CN115670153A - Folding chair - Google Patents
Folding chair Download PDFInfo
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- CN115670153A CN115670153A CN202211323040.0A CN202211323040A CN115670153A CN 115670153 A CN115670153 A CN 115670153A CN 202211323040 A CN202211323040 A CN 202211323040A CN 115670153 A CN115670153 A CN 115670153A
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- folding chair
- lower hinge
- folding
- hinge
- support
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- 238000003780 insertion Methods 0.000 claims description 25
- 230000037431 insertion Effects 0.000 claims description 25
- 239000004744 fabric Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 235000021178 picnic Nutrition 0.000 description 1
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Abstract
The invention provides a folding chair which comprises an upper hinged seat, a plurality of supporting legs, a lower hinged seat and a plurality of upper supporting rods. When the folding chair is in the unfolding state, the lower ends of the supporting legs are unfolded relatively, and the upper ends of the upper supporting rods are unfolded relatively; when the folding chair is in the folding state, the lower end parts of the supporting legs are close to each other, the upper end parts of the upper supporting rods are close to each other, and the upper hinged seat and the lower hinged seat are relatively far away. The lower hinge base having a first lower hinge section and a second lower hinge base section, the first lower hinge section being higher than the second lower hinge section; the plurality of upper support rods comprise front support rods and back support rods, the lower end portions of the front support rods are rotatably connected with the first lower hinge portions, and the lower end portions of the back support rods are rotatably connected with the second lower hinge portions. The folding chair of the invention is more in line with the ergonomics and has better comfort.
Description
Technical Field
The invention belongs to the field of outdoor articles, and relates to a folding chair.
Background
The folding chair has the characteristics of folding and convenient carrying, and is applied to outdoor activities such as camping and picnic. The folding chair generally comprises a foldable chair frame and a cloth cover arranged on the chair frame, wherein the cloth cover is propped open by the chair frame to support a human body. The chair frame typically includes a plurality of pivotally connected links that allow for relative unfolding and folding. To improve the comfort of the seat, the seat frame may further include a back rest bar. However, in the conventional folding chair, the folding volume requirement of the chair frame is limited, the angle setting of the backrest rod is not reasonable enough, and the comfort is poor.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide an improved folding chair, which has a small folding volume, and the angle setting of the front supporting rod and the back supporting rod is ergonomic and comfortable.
In order to achieve the purpose, the invention adopts a technical scheme as follows:
a folding chair having an unfolded state and a folded state, the folding chair comprising:
an upper hinge base;
a plurality of support legs having upper ends rotatably connected to the upper hinge seats and lower ends for supporting on the ground, respectively;
a lower hinge base located below the upper hinge base;
the lower end part of each upper supporting rod is rotatably connected with the lower hinge seat;
the middle part of each supporting leg is also rotatably connected with a corresponding upper supporting rod; when the folding chair is in the unfolding state, the lower ends of the supporting legs are unfolded relatively, and the upper ends of the upper supporting rods are unfolded relatively; when the folding chair is in the folded state, the lower end parts of the plurality of supporting legs are close to each other, the upper end parts of the plurality of upper supporting rods are close to each other, and the upper hinge seat and the lower hinge seat are relatively far away;
the lower hinge mount having a first lower hinge and a second lower hinge, the first lower hinge being higher than the second lower hinge; the plurality of upper support rods comprise front support rods and back support rods, the lower end portions of the front support rods are rotatably connected with the first lower hinge portions, and the lower end portions of the back support rods are rotatably connected with the second lower hinge portions.
Preferably, an included angle between the front support rod and the horizontal plane is smaller than an included angle between the back support rod and the horizontal plane.
In a preferred embodiment, the plurality of support legs and the plurality of upper support poles are staggered.
In a preferred embodiment, only one said first lower hinge or one said second lower hinge is provided between two adjacent support legs.
In a preferred embodiment, the front stay, the back stay or the support leg is a telescopic rod.
More preferably, the front stay bar comprises two bar members which are sleeved and can relatively extend and retract; the backrest rod comprises three sleeved rod pieces which can relatively stretch out and draw back; the supporting leg comprises two rod pieces which are sleeved with each other and can relatively stretch out and draw back.
More preferably, the upper hinge base includes a plurality of upper hinge portions extending radially outwardly, and the plurality of upper hinge portions are spaced apart in a circumferential direction.
