TWM511797U - Chair having interlocked seatback and sitting part - Google Patents

Description

Chair with interlocking seat back and seat

The present invention relates to a chair, in particular to a change in the seat posture and the position of the seat frame by changing the seat position, without any manual adjustment action, which is quite convenient to use. At the same time, the structural design is simple and easy to assemble, which can reduce the production cost and improve the economic structure of the innovative structure of the chair.

At present, the chair piece with adjustable seat back is generally disposed on the two sides of the chair back frame which can be tilted and adjusted, and the two armrests are respectively connected with an armrest, and the two armrests are respectively disposed between the two sides of the support frame of the chair. The chair back tilting mechanism is adjusted, and the two sides of the supporting frame are respectively pivotally connected to the two sides of the seat frame, so that when the seat back tilting mechanism is released from the jam state, the armrest can slide back and forth, and the armrest The forward and backward sliding action will interlock the back frame and cause the tilting angle of the back frame to change. That is, by adjusting the operation of the seat back tilting mechanism, the angle between the seat back and the seat portion is reduced to become a seat form, or the angle between the seat back and the seat portion is increased, and it is in the form of a reclining chair.

The adjustment of the back angle of the chair is an adjustment of the seat back tilting machine through the positioning pins provided on the bottom of the armrest and the fixing pins on the support frame. The realization of the structure makes the tilt angle of the back of the chair belong to a segmented adjustment mode, which cannot meet the different needs of each user.

Another example is the new patent of the adjusting device for the seat of the No. M447725 of China, wherein the adjusting device comprises a seat back, a seat, a back frame, a bracket, and a sliding module; the seat further includes a seat cushion And a chassis; the back frame is connected to the back of the seat back, and a bent bar is respectively connected to both sides of the seat cushion at both ends thereof, and an arc-shaped sliding groove is further opened in the middle of the back frame in the direction of the seat sitting; One end of the bracket is connected to the chassis of the seat, and the other end is provided with a guide rail slidingly connected to the sliding slot of the back frame; the sliding module is coupled between the seat cushion and the chassis, and the seat cushion is slidable relative to the chassis. When the user changes the sitting posture, the seat cushion is dragged with respect to the chassis by the strength of the hips, and the backrest is used to link the back of the chair and the elevation angle and the position change are changed to achieve the purpose of changing the tilt angle of the seat back.

Another example is the new patent case of China's certificate number No. M360623, which is a horizontal type easy chair with a bipod. The bipod is provided with a linked back frame, a linkage frame and a bottom frame. The stand has The front and rear legs, the two sides of the middle portion of the back frame are pivotally disposed on the upper side of the foot after the bipod, and the two sides of the top end of the interlocking frame are pivoted on the upper side of the foot of the bipod, and the two sides of the rear end of the bottom frame are pivoted at the bottom of the back frame. The two sides of the front edge of the middle portion of the bottom frame are pivoted together with the bottom end of the linkage frame, and a flexible seat belt is disposed between the legs, thereby directly adjusting the seat when the user posture changes. Sitting in the form of lying.

However, whether it is the new patent of the adjustment device of the seat of No. M447725 or the new patent case of the horizontally-mounted easy chair of No. M360623, the composition of the structure is still However, it is more complicated, so the production cost is higher and it is not economical.

Nowadays, the present creator has developed the creation in view of the shortcomings in the actual implementation and use of the above prior art.

In view of the lack of use in the prior art described above, the present invention particularly provides a more novel "chair with a hinged seat back and a seat", as long as the user changes the sitting position, the seat back and the seat portion can be linked separately. The change of elevation angle and position produces good support for the user's lower back; especially the overall structure of the creation is simple and easy to assemble, which can effectively reduce the production cost and meet the economic benefits, and this is the main purpose of the creation.

The main purpose and effect of the above-mentioned creation are achieved by the following specific technical means: a chair with a linkage back and a seat, which comprises a two-sided frame, a back frame and a seat frame, two At least two connecting rods are connected between the side frames, and the seat frame can be slidably displaced on the surface of at least one of the connecting rods and supported by the connecting rod, and the two sides of the back frame are respectively The side frame is pivotally connected, and the end of the seat back frame is provided with a slot. The end of the seat frame is provided with a tab, so that the insert passes through the slot and is pivotally connected to each other.

a chair having a linked seat back and a seat portion as described above, wherein the seat frame is provided with a smoothing at a distance corresponding to a sliding displacement on a surface of the connecting rod Hard sliding auxiliary belt.

As described above, the chair having the interlocking seat back and the seat portion, wherein the sliding auxiliary belt is made of a hard plastic.

The chair having the interlocking seat back and the seat portion as described above, wherein the distance from the pivot joint to the rear edge of the groove bottom is smaller than the insert from the pivot joint to the insert The distance from the upper end corner of the end of the sheet is limited by the end edge of the end of the slot.

The advantage of this creation is that the user can directly change the seat back frame and the seat frame to change the elevation angle and position by changing the riding posture, so that the user's waist back can obtain good support without having to do it again. Any manual adjustment is quite convenient to use; and the overall structural design is simple and easy to assemble, which can effectively reduce production costs and improve economic efficiency.

