Chair component for roller brake

Abstract

The utility model provides a chair component for roller braking, which comprises a base and a pedal piece, rollers are arranged below the base, the pedal piece is connected to the base through an elastic sheet, and the elastic sheet acts on the pedal piece and always gives upward elastic force to the pedal piece; in the initial state, the elastic piece enables the pedal piece to be suspended on the ground, and the rolling wheels can roll; in the locking state, the pedal piece is treaded down and falls to the ground, so that the rolling wheels are braked and cannot continuously roll; when the pedal piece is loosened, the elastic piece recovers the deformation to enable the pedal piece to be suspended again so as to recover to the initial state; according to the scheme, the braking and anti-slip function of a braking wheel is replaced, so that the braking effect can be achieved by using common rollers, the cost is reduced, the benefits of manufacturers are improved, and the chair can be moved more flexibly by using the common rollers; in addition, the braking operation is convenient and can be achieved only by stepping on the pedal piece.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a chair component used for roller brakes. Background Art

[0002] With the continuous improvement of living standards, people are paying more and more attention to the impact of furniture on children. High-quality children's furniture that meets parents' psychological expectations often gains more market share. Therefore, based on user feedback, product updates and iterations are very necessary. In order to make it more suitable for children, manufacturers have developed a children's chair with rollers to facilitate the movement of the children's chair. However, parents hope that the rollers on the children's chair can be locked when the child is sitting in the children's chair or when sitting on and getting up to improve safety. Therefore, manufacturers choose brake wheels as rollers. Specifically, there are at least two brake wheels on the children's chair, which are generally set on the two front legs of the children's chair. When locking, both brake wheel switches need to be stepped on. When unlocking, both brake wheel switches need to be lifted up, which is inconvenient to operate. What's more troublesome is that you even need to squat down and use your hands to pry the switch to unlock.

[0003] Moreover, the cost of brake wheels is high. Compared with ordinary universal wheels, the cost of a single brake wheel is 4-8 times that of ordinary universal wheels. The high cost greatly reduces the manufacturer's profit. Moreover, when the brake wheels are replaced during after-sales service, the cost is further increased.

[0004] In addition, since the legs of the children's chair are horizontal and the brake wheel is set under the legs, the protruding switch of the brake wheel interferes with the legs when the brake wheel turns. Once the interference occurs, the other rollers are oriented differently from the brake wheel, and the children's chair cannot be moved. Therefore, a positioning pin is required on the brake wheel to limit the rotation range of the brake wheel. In short, the brake wheel is different from the ordinary universal wheel. It cannot achieve 360° rotation. Therefore, the brake wheel can only move the children's chair in a straight line, and it is difficult to make the children's chair rotate. The movement of the children's chair becomes very rigid.

[0005] It can be seen from this that using brake wheels on children's chairs is not a preferred solution. Summary of the Invention

[0006] In order to solve the above-mentioned technical problems, the utility model provides a chair component for roller brake, including a base and a footrest, a roller is provided under the base, and the footrest is connected to the base through an elastic sheet, which acts on the footrest and always gives the footrest an upward elastic force; in the initial state, the elastic sheet makes the footrest float off the ground, and the roller can roll; in the locked state, the footrest is stepped on and falls to the ground, causing the roller to brake and unable to continue rolling; when the footrest is released, the elastic sheet recovers its deformation and makes the footrest float again to return to the initial state; this scheme replaces the braking and anti-skid function of the brake wheel, so that the braking effect can be achieved by using ordinary rollers, which reduces costs and improves manufacturer benefits, and the ordinary rollers can make the movement of the chair more flexible; and such braking operation is convenient and can be achieved by simply stepping on the footrest.

[0007] The technical solution of the present utility model is achieved as follows:

[0008] A chair component for roller brakes includes a base and a footrest. A roller is provided below the base. The footrest is connected to the base via an elastic sheet. One end of the elastic sheet is connected to the base, and the other end is provided on the footrest. The elastic sheet is configured to act on the footrest and always give the footrest an upward elastic force. The chair component also has an initial state and a locked state. In the initial state, the elastic sheet acts on the footrest, so that the footrest is lifted off the ground, and the roller can roll on the ground. In the locked state, the footrest is subjected to a downward force due to the human foot resting on it, and the elastic sheet deforms to cause the footrest to move downward until it contacts the ground, thereby braking the roller.

