Variable armrest

Abstract

The utility model discloses a variable handrail, including supporting assembly and support subassembly, and support subassembly plays the main body support function, and supporting assembly supports the arm, supporting assembly contains lower supporting part and upper supporting part, and there is motion subassembly between the two, and upper supporting part and lower supporting part are along the width direction sliding fit, and are along the height direction sliding fit with motion subassembly, variable handrail has two states of initial and deformation, and upper supporting part is above lower supporting part when initial, and upper supporting part first slides away from the above of lower supporting part along the width direction when deformation, then slides down to the side of lower supporting part and is side by side and clings to, support subassembly is connected seat, and variable handrail deformation relies on supporting assembly, and realizes the conversion of handrail and small table board through the translation sliding of upper supporting part, this variable handrail is while reserving the appearance and function of conventional handrail, and forms small table board through deformation, does not need the additional space to accommodate and hides, and maintains the portable simplicity of office chair handrail.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to a variable armrest. Background Technology

[0002] In modern life, the multi-functionality of chairs is becoming increasingly prominent. Taking the armrests of office chairs as an example, the position of existing chair armrests can generally be adjusted to meet people's usage needs. However, the most important function of existing armrests is to support the human arm. On this basis, and considering cost factors, the armrest surface is uniformly long and thin. This shape of armrest can effectively achieve the function of supporting the human arm at a lower cost, so manufacturers have always adhered to this design.

[0003] In some situations, such as small meetings in an office that are not held at a conference table, people who want to take notes have to raise their arms and write on their notebooks with their hands suspended in the air. Although there are armrests to support their arms, it is not convenient to write and is not as comfortable as placing the notebook on the table. Moreover, maintaining this posture for a long time can be very tiring.

[0004] Take sofa armrests as another example. Sofa armrests are generally larger and usually consist of block-shaped boxes, with a long and narrow surface. However, some sofas have hidden flip-out trays within the armrests. Users can open the armrest, rotate the tray upwards, and then rotate it horizontally. They can then place their belongings on the tray, as seen in some movie theater sofas. Of course, some trays are designed to fold to accommodate different storage spaces.

[0005] Office chairs, due to their portability and simplicity, do not have enough space in their armrests to accommodate a small table, thus they cannot be used to place items. Summary of the Invention

[0006] To address the aforementioned technical problems, this utility model provides a variable armrest, comprising a support component and a backing component. The backing component provides the main support, while the support component supports the arm. The support component includes a lower support member and an upper support member, with a moving component between them. The upper support member slides along the width direction with the lower support member and slides along the height direction with the moving component. The variable armrest has two states: an initial state and a deformed state. Initially, the upper support member is above the lower support member. During deformation, the upper support member first slides away from the lower support member along the width direction and then slides down to its side, side by side. The backing component connects to the seat, and the deformation of the variable armrest relies on the support component. The transformation of the armrest into a small table is achieved by the translational sliding of the upper support member. This variable armrest retains the shape and function of a conventional armrest while deforming into a small table, requiring no additional space for concealment and maintaining the portability and simplicity of an office chair armrest.

[0007] The technical solution of this utility model is implemented as follows:

[0008] A variable handrail includes a support component and a backing component. The backing component is configured as a main support, and the support component is disposed on the backing component and configured to support a human arm. The support component includes a lower support member connected to the backing component and an upper support member disposed above the lower support member. A motion component is provided between the upper and lower support members. The upper support member slides with the lower support member along the width direction via the motion component, and the upper support member slides with the motion component along the height direction. The variable handrail has an initial state and a deformed state. In the initial state, the upper support member is located above the lower support member. When switching from the initial state to the deformed state, the upper support member slides along the width direction away from the lower support member and slides down to the side of the lower support member, with the upper and lower support members side by side.

[0009] The support assembly is used to connect the seat. The deformation of the variable armrest is accomplished by the support assembly. The transformation between the armrest and the small table is achieved by the translational sliding of the upper support member. In the initial state, the upper support member and the lower support member are stacked and abutted together. At this time, the support assembly is equivalent to an armrest board or armrest pad for supporting the human arm, on which the user can place his arm. The motion assembly between the upper support member and the lower support member allows the upper support member to slide both horizontally and vertically. Therefore, when switching from the initial state to the deformed state, the upper support member first moves away from the lower support member and slides to the side, and then slides down to the same height as the lower support member. At this time, the upper support member is located next to the lower support member, and the two are side by side and abutted together to form a larger small table for placing items.

