Chair with four-way massage leg support

Abstract

The utility model relates to a seat with a four-way massage leg support. The seat comprises an unfolding mechanism assembly and an extending mechanism assembly, wherein the unfolding mechanism assembly is arranged on a cushion framework of the seat and can be unfolded relative to the cushion framework, and the extending mechanism assembly is arranged on the unfolding mechanism assembly and can stretch out and draw back relative to the unfolding mechanism assembly. At least one first massage mechanism is arranged on the unfolding mechanism assembly; and at least one second massage mechanism is arranged on the extension mechanism assembly. The massage area of the leg support is added, meanwhile, the full-stroke coverage of the massage function in the leg support adjusting process is achieved, the massage area can be adjusted, the requirements of people with different heights can be met, and the riding comfort is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a seat with a four-way massage leg support. Background Art

[0002] People have higher and higher requirements for the riding experience of cars, and the comfort of car seats has also attracted more and more attention from consumers. When passengers sit for a long time, their legs will remain in the same position for a long time, which will cause discomfort. To solve this problem, existing car seats are equipped with leg support mechanisms to provide support for the legs of passengers to alleviate the discomfort of the legs.

[0003] Furthermore, the existing leg rest mechanism also has a massage function, which can provide massage for the legs of the occupants to relieve leg fatigue. A prior Chinese patent (application number 202320307594.5, the name of the invention is a four-way electric massage leg rest) discloses a four-way electric massage leg rest, including a rotating mechanism connected to the seat frame, a telescopic mechanism connected to the rotating mechanism, a leg rest connected to the telescopic mechanism, and a leg rest foam and skin sleeved on the leg rest, wherein a vibrator for massage is provided on the leg rest. The massage leg rest sets the vibrator on the leg rest, and there is no massage at the location of the rotating mechanism, so the massage area is relatively limited and the comfort is low. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provide a chair with a four-way massage leg rest, so as to solve the problems that the existing massage leg rest has a limited massage area and low comfort because the vibrator is arranged on the extended leg rest plate.

[0005] The technical solution to achieve the above purpose is:

[0006] The utility model provides a chair with a four-way massage leg rest, comprising an unfolding mechanism assembly arranged on a seat cushion frame of the chair and capable of being unfolded relative to the seat cushion frame, and an extending mechanism assembly arranged on the unfolding mechanism assembly and capable of being retracted relative to the unfolding mechanism assembly;

[0007] At least one first massage mechanism is provided on the deployment mechanism assembly;

[0008] At least one second massage mechanism is provided on the extension mechanism assembly.

[0009] A further improvement of the seat with a four-way massage leg rest of the utility model is that a cavity is formed in the front part of the deployment mechanism assembly;

[0010] The extension mechanism assembly is slidably disposed in the cavity.

[0011] A further improvement of the seat with four-way massage leg rest of the utility model is that the unfolding mechanism assembly comprises a leg rest frame and a leg rest cover fixedly connected to the leg rest frame, and the cavity is formed between the leg rest frame and the leg rest cover.

[0012] A further improvement of the seat with a four-way massage leg rest of the utility model is that the unfolding mechanism assembly also includes a connecting rod mechanism connected to the leg rest frame, the connecting rod mechanism is connected to the seat cushion frame through a mounting bracket, and an elastic element is provided at the connection between the connecting rod mechanism and the mounting bracket.

[0013] A further improvement of the chair with a four-way massage leg rest of the utility model is that a cover assembly is provided on the deployment mechanism assembly and the extension mechanism assembly, and the cover assembly bypasses the bottom and rear of the extension mechanism assembly and is connected to the leg rest frame;

[0014] When the extension mechanism assembly is telescopically adjusted relative to the unfolding mechanism assembly, the face cover assembly can be unfolded or folded.

[0015] A further improvement of the chair with four-way massage leg rest of the utility model is that the unfolding mechanism assembly and the extending mechanism assembly are also covered with leg rest foam;

[0016] The leg support foam has a first exposure opening corresponding to each of the first massage mechanisms, and a second exposure opening corresponding to each of the second massage mechanisms;

[0017] Each of the first massage mechanisms is disposed on the leg support cover and passes through each corresponding first exposure opening to fit with the face cover assembly;

[0018] Each of the second exposed openings is configured to extend along the extension direction of the extension mechanism assembly so that when the extension mechanism assembly is extended or retracted, each of the second massage mechanisms can pass through each of the second exposed openings and fit with the face cover assembly.

