Study Chair

Abstract

The present invention provides a study chair, which includes chair legs, support rods, a seat frame, a lifting slide, a chair back, and a push-to-connect kit for adjusting the seat depth and sitting posture. The chair back is fixedly connected to the lifting slide via the push-to-connect kit. The push-to-connect kit includes a push-to-distance adjustment member for adjusting the horizontal distance between the support rod and the chair back, and a chair back adaptive component for adjusting the curvature of the chair back. One end of the push-to-distance adjustment member is fixed to the end of the lifting slide close to the chair back, and the other end of the push-to-distance adjustment member is fixed to the chair back via the chair back adaptive component. One end of the chair back adaptive component is fixed to the end of the push-to-distance adjustment member away from the lifting slide, and the other end of the chair back adaptive component is fixed to the chair back. Compared with the related art, the study chair using the present invention is simple to operate, easy to adjust the seat depth of the chair back, and has a good back-recognition effect, which provides a good user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of chairs, in particular to a study chair. Background Art

[0002] With the development of society, children occupy a central position in the family, and the demand for children's furniture and supplies is increasing rapidly. Study chairs have become an important part of children's furniture.

[0003] Currently, the majority of children's products on the market are not conducive to children's growth. Consumers still have a very vague understanding of children's ergonomics, and some even believe that anything with adjustable height and angle is ergonomic. In reality, ergonomic research and development encompasses multiple fields, including analysis of basic human data, analysis and calculation of physiological data, and even psychological research and measurement. Children's ergonomics is relatively complex, as children undergo significant physiological and psychological changes as they age, requiring more scientific and precise design. Consequently, China's first ergonomics association invested in children's ergonomics research in 2016, applying its findings to ergonomic children's tables and chairs. It also launched the "Six Standards for Ergonomic Children's Chairs," establishing a standard for the furniture industry.

[0004] However, related art learning chairs generally suffer from the following issues: First, they are difficult to adjust forward and backward, requiring parental coordination. Second, their travel is too short, failing to achieve the desired back-tracking effect, which can easily distract children. A technical challenge remains: how to address these common issues with current learning chairs, address the seat depth adjustment issue, and achieve a more effective back-tracking effect and easier operation, thereby enhancing children's attention and improving their learning efficiency.

[0005] Therefore, it is necessary to provide a new learning chair to solve the problems referred to above. Summary of the Invention

[0006] In view of the above deficiencies in the prior art, the present invention proposes a study chair that is simple to operate, easy to adjust the seat depth of the chair back, has a good back-retraction effect, and provides a good user experience.

[0007] In order to solve the above technical problems, an embodiment of the present invention provides a study chair, which includes chair legs, support rods fixed to the chair legs, a seat frame supported by the support rods and spaced apart from the chair legs, a lifting slider slidably connected to the support rods, and a chair back connected to the lifting slider;

[0008] The study chair further comprises a horizontal push connection kit for adjusting the sitting depth and sitting posture, and the chair back is connected to the lifting slide member via the horizontal push connection kit;

[0009] The horizontal push connection kit includes a horizontal push distance adjustment member for adjusting the horizontal distance between the support rod and the seat back and a seat back adaptive component for adjusting the curvature of the seat back; one end of the horizontal push distance adjustment member is fixed to the end of the lifting slide member close to the seat back, and the other end of the horizontal push distance adjustment member is fixed to the seat back through the seat back adaptive component; one end of the seat back adaptive component is fixed to the end of the horizontal push distance adjustment member away from the lifting slide member, and the other end of the seat back adaptive component is fixed to the seat back.

[0010] Preferably, the push-to-connect assembly further comprises a main body fixed to the lifting slide member and a decorative cover fixed to the main body, the main body and the decorative cover are spaced apart to form an installation space, and the push-to-distance adjustment member is accommodated in the installation space.

[0011] Preferably, the main body is provided with a plurality of card slots arranged in sequence; the horizontal push distance adjustment member includes a horizontal push locking member and an unlocking button, the horizontal push locking member is accommodated in the installation space and forms a card-connected fixing structure with the card slot, and the unlocking button is at least partially exposed from the decorative cover; when the unlocking button is pressed, the unlocking button abuts against the horizontal push locking member and causes the horizontal push locking member to disengage from the card slot, and the horizontal push locking member is connected to any one of the card slots to adjust the distance between the support rod and the chair back.

