CN203073752U

CN203073752U - Seat

Info

Publication number: CN203073752U
Application number: CN 201220419424
Authority: CN
Inventors: 谢雷
Original assignee: TSUKAMOTO CO Ltd; SHANGHAI SINCOL FURNITURE PRODUCTS CO Ltd
Current assignee: TSUKAMOTO CO Ltd; SHANGHAI SINCOL FURNITURE PRODUCTS CO Ltd
Priority date: 2012-08-22
Filing date: 2012-08-22
Publication date: 2013-07-24
Anticipated expiration: 2022-08-22
Also published as: JP3183378U

Abstract

The utility model relates to a seat (1) comprising a base (3) and a backrest (5). The seat comprises an underframe (11), a waist bracket (13) and a back bracket (15), wherein the underframe (11) forms a bracket of the base; one end of the waist bracket (13) is rotatably connected with the rear part of the underframe, and any included angle can be formed between the waist bracket (13) the underframe; and the bracket of the backrest (5) is formed by the back bracket (15) and the waist bracket (13), one end of the back bracket (15) is rotatably connected with the other end of the waist bracket, and an included angle between the back bracket (15) and the waist bracket can change between a first angle and a second angle. The seat can be regulated in multiple modes, and has multiple purposes.

Description

Seat

Technical field

The utility model relates to a kind of seat, more particularly, relates to the adjustable seat of a kind of backrest angle.

Background technology

Utilize self-latching hinge etc. to be rotationally connected between the support of the pedestal part of the seat that existing backrest angle is adjustable and the support of back-rest, can be with mutual fixed angle in angle arbitrarily.Pedestal part support and back-rest support wrap up materials such as liner, sponge, fabric respectively, form base and backrest.The user adjusts the base of this seat and the angle of backrest is adjusted comfortable sitting posture, with backrest fell backward to base on same plane, also can on this seat, do motions such as sit-ups.

But the regulative mode of above-mentioned seat is single, can only regulate the angle of backrest integral body, and purposes is also single.

The utility model content

The utility model purpose is to provide a kind of seat, and it can carry out the adjusting of multiple mode, serves many purposes.

Seat of the present utility model is characterized in that, has: underframe (11), and it constitutes the support of described pedestal part; Waist bracket (13), the one end is rotationally connected with the rear portion of described underframe, can form angle arbitrarily with described underframe; Back bracket (15), itself and described waist bracket (13) constitute the support of described back-rest (5), one end of this back bracket (15) and the other end of described waist bracket are rotationally connected, and the angle between this back bracket (15) and the described waist bracket can change between first angle and second angle.

According to the utility model, seat of the present utility model has underframe (11), waist bracket (13), and back bracket (15), back bracket (15) can be with respect to waist bracket (13) bending, and bending angle can free adjustment, so user's extended torso backward, the angle that back bracket (15) is wished with respect to waist bracket (13) bending, this has increased the purposes of seat.

Seat of the present utility model has: elastomeric element, it is installed between described waist bracket and the described back bracket, when the angle between described back bracket and the described waist bracket departs from described first angle, described elastomeric element applies restoring force to described back bracket, makes described back bracket return back to described first angle.

In seat of the present utility model, controlling organization (30), it is arranged between described waist bracket and the described back bracket, it with described seat adjustment one of adjustable state of the angle of described back bracket and the described waist bracket adjustable included angle that is locked as the lock-out state of described first angle and described back bracket and described waist bracket.

By utilizing controlling organization locking back bracket and releasing locking, can switch the function of seat easily to back bracket.

Seat described in the utility model, wherein, described elastomeric element is a scroll spring, and the center-side of described scroll spring is fixed on a side of described waist bracket and described back bracket, and the outer circumference end of described scroll spring is connected with the opposing party of described waist bracket and described back bracket.

Seat described in the utility model, wherein, described first angle is about 180 degree.