Further, the first lower hinge or the second lower hinge is located between two adjacent upper hinges in a top view.
Further, the orthographic projection of the upper hinge seats on the horizontal plane forms a graph with axial symmetry. For example a cross.
Furthermore, the orthographic projection of the first lower hinge part and the second lower hinge part on the horizontal plane forms a figure which is centrosymmetric and not axisymmetric.
Preferably, the folding chair is folded such that the upper hinge seat and the lower hinge seat are separated from each other.
In a specific and preferred embodiment, a connecting rod is arranged on one of the upper hinge seat and the lower hinge seat, and the other one is detachably connected with the connecting rod; when the folding chair is in an unfolded state, the connecting rod is connected between the upper hinged seat and the lower hinged seat; when the folding chair is in a folding state, the connecting rod is separated from the upper hinged seat or the lower hinged seat.
More preferably, the upper hinge seat or the lower hinge seat is provided with an insertion groove for the connecting rod to be inserted into; when the folding chair is in an unfolded state, one end part of the connecting rod is inserted into the insertion groove; when the folding chair is in a folding state, the connecting rod is separated from the insertion groove.
In another specific and preferred embodiment, when the folding chair is in the unfolded state, the upper hinge seat and the lower hinge seat abut against each other; when the folding chair is in a folding state, the upper hinged seat and the lower hinged seat are separated.
More preferably, one of the upper hinge seat and the lower hinge seat is provided with an insertion groove, and the other part is provided with an insertion part; when the folding chair is in an unfolded state, the insertion part is inserted into the insertion groove; when the folding chair is in a folding state, the insertion part is separated from the insertion groove.
Further, a foot pad is provided at a lower end portion of each of the support legs, the foot pad having a support surface, and the support surfaces of the foot pads are located in the same plane when the folding chair is in the unfolded state.
In a preferred embodiment, the upper strut has a connecting sleeve, which is rotatably connected to the supporting leg.
Compared with the prior art, the invention has the following advantages by adopting the scheme:
according to the folding chair, the first lower hinged part and the second lower hinged part are arranged in a staggered manner (the first lower hinged part is higher than the second lower hinged part), and the inclination angle of the backrest rod is smaller (namely, the backrest rod is closer to a vertical surface), so that the back of a user can be better supported; the inclination angle of the front support rod is larger (namely, the front support rod is closer to the horizontal plane), and the distance between the front support rod and the backrest rod is increased; the folding is convenient, the volume is small after the folding, the human engineering is met, and the use comfort is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 shows a perspective view of a folding chair according to embodiment 1 of the invention in an unfolded state, in which the front stay, the back rest bar and the support legs are not retracted;
FIG. 2 is a perspective view showing a folding chair according to embodiment 1 of the present invention in an unfolded state in which the front and back support bars are not contracted and the support legs are contracted;
FIG. 3 is a sectional view showing a folding chair according to embodiment 1 of the present invention in an unfolded state;
FIG. 4 shows a cross-sectional view of a folding chair according to embodiment 1 of the invention in a folded state, in which the support legs are not collapsed;
figure 5 shows a perspective view of a folding chair according to embodiment 1 of the invention in a folded state;
fig. 6 is a perspective view showing a folding chair according to embodiment 2 of the present invention in an unfolded state in which the front stay, the back rest bar and the support legs are not contracted;
FIG. 7 is a perspective view showing a folding chair in an unfolded state in which the front and back support bars are not contracted and the supporting legs are contracted according to embodiment 2 of the present invention;
FIG. 8 is a sectional view showing a folding chair according to embodiment 2 of the present invention in an unfolded state;
figure 9 shows a cross-sectional view of a folding chair according to embodiment 2 of the invention in a folded position, in which the support legs are not collapsed.
Wherein,
11. an upper hinge base; 111. an upper hinge portion; 12. supporting legs; 121. an upper end portion; 13. a lower hinge base; 131. a first lower hinge; 132. a second lower hinge; 14. an upper support rod; 141. a front stay bar; 142. a back rest rod; 143. connecting sleeves; 15. a rod member;
2. a connecting rod;
3. a foot pad; 31. a support surface.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more readily understood by those skilled in the art. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
Referring to fig. 1 to 5, the present embodiment provides a folding chair for outdoor use, which has an unfolded state as shown in fig. 1 and a folded state as shown in fig. 5. This folding chair includes: an upper hinge seat 11, a plurality of support legs 12, a lower hinge seat 13 and a plurality of upper struts 14. The folding chair also includes a cloth cover that is attached to the plurality of upper struts 14. When the folding chair is in the unfolding state, the cloth cover is unfolded by the plurality of upper supporting rods 14 so as to support the human body.
