TWM514793U - Three-dimensional office chair structure - Google Patents

Description

Three-dimensional space office chair structure

This creation relates to a three-dimensional space office chair structure, especially a 3D office chair which is integrally formed of a composite plastic material and is combined with a flexible adjuster.

According to the general office chair (10), as shown in FIG. 1A and FIG. 1B, it has a member such as a foot portion (11), a portion (12), a back portion (13) and an armrest (14); (12) is the core of the entire chair, because other components must be assembled with it.

However, the seat (12) of the conventional office chair (10) includes a metal plate (121), and the seat plate (122) is combined with the metal plate (121). In addition, the bottom must be welded or locked, combined with a fixing seat (123) for the tube (111) in the foot (11) to be combined; in addition, the metal plate (121) must be locked on both sides of the two connections The seat (124) is used for the jointing and fixing of the armrest (14); therefore, the whole seat portion is provided with a combination of various components, which is not only complicated to process, but lacks the overall feeling, and the overall strength is lowered, and further, the metal material is heavy. It is not lightweight, so there is still room for improvement.

Sub-press, the structure of the general plastic chair is light, but it is too simple and not comfortable; therefore, most of them are simple chairs for outdoor activities, and are not suitable as office chairs.

FIG. 2A and FIG. 2B are the patents of the US Patent No. 7,887,138, which discloses a body-formed seat structure of an office chair, the entire body 10a being integrally formed of a plastic material, comprising: an intermediate shaft The seat 101, a claw body 102, is formed by a plurality of curved support arms 103 formed by the outer periphery of the intermediate shaft base 101 as if extending upwardly in a claw shape, and a frame 104 is formed on each support of the claw body 102. The top surface of the arm 103. Therefore, the case is formed by the integrally formed seat portion 10a, which has a quick combination of various components for facilitating the office chair, and has good structural strength and a light overall feeling. However, it is checked that a plurality of curved support arms 103 of the case are distributed front, rear, left and right at the bottom of the frame 104, including the intermediate shaft seat. The rear side is also provided with two curved support arms 103, so that the seat frame 104 is rigidly fixed without any elasticity.

Also, U.S. Patent No. 7,637,570, issued toWilkhahn, discloses a chair having a seat and a seat mechanism, wherein the seat mechanism is independently supported on both sides by a support arm supported by a spring mechanism. The seat is secured to the support arm and one side of the seat can be moved independently of the other side of the seat when one side of the seat is deflected laterally. However, although the Wilkhahn patent has a left-right offset function, it is realized by a combination of a plurality of rigid support arms and a plurality of spherical hinges, and thus is structurally complicated.

The reason is that the main purpose of this creation is to provide a three-dimensional space office chair, which is a feature of the parent case, which can make the back frame and the seat frame traverse the left and right sides, and at the same time, the back frame can be tilted back. The three-dimensional spatial multi-directional slanting floating state allows the body to make various stretching changes, and has the comfortable feeling of extending as desired and infinitely extending.

