The present invention relates to a reclining chair, especially to a house ware of a power leisure reclining chair, which provides a user with varies of lie-down poses.
A human being is mostly in a normal gravity condition when the position of the heart is higher than the feet, no matter sitting or standing. In this condition, the blood circulation is similarly depending on the gravity. In a massage chair, considering the massage experience, a proposal is to dispose the backrest portion and the seat portion of the massage chair adjustable, so that the feet position can be higher than the heart when the human body keeps curved so that the blood circulation turns to a zero gravity or antigravity condition, so as to obtain a different massage effect. Tests show that it gets a different experience under zero gravity or antigravity condition and thus the human being gets well relax and feels comfortable.
Applied with above technology, there are leisure reclining chairs, for example in Chinese patent database with application number CN201020539131.4, disclosed is a backwardly reclined chair with a negative angle. The backwardly reclined chair is applied with a power push bar to revolve the backwardly reclined chair to a negative angle, so that the head position of the human body is lower than the position of the feet, blood flows to the head, so that the human being feels the head screwed on, and eliminates tiredness in a few minutes. This backwardly reclined chair with a negative angle comprises a seat structure and two leg assemblies, the seat structure comprises a seat portion and a calf stand, the seat portion is movably connected to the calf stand; below the seat structure, a power push bar with a switch button is fixedly attached to the leg assemblies, the head portion of the power push bar is connected to a connection point of seat structure hinge and the leg assemblies stand hinge; two sliding mechanisms are symmetrically disposed inside the chair leg assemblies; each sliding mechanism comprises a support brace fixedly disposed inside the leg assemblies, the bottom of the support brace is disposed with two spaced plane bearing rollers, two spaced concave positioning rollers are disposed above the internal side of the two plane bearing rollers; an arc brace runs through the two concave positioning rollers and the two plane bearing rollers, the rear end of the arc brace is disposed with a positioning block, the arc brace is disposed with several screws to fix to the seat structure. The measure is to disposed an arc rail convex downward below the chair, the arc rail slides between at least two fixed points, so that the whole backrest portion and seat portion slide along the travel of the arc rail to the fixed points, thus realizing a negative angle effect. This measure has obvious disadvantages: as the arc rail and the fixed points bear the whole weight of the chair and the user, it needs high cooperation precision, otherwise, the motion noise is large and the slide is bad due to deformation, burr or damage, resulting in a bad feeling, on the other hand, high cooperation precision calls for high quality of manufacturing of the motion components of the massage chairs, resulting in high costs.
Besides, for some wooden high-end leisure reclining chairs, the power push bar is usually assembled at the cross beam in the front to push the seat structure to slide on the seat frame, this structure of reclining chair needs a seat structure with high bearing stress, if the bearing stress is not even enough, when the power push bar pushes the human body to reposition to a normal sitting pose, a large counterforce on the wooden cross beam is generated thus to make the wooden cross beam broken, resulting in short service life; besides it is unsuitable for heavy users.
To solve above technical problems, the present invention is provided with a power leisure reclining chair with a wooden support assembly, the present invention can bear heavy and it has a long service life.
The technical proposal of the present invention is:
A power leisure reclining chair, comprising a seat structure, a support assembly and a main push rod, the support assembly has two oppositely-disposed wooden leg assemblies connected by a wooden cross beam, the main push rod is positioned between the seat structure and the cross beam to push the seat structure to swing on the support assembly, the seat structure comprises a seat portion and a backrest portion, wherein, a metal frame and an armrest are arranged on the said leg assembly, the support assembly has metal bars extending from a pivot pin on center portion of each leg assembly and connecting to the seat portion, the backrest portion is held at the rear portion of the leg assemblies by a rail guide system, the metal bar is pivot joint to the metal frame, the rail guide system comprises a pair of rail members and corresponding guide elements adapted for supporting and movably engaging the rail members, the guide element is fixedly attached to the leg assembly, the rail member is fixedly attached to the backrest portion, the guide element comprises a under bearing against the bottom of the rail member and a top bearing against a side portion for inhabiting upward movement of the rail member.
The technical proposal of the present invention is improved with below measures.
Each leg assembly comprises a front stanchion, a rear stanchion and a inclined brace, the lower end of the inclined brace is attached to the center portion of the front stanchion, the armrest is arranged on the inclined brace and the front stanchion, the upper end of the rear stanchion is fixedly attached to the inclined brace for providing stable support for the inclined brace. Each metal frame comprises a reinforcing bar and a support frame, two ends of the reinforcing bar are respectively fixed to the front stanchion and the inclined brace, two ends of the support frame are respectively fixed to the front stanchion and the rear stanchion, the reinforcing bar is fixedly attached to the support frame. Each support frame comprises two downward incline divergent legs, two divergent legs are respectively fixedly attached to the front stanchion and the rear stanchion, the guide element is fixedly attached to the rear divergent leg, the metal bar is movably hinged joint to the center portion of the support frame. A rail member is a bended steel pipe, one end of the rail member is welded to the backrest portion, and the other end of the rail member extending from the backrest portion to the seat portion is welded to the seat portion. The backrest portion comprising a fixed section and a movable section, the movable section is movably hinged joint to the fixed section and is revolvable, a connection of the fixed section and the movable section is further disposed with a pin structure, the pin structure comprises a pin and two pin holes, two pin holes are respectively disposed in the fixed section and the movable section, the pin, when inserts into the pin hole, prevents the movable section from revolving. The under bearing comprises a rubber roller and a bearing support, the bearing support is disposed with a lower fixed shaft, the rubber roller is sleeved on the lower fixed shaft, the bottom of the rail member abuts against the rubber roller. The bearing support is further disposed with an upper fixed shaft, the top bearing is a column and is sleeved on the upper fixed shaft, an external baffle is disposed in the external ends of the upper fixed shaft and the lower fixed shaft, the external baffle is placed at the external side of the rail members. The front portion of the seat structure is disposed with a calf stand to hold calves of a person; a subsidiary push rod is disposed between the calf stand and the seat structure to control the opening angle therebetween. The seat structure is disposed with a vibration massage device.
