Seat and back sliding and waist jacking device thereof

Abstract

The utility model relates to the field of seats, in particular to a seat and a back sliding and waist jacking device thereof. The sliding back and waist supporting device comprises a sliding base which is directly or indirectly arranged on the chair back supporting frame in a sliding manner, and a backrest framework arranged on the sliding base; the waist rest assembly is connected to a sliding base below the backrest framework through a waist jacking mechanism, the upper end of the waist jacking mechanism is hinged to the sliding base, and the waist jacking mechanism can longitudinally ascend and descend along with the sliding base; a guide component is further arranged in the descending path of the waist jacking mechanism, and in the descending process of the waist jacking mechanism along with the sliding base, the guide component acts on the waist jacking mechanism to enable the waist jacking mechanism to rotate forwards along the hinged end at the upper end and support the waist leaning assembly. According to the scheme, the sliding back and the waist supporting structure are linked, so that the waist is effectively supported while the sliding back is used, and the sitting comfort of the seat is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat, especially to a seat and a sliding back and waist lifting device thereof. BACKGROUND

[0002] In the existing office chair, the backrest is usually connected by the chair back and the chair back support frame, wherein the chair back is used for setting the mesh cloth or the leather surface cloth and is a component directly supporting the human back; the chair back frame is used for connecting the seat chassis and the chair back and effectively fixing the chair back. Usually, the chair back and the chair back frame are fixedly connected, in addition, in order to improve the comfort, the chair back and the chair back frame of part of the seat also exist in the form of hinged connection, so that the chair back can relatively rotate relative to the chair back frame. The connection mode between the existing chair back and the chair back frame has the following deficiencies: when the back of the user leans on the backrest, if the force is leaned back, the human back will slide downward relative to the chair back, and the relative movement between the human body and the chair back will make the clothes of the user be pulled up, thus bringing the uncomfortable feeling.

[0003] In order to solve the technical problem, the Chinese invention patent publication text with the publication number of CN116602516A discloses a sliding chair back, which comprises a chair back support frame connected to the lower end of the tilting tray, and a chair back skeleton longitudinally slidingly arranged on the front end of the chair back support frame through a sliding back assembly; the sliding back assembly comprises a sliding base; the front end surface of the sliding base is slidingly connected with the rear end of the chair back skeleton, or the rear end surface of the sliding base is slidingly connected with the front end of the chair back support frame, and then in order to enable the chair back skeleton to automatically reset under the condition that the external force is removed after the relative sliding, an elastic reset member needs to be arranged, which can upwardly support the chair back skeleton. The sliding chair back retains the sliding back function of the seat, avoids the relative movement between the human body and the chair back. On this basis, the scheme further considers that the seat using the above-mentioned sliding back assembly will lack effective support for the waist during use, and thus is further improved. SUMMARY

[0004] In order to solve the above-mentioned problems, the first purpose of the utility model is to provide a sliding back and waist lifting device, the scheme links the sliding back and the waist lifting structure, so as to simultaneously realize the effective support for the waist by the sliding back and improve the seat riding comfort.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model discloses a backrest sliding and lumbar supporting device, which comprises a sliding base directly or indirectly arranged on a backrest support frame and a backrest frame arranged on the sliding base, wherein a lumbar supporting assembly is connected to the sliding base below the backrest frame through a lumbar supporting mechanism, the upper end of the lumbar supporting mechanism is hinged to the sliding base, the lumbar supporting mechanism can be vertically lifted along with the sliding base, a guide member is arranged in the downward path of the lumbar supporting mechanism, and the guide member acts on the lumbar supporting mechanism to rotate the lumbar supporting mechanism forward along the hinged end of the upper end and support the lumbar supporting assembly.

[0007] The utility model discloses the above technical scheme, and the technical scheme relates to a backrest sliding and lumbar supporting device, which comprises a sliding base directly or indirectly arranged on a backrest support frame and a backrest frame arranged on the sliding base, wherein a lumbar supporting assembly is connected to the sliding base below the backrest frame through a lumbar supporting mechanism, the upper end of the lumbar supporting mechanism is hinged to the sliding base, the lumbar supporting mechanism can be vertically lifted along with the sliding base, a guide member is arranged in the downward path of the lumbar supporting mechanism, and the guide member acts on the lumbar supporting mechanism to rotate the lumbar supporting mechanism forward along the hinged end of the upper end and support the lumbar supporting assembly.

