CN107997431A - A kind of adjustable chair frame component of sitting posture - Google Patents

Abstract

The invention relates to a chair frame assembly with adjustable sitting posture. It includes a chair frame, a seat board and a backrest. The chair frame includes a seat board connection part and a backrest connection part; The structural arrangement of the present invention enables the present invention to control the inclination of the backrest through the sliding of the seat plate on the seat plate connecting portion; it also enables the user to control the ratio of the weight of the upper body to the seat back to control the seat back. The degree of inclination is used to adjust the posture of sitting or lying; it also enables the user to control the inclination of the chair back by controlling the ratio of the weight of the upper body to the back of the chair, and at the same time cooperate with the buttocks to control the sliding of the seat board on the connecting part of the seat board. Comprehensively adjust the posture of sitting or lying down, and truly realize the adjustment effect of moving with you.

Description

Chair frame assembly with adjustable sitting posture

technical field

The invention relates to the technical field of furniture, in particular to a chair frame assembly with adjustable sitting posture.

Background technique

Some existing chairs with reclining and reclining functions are not easy to operate on the one hand and comfortable enough on the other hand when changing from a seat to a reclining chair.

For example, a Chinese invention application with the application number 201610714615.X discloses a chair, including a support seat, a backrest, a connecting frame and a seat plate for the user to sit on. The backrest is erected on the support seat through connection, and the backrest includes The back contact section, the waist contact section for supporting the waist, and the transition section connecting the back contact section and the waist contact section, the preset position in the transition section is rotatably connected to the connecting frame through a rotating mechanism; under the action of external force, the backrest It can rotate clockwise from the preset state around the rotating mechanism; after the external force disappears, the backrest returns to the preset state. Although the chair can rotate, it is easy to poke the user's back during rotation to make it uncomfortable, and the user cannot use it as a reclining chair.

Contents of the invention

The present invention aims to solve the above problems, thereby providing a chair frame assembly with adjustable sitting posture.

The technical solution adopted by the present invention to solve the problems of the technologies described above is as follows:

A chair frame assembly with adjustable sitting posture, including a chair frame, a seat board and a backrest, the chair frame includes a seat board connecting portion and a backrest connecting portion; the seat board is hinged to the backrest, and the backrest is connected to the backrest The connecting part is hinged, and the seat board is slidably connected with the connecting part of the seat board, so that the user can control the inclination of the backrest through the sliding of the seat board on the connecting part of the seat board; it also makes the user It is possible to adjust the sitting posture by loading the gravity of the upper body on the back of the chair to change the inclination of the chair back in the sitting position; it also enables the user to adjust the tilt of the back of the chair by loading the gravity of the upper body on the back of the chair in the sitting position. The degree of inclination changes, and at the same time cooperates with the hip to control the sliding of the seat board on the seat board connection part to comprehensively adjust the sitting posture.

In the above technical solution of the present invention, when the user is adjusting the sitting posture, on the one hand, the force generated by the user’s back against the backrest makes the backrest rotate based on the hinged connection between the backrest and the backrest connection. The force required for this rotation is relatively small, usually It only needs the user to transfer part of the weight of the upper body to the backrest, and no additional force is required; at the same time, when the backrest rotates, it will drive the seat plate hinged with the backrest to slide relative to the connecting part of the seat plate; On the other hand, while the posture is being adjusted, the user can use the effect of the buttocks on the seat plate to cause the seat plate to slide relative to the seat plate connection part, and this slip will also act positively on the hinge of the backrest based on the backrest and the backrest connection part And the rotation occurs. It can be seen that the present invention can use the simultaneous action of the back and the buttocks to adjust the sitting posture, and the simultaneous adjustment of the back and the buttocks has the effect of mutual assistance, which makes the adjustment of the present invention very labor-saving and very convenient.

As a preference of the above technical solution, the seat plate and the seat plate connecting portion are connected through a first sliding mechanism, and the first sliding mechanism includes a fixed sliding seat arranged on the seat plate connecting portion, a The sliding block at the bottom of the seat plate; the sliding fit connection between the fixed sliding seat and the sliding block.

As a preference of the above technical solution, the fixed sliding seat is provided with a first sliding slot, the sliding block is provided with a first sliding head, and the first sliding head is slidably fixed in the first sliding slot.

As a preference of the above technical solution, the first chute is an inclined surface or a curved surface.

As a preference of the above technical solution, the backrest includes a backrest body with a vacant area and a backrest slider smaller than the vacant area, the backrest body and the backrest slider are connected by a second sliding mechanism, and the second sliding mechanism It includes second sliding grooves arranged on two opposite inner sides of the empty area and second sliders arranged on both outer sides of the backrest slider, and the second sliding heads are slidably fixed on the second sliding grooves Inside.

