WO2019196190A1 - 一种沙发椅架及沙发 - Google Patents

一种沙发椅架及沙发 Download PDF

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Publication number
WO2019196190A1
WO2019196190A1 PCT/CN2018/090492 CN2018090492W WO2019196190A1 WO 2019196190 A1 WO2019196190 A1 WO 2019196190A1 CN 2018090492 W CN2018090492 W CN 2018090492W WO 2019196190 A1 WO2019196190 A1 WO 2019196190A1
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WO
WIPO (PCT)
Prior art keywords
sofa
frame
arm
support member
support
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PCT/CN2018/090492
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English (en)
French (fr)
Inventor
黄敏利
Original Assignee
敏华家具制造(惠州)有限公司
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Publication of WO2019196190A1 publication Critical patent/WO2019196190A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
    • A47C7/5068—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation actuated by linkages
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/86—Parts or details for beds, sofas or couches only not fully covered in a single one of the sub-groups A47C17/02, A47C17/04, A47C17/38, A47C17/52, A47C17/64, or A47C17/84; Drawers in or under beds

Definitions

  • the invention relates to the technical field of furniture, in particular to a sofa chair frame and a sofa.
  • the existing sofa by adjusting the angle of the sofa backrest and the base, the calf shelf and the base, enables the back and the calf to be in the most comfortable position when people sit on the sofa.
  • the first promoting device 028 drives the lateral driving member 038 to move linearly so that the backrest 016 rotates against the backrest in the lying direction, and the actuating device displacement member 052 is connected to the actuator driving member 050. The movement allows the footrest to be opened or stored back.
  • the linear motion of the motor-driven push rod structure pushes the backrest and the footrest apart, and the linear motion pusher has a complicated structure and high cost; on the other hand, due to the large number of iron pieces, the assembly is troublesome, and the hinged push rod is When the mechanism fails, the complicated iron structure will make the frame difficult to be repaired and the reliability is poor.
  • the object of the present invention is to solve the problem that the backrest of the sofa frame backrest and the footrest transmission structure are complicated, the assembly is difficult, and the reliability is poor.
  • a sofa chair frame comprising a support member supporting a backrest or a calf frame of the sofa; and the sofa frame further comprising a driving device for driving the rotary movement of the support member.
  • the calf frame plate for stretching or contracting the sofa is used, and the backrest of the rotary motion lifting sofa is adopted.
  • the rotary motion structure is significantly simplified and the reliability is enhanced.
  • the sofa frame also has a swivel connector, and the swivel connector is connected at one end to the support structure and at the other end to the drive device. Since the rotary connecting member connects the driving device and the supporting structure, the driving device drives the rotary connecting member to rotate, and the supporting structure is also rotated, that is, the rotary motion, thereby realizing the lifting or opening of the backrest or the calf support plate.
  • the frame structure under the mechanism of the rotary motion requires only a single rotary joint to realize the driving device to drive the support member to rotate, the cost of manufacturing the component is greatly reduced, the number of connecting components is reduced, and the reliability is also improved.
  • the rotary joint has an internal gear or an external gear
  • the drive device has an external gear or an internal gear
  • the internal gear and the external gear mesh mesh with the transmission to effectively realize the rotation of the frame and position it at an adjusted angle.
  • the support member includes a first support member supporting the hamstring plate, the second support member supporting the backrest, and the driving device includes a first driving device that drives the first support member to rotate and a second drive A second drive device that rotates the support member.
  • the two driving devices respectively drive the backrest and the lower leg frame, and the link transmission mechanism is further omitted from the prior art single motor driving structure.
  • the swivel joint includes a first swivel joint and a second swivel joint
  • the first support member includes at least two first arms that are oppositely disposed to support the calf support plate
  • the second support member includes oppositely disposed and supports the backrest At least two second arms
  • a first swivel connector is fixedly coupled to the first arm
  • a second swivel connector is fixedly coupled to the second arm
  • the first drive and the second drive independently drive the first arm and the second arm, respectively turn around.
  • the arm-shaped support member allows the chair frame to be lightweight and saves material.
  • the first driving device includes a first transmission rod and a first motor that drives the rotation of the first transmission rod, and two first rotation connecting members are respectively disposed at two ends of the first transmission rod;
  • the second driving device includes The second transmission rod and the second motor that drives the rotation of the second transmission rod have two second rotation connectors, which are respectively disposed at two ends of the second transmission rod.
  • the transmission rod structure is used to transmit the driving force of the motor to the rotary connecting member, which is advantageous for driving the rotary motion of the arm-shaped supporting member.
  • the external gear is disposed at both ends of the first transmission rod and the second transmission rod, and the internal gear is disposed on the first rotation connection member and the second rotation connection member.
  • the external gear is specifically arranged on the transmission rod, and the transmission rod is driven to rotate by the motor to realize efficient transmission.
