Backrest swinging mechanism and cinema chair
By installing an elastic body and a rebound member on the backrest swing mechanism of the theater chair, the abnormal noise problem caused by metal collision in the limit mechanism is solved, achieving a more comfortable viewing experience and reducing manufacturing costs.
Patent Information
- Application Number
- CN202421112820.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The limit mechanism of the existing backrest swing chair is abnormally sounded due to metal collision, which affects the viewing experience.
An elastic body is provided on the limit pin of the backrest swing mechanism to make it contact the groove wall in the limit groove, thereby eliminating the sound of metal collision, and achieving the front and rear swing function through the design of the rebound member and the mounting plate.
It effectively eliminates the sound of metal collision between the limit pin and the groove wall, improves the comfort and experience of watching movies, and reduces the manufacturing cost of theater chairs.
Smart Images
Figure CN222264825U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seats, in particular to a backrest rocking mechanism and a cinema chair. Background Art
[0002] In order to improve people's riding experience and comfort, chairs with backrests that can swing back and forth are used in places such as theaters and cinemas. People can swing the backrests back and forth to make their backs more comfortable while watching movies. The above-mentioned swinging function is generally achieved by using parts with high manufacturing costs such as leaf springs. The seat is generally also provided with a limit mechanism, which is generally a combination of a limit plate, an arc groove and a limit pin, that is, an arc groove is opened on the limit plate, and the limit pin is inserted into the arc groove. When the limit pin abuts against the groove walls at both ends of the arc groove, it means that the backrest is swung forward and backward in place, but the limit plate and the limit pin are generally made of metal, so that when the limit pin collides with the groove walls at both ends of the arc groove, a metal collision sound is generated, and the sound produced will affect the viewing of the movie.
[0003] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content
[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a backrest rocking mechanism and a cinema chair, aiming to set an elastic body at the end of the limit pin to prevent the limit pin from directly colliding with the groove wall.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A backrest rocking mechanism comprises a first mounting plate for fixing to a backrest, a second mounting plate for fixing to a leg, a resilient member having two ends respectively fixed to the first mounting plate and the second mounting plate, a limit frame for fixing to an inner wall of an armrest, a limit pin for fixing to a backrest, and an elastomer arranged on the limit pin; a limit groove extending along the length direction of the limit frame is arranged in the limit frame, the elastomer is located in the limit groove, and is used to contact with a front groove wall or a rear groove wall in the limit groove.
[0007] The backrest rocking mechanism, wherein the elastic body is cylindrical, and the elastic body is wrapped around the outer end of the limiting pin.
[0008] The backrest rocking mechanism, wherein the limit pin is fixedly connected to the backrest via a third mounting plate; a nut is fixedly connected to the outer side wall of the third mounting plate, and the limit pin is provided with an external thread, which is threadedly connected to the nut.
[0009] The backrest rocking mechanism, wherein the first mounting plate includes a first vertical plate, a first horizontal plate fixedly connected to the end of the first vertical plate, and a second vertical plate fixedly connected to the end of the first horizontal plate; the rear side surface of the second vertical plate is used to be fixedly connected to the upper end of the rebound member.
[0010] In the backrest rocking mechanism, a reinforcing block is fixedly connected to the lower surface of the first horizontal plate, and the front side surface of the reinforcing block is fixedly connected to the rear side surface of the second vertical plate.
[0011] The backrest rocking mechanism, wherein the first vertical plate, the first horizontal plate and the second vertical plate are an integrally formed structure.
[0012] The backrest rocking mechanism, wherein the resilient member is made of spring steel.
[0013] The backrest rocking mechanism, wherein the second mounting plates are arranged in two pieces front and back, and the lower end of the spring steel is clamped between the two second mounting plates, and the spring steel is fixedly connected to the two second mounting plates.
[0014] A cinema chair comprises legs symmetrically arranged on both sides, armrests arranged on the corresponding legs, a seat bag rotatably connected to the two legs on both sides, the backrest swinging mechanism, and a backrest fixed to the backrest swinging mechanism.
[0015] The cinema chair, wherein a beverage placement slot is provided at the front end of the armrest.
[0016] Beneficial effects:
[0017] The utility model provides a backrest rocking mechanism and a cinema chair. By arranging a first mounting plate, a second mounting plate, and a resilient member with elastic deformation ability, the backrest has the function of rocking back and forth; by arranging a limit frame and a limit groove, and arranging an elastic body on the limit pin, when the limit pin and the elastic body move in the limit groove, the elastic body can play a role of silencing, avoiding abnormal noise, which is beneficial to improving the viewing experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 The utility model is a schematic structural diagram of a cinema chair.
[0019] Figure 2 The structure of the backrest rocking mechanism is shown after the outer leather of the backrest is hidden. Figure 1 .
[0020] Figure 3 The structure of the backrest rocking mechanism is shown after the outer leather of the backrest is hidden. Figure 2 .