As a preference of the above technical solution, the seat board and the backrest are connected through a first hinge mechanism, and the first hinge mechanism includes a first hinge seat arranged at the bottom of the seat board and a first hinge seat arranged at the lower part of the backrest. The first rotating part; the first hinged seat forms a fixed angle α with the seat plate, and the first rotating part forms a fixed angle β with the backrest, wherein, 90°<α<180°, 90 °<β<180°.

As a preference of the above technical solution, the first hinge base and the first rotating part form a hinge angle γ, 90°≤γ<180°.

As a preference of the above technical solution, the backrest and the backrest connecting part are connected through a second hinge mechanism, and the second hinge mechanism includes a second hinge seat arranged on the backrest connecting part and a second hinge seat arranged on the back of the backrest. the second rotating part.

As a preference of the above-mentioned technical solution, a locking mechanism is provided between the fixed sliding seat and the sliding block, and the locking mechanism includes a pin linked with the sliding block and an Corresponding pinholes for the multi-level arrangement.

As a preference of the above technical solution, it also includes the control mechanism of the bolt, the control mechanism of the bolt includes a pin cylinder for accommodating the bolt, a spring arranged in the pin cylinder for returning the bolt, Control the pull wire of the bolt; when the pull wire is pulled, the bolt is pulled out from the pin hole, so that the sliding block can slide relative to the fixed sliding seat; when the pull wire is not pulled, slide When the block moves to a proper position, the spring resets the latch, and the end of the latch is inserted into the pin hole, so that the sliding block is fixed relative to the fixed sliding seat.

The present invention has following beneficial effects:

1. The seat plate and the backrest of the present invention are hinged, the backrest is hinged to the connecting portion of the backrest, and the seat plate is slidably connected to the connecting portion of the seat plate. Such a structural setting enables the present invention to slide on the connecting portion of the seat plate to control the inclination of the backrest; it also enables the user to control the inclination of the chair back by controlling the ratio of the weight of the upper body to the chair back, thereby adjusting the posture of sitting or lying; it also enables the user to control the upper body The proportion of gravity loaded on the back of the chair is used to control the inclination of the back of the chair, and at the same time, the hip controls the sliding of the seat plate on the connecting part of the seat plate to comprehensively adjust the posture of sitting or lying down, and truly realize the adjustment effect of moving with you.

2. The present invention makes the adjustment of the present invention more convenient by optimizing the connection relationship between the various components, especially through the optimization of the first hinge mechanism and the second hinge mechanism, ensuring that the user can use less force to Realize the adjustment effect that moves with you.

3. In the present invention, the seat plate is slidably connected to the connecting part of the seat plate by setting the first sliding mechanism, and the first chute is set as an inclined plane or a curved surface, so that the present invention can not only be adjusted along with the movement, but also ensure the The dynamic adjustment effect is in line with ergonomics, and the user's sitting and lying switch is both convenient and comfortable.

4. The present invention controls the first sliding mechanism by setting the locking mechanism, so that the adjustment can be realized by closing the locking mechanism, and the chair frame assembly can be fixed after being adjusted to the current suitable state by opening the locking mechanism.

5. The present invention also installs the backrest slider by setting the second sliding mechanism. The backrest slider is used as the main stress point of the user when adjusting the posture, so that the backrest slider can slide along with the user's upper body, which can effectively Friction between the backrest and the user's back is avoided, thereby preventing the user from wrinkling or bunching in the back area of the adjusted garment.

Description of drawings

Fig. 1 is the front view of the present invention;

Fig. 2 is a side view of the present invention;

Fig. 3 is a structural schematic diagram of a backrest of the present invention;

Fig. 4 is a structural schematic diagram of a first sliding mechanism and a locking mechanism of the present invention;

In the figure, 1-chair frame, 2-seat board, 3-backrest, 4-first sliding mechanism, 5-second sliding mechanism, 6-third sliding mechanism, 7-second hinge mechanism, 8-locking mechanism, 9 - control mechanism;

11-seat board connection part, 12-backrest connection part;

31-backrest body, 32-backrest slider;

41-fixed sliding seat, 42-sliding block, 411-the first chute, 421-the first sliding head;

51-the second chute, 52-the second sliding head;

61-the first hinge seat, 62-the first rotating part;

71-the second hinge seat, 72-the second rotating part;

81-bolt, 82-pin hole;

91-pin barrel, 92-spring, 93-guy wire.

Detailed ways

The present invention will be further explained below in conjunction with the accompanying drawings.