[0008] On this basis, the lumbar supporting mechanism is arranged on the sliding base, that is, the upper end of the lumbar supporting mechanism is hinged to the sliding base. During use, the lumbar supporting mechanism vertically slides along with the sliding base, the guide member supports the lumbar supporting mechanism downward, so that the lumbar supporting mechanism rotates forward along the hinged end of the upper end, and the lumbar supporting assembly is thereby pushed out forward. In this way, during the reclining of the seat, the backrest frame and the sliding base connected thereto slide downward relative to the backrest support frame under the friction of the human back, at which time the lumbar supporting assembly is pushed out by the lumbar supporting mechanism to support the waist of the occupant. That is, the backrest sliding and lumbar supporting device is linked with the lumbar supporting structure, so that the waist is effectively supported during the backrest sliding, and the comfort of the seat is improved.

[0009] As a preferred embodiment, a fixing plate is further arranged for being fixed to the backrest support frame, and the sliding base is arranged on the fixing plate to slide up and down. The end of the fixing plate extending downward is provided with the guide member, or the guide member is arranged on the backrest support frame below the lumbar supporting mechanism. In the present embodiment, the fixing plate is used as a mounting transition piece between the backrest support frame and the backrest frame, and the sliding base is arranged on the fixing plate to slide up and down. In this way, the backrest sliding and lumbar supporting device assembled with the sliding base can be preassembled before leaving the factory, and the user only needs to assemble the backrest sliding and lumbar supporting device and the backrest support frame. By arranging the fixing plate, the backrest frame, the lumbar supporting assembly and the backrest support frame can be packaged separately, so that the packaging, storage and packaging space are saved, and the transportation cost is reduced.

[0010] As preferred, the sliding base is connected with the chair back support frame or the fixed plate to which it is slidingly connected through a first elastic reset member, the elastic deformation direction of the first elastic reset member is arranged along the sliding direction of the sliding base, and the elastic force of the first elastic reset member upwardly supports or pulls the sliding base. Here, the first elastic reset member is arranged to enable the backrest framework to automatically reset in the case that the external force is removed after the relative sliding.

[0011] Further, in order to improve the smoothness of the sliding base sliding up and down, a roller or a ball is arranged on the chair back support frame or the fixed plate to roll, and the sliding base rolls relative to the chair back support frame or the fixed plate based on the roller or the ball.

[0012] In a specific embodiment, the guide member is constructed as a guide rail, the guide rail has a track surface gradually extending forward from top to bottom; the top waist mechanism is provided with a rolling component or a sliding component on the track surface; during the descending process of the sliding base, the rolling component or the sliding component moves along the track surface and makes the top waist mechanism rotate forward along the hinged end at the top end. In this scheme, the movement of the top waist mechanism is guided based on the operation of the rolling component or the sliding component on the top waist mechanism on the track surface, so that the forward and backward adjustment of the top waist mechanism is more smooth.

[0013] In a specific embodiment, the guide rail is provided with two pieces, the top waist mechanism is longitudinally arranged between the two guide rails, and the rolling component or the sliding component on the track surface is arranged on the two side walls of the top waist mechanism. In this way, when the sliding base and the top waist mechanism thereon between the two blocks slide downward, the rolling components or the sliding components on the two sides can simultaneously act through the two guide rails, so as to ensure the stable advance and retreat of the top waist mechanism.

[0014] As preferred, the top waist mechanism is further provided with a second elastic reset member for driving it to fold back. Here, the second elastic reset member drives the waist rest assembly to reset back, so that it can automatically reset in the case that the external force is removed. Specifically, one of the following two schemes can be adopted, scheme one is that the second elastic reset member is constructed as a torsion spring and arranged on the hinged end at the top end of the top waist mechanism; scheme two is that the second elastic reset member is constructed as a tension spring, the lower end of the tension spring is connected to the top waist mechanism, and the upper end is connected to the sliding base.

[0015] In a further refined scheme, the lower end of the sliding base is provided with a hinged arm extending forward, the upper end of the top waist mechanism is constructed with an extension arm extending forward, and the extension arm end of the top waist mechanism is rotationally connected with the hinged arm of the sliding base. In this scheme, the hinged shaft point at the top end of the top waist mechanism is arranged forward through the cooperation of the extension arm and the hinged arm, and during the descending process of the top waist mechanism,

[0016] As preferred, the top waist mechanism is constructed as two parallel connecting rods, the upper ends of the two connecting rods are hinged to the sliding base, and the lower ends are hinged to the rear end of the waist rest assembly; the lower end of one of the connecting rods is rollingly or slidingly arranged on the track surface of the guide slide rail.