  • the utility model further comprises a cushion member, a base member and a front seat connecting member, the seat cushion member is located on the upper side of the base member, the first support member is pivotally hinged to the cushion member; the second support member is respectively hinged with the base member and the cushion member, the chair The front connectors are hinged to the base member and the cushion member, respectively.
  • the first support member rotates relative to the seat cushion member
  • the second support member rotates relative to the base member or the cushion member.
  • the seat frame structure, the base member and the front seat connecting member are connected and matched with the first supporting member and the second supporting member, and the formed frame structure has few parts, light weight and high strength.
  • the base member has a base rail, and the first driving device and the second driving device are disposed on the base rail.
  • the base crossbar is used as a fixed reference point for the rotary motion, and the backrest and the lower leg bracket can be lifted and lowered relative to the base under the driving of the driving device.
  • the second swivel connection is fixedly coupled to the second arm near the base position.
  • the slewing drive structure is placed near the base to hide the driving device, so that the overall sofa is more beautiful.
  • the cushion member includes a fourth arm that is oppositely disposed and a support rail that connects the fourth arm, the first arm is hinged to the fourth arm, and the fourth arm and the support rail support the seat cushion for the user to sit thereon, Improve the comfort of the sofa.
  • first motor and the second motor are large torque motors.
  • the high torque motor provides sufficient driving force for the chair lift adjustment.
  • the present invention also provides a sofa having a backrest and a calf frame, the sofa frame, the first support member supporting the lower leg frame, and the second support member supporting the backrest.
  • the utility model solves the problems that the backrest of the sofa frame backrest and the footrest transmission structure are complicated, the assembly is difficult, and the reliability is poor.
  • Figure 1 is a schematic view of a prior art sofa chair frame
  • Figure 2 is a perspective view of a sofa chair frame according to a first embodiment of the present invention
  • Figure 3 is a side view of the sofa frame of the first embodiment of the present invention.
  • FIG. 4 is a schematic view showing the assembly of the first driving device of the sofa chair frame according to the first embodiment of the present invention
  • Fig. 5 is a schematic view showing the assembly of the second driving device of the sofa frame according to the first embodiment of the present invention.
  • Base rail 51 support rail 61
  • a sofa chair frame includes a support member that supports a backrest or a calf frame of a sofa; the sofa frame further includes a driving device that drives a rotary motion of the support member.
  • the calf frame plate for stretching or contracting the sofa is used, and the backrest of the rotary motion lifting sofa is adopted.
  • the rotary motion structure is significantly simplified and the reliability is enhanced.
  • the sofa frame 100 provides support for the backrest of the sofa, the seat cushion, and the calf support panel (not shown), which is the frame of the sofa.
  • the sofa calf support plate is used to place the calf when the user is lying on the sofa so that the calf can be stretched in a comfortable state.
  • the sofa backrest and the calf frame can be adjusted in angle.
  • the opening and folding of the calf support plate allows the calf support plate to be in use and stored.
  • the angle of the lower leg support plate can also be adjusted according to the user's preference.
  • the angle of the backrest is adjusted to allow the user to lie on the couch in a comfortable posture.
  • the sofa frame 100 includes a support member for supporting a backrest or a calf frame of the sofa.
  • the sofa frame 100 further includes a driving device for driving the support member to rotate, and the backrest or the calf frame of the sofa is also rotated.
  • the driving device can be powered by an external power source, and other pneumatic, hydraulic and other driving devices can be used, which are not limited herein.
  • the support member may also be part of a sofa back or a calf frame.
  • slewing motion means that the support member can be swung with respect to other members of the sofa frame to achieve swinging of the backrest or the calf frame. Different swing situations are set forth in detail in the examples below.
  • the sofa frame also has a swivel joint, and the support member and the drive device are driven by the swivel joint.
  • the rotary joint is connected at one end to a support member supporting the backrest or the calf support of the sofa, and the other end is connected to the driving device.
  • the swivel joint is provided with the internal gear 23, the drive means is provided with the external gear 24, and the internal gear 23 and the external gear 24 are engaged.
  • the meshing type of transmission prevents the support member from swinging back and forth.
  • the swivel connector is provided with an external gear
  • the driving device is provided with an internal gear
  • the internal gear is meshed with the external gear
  • the sofa frame backrest and the calf frame of the embodiment can be swung and swung.
  • Its support member includes a first support member and a second support member.
  • the first support member supports the hamstring plate and the second support member supports the backrest.
  • the first support member and the second support member are respectively swiveled around other structures of the seat frame, so that the backrest and the calf support plate both have the function of swinging up and down.
  • the drive means are two independent, comprising a first drive means 10 for driving the first support member to rotate and a second drive means 20 for driving the second support member to rotate.