In order to achieve the above objectives, the technical means adopted by the present invention comprises an integrally formed seat frame and an elastic adjuster; wherein the seat frame is composed of a tough composite plastic material, comprising: an intermediate shaft a seat having a coupling hole downwardly and a first convex body on the rear side; a plurality of curved support arms formed by the outer periphery of the intermediate shaft seat as if the claw is upward and extending forward; A frame is formed on the top surface of each of the support arms, and the frame has a front, a rear, a left, and a right side frame, and defines the first and second portions of the front portion centering on the intermediate shaft seat. a quadrant, and the third and fourth quadrants of the rear section, and the rear section of the frame and the intermediate axle seat are vacant without any support arms, and further, the third and the fourth of the rear section respectively The inner edges of the two end corners of the quadrant are respectively provided with a left and right curved body which is extended from the left side frame body and the right side frame body, and then extends upwards and backwards to the rear side frame body. The left and right curved body is formed in the rear portion of the frame An oblique left and right lower curved symmetrical structure; a second convex circular body corresponding to The first convex body is disposed at the center of the bottom edge of the rear side of the frame; a back frame is integrally formed with the bottom edge of the frame; the second handrail is integrally formed by the left and right sides of the frame The structure of the extension molding has an abutting surface formed at an upper end thereof, and the abutting surface extends to the both sides of the back frame; thereby forming an injection molded seat frame; and the elastic adjuster comprises: a first tube body a second tube body, and a spring disposed inside the first and second tube bodies; wherein the first and second tube systems are coupled to each other and can be axially telescopically displaced, and the first tube bottom tube a first cover body is disposed on the mouth, the first cover body is provided with a first concave hole relative to the first convex round body, and a second cover body is disposed on the upper end of the second pipe body. The second cover body is provided with a second concave hole relative to the second convex round body; accordingly, the first and second tubular bodies are axially stretched by the elastic force of the spring, and the first and second concave portions are The circular holes are respectively pivotally disposed on the first and second convex bodies to provide the rear side and the back frame of the frame frame, and have elastic supporting force, and When the back frame is pressed back to the spring, the first and second concave holes are respectively pivoted by the first and second convex bodies, and automatically expand and contract with the elevation angle of the back frame and adjust the angle; thereby, The back frame and the frame are centered on the intermediate shaft seat, and the left and right sides are horizontally moved, and the back frame can also be tilted back to form a floating state of multi-directional oblique deviation.

With the technical features of the above, the creation continues the characteristics of the parent case, and the entire seat frame is integrally formed, which makes it easy to assemble and light, and cooperates with the elastic adjuster so that the back of the chair can follow the user's body. The ergonomic design of the elevation and the automatic adjustment of the elevation angle makes the creation of the creation more comfortable. The case is further designed with ergonomics and exercise physiology. It uses the mechanical toughness of the material itself and the mechanical space design of the left and right traction. The back frame and the frame can be centered on the shaft seat, and the left and right sides are horizontally moved. The back frame can be tilted back to form a three-dimensional floating state with multiple orientations, and has a comfortable ride with unlimited and unlimited extension.

20‧‧‧Intermediate axle seat

21‧‧‧Combination hole

22‧‧‧First convex body

23‧‧‧foot tube

30‧‧‧Support arm

40‧‧‧ seat frame

40a‧‧‧ front side frame

40b‧‧‧Back side frame

40c‧‧‧left frame

40d‧‧‧right frame

41‧‧‧ vacated

42‧‧‧Second convex body

43‧‧‧First ring

44‧‧‧Seat

45L‧‧‧Left bending body

45R‧‧‧Right bending body

50‧‧‧ Back frame

51‧‧‧ reinforcing ribs

52‧‧‧second ring groove

53‧‧‧second ring

54‧‧‧Back body

55‧‧‧Installation holes

56‧‧‧Handrail

57‧‧‧Abutment

60‧‧‧elastic adjuster

61‧‧‧First tube

62‧‧‧Second body

63‧‧‧ Spring

64‧‧‧First cover

65‧‧‧First concave hole

66‧‧‧Second cover

67‧‧‧Second concave hole

70‧‧‧Seat skeleton

100‧‧‧Integrated 3D office chair

Figure 1A is an exploded perspective view of a conventional office chair.

Figure 1B is a perspective view of a combination of a conventional office chair.

Figure 2A is a perspective view of the structure of U.S. Patent No. 7,887,138.

Figure 2B is a top plan view of U.S. Patent No. 7,887,138.

Figure 3 is a perspective view of the seat frame integrally formed with the back and the seat.

Fig. 4 is another perspective view of the seat frame integrally formed with the back and the seat.

Fig. 5A is a side view of the seat frame integrally formed with the back and the seat of the present invention.

Fig. 5B is a bottom view of the seat frame integrally formed with the back and the seat of the present invention.

Figure 5C is a rear view of the seat frame integrally formed with the back and the seat of the present invention.

Fig. 6 is a perspective view of the combination of the seat frame and the seat surface of the present invention.