[0010] This variable armrest maintains the shape and function of a conventional armrest while transforming into a small table. Because it is achieved through deformation, there is no need to accommodate or hide the small table, thus maintaining the portability and simplicity of the office chair armrest.

[0011] Preferably, the upper support has a first upward-facing support surface, which initially supports a person's arm; the lower support has a second upward-facing support surface, which initially covers the first support surface, and in a deformed state, the first and second support surfaces are flush. The first and second support surfaces together constitute the surface of the small table for supporting items.

[0012] Preferably, the motion component is slidably disposed in the lower support in the left-right direction. The lower support also has a notch, through which the motion component is exposed and connected to the upper support from bottom to top.

[0013] Preferably, the lower support member is provided with a first groove extending in the left-right direction, and the notch communicates with the first groove.

[0014] Preferably, the motion component includes two parallel sliding members. Each sliding member includes a sliding portion and a connecting portion. The sliding portion is slidably disposed in the lower support member, and the connecting portion extends upward from the end of the sliding portion and connects to the upper support member. The sliding portion and the connecting portion of the sliding member are integrally formed. The sliding portion is a rod, and the end of the sliding portion is bent upward and extended to form the connecting portion.

[0015] Preferably, the lower surface of the upper support member is provided with a second sliding groove, which extends in the vertical direction. The connecting part slides and engages with the upper support member through the second sliding groove. The shape of the second sliding groove corresponds to the shape of the connecting part, so that the connecting part can smoothly enter the depth of the second sliding groove, allowing the upper support member to sink and slide on the sliding member.

[0016] Preferably, the lower surface of the upper support member is further provided with a third sliding groove extending in the left-right direction. The third sliding groove communicates with the second sliding groove. In the initial state, the connecting part is disposed in the second sliding groove, and the connecting part slides left and right with the upper support member through the second sliding groove. The sliding distance between the sliding member and the lower support member is not long enough to allow the upper support member to completely separate from the lower support member. Therefore, a third sliding groove is also needed between the upper support member and the sliding member to increase the left-right sliding distance.

[0017] Preferably, the lower surface of the upper support member is also provided with a relief groove, which is used to avoid the sliding part in the deformed state.

[0018] Preferably, the connecting part is a telescopic rod. The connecting part is preferably a telescopic rod because it needs to extend upwards beyond the second support surface to connect with the upper support member. In the deformed state, the first and second support surfaces need to be flush. If the length of the connecting part is fixed, it will inevitably extend beyond the first support surface, disrupting the flatness of the tabletop surface or preventing the first and second support surfaces from being flush. Therefore, the connecting part is a telescopic rod. In the initial state, it is in an extended state, at which point the length of the connecting part is sufficient to connect with the upper support member. In the deformed state, it is in a shortened state, and the length of the connecting part is shortened to not extend beyond the second support surface.

[0019] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0020] The support assembly is used to connect the seat. The deformation of the variable armrest is accomplished by the support assembly. The transformation between the armrest and the small table is achieved by the translational sliding of the upper support member. In the initial state, the upper support member and the lower support member are stacked and abutted together. At this time, the support assembly is equivalent to an armrest board or armrest pad for supporting the human arm, on which the user can place his arm. The motion assembly between the upper support member and the lower support member allows the upper support member to slide both horizontally and vertically. Therefore, when switching from the initial state to the deformed state, the upper support member first moves away from the lower support member and slides to the side, and then slides down to the same height as the lower support member. At this time, the upper support member is located next to the lower support member, and the two are side by side and abutted together to form a larger small table for placing items.

[0021] This variable armrest maintains the shape and function of a conventional armrest while transforming into a small table. Because it is achieved through deformation, there is no need to accommodate or hide the small table, thus maintaining the portability and simplicity of the office chair armrest. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the variable handrail in the initial state of the embodiment of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the variable handrail in the initial state of the embodiment of the present invention. Figure 2 ;

[0024] Figure 3 This is a three-dimensional structural diagram of the slider after it slides in the first groove in an embodiment of the present invention;

[0025] Figure 4 This is a front view of the slider after it has slid in the first groove in an embodiment of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the present invention in an embodiment, showing the upper support completely separated from the upper support above the lower support.

[0027] Figure 6 This is a front view of the present invention in an embodiment where the upper support is completely separated from the lower support.