(1) ‧‧‧ side frame

(11)‧‧‧ Connecting rod

(2) ‧‧‧back frame

(20) End of ‧‧‧

(21) ‧‧‧through slots

(22) ‧‧‧ trailing edge

(3) ‧ ‧ seat frame

(30) End of ‧‧‧

(31)‧‧‧ Inserts

(32) ‧‧‧End end angle

(4) ‧‧‧ cushion body

(5) ‧‧‧Sliding auxiliary belt

The first picture: the three-dimensional appearance of the chair with the interlocking chair back and the seat

The second picture: the relationship between the slot and the insert of the chair with the interlocking chair back and the seat part

The third picture: This is a schematic diagram of the chair with the interlocking seat back and the seat part installed on the seat back frame and the seat frame.

The fourth picture: the state of the creation of the chair with the interlocking chair back and the seat part when the user is in a sitting position

Figure 5: This is a schematic diagram of the state of the chair with the interlocking back and the seat when the user is in a reclining position.

In order to make the technical content, creative purpose and the effect achieved by this creation more complete and clear, please elaborate below, and please refer to the illustrated drawings and drawings: please refer to the first As shown in the second figure, the schematic diagram of the three-dimensional appearance of the chair with the interlocking seat back and the seat part and the relationship between the slot and the insert are respectively disclosed.

The chair of the present invention comprises two side frames (1), a back frame (2) and a seat frame (3), and the connecting rods (11) are respectively arranged between the two side frames (1) in the front, middle and rear sections. In connection, the seat frame (3) can be slidably displaced on the surface of the connecting rod (11) located at the front stage, and supported by the connecting rod (11) located at the front stage, and the two sides of the back frame (2) are positioned The two sides of the side frame (1) are pivotally connected, the end (20) of the seat back frame (2) is further provided with a slot (21), and the end (30) of the seat frame (3) is further provided with a slot. a piece (31), the insertion piece (31) is inserted into the through groove (21) and pivoted to each other; the third figure shows the mounting body on the seat back frame (2) and the seat frame (3) (4) for the user Suitably; thus, when the center of gravity of the force applied to the seat frame (3) is changed, the traction back frame (2) can be linked to pivot with the side frame (1) as a pivot The angle of inclination and position of the seat back frame (2) and the seat frame (3).

That is, the user only needs to change the riding posture to change the center of gravity, and the seat frame (3) can directly interlock the back frame (2), so that the seat back frame (2) pivots with the pivotal connection with the side frame (1). Further, the seat back frame (2) and the seat frame (3) are changed in elevation angle and position. As shown in the fourth figure, the user is in a sitting posture, and the angle between the back frame (2) and the seat frame (3) is small, and the fifth figure shows that the user is lying down. In this case, the angle between the back frame (2) and the seat frame (3) varies greatly, regardless of the change in the elevation angle and position between the back frame (2) and the seat frame (3). The user's waist and back can be well supported due to changes in the center of gravity of the user's sitting position, and no manual adjustment is required, which is quite convenient to use. At the same time, the overall structure of the creation is simple and easy to assemble. Can effectively reduce production costs and improve economic efficiency.

Preferably, the seat frame (3) is provided with a smooth and rigid sliding auxiliary belt (5) at a distance corresponding to the sliding displacement on the surface of the connecting rod (11) corresponding to the front stage, and the sliding auxiliary belt (5) is more It is better to use a hard plastic to reduce the friction between the seat frame (3) and the connecting rod (11), so that the sliding displacement of the seat frame (3) is smoother.

More preferably, the slot (21) of the back frame (2) is from the pivot axis O to The distance L1 of the rear edge (22) of the groove (21) groove bottom is smaller than the distance L2 of the insert piece (31) of the seat frame (3) from the pivot point axis O to the upper end angle (32) of the end of the insert piece (31). Therefore, the upper end corner of the end of the insert piece (31) can be resisted by the rear edge of the groove bottom of the groove (21), so as to limit the inclination angle of the seat back frame (2).

The above are only some of the examples of this creation, and are not intended to limit the creation of this creation. It should be included in the scope of this patent, based on the creative spirit and characteristics of this creation.

In summary, the present embodiment can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has fully complied with the provisions of the Patent Law. And the request, the application for a new type of patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

(1) ‧‧‧ side frame

(11)‧‧‧ Connecting rod

(2) ‧‧‧back frame

(21) ‧‧‧through slots

(3) ‧ ‧ seat frame

(31)‧‧‧ Inserts

(5) ‧‧‧Sliding auxiliary belt

Claims (4)

A chair with a linkage back and a seat, comprising two side frames, a back frame and a seat frame, wherein the side frames are connected by at least two connecting rods, and the seat frame can Slide-displaced on at least one of the connecting rod surfaces and supported by the connecting rod, the two sides of the back frame are pivotally connected to one of the side frames, and the end of the back frame is provided with a slot. A tab is disposed at an end of the seat frame, and the insert is passed through the through slot and pivoted to each other. The chair having the interlocking seat back and the seat portion according to claim 1, wherein the seat frame is provided with a smooth and rigid distance at a sliding displacement corresponding to the surface of the connecting rod. Sliding auxiliary belt. The chair with a linked seat back and a seat as described in claim 2, wherein the sliding auxiliary belt is made of hard plastic. The chair having the interlocking seat back and the seat portion according to claim 1, 2 or 3, wherein the distance from the pivot joint to the rear edge of the groove bottom is smaller than the distance The insert has a distance from the pivot joint to the upper end corner of the insert end, and the upper end corner of the insert is restrained by the bottom trailing edge of the slot.