Seat described in the utility model, wherein, described controlling organization comprises, the pin action bars, it has pin rod, and the length parallel with described pin rod is inserted axle, is connected the bend that described length is inserted axle and described pin rod respectively with two ends; Installing hole, it is arranged at a side of described back bracket, and described length is inserted the axle insertion and is stretched out this installing hole; First draw-in groove, it is arranged at a described side of described back bracket; With second draw-in groove, it is arranged at a side of described waist bracket, under described lock-out state, this second draw-in groove is aimed at described first draw-in groove, wherein, under described lock-out state, described pin rod passes described first draw-in groove and described second draw-in groove, under described adjustable state, described pin rod is extracted from described first draw-in groove and described second draw-in groove.

Seat described in the utility model wherein, is provided with the connecting axle of a described end that is used for the described back bracket of rotating support at the described other end of described waist bracket, and an end of this connecting axle is provided with spacer, forms described second draw-in groove on this spacer.

Seat described in the utility model, wherein, described controlling organization also comprises accepting box, the described side that it is installed in described back bracket is used to accommodate the bend of described pin action bars, and the bottom of described accepting box is formed with to be passed described length and insert the length of axle and insert axis hole, pass the draw-in groove hole of described pin rod, with the releasing lock hole, under described adjustable state, described pin rod is extracted the described hole that unlocks of insertion, back from described first draw-in groove and second draw-in groove.

Seat described in the utility model, wherein, the outside that the slotting shaft extension of described length goes out the part of described installing hole is with back-moving spring, and it is inserted axle to described length and applies the power of returning described installing hole direction.

Seat described in the utility model wherein, is provided with the lumbar support body on described connecting axle.

Description of drawings

Fig. 1 is the schematic diagram of the seat of an embodiment of the present utility model.

Fig. 2 is the chair shelf structure of the seat of an embodiment of the present utility model.

Fig. 3 is the structure chart of user mode of the seat of an expression embodiment of the present utility model.

Fig. 4 is the structure chart of user mode of the seat of expression the utility model embodiment.

Fig. 5 is the figure of the seat decomposing state of the utility model embodiment.

Fig. 6 is the figure of the scroll spring that uses as elastomeric element in the expression present embodiment.

Fig. 7 is in the stereogram of twist-lock state for controlling organization.

Fig. 8 is the schematic diagram of accepting box.

Fig. 9 is in the stereogram of removing the twist-lock state for controlling organization.

The specific embodiment

Below, be described with reference to the accompanying drawings the structure of seat of the present utility model.

As shown in Figure 1, the seat 1 of present embodiment comprises base 3 and backrest 5.Though do not show among Fig. 1 that seat 1 also can have the chair leg.

Fig. 2 is the rack assumption diagram of seat 1.Fig. 3 be the expression seat 1 a user mode under rack assumption diagram.Fig. 4 be the expression seat 1 another user mode under rack assumption diagram.

As shown in Figure 2, seat 1 also comprises the support (underframe) 11 of base 3, waist bracket 13, and the one end is rotationally connected with the rear portion of underframe 11 by hinge L1; Back bracket 15, the other end of one end and waist bracket 13 is rotationally connected; With leg support frame 17, it is rotationally connected with underframe 11 front portions by hinge L2.Back bracket 15 and waist bracket 13 constitute the support of backrests 5.

In the example of Fig. 2 to Fig. 4, hinge L1 can make waist bracket 13 keep arbitrarily angled with respect to underframe 11.Such as, can use commercially available multistage to regulate hinge (as silver dollar corporate system KDS-12 type) etc.

In Fig. 2, the support of the back-rest 5 that is made of back bracket 15 and waist bracket 13 is approximate upright with respect to underframe 11, and the user can be sitting in and lean against backrest 5 on the base 3 this moment.In Fig. 3, the support of the back-rest 5 that is made of back bracket 15 and waist bracket 13 is sidelong down backward to roughly being in same plane with underframe 11, and this moment, the user can lie on the seat 1, such as, the user can do sit-ups on seat 1.

