SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a back of the chair and seat for the back curve of adaptation user under different positions of sitting improves use comfort.
The utility model discloses a realize through following technical scheme:
according to an embodiment of the first aspect of the present invention, a chair back includes at least: a support; the backrest is connected on the support and comprises an upper back frame, a lower back frame and an elastic deformation section connected between the upper back frame and the lower back frame, a plurality of vertically arranged first grooves and second grooves are formed in the elastic deformation section, and openings of the first grooves and openings of the second grooves face to the front side and the rear side respectively.
According to some embodiments of the present invention, the support includes a width limiting portion and a protruding supporting portion provided on an upper side of the width limiting portion, and both a left side and a right side of the width limiting portion have a waist support section bent toward a waist of a human body.
According to some embodiments of the utility model, the supporting part is relative the limit for width portion inclines backward, go up the middle part of back of the body frame with the upper end of supporting part is connected.
According to some embodiments of the utility model, go up the middle part of back of the body frame with the pin connection is passed through to the upper end of supporting part, the axis level of pin arranges.
According to some embodiments of the utility model, the back is the frame that wholly is the rectangle, go up the back frame with the back frame all is the arch down.
According to some embodiments of the utility model, the left side and the right side of back of the body frame all through the screw with support fixed connection.
According to the utility model discloses a some embodiments, the upper portion of back of the body frame has the section of bending that inclines backward, the upper end and the elastic deformation section of the section of bending are connected, the screw passes the section of bending with support fixed connection.
According to some embodiments of the invention, the backrest further comprises a panel for shielding outside the elastic deformation section.
According to some embodiments of the invention, the elastically deformable section is made of nylon.
According to the utility model relates to an embodiment of the back of the chair has following beneficial effect at least: the utility model discloses a first recess and second recess setting are in the both sides of elastic deformation section and are staggered each other and arrange for the elastic deformation section has forward or backward takes place the characteristic of elastic bending, thereby when the user uses different back curves to press to the elastic deformation section under different positions of sitting, thereby the elastic deformation section can take place the crooked user's of laminating back curve of adaptability and provide stable support, can satisfy the support demand under the multiple position of sitting of user, improved the utility model discloses a use comfort of backrest.
According to an embodiment of the second aspect of the present invention, a chair comprises a chair back as described in the embodiment of the first aspect.
According to the utility model relates to a seat's embodiment has following beneficial effect at least: the utility model discloses a seat, its back of the chair can be bent, can satisfy the support demand of the multiple position of sitting of user, use comfort when having improved the user and leaning on.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. In addition, it should be noted that the terms of orientation described in the present invention, such as "front", "rear", "left", "right", etc., are used to describe the front side, rear side, left side and right side of the user when the user sits on the seat, wherein the left side and right side of a technical feature are involved, and the definition of the technical feature on the left side and right side of the user when the user sits on the seat is also used to describe the technical feature.
According to an embodiment of the present invention, a chair back, as shown in fig. 1-3, includes at least: a seat 100 for supporting the seat back 200 as a whole and for assembling with other accessories of the seat; the backrest 200 is connected to the support 100 and comprises an upper back frame 210, a lower back frame 220 and an elastic deformation section 230 connected between the upper back frame 210 and the lower back frame 220, the elastic deformation section 230 is provided with a plurality of first grooves 231 and second grooves 232 which are vertically arranged, openings of the first grooves 231 and the second grooves 232 face to the front side and the rear side respectively, the first grooves 231 are arranged towards the back of a human body, and the second grooves 232 are arranged back to the back of the human body. The backrest 200 of the existing chair is generally made of an integrally-made plastic part, the bending angle of the backrest 200 in the front-back direction is realized mainly by the weak elasticity of the plastic part, the material is hard, the bending angle can be almost ignored, the comfort is not good, and meanwhile, in practical application, because a user mainly bends the middle part of the spine at a large angle when changing the sitting posture, the arrangement of the existing backrest 200 cannot meet the requirement of human engineering. And the utility model discloses a seat back 200, its upper back frame 210 and lower back frame 220 can be unanimous with the material that current back 200 adopted, and be used for supporting with the little vertebra upper portion of user's degree of curvature and vertebra lower part when sitting down respectively, elastic deformation section 230 in upper back frame 210 and the lower back frame 220 comprises elastic material, be used for supporting the great vertebra middle part of range of variation when adjusting the position of sitting to the user, because a plurality of first recess 231 and the second recess 232 of stagger arrangement around having on the elastic deformation section 230, therefore elastic deformation section 230 can be when user's back presents different curves, corresponding going on the back of first recess 231 and second recess 232 and the crooked and the extrusion in order to carry out the bending of adaptability, thereby laminating user's curve, can provide stable back support to the user, user's use comfort has been promoted greatly. It is preferable that the first groove 231 is arranged to be offset from the second groove 232 so that the elastic bending section can be bent in the front-rear direction and take various shapes.
