Side armrest angle adjustment mechanism and seat side armrest with adjustable angle

Abstract

The invention belongs to the field of automobile seats and relates to a side armrest angle adjustment mechanism and an angle-adjustable seat side armrest, wherein the side armrest angle adjustment mechanism comprises a fixed end shaft, a fixed rotating sleeve, an intermediate fixed disk, a retaining plastic frame, a left limit disk, a right limit disk, a card, and a spring leaf; the fixed end shaft is fixedly connected to the fixed rotating sleeve, the intermediate fixed disk is mounted on the fixed rotating sleeve and rotates coaxially with the fixed rotating sleeve, the intermediate fixed disk is mounted with a card and a spring leaf, and the entirety is mounted in a radial limit groove of the retaining plastic frame, and a left limit disk and a right limit disk are arranged on both sides of the retaining plastic frame; the left limit disk and the right limit disk are machined with angle adjustment grooves that cooperate with the card to realize angle adjustment; the angle adjustment grooves are provided with limit teeth, unlocking thrust stop points, and locking thrust stop points that cooperate with the card; the mechanism can realize multi-gear adjustment with high angle adjustment precision, and the side armrest can be rotated by one hand during gear adjustment, and the operation process is simple and convenient.

Description

Technical Field

[0001] The invention belongs to the field of automobile seats, and relates to a side armrest of an automobile seat, and in particular to a side armrest angle adjustment mechanism and an angle-adjustable seat side armrest. Background Art

[0002] The side armrests of existing car seats usually do not have an angle adjustment function or have low angle adjustment accuracy, which cannot meet the comfort needs of different passengers. Chinese patent CN 104085329 A discloses "a movable armrest for car seats". The thorns and spines on the movable armrest can facilitate passengers to adjust the angle of the armrest and fix it. The push button set at the end of the armrest can facilitate passengers to adjust the angle, thereby meeting the comfort needs of different passengers. However, the movable armrest has a complex structure, occupies a large space, and needs to operate the push button and the movable armrest at the same time when adjusting the gear position, which is inconvenient to operate. Summary of the invention

[0003] In view of the above-mentioned technical problems and defects, the object of the present invention is to provide a side armrest angle adjustment mechanism, which has a simple overall structure, low cost, and occupies a small space. When adjusting the gear position, the side armrest can be rotated with one hand, and the operation process is simple and convenient.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A side armrest angle adjustment mechanism comprises a fixed end shaft, a fixed rotating sleeve, an intermediate fixed disk, a retaining plastic frame, a left limit disk, a right limit disk, a card, and a spring; wherein the fixed end shaft is fixedly connected to the fixed rotating sleeve;

[0006] The intermediate fixed disk is installed on the fixed rotating sleeve and rotates coaxially with the fixed rotating sleeve; the intermediate fixed disk is processed with a card installation slot and a spring installation slot; the card installation slot and the spring installation slot are in a connected state; the card is arranged in the card installation slot; the spring is arranged in the spring installation slot, and one end of the spring contacts the card and presses the card tightly; the card installation slot includes a locking slot and an unlocking slot connected with the locking slot, and the card is located in the locking slot or the unlocking slot;

[0007] The plastic retaining frame is processed with a radial limit groove matching the middle fixed disk, the middle fixed disk is installed in the radial limit groove of the plastic retaining frame and rotates relative to the plastic retaining frame; the left limit disk and the right limit disk are arranged on both sides of the plastic retaining frame;

[0008] The left limit plate and the right limit plate are fixedly connected to the holding plastic frame through the fixed rotating shaft sleeve, which are used to limit the axial movement of the middle fixed plate; the left limit plate and the right limit plate are symmetrical structures, and an angle adjustment groove is processed on them to cooperate with the card to realize angle adjustment; a limiting tooth cooperating with the card is provided on the outer wall of the angle adjustment groove, and when the card is located in the locking groove, the limiting tooth is used to limit the card so that it can only rotate in the clockwise direction, and when the card is located in the unlocking groove, it does not contact the limiting tooth; the angle adjustment groove is provided with an unlocking thrust stop point at one end away from the limiting tooth, and when the middle fixed plate rotates clockwise, the card in the locking groove returns to the unlocking groove under the action of the unlocking thrust stop point; the angle adjustment groove is provided with a locking thrust stop point at a position close to the starting end of the limiting tooth, and when the middle fixed plate rotates counterclockwise, the card in the unlocking groove returns to the locking groove under the action of the locking thrust stop point.

