Armrest assembly

Abstract

The utility model relates to an armrest assembly, which is rotatably arranged on a seat assembly through a rotating shaft, and comprises an armrest framework, a shaft sleeve which is fixed on the armrest framework and is used for coaxially inserting the rotating shaft, and a bolt piece which is used for fixing the rotating shaft and the shaft sleeve along the radial direction. A novel handrail framework installation mode is adopted, the installation strength is guaranteed, the shaking amount is small, assembly and disassembly are convenient, and the appearance of the handrail is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to an armrest assembly. Background Art

[0002] Regarding the installation of the car seat armrest frame, there are usually two installation methods:

[0003] See also Figure 1 As shown, the first type is installed through the armrest recliner, specifically, one end of the rotating shaft 1 is welded and fixed to the armrest frame 2, and the other end of the rotating shaft 1 is plugged into the armrest recliner 3, and the armrest recliner 3 is rotatably installed on the seat assembly around the rotating shaft 1. This structure allows the armrest to be adjusted in multiple gears, and has stronger functionality, but the strength of this structure is not enough, because the rotating shaft 1 is plugged into the armrest recliner 3 through the spline 4, and there is no constraint in the axial direction, so the shaking amount is large, and for the side with the airbag, the armrest will be knocked out when the airbag is detonated, so this structure is only applicable to the side without the airbag.

[0004] See also Figure 2 As shown, the second method is to install by bolting, specifically, one end of the rotating shaft 1 is fixed on the fixing bracket 3, the other end of the rotating shaft 1 is passed through the armrest frame 2, and then the other end of the rotating shaft 1 is fixedly connected to the step shaft 8 through the axially installed bolts 4, wave washers 5, ordinary washers 6 and reinforced sheet metal 7, and the bolts 4 are covered with a cover 9, otherwise the appearance will be affected. This structure is easy to disassemble and assemble, and the shaking amount is small, but the armrest can only achieve two-stage adjustment, and a cover is required, and the appearance of the armrest is not beautiful. Utility Model Content

[0005] In order to solve the above problems, the utility model provides an armrest assembly, which adopts a new armrest frame installation method to ensure installation strength, small shaking, easy installation and disassembly without affecting the appearance of the armrest.

[0006] The utility model is realized through the following scheme: an armrest assembly is rotatably mounted on a seat assembly through a rotating shaft, the armrest assembly comprises an armrest frame, a sleeve fixed on the armrest frame for coaxial insertion of the rotating shaft, and a latch member for radially fixing the rotating shaft and the sleeve.

[0007] A further improvement of the armrest assembly of the utility model is that an axial hole is axially opened on the sleeve for inserting the first end of the rotating shaft, a first connecting hole is radially opened on the sleeve, the first connecting hole is connected to the axial hole, a second connecting hole is opened on the first end of the rotating shaft, and the latch member passes through the first connecting hole and the second connecting hole to fix the rotating shaft and the sleeve.

[0008] A further improvement of the armrest assembly of the utility model is that the axial hole is divided into an upper half hole portion and a lower half hole portion along the insertion direction of the latch member, and the first end portion of the rotating shaft is divided into an upper half shaft portion and a lower half shaft portion along the insertion direction of the latch member, the cross-section of the upper half hole portion is adapted to the cross-section of the upper half shaft portion, and the height and width of the cross-section of the lower half hole portion are both greater than the height and width of the cross-section of the lower half shaft portion, so that when the rotating shaft and the sleeve are fixedly connected, the upper half shaft portion fits with the upper half hole portion and the lower half shaft portion at least partially does not fit with the lower half hole portion.

[0009] A further improvement of the armrest assembly of the utility model is that the combined cross-section of the upper half hole portion and the lower half hole portion, and the combined cross-section of the upper half shaft portion and the lower half shaft portion are both trapezoidal.

[0010] A further improvement of the armrest assembly of the utility model is that the cross section of the upper half hole portion is rectangular, the cross section of the lower half hole portion is trapezoidal, and the combined cross section of the upper half shaft portion and the lower half shaft portion is rectangular.

[0011] A further improvement of the handrail assembly of the utility model is that the latch member is a bolt, the first connecting hole is a through hole, and the second connecting hole is a threaded hole.

[0012] A further improvement of the armrest assembly of the utility model is that the armrest assembly further comprises an upper cover and a lower cover which are fixedly mounted to each other to accommodate the armrest frame, and a plug hole for the rotating shaft to pass through is provided on the upper cover.

