CN104545072B

CN104545072B - Folding chair

Info

Publication number: CN104545072B
Application number: CN201410375192.4A
Authority: CN
Inventors: 鲍志廷
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-23
Filing date: 2014-08-01
Publication date: 2017-02-15
Anticipated expiration: 2034-08-01
Also published as: CN104545072A; EP2865290B1; EP2865290A1; JP5869647B2; TWI483694B; JP2015080724A; TW201515605A

Abstract

A folding chair comprises a supporting unit, a folding unit and a chair surface unit, wherein the supporting unit comprises an installation rod, the folding unit comprises a positioning seat sleeved on the installation rod, an upper sliding seat, a folding rod pivoted on the positioning seat and a linkage rod pivoted on the folding rod and the upper sliding seat, the chair surface unit comprises a main chair surface, two side chair surfaces and two tracks, the tracks are provided with an unfolding end point and a folding end point, the folding unit and the chair surface unit can be changed between an unfolding position and a folding position relative to the supporting unit, the linkage rod and the folding rod are respectively far away from the installation rod and are intersected at an angle when the folding unit and the chair surface unit are in the unfolding position, the top end of the folding rod is located at the unfolding end point of the tracks, the folding rod and the linkage rod are mutually folded and close to the installation rod when the folding unit is in the folding position, and the top end of the folding rod is located at the folding. The folding unit of the folding chair has simple rod structure and low manufacturing cost, and the folding rods are integrally formed instead of being pivoted in a multi-section way, so that the structural strength can be enhanced.

Description

Foldable chair

Technical field

The present invention relates to a kind of chair, more particularly to a kind of Foldable chair being installed on rod member.

Background technology

It is generally mounted to the movable Foldable chair on rod member, is mostly applied to crutch or multifunction umbrella, as additional use Way uses, and its purpose is to user can be rested on the way to recover body depending on health during walking Power, therefore, such Foldable chair must take into account Quick folding and the characteristic being convenient for carrying.

Such as US2, the Foldable chair disclosed by 380,437 and US3,999,565 grade Patent Cases, all have a support bar and A combined support and the seat support drawn close in this support bar can be folded respectively, however, this kind of folding designs in collapse state, should Foot rest is exposed with the structure of this seat support, and forms multiple gaps because of its shaft-like folding structure, not only visually very not unsightly, Also easily jam a finger because of not noting during using, also there is the not good doubt of safety in utilization.

And the Foldable chair disclosed by such as TW102112330 is although the disappearance of above-mentioned patent can be overcome, but due to folding Cellular construction is complicated and increase manufacturing cost, and articulated section is more each other to fold the rod member of unit, also reduces structure strong Degree.

Content of the invention

It is an object of the invention to provide the Foldable chair of a kind of energy reduces cost and stabilized structure.

A kind of Foldable chair of the present invention, comprise a support unit, one fold unit, an and seat unit, this Support unit includes a mounting rod, this fold unit include one be sheathed on the positioning seat of this mounting rod, slip cap located at This mounting rod and be located at upper saddle above this positioning seat, a bottom is connected to the folded rod of this positioning seat, and one is contrary Two ends are connected to the trace of described folded rod and this upper saddle, this seat unit include a main seat, two with should The side seat of main seat pivot joint, and two tracks being located at described side bottom seat, this main seat has one and is articulated on this The inner end of slide, an outer end in contrast to this inner end, and two be located between this inner end and this outer end and be in phase Anti- side edge part, the wherein side edge of described side seat is articulated in described side edge part respectively, and described track is used for for described receipts The sliding setting of pole top, this track has this outer end neighbouring and the expansion end points away from this main seat, and a neighbour This inner end nearly and the folding end points near this main seat, wherein, this folds unit can be with respect to this support with this seat unit Unit converts between an expanded position and a collapsed position, and in this expanded position, this main seat is with described side seat altogether Be located on angled with this mounting rod intersect take face, near this positioning seat, described folded rod top is located at institute to this upper saddle State the expansion end points of track, the outer end of described folded rod top and this main seat away from this mounting rod, in this collapsed position, This seat unit is U-shaped and coats this and folds unit, and this upper saddle is away from this positioning seat, described folded rod, described trace phase Mutually draw in close to this mounting rod, described folded rod top is located at the folding end points of described track, and the outer end with this main seat Portion is near this mounting rod.

