A chair with stackable wheel members
By incorporating wheel components into the chair design, the problems of chair tipping and stacking during transportation are solved, achieving both safety and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KRUEGER INTERNATIONAL INC
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-31
AI Technical Summary
The chair is prone to tipping over when the user leans back, posing a danger to the user, and requires additional trolleys for stacking and transporting, increasing costs and space requirements.
A chair with wheel components has been designed, including a seat, backrest, support frame, upright legs, basic legs and curved connecting parts. The wheels are connected by wheel brackets to prevent the chair from tipping over and to allow stacking and movement.
The chair is not easy to tip over when the user leans back, and it is easy to stack and move. It can be transported without additional tools, reducing transportation costs and space requirements.
Smart Images
Figure CN224572438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of chairs, and more specifically, to a stackable chair with wheel components. Background Technology
[0002] Currently, in some chair configurations, when a user applies a backward tilting force to the backrest, the chair may tilt and the front legs may push forward, causing the chair to tilt and detach from the floor. This tilting could lead to the chair tipping backward, posing a danger to the user. Furthermore, moving stacked chairs on a daily basis typically requires a suitable trolley for transport, increasing both transportation and space costs. Utility Model Content
[0003] In view of the above-mentioned technical problems in related technologies, the present invention provides a stackable chair with wheel components, which can solve the above problems.
[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows: A stackable chair with wheel components includes a seat, a backrest on one upper side of the seat, a support frame connected to the bottom of the seat, a transverse support member, a support connector connected to the bottom of the seat in the middle of the transverse support member, support leg assemblies symmetrically arranged at both ends of the transverse support member, each support leg assembly including an upright leg, the upper end of the upright leg connected to the transverse support member, the lower end of the upright leg connected to a base leg, a curved connection between the upright leg and the base leg, the curved connection connecting a wheel via a wheel bracket, and an anti-slip pad at the front end of the base leg.
[0005] Furthermore, the seat and the backrest are an integral structure.
[0006] Furthermore, the bottom of the chair seat is provided with a seat cover, and the support connector is fixedly connected between the seat cover and the chair seat.
[0007] Furthermore, the upright leg, the basic leg, and the curved connecting part are all hollow metal tubes, and the upright leg, the basic leg, and the curved connecting part form an L-shaped structure, with the included angle between the upright leg and the basic leg being less than 90°.
[0008] Furthermore, a front cover is connected to the front end of the basic leg, and the anti-slip pad is connected to the bottom of the front cover.
[0009] Furthermore, the rear ends of the curved connecting part are respectively provided with connecting hole one and connecting hole two for connecting the wheel bracket, and the wheel bracket is connected to the curved connecting part by bolts.
[0010] Furthermore, the wheel bracket includes a frame, which includes a mounting curved surface located on the front side and matching the curved connection part, a lower plane located at the bottom, and an outer contour surface located on the rear side. A third connection hole adapted to the first connection hole is provided on the lower plane, and a fourth connection hole adapted to the second connection hole is provided on the outer contour surface. A shaft hole is provided in the middle of the frame.
[0011] Furthermore, a rotating shaft is inserted through the shaft hole, and a wheel is fixedly connected to each end of the rotating shaft.
[0012] Furthermore, the top of the chair back is provided with a backrest extending to the rear.
[0013] The beneficial effects of this utility model are: when a backward tilting force is applied to the back of the chair, the chair is not easy to tip over, and it is also easy to move stacked chairs without the need for additional tools or a trolley. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] The present invention will now be described in further detail with reference to the accompanying drawings.