[0019] A further improvement of the seat with a four-way massage leg rest of the utility model is that a second wire harness inlet and a second wire harness outlet are provided on the leg rest foam corresponding to the second massage mechanism, and a second channel is provided between the second wire harness inlet and the second wire harness outlet;

[0020] The second wire harness of the second massage mechanism extends from the second wire harness outlet, passes through the second channel and then enters from the second wire harness inlet, thereby limiting the position of the second wire harness.

[0021] A further improvement of the seat with a four-way massage leg rest of the utility model is that the second wire harness of the second massage mechanism is fixed to the leg rest frame by a buckle.

[0022] A further improvement of the seat with a four-way massage leg rest of the utility model is that the extension mechanism assembly includes an extension sheet metal and a plastic component assembly covering the extension sheet metal, and the extension sheet metal is connected to the leg rest frame through a slide rail mechanism so that the extension sheet metal can be slidably disposed in the cavity.

[0023] A further improvement of the chair with four-way massage leg rest of the utility model lies in that the first massage mechanism and / or the second massage mechanism is one of a massage motor, a massage air bag and a massage roller.

[0024] The beneficial effects of the four-way massage leg support of the utility model are:

[0025] The utility model provides a first massage mechanism on the unfolding mechanism assembly and a second massage mechanism on the extending mechanism assembly, thereby increasing the massage area of ​​the leg rest and realizing full-stroke coverage of the massage function during the leg rest adjustment process, so that the massage area is adjustable, which can meet the needs of people of different heights and improve ride comfort.

[0026] The cavity is formed on the deployment mechanism assembly in the utility model for accommodating the extension mechanism assembly, so that there is no height difference between the extension mechanism assembly and the leg rest assembly in the extended state, and the front of the face cover covering the deployment mechanism assembly and the extension mechanism assembly can completely fit the passenger, and at the same time, the first massage mechanism and the second massage mechanism can pass through the back of the foam fitting face cover, which improves the comfort of the leg rest and also realizes that the leg rest has good massage performance in all postures.

[0027] The four-way massage leg rest in the utility model can achieve different height / angle adjustments through the unfolding mechanism assembly and the extending mechanism assembly. The first massage mechanism and the second massage mechanism are independent structures and can be independently controlled. Massage can be performed simultaneously during the leg rest adjustment process or after the leg rest adjustment is completed.

[0028] The connection between the unfolding mechanism assembly and the automobile seat frame in the utility model is provided with an elastic element, which can effectively isolate vibration, and other parts except the leg rest have no obvious vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the four-way massage leg support without the cover assembly in the utility model.

[0030] Figure 2 for Figure 1 Exploded structural diagram of the structure shown.

[0031] Figure 3 It is a structural schematic diagram of the middle leg support cover of the utility model.

[0032] Figure 4 for Figure 3 Sectional view of AA.

[0033] Figure 5 for Figure 3 Exploded structural diagram of the structure shown.

[0034] Figure 6 The utility model is a schematic diagram of the installation structure of the leg support frame and the driving member in the seat with four-way massage leg support.

[0035] Figure 7 The utility model is an exploded structural schematic diagram of the extension mechanism assembly of the seat with a four-way massage leg rest.

[0036] Figure 8 It is a cross-sectional view of the seat with a four-way massage leg rest according to the utility model when the extension mechanism assembly is in a retracted state.

[0037] Fig. 9 It is a cross-sectional view of the seat with a four-way massage leg rest according to the utility model when the extension mechanism assembly is in an extended state.

[0038] Fig.10 It is a cross-sectional view of the extension mechanism assembly of the seat with a four-way massage leg rest of the present invention being retracted into the cavity of the deployment mechanism assembly.

[0039] Fig.11 It is a cross-sectional view of the extension mechanism assembly of the seat with four-way massage leg rest of the utility model extending outside the deployment mechanism.

[0040] Fig.12 It is a cross-sectional view of the wiring harness arrangement of the first massage mechanism and the second massage mechanism of the seat with a four-way massage leg rest of the utility model.

[0041] Fig.13 The utility model is a bottom view of the wiring harness arrangement of the second massage mechanism of the seat with a four-way massage leg rest.

[0042] Fig.14 It is a schematic diagram of the exploded structure of the seat with four-way massage leg support connected to the mounting bracket of the utility model.

[0043] Fig.15 This is a schematic structural diagram of a chair with a four-way massage leg rest according to the utility model, in which the first massage mechanism and the second massage mechanism are massage air cushions.