Foldable chair of the present invention, this support unit also includes a upper limit part being fixed on this mounting rod, and The lower limit part that one is fixed on this mounting rod, when this expanded position, this upper saddle be butted on this upper limit part and no longer under Move, this positioning seat is butted on this lower limit part and no longer moves down.

Foldable chair of the present invention, this support unit also include one can by the foot rest of folding, in this expanded position, This foot rest can support this mounting rod so that this mounting rod tiltedly stands on ground, and face of taking is at an acute angle with this mounting rod to intersect, in this receipts During folding position, this foot rest is accommodated in this seat unit close to this mounting rod.

Foldable chair of the present invention, this positioning seat is fixed on this mounting rod.

Foldable chair of the present invention, the mounting rod of this support unit have parallel interval be arranged at outer peripheral face several are recessed Ditch.

Foldable chair of the present invention, this folds unit and also includes two pivot joints being respectively arranged at described folded rod top Seat group.

Foldable chair of the present invention, described pin joint seat group be respectively provided with one slippingly pivot be arranged on this track Upper driven base, an and lower trunnion mount being articulated in this upper driven base, it is in the word of falling H that this upper driven base is abutted each other with two with this interorbital The articulated part of type is pivotally connected to each other.

Foldable chair of the present invention, described pin joint seat group also has two respectively and is arranged at described upper driven base and described rail The stage clip in road.

Foldable chair of the present invention, this main seat also includes the guiding angle surface of two neighbouring described side edge part settings, described Side seat includes the guiding angle surface of neighbouring described side edge part setting respectively.

Foldable chair of the present invention, this seat unit also includes a torsion being arranged between this main seat and this upper saddle Spring.

Foldable chair of the present invention, this folds unit and also includes a company being connected between this positioning seat and this upper saddle Knot spring.

Foldable chair of the present invention, this support unit also include one to should positioning seat in this collapsed position and setting Upper stop part on this mounting rod.

Foldable chair of the present invention, this foot rest has two upper foot levers being articulated in this and folding unit, and two difference It is articulated in the lower foot lever of foot lever.

Foldable chair of the present invention, this foot rest also has two ends and is articulated in described upper foot lever respectively and folds list with this The operating bar of unit.

The beneficial effects of the present invention is：The member structure that this folds unit is simple, only described folded rod and described company Lever can reach the effect folding this seat unit, and therefore manufacturing cost reduces, and described folded rod be formed in one and Non- multisection type pivot joint, can increase structural strength.

Brief description

Fig. 1 is an expansion schematic perspective view of the first preferred embodiment of Foldable chair of the present invention；

Fig. 2 is one of this preferred embodiment and folds schematic perspective view；

Fig. 3 is a midway schematic perspective view of taking down the exhibits of the local part of this preferred embodiment, omit a side seat and One upper foot lever, a lower foot lever；

Fig. 4 is one of the local part of this preferred embodiment and folds schematic diagram；

Fig. 5 is that a bottom of a seat unit of this preferred embodiment regards schematic diagram；

Fig. 6 is a schematic side view taking face expressing this preferred embodiment；

Fig. 7 is the midway schematic diagram of taking down the exhibits of corresponding Fig. 6 of this seat unit of this preferred embodiment；

Fig. 8 is a front-view schematic diagram folding unit and this seat unit of this preferred embodiment；

Fig. 9 is the stereogram of a positioning seat of this preferred embodiment；

Figure 10 is that the bottom of a upper driven base of this pin joint seat group of this preferred embodiment regards schematic diagram；

Figure 11 is the generalized section of a pin joint seat group of this preferred embodiment；

Figure 12 is the exploded schematic perspective view of this preferred embodiment.

Specific embodiment

Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail.

Refering to Fig. 1 and Fig. 2, the first preferred embodiment of Foldable chair of the present invention is applied on portable crutch chair, and wraps Containing a support unit, 1, one folds unit 2, and one includes a main seat 31 and two and is articulated in this main seat 31 The seat unit 3 of side seat 32.