[0028] Figure 7 This is a three-dimensional structural diagram of the variable handrail in the deformed state of the present invention in an embodiment;

[0029] Figure 8 This is a front view of the variable handrail in a deformed state according to an embodiment of the present invention;

[0030] Figure 9This is a bottom view of the upper support member in an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram showing the switching from the initial state to the deformed state in an embodiment of the present invention.

[0032] The reference numerals in the attached drawings are as follows: support component 1; lower support component 11; second support surface 111; upper support component 12; first support surface 121; sliding component 2; sliding part 21; connecting part 22; support component 3; notch 4; first slide groove 5; second slide groove 6; third slide groove 7; clearance groove 8. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0035] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] The specific implementation of this utility model is as follows:

[0037] like Figure 1-8 As shown in Figure 10, this utility model provides a variable handrail, including a support component 1 and a support component 3. The support component 3 is configured as the main support, and the support component 1 is disposed on the support component 3 and configured to support the human arm. The support component 1 includes a lower support member 11 connected to the support component 3 and an upper support member 12 disposed above the lower support member 11. A motion component is provided between the upper support member 12 and the lower support member 11. The upper support member 12 slides with the lower support member 11 in the width direction through the motion component, and the upper support member 12 slides with the motion component in the height direction. The variable handrail has an initial state and a deformed state. In the initial state, the upper support member 12 is located above the lower support member 11. When switching from the initial state to the deformed state, the upper support member 12 slides in the width direction away from the lower support member 11 and slides down to the side of the lower support member 11, with the upper support member 12 and the lower support member 11 side by side.

[0038] The support component 3 is used to connect the seat. The deformation of the variable armrest is accomplished by the support component 1. The transformation between the armrest and the small table is achieved by the translational sliding of the upper support component 12. In the initial state, the upper support component 12 and the lower support component 11 are stacked and close together. At this time, the support component 1 is equivalent to an armrest board or armrest pad for supporting the human arm, and the user can place his arm on it. The moving component between the upper support component 12 and the lower support component 11 allows the upper support component 12 to slide in both the left and right directions and in the height direction. Therefore, when switching from the initial state to the deformed state, the upper support component 12 first moves away from the lower support component 11 and slides to the side, and then slides down to the same height as the lower support component 11. At this time, the upper support component 12 is located next to the lower support component 11, and the two are side by side and close together to form a larger small table for placing items.

[0039] This variable armrest maintains the shape and function of a conventional armrest while transforming into a small table. Because it is achieved through deformation, there is no need to accommodate or hide the small table, thus maintaining the portability and simplicity of the office chair armrest.

[0040] Specifically, the support component 1 is movably mounted on the support component 3, which is used to connect with the seat. The support component 3 itself can extend and retract to raise and lower the support component 1. The support component 1 can move in multiple directions on the support component 3. The relevant structure will not be described in detail here. The multi-directional movement not only allows the support component 1 to adapt to different arm positions, but also allows the small table formed to be moved to different positions of the human body, which is convenient for use in different situations, such as the small table being located in front of or to the side of the human body.

[0041] To be more specific, such as Figure 2-6 As shown, the upper support member 12 has a first support surface 121 facing upward. In the initial state, the first support surface 121 is used to support the human arm. The lower support member 11 has a second support surface 111 facing upward. In the initial state, the upper support member 12 covers the first support surface 121. In the deformed state, the first support surface 121 and the second support surface 111 are flush. The first support surface 121 and the second support surface 111 together form a small table for supporting items.

[0042] The motion component is slidably disposed in the lower support 11 in the left-right direction. The lower support 11 also has a notch 4. The motion component is exposed from the notch 4 and connected to the upper support 12 from bottom to top. The lower support 11 has a first sliding groove 5 extending in the left-right direction. The notch 4 communicates with the first sliding groove 5. The motion component includes two parallel sliding members 2. The sliding member 2 includes a sliding part 21 and a connecting part 22. The sliding part 21 is slidably disposed in the lower support 11. The connecting part 22 extends upward from the end of the sliding part 21 and connects to the upper support 12. The connecting part 22 leaves the lower support 11 from the notch 4 and connects to the upper support 12. The sliding part 21 and the connecting part 22 of the sliding member 2 are integrally formed. The sliding part 21 is a rod. The end of the sliding part 21 is bent upward and extended to form the connecting part 22.