  • the swivel joint also comprises a first swivel joint 11 and a second swivel joint 21.
  • the seat frame 100 is integrally connected by rods or arm members.
  • the first support member includes two first arms 30 that are disposed opposite each other. As shown in Fig. 2, the first arm 30 is an elongated iron piece structure, the two first arms 30 are substantially parallel, and the wider faces are in opposite positions.
  • the upper side supports the calf support plate and is fixed to the lower leg support plate.
  • the first support member and the second support member both adopt two opposite arm structures.
  • a single support structure or more than three arm structures may be employed.
  • the arm structure makes the chair frame lighter and saves material. Supporting members of other structures may not achieve the technical effect of light weight and less material of the seat frame. However, it should also be within the scope of the present invention.
  • the second support member includes two second arms 40 disposed oppositely.
  • the second arm 30 is also an elongated iron piece structure, and the two second arms 40 are substantially parallel and opposite. Tilt in the vertical direction with the wider faces in opposite positions. The left side is narrower and can be used as a face that is in contact with the backrest assembly and is fixed to the backrest.
  • the first swivel joint 11 has a flat structure and is divided into three parts.
  • the middle portion is elongated, and the front end connected thereto is also elongated, and the front end of the elongated strip has an obtuse angle with the middle portion, and the front end is substantially parallel to the longitudinal direction of the first arm 30.
  • the rear end of the long strip-shaped middle portion is a ring-shaped structure.
  • the ring-shaped structure has gears that are directly connected to the drive unit.
  • the second swivel joint 21 is also a flat structure and is divided into three parts.
  • the front end of the elongated strip has an obtuse angle with the middle portion, and the front end and the second arm 40 are fixedly connected by screws and are substantially parallel to the longitudinal direction of the second arm 40.
  • the back end is a ring type.
  • In the middle of the ring-shaped rear end is a gear that is directly connected to the drive unit. The gear structure will be described in detail later.
  • the first driving device 10 and the second driving device 20 independently drive the first arm 30 and the second arm 40 to rotate.
  • the first driving device 10 further includes a first transmission rod 12 and a first motor 13, as shown in FIG.
  • the first motor 13 drives the first transmission rod 12 to rotate.
  • the first motor 13 is a motor structure and is wrapped by a protective casing, and is supplied with an external power source, and the first motor 13 can realize forward rotation and reverse rotation.
  • the first transmission rod 12 has a four-sided or six-sided prismatic structure.
  • the first rotating connecting member 11 is disposed at two ends of the first driving rod 12, and the first rotating connecting member 11 and the first driving rod 12 are relatively fixed.
  • the specific fixing manner is not limited herein.
  • the two first swivel links 11 are each fixedly connected to the oppositely disposed first arm 30.
  • the second driving device 20 further includes a second transmission lever 22 and a second motor 23.
  • the second motor 23 drives the second transmission rod 22 to rotate.
  • the second motor 23 is a motor structure and is wrapped by a protective casing, which is powered by an external power source, and the second motor 23 can realize forward rotation and reverse rotation.
  • the second transmission rod 22 has a four-sided or six-sided prismatic structure.
  • the second rotating connecting member 21 is disposed at two ends of the second driving rod 22, and the second rotating connecting member 21 and the second driving rod 22 are relatively fixed.
  • the specific fixing manner is not limited herein.
  • the two second swivel links 21 are each fixedly connected to the oppositely disposed second arm 40.
  • the power switches of the first motor 13 and the second motor 23 can be respectively disposed at convenient operating positions of the sofa.
  • the first arm 30 and the second arm 40 which are respectively disposed oppositely, can be rotated synchronously through the transmission rod structure to ensure the lifting effect of the backrest and the calf frame.
  • the external gear 24 is disposed at both ends of the first transmission rod 12 and the second transmission rod 22, and the internal gear 25 is disposed at the first rotary joint 11 and the second rotary joint 21.
  • a convex cam structure is provided, and an outer gear 24 is disposed on the outer circumference of the cam structure.
  • An inner gear 25 is provided on the inner side surface of the rear end annular portion of the first swivel joint 11 and the second swivel joint 21.
  • the internal gear 25 may be disposed on the first swivel joint 11 and the second swivel joint 21, and the outer gear 24 may be disposed on the first drive rod 12 and the second transmission rod 22.
  • the other structure of the sofa chair frame 100 further includes a seat cushion member, a base member and a front seat connecting member, as shown in FIGS. 2-3.
  • the base member is typically placed on the ground as a support structure for the weight of the entire sofa.
  • the cushion member is used to set the seat cushion or a part of the seat cushion, and is located on the upper side of the base member, and the distance between the two can be adjusted to meet the needs of different users for the height of the sofa.
  • the first support member is pivotally hinged to the cushion member.
  • the first arm 30 of the first support member is hinged to one of the cushion members.