[0012] Preferably, the horizontal push locking component includes a lock body in the shape of a long block, a block arranged at one end of the lock body away from the support rod, a pin fixed at the middle position of the lock body and a torsion spring, and the block is inserted into the slot to form a clamping and fixing structure; the horizontal push locking component is fixed to the decorative cover through the pin to form the lever axis of the lock body; the torsion spring is installed on the lock body and the pin at the same time to enable the block to be clamped in the slot; when the unlock button is pressed, the unlock button abuts against the side of the lock body away from the block, and causes the lock body to revolve along the axis of the pin to achieve the separation of the block from the slot.

[0013] Preferably, the angle between the groove wall on the side of the groove away from the support rod and the groove bottom of the groove is greater than the angle between the groove wall on the side of the groove close to the support rod and the groove bottom of the groove. When the chair back is pushed horizontally away from the support rod, the horizontal pushing locking member disengages from the current groove and is engaged with an adjacent groove away from the support rod; when the chair back is pushed horizontally toward the support rod, the horizontal pushing locking member is engaged and fixed with the groove.

[0014] Preferably, the angle between the groove wall on the side of the slot close to the support rod and the groove bottom of the slot is greater than 90 degrees.

[0015] Preferably, the main body is also provided with two sliding grooves spaced apart from each other and extending along the direction in which the chair back is pushed away from or close to the support rod, and the plurality of spaced apart slots are located in sequence between the two sliding grooves; the study chair also includes two limit screw columns matching the sliding grooves, and the two limit screw columns clamp the lock body, and each limit screw column is inserted into the sliding groove to realize that when the chair back is pushed horizontally in the direction close to the support rod, the push locking component is fixed to the main body.

[0016] Preferably, the chair back adaptive component includes a fixing member and an elastic member; one end of the fixing member is fixed to one end of the elastic member, and the other end of the fixing member is fixed to the chair back; and one end of the elastic member away from the elastic member is fixed to the body.

[0017] Preferably, the elastic member is any one of a spring, a spring sheet, a leaf spring, and a rubber block.

[0018] Preferably, the elastic member is a V-shaped spring piece, and the elastic member includes a first section and a second section bent and extended from the first section. One end of the fixing member is fixed to the first section, and the second section is fixed to the body.

[0019] Compared to related art, the study chair of the present invention utilizes a push-to-connect assembly for adjusting seat depth and sitting posture, connecting the chair back to the lifting slider via the push-to-connect assembly. Specifically, the push-to-connect assembly includes a push-to-distance adjuster for adjusting the distance between the support rod and the chair back, and a back self-adapting assembly for adjusting the curvature of the chair back. This simple structure makes the study chair easy to operate, allows for easy adjustment of the seat back depth, and provides a good back-adjusting effect, resulting in a superior user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in detail below with reference to the accompanying drawings. The above and other aspects of the present invention will become clearer and easier to understand through the detailed description made with reference to the following drawings.

[0021] Figure 1 Schematic diagram of the three-dimensional structure of a study chair according to an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a partial three-dimensional structure of a study chair according to an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Schematic diagram of the partial decomposition structure;

[0024] Figure 4 Schematic diagram of the three-dimensional structure of the push-to-connect assembly of the learning chair according to an embodiment of the present invention;

[0025] Figure 5 for Figure 4 Schematic diagram of the partial decomposition structure;

[0026] Figure 6 Schematic diagram of the dissection of the main body with an adjustable backrest according to an embodiment of the present invention.

[0027] in,

[0028] 1. Chair legs, 2. Support rods, 3. Seat frame, 4. Lifting slide, 5. Chair back, 6. Push connection kit, 60. Installation space, 61. Main body, 62. Decorative cover, 610. Slot, 611. Slide slot, 7. Push spacing adjustment part, 8. Chair back adaptive component, 81. Fixing part, 82. Elastic part, 821. First section, 822. Second section, 9. Push locking part, 91. Lock body, 92. Block, 93. Torsion spring, 94. Pin, 10. Unlock button, 11. Limit screw column. DETAILED DESCRIPTION

[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] The specific embodiments / examples described herein are specific embodiments of the present invention and are used to illustrate the concept of the present invention. They are illustrative and exemplary and should not be construed as limiting the embodiments of the present invention or the scope of the present invention. In addition to the examples described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the disclosure of the specification. These technical solutions, including any obvious replacements and modifications of the embodiments described herein, are all within the scope of protection of the present invention.

[0031] The present invention provides a study chair 100 .

[0032] Please also refer to Figure 1-3 As shown, Figure 1 Schematic diagram of the three-dimensional structure of the study chair 100 according to an embodiment of the present invention; Figure 2 Schematic diagram of a partial three-dimensional structure of a study chair 100 according to an embodiment of the present invention; Figure 3 for Figure 2 Schematic diagram of the partial decomposition structure.