[0009] When switching from the initial state to the locked state, the user's foot rests on the footrest, which is subjected to a downward force and deforms the elastic sheet; when switching from the locked state to the initial state, the footrest is released, the elastic sheet recovers its deformation, and the footrest is reset, and the footrest is lifted off again. The footrest not only has a footrest function, but also has a brake and anti-skid function. In this way, the brake and anti-skid function of the brake wheel is replaced by the footrest, and the roller no longer needs a brake wheel, and only an ordinary universal wheel can be used. The advantages are: first, the cost is greatly reduced, which improves the manufacturer's efficiency; second, the operation of locking and unlocking the brake is more convenient, without having to stand up or bend over to operate, just stepping on the footrest can achieve braking, and leaving the footrest can unlock; third, the interference problem between the brake wheel and the base is solved, making the roller flexible in steering and the child chair more flexible when moving.

[0010] Preferably, the base includes a main body and at least two supporting legs extending outward from the main body, and the rollers are mounted below the supporting legs. The supporting legs can increase the floor space of the base and increase the stability of the base.

[0011] Preferably, the base has at least two symmetrical, forward-extending legs; a footrest is positioned between the two legs, with the rear end of the elastic sheet fixedly attached to the legs and the front end of the elastic sheet attached to the footrest. Because the forward-extending legs are closer to the footrest than the main body, the use of an elastic sheet connection requires a smaller elastic sheet, resulting in lower costs.

[0012] Preferably, the elastic sheet is V-shaped and includes two forked portions, one end of each forked portion being fixedly connected to the support leg portion, and the other ends of each forked portion being connected to each other and mounted on the footrest. The elastic sheet not only enables the footrest to move up and down but also supports the footrest in the air in its initial state. Therefore, the elastic sheet requires a certain degree of support strength. A V-shaped elastic sheet provides greater support strength while still allowing the footrest to move up and down.

[0013] Preferably, each of the two supporting legs is provided with an elastic sheet, and the two elastic sheets are symmetrically connected to the pedal member. The cost of implementing this solution is relatively low.

[0014] Preferably, the rear end of the elastic sheet is fixedly mounted on the front of the main body, and the front end of the elastic sheet is mounted on the rear of the footrest. Compared to mounting the elastic sheet on the footrest, the elastic sheet disposed on the main body is longer and can experience greater vertical deformation, ensuring that the footrest can contact the ground when deformed downward.

[0015] Preferably, the rear end of the elastic sheet is fixedly mounted on the lower surface of the main body by screws, and the front end of the elastic sheet is fixedly mounted on the lower surface of the footrest by screws. The elastic sheet is directly connected to the lower surface of the main body and the footrest, which makes installation and connection more convenient.

[0016] Preferably, the rear end of the elastic piece is inserted into the main body and fixedly connected by screws; the front end of the elastic piece is inserted into the footrest and fixedly connected by screws. The elastic piece is inserted into the main body and the footrest to make the connection more stable.

[0017] Preferably, the roller is a universal roller. In addition to rolling, the roller can also rotate on the base to switch the rolling direction, that is, the roller can turn, and the roller can rotate on the base within a range of 360 degrees, that is, full-angle turning. The rolling direction of the roller is not restricted, so that the chair can be moved in any direction when on the ground, which is more flexible.

[0018] As preferably, the pedal member lower end is provided with a friction pad. When the pedal member moves down to brake, the friction pad contacts the ground, which increases friction on the one hand and prevents the pedal member from wearing away the floor and the pedal member itself from wearing away on the other hand.

[0019] The design starting point, concept and beneficial effects of the utility model using the above technical solution are:

[0020] When switching from the initial state to the locked state, the user's foot rests on the footrest, which is subjected to a downward force and deforms the elastic sheet; when switching from the locked state to the initial state, the footrest is released, the elastic sheet recovers its deformation, and the footrest is reset, and the footrest is lifted off again. The footrest not only has a footrest function, but also has a brake and anti-skid function. In this way, the brake and anti-skid function of the brake wheel is replaced by the footrest, and the roller no longer needs a brake wheel, and only an ordinary universal wheel can be used. The advantages are: first, the cost is greatly reduced, which improves the manufacturer's efficiency; second, the operation of locking and unlocking the brake is more convenient, without having to stand up or bend over to operate, just stepping on the footrest can achieve braking, and leaving the footrest can unlock; third, the interference problem between the brake wheel and the base is solved, making the roller flexible in steering and the child chair more flexible when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the children's chair in Example 1 of the present invention;

[0022] Figure 2 This is a bottom view of the elastic sheet connected to the main body and the pedal member in Example 1 of the present invention;

[0023] Figure 3 This is a side view of the children's chair in the initial state of Example 1 of the present invention;

[0024] Figure 4 This is a side view of the children's chair in the locked state in Example 1 of the present invention;

[0025] Figure 5 This is a bottom view of the elastic sheet connected to the supporting foot and the pedal member in Example 2 of the present invention;

[0026] Figure 6 This is a bottom view of the elastic sheet connected to the supporting foot and the pedal member in Example 3 of the present invention.