  • the calf frame is swung with respect to the seat cushion.
  • the second supporting members are respectively hinged with the base member and the cushion member, and the front seat connecting members are respectively hinged with the base member and the cushion member.
  • the four components are hinged to each other to form the main frame of the chair frame.
  • the second arm 40 of the second support member is pivotably swingable relative to the base member.
  • the front seat connector includes two oppositely disposed third arms 70.
  • the third arm 70 is also an elongated structure.
  • the base member includes a base rail 51 and a bottom arm 50, respectively two, and the two base rails 51 and the bottom arms 50 are joined to form the base member of the present embodiment.
  • the bottom arm 50 is disposed along the front-rear direction of the sofa, and the base rail 51 is located between the two bottom arms 50 to connect and fix the two bottom arms 50.
  • the bottom arm 50 is an L-shaped section profile, the profiled L-shaped horizontal portion is in contact with the ground, and the vertical portion is provided with a plurality of hinged holes for the second arm 40 or the third arm 70 to be hinged to the base 50. Thereby the second arm 40 is pivotally rotatable relative to the bottom arm 50.
  • the first driving device 10 and the second driving device 20 are disposed on the base rail (51). As shown in FIG. 2, the base rail 51 has a cylindrical structure, which can increase its strength.
  • the first swivel connector 11 and the second swivel connector 21 are fixed reference points respectively with the base rail 51, and are rotated relative to the fixed reference point.
  • the second swivel connector 21 is fixedly coupled to the position of the second arm 40 near the base 50.
  • the driving device 20 drives the pivotal movement of the second arm about the hinge point of the base.
  • the seat cushion member includes a fourth arm 60 and a support rail 61.
  • the fourth arm 60 is two, oppositely disposed. The same is a flat iron structure with the wider sides facing each other.
  • a support rail 61 is disposed between the two support rails 61, and the first arm 30 is hinged to the fourth arm 60. Thereby, the first support member, i.e., the two first arms 30, are rotated about the fourth arm 60 of the cushion member.
  • the seat cushion member, the base member and the front seat connecting member adopt two opposite arm-shaped structures, which are respectively oppositely disposed third arm 70, fourth arm 60, bottom arm 50 and the like.
  • a single structure or three or more arm structures may be used to form the members.
  • the arm structure makes the chair frame lighter and saves material.
  • Other structural components may not achieve the technical effect of light weight and low material of the seat frame.
  • first motor 13 and the second motor 23 are large torque motors.
  • the high torque motor provides sufficient driving force for the chair lift adjustment.
  • This embodiment also provides a sofa.
  • the sofa has a structure of a backrest, a calf support, a seat cushion, and the like (not shown).
  • the first support member 30 supports the calf support plate, and the second support member 40 supports the backrest.
  • the second arm 40 has two upper and lower sections, and the two ends of the lower section are fixedly connected with the fourth arm 70 and the bottom arm 50, respectively, and one end of the upper section and the fourth arm 70.
  • One end is hinged, and the second swivel joint 21 is fixedly coupled to the upper section and drives the upper section.
  • the second arm 40 is divided into upper and lower sections, the upper section can be driven to rotate by the second rotary joint 21, and the second rotary joint 21 supports the backrest of the sofa.
  • the upper section of the second arm 40 serves as a second support member that is pivotally moved relative to the third arm 60, i.e., the seat cushion.
  • connection between the fourth arm 70, the bottom arm 50, and the third arm 60 is relatively fixed.