[0009] As a preferred embodiment of the present invention, the angle adjustment mechanism further comprises a left cover and a right cover, and the left cover and the right cover are respectively arranged on the outside of the left limit plate and the right limit plate, and are fixedly connected to the left limit plate and the right limit plate.

[0010] As a preferred embodiment of the present invention, a hexagonal assembly groove is processed at the axial position of the intermediate fixed disk, and a hexagonal assembly portion matching the hexagonal assembly groove is provided on the circumference of the fixed rotating sleeve. The intermediate fixed disk is installed at the hexagonal assembly portion of the fixed rotating sleeve, and the end is fixed by a nut.

[0011] As a preferred embodiment of the present invention, a damping installation groove is processed on the middle fixed plate, a damping groove is arranged in the damping installation groove, the damping groove is a plastic part, a damping rivet is arranged in the damping groove, and both ends of the damping rivet are respectively fixed on the left limit plate and the right limit plate.

[0012] As a preferred embodiment of the present invention, the fixed end shaft is connected to the fixed rotating shaft via a spline, and an omega spring is provided at the end of the fixed end shaft.

[0013] As a preferred embodiment of the present invention, the card is a rectangular block, the locking groove is a rectangular groove matching the card, the unlocking groove is located on the inner side of the locking groove, and the unlocking groove crosses and overlaps with one end of the locking groove close to the fixed rotating sleeve.

[0014] As a preferred embodiment of the present invention, the surface of the unlocking thrust stop point in contact with the card is an arc surface, and the card does not contact the unlocking thrust stop point when located in the unlocking slot.

[0015] As a further preferred embodiment of the present invention, the left cover, the left limiting plate, the retaining plastic frame, the right limiting plate and the right cover are connected as a whole by two rivets and are fixed to the seat back frame by bolts.

[0016] The present invention also provides a seat side armrest with adjustable angle, which comprises an armrest body and the above-mentioned side armrest angle adjustment mechanism, wherein the armrest body is fixed on the fixed end shaft of the side armrest angle adjustment mechanism, and the seat side armrest angle can be adjusted by adjusting the armrest body to drive the fixed end shaft to rotate.

[0017] As a preferred embodiment of the present invention, the side armrest angle adjustment mechanism is installed on the seat back frame.

[0018] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows: the angle adjustment mechanism provided by the present invention can realize multi-gear adjustment, the angle adjustment accuracy is high, and the gear adjustment can be performed by rotating the side armrest with one hand, and the operation process is simple and convenient; in addition, the mechanism also has the advantages of simple overall structure, low cost, and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easy to understand. In the accompanying drawings:

[0020] Figure 1 The overall structure of the side armrest angle adjustment mechanism provided by the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of the side armrest angle adjustment mechanism provided by the present invention is shown in FIG. Figure 2 ;

[0022] Figure 3 It is a front view of the side armrest angle adjustment mechanism provided by the present invention;

[0023] Figure 4 yes Figure 3 Sectional view along AA;

[0024] Figure 5 It is an exploded schematic diagram of the side armrest angle adjustment mechanism provided by the present invention;

[0025] Figure 6 It is a schematic diagram of the installation of the damping groove of the present invention;

[0026] Figure 7 It is a schematic diagram of the adjustment process of the side armrest angle adjustment mechanism provided by the present invention.

