the button 1, button lever 2, lever 3, button spring 4, and part of the cable 5 from above, thereby protecting these components from foreign objects entering and affecting the operation of the button system.

[0054] Button 1 is located at the opening at the front end of the housing formed by the upper cover A-1 and the lower cover A-4 of the armrest. The operator can press button 1 to operate the armrest.

[0055] The front end of button lever 2 is connected to the rear end of button 1, and the rear end of button lever 2 is connected to button spring 4. Button lever 2 can move back and forth with button 1, and button spring 4 applies a restoring force to button lever 2 toward the button (i.e., forward). A groove is formed in the middle of button lever 2, and one end of lever 3 is inserted into this groove.

[0056] The lever 3 is rotatably mounted on the button plate 7 via a pin (not shown), one end of which is inserted into the groove of the button lever 2, and the other end is connected to one end of the cable 5, the other end of which is connected to the key lock assembly to be described later.

[0057] When button 1 is pressed, button 1 moves button lever 2 backward together. As button lever 2 moves backward, the groove of button lever 2 causes lever 3 installed therein to rotate, thereby pulling cable 5 located at the other end of lever 3.

[0058] like Figure 9 and Figure 10 As shown, the hinge system includes a hinge plate, a support assembly, a locking key assembly, a brake wheel assembly, and a hinge shaft. The support assembly, locking key assembly, and brake wheel assembly are mounted on the hinge plate 24, while the hinge shaft is mounted on the brake wheel assembly. During use, the other components rotate around the hinge shaft, thereby enabling the armrest to flip.

[0059] The support assembly includes a brake wheel upper cover 23 and a brake wheel lower cover.

[0060] An opening is provided on the front side of the brake wheel cover 23.

[0061] The brake wheel cover 23 is mounted on the hinge plate 24 via a center pin 14. The hinge plate 24 has an upwardly protruding lug with a hole, and the side of the brake wheel cover 23 also has a hole. The center pin 14 passes through the hole in the lug and the hole in the brake wheel cover 23, and is then locked at the end of the center pin 14 by an E-ring 13, thereby mounting the brake wheel cover 23 onto the hinge plate.

[0062] The upper cover 23 of the brake wheel, together with the lower cover of the brake wheel, forms a support for supporting the brake wheel. The lower cover of the brake wheel includes a right lower cover 15 and a left lower cover 16, which are mounted on the hinge plate 24.

[0063] The key locking assembly includes: key locking spring 8, key locking cover 9, and key locking 10.

[0064] The locking cover 9 is installed at the opening of the brake wheel cover 23, and the locking key 10 is installed inside the locking cover 9 and can move back and forth inside the locking cover 9.

[0065] The locking key 10 includes a body and two guide rods. The body is arranged in the space inside the locking key cover 9 and enters the brake wheel cover 23 through an opening therein, thereby engaging with the cam of the hinge shaft 12, which will be described later. The two guide rods extend through openings in the locking key cover 9, and a locking key spring 8 is mounted on the portion of the guide rods extending out of the locking key cover 9. The locking key spring 8 provides a restoring force to the locking key 10 toward the brake wheel cover 23.

[0066] The other end of the cable 5 is connected to the locking key 10, so that when the button 1 is pressed, the cable 5 moves and drives the locking key 10 forward, disengaging it from the cam of the hinge shaft 12. When the button 1 is released, under the action of the button spring 4, the button 1 returns to its original position, and the locking key 10 moves backward under the restoring force of the locking key spring 8 and presses against the cam of the hinge shaft.

[0067] A cam is provided in the middle portion of the hinge shaft 12. The body on the locking key 10 can press against the outer surface of the cam. Although two cams are provided in the embodiment shown in this invention, one cam or another number of cams, such as 3-5, may also be provided.

[0068] See Figures 12-15 The cam has three steps, each consisting of an arc portion and a step portion. The step portion extends substantially radially, while the arc portion extends from the previous step to the next step.