[0021] Description of the main component symbols: 1-first mounting plate, 11-first vertical plate, 12-first horizontal plate, 13-second vertical plate, 14-reinforcement block, 2-second mounting plate, 3-rebound member, 4-limiting frame, 41-limiting groove, 5-third mounting plate, 51-nut, 6-limiting pin, 61-elastic body;
[0022] 10-leg, 20-armrest, 30-drink holder, 40-seat, 50-backrest. DETAILED DESCRIPTION
[0023] The utility model provides a backrest rocking mechanism and a cinema chair. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.
[0024] See also Figure 1-Figure 3 The utility model provides a backrest rocking mechanism, including a first mounting plate 1 for fixing to a backrest 50, a second mounting plate 2 for fixing to a leg 10, a resilient member 3 whose two ends are respectively fixed to the first mounting plate 1 and the second mounting plate 2, a limit frame 4 for fixing to the inner wall of an armrest 20, a limit pin 6 for fixing to the backrest 50, and an elastic body 61 arranged on the limit pin 6; a limit groove 41 extending along the length direction of the limit frame 4 is arranged in the limit frame 4, the elastic body 61 is located in the limit groove 41, and is used to contact with the front groove wall or the rear groove wall in the limit groove 41.
[0025] In actual application, a person sits on the seat bag 40, with the back against the backrest 50. When leaning back against the backrest 50, the backrest 50 drives the resilient member 3 to be squeezed through the first mounting plate 1, and at the same time, the backrest 50 drives the limit pin 6 and the resilient member 3 to move forward in the limit slot 41. When the resilient member 3 contacts the front slot wall of the limit slot 41, it means that the backrest 50 moves to the end. Since an elastic body 61 is added to the limit pin 6, and the elastic body 61 is made of soft rubber or silicone, it can prevent the limit pin 6 made of metal from having a hard collision with the limit frame 4 also made of metal, thereby avoiding abnormal noise. At the same time, since the squeezed resilient member 3 has a tendency to restore its deformation, it can reversely drive the first mounting plate 1 and the backrest 50 fixed to the first mounting plate 1 to move forward, so that the limit pin 6 and the elastic body 61 move backward in the limit slot 41, thereby realizing the swing function of the backrest 50 at a certain angle.
[0026] In some embodiments, the elastic body 61 is cylindrical, and the elastic body 61 is wrapped around the outer end of the limit pin 6. Specifically, a plug hole can be opened in the center of the elastic body 61, and the limit pin 6 can be inserted into the plug hole in the form of interference fit, so that the elastic body 61 is wrapped around the outer end of the limit pin 6. The above assembly method is more convenient and firm.
[0027] See also Figure 3 In some embodiments, the limit pin 6 is fixedly connected to the backrest 50 through the third mounting plate 5; a nut 51 is fixedly connected to the outer wall of the third mounting plate 5, and an external thread is provided on the limit pin 6, and the external thread is threadedly connected to the nut 51. The first mounting plate 1 and the third mounting plate 5 are both fixedly connected to the skeleton structure of the backrest 50 to provide a rigid structure for the theater chair. The nut 51 has been welded to the third mounting plate 5 before leaving the factory, and the outside of the skeleton structure of the backrest 50 needs to be filled with sponge and leather, so that the nut 51 can be hidden inside the backrest 50. During assembly, the limit pin 6 can be fixed to the third mounting plate 5 by inserting the limit pin 6 into the center of the nut 51 and rotating the limit pin 6, and the assembly is quick.
[0028] See also Figure 2 In some embodiments, the first mounting plate 1 includes a first vertical plate 11, a first horizontal plate 12 fixedly connected to the end of the first vertical plate 11, and a second vertical plate 13 fixedly connected to the end of the first horizontal plate 12; the rear side surface of the second vertical plate 13 is used to be fixedly connected to the upper end of the resilient member 3. In practical applications, the first vertical plate 11 is used to be fixedly connected to the skeleton structure of the backrest 50 and is hidden inside the backrest 50 after the leather is covered, and the first horizontal plate 12 and the second vertical plate 13 are located outside the backrest 50 to facilitate the installation of the resilient member 3. Specifically, a plurality of openings are provided on the second vertical plate 13 and the resilient member 3, and quick fixation can be achieved by inserting bolts into the corresponding openings and tightening them with nuts.
[0029] See also Figure 2 In some embodiments, a reinforcing block 14 is fixedly connected to the lower surface of the first horizontal plate 12, and the front side of the reinforcing block 14 is fixedly connected to the rear side of the second vertical plate 13. The reinforcing block 14 is provided to improve the connection rigidity between the second vertical plate 13 and the first horizontal plate 12, so as to prevent the moviegoer from leaning too hard against the backrest 50, causing an irreversible change in the angle between the second vertical plate 13 and the first horizontal plate 12.
[0030] See also Figure 2In some embodiments, the first vertical plate 11, the first horizontal plate 12, and the second vertical plate 13 are an integrally formed structure. In the actual preparation process, after the first mounting plate 1 is cut according to the size, the first vertical plate 11, the first horizontal plate 12, and the second vertical plate 13 are formed by a bending machine to prepare an integrally bent first mounting plate 1, so as to achieve seamless connection, improve the structural rigidity of the first mounting plate 1, and thus extend the swing life of the swing mechanism.