This specific embodiment is only an explanation of the present invention, not a limitation of the present invention. Any changes made by those skilled in the art after reading the description of the present invention, as long as they are within the scope of the claims, will be subject to patent law. protection of.

As shown in FIG. 1-2 , a chair frame assembly with adjustable sitting posture includes a chair frame 1 , a seat board 2 and a backrest 3 . The chair frame 1 includes a seat panel connecting portion 11 and a backrest connecting portion 12 .

As shown in Figure 2, the seat board 2 and the backrest 3 are connected by a first hinge mechanism 6, and the first hinge mechanism 6 includes a first hinge seat 61 arranged at the bottom of the seat board 2 and a first rotating part arranged at the bottom of the backrest 3 62; the first hinged seat 61 and the seat plate 2 form a fixed angle α, the first rotating part 62 and the backrest 3 form a fixed angle β, and the first hinged seat 61 and the first rotating part 62 form a hinged angle γ. In the embodiment, α=β=γ=120°.

As shown in Figure 1 or 2 or 3, the backrest 3 and the backrest connection part 12 are connected by a second hinge mechanism 7, and the second hinge mechanism 7 includes a second hinge seat 71 arranged on the backrest connection part 12 and a second hinge seat 71 arranged on the backrest connection part 12. 3 The second rotating part 72 on the back.

As shown in Figure 2, the seat plate 2 and the seat plate connecting portion 11 are connected by a first sliding mechanism 4, the first sliding mechanism 4 includes a fixed sliding seat 41 arranged on the seat plate connecting portion 11, The sliding block 42 at the bottom of the board 2; the fixed sliding seat 41 is connected with the sliding block 42 by sliding fit. As shown in Figure 4, the fixed sliding seat 41 is provided with a first sliding groove 411, and the sliding block 42 is provided with a first sliding head 421, and the first sliding head 421 is slidably fixed on the first sliding groove. Inside 411. The first chute 411 is an inclined surface or a curved surface, and in this embodiment the first chute 411 is an inclined surface.

Based on the above-mentioned chair frame assembly 1 , seat board 2 , backrest 3 , first hinge mechanism 6 , second hinge mechanism 7 and first slide mechanism 4 , the chair frame assembly of this embodiment can be adjusted along with it. The user will only need to transfer part of the gravity of the upper body to the backrest 3 to make the second hinge mechanism 7 rotate. This actually utilizes the principle of leverage. When the second hinge mechanism 7 rotates, it can drive the first hinge mechanism 6 at the same time. , since the seat plate 2 is slidably connected to the seat plate connecting portion 11, after the first hinge mechanism 6 is driven, the seat plate 2 will slide, and the adjustment is finally realized.

The user can also adjust in different ways. For example, after transferring part of the gravity of the upper body to the backrest 3, the user can also use the buttocks to control the seat board 2 at the same time, so that the seat board 2 can slide; The sliding and the rotation of the backrest 3 are linked; therefore, the adjustment of the backrest 3 can be made easier and more convenient under the premise that the seat board 2 is controlled by the buttocks.

In the present embodiment, as shown in FIG. 3 , the backrest 3 includes a backrest body 31 having a vacant area and a backrest slider 32 smaller than the vacant area, the backrest body 31 and the backrest slider 32 are connected by a second sliding mechanism 5, The second sliding mechanism 5 includes second sliding grooves 51 arranged on two opposite inner sides of the vacant area and second sliding heads 52 arranged on both outer sides of the backrest slider 32, and the second sliding head 52 is slidably fixed on the second sliding head. Inside the groove 51.

Based on this, this embodiment also has better effects. The back of the user is in contact with the backrest slider 32. When the sitting posture is adjusted, although the relative position of the backrest 32 relative to the back can change, since the backrest slider 32 is connected with the backrest body 31 through the second sliding mechanism 5, the user There is almost no change in relative position between the back of the backrest and the backrest slider 32. This relatively fixed method is conducive to the smooth adjustment. Otherwise, this relative change will occur between the back and the backrest, which will hinder the adjustment to a certain extent. Stand up or use your arms to prop up your upper body to further adjust your sitting posture.

In this embodiment, as shown in FIG. 4 , a locking mechanism 8 is provided between the fixed sliding seat 41 and the sliding block 42 . 81 corresponds to the pin holes 82 provided in multiple stages. Also comprising the control mechanism 9 of the bolt, the control mechanism 9 of the bolt includes a pin cylinder 91 for accommodating the bolt, a spring 92 arranged in the pin cylinder for resetting the bolt and a backguy 93 for controlling the bolt; when the backguy 93 is pulled When pulling, the bolt 81 is pulled out from the pin hole 82, so that the sliding block 42 can slide relative to the fixed sliding seat 41; when the pull wire 93 is not pulled and the sliding block 42 moves to a proper position, the spring 92 resets the bolt, and the end of the bolt The part is inserted into the pin hole 82, so that the sliding block 42 is fixed relative to the fixed sliding seat 41.