  • the backrest in the case where the seat cushion is not raised and lowered, the backrest can also adjust the angle so that the person adjusts the backrest to a comfortable position.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

一种沙发椅架(100)，包括支承构件和驱动支承构件回转运动的驱动装置。采用回转运动伸展或者收缩沙发的小腿架板，采用回转运动升降沙发的靠背，相对于现有技术中直线运动推杆的结构，回转运动结构得到显著的简化，可靠性也增强。

Description

一种沙发椅架及沙发 技术领域
本发明涉及家具技术领域，尤其涉及一种沙发椅架及沙发。
背景技术
现有的沙发，通过驱动调节沙发靠背与底座、小腿搁板与底座的角度，可以使人们坐于沙发时背部和小腿都处于最为舒适的位置。专利号US8608240B2中，如图1所示，第一促进装置028驱使横向驱动件038直线运动使靠背016朝背靠趟卧方向旋转趟卧，促动装置位移件052连接促动装置驱动件050直线运动使搁脚打开或收纳返回。由于该现有技术中，电机驱动推杆结构直线运动将靠背和搁脚推开，直线运动的推杆结构复杂，成本高；另一方面，由于铁片数量繁多，组装麻烦，在铰接推杆机构出现故障时，复杂的铁片结构将使椅架难以得到维修，可靠性差。
发明内容
基于此，本发明的目的在于解决沙发椅架靠背和搁脚传动结构复杂，组装困难，可靠性差的问题。
为解决上述技术问题，本发明采取的技术方案是：一种沙发椅架，包括支承构件，支承构件支承沙发的靠背或小腿架板；沙发椅架还包括驱动支承构件回转运动的驱动装置。
本发明中采用回转运动伸展或者收缩沙发的小腿架板，采用回转运动升降沙发的靠背，相对于现有技术中直线运动推杆的结构，回转运动结构得到显著的简化，可靠性也增强。
进一步地，沙发椅架还具有回转连接件，回转连接件一端连接在支承结构，另一端连接驱动装置。由于回转连接件将驱动装置和支承 结构连接起来，驱动装置带动回转连接件转动的同时，支承结构也被转动，即回转运动，从而实现靠背或者小腿架板升降打开。回转运动机理下的椅架结构，仅需要单独的回转连接件，实现驱动装置带动支承构件回转，构件制造的成本是大大降低的，连接部件变少，可靠性也得到提高。
进一步地，回转连接件具有内齿轮或外齿轮，驱动装置相应具有外齿轮或内齿轮，内齿轮和外齿轮啮合。内外齿轮啮合连接传动，有效地实现椅架回转，并定位在调整的角度。
进一步地，支承构件包括第一支承构件和第二支承构件，第一支承构件支承小腿架板，第二支撑构件支承靠背，驱动装置包括驱动第一支承构件回转的第一驱动装置和驱动第二支承构件回转的第二驱动装置。两个驱动装置分别驱动靠背和小腿架板，相对于现有技术中的单电机驱动结构也进一步省略了连杆传动机构。
进一步地，回转连接件包括第一回转连接件和第二回转连接件，第一支承构件包括相对设置、支承小腿架板的至少两个第一臂，第二支承构件包括相对设置、支承靠背的至少两个第二臂；第一回转连接件与第一臂固定连接；第二回转连接件与第二臂固定连接；第一驱动装置和第二驱动装置分别独立驱动第一臂和第二臂回转。臂状结构的支承构件可以让椅架轻质化，能节省材料。
进一步地，第一驱动装置包括第一传动杆和带动第一传动杆回转的第一电机，第一回转连接件为两个，分别设置在第一传动杆的两端；第二驱动装置包括第二传动杆和带动第二传动杆旋转的第二电机，第二回转连接件为两个，分别设置在第二传动杆的两端。采用传动杆结构将电机的驱动力传递至转动连接件，有利于驱动臂状支承构件的回转运动。
进一步地，外齿轮设置于第一传动杆和第二传动杆两端，内齿轮 设置于第一回转连接件与第二回转连接件。外齿轮具体设置在传动杆上，传动杆被电机驱动带动回转，可实现高效传动。
进一步地，还包括坐垫构件、底座构件和椅前连接件，坐垫构件位于底座构件上侧，第一支承构件可回转地铰接于坐垫构件；第二支承构件分别与底座构件、坐垫构件铰接，椅前连接件分别与底座构件、坐垫构件铰接。本发明中，第一支撑构件相对于坐垫构件回转运动，第二支撑构件相对于底座构件或者坐垫构件回转运动。通过坐垫构件、底座构件、椅前连接件与第一支承构件、第二支承构件连接配合，形成的椅架结构，零部件少，重量轻，强度高。
进一步地，底座构件具有底座横杆，第一驱动装置和第二驱动装置设置于底座横杆上。以底座横杆作为回转运动的固定参照点，在驱动装置驱动下，靠背和小腿板架可以相对于底座升降。
进一步地，第二回转连接件固定连接在第二臂靠近底座位置。将回转驱动结构设置在底座附近，将驱动装置隐藏，使沙发整体更美观。