[0069] The first step includes a first arcuate portion located at the bottom of the cam and a first step. The first arcuate portion extends between the top of the first step and the top of the third step (described later) and contacts the inner circumference of the support assembly. The diameter of the first arcuate portion remains substantially constant. The second step includes a second step located at the top and a second arcuate portion extending from the bottom of the first step to the top of the second step. The diameter of the second arcuate portion increases as the arcuate portion approaches the second step, so that the second arcuate portion does not impede the movement of the locking key 10 when it passes over the second arcuate portion. The third step includes a third step located at the rear of the cam and a third arcuate portion extending between the bottom of the second step and the bottom of the third step. The diameter of the third arcuate portion remains substantially constant, so that the third arcuate portion does not impede the movement of the locking key 10 when it passes over the third arcuate portion.

[0070] The flip-up armrest can rotate about hinge axis 12 while hinge axis 12 remains stationary. The armrest can be positioned in a first position, a second position, and a third position. In the first position, the flip-up armrest is in a folded-down storage state (see...). Figure 14 In the second position, the flip-up armrest is in a horizontal, forward-facing position for use by the front seat occupants (see [reference]). Figure 12 In the third position, the flip-up armrest is in a horizontal, rearward position for use by rear seat occupants (see...). Figure 15 The locking key 12 contacts and presses against the third step.

[0071] The brake wheel assembly includes a brake wheel, a brake wheel pad, an end cap, and a brake wheel spring.

[0072] The brake wheels include a right brake wheel 17 and a left brake wheel 18, and are mounted on a support formed by an upper brake wheel cover and a lower brake wheel cover. A hinge shaft 12 passes through and is fixed to the right brake wheel 17 and the left brake wheel 18, so that the right brake wheel 17 and the left brake wheel 18 do not rotate when the handrail is tilted. The brake wheels support the handrail on the hinge shaft on one hand, and provide friction to the handrail when it is tilted through their engagement with the support.

[0073] The brake pads are mounted on the support and include a right brake pad 19 and a left brake pad 20. The right brake pad 19 and the left brake pad 20 are respectively mounted on the lower cover 15 and 16 of the brake wheel.

[0074] The brake wheel and brake wheel pad are made of friction material. Braking force is provided through the contact of the right brake wheel 17 and the left brake wheel 18, thereby allowing the armrest to be held in any position between the folded position and the rear seat use position.

[0075] The end caps include a right end cap 21 and a left end cap 22, which are mounted on the outside of the brake wheel on the support assembly to provide a seal.

[0076] The brake wheel spring 11 is positioned below the brake wheel pad to provide elastic force to the brake wheel pad, ensuring that friction is maintained even after the brake wheel and brake wheel pad wear out.

[0077] Figure 4 This is a schematic diagram of the use state of a flip-up armrest according to an exemplary embodiment of the present invention, wherein the flip-up armrest is in a state for use by the occupants of the front seats. Figure 5 This is a schematic diagram of the use state of a flip-up armrest according to an exemplary embodiment of the present invention, wherein the flip-up armrest is in a state for use by rear seat occupants.

[0078] Figure 18 and Figure 19 This is a schematic diagram illustrating the usage state of the console component in an exemplary embodiment of the present invention. Figure 18 The image shows a flip-up armrest in its normal use position for people in the front row, with a bracket extending from a concealed bracket device in the armrest to allow people to place items such as cups. Figure 19 The image shows a flip-up armrest in a position for use by rear passengers, which can rotate to the rear when second-row passengers need to place a cup or telephone; wherein a bracket in a concealed bracket device located in the armrest extends out.

[0079] Furthermore, a tray can be provided on the upper or lower side of the handrail assembly for passengers to place other items. Although this invention only... Figure 19 The image shows a tray on the lower side, but a tray can also be placed on the upper side of the armrest.

[0080] Figure 6 An exploded perspective view of a console assembly having a reversible armrest according to an exemplary embodiment of the present invention.

[0081] The console components include: a flip-up armrest A, a console B, a mounting cover C, and hinge mounting bolts D.

[0082] The control panel B includes an inwardly facing groove, in which the flip-up armrest A is positioned when folded and stored, as shown below. Figure 14 , Figure 16 As shown, this allows the console component to have a larger storage space.

[0083] The hinge mounting bolts D include a left hinge mounting bolt D-1 and a right hinge mounting bolt D-2, which can pass through holes in the side wall of console B and connect to a shaft at the rear of the flip-up armrest A to mount the hinge shaft to the side wall of console B. The mounting covers C include a seat mounting cover C-1 and a right mounting cover C-2 and are mounted on the outside of the side wall of console B to maintain the appearance of the console assembly.