[0033] The study chair 100 includes chair legs 1, support rods 2, a seat frame 3, a lifting slide 4, a chair back 5 and a horizontal push connection kit 6.

[0034] The chair legs 1 are used for support. In this embodiment, the chair legs 1 have a plurality of pulleys for easy movement.

[0035] The support rod 2 is fixed to the chair leg 1 .

[0036] The seat frame 3 is connected to the support rod 2. The seat frame 3 is spaced apart from the chair legs 1. In this embodiment, the seat frame 3 can be adjusted in height by being clipped onto the support rod 2 at different heights. Of course, the seat frame 3 can also be moved forward and backward relative to the support rod 2.

[0037] The lifting slider 4 forms a sliding connection with the support rod 2. In this embodiment, the support rod 2 is provided with a guide groove 20, through which the lifting slider 4 forms a sliding connection with the support rod 2. Of course, in order to fix the position of the lifting slider 4 and the support rod 2, a lifting lock (not shown) can be provided inside the lifting slider 4. The lifting lock utilizes the friction between thermoplastic polyurethane rubber (TPU) and plastic parts to achieve the lifting and lowering of the chair back 5.

[0038] The chair back 5 is connected to the lifting slide 4. The chair back 5 is connected to the lifting slide 4 through the horizontal push connection kit 6. The chair back 5 conforms to the growth curve of the child, improves the child's concentration, and enables the child to focus more on learning.

[0039] The horizontal push connection kit 6 is used to adjust the seat depth and sitting posture. Specifically, the horizontal push connection kit 6 includes a body 61, a decorative cover 62, a horizontal push distance adjustment member 7 and a seat back adaptive component 8.

[0040] The main body 61 is fixed to the lifting slide 4 .

[0041] The decorative cover 62 is mounted on and fixed to the body 61. The body 61 and the decorative cover 62 are separated to form an installation space 60. The decorative cover 62 can meet the appearance requirements of the entire chair.

[0042] The horizontal push distance adjustment member 7 is housed within the installation space 60. The horizontal push distance adjustment member 7 is used to adjust the horizontal distance between the support rod 2 and the chair back 5. One end of the horizontal push distance adjustment member 7 is fixed to the end of the lifting slider 4 near the chair back 5; the other end of the horizontal push distance adjustment member 7 is fixed to the chair back 5 via the chair back adaptive assembly 8. The horizontal push distance adjustment member 7 increases the strength of the horizontal push function and facilitates smoother and more comfortable adjustment of the entire chair.

[0043] The seat back adaptive assembly 8 is partially housed within the installation space 60. The seat back adaptive assembly 8 is used to adjust the curvature of the seat back 5 so that the user's back fits snugly against the seat back 5. One end of the seat back adaptive assembly 8 is secured to the end of the horizontal push distance adjustment member 7 away from the lifting slider 4; the other end of the seat back adaptive assembly 8 is secured to the seat back 5. The seat back adaptive assembly 8 enhances the seat back 5's adaptive function, allowing the seat back 5 to better fit the user's body curves when the child leans against it.

[0044] Please also refer to Figure 4-5 As shown, Figure 4 Schematic diagram of the three-dimensional structure of the horizontal push connection kit 6 of the learning chair 100 according to an embodiment of the present invention; Figure 5 for Figure 4 In this embodiment, the main body 61 is provided with a plurality of slots 610 arranged in sequence.

[0045] In this embodiment, the horizontal push distance adjusting member 7 includes a horizontal push locking member 9 and an unlocking button 10 .

[0046] The horizontal push locking member 9 is housed in the installation space 60 and forms a fixed engagement structure with the locking slot 610. The unlocking button 10 is at least partially exposed from the decorative cover 62. When the unlocking button 10 is pressed, it abuts against the horizontal push locking member 9 and disengages the horizontal push locking member 9 from the locking slot 610. The horizontal push locking member 9 is engaged with any of the locking slots 610 to adjust the distance between the support rod 2 and the seat back 5.

[0047] In this embodiment, the horizontal push locking member 9 includes a lock body 91 in the form of an elongated block, a clamping block 92 provided at one end of the lock body 91 away from the support rod 2, a torsion spring 93 fixed to the middle position of the lock body 91, and a pin 94. The clamping block 92 is inserted into the clamping slot 610 to form a clamping and fixing structure. The horizontal push locking member 9 is fixed to the decorative cover 62 via the pin 94 to form the lever axis of the lock body 91. The torsion spring 93 is installed on both the lock body 91 and the pin 94 to clamp the clamping block 92 into the clamping slot 610. The torsion spring 93 exerts an elastic force on the lock body 91, causing the clamping block 92 to clamp into the clamping slot 610. The torsion spring 93 performs both locking and unlocking functions of the horizontal push. When the unlock button 10 is pressed, the unlock button 10 abuts against the side of the lock body 91 away from the block 92 and causes the lock body 91 to rotate along the axis of the pin 94 to enable the block 92 to be separated from the slot 610 .