[0043] To achieve the kinematic cooperation between the upper support 12 and the sliding member 2, a groove is also cut on the lower surface of the upper support 12. Specifically, such as... Figure 4 , 6 As shown in Figures 8 and 9, the lower surface of the upper support member 12 is provided with a second sliding groove 6, which extends in the vertical direction. The connecting part 22 slides and engages with the upper support member 12 vertically through the second sliding groove 6. The shape of the second sliding groove 6 corresponds to the shape of the connecting part 22, so that the connecting part 22 can smoothly enter the depth of the second sliding groove 6, allowing the upper support member 12 to sink and sink on the sliding member 2. The lower surface of the upper support member 12 is also provided with a third sliding groove 7 extending in the horizontal direction, which communicates with the second sliding groove 6. In the initial state, the connecting part 22 is set in the second sliding groove 6, and the connecting part 22 slides and engages with the upper support member 12 horizontally through the second sliding groove 6. The sliding distance between the sliding member 2 and the lower support member 11 is not long enough to allow the upper support member 12 to completely leave the lower support member 11. Therefore, the third sliding groove 7 is also needed between the upper support member 12 and the sliding member 2 to increase the horizontal sliding distance. The lower surface of the upper support member 12 is also provided with a relief groove 8, which is used to avoid the sliding part 21 in the deformed state.

[0044] Furthermore, the connecting part 22 is preferably a telescopic rod. Since the connecting part 22 needs to extend upward beyond the second support surface 111 to connect with the upper support member 12, and the first support surface 121 and the second support surface 111 need to be flush in the deformed state, if the length of the connecting part 22 is fixed, it will inevitably extend beyond the first support surface 121, thus damaging the flatness of the tabletop surface or failing to achieve the effect of the first and second support surfaces being flush. Therefore, the connecting part 22 is a telescopic rod. In the initial state, it is in an extended state, at which time the length of the connecting part 22 is sufficient to connect with the upper support member 12. In the deformed state, it is in a shortened state, and the length of the connecting part 22 is shortened to not extend beyond the second support surface 111.

Claims

1. A variable handrail, characterized in that: The handrail includes a support component and a supporting component. The supporting component is configured as the main support, and the support component is mounted on the supporting component and configured to support a human arm. The supporting component includes a lower support member connected to the supporting component and an upper support member positioned above the lower support member. A moving component is provided between the upper and lower support members. The upper support member slides with the lower support member along the width direction via the moving component, and the upper support member slides with the moving component along the height direction. The variable handrail has an initial state and a deformed state. In the initial state, the upper support member is positioned above the lower support member. When switching from the initial state to the deformed state, the upper support slides along the width direction to move away from the lower support and slides down to the side of the lower support, with the upper support and the lower support side by side.

2. The variable handrail according to claim 1, characterized in that: The upper support has a first support surface facing upwards. In the initial state, the first support surface is used to support the human arm. The lower support has a second support surface facing upward. In the initial state, the upper support covers the first support surface. In the deformed state, the first support surface is flush with the second support surface.

3. The variable handrail according to claim 1, characterized in that: The motion component is slidably disposed in the lower support in the left-right direction. The lower support also has a notch, through which the motion component is exposed and connected to the upper support from bottom to top.

4. The variable handrail according to claim 3, characterized in that: The lower support member is provided with a first sliding groove extending in the left and right direction, and the notch is connected to the first sliding groove.

5. The variable handrail according to claim 3, characterized in that: The motion component includes two parallel sliding members. Each sliding member includes a sliding part and a connecting part. The sliding part is slidably disposed in the lower support member, and the connecting part extends upward from the end of the sliding part and connects to the upper support member.

6. The variable handrail according to claim 5, characterized in that: The lower surface of the upper support is provided with a second sliding groove, which extends in the vertical direction. The connecting part slides and engages with the upper support through the second sliding groove.

7. The variable handrail according to claim 6, characterized in that: The lower surface of the upper support member is also provided with a third sliding groove extending in the left and right direction. The third sliding groove is connected to the second sliding groove. In the initial state, the connecting part is set in the second sliding groove, and the connecting part slides and engages with the upper support member in the left and right directions through the second sliding groove.

8. The variable handrail according to claim 7, characterized in that: The lower surface of the upper support is also provided with a clearance groove, which is used to avoid the sliding part in the deformed state.

9. The variable handrail according to claim 5, characterized in that: The connecting part is a telescopic rod.

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