[0027] The reference numerals of the figures are: base 1; main body 101; support leg 102; roller 2; footrest 3; support rod 4; seat 5; backrest 6; pull ring 7; friction pad 8; elastic sheet 9; fork 91. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0030] In the description of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0031] The specific implementation of the utility model is as follows: Example

[0032] like Figure 1-4 As shown, the utility model provides a chair component for braking a roller 2, comprising a base 1 and a footrest 3, wherein the roller 2 is provided below the base 1, and an elastic sheet 9 (elastic support member) is provided between the base 1 and the footrest 3, and the footrest 3 is connected to the base 1 via the elastic sheet 9, wherein one end of the elastic sheet 9 is connected to the base 1, and the other end is provided on the footrest 3, and the elastic sheet 9 is configured to act on the footrest 3 and always give the footrest 3 an upward elastic force; the chair component also has an initial state and a locked state, wherein in the initial state, the elastic sheet 9 acts on the footrest 3, so that the footrest 3 is lifted off the ground, and the roller 2 can roll on the ground; in the locked state, the footrest 3 is subjected to a downward force due to the resting of a human foot, and the elastic sheet 9 is deformed to cause the footrest 3 to move downward until it contacts the ground, so that the roller 2 can be braked.

[0033] When switching from the initial state to the locked state, the user's foot rests on the footrest, which is subjected to a downward force, causing the elastic sheet 9 to deform. When switching from the locked state to the initial state, the footrest is released, and the elastic sheet 9 recovers its deformation, driving the footrest 3 to return to its original position, and the footrest 3 is once again in the air. The footrest 3 not only has a footrest function, but also has a brake and anti-skid function. In this way, the footrest 3 replaces the brake wheel's brake and anti-skid function, and the roller 2 no longer needs to use a brake wheel, and only an ordinary universal wheel can be used. The advantages brought are: first, the cost is greatly reduced, which improves the manufacturer's efficiency; second, the operation of locking and unlocking the brake is more convenient, without having to stand up or bend over to operate, just stepping on the footrest 3 can achieve braking, and leaving the foot on the footrest 3 can unlock; in addition, the interference problem between the brake wheel and the base 1 is solved, making the roller 2 flexible in steering and the child chair more flexible in movement.

[0034] Specifically, the chair component is used in a children's chair, including a support rod 4 inserted on the base 1 and a seat 5 and a backrest 6 arranged on the support rod 4. The support rod 4 is used to support the seat 5 and the backrest 6. The base 1 serves as the main support of the children's chair, the seat 5 is used to support the human buttocks, and the backrest 6 is used to support the human back; a pull ring 7 is also provided at the upper end of the support rod 4, and holding the pull ring 7 makes it easier to push and pull the children's chair.

[0035] Furthermore, the base 1 includes a main body 101 and at least two supporting legs 102 extending outward from the main body 101, and the roller 2 is installed under the supporting legs 102; two supporting legs 102 extending forward and outward are connected to the main body 101, and the two supporting legs 102 are symmetrically arranged at the front end of the main body 101, and the footrest 3 is located between the two supporting legs 102; the supporting legs 102 can increase the footprint of the base 1 and increase the stability of the base 1.

[0036] The roller 2 is a universal roller 2. In addition to rolling, the roller 2 can also rotate on the base 1 to switch the rolling direction, that is, the roller 2 can turn, and the rotation range of the roller 2 on the base 1 is 360°, that is, full-angle turning. The rolling direction of the roller 2 is not restricted, so that the chair can move in any direction when on the ground, which is more flexible; a friction pad 8 is provided at the lower end of the footrest 3; when the footrest 3 moves down to brake, the friction pad 8 contacts the ground, which increases friction on the one hand and prevents the footrest 3 from wearing the floor and the footrest 3 itself on the other hand.