[0027] The accompanying drawings include: fixed end shaft 1, fixed rotating sleeve 2, middle fixed disk 3, retaining plastic frame 4, left limit disk 5, right limit disk 6, card 7, spring 8, left cover 9, right cover 10, round nut 11, damping groove 12, damping rivet 13, omega spring 14, rivet 15, hexagonal assembly part 21, card mounting groove 31, spring mounting groove 32, hexagonal assembly groove 33, damping mounting groove 34, radial limit groove 41, angle adjustment groove 61, locking groove 311, unlocking groove 312, limit tooth 611, unlocking thrust stop point 612, locking thrust stop point 613. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. It should be pointed out that all the drawings are exemplary representations. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The present invention is further described in detail below through specific implementation examples and in conjunction with the drawings.

[0031] like Figures 1 to 7 As shown, a side armrest angle adjustment mechanism provided in this embodiment includes a fixed end shaft 1, a fixed rotating sleeve 2, an intermediate fixed disk 3, a retaining plastic frame 4, a left limit disk 5, a right limit disk 6, a card 7, and a spring 8; wherein the fixed end shaft 1 is fixedly connected to the fixed rotating sleeve 2;

[0032] The intermediate fixed disk 3 is mounted on the fixed rotating sleeve 2 and rotates coaxially with the fixed rotating sleeve 2; a card mounting groove 31 and a spring mounting groove 32 are processed on the intermediate fixed disk 3; the card mounting groove 31 and the spring mounting groove 32 are in a connected state; the card 7 is arranged in the card mounting groove 31; the spring 8 is arranged in the spring mounting groove 32, and one end of the spring 8 contacts and presses against the card 7; the card mounting groove 31 includes a locking groove 311 and an unlocking groove 312 connected with the locking groove 311, and the card 7 is located in the locking groove 311 or the unlocking groove 312;

[0033] The plastic holder 4 is processed with a radial limit groove 41 matching the intermediate fixing plate 3. The intermediate fixing plate 3 is installed in the radial limit groove 41 of the plastic holder 4 and rotates relative to the plastic holder 4. The left limit plate 5 and the right limit plate 6 are provided on both sides of the plastic holder 4.

[0034] The left limit plate 5 and the right limit plate 6 are fixedly connected to the plastic frame 4 through the fixed rotating sleeve 2, and are used to limit the axial movement of the middle fixed plate 3; the left limit plate 5 and the right limit plate 6 are symmetrical structures, and an angle adjustment groove 61 is processed thereon to cooperate with the card 7 to achieve angle adjustment; the outer side wall of the angle adjustment groove 61 is provided with a limit tooth 611 that cooperates with the card 7, and when the card 7 is located in the locking groove 311, the limit tooth 611 is used to limit the card 7 so that it can only rotate in the clockwise direction, and when the card 7 is located in the unlocking groove 312, it cooperates with the limit tooth 611 to achieve angle adjustment. The teeth 611 do not contact; the angle adjustment groove 61 is provided with an unlocking thrust stop point 612 at the end away from the limiting tooth 611. When the intermediate fixed disk 3 rotates clockwise, the card 7 located in the locking groove 311 returns to the unlocking groove 312 under the action of the unlocking thrust stop point 612; the angle adjustment groove 61 is provided with a locking thrust stop point 613 at a position close to the starting end of the limiting tooth 611. When the intermediate fixed disk 3 rotates counterclockwise, the card 7 located in the unlocking groove 312 returns to the locking groove 311 under the action of the locking thrust stop point 613.