In some embodiments of the present invention, as shown in fig. 1 and 3, the support 100 includes a width limiting portion 110 and a support portion 120 protruding from the upper side of the width limiting portion 110, the left side and the right side of the width limiting portion 110 both have a waist protecting section 111 bending to the waist of the human body, the waist protecting section 111 is used for supporting the waist of the user when the user needs to perform the movement of moving body such as leaning left and leaning right, other seat accessories such as armrests can also be directly mounted on the waist protecting section 111, and this moment, the support is used for matching to support the elbow and forearm of the user.
In some embodiments of the present invention, as shown in fig. 1 and 3, the supporting portion 120 is inclined backward relative to the width limiting portion 110, and the middle portion of the upper back frame 210 is connected to the upper end of the supporting portion 120, so as to provide a support for the user leaning back, and adapt to various sitting postures of the user.
In some embodiments of the utility model, as shown in fig. 1, the middle part of the upper back frame 210 is connected with the upper end of the supporting part 120 through the pin 211, and the axis level of the pin 211 is arranged, thereby when the elastic bending section takes place certain degree of bending, the elastic bending section also drives the relative supporting part 120 of the upper back frame 210 to take place the rotation, on the one hand make things convenient for the upper back frame 210 to adapt to the user's position of sitting to take place the upset action, on the one hand also kept the activity ratio of the upper back frame 210 with the supporting part 120 junction, prolonged the practical life of the backrest 200.
In some embodiments of the present invention, as shown in fig. 1, the backrest 200 is a rectangular frame as a whole, the upper back frame 210 and the lower back frame 220 are both arched, the elastic deformation section 230 is two straight-line sections in the middle of the rectangular frame, and the structure is simple and easy to assemble and process. The practitioner in the art can arrange a net surface or a back cushion in the frame as required to further improve the use feeling of the user. Of course, in other embodiments of the present invention, the backrest 200 may also be composed of a shell-shaped upper back frame 210, an elastic deformation section 230 and a lower back frame 220, and still achieve the technical effects of the present invention.
In some embodiments of the present invention, as shown in fig. 1 to 3, the left side and the right side of the lower back frame 220 are both fixedly connected to the support 100 by screws 222, so as to prevent the elastic deformation section 230 from bending and thus the backrest 200 from being integrally displaced.
In some embodiments of the present invention, as shown in fig. 1 and 2, the upper portion of the lower back frame 220 has a bending section 221 inclined backward, the upper end of the bending section 221 is connected with the elastic deformation section 230, the screw 222 passes through the bending section 221 and the support 100, the bending section 221 of the lower back frame 220 extends backward, and the user can lean backward when leaning on the backrest 200, so as to meet the rest requirement of the user.
In some embodiments of the present invention, as shown in fig. 1, the backrest 200 further includes a panel 240 for shielding the elastic deformation section 230, preferably, the panel 240 is made of rubber, and is made of soft material and can cover the elastic deformation section 230, so as to effectively prevent the elastic deformation section 230 from binding clothes or hair of the user.
The utility model discloses a some embodiments, elastic deformation section 230 is made by nylon, and toughness is better, and cooperation first recess 231 and second recess 232 can allow elastic deformation section 230 to carry out the bending of great degree, and can prolong elastic deformation section life.
The utility model discloses still protect the seat, this seat has the back of the chair in the arbitrary embodiment of first aspect, and this kind of seat, its back of the chair can be bent, can satisfy the support demand under the multiple position of sitting of user, and use comfort when having improved the user and leaning on.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.