Figure 7 is a schematic view of the combination of the seat frame and the elastic adjuster of the present invention.

Figure 8 is a cross-sectional view of the main construction of the present invention, showing the back of the chair leaning forward and spring strutting.

Figure 9 is a cross-sectional view of the main construction of the present invention showing the back of the seat back and the spring contracted.

Figure 10A is a top view of the present creation.

Figure 10B is a back view of the present creation.

Figure 11 is a state reference diagram used in one of the creations.

First, referring to FIG. 3 to FIG. 11 , a preferred embodiment of the present integrated 3D office chair 100 includes an integrally formed seat frame 70 and an elastic adjuster 60; wherein the seat frame 70 is 70 In particular, it is composed of a tough composite plastic material, comprising: an intermediate shaft seat 20 having a coupling hole 21 downwardly, and a first convex body 22 on the rear side; a plurality of curved support arms 30, It is formed by the outer periphery of the intermediate shaft seat 20 as if it is claw-shaped upward and forward. In this embodiment, the coupling hole 21 of the intermediate shaft seat 20 is for the foot tube of the office chair 23 to be nested from bottom to top. Positioning (shown in Figure 7).

A frame 40 is formed on the top surface of each of the support arms 30. In this embodiment, between the bottom edge of the rear portion of the frame frame 40 and the intermediate shaft base 20, a vacant shape 41 without the support arm 30 is formed. It has flexibility and a first annular groove 42 is formed on the frame surface. 5A, 5B, 5C and FIGS. 10A and 10B, the frame 40 has front, rear, left and right four side frames 40a, 40b according to the top view of FIG. 10A. 40c, 40d, and defining the first and second quadrants of the front section (before YY) and the third and fourth quadrants of the rear section (before YY) centering on the intermediate shaft base 20, and the frame Between the rear portion of the 40 and the intermediate axle housing 20, there is a vacant shape 41 without any support arm 30, wherein FIG. 5B is used to disclose a bottom view of the elastic adjuster 60 that has not been installed. Furthermore, the inner edges of the two end corners of the third and fourth quadrants of the rear portion are respectively provided with a left side frame 40c and a right side frame 40d extending downward and inwardly, and then upward. The left and right curved receiving bodies 45L, 45R extending rearward to the rear side frame body 40d are formed such that the left and right curved receiving bodies 45L, 45R form two oblique left and right curved shapes at the rear portion of the seat frame 40. Symmetrical structure; the shape of the left and right curved holding bodies 45L, 45R is like two curved arms, so that the left and right side frames 40c, 40d can be pulled and pulled by each other, after the seat frame 40 is offset and deformed, The original shape can be restored by the fact that the frame 40 itself is composed of a tough composite plastic material.

A second convex body 42 is disposed at the center of the bottom edge of the rear side of the seat frame 40 corresponding to the first convex body 22. A back frame 50 has a bottom edge integrally formed with the rear side of the frame frame 40. In this embodiment, the back frame 50 is integrally formed with a reinforcing rib 51 at the same time, and a second ring is formed on the frame surface. Ditch 52. The two armrests 56 are integrally formed by extending the left and right sides of the frame 40 upwardly, and an abutting surface 57 is formed at an upper end thereof, and the abutting surface 57 extends rearward to both sides of the back frame 50; A molded seat frame 70 is fired.

As shown in FIG. 3 and FIG. 6, a first ring 43 is formed in cooperation with the first ring groove 42 and can be embedded in the first ring groove 42 for the face body. The periphery of 44 is fixed at the first Inside the annular groove 42. A second ring 53 is formed in the second ring groove 52 and can be embedded in the second ring groove 52 for fixing the periphery of a back body 54 to the second ring. In the present embodiment, the seat surface body 44 and the back surface body 54 constituting the seat surface are composed of a mesh body, but are not limited thereto; and one of the cloth body and the plastic body or a combination thereof may be used. Implementation.