[0035] Further, if Figures 1 to 7 As shown, in this embodiment, the angle adjustment mechanism further includes a left cover 9 and a right cover 10, and the left cover 9 and the right cover 10 are respectively arranged on the outside of the left limit plate 5 and the right limit plate 6, and are fixedly connected to the left limit plate 5 and the right limit plate 6;

[0036] The middle fixed disk 3 is processed with a hexagonal assembly groove 33 at the axial center position, and the circumference of the fixed rotating sleeve 2 is provided with a hexagonal assembly portion 21 matching the hexagonal assembly groove 33. The middle fixed disk 3 is installed at the hexagonal assembly portion 21 of the fixed rotating sleeve 2, and the end is locked and fixed by a round nut 11;

[0037] The fixed end shaft 1 is connected to the fixed rotating sleeve 2 via a spline, and an omega spring 14 is provided at the end of the fixed end shaft 1; the omega spring 14 is used to axially limit the fixed end shaft 1 to prevent the fixed end shaft 1 from moving axially.

[0038] Further, if Figures 5 to 7 As shown, in this embodiment, a damping installation groove 34 is processed on the middle fixed plate 3, and a damping groove 12 is arranged in the damping installation groove 34. The damping groove 12 is a plastic part, and a damping rivet 13 is arranged in the damping groove 12. The two ends of the damping rivet 13 are respectively fixed on the left limit plate 5 and the right limit plate 6. The damping rivet 13 provides damping force for the rotation of the middle fixed plate 3 to improve the operating texture.

[0039] Further, continue as Figures 5 to 7 As shown, in this embodiment, the card 7 is a rectangular block, the locking groove 311 is a rectangular groove matching the card 7, the unlocking groove 312 is located on the inner side of the locking groove 311, and the unlocking groove 312 crosses and overlaps with one end of the locking groove 311 close to the fixed rotating shaft sleeve 2;

[0040] The surface where the unlocking thrust stop point 612 contacts the card 7 is an arc surface, and the card 7 does not contact the unlocking thrust stop point 612 when located in the unlocking slot 312 .

[0041] Further, if Figures 1 to 5 As shown, in this embodiment, the left cover 9, the left limit plate 5, the retaining plastic frame 4, the right limit plate 6, and the right cover 10 are connected as a whole by two rivets 15 and fixed to the seat back frame by bolts.

[0042] In another embodiment, the present invention further provides a seat side armrest with adjustable angle, the seat side armrest comprising an armrest body (not shown) and the above-mentioned side armrest angle adjustment mechanism, the armrest body is fixed on the fixed end shaft of the side armrest angle adjustment mechanism, the side armrest angle adjustment mechanism is installed on a seat back frame (not shown), and the seat side armrest angle can be adjusted by adjusting the armrest body to drive the fixed end shaft to rotate.

[0043] like Figure 7 As shown, the working principle of the angle adjustment mechanism provided in this embodiment is as follows:

[0044] In the initial state, the card 7 is set in the locking groove 311 and is located at the starting end of the limiting tooth 611. When the armrest is adjusted, the fixed end shaft 2 is driven to rotate by the armrest body, thereby driving the middle fixed disk 3 to rotate. At this time, the card 7 slides along the limiting teeth 611 of the left limiting disk and the right limiting disk 6 under the action of the spring sheet 8, and when the armrest body rotates in the opposite direction, the card 7 will be stuck on the limiting tooth 611 to achieve the angle adjustment of the armrest; when the armrest needs to be unlocked, the armrest body is continued to be driven to rotate the card 7 to the unlocking thrust stop point 612. At this time, under the push of the unlocking thrust stop point 612, the card 7 rotates a certain angle and returns to the unlocking groove 312 to achieve unlocking; then the armrest body is driven in the opposite direction to rotate the card 7 to the locking thrust stop point 613. At this time, under the push of the locking thrust stop point 613, the card 7 rotates a certain angle and returns to the locking groove 311, that is, returns to the initial design state, and continues to adjust the angle.