[0084] See Figure 10 The hinge pin 12 is mounted on the left and right brake wheels 17 and 18, and both ends of the hinge pin 12 protrude from the brake wheels 17 and 18. When the flip-up armrest is mounted on console B (see...), Figure 6 The end of hinge shaft 12 can be inserted into a hole on the side wall of console B and mounted on the console by left and right hinge mounting bolts. When the flip-up armrest rotates, hinge shaft 12 remains stationary.

[0085] The reversible armrest of this invention can be folded, such as... Figure 3 As shown, the flip-up armrests fold back into the console assembly, thus providing more storage space.

[0086] Specifically, see Figure 16 The storage space of the control console assembly with a flip-up armrest of the present invention has a height N of 473mm and a width M of 270mm, and its cross-sectional area is 270mm × 473mm = 127710mm². 2 . Figure 17 This diagram illustrates the usable space within a console assembly in the prior art, where the storage box has a height B of 196 mm and a width A of 128 mm, with a cross-sectional area of ​​128 mm × 196 mm = 25088 mm². 2 Therefore, the cross-sectional area of ​​the storage space of the console component of the present invention is much larger than the size of the storage box in the prior art.

[0087] The console of the present invention has a flip-up armrest that can be rotated to a 180° position, thereby providing cup holders and trays for second-row passengers.

[0088] In summary, the rotating console makes it more convenient for rear passengers and provides more storage space for front passengers.

[0089] The operation of the flip-up handrail of the present invention will be described below with reference to the accompanying drawings.

[0090] When the operator presses button 1, pulling cable 5 backward, cable 5 in turn pulls the body of locking key 10 backward, thereby disengaging the body of locking key 10 from the step on the cam, allowing the handrail to rotate counterclockwise (see...). Figure 13 ).

[0091] The foldable armrest can be in three positions. In the first position, the foldable armrest is folded down and housed in a recess in the console at a -74° angle relative to the horizontal. In the second position, the foldable armrest is folded down at a 0° angle relative to the horizontal for use by front-seat occupants. In the third position, the foldable armrest is folded down at a 180° angle relative to the horizontal for use by rear-seat occupants.

[0092] The operation of the flip-up armrest can include three processes:

[0093] (1) From the second position to the first position (0°→-74°):

[0094] Pressing the button folds the armrest (0° → -74°). The button system unlocks the lock by moving the cable and releasing the engagement of the lock key with the cam step. The armrest can then rotate about the hinge axis. The first step of the cam limits the folding angle of the armrest; see [link to relevant documentation]. Figure 14 .

[0095] (2) From the first position through the second position to the third position (-74°→0°→180°):

[0096] That is, the armrest rotates from the folded position to a position available for rear passengers. This can be done without pressing a button; and the armrest can be rotated directly by overcoming friction generated by the brake wheel and brake wheel pad. The armrest can stop at any position, and the third step of the cam limits the rearward rotation angle (180°).

[0097] (3) From the third position to the second position (180°→0°):

[0098] That is, the armrest rotates from a position for rear passengers to a position for front passengers. This process can be achieved by directly rotating the armrest against friction, and it can be stopped at any position.

[0099] When the armrest moves to the second position (0°), the locking spring presses the locking key against the second step of the cam. Therefore, the armrest cannot be flipped downwards directly unless the button is pressed. The flip-up armrest of this invention uses the button only when folding the armrest downwards (0°→-74°).

[0100] The flip-up handrail and console assembly of the present invention have been described above with reference to the accompanying drawings and specific embodiments. However, the embodiments of this application only show the application of the flip-up handrail to a vehicle, but the present invention can also be applied to other occasions, such as trains, ships, airplanes, etc. Moreover, the present invention is not limited to being installed on the handrail of a mobile vehicle, but can also be installed in other locations.

[0101] For ease of interpretation and precise definition of the appended claims, the terms “upper,” “lower,” “inner,” “outer,” “above,” “below,” “above,” “below,” “upward,” “downward,” “front,” “back,” “behind,” “inner side,” “outer side,” “inward,” “outer,” “internal,” “external,” “inner,” “external,” “forward,” and “backward” are used to describe the features of the exemplary embodiments with reference to the positions of these features shown in the accompanying drawings.