In the present embodiment, because back bracket 15 is rotationally connected with waist bracket 13, so the angle between back bracket 15 and the waist bracket 13 can be adjusted, that is, back bracket 15 can freely bend with respect to waist bracket 13.In the example of Fig. 2, the angle between back bracket 15 and the waist bracket 13 is 180 degree, for there not being the state of bending.Equally, in the example of Fig. 3, the angle between back bracket 15 and the waist bracket 13 also is 180 degree, also for there not being the state of bending.In the example of Fig. 4, back bracket 15 has bent the β angle backward with respect to waist bracket 13.In the present embodiment, be provided with scroll spring 40 at 20 places, rotating junction of waist bracket 13 and back bracket 15.

Fig. 5 is the figure of the seat decomposing state of the utility model embodiment.Fig. 6 is the figure of the scroll spring that uses as elastomeric element in the expression present embodiment.As shown in Figure 5 and Figure 6, scroll spring 40 has center-side 42 and outer circumference end 43.The center-side 42 of scroll spring 40, embed be arranged on 20 places, rotating junction and with the chuck slit of the fixing steady pin 41 of waist bracket 13 in (not shown), thereby fixing with waist bracket 13.The outer circumference end 43 of scroll spring 40 is fastened on the engagement pin 44 of back bracket 15.Thus, utilize 40 pairs of back bracket 15 of scroll spring to apply the elastic force of arrow R direction among Fig. 4.After the locking of removing controlling organization 30, under the state that back bracket 15 bends backward with respect to waist bracket 13, can utilize the elastic force of arrow R direction in 40 pairs of back bracket of scroll spring, 15 action diagrams 5, promptly back bracket 15 be applied and make it return to the elastic force that is in same flat state with respect to waist bracket 13.

The other end in waist bracket 13 and the rotating junction 20 of back bracket 15 is provided with controlling organization 30, this controlling organization 30 back bracket 15 can be locked in as shown in Figures 2 and 3 with waist bracket 13 in one plane position roughly.Controlling organization 30 also can be removed this locking, thereby back bracket 15 can be rotated with respect to waist bracket 13.

The hinge L2 that is rotationally connected between leg support frame 17 and the underframe 11 can make leg support frame 17 and underframe 11 keep arbitrarily angled.Hinge L2 also can use above-mentioned multistage to regulate hinge etc.

At Fig. 2 to the example shown in Figure 4, as mentioned above, at controlling organization 30 waist bracket 13 and back bracket 15 are locked in (with reference to Fig. 2 and Fig. 3) under the roughly conplane state, waist bracket 13 and back bracket 15 are connected as a single entity and constitute backrest 5, backrest 5 can rotate arbitrarily angled and fixing with respect to base 3, the user can place seat 1 to lean on the floor and use, and by adjusting the angle between base 3 and the backrest 5, such as, (underframe 11 when backrest 5 is poured onto with base 3 roughly on same plane backward, waist bracket 13, back bracket 15 becomes position shown in Figure 3), seat 1 can be used for the exercise of sit-ups etc.

In addition, as Fig. 2 and shown in Figure 4, when waist bracket 13 and underframe 11 are fixed in angle [alpha], by removing the locking of 30 pairs of back bracket 15 of controlling organization, back bracket 15 is rotated backward with respect to waist bracket 13, such as, back bracket 15 rotates into angle beta with respect to waist bracket 13, and backrest 5 is bent near user's waist.At this moment, support waist such as the bending that the user can form by connecting portion 20 places in waist bracket 13 and back bracket 15, and the upper body part is faced upward the exercise of making stretching routine backward.At this moment, under the effect of the elastic force of scroll spring 40, can make the first half (promptly with back bracket 15 corresponding parts) of backrest 5, back applied thrust to the user, when user upper body part is faced upward backward, the bending part backward of backrest 5 can effectively support user's back, the damage of avoiding moving and causing; On the other hand, when the user straightens the upper body timesharing, can be effectively user's back be imposed thrust.

Below, the detailed structure of the controlling organization 30 in the seat 1 of detailed description present embodiment.