Claims (10)

1. a kind of adjustable chair frame component of sitting posture, including chair frame（1）, seat board（2）And backrest（3）, the chair frame（1）Including seat board Connecting portion（11）With backrest connecting portion（12）；It is characterized in that：The seat board（2）With the backrest（3）It is hinged, the backrest （3）With the backrest connecting portion（12）It is hinged, the seat board（2）With the seat board connecting portion（11）It is slidably connected.

A kind of 2. adjustable chair frame component of sitting posture according to claim 1, it is characterised in that：The seat board（2）With it is described Seat board connecting portion（11）Between pass through the first sliding equipment（4）Connection, first sliding equipment（4）Including being arranged at the seat Plate connecting portion（11）On fixing slide carriage（41）, be arranged at the seat board（2）The sliding shoe of bottom（42）；The fixing slide carriage （41）With the sliding shoe（42）Between be slidably connected.

A kind of 3. adjustable chair frame component of sitting posture according to claim 2, it is characterised in that：The fixing slide carriage（41）On Equipped with the first sliding groove（411）, the sliding shoe（42）It is foxy to be equipped with first（421）, described first is foxy（421）Slideably It is fixed on the first sliding groove（411）It is interior.

A kind of 4. adjustable chair frame component of sitting posture according to claim 3, it is characterised in that：The first sliding groove（411） For an inclined-plane or a curved surface.

A kind of 5. adjustable chair frame component of sitting posture according to claim 1, it is characterised in that：The backrest（3）Including tool There is the backrest body in a vacant area（31）With the backrest sliding block less than the vacant area（32）, the backrest body（31）With by Carry on the back sliding block（32）Pass through the second sliding equipment（5）Connection, second sliding equipment（5）Two including being arranged on the vacant area Second sliding slot of a opposite inner side（51）Be arranged at the backrest sliding block（32）The second of two outsides is foxy（52）, described Two is foxy（52）It is slidably fixed to second sliding slot（51）It is interior.

A kind of 6. adjustable chair frame component of sitting posture according to claim 1, it is characterised in that：The seat board（2）With it is described Backrest（3）Between pass through the first linkwork（6）Connection, first linkwork（6）Including being arranged on the seat board（2）Bottom First hinged seat in portion（61）Be arranged on the backrest（3）First rotation section of lower part（62）；First hinged seat（61） With the seat board（2）Form fixed angle α, first rotation section（62）With the backrest（3）Geometrical clamp angle beta is formed, wherein, 90 ° of 180 ° of ＜ α ＜, 90 ° of 180 ° of ＜ β ＜.

A kind of 7. adjustable chair frame component of sitting posture according to claim 6, it is characterised in that：First hinged seat（61）With One rotation section（62）Form hinged 180 ° of angle γ, 90 °≤γ ＜.

A kind of 8. adjustable chair frame component of sitting posture according to claim 1, it is characterised in that：The backrest（3）With it is described Backrest connecting portion（12）Between pass through the second linkwork（7）Connection, second linkwork（7）Connect including being arranged on backrest Socket part（12）On the second hinged seat（71）Be arranged on the backrest（3）Second rotation section at back（72）.

A kind of 9. adjustable chair frame component of sitting posture according to claim 1, it is characterised in that：The fixing slide carriage（41）With The sliding shoe（42）Between be provided with locking mechanism（8）, the locking mechanism（8）Including with the sliding shoe（42）Linkage Latch（81）And it is arranged on the fixing slide carriage（41）The upper and latch（81）The corresponding multistage pin hole set（82）.

A kind of 10. adjustable chair frame component of sitting posture according to claim 9, it is characterised in that：Further include the latch Control mechanism（9）, the control mechanism of the latch（9）Including for accommodating the lock bolt cylinder（91）, be arranged on the pin It is used for the spring for resetting the latch in cylinder（92）, control latch bracing wire（93）；When the bracing wire（93）When being pulled, institute State latch（81）From the pin hole（82）It is drawn off so that the sliding shoe（42）Relative to the fixing slide carriage（41）It can slide It is dynamic；When the bracing wire（93）Do not drawn, sliding shoe（42）When being moved to suitable position, spring（92）Reset latch, latch The pin hole is inserted into end（82）In, make sliding shoe（42）Relative to the fixing slide carriage（41）It is fixed.