[0044] Fig.16 for Fig.15 Exploded structural diagram of the structure shown.

[0045] Fig.17This is a schematic structural diagram of a chair with a four-way massage leg rest according to the utility model, in which the first massage mechanism and the second massage mechanism are massage rollers.

[0046] Fig.18 for Fig.17 Exploded structural diagram of the structure shown.

[0047] Fig.19 It is a structural schematic diagram of the chair with four-way massage legs of the utility model when the massage leg rest is in an unused state.

[0048] Fig. 20 It is a structural schematic diagram of the seat with four-way massage legs of the utility model when the unfolding mechanism assembly of the massage leg support is in a raised state.

[0049] Fig.21 It is a structural schematic diagram of a chair with four-way massage legs according to the utility model, in which the extension mechanism assembly of the massage leg support is in an extended state.

[0050] Fig. 22 for Fig.21 The schematic diagram of the structure of the deployment mechanism assembly and the extension mechanism assembly without the foaming of the leg rest is shown in the state.

[0051] Fig.23 for Fig. 22 The schematic diagram of the structure of the deployment mechanism assembly and the extension mechanism assembly without the foaming of the leg rest is shown in the state.

[0052] Fig.24 for Fig.21 The schematic diagram of the structure of the deployment mechanism assembly and the extension mechanism assembly without the foaming of the leg rest is shown in the state.

[0053] Fig.25 for Fig. 22 Side view of the structure shown.

[0054] Fig.26 for Fig.23 Side view of the structure shown.

[0055] Fig. 27 for Fig.24 Side view of the structure shown.

[0056] Description of reference numerals:

[0057] Seats 10; Four-way massage leg rests—20;

[0058] Deployment mechanism assembly-21; cavity-211; leg support frame-212; bracket-2121; steel wire-2122; leg support foam-213; first exposure opening-2131; second exposure opening-2132; first wire harness inlet-2133; second wire harness inlet-2134; first communication channel-2135; second communication channel-2136; second wire harness outlet-2137; leg support cover-214; side wing plate-2141; mounting groove-2142; first soft rubber box-215; first rubber nail-2151; first vertical rib structure-2152; buckle-216; connecting rod mechanism-217;

[0059] Extension mechanism assembly—22; extension sheet metal—221; upper plastic part—222; lower plastic part—223; left plastic part—224; right plastic part—225; second soft plastic box—226; second rubber nail—227; second vertical rib structure—2261;

[0060] The first massage mechanism 23; the first wiring harness 231; the second massage mechanism 24; the second wiring harness 241; the face cover assembly 25; the face cover 251; the hook 252; the elastic element 26; the driving member 27; the slide rail mechanism 28; the upper rail 281; the lower rail 282; and the mounting bracket 29. DETAILED DESCRIPTION

[0061] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0062] See also Figure 1 The utility model provides a seat with a four-way massage leg rest, which can be unfolded and extended, and a massage mechanism is provided on both the leg rest assembly and the extension mechanism assembly, thereby increasing the massage area of ​​the leg rest and achieving full coverage of the massage function during the leg rest adjustment process, so that the massage area is adjustable, which can meet the needs of people of different heights and improve the riding comfort. The utility model is described below in conjunction with the accompanying drawings.

[0063] See also Figure 1 , showing the schematic diagram of the structure of the utility model four-way massage leg support without the cover assembly. Figure 2 , showing Figure 1 The exploded structure diagram of the structure shown is shown below. Figure 1 and Figure 2 , the structure of the four-way massage leg support of the utility model is described.

[0064] like Figure 1 and Figure 2As shown, the seat with a four-way massage leg rest of the utility model includes an unfolding mechanism assembly 21, an extension mechanism assembly 22, a first massage mechanism 23 and a second massage mechanism 24; wherein, the unfolding mechanism assembly 21 is arranged on the seat cushion frame of the seat, and the unfolding mechanism assembly 21 can be unfolded and adjusted relative to the seat cushion frame; the extension mechanism assembly 22 is arranged on the unfolding mechanism assembly 21, and the extension mechanism assembly 22 can be telescopically adjusted relative to the unfolding mechanism assembly 21, specifically, the extension mechanism assembly 22 can be adjusted to an extended state or a retracted state relative to the unfolding mechanism assembly 21; the first massage mechanism 23 is arranged on the unfolding mechanism assembly 21, and the second massage mechanism 24 is arranged on the extension mechanism assembly 22, and the number of the first massage mechanism 23 and the second massage mechanism 24 is at least one.