[0017] As preferred, the waist rest assembly comprises a waist rest adjusting seat and a waist rest body, the waist rest adjusting seat is arranged on the movable platform of the scissor frame, and the rear end of the waist rest body is longitudinally slidingly arranged on the waist rest adjusting seat. In this scheme, the waist rest assembly can realize step adjustment of the height of the waist rest by using the waist rest adjusting seat and the waist rest body. For details, refer to the waist rest sliding adjusting device disclosed in the Chinese Utility Model Patent with the publication number CN220174783U.

[0018] The second purpose of the utility model is to provide a seat, characterized in that: comprising the sliding back top waist device as described above. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a top waist state perspective view of the first structure of the sliding back top waist device.

[0020] Figure 2 It is a waist-retracting state perspective view of the first structure of the sliding back top waist device.

[0021] Figure 3 It is an exploded view of the first structure of the sliding back top waist device.

[0022] Figure 4 It is a waist-retracting state perspective view of the second structure of the sliding back top waist device.

[0023] Figure 5 It is a waist-retracting state perspective view of the second structure of the sliding back top waist device.

[0024] Figure 6 It is an exploded view of the second structure of the sliding back top waist device.

[0025] Figure 7 It is a component diagram of the second structure of the sliding back top waist device.

[0026] Figure 8 It is a waist-retracting state perspective view of the third structure of the sliding back top waist device.

[0027] Figure 9 It is a waist-retracting state perspective view of the third structure of the sliding back top waist device.

[0028] Figure 10 It is an exploded view of the third structure of the sliding back top waist device. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0030] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature with respect to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature with respect to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature with respect to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] Example 1:

[0035] As Figures 1-10 shown, the embodiment relates to a sliding back and lifting lumbar device, which comprises a sliding base 2 directly or indirectly slidingly arranged on a chair back support frame 1, and a backrest frame 3 arranged on the sliding base 2. The sliding back and lifting lumbar device arranges the backrest frame 3 on the sliding base 2, which can be directly slidingly arranged on the chair back support frame 1, or indirectly connected to the chair back support frame 1 by a fixing plate as mentioned below. Thus, the backrest frame 3 is allowed to slide relative to the chair back support frame 1, so as to avoid the relative movement between the human body and the chair back, and improve the comfort of use.

[0036] On this basis, the lumbar support assembly 6 in the scheme is connected to the lower end of the backrest frame 3 or the sliding base 2 below the backrest frame 3 through the lifting lumbar mechanism 5, the upper end of the lifting lumbar mechanism 5 is hinged to the backrest frame 3 or the sliding base 2, and the lifting lumbar mechanism 5 can be longitudinally lifted and lowered with the sliding base 2. A guide member 7 is further arranged in the descending path of the lifting lumbar mechanism 5, and the guide member 7 acts on the lifting lumbar mechanism 5 to make it rotate forward along the hinged end of the upper end and support the lumbar support assembly 6 during the descending process of the lifting lumbar mechanism 5 with the sliding base 2. The scheme arranges the lifting lumbar mechanism 5 on the sliding base 2, i.e. the upper end of the lifting lumbar mechanism 5 is hinged to the sliding base 2. During use, the lifting lumbar mechanism 5 slides longitudinally with the sliding base 2, and the lifting lumbar mechanism 5 is supported forward by the guide member 7 when passing through the guide member 7, so as to make the lifting lumbar mechanism 5 rotate forward along the hinged end of the upper end, and the lumbar support assembly 6 is thus pushed out forward. In this way, during the reclining process of the seat, the backrest frame 3 and the sliding base 2 connected thereto slide downward relative to the chair back support frame 1 due to the friction force of the human back, and at this time the lifting lumbar mechanism 5 pushes out the lumbar support assembly 6 to support the waist of the occupant. That is, the scheme links the sliding back and the lifting lumbar structure, so as to realize effective support of the waist while sliding back, and improve the comfort of seat occupancy.

[0037] As Figure 3 shown, the embodiment relates to a sliding back and lifting lumbar device, which comprises a sliding base 2 directly or indirectly slidingly arranged on a chair back support frame 1, and a backrest frame 3 arranged on the sliding base 2. The sliding back and lifting lumbar device arranges the backrest frame 3 on the sliding base 2, which can be directly slidingly arranged on the chair back support frame 1, or indirectly connected to the chair back support frame 1 by a fixing plate as mentioned below. Thus, the backrest frame 3 is allowed to slide relative to the chair back support frame 1, so as to avoid the relative movement between the human body and the chair back, and improve the comfort of use.