[0045] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A side armrest angle adjustment mechanism, It is characterized in that It includes a fixed end shaft, a fixed rotating sleeve, an intermediate fixed disk, a retaining plastic frame, a left limit disk, a right limit disk, a card, and a spring; wherein the fixed end shaft is fixedly connected to the fixed rotating sleeve; The intermediate fixed disk is installed on the fixed rotating sleeve and rotates coaxially with the fixed rotating sleeve; the intermediate fixed disk is processed with a card installation slot and a spring installation slot; the card installation slot and the spring installation slot are in a connected state; the card is arranged in the card installation slot; the spring is arranged in the spring installation slot, and one end of the spring contacts the card and presses the card tightly; the card installation slot includes a locking slot and an unlocking slot connected with the locking slot, and the card is located in the locking slot or the unlocking slot; The plastic retaining frame is processed with a radial limit groove matching the middle fixed disk, the middle fixed disk is installed in the radial limit groove of the plastic retaining frame and rotates relative to the plastic retaining frame; the left limit disk and the right limit disk are arranged on both sides of the plastic retaining frame; The left limit plate and the right limit plate are fixedly connected to the holding plastic frame through the fixed rotating shaft sleeve, which are used to limit the axial movement of the middle fixed plate; the left limit plate and the right limit plate are symmetrical structures, and an angle adjustment slot is processed on them to cooperate with the card to realize angle adjustment; a limiting tooth is provided on the outer wall of the angle adjustment slot to cooperate with the card to realize angle adjustment when the card is located in the locking slot, and the limiting tooth is used to limit the card so that it can only rotate in the clockwise direction, and the card does not contact the limiting tooth when the card is located in the unlocking slot; an unlocking thrust stop point is provided at one end of the angle adjustment slot away from the limiting tooth, and when the middle fixed plate rotates clockwise, the card in the locking slot returns to the unlocking slot under the action of the unlocking thrust stop point; the angle adjustment slot is provided with a locking thrust stop point at a position close to the starting end of the limiting tooth, and when the middle fixed plate rotates counterclockwise, the card in the unlocking slot returns to the locking slot under the action of the locking thrust stop point; The angle adjustment mechanism further includes a left cover and a right cover, wherein the left cover and the right cover are respectively arranged on the outside of the left limit plate and the right limit plate, and are fixedly connected to the left limit plate and the right limit plate; The middle fixed disk is processed with a hexagonal assembly groove at the axis position, and the circumference of the fixed rotating sleeve is provided with a hexagonal assembly part matching the hexagonal assembly groove. The middle fixed disk is installed at the hexagonal assembly part of the fixed rotating sleeve, and the end is locked and fixed by a nut; The middle fixed plate is processed with a damping installation groove, the damping installation groove is provided with a damping groove, the damping groove is a plastic part, a damping rivet is provided in the damping groove, and the two ends of the damping rivet are respectively fixed on the left limit plate and the right limit plate; The fixed end shaft is connected to the fixed rotating shaft via a spline, and an omega spring is provided at the end of the fixed end shaft.

2. A side armrest angle adjustment mechanism according to claim 1, It is characterized in that The card is a rectangular block, the locking groove is a rectangular groove matching the card, the unlocking groove is located on the inner side of the locking groove, and the unlocking groove crosses and overlaps with one end of the locking groove close to the fixed rotating sleeve.

3. A side armrest angle adjustment mechanism according to claim 1, It is characterized in that The surface of the unlocking thrust stop point in contact with the card is an arc surface, and the card does not contact the unlocking thrust stop point when it is located in the unlocking slot.

4. A side armrest angle adjustment mechanism according to claim 1, It is characterized in that The left cover, the left limiting plate, the retaining plastic frame, the right limiting plate and the right cover are connected as a whole through two rivets and are fixed on the seat back frame through bolts.

5. An adjustable seat side armrest. It is characterized in that The seat side armrest comprises an armrest body and the side armrest angle adjustment mechanism according to any one of claims 1 to 4, wherein the armrest body is fixed on the fixed end shaft of the side armrest angle adjustment mechanism, and the seat side armrest angle is adjusted by adjusting the armrest body to drive the fixed end shaft to rotate.

6. The angle-adjustable seat side armrest according to claim 5, It is characterized in that The side armrest angle adjustment mechanism is installed on the seat back frame.

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