[0013] A further improvement of the armrest assembly of the utility model is that the armrest assembly also includes an armrest angle adjuster arranged at the second end of the rotating shaft, the armrest angle adjuster is installed on the seat assembly, a spline is sleeved on the rotating shaft, and a spline groove adapted to the spline is provided on the armrest angle adjuster to fix the rotating shaft and the armrest angle adjuster.

[0014] A further improvement of the armrest assembly of the utility model is that the armrest frame includes a frame body and a reinforcing sheet metal relatively fixed to the frame body, and shaft sleeve holes are provided on the frame body and the reinforcing sheet metal. The shaft sleeve passes through the two shaft sleeve holes and is fixed between the frame body and the reinforcing sheet metal.

[0015] A further improvement of the armrest assembly of the utility model is that the frame body and the reinforced sheet metal are fixedly connected to form a channel for facilitating the installation of the latch member.

[0016] The utility model includes but is not limited to the following beneficial effects:

[0017] 1. The rotating shaft and the sleeve are fixed radially by the latch, which ensures the installation strength, small shaking, easy installation and removal, and does not affect the appearance of the handrail.

[0018] 2. By connecting the armrest angle adjuster to the second section of the shaft, the armrest can be adjusted in multiple angles.

[0019] 3. Through the cross-sectional matching design of the shaft hole and the shaft, the shaft hole provides sufficient installation clearance, and the shaft can be quickly inserted into the shaft hole without strict alignment. When fixed with the latch, the upper half of the shaft and the upper half of the shaft hole can be closely fitted, eliminating the installation clearance and ensuring the fixing strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the traditional armrest frame assembly installed through an armrest angle adjuster is shown.

[0021] Figure 2 A schematic diagram of the traditional handrail frame assembly installed by bolting is shown.

[0022] Figure 3 The utility model armrest assembly schematic diagram is shown.

[0023] Figure 4 The utility model armrest assembly overall structure schematic diagram is shown.

[0024] Figure 5 The utility model shows a schematic diagram of the rotating shaft structure.

[0025] Figure 6 A cross-sectional view of the spline and the spline groove of the armrest angle adjuster in the utility model is shown in the matching state.

[0026] Figure 7 The utility model shows a schematic diagram of the armrest frame assembly.

[0027] Figure 8 Shows Figure 7 Schematic diagram of the AA cross-sectional view.

[0028] Fig. 9 Shows Figure 7 Schematic diagram of BB cross-sectional view.

[0029] Fig.10 A schematic diagram of an embodiment of the cross-section cooperation between the rotating shaft and the shaft hole of the utility model is shown. DETAILED DESCRIPTION

[0030] In order to solve the problem that the traditional armrest frame cannot take into account both installation strength and installation convenience, the utility model provides an armrest assembly, which adopts a new armrest frame installation method, ensures installation strength, small shaking, easy installation and removal, and does not affect the appearance of the armrest. The armrest assembly is further described below with specific embodiments combined with the accompanying drawings.

[0031] See also Figure 3 , Figure 7 and Figure 8 As shown, an armrest assembly is rotatably mounted on a seat assembly via a rotating shaft 1, and the armrest assembly includes an armrest frame 2, a sleeve 4 fixed on the armrest frame 2 for coaxial insertion of the rotating shaft 1, and a latch member 5 for radially fixing the rotating shaft 1 and the sleeve 4.

[0032] Specifically: about the connection between the rotating shaft 1 and the sleeve 4. The sleeve 4 is provided with an axial hole 42 for inserting the first end 11 of the rotating shaft 1 in the axial direction, and the sleeve 4 is provided with a first connecting hole 41 in the radial direction, the first connecting hole 41 is communicated with the axial hole 42, and the first end 11 of the rotating shaft 1 is provided with a second connecting hole 111. When connecting, the first end 11 of the rotating shaft 1 is first inserted into the axial hole 42 of the sleeve 4, and the first connecting hole 41 and the second connecting hole 111 are aligned, and then the latch 5 is used to pass through the first connecting hole 41 and the second connecting hole 111 to coaxially fix the rotating shaft 1 and the sleeve 4. In this embodiment, the latch 5 is a bolt, the first connecting hole 41 is a through hole, and the second connecting hole 111 is a threaded hole. The latch 5 passes through the first connecting hole 41 and is screwed and connected to the second connecting hole 111.