[0065] Combination Figures 19 to 21 As shown, the four-way massage leg support 20 is rotatably mounted on the front part of the seat cushion frame of the seat 10, thereby forming a seat with a four-way massage leg support. The unfolding mechanism assembly 21 can be rotated to the unfolded state, and the effect is as follows Fig. 20 As shown, the extension mechanism assembly 22 can be adjusted to an extended state relative to the deployment mechanism assembly 21, and the effect is as follows Fig.21 In actual use, the passenger can adjust the deployment mechanism assembly 21 and the extension mechanism assembly 22 accordingly according to their needs, and after the adjustments are completed, the first massage mechanism 23 and / or the second massage mechanism 24 can be activated for massage according to their needs.

[0066] The utility model provides a seat with a four-way massage leg rest, which realizes full-stroke coverage of the massage function during the leg rest adjustment process due to the first massage mechanism 23 and the second massage mechanism 24, so that the massage area is adjustable, which can meet the needs of people of different heights and improve the riding comfort.

[0067] In a specific embodiment of the present invention, Figure 2 , Figure 5 , Fig.10 and Fig.11 As shown, a cavity 211 is provided at the front of the unfolding mechanism assembly 21 ; the extending mechanism assembly 22 is slidably disposed in the cavity 211 , and the extending mechanism assembly 22 can extend from the cavity 211 to be in an extended state or be placed in the cavity 211 to be in a retracted state.

[0068] The cavity 211 is formed by the front part of the unfolding mechanism assembly 21 to set the extension mechanism assembly 22, so that when the extension mechanism assembly 22 is in the extended state, the upper surface of the extension mechanism assembly 22 is lower than the upper surface of the unfolding mechanism assembly 21. Fig.24 and Fig. 27As shown, the upper surfaces of the deployment mechanism assembly 21 and the extension mechanism assembly 22 are inclined downward, which is just adapted to the posture of the calf of the occupant. Therefore, massage mechanisms are respectively arranged on the deployment mechanism assembly 21 and the extension mechanism assembly 22, which can provide a good massage function for the calf of the occupant.

[0069] Furthermore, if Figure 2 , Figure 6 and Fig.14 As shown, the unfolding mechanism assembly 21 includes a leg support frame 212 and a leg support cover 214 fixedly connected to the leg support frame 212 , and a cavity 211 is formed between the leg support cover 214 and the leg support frame 212 .

[0070] Furthermore, side wing plates 2141 extending downward are provided on both sides of the leg support cover 214, and brackets 2121 connected to the top of the leg support cover 214 are provided on both sides of the leg support frame 212. The leg support cover 214 is covered on the top of the leg support frame 212, and the top of the leg support cover 214 is fastened to the brackets 2121 by fasteners such as countersunk screws, self-tapping screws or bolts. The side wing plates 2141 on the leg support cover 214 are blocked on the side of the leg support frame 212, and a cavity 211 is formed between the top of the leg support frame 212 and the bottom of the leg support cover 214, and the side wing plates 2141 block the side of the cavity 211.

[0071] In a specific embodiment of the present invention, Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, the unfolding mechanism assembly 21 and the extending mechanism assembly 22 are covered with a face cover assembly 25, and the face cover assembly 25 bypasses the bottom and rear of the extending mechanism assembly 22 and is fixedly connected to the leg support frame 212 of the unfolding mechanism assembly 21; when the extending mechanism assembly 22 is telescopically adjusted relative to the unfolding mechanism assembly 21, the face cover assembly 25 can be unfolded or folded.

[0072] The face cover assembly 25 covers both the deployment mechanism assembly 21 and the extension mechanism assembly 22, so that the deployment mechanism assembly 21 and the extension mechanism assembly 22 share one face cover assembly 25, and the face cover assembly 25 between the deployment mechanism assembly 21 and the extension mechanism assembly 22 is arranged without a gap. The face cover assembly 25 can be extended and deployed as the extension mechanism assembly 22 is extended, and can also be retracted and folded as the extension mechanism assembly 22 is retracted.