The creation-integrated 3D office chair 100, in addition to the structure of the injection-molded seat frame 70 described above, further has an elastic adjuster 60 as a support strength and cushioning elasticity. As shown in FIG. 8 and FIG. 9 , the elastic adjuster 60 includes a first tubular body 61 , a second tubular body 62 , and a spring 63 disposed inside the first and second tubular bodies; The first and second tubular bodies 61 and 62 are coupled to each other and can be axially stretched and displaced, and a first cover 64 is disposed on the bottom of the first tubular body 61. The first cover 64 is opposite to the first convex body. The circular body 22 is provided with a first concave hole 65. Further, a second cover 66 is disposed on the upper end of the second tubular body 62. The second cover 66 is provided with respect to the second convex body 42. a second concave hole 67, according to which the first and second tubular bodies 61, 62 are axially stretched by the elastic force of the spring 63, and the first and second concave circular holes 66, 67 are respectively supported by the pivot The first and second convex bodies 22 and 42 are disposed to provide the rear side and the back frame 50 of the frame 40, and have support strength and cushioning elasticity, and are compressed to the spring 63 when the back frame 50 is tilted back. The first and second concave holes 66 and 67 are respectively rotated by the first and second convex bodies 22 and 42 , and the angle is automatically adjusted according to the elevation angle of the back frame 50 . 8 shows that the spring 63 of the elastic adjuster 60 is axially stretched to tilt the back frame 50 forward, and FIG. 9 shows that when the back of the user is tilted back, the spring 63 is axially contracted, and the first The two concave circular holes 66 and 67 respectively pivot on the first and second convex bodies 22 and 42 to automatically expand and contract and adjust the angle.

Since the seat frame 70 of the present invention can be integrally formed by a resilient plastic composite material, the back frame 50 is still flexible after the bottom edge of the back frame 50 is integrally formed with the rear side of the frame 40. Therefore, the elastic adjuster 60 can be used as the support strength and the cushioning elasticity to achieve the synergistic stability and comfort.

More importantly, the case uses the seat bone with the concept of ergonomics and exercise physiology. The frame 70 is integrally formed of a composite plastic material, and is matched with an elastic adjuster 60, and the mechanical space design of the elastic toughness of the material itself and the left and right mutual traction is utilized, so that, besides shown in FIG. 7, the back frame 50 can be tilted back, Further, the vacant shape 41 without any support arm 30 is displayed between the rear portion of the frame 40 and the intermediate shaft base 20, and the mechanical mechanism of each of the left and right curved retaining bodies 45L, 45 is respectively disposed at the rear portion. Therefore, the creation can be as shown in FIG. 11. When the user's body is shifted to the right or left, the back frame 50 and the frame 40 can be horizontally moved with the left and right sides as the center. At the same time, as shown in FIG. 7, the back frame 50 can be tilted back to form a three-dimensional floating state with a multi-directional oblique deviation, and has a ride comfort that is arbitrary and infinitely extended.

The reason why the creation can achieve the three-dimensional spatial multi-directional slanting floating state is designed by the mechanical support structure of the seat frame 70, so that the integrally formed plastic material can be compounded by adding elastic materials. It can reach the floating state of three-dimensional space multi-directional oblique deviation. If there is no mechanical support structure design, even if the seat frame 70 is compounded with materials with elastic toughness, the above effect cannot be achieved because it will not deform after a deflection. Restore. Therefore, the creation must include: [the seat frame 70 is integrally formed of a composite plastic material] + [the vacant shape of the support arm 30 between the rear portion of the frame 40 and the intermediate shaft seat 40] + [left The spatial combination structure of the right curved pinning body 45L, 45R] + [elastic adjuster 60] can obtain a floating state in which the three-dimensional space is multi-directionally inclined. Therefore, this creation adds a left-right offset function to the parent case, and compared with the complexity of the left and right offset mechanism of the prior art, the composition of the creation is more compact and more suitable for use with the posture of the human body. Offset, with the effect of humanized use.