With above technical proposal, the present invention has following advantages:
As the support assembly to support the seat structure is wooden, and the power push bar is assembled to the wooden cross beam, it makes a very demand to the bearing structure of the support assembly. So that the present invention is disposed with a metal frame in the support assembly, the main push rod is positioned between the seat structure and the cross beam to push the seat structure to swing on the support assembly at the same time, the backrest portion is held at the rear portion of the leg assemblies by a rail guide system. When a user is normally sitting down, the whole weight of the user works on the seat portion, the weight of the user is held by the metal bars, the rail guide system at the rear side bears minor, the seat structure is in a swinging condition, the power push bar can drive the seat structure to slide with a minor force against inertia, the wooden cross beam is acted by a minor counterforce, so that it is uneasily broken. When a user is lying down, the gravity mainly works on the backrest portion of the seat structure, the weight of the user is mainly held by the rail guide system, the metal bars are acted by minor force, so that it is uneasily broken. Therefore, the wooden structure of the present invention not only improves the product level, but also improves the service life and the largest bearing weight by scenically designing the bearing structure.
The leg assemblies of the present invention are applied with a double-cross structure: the upper portion of the inclined brace and the front stanchion form an upper cross to bear the metal bar, the front stanchion, the rear stanchion and the inclined brace form a lower cross to bear the whole weight. This structure is highly stable, since two front stanchions and two rear stanchions are acted by evenly force, so as to enhance the bearing performance of the support assembly.
The present invention is applied with a support measure that the seat structure swings in the center and is supported by a roller at the rear portion, so that the pitch pose of the whole seat structure is more smooth and comfortable. The rear portion is applied with a single point roller to support, thus making it convenient to hide the support structure, so that the product is more beautiful in appearance.
Reference signs: backrest portion 1, seat portion 2, guide element 3, bearing support 301, rubber roller 302, lower fixed shaft 303, external baffle 304, upper fixed shaft 305, top bearing 306, reinforcing bar 4, metal bar 5, front stanchion 6, cross beam 7, calf stand 8, support plate 9, armrest 10, rail member 11, rear stanchion 12, inclined brace 13, support frame 14, front divergent leg 141, pin hole 142, rear divergent leg 143, subsidiary push bar 15, main push bar 16.
A power leisure reclining chair as shown in
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The work principle of the present invention is that: when a user is normally sitting on the chair, the whole weight of the user works on the seat portion, the weight of the seat structure and the user transfers to the support assembly through the metal bars, the metal bars are disposed respectively at the center of corresponding leg assemblies, so that the leg assemblies have evenly force, as the seat structure is in a swinging condition, the electric push bar only needs small force to push the seat structure to slide, so that it prevents an accident that when in initial position, the wooden cross beam may be broken under the impact of the inertial force of the seat structure from standing still to motion when pushed. When user is lying down, the weight of the user works on the backrest portion, the metal bars are in their most inclined state, so that the stress is minor, the weight of the seat structure and the user are transferred to the support assembly through the guide element, the seat structure is basically supported at a single point, as with the rubber roller, the friction therebetween is minor, the electric push bar can push the seat structure to slide and reposition with a small force, so that it prevents a situation that, when in rest position, the wooden cross beam may be broken under the impact of the inertial force of the seat structure from standing still to motion when pushed. The present invention is disposed with different support structures in different positions, and combines hanging support and a single point roller support, which effectively enhance the structure strength of the wooden reclining chair.
Although the present invention has been described with reference to the preferred embodiments thereof for carrying out the patent for invention, it is apparent to those skilled in the art that a variety of modifications and changes may be made without departing from the scope of the patent for invention which is intended to be defined by the appended claims.
The present invention relates to a power leisure reclining chair, which is applied with a support measure that the seat structure swings in the center and is supported by a roller at the rear portion, so that the pitch pose of the whole seat structure is more smooth and comfortable. The rear portion is applied with a single point roller to support, thus making it convenient to hide the support structure, so that the product is more beautiful in appearance.
Number | Date | Country | Kind |
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201320248385.4 | May 2013 | CN | national |
This application is a continuation application of an International Application No. PCT/CN2014/077040, filed May 8, 2014, which itself claims the priority to and benefit of Chinese Patent Application No. 201320248385.4, filed May 9, 2013, which are hereby incorporated herein in their entireties by reference.
Number | Date | Country | |
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Parent | PCT/CN2014/077040 | May 2014 | US |
Child | 14933739 | US |