This support unit 1 includes a mounting rod 11, and can be fixed on this mounting rod 11 by the foot rest 12, of folding On upper limit part 13, an and lower limit part 14 being fixed on this mounting rod 11.

This mounting rod 11 has several chases 111 that parallel interval is arranged at outer peripheral face, and a handle being located at top 112, can increase the structural strength of this mounting rod 11 using described chase 111, and provide the start track that this folds unit 2 with Increase the stability of integrated operation.

This foot rest 12 has two and is articulated in the upper foot lever 121, two that this folds unit 2 and is articulated in foot lever 121 respectively Lower foot lever 122, and two ends are articulated in described upper foot lever 121 respectively and fold the operating bar 123 of unit 2 with this.

This folds unit 2 and includes a slip cap 21, slip cap of positioning seat located at this mounting rod 11 located at this peace 22, two bottoms of upper saddle filling bar 11 and being located at this positioning seat 21 top are articulated in the folded rod 23, two of this positioning seat 21 Opposite end is articulated in described folded rod 23 respectively and is respectively arranged at described folded rod with the trace 24, two of this upper saddle 22 The pin joint seat group 25 on 23 tops, and a draw-in groove 26 being arranged at this mounting rod 11.

This folds unit 2：This positioning seat 21 supplies the top pivot joint of described upper foot lever 121；On this Slide 22 supplies the top pivot joint of described operating bar 123.

Described trace 24 is articulated in being located proximate to centre and being partial to this positioning seat 21, described gearing of described folded rod 23 The length of bar 24 is less than the length of described folded rod 23, is conducive to the start of described folded rod 23 this seat unit 3 relatively.

Cooperation refer to Fig. 9, this positioning seat 21 have one to should lower limit part 14 lower locating slot 211.

This seat unit 3 includes this main seat 31 and the described side seat 32 being articulated in this main seat 31, this main seat 31 There is the 311, outer end 312 in contrast to this inner end 311 of inner end being articulated in this upper saddle 22, and two positions In between this inner end 311 and this outer end 312 and in the side edge part 313 being reversed.

One of lateral margin of described side seat 32 is articulated in described side edge part 313, and the bottom surface of described side seat 32 is even It is connected to described pin joint seat group 25.

Cooperation refers to Fig. 3, and this seat unit 3 also includes two tracks 33 being located at described side seat 32 bottom, and one It is arranged at the torsion spring 34 between this main seat 31 and this upper saddle 22, and described track 33 is used for the pivot for described folded rod 23 top Joint chair group 25 sliding is arranged, and cooperation refers to Fig. 8, Figure 10 and Figure 11, and described pin joint seat group 25 is respectively provided with a slippingly pivot Turn the upper driven base 251 being arranged on this track 33, and a lower trunnion mount 252 being articulated in this upper driven base 251, this upper driven base 251 It is by two articulated parts 253 abutting each other in the font of falling H and this track 33 between, reach the work(being pivotally connected to each other Effect, this upper driven base 251 is the normal rotation around this side seat 32 vertical, this lower trunnion mount 252 be rotate relative to this upper driven base 251 and Both rotation axis are perpendicular to one another, and this folded rod 23 is to rotate relative to this lower trunnion mount 252, this upper driven base 251, this lower trunnion mount 252 is orthogonal with this folded rod 23 three's rotation axis.

Refering to Fig. 8, illustrate further, the seat unit 3 in the present invention has the design of lead angle, this main seat 31 Also include the guiding angle surface 314 of two neighbouring described side edge part 313 settings, described side seat 32 includes neighbouring described side edge part respectively The guiding angle surface 321 of 313 settings, design whereby can allow this seat unit 3 will not clip to the clothing of user in this expanded position, This main seat 31 also includes a snap fit 315 being arranged at bottom surface.

Described folded rod 23 is to be articulated in described lower trunnion mount 252 respectively, and this track 33 has this outer end 312 neighbouring And the expansion end points 331 away from this main seat 31 side edge part 313, and this inner end 311 neighbouring and this main seat 31 close The folding end points 332 of side edge part 313 it is worth mentioning at this point that, described launch between end points 331 and described folding end points 332 described Track 33 is shaped as straight line, and it is arc or other shapes that described track 33 shape can also fit Demand Design.