[0037] The rear end portion of the elastic sheet 9 is fixedly arranged at the front portion of the main body 101, and the front end portion of the elastic sheet 9 is arranged at the rear portion of the footrest 3. The elastic sheet 9 is fixedly connected to the main body 101 and the footrest 3 by screws. Compared with being arranged on the support foot 102, the elastic sheet 9 is arranged on the main body 101. The elastic sheet 9 is longer and can have more up and down deformation, ensuring that the footrest 3 can be deformed downward and can touch the ground. The elastic sheet 9 is connected to the lower surface of the main body 101 and the footrest 3. The elastic sheet 9 can also be inserted into the main body 101 and the footrest 3, and the connection is relatively more stable. In this embodiment, the elastic sheet 9 is directly connected to the lower surface of the main body 101 and the footrest 3, and the installation connection is more convenient.

[0038] Example 2: The difference between this example and Example 1 is that the elastic piece 9 is installed on the supporting leg 102. Specifically:

[0039] like Figure 5 As shown, each of the two supporting legs 102 is provided with an elastic sheet 9, and the two elastic sheets 9 are symmetrically connected to the footrest 3. The rear ends of the two elastic sheets 9 are respectively fixedly connected to the two supporting legs 102, and the front ends of the two elastic sheets 9 are respectively fixedly connected to the left and right ends of the footrest 3; since the supporting legs 102 extend forward and are closer to the footrest 3 than the main body 101, when the elastic sheet 9 is used for connection, the required elastic sheet is smaller in size and lower in cost.

[0040] Example 3: The only difference between this example and Example 2 is that there is only one elastic piece 9, which is V-shaped. Specifically:

[0041] like Figure 6As shown, the elastic sheet 9 is V-shaped, and the elastic sheet 9 includes two forked portions 91. One end of the two forked portions 91 is fixedly connected to the support leg portion 102, and the other ends of the two forked portions 91 are connected to each other and mounted on the pedal member 3. The elastic sheet 9 is not only used to enable the pedal member 3 to move up and down, but also has the ability to support the pedal member 3 in the air in the initial state. Therefore, the elastic sheet 9 requires a certain supporting strength. The V-shaped elastic sheet 9 has better supporting strength, while enabling the pedal member 3 to move up and down.

Claims

1. A chair component for roller brake, characterized in that: The chair comprises a base and a footrest, a roller is provided under the base, the footrest is connected to the base via an elastic sheet, one end of the elastic sheet is connected to the base, and the other end is provided on the footrest, the elastic sheet is configured to act on the footrest and always give the footrest an upward elastic force; the chair component also has an initial state and a locked state, in the initial state, the elastic sheet acts on the footrest, so that the footrest is lifted off the ground and the roller can roll on the ground; in the locked state, the footrest is subjected to a downward force due to the resting of the human foot, the elastic sheet is deformed, and the footrest moves downward until it contacts the ground to brake the roller.

2. The chair component for roller brake according to claim 1, characterized in that: The base comprises a main body and at least two supporting legs extending outward from the main body, and the rollers are installed below the supporting legs.

3. The chair component for roller brake according to claim 2, characterized in that: The base has at least two supporting feet extending forward and symmetrical to each other; the pedal is located between the two supporting feet, the rear end of the elastic sheet is fixedly arranged on the supporting feet, and the front end of the elastic sheet is arranged on the pedal.

4. The chair component for roller brake according to claim 3, characterized in that: The elastic piece is V-shaped and includes two forked parts. One end of the two forked parts is fixedly connected to the supporting foot part, and the other ends of the two forked parts are connected to each other and installed on the pedal part.

5. The chair component for roller brake according to claim 3, characterized in that: An elastic sheet is respectively provided on the two supporting legs, and the two elastic sheets are symmetrically connected to the pedal member.

6. The chair component for roller brake according to claim 2, characterized in that: The rear end portion of the elastic piece is fixedly arranged on the front portion of the main body portion, and the front end portion of the elastic piece is arranged on the rear portion of the pedal member.

7. The chair component for roller brake according to claim 6, characterized in that: The rear end portion of the elastic piece is fixedly mounted on the lower surface of the main body portion by means of screws; the front end portion of the elastic piece is fixedly mounted on the lower surface of the pedal member by means of screws.

8. The chair component for roller brake according to claim 6, characterized in that: The rear end portion of the elastic piece is inserted into the main body and fixedly connected by screws; the front end portion of the elastic piece is inserted into the pedal piece and fixedly connected by screws.

9. The chair component for roller brake according to claim 1, characterized in that: The roller is a universal roller.

10. The chair component for roller brake according to claim 1, characterized in that: A friction pad is provided at the lower end of the pedal piece.

Images