[0016] Figure 1 This is a schematic diagram of the structure of a stackable chair with wheel components according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a stackable chair with wheel components according to an embodiment of the present invention. Figure 2 ; Figure 3 yes Figure 2 Enlarged view of the wheel assembly as shown at center line 3-3; Figure 4 This is an enlarged view of the wheel assembly described in an embodiment of the present invention; Figure 5 This is an exploded view of the wheel assembly described in an embodiment of the present invention; Figure 6 yes Figure 3 A cross-sectional view taken from line 6-6 in the middle; Figure 7 This is a diagram illustrating the seating posture of a user sitting on a stackable chair with wheels. Figure 8 This is a diagram showing five chairs stacked together; Figure 9 This is a diagram illustrating the stack of chairs in a tilted or moving position. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0018] like Figure 1-9 As shown, this utility model discloses a stackable chair with wheel components, including a seat 16, a backrest 14 on one upper side of the seat 16, a support frame 18 connected to the bottom of the seat 16, the support frame 18 including a transverse support member 21, a support connector connected to the bottom of the seat 16 in the middle of the transverse support member 21, and support leg assemblies symmetrically provided at both ends of the transverse support member 21. The support leg assembly includes an upright leg, the upper end of the upright leg is connected to the transverse support member 21, the lower end of the upright leg is connected to a base leg, a curved connection is provided between the upright leg and the base leg, the curved connection is connected to a wheel 36 through a wheel bracket 34, and an anti-slip pad is provided at the front end of the base leg.
[0019] In a specific embodiment of this application, such as Figure 1-2 As shown, the seat 16 and backrest 14 are connected to each other to form a component. The seat 16 of the chair 10 is configured to be generally parallel to the floor, and the backrest 14 extends upward from one side of the seat 16. The backrest 14 and seat 16 are an integral structure. The seat cover 11 is attached to the bottom surface of the seat 16, clamping the support connector of the support frame 18 to the seat 16. The support connector of the support frame 18 passes through the seat cover 11 and connects to the bottom surface of the seat 16, so that the seat 16 and seat cover 11 form a flap-type structure to secure the support frame 18 in place.
[0020] The support frame 18 includes a first leg assembly 20A and a second leg assembly 20B. The first leg assembly 20A includes a first upright leg 24A, a first base leg 26A, and a first curved connecting portion 28A. The second leg assembly 20B includes a second upright leg 24B, a second base leg 26B, and a second curved connecting portion 28B. The first base leg 26A and the second base leg 26B are generally parallel to the floor. A first front cover 32A is connected to the front end of the first base leg 26A, and a first anti-slip pad 33A is provided at the bottom of the first front cover 32A. A second front cover 32B is connected to the front end of the second base leg 26B, and a second anti-slip pad 33B is provided at the bottom of the second front cover 32B. The first anti-slip pad 33A and the second anti-slip pad 33B are used to prevent the chair 10 from sliding along the floor.
[0021] The first upright leg 24A, the first basic leg 26A, the first curved connecting part 28A, the second upright leg 24B, the second basic leg 26B, and the second curved connecting part 28B are all hollow metal tubes. The first upright leg 24A and the first basic leg 26A (the second upright leg 24B and the second basic leg 26B) are integrally formed and curved to form the first curved connecting part 28A (the second curved connecting part 28B). The angle α between the first upright leg 24A and the first basic leg 26A (the second upright leg 24B and the second basic leg 26B) is less than 90°.
[0022] The first curved connecting part 28A is connected to the first wheel assembly 30A by bolt 53, and the second curved connecting part 28B is connected to the second wheel assembly 30B by bolt 53.
[0023] In a specific embodiment of this application, the first curved connecting portion 28A and the first wheel assembly 30A are specifically connected as follows: Figure 3-6As shown (the second curved connection 28B and the second wheel assembly 30B use the same connection method), the first wheel assembly 30A includes a wheel bracket 34 and a pair of wheels 36, wherein the wheels 36 are fixed to the axle 42 and located on both sides of the wheel bracket 34. The wheel bracket 34 is formed of plastic material and includes a central hole 38 with a diameter suitable for receiving the axle 42. The central hole 38 is supported by a series of spokes 39 extending outward from the central hole 38 to the outer wall of the wheel bracket 34. The wheel bracket 34 includes a mounting surface 44 located on the front side that matches the curvature of the first curved connection 28A (the curvature of the mounting surface 44 matches that of the first curved connection 28A), a lower plane 46 located at the bottom, and an outer contour surface 50 located on the rear side. The lower plane 46 has a third connection hole 45 that matches the first connection hole 49, and the outer contour surface 50 has a fourth connection hole 47 that matches the second connection hole 51. One bolt 53 passes through the third connection hole 45 and the first connection hole 49 in sequence, and another bolt 53 passes through the fourth connection hole 47 and the second connection hole 51 in sequence, thereby connecting the wheel bracket 34 to the first curved connection 28A. The wheel 36 is circular and includes a bushing 61 supported in a central bracket and a rim 63 located on the outer side.