[0073] Furthermore, if Figure 8 and Fig. 9As shown, the face cover assembly 25 includes a face cover 251, which is covered on the deployment mechanism assembly 21 and the extension mechanism assembly 22, and then the face cover 251 bypasses the front part of the extension mechanism assembly 22, and then partially covers the bottom of the extension mechanism assembly 22, and then bypasses the rear part of the extension mechanism assembly 22 to be fixedly connected with the front part of the leg support frame 212 of the deployment mechanism assembly 21. Preferably, a hook 252 is provided at the end of the face cover 251, and a steel wire 2122 is provided at the front part of the leg support frame 212 of the deployment mechanism assembly 21 corresponding to the hook 252, and the face cover 251 is fixedly connected to the deployment mechanism assembly 21 by hooking the hook 252 on the steel wire 2122.

[0074] like Figure 8 As shown, the extension mechanism assembly 22 is retracted into the cavity 211 of the deployment mechanism assembly 21, and a portion of the face cover 251 is located between the extension mechanism assembly 22 and the deployment mechanism assembly 21, so that the surface of the face cover 251 at the top of the deployment mechanism assembly 21 is smooth and wrinkle-free. Fig. 9 As shown, when the extension mechanism assembly 22 extends out of the cavity 211 of the unfolding mechanism assembly 21, the face cover 251 extends out, and the extended dimension is consistent with the extended dimension of the extension mechanism assembly 22. The surface of the face cover 251 covering the top of the unfolding mechanism assembly 21 and the extension mechanism longitudinal 22 is also flat and wrinkle-free.

[0075] Furthermore, a flexible sliding body is fixed on the inner side surface of the face cover 251, and sliding grooves are set at the top (i.e., the upper surface), front (i.e., the front surface), bottom (i.e., the lower surface), rear (i.e., the rear surface) and interior (the interior is the upper surface of the bottom) of the extension mechanism assembly 22, and the flexible sliding body is slid in the sliding groove. The sliding groove and the flexible sliding body are unable to separate from each other through the cooperation of a limiting structure (for example, ribs can be set on the flexible sliding body, the sliding groove is designed as a dovetail groove, and the ribs are slid in the dovetail groove; or the flexible sliding body and the sliding groove adopt a T-shaped structure). The flexible sliding body can slide along the sliding groove, thereby improving the smoothness of the unfolding and folding process of the face cover 251 as the extension mechanism assembly 22 extends and retracts.

[0076] Furthermore, the unfolding mechanism assembly 21 and the extending mechanism assembly 22 are also covered with a leg support foam 213, and the leg support foam 213 is arranged below the face cover 251. The leg support foam 213 is connected to the face cover 251 and can be adjusted in position as the face cover 251 is unfolded and folded.

[0077] In a specific embodiment of the present invention, Figure 1 and Figure 2As shown, the leg support foam 213 is provided with a first exposure opening 2131 corresponding to each first massage mechanism 23, and a second exposure opening 2132 corresponding to each second massage mechanism 24; each first massage mechanism 23 is arranged on the leg support cover 214 and passes through each corresponding first exposure opening 2132 to fit with the face cover assembly 25; each second exposure opening 2132 is arranged to extend along the extension direction of the extension mechanism assembly 22 so that when the extension mechanism assembly 22 is extended or retracted, each second massage mechanism 24 can pass through each second exposure opening 2132 to fit with the face cover assembly 25.

[0078] Combination Fig. 9 As shown, when the extension mechanism assembly 22 is in the extended state, the first massage mechanism 23 is located below the face cover 251 through the first exposure opening 2131, and the second massage mechanism 24 is located below the face cover 251 through the second exposure opening 2132. When the calf of the occupant is placed on the deployment mechanism assembly 21 and the extension mechanism assembly 22, it can contact the first massage mechanism 23 and the second massage mechanism 24 through the face cover 251, thereby improving the massage effect of the massage mechanism.

[0079] Furthermore, if Figure 1 and Figure 2 As shown, the leg support foam 213 is provided with a first harness inlet 2133 corresponding to the first massage mechanism 23, and the first harness inlet 2133 is provided in front of the first exposure opening 2131, and a first connecting channel 2135 is provided between the first harness inlet 2133 and the first exposure opening 2131; the bottom of the first connecting channel 2135 does not penetrate the bottom surface of the leg support foam 213. Fig.12 As shown, the first wire harness 231 of the first massage mechanism 23 passes through the first connecting channel 2135 and then passes through the first wire harness inlet 2133 to be connected to the power source.