Further, the upper hinge base 11 includes a plurality of upper hinge portions 111 extending radially outward, and the plurality of upper hinge portions 111 are spaced apart from each other in a circumferential direction of the upper hinge base 11. Each of the support legs 12 has an upper end 121 rotatably coupled to the upper hinge base 11 and a lower end for supporting on the ground. The lower hinge base 13 is located below the upper hinge base 11. The lower end of each upper strut 14 is rotatably connected to the lower hinge base 13. The middle part of each supporting leg 12 is also respectively and rotatably connected with a corresponding upper supporting rod 14, and a plurality of supporting legs 12 and a plurality of upper supporting rods 14 are arranged in a staggered mode. Specifically, the upper support rod 14 is provided with a connecting sleeve 143, and the connecting sleeve 143 is rotatably connected with the support leg 12.
Further, referring to fig. 1 and 2, the lower hinge base 13 has a first lower hinge 131 and a second lower hinge 132, the first lower hinge 131 is higher than the second lower hinge 132, only one first lower hinge 131 or one second lower hinge 132 is disposed between two adjacent support legs 12, and the first lower hinge 131 or the second lower hinge 132 is located between two adjacent upper hinges 111 in a top view.
The plurality of upper struts 14 include two front struts 141 and two back struts 142, a lower end portion of each front strut 141 is rotatably connected to the first lower hinge 131, and a lower end portion of each back strut 142 is rotatably connected to the second lower hinge 132, so that the front strut 141 is inclined to a lesser extent than the back strut 142, which is more ergonomic and comfortable when the folding chair is used.
It should also be noted that: an upper receiving groove is formed between any two adjacent upper hinge parts 111, and after the folding chair is folded, the upper support rod 14 approaches the upper hinge seat 11 and is received in the upper receiving groove; similarly, lower receiving grooves are formed between the adjacent first lower hinge portions 131, between the adjacent second lower hinge portions 132, and between the first lower hinge portions 131 and the second lower hinge portions 132, respectively, and the support legs 12 are approached to the upper hinge seats 11 and received in the lower receiving grooves after the folding chair is folded. Furthermore, the above-mentioned "rotational connection" is in particular a pivotal connection.
The lower end of each support leg 12 is provided with a foot pad 3, the foot pad 3 having a support surface 31, the support surface 31 preferably being planar. The support surface 31 of each foot pad 3 lies in the same plane (preferably a horizontal plane) when the folding chair is in the unfolded state.
Each front stay 141, back rest bar 142, or support leg 12 is an expansion link. Specifically, referring to fig. 1, the front support rod 141 includes two sleeved rods 15 capable of relatively extending and retracting, the back support rod 142 includes three sleeved rods 15 capable of relatively extending and retracting, and the support leg 12 includes two sleeved rods 15 capable of relatively extending and retracting, so that the height of the folding chair can be adjusted adaptively, and the folding chair is small in size after being folded and stored.
Referring to fig. 3 and 4, one of the upper hinge base 11 and the lower hinge base 13 is provided with a link 2, and the other is detachably coupled with the link 2. In the present embodiment, the connecting rod 2 is disposed on the upper hinge base 11, and the lower hinge base 13 is detachably connected to the connecting rod 2. For example, the lower hinge base 13 is provided with an insertion groove into which the lower end portion of the link 2 is detachably inserted. When the folding chair is in an unfolded state, the lower end part of the connecting rod 2 is inserted into the insertion groove; when the folding chair is in a folding state, the lower end part of the connecting rod 2 is separated from the inserting groove.
When the folding chair is in an unfolded state, the lower ends of a plurality of supporting legs 12 are oppositely unfolded, the upper ends of a plurality of upper supporting rods 14 are oppositely unfolded, and a connecting rod 2 is connected between an upper hinged seat 11 and a lower hinged seat 13; specifically, the lower end of the connecting rod 2 is inserted into the insertion slot of the lower hinge base 13. When the folding chair is in a folding state, the lower end parts of a plurality of supporting legs 12 are close to each other, the upper end parts of a plurality of upper supporting rods 14 are close to each other, the connecting rod 2 is separated from the lower hinged seat 13, and the upper hinged seat 11 is relatively far away from the lower hinged seat 13; specifically, the lower end portion of the link 2 is disengaged from the insertion groove of the lower hinge base 13.