[0038] Further, the sliding base 2 is connected with the chair back support frame 1 or the fixed plate 4 through the first elastic reset member 21, the elastic deformation direction of the first elastic reset member 21 is arranged along the sliding direction of the sliding base 2, and the elastic force of the first elastic reset member 21 upwardly supports or pulls the sliding base 2. Here, the first elastic reset member 21 is arranged to automatically reset the backrest framework 3 after the relative sliding. The first elastic reset member 21 shown in the figure is a tension spring, the upper end of the tension spring is connected to the chair back support frame 1 or the fixed plate 4, and the lower end is connected to the sliding base 2; the elastic force of the tension spring is used to pull the sliding base 2 upwardly. Further, in order to improve the smoothness of the sliding base 2 in the up-down sliding, the chair back support frame 1 or the fixed plate 4 is arranged with the roller 22 or the ball, and the sliding base 2 rolls relative to the chair back support frame 1 or the fixed plate 4 based on the roller 22 or the ball.

[0039] In Figures 1-10 In the specific embodiment shown, the guide member 7 is constructed as a guide rail, the guide rail has a track surface 71 gradually extending forward from top to bottom. The top waist mechanism 5 is arranged with a rolling or sliding component on the track surface 71. During the downward movement of the sliding base 2, the rolling or sliding component moves along the track surface 71, and makes the top waist mechanism 5 rotate forward along the upper end of the hinged end. In this scheme, based on the operation of the rolling or sliding component on the top waist mechanism 5 on the track surface 71, the movement of the top waist mechanism 5 is guided, and the forward and backward adjustment of the top waist mechanism 5 is more smooth.

[0040] In the specific embodiment, the guide rail is provided with two, the top waist mechanism 5 is arranged between the two guide rails in the longitudinal direction, and the rolling or sliding component 51 on the two side walls of the top waist mechanism 5 is arranged on the track surface 71. In this way, when the sliding base 2 and the top waist mechanism 5 thereon between the two blocks slide downwardly, the rolling or sliding components 51 on the two sides can simultaneously act through the two guide rails, so as to ensure the stable advance and retreat of the top waist mechanism 5.

[0041] In addition, the top waist mechanism 5 is further arranged with a second elastic reset member 52 for driving it to fold back. Here, the second elastic reset member 52 drives the waist rest assembly 6 to reset backwardly, so as to automatically reset under the condition of removing external force. Specifically, one of the following two schemes can be adopted, scheme one as shown in Figure 3 The second elastic reset member 52 is constructed as a torsion spring and arranged on the hinged end of the upper end of the top waist mechanism 5. Scheme two as shown in Figure 6 and 7 The second elastic reset member 52 is constructed as a tension spring, the lower end of the tension spring is connected to the top waist mechanism 5, and the upper end is connected to the sliding base 2.

[0042] InFigures 4-7 In the second refinement shown, the lower end of the sliding base 2 is provided with a hinged arm 23 extending forward, and the upper end of the top waist mechanism 5 is constructed with an extension arm 53 extending forward, and the end of the extension arm 53 of the top waist mechanism 5 is rotationally connected with the hinged arm 23 of the sliding base 2. In this scheme, the hinged shaft point of the upper end of the top waist mechanism 5 is arranged forward through the cooperation of the extension arm 53 and the hinged arm 23, and in the descending process of the top waist mechanism 5,

[0043] In Figures 8-10 In the third refinement shown, the top waist mechanism 5 is constructed as two parallel connecting rods 54, the upper ends of the two connecting rods 54 are hinged to the sliding base 2, and the lower ends are hinged to the rear end of the waist rest assembly 6. The lower end of one of the connecting rods 54 is rollingly or slidingly arranged on the track surface 71 of the guide rail.

[0044] In addition, the waist rest assembly 6 includes a waist rest adjusting seat arranged on the movable platform of the scissor frame, and a waist rest body 62, the rear end of which is longitudinally slidingly arranged on the waist rest adjusting seat; in this scheme, the waist rest assembly 6 adopts the waist rest adjusting seat and the waist rest body 62 to realize the gear adjustment of the waist rest height, and the waist rest sliding adjusting device disclosed in the Chinese Utility Model Patent with the publication number “CN220174783U” can be specifically referred to. In Figures 1-10 In the alternative shown, the rear end of the waist rest body 62 in the waist rest assembly 6 is longitudinally slidingly arranged on the top waist mechanism 5.

[0045] Embodiment 2:

[0046] The second purpose of the utility model is to provide a seat comprising the back sliding and waist lifting device as described in embodiment 1.