In summary, the structure revealed by this creation is unprecedented, and it can achieve the improvement of efficacy, and it can be used for industrial utilization. It fully complies with the new patent requirements, and invites the bureau to grant patents to encourage innovation. There is no sense of morality.

However, the drawings and descriptions disclosed above are only preferred embodiments of the present invention. Modifications or equivalent changes made by those skilled in the art in accordance with the spirit of the case should still be included. This case is within the scope of patent application.

20‧‧‧Intermediate axle seat

40‧‧‧ seat frame

45L‧‧‧Left bending body

45R‧‧‧Right bending body

50‧‧‧ Back frame

60‧‧‧elastic adjuster

70‧‧‧Seat skeleton

100‧‧‧Integrated 3D office chair

Claims (5)

A three-dimensional space office chair structure comprises an integrally formed seat frame and an elastic adjuster; wherein the seat frame is composed of a tough composite plastic material, comprising: an intermediate shaft seat, The lower portion has a coupling hole, and the rear side is provided with a first convex circular body; a plurality of curved support arms are formed by the outer periphery of the intermediate shaft seat, which is formed like a claw-shaped upward and forward extension; Formed on the top surface of each of the support arms, wherein the frame has a front, rear, left, and right four-sided frame, and defines the first and second quadrants of the front portion centering on the intermediate shaft seat, and The third and fourth quadrants of the rear section, and the rear section of the frame and the intermediate axle seat are vacant without any support arms, and further, two of the third and fourth quadrants of the rear section respectively The inner edges of the end corners are respectively provided with a left and right curved restraint body extending from the left side frame body and the right side frame body downwardly and inwardly, and then extending upwards and backwards to the rear side frame body, so that the left side The right curved body forms two oblique directions at the rear portion of the frame a left and right lower curved symmetrical structure; a second convex body corresponding to the first convex body disposed at the center of the bottom edge of the rear side of the frame; a back frame whose bottom edge is connected to the rear side of the frame The two handrails are integrally formed by extending the left and right sides of the frame upwardly, and an abutting surface is formed on the upper end thereof, and the abutting surface extends to the two sides of the back frame; a molded seat frame; and the elastic adjuster comprises: a first pipe body, a second pipe body, and a spring disposed inside the first and second pipe bodies; wherein the first and second pipe systems Cooperating with each other and being axially telescopically displaceable, and a first cover body is disposed on the bottom nozzle of the first pipe body, and the first cover body is provided with a first concave hole relative to the first convex round body, and a second cover is disposed on the upper end of the second tubular body, and the second cover is provided with a second concave hole relative to the second convex body; accordingly, the first and second tubular bodies are The spring force of the spring And axially strutting, and the first and second concave circular holes are respectively pivotally disposed on the first and second convex bodies to provide the rear side and the back frame of the frame frame, and have elastic supporting force, and When the back frame is compressed back to the spring, the first and second concave holes respectively pivot with the first and second convex bodies, and automatically expand and contract with the elevation angle of the back frame and adjust the angle; The back frame and the frame are centered on the intermediate shaft seat, and the left and right sides are horizontally moved, and the back frame can also be tilted back to form a floating state of multi-directional oblique deviation. The third-degree space office chair structure according to the first aspect of the invention, wherein the frame surface of the frame is provided with a first annular groove; the frame of the back frame is provided with a second annular groove; The first ring is formed by the first annular groove, and the first ring groove is embedded in the first annular groove to fix the periphery of the planar body in the first annular groove; The second ring is formed by the second annular groove, and can be embedded in the second annular groove to fix the periphery of a back body in the first annular groove. The three-dimensional space office chair structure according to claim 2, wherein the seat body and the back body comprise: one of a mesh body, a cloth body and a plastic body or a combination thereof. The three-dimensional space office chair structure according to claim 2, wherein the back frame is integrally formed with a reinforcing rib at the same time. For example, the three-degree space office chair structure described in claim 1 is characterized in that the joint hole of the intermediate shaft seat is for positioning the middle tube of the office chair from the bottom to the top.