[0080] The leg support foam 213 has a second harness inlet 2134 and a second harness outlet 2137 corresponding to the second massage mechanism 24. A second channel 2136 is provided between the second harness inlet 2134 and the second harness outlet 2137. The bottom of the second connecting channel 2136 does not penetrate the bottom surface of the leg support foam 213. The second harness inlet 2134 and the second harness outlet 2137 are provided in front of the second exposure port 2132. Fig.12 and Fig.13As shown, the second wire harness 241 of the second massage mechanism 24 is laid on the leg support frame 212, extends from the second wire harness outlet 2137, passes through the second connecting channel 2136 and then enters from the second wire harness inlet 2134, and then connects to the power supply, so as to limit the position of the second wire harness 241. Furthermore, the second wire harness 241 is fixed to the leg support frame 212 by the buckle 216, which improves the stability of the second wire harness 241. The second wire harness 241 is relatively long, and the buckle 216 and the second wire harness 241 bypassing the leg support foam 213 can avoid the phenomenon of the second wire harness being entangled, so as to limit the position of the second wire harness. The part of the second wire harness 241 between the buckle 216 and the second massage mechanism 24 is left with a margin to facilitate the telescopic adjustment of the extension mechanism assembly 22. In addition, an opening is set on the leg support foam 213 for the wire harness to pass through, so that the wire harness can avoid the driving member 27 set on the leg support frame that drives the extension mechanism assembly to telescope.

[0081] The first wire harness 231 of the first massage mechanism 23 passes through the leg support foam 213 through the first wire harness entrance 2133 and enters the interior of the leg support frame 212. The second wire harness 241 of the second massage mechanism 24 passes through the second wire harness exit 2137 and the second wire harness entrance 2134 and partially bypasses the leg support foam 213 and then enters the interior of the leg support frame 212. A wire harness fixing frame is provided at the rear end of the leg support frame 212, and the first wire harness 231 and the second wire harness 241 are fixed to the wire harness fixing frame by buckles. The first wire harness 231 and the second wire harness 241 are combined and connected to the wire harness of the car seat.

[0082] Furthermore, if Fig.10 As shown, the top surface of the first massage mechanism 23 is flush with the top surface of the leg support foam, and the top surface of the second massage mechanism 24 is flush with the top surface of the leg support foam at the second exposed opening, so that the surface of the face cover 251 can be flat and beautiful.

[0083] In a specific embodiment of the present invention, Fig.14 As shown, the unfolding mechanism assembly 21 also includes a connecting rod mechanism 217 connected to the leg support frame 212. The connecting rod mechanism 217 is connected to the seat cushion frame through a mounting bracket 29. An elastic element 26 is provided at the connection between the connecting rod mechanism 217 and the mounting bracket 29. The elastic element 26 can provide a good vibration isolation effect.

[0084] Preferably, the elastic element 26 is made of soft rubber material, silicone material or foam material, etc., and can absorb energy through deformation to achieve a vibration isolation effect.

[0085] Furthermore, the mounting bracket 29 is connected to the connecting rod mechanism 217 of the deployment mechanism assembly 21 by fasteners such as bolts and screws. An elastic element 26 is embedded in the connecting hole of the mounting bracket 29. The elastic element 26 has an opening and is cylindrical as a whole. The setting of the opening facilitates the installation of the elastic element 26. The fastener passes through the elastic element 26 to fasten the mounting bracket 29 and the connecting rod mechanism 217.

[0086] Furthermore, the mounting bracket 29 may be a component connected to the seat cushion frame, or may be a part of the seat cushion frame.

[0087] Furthermore, the connecting rod mechanism 217 is used to drive the unfolding mechanism assembly 21 to perform unfolding adjustment, and is also used to drive the unfolding mechanism assembly 21 to perform folding adjustment.

[0088] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the first massage mechanism 23 and the second massage mechanism 24 are both massage motors; Figure 7 As shown, the unfolding mechanism assembly 21 and the extending mechanism assembly 22 are provided with a first soft plastic box 215 and a second soft plastic box 226 for installing the massage motors corresponding to the massage motors.

[0089] like Figures 2 to 5 As shown, a mounting groove 2142 is provided on the leg support cover 214 corresponding to the first soft plastic box 215, and the lower part of the first soft plastic box 215 is placed in the mounting groove 2142, and then the first soft plastic box 215 is fixedly connected to the leg support cover 214 through a first rubber nail 2151 provided at the bottom.

[0090] A first vertical rib structure 2152 is provided on the inner side of the first soft plastic box 215 , and the massage motor is supported by the first vertical rib structure 2152 , and the massage motor is inserted into the first soft plastic box 215 .