As shown in Figure 5, in the present embodiment, controlling organization 30 is arranged between back bracket 15 and the waist bracket 13, comprising: be arranged at first draw-in groove 32 on the back bracket 15; Second draw-in groove 33 that interfixes with respect to waist bracket 13; With operating portion with the pin rod 31a that can insert first draw-in groove 32 and second draw-in groove 33.

Fig. 7 is in the stereogram of twist-lock state for controlling organization.Fig. 8 is the schematic diagram of accepting box.Fig. 9 is in the stereogram of removing the twist-lock state for controlling organization.

The concrete structure of controlling organization 30 is, as the turning cylinder of back bracket 15, is provided with waist bracket 13 at the connecting portion 20 of waist bracket 13 and back bracket 15 and is fixedly coupled axle 21.On back bracket 15, depart from first draw-in groove 32 that connecting axle 21 is provided with pass.In addition, as shown in Figure 7, welding stationary positioned sheet 39 forms second draw-in groove 33 on spacer 39 on connecting axle 21, thereby makes second draw-in groove 33 fixing with respect to waist bracket 13.When back bracket 15 and waist bracket 13 are in roughly same plan-position, be back bracket 15 with the angle β of waist bracket 13 for roughly 180 ° the time, first draw-in groove 32 overlaps with second draw-in groove 33, pin rod 31a described later is inserted, back bracket 15 and waist bracket 13 are in the lock state.

Action bars 31 comprises the pin rod 31a that is parallel to each other, the long axle 31b that inserts, and utilizes bend 31c to connect pin rod 31a and the long axle 31b that inserts, and makes action bars 31 form the J font.In addition, also be formed for inserting the long installing hole 34 of inserting axle 31b on back bracket 15, the long axle 31b that inserts inserts this installing hole 34, is the center rotation thereby can make pin rod 31a with the long axle 31b that inserts.By along direction shown in the arrow A among Fig. 5 and rightabout operating operation bar 31 thereof, can make long slotting axle 31b do turnover and move along installing hole 34.After will growing slotting axle 31b insertion installing hole 34, put helical spring 36 by the inserting side of inserting a 31b from length, and screw bolt 37 at front end, can utilize 36 pairs of action bars 31 of helical spring to apply and make a long slotting 31b insert the elastic force of installing hole 34.

In the present embodiment, in order to improve comfortableness and the convenience of using controlling organization 30, also in controlling organization 30, be provided for accommodating the accepting box 38 of the bend of action bars 31.

As Fig. 7～accepting box 38 shown in Figure 9 is tubular, is formed with the hole 38d that aims at installing hole 34 in the bottom; The hole 38e corresponding with first draw-in groove 32; With the distance of distance hole 38d, with hole 38d and the equidistant hole 38f of 38e.

As shown in Figure 7, be in the lock state following time in back bracket 15 and waist bracket 13, the pin rod 31a of action bars 31 inserts the hole 38e of accepting box 38, and insert first draw-in groove 32 and second draw-in groove 33, make between back bracket 15 and the waist bracket 13 and interfix, can not rotate around connecting portion 20, be roughly 180 °, be in roughly conplane state thereby back bracket 15 and waist bracket 13 are locked in the angle shown in Fig. 2,3.At this moment, because pin rod 31a has been inserted into first draw-in groove 32 and second draw-in groove 33, make the bend 31c of action bars 31 be housed in the accepting box 38 of tubular.

When the user under above-mentioned lock-out state, when the opposite direction of arrow A spurs bend 31c in Fig. 5, the length of action bars 31 is inserted axle 31b along the opposite direction side shifting of installing hole 34 to arrow A, simultaneously, the pin rod 31a of action bars 31 is pulled out by first draw-in groove 32 and second draw-in groove 33, can remove the lock-out state of back bracket 15 and waist bracket 13.Then, around the long axle 31b rotary manipulation bar 31 of inserting, make the pin rod 31a mating holes 38f of action bars 31, as shown in Figure 9, to making the long axle 31b that inserts insert the hole 38f of the direction of installing hole 34 with pin rod 31a insertion accepting box 38, then can after removing the twist-lock of back bracket 15, action bars be fixed among the hole 38f of accepting box 38, avoid rocking the rotation of obstruction back bracket 15 and user's motion because of pin rod 31a with respect to waist bracket 13.The bend 31b of action bars 31 also can be contained in the accepting box 38 under the state that unlocks, and avoids hindering the user to move.