Refering to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this folds unit 2 and this seat unit 3 can be with respect to this support unit 1 one Convert between individual expanded position and a collapsed position.

Refering to Fig. 1, Fig. 5 and Fig. 6, in this expanded position, the described upper foot lever 121 of this foot rest 12, lower foot lever 122 are respectively Away from this mounting rod 11 so that this foot rest 12 can support this mounting rod 11 so that this mounting rod 11 tiltedly stands on ground.

This upper saddle 22 is located at this upper limit part 13, and described trace 24 is respectively further from this installation with described folded rod 23 Bar 11 and angled intersecting, the described side seat 32 of described folded rod 23 this seat unit 3 of support, and described folded rod 23 top Positioned at the expansion end points 331 of described track 33, the outer end 312 of described folded rod 23 top and this main seat 31 is away from this installation Bar 11.

Now, this main seat 31 and described side seat 32 be co-located at angled with this mounting rod 11 intersect take face E (as shown in Figure 6), in the present embodiment, because this mounting rod 11 tiltedly stands on ground so that face of taking is in sharp with this mounting rod 11 Angle is intersected.

Cooperation refers to Fig. 3, Fig. 4 and Fig. 7, is intended to be converted into during this collapsed position it is only necessary to force in upward by this expanded position This upper saddle 22 is so that this upper saddle 22 slides towards the direction being away from this positioning seat 21 along this mounting rod 11, when cunning on this Seat 22, while sliding, drives this foot rest 12 being articulated on this positioning seat 21, and drives this to fold unit 2 and this seat Unit 3 start folding, refering to Fig. 2 and Fig. 3, this support unit 1 also include one to should positioning seat 21 in this collapsed position and It is arranged at the upper stop part 15 on this mounting rod 11, during from this expanded position to this collapsed position, pull this upper saddle 22 upwards And pull up this positioning seat 21 by folding unit 2 with this seat unit 3, when this positioning seat 21 has been pulled to block on this During the position of part 15, this positioning seat 21 is subject to the block of stop part 15 on this, and by described trace 24 and described operating bar 123 drives, this is folded unit 2 and is drawn close after this mounting rod 11 with this seat unit 3, and this upper saddle 22 is then positioned this draw-in groove 26, make this Foldable chair reach collapsed position.

It should be noted that in the diagram in order to understand internal structure, thus omit one of side seat 32 with corresponding Upper foot lever 121, the assembly such as lower foot lever 122.

The described operating bar 123 of this foot rest 12 is articulated in this upper saddle 22, therefore, when this upper saddle 22 up slides, Described operating bar 123 drives described upper foot lever 121 to rotate upward and moves closer in this mounting rod 11, and can make described lower foot lever 122 gradually relatively described upper foot lever 121 pivot close to this mounting rod 11, described upper foot lever 121 is U-shaped rod member, During this collapsed position, described lower foot lever 122 is respectively accommodated in described upper foot lever 121.

Refering to Fig. 3 and Fig. 7, during this folds unit 2 folding, promote and move on this upper saddle 22, due to this main chair The inner end 311 in face 31 is articulated in this upper saddle 22 so that the inner end 311 of this main seat 31 also moves upwards with this upper saddle 22 Dynamic.

Additionally, this upper saddle 22 can drive described folded rod 23 with this positioning seat 21 as pivotal point by described trace 24 Rotate upward, and the track 33 of described side seat 32 bottom surface is connected to described folded rod 23, because described trace 24 is articulated in Being located proximate to centre and be partial to this positioning seat 21 of described folded rod 23, the length of described trace 24 is less than described folded rod 23 Length, be conducive to the start of described folded rod 23 this seat unit 3 relatively, when described folded rod 23 rotates upward, described receipts End points 331 sliding will be launched to folding end points 332 from described track 33 in pole 23 top, and whereby, described side seat 32 can down Rotate and gradually draw close in this mounting rod 11, and towards drawing close in this main seat 31 direction, this main seat 31 can be by described side seat 32 related pullings are gradually drawn close for pivotal point turns downward in this mounting rod 11, finally this main seat 31 with this inner end 311 Assume U-shaped with described side seat 32 and coat this and fold unit 2 and this foot rest 12.