进一步地，坐垫构件包括相对设置的第四臂和连接第四臂的支撑横杆，第一臂铰接于第四臂，第四臂和支撑横杆一起支撑坐垫，用于用户坐于其上，提高沙发舒适性。
进一步地，第一电机和第二电机为大扭力马达。大扭力马达可以为椅架升降调节提供足够的驱动力。
本发明还提供一种沙发，具有靠背和小腿架板，上述沙发椅架，第一支承构件支撑小腿架板，第二支承构件支撑靠背。解决了沙发椅架靠背和搁脚传动结构复杂，组装困难，可靠性差的问题。
附图说明
图1是现有技术沙发椅架示意图；
图2是本发明第一实施例沙发椅架立体图；
图3为本发明第一实施例沙发椅架侧视图；
图4为本发明第一实施例沙发椅架第一驱动装置装配示意图；
图5是本发明第一实施例沙发椅架第二驱动装置装配示意图。
其中，附图标记含义如下：
椅架100
第一驱动装置10
第一回转连接件11 第一传动杆12 第一电机13
第二驱动装置20
第二回转连接件21 第二传动杆22 第二电机23
内齿轮25 外齿轮24
第一臂30 第二臂40 第三臂70 第四臂60 底臂50
底座横杆51 支撑横杆61
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。
一种沙发椅架，包括支承构件，支承构件支承沙发的靠背或小腿架板；沙发椅架还包括驱动支承构件回转运动的驱动装置。
本发明中采用回转运动伸展或者收缩沙发的小腿架板，采用回转运动升降沙发的靠背，相对于现有技术中直线运动推杆的结构，回转运动结构得到显著的简化，可靠性也增强。
为使本发明的上述目的、特征和优点能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
第一实施例
如图2所示的沙发椅架100立体图，沙发椅架100为沙发的靠背、坐垫、小腿架板(未示出)提供支撑，是沙发的框架。沙发小腿架板用于在用户平趟于沙发时，放置小腿，使小腿可伸展处于舒适的状态。其中沙发靠背和小腿架板是可以调整角度的。小腿架板的打开和折叠可以使小腿架板处于使用和收纳状态，使用状态下，还可以根据用户的喜好调节小腿架板的角度。靠背的角度调整以使用户以舒适的姿态的躺在沙发上。
为了实现上述的效果，沙发椅架100包括有支承构件，支承构件用于支承沙发的靠背或小腿架板。在本实施例中，沙发椅架100还包括驱动装置，驱动支承构件回转运动，沙发的靠背或小腿架板也随之回转。
该驱动装置可以通过外部电源供电，也可采用其它的气动、液压等驱动装置，在此不再限制。
在其它实施例中，支承构件也可以属于沙发靠背或小腿架板的组成部分。
需要指出的是，本发明所称“回转运动”，是指支承构件能够相对于沙发椅架的其它构件回转摆动，以实现靠背或小腿架板的摆动。不同的回转情况在下面的实施例中将详细陈述。
在本实施例中，沙发椅架还具有回转连接件，支承构件与驱动装置之间通过回转连接件传动。回转连接件一端连接在支承沙发的靠背或小腿架板的支承构件，另一端连接到驱动装置。
在本实施例中，如图5所示，回转连接件设置内齿轮23，驱动装置设置外齿轮24，内齿轮23和外齿轮24啮合。啮合方式的传动防止支承构件摆动回缩。
在其它实施例中，回转连接件设置外齿轮，驱动装置设置内齿轮， 内齿轮与外齿轮啮合，也可以达到相同的技术效果。
本实施例的沙发椅架靠背和小腿架板都可以摆动回转。其支承构件包括第一支承构件和第二支承构件。第一支承构件支承小腿架板，第二支撑构件支承靠背。第一支承构件和第二支撑构件分别绕椅架的其它结构回转，使靠背和小腿架板都具有回转升降的功能。驱动装置为独立的两个，包括驱动第一支承构件回转的第一驱动装置10和驱动第二支承构件回转的第二驱动装置20。
相应地，回转连接件也包括第一回转连接件11和第二回转连接件21。本实施例中，椅架100整体采用杆状或者臂状零件连接。第一支承构件包括相对设置的两个第一臂30。如图2所示，该第一臂30为长条形的铁片结构，两个第一臂30基本保持平行，较宽的面处于相对位置。上侧面可支承小腿架板并与小腿架板固定。
本实施例中，第一支承构件和第二支承构件都采用两个相对设置的臂状结构。在其它实施例中，也可以采用单一的支承结构，或者是3个以上的臂状结构。采用臂状结构可以使椅架质量轻，节省材料。其它结构的支承构件可能无法达到椅架质量轻、材料少的技术效果。但也应该在本发明的保护范围内。
第二支承构件包括相对设置的两个第二臂40，类似地，如图2所示，该第二臂30也为长条形的铁片结构，两个第二臂40基本保持平行，相对竖直方向倾斜，较宽的面处于相对位置。左侧面较窄，可以作为与靠背组件接触的面，与靠背相固定住。
如图4所示，第一回转连接件11为扁平状结构，分为三个部分。中间部分为长条形，与其连接的前端也为长条形，该长条形前端与中部存在钝角角度，该前端与第一臂30长度方向基本平行。并且，具有螺孔，该前端通过螺丝固定在第一臂30上。长条形中部的后端是圆环型结构。圆环型结构中具有齿轮，与驱动装置直接连接。