[0047] In the description of the present specification, the description of the terms “one embodiment”, “some embodiments”, “example”, “specific example”, or “some examples” means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purposes of the utility model.

Claims

1. A backrest lifting device, comprising a sliding base (2) arranged on a chair back support frame (1) directly or indirectly in sliding manner, and a backrest framework (3) arranged on the sliding base (2); characterized in that: The lumbar support assembly (6) is connected to the lower end of the backrest framework (3) or the sliding base (2) below the backrest framework (3) through a lumbar support mechanism (5), the upper end of the lumbar support mechanism (5) is hinged to the backrest framework (3) or the sliding base (2), the lumbar support mechanism (5) can be lifted longitudinally along with the sliding base (2); a guide member (7) is arranged in the descending path of the lumbar support mechanism (5), the guide member (7) acts on the lumbar support mechanism (5) to make it rotate forward along the hinged end of the upper end and support the lumbar support assembly (6) during the descending process of the lumbar support mechanism (5) along with the sliding base (2).

2. The sliding dorsal spinal column device according to claim 1, characterized in that: The fixed plate (4) for being fixed to the backrest support frame (1) is further included, the sliding base (2) is arranged on the fixed plate (4) to slide up and down; the end of the fixed plate (4) extending downward is provided with the guide member (7), or the guide member (7) is arranged on the backrest support frame (1) below the lumbar support mechanism (5).

3. The sliding dorsal spinal column device according to claim 1 or 2, characterized in that: The sliding base (2) and the backrest support frame (1) or the fixed plate (4) connected with the sliding base (2) are connected through a first elastic reset member (21), the elastic deformation direction of the first elastic reset member (21) is arranged along the sliding direction of the sliding base (2), and the elastic force of the first elastic reset member (21) supports or pulls the sliding base (2) upward.

4. The sliding dorsal spinal column device according to claim 1 or 2, characterized in that: The backrest support frame (1) or the fixed plate (4) is provided with a roller (22) or a ball to roll, and the sliding base (2) rolls relative to the backrest support frame (1) or the fixed plate (4) based on the roller (22) or the ball.

5. The sliding dorsal spinal column device according to claim 1 or 2, characterized in that: The guide member (7) is constructed as a guide rail, the guide rail has a track surface (71) gradually extending forward from top to bottom; the lumbar support mechanism (5) is provided with a rolling part or a sliding part (51) on the track surface (71); during the descending process of the lumbar support mechanism (5) along with the sliding base (2), the rolling part or the sliding part (51) moves along the track surface (71) and makes the lumbar support mechanism (5) rotate forward along the hinged end of the upper end.

6. The sliding dorsal spinal column device according to claim 5, characterized in that: The guide rail is provided with two, the lumbar support mechanism (5) is arranged longitudinally between the two guide rails, and the rolling part or the sliding part (51) is arranged on the track surface (71) on the two side walls of the lumbar support mechanism (5).

7. The sliding dorsal spinal column device according to claim 5, characterized in that: The lumbar support mechanism (5) is further provided with a second elastic reset member (52) for driving it to fold back; the second elastic reset member (52) is constructed as a torsion spring and arranged on the hinged end of the upper end of the lumbar support mechanism (5), or the second elastic reset member (52) is constructed as a tension spring, the lower end of the tension spring is connected to the lumbar support mechanism (5), and the upper end is connected to the sliding base (2).

8. The sliding dorsal spinal column device according to claim 5, characterized in that: The lower end of the sliding base (2) is provided with a hinged arm (23) extending forward, the upper end of the lumbar support mechanism (5) is constructed with an extension arm (53) extending forward, and the end of the extension arm (53) of the lumbar support mechanism (5) is rotationally connected with the hinged arm (23) of the sliding base (2).

9. The sliding dorsal spinal column device according to claim 5, characterized in that: The top waist mechanism (5) is constructed as two mutually parallel connecting rods (54), the upper ends of the two connecting rods (54) are hinged to the sliding base (2), and the lower ends are hinged to the rear end of the waist rest assembly (6); the lower end of one of the connecting rods (54) is rollingly or slidingly arranged on the track surface (71) of the guide slide rail.

10. The sliding dorsal spinal column device according to claim 1, characterized in that: The rear end of the waist rest body (62) in the waist rest assembly (6) is longitudinally slidingly arranged on the top waist mechanism (5).

11. A seat, characterized by: The back sliding top waist device comprises the back sliding top waist device and the sliding backrest device.

Images