[0033] Regarding the connection between the rotating shaft 1 and the seat assembly. Figure 5 and Figure 6 As shown, the armrest assembly also includes an armrest recliner 3 disposed at the second end of the rotating shaft 1, the armrest recliner is installed on the seat assembly, the second end 12 of the rotating shaft 1 is sleeved with a spline 13, and a spline groove 31 adapted to the spline 13 is provided at the riveted part of the armrest recliner 3 to fixedly connect the rotating shaft 1 with the armrest recliner 3. By adopting the form of spline and spline groove riveting, the rotating shaft 1 and the armrest recliner 3 form an assembly for multi-stage angle adjustment of the armrest assembly.

[0034] Regarding the connection between the shaft sleeve 4 and the armrest frame 2. Figure 3 and Figure 7 As shown, the armrest frame 2 includes a frame body 21 and a reinforcing sheet metal 22 relatively fixed to the frame body 21. The frame body 21 and the reinforcing sheet metal 22 are both provided with shaft sleeve holes 23. The shaft sleeve 4 passes through two shaft sleeve holes 23 and is fixed between the frame body 21 and the reinforcing sheet metal 22. Preferably, the shaft sleeve 4 is a stepped shaft, and the small-sized section is inserted and welded between the two shaft sleeve holes 23, and the large-sized section is blocked outside the shaft sleeve hole 23 on one side of the frame body 21. Furthermore, in order to facilitate the installation of the latch 5, the frame body 21 and the reinforcing sheet metal 22 are fixed to form a channel 24 for facilitating the installation of the latch 5. Among them, the frame body 21 and the reinforcing sheet metal 22 can be directly welded and fixed, or they can be an integral part formed by low-pressure injection molding.

[0035] The present embodiment adopts an armrest angle adjuster installation form, so that the armrest can achieve multi-level angle adjustment. Furthermore, a latch member is used to fix the rotating shaft and the shaft sleeve in the radial direction, which ensures the installation strength, reduces the shaking amount of the armrest and facilitates installation and disassembly. The latch member is installed in the channel to hide the latch member so that its installation does not affect the appearance of the armrest.

[0036] As a preferred embodiment, see Figure 3 and Figure 4 As shown, the armrest assembly further includes an upper cover 7 and a lower cover 6 which are fixed to each other to accommodate the armrest frame 2, and the lower cover 6 is provided with a plug hole 61 for the rotation shaft 1 to pass through. In this embodiment, the lower cover 6 is made of plastic material to ensure that it has a certain strength, and the upper cover 7 is made of soft bag material to improve the comfort of the user's hand.

[0037] This embodiment facilitates the installation of the latch member on the armrest frame by providing the upper and lower cover structures, and the entire armrest frame installation structure is hidden in the upper and lower covers, without the need for an external cover, thereby ensuring the aesthetics of the armrest assembly.

[0038] As a preferred embodiment, see Figure 7 to Figure 9 As shown, the shaft hole 42 is divided into an upper half hole portion 42a and a lower half hole portion 42b along the insertion direction of the latch member 5, that is, the upper half hole portion 42a and the lower half hole portion 42b are combined to form the shaft hole 42. The first end portion 11 of the rotating shaft 1 is divided into an upper half shaft portion 11a and a lower half shaft portion 11b along the insertion direction of the latch member 5, that is, the upper half shaft portion 11a and the lower half shaft portion 11 are combined to form the first end portion 11 of the rotating shaft 1. The cross section of the upper half hole portion 42a is adapted to the cross section of the upper half shaft portion 11a, and the height and width of the cross section of the lower half hole portion 42b are greater than the height and width of the cross section of the lower half shaft portion 11b, so that when the rotating shaft 1 and the sleeve 4 are fixedly connected, the upper half shaft portion 11a is in contact with the upper half hole portion 42a, while the lower half shaft portion 11b is at least partially not in contact with the lower half hole portion 42b. It should be noted that the upper hole portion 42a and the lower hole portion 42b are not strictly equal, but the shaft hole is divided into two parts, the upper hole portion 42a and the lower hole portion 42b can each account for 1 / 2 (e.g. Fig. 9 The dotted line shown is the dividing line), or the upper hole portion 42a may account for 3 / 4, and the lower hole portion 42b may account for 1 / 4, or other forms. The upper semi-axle portion 11a and the lower semi-axle portion 11b are similar. What needs to be satisfied is that the shape and size of the cross section of the upper semi-axle portion 42a and the upper semi-axle portion 11a are adapted, and the cross section of the lower semi-hole portion 42b should be larger than (i.e., able to cover) the cross section of the lower semi-axle portion 11b, and the shapes can be the same or different.