如图5所示，第二回转连接件21也为扁平状结构，分为三个部分。长条形的前端与中部存在钝角角度，前端与第二臂40通过螺丝固定连接，并与第二臂40的长度方向保持基本平行。后端为圆环型。圆环型后端中间是齿轮，与驱动装置直接连接。齿轮结构将在后面详细说明。
从以上也可以看出，第一驱动装置10和第二驱动装置20分别独立驱动第一臂30和第二臂40回转。
进一步地，第一驱动装置10还包括第一传动杆12和第一电机13，如图4所示。第一电机13带动第一传动杆12旋转。第一电机13为马达结构，并由保护壳体包裹，外部电源供电，该第一电机13可实现正转和反转。
第一传动杆12为四面或六面等棱状结构。第一回转连接件11为两个，分别设置在第一传动杆12的两端，第一回转连接件11与第一传动杆12是相对固定的，具体固定方式在此不做限制。两个第一回转连接件11各自与相对设置的第一臂30固定连接。
类似地，如图5所示，第二驱动装置20还包括第二传动杆22和第二电机23。第二电机23带动第二传动杆22旋转。第二电机23为马达结构，并由保护壳体包裹，外部电源供电，该第二电机23可实现正转和反转。
第二传动杆22为四面或六面等棱状结构。第二回转连接件21为两个，分别设置在第二传动杆22的两端，第二回转连接件21与第二传动杆22是相对固定的，具体固定方式在此不做限制。两个第二回转连接件21各自与相对设置的第二臂40固定连接。
第一电机13和第二电机23的电源开关可分别设置在沙发的方便操作位置。
分别相对设置的第一臂30、第二臂40通过传动杆结构，可以同步转动，保证靠背和小腿架板升降效果。
进一步地，外齿轮24设置于第一传动杆12和第二传动杆22两端，内齿轮25设置于第一回转连接件11与第二回转连接件21。在第一传动杆12和第二传动杆22的两端处，都设置有凸出的凸轮结构，凸轮结构的外周设置外齿轮24。在第一回转连接件11和第二回转连接件21的后端圆环部分的内侧表面设置内齿轮25。
在其他实施例中，内齿轮25可设置在第一回转连接件11和第二回转连接件21上，外齿轮24可设置在第一传动杆12和第二传动杆22上。
在本实施例中，沙发椅架100的其它结构还包括坐垫构件、底座构件和椅前连接件，如图2-3所示。底座构件一般放置在地面上，作为整个沙发重量的支撑结构。坐垫构件用于设置坐垫或者属于坐垫的一部分，位于底座构件上侧，两者之间的距离可以调节，以满足不同用户对沙发高矮的需求。
第一支撑构件可回转地铰接于坐垫构件。在本实施例中，第一支承构件的第一臂30铰接到坐垫构件的一处。从而，小腿架板是相对于坐垫回转摆动的。第二支承构件分别与底座构件、坐垫构件铰接，椅前连接件分别与底座构件、坐垫构件铰接。四个部件的相互铰接，形成椅架最主要的框架。其中，第二支撑构件的第二臂40相对于底座构件是可回转摆动的。
具体地，椅前连接件包括两个相对设置的第三臂70。第三臂70亦为长条形结构。底座构件包括底座横杆51和底臂50，分别为两个，两条底座横杆51和底臂50连接形成本实施例的底座构件。底臂50沿沙发的前后方向设置，底座横杆51位于两个底臂50之间，将两个底臂50连接固定。底臂50为L型截面型材，该型材L型水平部分 与地面接触，竖直部分开设有多个铰接孔，供第二臂40或第三臂70铰接在底座50上。从而第二臂40相对于底臂50是可回转摆动的。
第一驱动装置10和第二驱动装置20设置于底座横杆(51)上。如图2所示，该底座横杆51为柱形结构，可以增加其强度。第一回转连接件11和第二回转连接件21分别以底座横杆51为固定参照点，相对于该固定参照点是转动的。
进一步地，如图5所示，第二回转连接件21固定连接在第二臂40靠近底座50位置。驱动装置20驱动第二臂绕与底座的铰接点回转运动。
本实施例中，坐垫构件包括第四臂60和支撑横杆61。第四臂60为两个，相对设置。同样地为扁平状铁片结构，较宽的侧面相对设置。两个支撑横杆61之间设置支撑横杆61，第一臂30铰接于第四臂60上。由此，第一支承构件即两个第一臂30是绕坐垫构件的第四臂60回转的。
本实施例中，坐垫构件、底座构件以及椅前连接件都采用两个相对设置的臂状结构，分别为相对设置的第三臂70、第四臂60、底臂50等等。在其它实施例中，也可以采用单一的结构，或者是3个以上的臂状结构形成这些构件。采用臂状结构可以使椅架质量轻，节省材料。其它结构的构件可能无法达到椅架质量轻、材料少的技术效果。但也应该在本发明的保护范围内。
进一步地，第一电机13和第二电机23为大扭力马达。大扭力马达可以为椅架升降调节提供足够的驱动力。