Cooperation refers to Fig. 2, Fig. 4 and Fig. 7, and when this foot rest 12, this folds unit 2 and this seat unit 3 gradually draws close this peace Dress bar 11, folds unit 2 with this foot rest 12 so that this folds unit 2 and this pin until this seat unit 3 is U-shaped and coats this Frame 12 is accommodated in this seat unit 3 respectively, and now, this foot rest 12, this folds unit 2 and be converted into this receipts with this seat unit 3 Folding position, this main seat 31 is substantially respectively parallel to this mounting rod 11 with described side seat 32, and this upper saddle 22 is fixed away from this Position seat 21, described folded rod 23, described trace 24 mutually draw in close to this mounting rod 11, and the described upper pin of this foot rest 12 Close to this mounting rod 11, described folded rod 23 top is located at the folding end points 332 of described track 33 to bar 121, and with this main chair The outer end 312 in face 31 is near this mounting rod 11.

Understand refering to Fig. 2, in this collapsed position, this foot rest 12, this fold unit 2 with this seat unit 3 near this Hand 112 so that the center of gravity of this first preferred embodiment is high, allow user will this first preferred embodiment when using as crutch, Can more effortlessly swing.

This folds unit 2 and also includes a link spring 27 being connected between this positioning seat 21 and this upper saddle 22, by this When collapsed position is to this expanded position, release the fixation between this upper saddle 22 and this draw-in groove 26, by the bullet of this link spring 27 Property restoring force this upper saddle 22 is pulled to downwards this positioning seat 21, and this torsion spring 34 is provided that the elasticity allowing this main seat 31 to pivot Restoring force, and then make this fold unit 2 to launch with this seat unit 3, this folds after unit 2 launched with this seat unit 3, borrows This is folded again by unit 2 by gravity, this seat unit 3 is pulled down to this positioning seat 21, this upper saddle 22 and is butted on this upper limit part 13rd, this lower limit part 14.

It is noted that this link spring 27 can be elastic rope form assembly or the spiral by rigid Assembly.

It is noted that this folds unit 2 also includes a hook rope seat 28 and a hook rope spring 29, by various locks Determine to design and compress or unclasp this hook rope spring 29 and this foot rest 12 can be locked in this expanded position with unlocking, here is not Repeat, in this collapsed position, this snap fit 315 hooks located at this hook rope seat 28.

Cooperation refering to Figure 11 it is worth mentioning at this point that, described pin joint seat group 25 also has two respectively and is arranged at described upper pivot Seat 251 and the stage clip 254 of described side seat 32, can allow described side seat 32 stably coat this foot rest 12 not in this collapsed position Rock.

By composition described above, effect of Foldable chair of the present invention and advantage can be summarized as follows：

First, using this foot rest 12, this folds unit 2 can be with respect to this mounting rod 11 in this expansion position with this seat unit 3 Put conversion and between this collapsed position, as long as user is singlehanded pulls this upper saddle 22, this folds unit will be towards this folding position Put, this seat unit 3 can automatically be drawn U-shaped and coat this foot rest 12 and fold unit 2 with this, thus having increase aesthetics And easy to operate advantage.

Two, simultaneously this foot rest 12 fold unit 2 with this and can be accommodated in this seat unit 3 respectively, also can effectively block This foot rest 12 folds the gap of each bar after unit 2 converts into this, it is to avoid because using accidentally causing user to crush to wait unexpected, going back Have functions that to improve safety in utilization.

3rd, this fold unit 2 member structure simple, only described folded rod 23 and described trace 24 can reach by Effect that this seat unit 3 folds, therefore manufacturing cost reduce, and described folded rod 23 is formed in one rather than multisection type pivot Connect, and structural strength can be increased.

It is noted that this support unit 1 can also be not provided with this foot rest 12 it is only necessary to uprightly consolidate this mounting rod 11 Located at ground, and make this lower limit part 14 that this positioning seat 21 is fixed on this mounting rod 11, in this kind of application, take face At right angles will intersect with this mounting rod 11 in this expanded position, by this change moreover it is possible to apply the present invention to bus, victory The mobile spaces such as fortune, motor boat, yacht, or the expansion seat use of the interior space such as station, department store, bar desk seat.