[0091] like Figure 2 , Figure 7 and Figure 8 As shown, the extension mechanism assembly 22 includes an extension sheet metal 221, an upper plastic part 222 arranged on the extension sheet metal 221, a lower plastic part 223 arranged under the extension sheet metal 221, a left plastic part 224 arranged on the left side of the extension sheet metal 221, and a right plastic part 225 arranged on the right side of the extension sheet metal 221. The upper plastic part 222, the lower plastic part 223, the left plastic part 224 and the right plastic part 225 are fastened to the extension sheet metal 221 by fasteners such as countersunk screws, self-tapping screws, and bolts. The upper plastic part 222, the lower plastic part 223, the left plastic part 224 and the right plastic part 225 form a plastic part assembly.

[0092] A second soft plastic box 226 is disposed on the upper plastic part 222 , and the second soft plastic box 226 is fixedly connected to the upper plastic part 222 via a second rubber nail 227 .

[0093] A second vertical rib structure 2261 is provided on the inner side of the second soft plastic box 226 , and the massage motor is supported by the second vertical rib structure 2261 , and the massage motor is inserted into the second soft plastic box 226 .

[0094] Furthermore, if Figure 2 and Figure 6 As shown, a driving member 27 is provided on the unfolding mechanism assembly 21 , and the driving member 27 is drivingly connected to the extending mechanism assembly 22 . The driving member 27 can drive the extending mechanism assembly 22 to adjust its position relative to the unfolding mechanism assembly 21 .

[0095] The driving member 27 is fastened to the leg support frame 212 by fasteners such as bolts and self-tapping screws.

[0096] The movable slider at the front of the driving member 27 is fixedly connected to the corresponding position of the extended sheet metal 222 by fasteners such as bolts and self-tapping screws.

[0097] The driving member 27 is preferably a screw motor, or a driving cylinder, an electric cylinder, etc.

[0098] Furthermore, if Figure 2 , Figure 7 , Fig.10 and Fig.11 As shown, the extension sheet metal 221 of the extension mechanism assembly 22 is connected to the leg support frame 212 of the unfolding mechanism assembly 21 through the slide rail mechanism 28 so that the extension sheet metal 221 can be slidably disposed in the cavity 211 .

[0099] The slide rail mechanism 28 includes an upper rail 281 and a lower rail 282. The upper rail 281 is slidably mounted on the lower rail 282. The lower rail 282 is fastened to the leg support frame 212 by bolts, self-tapping screws and other fasteners. The upper rail 281 is fastened to the extension sheet metal 221 by bolts, self-tapping screws and other fasteners. The upper rail 281 and the lower rail 282 can guide and limit the extension and retraction adjustment of the extension mechanism assembly 22.

[0100] In a specific implementation of the present invention, the first massage mechanism 23 and the second massage mechanism 24 are at least one of a massage motor, a massage air bag and a massage roller.

[0101] The first massage mechanism 23 and the second massage mechanism 24 may be the same or different.

[0102] Figure 1 In the illustrated embodiment, the first massage mechanism 23 and the second massage mechanism 24 are both massage motors.

[0103] like Fig.15 and Fig.16 As shown, in this embodiment, the first massage mechanism 23 and the second massage mechanism 24 are both massage air bags to start the massage. The massage air bags are connected to the controller through an air pipe. When setting, the massage air bags are set on the surface of the leg support foam 213. The number of massage air bags can be selected according to the size of the leg support foam 213. For example, two left and right columns of massage air bags can be set, and 3 massage air bags are set in each column.

[0104] like Fig.17 and Fig.18 As shown, in this embodiment, the first massage mechanism 23 and the second massage mechanism 24 are both massage rollers to achieve mechanical massage. The massage roller is embedded in the exposed opening of the leg support foam 213, and the massage roller rolls under the control of the controller to achieve the massage function. The number of massage rollers can be selected according to the size of the leg support foam 213. For example, a total of four massage rollers are set.

[0105] The following is an explanation of the use process of the four-way massage leg support of the present invention.

[0106] like Fig.19 , Fig. 22 and Fig.25 As shown, the four-way massage leg support 20 is vertically attached to the front of the seat 10 when not in use.

[0107] When using, Fig. 20 , Fig.23 and Fig.26 As shown, the unfolding mechanism assembly 21 can be rotated and adjusted to be in an unfolded state, and the rotation angle of the unfolding mechanism assembly 21 can be adjusted as needed. Fig. 20 The posture shown can meet the leg support requirement, and there is no need to adjust the position of the extension mechanism assembly 22. At this time, the first massage mechanism can be activated to perform leg massage.