本实施例还提供了一种沙发。该沙发具有靠背、小腿架板、坐垫等结构(未示出)。第一支承构件30支撑小腿架板，第二支承构件40支撑靠背。通过上述的椅架结构，小腿架板、靠背的角度以及坐垫高度调整被有效地实现，确保了本发明沙发的舒适度。
第二实施例
与第一实施例不同的是，该第二实施例中，第二臂40具有上下两段，下段的两端分别与第四臂70、底臂50固定连接，上段的一端与第四臂70一端铰接，第二回转连接件21固定连接在上段，并驱动该上段。该第二臂40分为上下两段，上段可以被第二回转连接件21驱动转动，第二回转连接件21支撑起沙发的靠背。第二臂40的上段作为第二支撑构件，其相对于第三臂60即坐垫回转运动。
另外，第四臂70、底臂50、第三臂60之间的连接是相对固定的。在本实施例椅架形成的沙发中，坐垫不升降的情况下，靠背也可以调节角度，使人们将靠背调节到舒适的位置。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。

Claims (13)

  1. 一种沙发椅架(100)，其特征在于：包括支承构件，所述支承构件支承所述沙发的靠背或小腿架板；所述沙发椅架(100)还包括驱动所述支承构件回转运动的驱动装置。
  2. 如权利要求1所述的沙发椅架(100)，其特征在于：所述沙发椅架(100)还具有回转连接件，所述回转连接件一端连接在所述支承结件，另一端连接所述驱动装置。
  3. 如权利要求2所述的沙发椅架(100)，其特征在于：所述回转连接件具有内齿轮(25)或外齿轮，所述驱动装置相应具有外齿轮(24)或内齿轮，所述内齿轮(25)和所述外齿轮(24)啮合。
  4. 如权利要求1-3中任一项所述的沙发椅架(100)，其特征在于：所述支承构件包括第一支承构件(30)和第二支承构件(40)，所述第一支承构件(30)支承所述小腿架板，所述第二支撑构件(40)支承所述靠背，所述驱动装置包括驱动所述第一支承构件(30)回转的第一驱动装置(10)和驱动所述第二支承构件(40)回转的第二驱动装置(20)。
  5. 如权利要求4所述的沙发椅架(100)，其特征在于：所述回转连接件包括第一回转连接件(11)和第二回转连接件(21)，
    第一支承构件包括相对设置、支承小腿架板的至少两个第一臂(30)，第二支承构件包括相对设置、支承所述靠背的至少两个第二臂(40)；
    所述第一回转连接件(11)与所述第一臂(30)固定连接；
    所述第二回转动连接件(21)与所述第二臂(40)固定连接；
    所述第一驱动装置(10)和所述第二驱动装置(20)分别独立驱动所述第一臂(30)和所述第二臂(40)回转。
  6. 如权利要求5所述的沙发椅架(100)，其特征在于：所述第一驱动装置(10)包括第一传动杆(12)和带动所述第一传动杆(12)回转的第一电机(13)，所述第一回转连接件(11)为两个，分别设置在所述第一传动杆(12)的两端；所述第二驱动装置(20)包括第二传动杆(22)和带动所述第二传动杆(22)旋转的第二电机(23)，所述第二回转连接件(21)为两个，分别设置在所述第二传动杆(22)的两端。
  7. 如权利要求6所述的沙发椅架(100)，其特征在于：所述外齿轮(24)设置于所述第一传动杆(12)和第二传动杆(22)两端，所述内齿轮(23)设置于第一回转连接件(11)与所述第二回转连接件(21)。
  8. 如权利要求5所述的沙发椅架(100)，其特征在于：还包括坐垫构件、底座构件和椅前连接件，所述坐垫构件位于所述底座构件上侧，所述第一支撑构件可回转地铰接于所述坐垫构件；所述第二支承构件分别与所述底座构件、所述坐垫构件铰接，所述椅前连接件分别与所述底座构件、所述坐垫构件铰接。
  9. 如权利要求8所述的沙发椅架(100)，其特征在于：所述底座构件具有底座横杆(51)，所述第一驱动装置(10)和第二驱动装置(20)设置于所述底座横杆(51)上。
  10. 如权利要求8或9所述的沙发椅架(100)，其特征在于：所述第二回转连接件(21)固定连接在所述第二臂(40)靠近所述底座位置。
  11. 如权利要求8或9所述的沙发椅架(100)，其特征在于：所述坐垫构件包括相对设置的第四臂(60)和连接第四臂(60)的支撑横杆(61)，所述第一臂(30)铰接于所述第四臂(60)。
  12. 如权利要求6-9中任一项所述的沙发椅架(100)，其特征在 于：所述第一电机(13)和第二电机(23)为大扭力马达。
  13. 一种沙发，具有靠背和小腿架板，其特征在于：具有如权利要求4-12中任一项所述的沙发椅架(100)，所述第一支承构件(30)支撑所述小腿架板，所述第二支承构件(40)支撑所述靠背。
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