[0039] For example, the combined cross-section of the upper half hole portion 42a and the lower half hole portion 42b, and the combined cross-section of the upper half shaft portion 11a and the lower half shaft portion 11b are both trapezoidal. Figure 7 and Fig. 9 It can be seen in the figure that because the trapezoidal lower part can provide sufficient clearance and can drive the handrail assembly to rotate, there is a mounting clearance 421 when the first end 11 of the rotating shaft 1 is installed in the shaft hole 42. After being set to a trapezoidal cross section, when it is fixed by the latch 5, the upper surface and both side surfaces of the first end 11 can be in close contact with the upper inner wall and both side inner walls of the shaft hole 42, so that the mounting clearance 421 is concentrated in the lower part (i.e., the side facing away from the latch 5).

[0040] For example, see Fig.10 As shown, the cross section of the upper hole portion 42a is set to be rectangular, the cross section of the lower hole portion 42b is set to be trapezoidal, and the combined cross section of the upper half shaft portion 11a and the lower half shaft portion 11b is rectangular. When inserting the first end portion 11, it is only necessary to insert it as close to the side of the lower half hole portion 42b as possible, and after being fixed by the latch 5, the first end portion 11 will move to the side of the upper half hole portion 42a until the upper half shaft portion 11a and the upper half hole portion 42a are tightly fitted, and the lower half hole portion 42b releases the installation gap 421.

[0041] By matching the shaft hole with the shaft cross section, the shaft hole provides sufficient installation clearance, and the shaft can be quickly inserted into the shaft hole without strict alignment. When the latch is used for fixing, the upper half of the shaft and the upper half of the shaft hole can be closely fitted, eliminating the installation clearance and ensuring the fixing strength.

[0042] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. An armrest assembly, rotatably mounted on a seat assembly via a rotating shaft, characterized in that: The armrest assembly comprises an armrest frame, a sleeve fixed on the armrest frame for coaxial insertion of the rotating shaft, and a latch member for radially fixing the rotating shaft and the sleeve.

2. The armrest assembly according to claim 1, characterized in that: The shaft sleeve is provided with an axial hole in the axial direction for inserting the first end of the rotating shaft, the shaft sleeve is provided with a first connecting hole in the radial direction, the first connecting hole is communicated with the axial hole, the first end of the rotating shaft is provided with a second connecting hole, the latch member passes through the first connecting hole and the second connecting hole to fix the rotating shaft and the shaft sleeve.

3. The armrest assembly according to claim 2, characterized in that: The axial hole is divided into an upper half hole portion and a lower half hole portion along the insertion direction of the latch member, and the first end portion of the rotating shaft is divided into an upper half shaft portion and a lower half shaft portion along the insertion direction of the latch member. The cross section of the upper half hole portion is adapted to the cross section of the upper half shaft portion, and the height and width of the cross section of the lower half hole portion are both greater than the height and width of the cross section of the lower half shaft portion, so that when the rotating shaft and the sleeve are fixedly connected, the upper half shaft portion fits with the upper half hole portion, while the lower half shaft portion and the lower half hole portion are at least partially not fitted.

4. The armrest assembly according to claim 3, characterized in that: The combined cross-section of the upper half hole portion and the lower half hole portion, and the combined cross-section of the upper half shaft portion and the lower half shaft portion are both trapezoidal.

5. The armrest assembly according to claim 3, characterized in that: The cross section of the upper half hole portion is rectangular, the cross section of the lower half hole portion is trapezoidal, and the combined cross section of the upper half shaft portion and the lower half shaft portion is rectangular.

6. The armrest assembly according to claim 2, characterized in that: The latch member is a bolt, the first connecting hole is a through hole, and the second connecting hole is a threaded hole.

7. The armrest assembly according to claim 1, characterized in that: The armrest assembly also includes an upper cover and a lower cover which are fixed to each other to accommodate the armrest frame, and the lower cover is provided with an insertion hole for the rotating shaft to pass through.

8. The armrest assembly according to claim 1, characterized in that: The armrest assembly also includes an armrest angle adjuster arranged at the second end of the rotating shaft, the armrest angle adjuster is installed on the seat assembly, a spline is sleeved on the rotating shaft, and a spline groove adapted to the spline is provided on the armrest angle adjuster to fix the rotating shaft and the armrest angle adjuster.

9. The armrest assembly according to claim 1, characterized in that: The armrest frame includes a frame body and a reinforcing sheet metal relatively fixed to the frame body. Both the frame body and the reinforcing sheet metal are provided with shaft sleeve holes. The shaft sleeve passes through the two shaft sleeve holes and is fixed between the frame body and the reinforcing sheet metal.

10. The armrest assembly according to claim 9, characterized in that: The frame body and the reinforced sheet metal are fixedly connected to form a channel for facilitating the installation of the latch member.

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