[0024] In one specific embodiment of this application, after assembly, the chair 10 can be used to support a occupant. When seated, the weight is distributed between the first front cover 32A, the second front cover 32B, and the first wheel assembly 30A and the second wheel assembly 30B. Based on this weight distribution, the chair 10 can slide along the floor. When a portion of the user's weight leans forward, the first front cover 32A and the second front cover 32B can restrict the sliding. When the user pushes down on the backrest or simply transfers weight to the backrest 14, such as... Figure 7 As indicated by the arrows, the user's weight distribution shifts slightly from the first front cover 32A and the second front cover 32B to the first wheel assembly 30A and the second wheel assembly 30B. Therefore, when attempting to tilt the chair 10 and lifting the front covers 32A and 32B off the floor, the wheels 36 will roll along the floor to prevent the chair 10 from tipping over. Preventing the chair from tipping over helps avoid injury to the user and / or damage to the chair 10.
[0025] In a specific embodiment of this application, such as Figure 8-9As shown, the chairs of this application can also be stacked. The lateral separation width of the first leg assembly 20A and the second leg assembly 20B is greater than the width of the seat 16, as shown in the figure. The second chair extends laterally to the opposite side of the first chair. To transport the assembled stackable chairs, a person must push down the backrest 14 of the first chair 10, thereby transferring the weight from the front cover to the wheel assembly. Thus, all the weight is on the wheel assembly of the bottom first chair 10, allowing the stacked chairs to roll freely along the floor. Upon reaching the desired location, the user tilts the stack forward until the front cover of the first chair touches the floor, completing the transport.
[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A chair with stackable wheel members, comprising a seat, one side upper end of the seat being provided with a backrest, a supporting frame being connected to the bottom of the seat, characterized in that, The support frame includes a transverse support member, a support connector that connects to the bottom of the seat in the middle of the transverse support member, and support leg assemblies that are symmetrically arranged at both ends of the transverse support member. Each support leg assembly includes an upright leg, the upper end of which is connected to the transverse support member, and the lower end of which is connected to a base leg. A curved connection is provided between the upright leg and the base leg, and the curved connection is connected to a wheel via a wheel bracket. An anti-slip pad is provided at the front end of the base leg.
2. A chair according to claim 1, wherein, The seat and the backrest are an integral structure.
3. A chair with stackable wheel members as defined in claim 1, characterized in that The bottom of the chair seat is provided with a seat cover, and the support connector is fixedly connected between the seat cover and the chair seat.
4. A chair with stackable wheel members as defined in claim 1, characterized in that The upright leg, the basic leg, and the curved connecting part are all hollow metal tubes, and the upright leg, the basic leg, and the curved connecting part form an L-shaped structure, with the included angle between the upright leg and the basic leg being less than 90°.
5. A chair with stackable wheel members as defined in claim 1, wherein, The front end of the basic leg is connected to a front end cover, and the bottom of the front end cover is connected to the anti-slip pad.
6. A chair with stackable wheel members as defined in claim 1, characterized in that The rear ends of the curved connecting part are respectively provided with connecting hole one and connecting hole two for connecting the wheel bracket, and the wheel bracket is connected to the curved connecting part by bolts.
7. A stackable chair with wheel components according to claim 6, characterized in that, The wheel bracket includes a frame, which includes a mounting curved surface located on the front side and matching the curved connection part, a lower plane located at the bottom, and an outer contour surface located on the rear side. A third connection hole adapted to the first connection hole is provided on the lower plane, and a fourth connection hole adapted to the second connection hole is provided on the outer contour surface. A shaft hole is provided in the middle of the frame.
8. A stackable chair with wheel components according to claim 7, characterized in that, A rotating shaft is inserted through the shaft hole, and a wheel is fixedly connected to each end of the rotating shaft.
9. A stackable chair with wheel components according to claim 1, characterized in that, The top of the chair back is provided with a backrest that extends to the rear.