The number of the supporting legs 12 and the number of the upper supporting rods 14 in the embodiment are four, the upper supporting rods 14 and the supporting legs 12 are respectively provided with a rod piece 15 which can be sleeved and can relatively extend, the folding chair has a small volume after being extended and folded, and the packaging size is reduced; the upper hinged seat 11 and the lower hinged seat 13 are arranged at the center of the folding chair, the supporting legs 12 and the upper support rods 14 are respectively connected, the plurality of supporting legs 12 and the plurality of upper support rods 14 are arranged in a staggered mode, namely one upper support rod 14 is accommodated between every two supporting legs 12, the space is reasonably utilized, and the folded size is small; the connecting rod 2 is arranged on the upper hinge seat 11, the lower hinge seat 13 is detachably connected with the connecting rod 2, and the connecting rod 2 is connected between the upper hinge seat 11 and the lower hinge seat 13 in an unfolded state, so that the structural stability is better; the first lower hinge part and the second lower hinge part are arranged in a staggered manner, and the inclination angle of the backrest rod is smaller (namely, the backrest rod is closer to a vertical surface), so that the back of a user can be better supported; the inclination angle of the front stay bar is larger (namely, is closer to the horizontal plane), the distance between the front stay bar and the backrest bar is increased, and the use comfort is improved.
When the folding chair of the embodiment is in the unfolding state, the lower end parts of the supporting legs 12 are unfolded relatively, the upper end parts of the upper supporting rods 14 are unfolded relatively, the connecting rod 2 is connected between the upper hinged seat 11 and the lower hinged seat 13, when the folding chair is turned from the unfolding state to the folding state, the upper hinged seat 11 is pulled upwards, the supporting legs 12 and the upper supporting rods 14 can be turned over along with the upper hinged seat 11 (as shown in figure 4), then the rod members 15 of the supporting legs 12 and the upper supporting rods 14 are contracted to the state shown in figure 5, and the folded and stored volume is small.
Example 2
The present example differs from example 1 in that: the upper hinge base 11 and the lower hinge base 13 are not directly connected by any rod, and the other steps are basically the same as those of the embodiment 1. Referring to fig. 6 to 9, the upper hinge base 11 extends downward at a middle portion thereof, the lower hinge base 13 extends upward at a middle portion thereof, and there is no connecting member between the upper hinge base 11 and the lower hinge base 13 except for the plurality of upper struts 14 and the plurality of support legs 12. When the folding chair is in the unfolded state as shown in fig. 8, the upper hinge seat 11 and the lower hinge seat 13 abut against each other, more specifically, the middle portion of the upper hinge seat 11 and the middle portion of the lower hinge seat 13 abut against each other; the folding chair is in a folded state as shown in fig. 9, the upper hinge seat 11 and the lower hinge seat 13 are separated.
In other embodiments, the middle of the upper hinge base 11 extends downward and is provided with a plug groove, and the middle of the lower hinge base 13 extends upward to form a plug part. When the folding chair is in an unfolded state, the insertion part is inserted into the insertion groove above the folding chair; when the folding chair is in a folding state, the insertion part is separated from the insertion groove.
As used in this specification and the appended claims, the terms "comprises" and "comprising" are intended to only encompass the explicitly identified steps and elements, which do not constitute an exclusive list, and that a method or apparatus may include other steps or elements. As used herein, the term "and/or" includes any combination of one or more of the associated listed items.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the components of the present invention with respect to each other in the drawings.
It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another, and do not indicate a particular order or degree of importance. Indeed, the terms "first," "second," etc. are used interchangeably throughout. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are preferred embodiments, which are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the principles of the present invention should be covered within the scope of the present invention.