Claims

1. a kind of Foldable chair it is characterised in that：Comprise a support unit, one fold unit, an and seat unit, this Support unit includes a mounting rod, and this folds unit and include one and is sheathed on the positioning seat of this mounting rod, a slip cap located at this Mounting rod and be located at upper saddle above this positioning seat, two bottoms are connected to the folded rod of this positioning seat, and two contrary two End is connected to the trace of described folded rod and this upper saddle, and this seat unit includes a main seat, two and this master The side seat of seat pivot joint, and two tracks being located at described side bottom seat, this main seat has one and is articulated in cunning on this The inner end of seat, an outer end in contrast to this inner end, and two be located between this inner end and this outer end and in contrary Side edge part, one of lateral margin of described side seat is articulated in described side edge part respectively, and described track is used for for described receipts The sliding setting of pole top, this track has this outer end neighbouring and the expansion end points away from this main seat, and a neighbour This inner end nearly and the folding end points near this main seat, wherein, this folds unit can be with respect to this support with this seat unit Unit converts between an expanded position and a collapsed position, and in this expanded position, this main seat is with described side seat altogether Be located on angled with this mounting rod intersect take face, near this positioning seat, this positioning seat is fixed on this installation to this upper saddle Bar, described folded rod top is located at the expansion end points of described track, the outer end of described folded rod top and this main seat away from This mounting rod, in this collapsed position, this seat unit is U-shaped and coats this and folds unit, this upper saddle away from this positioning seat, Described folded rod, described trace mutually draw in close to this mounting rod, and described folded rod top is located at the folding of described track End points, and with the outer end of this main seat near this mounting rod.

2. Foldable chair as claimed in claim 1 it is characterised in that：This support unit also includes one and is fixed on this mounting rod Upper limit part, an and lower limit part being fixed on this mounting rod, when this expanded position, this upper saddle is butted on this upper limit Position part and no longer move down, this positioning seat is butted on this lower limit part and no longer moves down.

3. Foldable chair as claimed in claim 1 it is characterised in that：This support unit also include one can by the foot rest of folding, In this expanded position, this foot rest can support this mounting rod so that this mounting rod tiltedly stands on ground, and face of taking with this mounting rod is in Sharp angle, in this collapsed position, this foot rest is accommodated in this seat unit close to this mounting rod.

4. Foldable chair as claimed in claim 1 it is characterised in that：This positioning seat is sheathed on this mounting rod.

5. Foldable chair as claimed in claim 1 it is characterised in that：The mounting rod of this support unit has parallel interval and is arranged at Several chases of outer peripheral face.

6. Foldable chair as claimed in claim 1 it is characterised in that：This folds unit and also includes two and is respectively arranged at described receipts The pin joint seat group on pole top.

7. Foldable chair as claimed in claim 6 it is characterised in that：Described pin joint seat group is respectively provided with one and slippingly pivots It is arranged at the upper driven base on this track, and a lower trunnion mount being articulated in this upper driven base, this upper driven base and this interorbital are with two Abut each other the articulated part in the font of falling H to be pivotally connected to each other.

8. Foldable chair as claimed in claim 7 it is characterised in that：Described pin joint seat group also have respectively two be arranged at described Upper driven base and the stage clip of described track.

9. Foldable chair as claimed in claim 1 it is characterised in that：This main seat also includes two neighbouring described side edge part settings Guiding angle surface, described side seat includes the guiding angle surface of neighbouring described side edge part setting respectively.

10. Foldable chair as claimed in claim 1 it is characterised in that：This seat unit also includes one and is arranged at this main seat Torsion spring and between this upper saddle.

11. Foldable chairs as claimed in claim 1 it is characterised in that：This folds unit and also includes one and is connected to this positioning seat Link spring and this upper saddle between.

12. Foldable chairs as claimed in claim 1 or 2 it is characterised in that：This support unit also includes one to should positioning seat In this collapsed position and be arranged at the upper stop part on this mounting rod.

13. Foldable chairs as claimed in claim 3 it is characterised in that：This foot rest has two and is articulated in this and folds the upper of unit Foot lever, and two lower foot levers being articulated in foot lever respectively.

14. Foldable chairs as claimed in claim 13 it is characterised in that：This foot rest also have two ends be articulated in respectively described Upper foot lever folds the operating bar of unit with this.