[0048] Please refer to Figure 6As shown, the angle between the groove wall of the groove 610 away from the support rod 2 and the groove bottom of the groove 610 is greater than the angle between the groove wall of the groove 610 close to the support rod 2 and the groove bottom of the groove 610. In this embodiment, the angle between the groove wall of the groove 610 close to the support rod 2 and the groove bottom of the groove 610 is greater than 90 degrees. Preferably, the angle between the groove wall of the groove 610 close to the support rod 2 and the groove bottom of the groove 610 is 135 degrees. When the angle is 135 degrees, it can be easily operated and the chair back 5 can be automatically unlocked by pulling it outward, thereby controlling the seat depth. The specific operation is: by pulling the chair back 5 outward, that is, pulling the chair back 5 away from the support rod 2, it will be automatically unlocked, thereby controlling the sitting depth and achieving the best sitting posture suitable for children. However, if the sitting depth needs to be increased, the unlocking button 10 needs to be pressed at the same time to move the entire chair back 5 backward, thereby increasing the sitting depth of the entire learning chair 100.

[0049] Specifically, when the chair back 5 is pushed horizontally away from the support rod 2, the horizontal push locking member 9 disengages from the current locking slot 610 and engages with an adjacent locking slot 610 away from the support rod 2. When the chair back 5 is pushed horizontally toward the support rod 2, the horizontal push locking member 9 is locked and fixed with the locking slot 610. This structure does not require pressing the unlock button 10; the seat depth can be adjusted by pulling the chair back 5. However, if the chair back 5 needs to move backward, the unlock button 10 needs to be pressed to achieve backward movement of the chair back, thereby adjusting the seat depth. This simple structure and operation make it easy to adjust the seat depth of the chair back 5.

[0050] In this embodiment, the main body 61 is further provided with two sliding grooves 611 spaced apart from each other and extending along the direction in which the chair back 5 is pushed away from or toward the support rod 2, and a plurality of spaced apart slots 610 are sequentially located between the two sliding grooves 611. The study chair 100 also includes two limit screw columns 11 that match the sliding grooves 611. The two limit screw columns 11 clamp and fix the lock body 91. Each limit screw column 11 is inserted into the sliding groove 611 to ensure that when the chair back 5 is pushed toward the support rod 2, the push-locking member 9 is fixed to the main body 61. A fixed structure is formed between the push-locking member 9 and the sliding groove 611, and this fixed structure can prevent the chair back 5 from being separated from the entire chair due to manual operation.

[0051] Please refer to Figure 5As shown, the seat back adaptive assembly 8 includes a fixing member 81 and an elastic member 82. One end of the fixing member 81 is fixed to one end of the elastic member 82, and the other end of the fixing member 81 is fixed to the seat back 5. The end of the elastic member 82, away from the elastic member 82, is fixed to the body 61. The seat back adaptive assembly 8 can enhance the seat back's adaptive function, allowing the seat back to better fit the child's body curves when leaning against it.

[0052] The elastic member 82 can be any other elastic component such as a spring, a spring, a leaf spring, a rubber block, etc., and is not limited here. In this embodiment, the elastic member 82 is a V-shaped spring, and the elastic member 82 includes a first section 821 and a second section 822 bent and extended from the first section 821. One end of the fixing member 81 is fixed to the first section 821, and the second section 822 is fixed to the main body 61. The V-shaped elastic member 82 is connected to the chair back 5. When a child sits on it, the seat depth is adjusted to make the chair back fit the child's chair back. The weight of the child's back is transferred to the chair back and applied to the V-shaped elastic member 82, which realizes the chair back adaptive function. This structure makes the chair back 5 have a good chasing effect and a good user experience. Of course, it is not limited to this. The elastic member 82 can also be an arc-shaped spring.

[0053] Compared to related art, the study chair of the present invention utilizes a push-to-connect assembly for adjusting seat depth and sitting posture, connecting the chair back to the lifting slider via the push-to-connect assembly. Specifically, the push-to-connect assembly includes a push-to-distance adjuster for adjusting the distance between the support rod and the chair back, and a back self-adapting assembly for adjusting the curvature of the chair back. This simple structure makes the study chair easy to operate, allows for easy adjustment of the seat back depth, and provides a good back-adjusting effect, resulting in a superior user experience.