[0031] In some embodiments, the resilient member 3 is spring steel. The comprehensive mechanical properties of spring steel are better than those of carbon steel, and its mechanical properties such as tensile strength, elongation, hardness, etc. are relatively excellent, and the cost is lower than that of leaf springs, which is conducive to reducing the manufacturing cost of the theater chair.
[0032] See also Figure 2 In some embodiments, the second mounting plate 2 is provided in two pieces, and the lower end of the spring steel is clamped between the two second mounting plates 2, and the spring steel is fixedly connected to the two second mounting plates 2. The upper part of the spring steel is fixedly connected to the second vertical plate 13, and the lower part of the spring steel is clamped between the two second mounting plates 2. The upper and lower parts of the spring steel can be fixed, so that only the middle part of the spring steel is retained as the part with deformation ability, and the deformation range of the spring steel can be controlled, that is, the swing range of the backrest 50 can be controlled.
[0033] See also Figure 1 The utility model also provides a cinema chair, including legs 10 symmetrically arranged on the left and right, armrests 20 arranged on the corresponding legs 10, a seat bag 40 rotatably connected to the two legs 10 on both sides, the backrest swing mechanism, and a backrest 50 fixedly connected to the backrest swing mechanism. Two backrest swing mechanisms are provided, and the two backrest swing mechanisms are respectively fixedly connected to the inner side walls of the corresponding legs 10. The legs 10 are large in size and can block the audience between the cinema chairs to provide a relatively independent viewing space. The armrests 20 can be used for audiences to rest on, and the armrests 20 can be flipped up and down at a certain angle around the rear end of the legs 10. The seat bag 40 is connected to the legs 10 through a return mechanism to achieve automatic return of the seat bag 40.
[0034] See also Figure 1 In some embodiments, a beverage placement slot 30 is provided at the front end of the armrest 20. As a seat for a theater or cinema, the beverage placement slot 30 is provided for users to place sundries such as beverages, paper towels, small garbage, and items such as mobile phones.
[0035] In summary, the utility model provides a first mounting plate 1, a second mounting plate 2, and a resilient member 3 with elastic deformation capability, so that the backrest 50 has the function of swinging back and forth; by providing a limit frame 4, a limit groove 41, and providing an elastomer 61 on the limit pin 6, when the limit pin 6 and the elastomer 61 move in the limit groove 41, the elastomer 61 can play a role of silencing, thereby avoiding abnormal noise, which is beneficial to improving the viewing experience.
[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0037] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.
[0038] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0039] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.
Claims
1. A backrest rocking mechanism, characterized in that: It includes a first mounting plate for fixing to a backrest, a second mounting plate for fixing to a leg, a resilient member having two ends respectively fixed to the first mounting plate and the second mounting plate, a limit frame for fixing to an inner wall of an armrest, a limit pin for fixing to a backrest, and an elastomer arranged on the limit pin; a limit groove extending along the length direction of the limit frame is arranged in the limit frame, the elastomer is located in the limit groove, and is used to contact with a front groove wall or a rear groove wall in the limit groove.
2. The backrest rocking mechanism according to claim 1, characterized in that: The elastic body is cylindrical and is wrapped around the outer end of the limiting pin.
3. The backrest rocking mechanism according to claim 1, characterized in that: The limit pin is fixedly connected to the backrest through the third mounting plate; a nut is fixedly connected to the outer side wall of the third mounting plate, and an external thread is arranged on the limit pin, and the external thread is threadably connected to the nut.
4. The backrest rocking mechanism according to claim 1, characterized in that: The first mounting plate includes a first vertical plate, a first horizontal plate fixedly connected to the end of the first vertical plate, and a second vertical plate fixedly connected to the end of the first horizontal plate; the rear side surface of the second vertical plate is used to be fixedly connected to the upper end of the resilient member.
5. The backrest rocking mechanism according to claim 4, characterized in that: A reinforcing block is fixedly connected to the lower surface of the first transverse plate, and a front side surface of the reinforcing block is fixedly connected to a rear side surface of the second vertical plate.
6. The backrest rocking mechanism according to claim 4, characterized in that: The first vertical plate, the first horizontal plate and the second vertical plate are an integrally formed structure.
7. The backrest rocking mechanism according to claim 4, characterized in that: The resilient member is made of spring steel.
8. The backrest rocking mechanism according to claim 7, characterized in that: The second mounting plates are arranged in two pieces at the front and rear, and the lower end of the spring steel is clamped between the two second mounting plates, and the spring steel is fixedly connected to the two second mounting plates.
9. A cinema chair, characterized in that: It comprises legs symmetrically arranged on the left and right, armrests arranged on the corresponding legs, a seat bag rotatably connected to the two legs on both sides, a backrest rocking mechanism as described in any one of claims 1 to 8, and a backrest fixed to the backrest rocking mechanism.
10. The cinema chair according to claim 9, characterized in that: The front end of the armrest is provided with a beverage placement groove.