[0102] The foregoing description of specific exemplary embodiments of the invention is for illustrative and descriptive purposes. It is not intended to be exhaustive, nor to limit the invention to the precise forms disclosed; clearly, many changes and variations are possible in accordance with the foregoing teachings. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to implement and utilize various exemplary embodiments of the invention, as well as their different alternatives and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flip-up handrail, the flip-up handrail comprising a housing, a button system, and a hinge system, the button system and the hinge system being installed within the housing; in, The hinge system includes a hinge axis, and the flip-up armrest is rotatable about the hinge axis and can be positioned in a first position, a second position, and a third position; in the first position, the flip-up armrest is in a downward folded position and is placed in a recess in the console. In the second position, the flip-up armrest is positioned horizontally forward. In the third position, the flip-up armrest is positioned horizontally backward; The hinge shaft includes a cam with three steps, each step including an arc portion and a step portion; wherein the step portion extends substantially radially, while the arc portion extends from the previous step to the next step.

2. The reversible armrest according to claim 1, wherein, The housing is formed by a flip-up armrest top cover and an armrest bottom cover, and the front of the housing is provided with an opening.

3. The reversible armrest according to claim 2, wherein, The button system includes a button and a cable, the button being located in the opening and the cable being pulled by pressing the button.

4. The reversible armrest according to claim 3, wherein, The button system also includes a button lever, a lever, and a button spring; The button lever has one end mounted on the rear of the button and the other end connected to a button spring, which applies a forward restoring force to the button lever. The button lever has a groove. A lever is rotatably mounted, with one end of the lever mounted in the groove of the button lever and the other end connected to the first end of a cable.

5. The reversible armrest according to claim 4, wherein, The button system also includes a button cover and a button plate, wherein the button, button lever, lever, and button spring are mounted on the button plate, and the button cover covers the button, button lever, lever, and button spring from above.

6. The reversible armrest according to claim 1, wherein, The step includes a first step, a second step, and a third step, wherein the first step includes a first arc portion located at the bottom of the cam and a first step; the second step includes a second step located at the top, and a second arc portion extending from the bottom of the first step to the top of the second step, the diameter of which increases as the arc gradually approaches the second step; the third step includes a third step located at the rear of the cam and a third arc portion extending between the bottom of the second step and the bottom of the third step, the diameter of which remains constant.

7. The reversible armrest according to claim 1, wherein, The hinge system also includes a hinge plate, a support assembly, a locking key assembly, and a brake wheel assembly; The support assembly, locking key assembly, and brake wheel assembly are mounted on the hinge plate, and the hinge shaft is mounted on the brake wheel assembly.

8. The reversible armrest according to claim 7, wherein, The support assembly includes a brake wheel upper cover and a brake wheel lower cover; The brake wheel cover has an opening on its forward-facing side.

9. The reversible armrest according to claim 7, wherein, The brake wheel assembly includes a brake wheel and a brake wheel pad; The hinge shaft passes through the brake wheel and is fixedly connected to the brake wheel; The brake wheel pad is installed on the support assembly and makes frictional contact with the brake wheel.

10. The reversible armrest according to claim 9, wherein, The brake wheel and brake wheel pad are made of friction material.

11. The reversible armrest according to claim 8, wherein, The key lock assembly includes a key lock, a key lock cover, and a key lock spring; The key cover is installed on the brake wheel cover; The locking key is installed on the locking key cover; one end of the locking key is connected to the cable, and the other end can engage with the step of the cam. The key spring applies a force toward the step to the key.

12. The reversible armrest according to claim 11, wherein, The locking key includes a body and a guide rod. The body is housed in a locking key cover and passes through an opening in the brake wheel cover to engage with a step of a cam. The guide rod extends from the locking key cover, and the locking key spring is mounted on the guide rod.

13. A console component comprising: The console includes an inwardly recessed groove; The reversible armrest according to any one of claims 1-12; as well as A connecting device for attaching the flip-up handrail to the control panel.

14. The console component of claim 13, wherein: The connection device includes a mounting hinge bolt through which the handrail assembly is mounted to the control panel.

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