Claims (11)
1. A folding chair having an unfolded state and a folded state, the folding chair comprising:
an upper hinge base;
a plurality of support legs having upper ends rotatably connected to the upper hinge seats and lower ends for supporting on the ground, respectively;
a lower hinge base located below the upper hinge base;
the lower end part of each upper supporting rod is rotatably connected with the lower hinge seat;
the middle part of each supporting leg is also rotatably connected with a corresponding upper supporting rod; when the folding chair is in the unfolding state, the lower end parts of the plurality of supporting legs are unfolded relatively, and the upper end parts of the plurality of upper supporting rods are unfolded relatively; when the folding chair is in the folded state, the lower end parts of the plurality of supporting legs are close to each other, the upper end parts of the plurality of upper supporting rods are close to each other, and the upper hinge seat and the lower hinge seat are relatively far away;
the lower hinge base is provided with a first lower hinge part and a second lower hinge part, and the first lower hinge part is higher than the second lower hinge part; the plurality of upper support rods comprise front support rods and back support rods, the lower end portions of the front support rods are rotatably connected with the first lower hinge portions, and the lower end portions of the back support rods are rotatably connected with the second lower hinge portions.
2. The folding chair as claimed in claim 1, wherein the angle between the front stay and the horizontal plane is smaller than the angle between the back stay and the horizontal plane.
3. The folding chair as claimed in claim 1, wherein the plurality of support legs and the plurality of upper support rods are staggered, and only one first lower hinge portion or one second lower hinge portion is provided between adjacent two support legs.
4. The folding chair as in claim 1, wherein said upper hinge base includes a plurality of radially outwardly extending upper hinge portions spaced circumferentially; the first lower hinge or the second lower hinge is located between two adjacent upper hinges in a top view; the figure formed by orthographic projections of the upper hinge seats on the horizontal plane is axisymmetric, and the figure formed by orthographic projections of the first lower hinge parts and the second lower hinge parts on the horizontal plane is centrosymmetric and not axisymmetric.
5. The folding chair as claimed in claim 1, wherein a link is provided on one of the upper and lower hinge seats, and the other is detachably connected to the link; when the folding chair is in an unfolded state, the connecting rod is connected between the upper hinged seat and the lower hinged seat; when the folding chair is in a folding state, the connecting rod is separated from the upper hinged seat or the lower hinged seat.
6. The folding chair as claimed in claim 5, wherein the upper hinge seat or the lower hinge seat is provided with a slot for inserting the connecting rod; when the folding chair is in an unfolded state, one end part of the connecting rod is inserted into the insertion groove; when the folding chair is in a folding state, the connecting rod is separated from the insertion groove.
7. The folding chair as claimed in claim 1, wherein the upper and lower hinge seats abut each other when the folding chair is in the unfolded state; when the folding chair is in a folding state, the upper hinged seat and the lower hinged seat are separated.
8. The folding chair as claimed in claim 7, wherein one of the upper and lower hinge seats is provided with an insertion groove, and the other is provided with an insertion part; when the folding chair is in an unfolded state, the insertion part is inserted into the insertion groove; when the folding chair is in a folding state, the insertion part is separated from the insertion groove.
9. The folding chair as claimed in claim 1, wherein a foot pad is provided at a lower end of each of the support legs, the foot pad having a support surface, the support surfaces of the foot pads being in the same plane when the folding chair is in the unfolded state.
10. The folding chair as claimed in claim 1, wherein the front stay, the back stay or the support leg is a telescopic rod.
11. The folding chair as claimed in claim 1, wherein the upper support rod has a connecting sleeve, and the connecting sleeve is rotatably connected to the support leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211323040.0A CN115670153A (en) | 2022-10-27 | 2022-10-27 | Folding chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211323040.0A CN115670153A (en) | 2022-10-27 | 2022-10-27 | Folding chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115670153A true CN115670153A (en) | 2023-02-03 |
Family
ID=85099897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211323040.0A Pending CN115670153A (en) | 2022-10-27 | 2022-10-27 | Folding chair |
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| Country | Link |
|---|---|
| CN (1) | CN115670153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087379A1 (en) * | 2022-10-27 | 2024-05-02 | 蔚孜电子商务（上海）有限公司 | Foldable chair |
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2022
- 2022-10-27 CN CN202211323040.0A patent/CN115670153A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087379A1 (en) * | 2022-10-27 | 2024-05-02 | 蔚孜电子商务（上海）有限公司 | Foldable chair |
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Country or region after: China Address after: Room 230A, Building 269, No. 3663 Zhongshan North Road, Putuo District, Shanghai, 200333 Applicant after: Weizi e-commerce (Shanghai) Co.,Ltd. Address before: 200000 room 214b, building 358, No. 3663, Zhongshan North Road, Putuo District, Shanghai Applicant before: Weizi e-commerce (Shanghai) Co.,Ltd. Country or region before: China |