At this moment, removed the twist-lock of back bracket 15 with respect to waist bracket 13, when the user firmly leaned on back bracket 15, back bracket 15 served as that axle rearward rotates with respect to waist bracket 13 and to topple over connecting axle 21.As Fig. 2 and shown in Figure 4, because waist bracket 13 is fixed on angle [alpha] arbitrarily with respect to underframe 11, the user can make the above torso portion layback of upper body waist under the situation that waist is supported, do stretching routine.

Owing between back bracket 15 and waist bracket 13, be connected with scroll spring 40 as elastomeric element, it applies the angle that recovers with waist bracket 13 to back bracket 15 is 180 ° the elastic force (promptly apply with waist bracket 13 and return to roughly conplane elastic force) of state roughly, therefore, when utilizing seat 1 to make stretching routine, the user can give the user back with thrust, can effectively guarantee sports safety, and can help the user to carry out stretching routine repeatedly.

In addition, owing to be provided with accepting box 38, then no matter back bracket 15 is in the twist-lock state, under the state that still unlocks, the bend 31c of action bars 31 all can be accommodated in the accepting box 38 of tubular.Therefore, no matter the user utilizes the seat of present embodiment to do sit-ups (back bracket 15 is in the twist-lock state), or stretching routine (back bracket 15 is in the state of unlocking), and action bars 31 can not hinder user movement, and easy to use.

For action bars 31, owing to helical spring 36 is installed in long part of inserting the insertion installing hole 34 of axle 31b, and all the time action bars 31 is applied the elastic force that makes long slotting axle 31b direction of insertion, therefore, when the user utilizes seat 1 motion, action bars 31, especially pin rod 31a can unexpectedly not deviate from from first and second draw-in

grooves

32,33 because of the vibration in when motion, remove the twist-lock to back bracket 15.Thereby can improve the security and the reliability of seat.

According to the seat 1 of present embodiment, because it has underframe 11; One end is rotationally connected with the rearward end of underframe, can form the waist bracket 13 of any angle with underframe 11; The back bracket 15 that the other end of one end and waist bracket is rotationally connected, can make back bracket 15 and waist bracket 13 be in roughly same plane, be back bracket 15 and the angle β of waist bracket 13 is 180 ° position roughly, and back bracket 15 is changed between the turned position that the dorsal part of seat rotates with respect to waist bracket 13.Therefore, the user can utilize seat 1 to make stretching routine, as shown in Figure 3, can be according to individual's physical condition, by adjusting the angle [alpha] of waist bracket 13 with respect to underframe 11, the Height Adjustment of the waist bracket 13 of supporting user waist and the connecting axle 21 of back bracket 15 to only shape, can more effectively be carried out the exercise of stretching routine.In the present embodiment, in order further to improve the effect of 1 couple of user's of seat lumbar support, in the front side of connecting axle 21, i.e. a side of user's dependence is provided with lumbar support body 50, and it can support waist, improves the comfortableness of using.

More than a preferred embodiment of the present utility model is illustrated, what use as elastomeric element in the present embodiment is scroll spring 40, when using scroll spring 40, in order when the user does stretching routine, to provide enough thrust to user's back, need be roughly 180 ° at the angle of back bracket 15 and waist bracket 13, when promptly being on the roughly same plane, give scroll spring 40 enough circumferential elastic force in advance, at this moment, need between back bracket 15 and waist bracket 13, spacer pin 45 be set, excessively rotate with respect to waist bracket 13 to stop back bracket 15 to the front side of seat 1, this is apparent to those skilled in the art, in the present embodiment, spacer pin 45 is arranged at spacer 39, but also can adopt other position limiting structures.

In addition, controlling organization 30 also is not limited to the record of the foregoing description, can be pin connected construction, perhaps other engagement connection structures arbitrarily.