[0054] It should be noted that the various embodiments described above with reference to the accompanying drawings are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Those skilled in the art should understand that any modifications or equivalent substitutions to the present invention that do not depart from the spirit and scope of the present invention are intended to be encompassed within the scope of the present invention. Furthermore, unless the context otherwise requires, words appearing in the singular include the plural form, and vice versa. Furthermore, unless otherwise specified, all or part of any embodiment may be used in combination with all or part of any other embodiment.

Claims

1. A study chair comprising a chair leg, a support rod fixed to the chair leg, a seat frame supported by the support rod and spaced apart from the chair leg, a lifting slide slidably connected to the support rod, and a chair back connected to the lifting slide, characterized in that: The study chair further comprises a horizontal push connection kit for adjusting the sitting depth and sitting posture, and the chair back is connected to the lifting slide member via the horizontal push connection kit; The horizontal push connection kit includes a horizontal push distance adjustment member for adjusting the horizontal distance between the support rod and the seat back and a seat back adaptive component for adjusting the curvature of the seat back; One end of the horizontal push distance adjusting member is fixed to the end of the lifting slide member close to the seat back, and the other end of the horizontal push distance adjusting member is fixed to the seat back through the seat back adaptive component; one end of the seat back adaptive component is fixed to the end of the horizontal push distance adjusting member away from the lifting slide member, and the other end of the seat back adaptive component is fixed to the seat back; The horizontal push connection kit further includes a body fixed to the lifting slide member and a decorative cover sleeved and fixed to the body, wherein the body and the decorative cover are spaced apart to form an installation space, and the horizontal push distance adjustment member is accommodated in the installation space; The body is provided with a plurality of slots arranged in sequence; the horizontal push distance adjustment member includes a horizontal push locking member and an unlocking button, the horizontal push locking member is accommodated in the installation space and forms a clamping and fixing structure with the slot, and the unlocking button is at least partially exposed from the decorative cover; when the unlocking button is pressed, the unlocking button abuts against the horizontal push locking member and causes the horizontal push locking member to disengage from the slot, and the horizontal push locking member is clamped to any one of the slots to adjust the distance between the support rod and the seat back; The horizontal push locking member includes a lock body in the form of an elongated block, a clamping block provided at one end of the lock body away from the support rod, a pin fixed in the middle position of the lock body, and a torsion spring, wherein the clamping block is inserted into the clamping slot to form a clamping and fixing structure; the horizontal push locking member is fixed to the decorative cover by the pin to form the lever axis of the lock body; the torsion spring is installed on both the lock body and the pin to clamp the clamping block in the clamping slot; when the unlocking button is pressed, the unlocking button abuts against the side of the lock body away from the clamping block, causing the lock body to rotate along the axis of the pin to realize the disengagement of the clamping block from the clamping slot; The included angle between the groove wall on the side of the locking groove away from the support rod and the groove bottom of the locking groove is greater than the included angle between the groove wall on the side of the locking groove close to the support rod and the groove bottom of the locking groove. When the chair back is pushed horizontally in the direction away from the support rod, the horizontal push locking member disengages from the current locking groove and engages with an adjacent locking groove away from the support rod; when the chair back is pushed horizontally in the direction close to the support rod, the horizontal push locking member is fixedly engaged with the locking groove. The main body is also provided with two sliding grooves spaced apart from each other and extending along the direction in which the chair back is pushed away from or close to the support rod, and a plurality of spaced apart slots are located in sequence between the two sliding grooves; the study chair also includes two limit screw columns matching the sliding grooves, and the two limit screw columns clamp the lock body, and each limit screw column is inserted into the sliding groove to realize that when the chair back is pushed horizontally toward the support rod, the push locking component is fixed to the main body.

2. The study chair according to claim 1, characterized in that: An included angle between a groove wall on a side of the clamping groove close to the support rod and a groove bottom of the clamping groove is greater than 90 degrees.

3. The study chair according to claim 1, characterized in that: The chair back adaptive component includes a fixing part and an elastic part; one end of the fixing part is fixed to one end of the elastic part, and the other end of the fixing part is fixed to the chair back; the end of the elastic part away from the elastic part is fixed to the body.

4. The study chair according to claim 3, characterized in that: The elastic member is any one of a spring, a spring sheet, a leaf spring and a rubber block.

5. The study chair according to claim 4, characterized in that: The elastic member is a V-shaped spring sheet, comprising a first section and a second section extending from the first section by bending. One end of the fixing member is fixed to the first section, and the second section is fixed to the body.

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