[0108] like Fig. 22 , Fig.24 and Fig. 27 As shown, after adjusting the unfolding state of the unfolding mechanism assembly 21, the extension mechanism assembly 22 can be further adjusted to extend the extension mechanism assembly 22 outward, and the extension length can be adjusted according to needs. At this time, the second massage mechanism can be activated to massage the legs, and of course, the first massage mechanism can also be activated at the same time to massage the legs as needed.

[0109] 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. A chair with a four-way massage leg support, characterized in that: It comprises an unfolding mechanism assembly (21) which is arranged on the seat cushion frame of the seat and can be unfolded relative to the seat cushion frame, and an extending mechanism assembly (22) which is arranged on the unfolding mechanism assembly (21) and can be retracted relative to the unfolding mechanism assembly (21); The unfolding mechanism assembly (21) is provided with at least one first massage mechanism (23); At least one second massage mechanism (24) is provided on the extension mechanism assembly (22).

2. The chair with a four-way massage leg support as claimed in claim 1, characterized in that: A cavity (211) is formed at the front portion of the deployment mechanism assembly (21); The extension mechanism assembly (22) is slidably disposed in the cavity (211).

3. The chair with a four-way massage leg support as claimed in claim 2, characterized in that: The unfolding mechanism assembly (21) comprises a leg support frame (212) and a leg support cover (214) fixedly connected to the leg support frame (212), and the cavity (211) is formed between the leg support frame (212) and the leg support cover (214).

4. The chair with a four-way massage leg support as claimed in claim 3, characterized in that: The unfolding mechanism assembly (21) and the extending mechanism assembly (22) are covered with a cover assembly (25), and the cover assembly (25) bypasses the bottom and rear of the extending mechanism assembly (22) and is connected to the leg support frame (212); When the extension mechanism assembly (22) is telescopically adjusted relative to the unfolding mechanism assembly (21), the face cover assembly (25) can be unfolded or folded together.

5. The chair with a four-way massage leg support as claimed in claim 4, characterized in that: The unfolding mechanism assembly (21) and the extending mechanism assembly (22) are also covered with leg support foam (213); The leg support foam (213) is provided with a first exposure opening (2131) corresponding to each of the first massage mechanisms (23), and a second exposure opening (2132) corresponding to each of the second massage mechanisms (24); Each of the first massage mechanisms (23) is disposed on the leg support cover (214) and passes through each corresponding first exposure opening (2131) to fit the face cover assembly (25); Each of the second exposed openings (2132) is configured to extend along the telescopic direction of the extension mechanism assembly (22) so that when the extension mechanism assembly (22) is telescopic, each of the second massage mechanisms (24) can pass through each of the second exposed openings (2132) and fit with the face cover assembly (25).

6. The chair with a four-way massage leg support as claimed in claim 5, characterized in that: A second wire harness inlet (2134) and a second wire harness outlet (2137) are provided on the leg support foam (213) corresponding to the second massage mechanism (24), and a second channel (2136) is provided between the second wire harness inlet (2134) and the second wire harness outlet (2137); The second wire harness (241) of the second massage mechanism (24) extends from the second wire harness outlet (2137), passes through the second channel (2136) and then enters from the second wire harness inlet (2134), thereby limiting the position of the second wire harness (241).

7. The chair with a four-way massage leg support as claimed in claim 3 or 6, characterized in that: The second wire harness (241) of the second massage mechanism (24) is fixed to the leg support frame (212) via a buckle.

8. The chair with a four-way massage leg support as claimed in claim 3, characterized in that: The extension mechanism assembly (22) comprises an extension sheet metal (221) and a plastic component assembly covering the extension sheet metal (221); the extension sheet metal (221) is connected to the leg support frame (212) via a slide rail mechanism (28) so that the extension sheet metal (221) can be slidably disposed in the cavity (211).

9. The chair with a four-way massage leg support as claimed in claim 3, characterized in that: The unfolding mechanism assembly (21) also includes a connecting rod mechanism (217) connected to the leg support frame (212), the connecting rod mechanism (217) is connected to the seat cushion frame via a mounting bracket (29), and an elastic element (26) is provided at the connection between the connecting rod mechanism (217) and the mounting bracket (29).

10. The chair with a four-way massage leg support as claimed in claim 1, characterized in that: The first massage mechanism (23) and / or the second massage mechanism (24) is one of a massage motor, a massage air bag and a massage roller.

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