Also leg support frame 17 can be cancelled, thereby the volume of seat can be reduced and the floor space when using.

More than describe preferred embodiment of the present utility model in detail.The utility model is not limited to above-mentioned enforcement, and those skilled in the art can carry out various distortion and replacement to above-mentioned embodiment, and the technical scheme that obtains by this distortion and replacement all belongs to protection domain of the present utility model.

Claims

1. seat (1) that comprises base (3) and backrest (5) is characterized in that having:

Underframe (11), it constitutes the support of described base;

Waist bracket (13), the one end is rotationally connected with the rear portion of described underframe, can form angle arbitrarily with described underframe;

Back bracket (15), itself and described waist bracket (13) constitute the support of described backrest (5), one end of this back bracket (15) is connected rotationally with the other end of described waist bracket, and the angle between this back bracket (15) and the described waist bracket can change between first angle and second angle.

2. seat as claimed in claim 1 is characterized in that having:

Elastomeric element, it is installed between described waist bracket and the described back bracket, when the angle between described back bracket and the described waist bracket departed from described first angle, described elastomeric element applied restoring force to described back bracket, makes described back bracket return back to described first angle.

3. seat as claimed in claim 2 is characterized in that:

Described elastomeric element is a scroll spring,

The center-side of described scroll spring is fixed on a side of described waist bracket and described back bracket, and the outer circumference end of described scroll spring is connected with the opposing party of described waist bracket and described back bracket.

4. seat as claimed in claim 1 is characterized in that:

Described first angle is about 180 degree.

5. seat as claimed in claim 1 is characterized in that having:

Controlling organization (30), it is arranged between described waist bracket and the described back bracket, the angle that described seat is adjusted into described back bracket and described waist bracket is locked in the lock-out state of described first angle, or is adjusted into the adjustable state of the adjustable included angle of described back bracket and described waist bracket.

6. seat as claimed in claim 5 is characterized in that:

Described controlling organization comprises,

Pin action bars (31), it has pin rod (31a), and the length parallel with described pin rod (31a) is inserted axle (31b), is connected the bend (31c) that described length is inserted axle and described pin rod respectively with two ends;

Installing hole (34), it is arranged at a side of described back bracket, and described length is inserted the axle insertion and is stretched out this installing hole;

First draw-in groove (32), it is arranged at a described side of described back bracket; With

Second draw-in groove (33), it is arranged at a side of described waist bracket, and under described lock-out state, this second draw-in groove (33) is aimed at described first draw-in groove,

Wherein,

Under described lock-out state, described pin rod (31a) passes described first draw-in groove and described second draw-in groove, and under described adjustable state, described pin rod (31a) is extracted from described first draw-in groove and described second draw-in groove.

7. seat as claimed in claim 6 is characterized in that:

Be provided with the connecting axle (21) of a described end that is used for the described back bracket of rotating support at the described other end of described waist bracket, an end of this connecting axle is provided with spacer (39), forms described second draw-in groove on this spacer.

8. seat as claimed in claim 6 is characterized in that:

Described controlling organization also comprises accepting box (38), and the described side that it is installed in described back bracket is used to accommodate the bend of described pin action bars,

The bottom of described accepting box is formed with passes the slotting axis hole (38d) of length that described length is inserted axle, and pass the draw-in groove hole (38e) of described pin rod (31a) and remove lock hole (38f),

Under described adjustable state, described pin rod is extracted the described hole that unlocks of insertion, back from described first draw-in groove and second draw-in groove.

9. seat as claimed in claim 7 is characterized in that:

The outside that the slotting shaft extension of described length goes out the part of described installing hole is with back-moving spring, and it is inserted axle to described length and applies the power of returning described installing hole direction.

10. seat as claimed in claim 7 is characterized in that:

On described connecting axle, be provided with lumbar support body (50).

11. seat as claimed in claim 1 is characterized in that:

Leading section at described underframe is rotatably connected to leg support frame (17), and the angle of this leg support frame and described underframe can remain arbitrarily angled.