Seat rocking mechanism

Abstract

The invention relates to a chair tilting mechanism used in monoblock office chairs that provides a rocking (tilt) movement. Figure 1

Description

1 TARIFF Seat rocking mechanism TECHNICAL AREA 5 The invention relates to office chairs in general. The invention is particularly relevant to office chairs with a monoblock structure, which can be adjusted up and down. The height adjustment lever also allows for a tilting motion. 10 This relates to the seat rocking mechanism that provides this function. STATE OF THE ART The ergonomics of chairs used in offices today have deteriorated due to prolonged sitting. And to provide comfort, there are various features. One of these features is... It is the rocking mechanism in the seat. The rocking mechanism mentioned refers to the seat itself. and allows the backrest to recline backwards at a fixed angle, usually This is a basic system found in economy class seats. It provides a gentle rocking motion while reclining. This system, which offers comfort, can also be adapted to the person's weight. 20 The current technology allows for the rocking motion of the seats using the following mechanical mechanisms: systems are used. - Lamellar Coupling Systems: In this system, the oscillation function is based on the interaction of two gears. This is achieved through a gripping mechanism created by passing lamellae through a grid. 25 In this mechanism, the stiffness-softness of the oscillating motion is adjusted by the lamellae. This can be done by tightening or loosening it. - Helical Spring and Compression Mechanism Systems: In this system, oscillation occurs. The movement is achieved via helical springs mounted on the main body. This is done by tightening the springs with a knob-type tightening mechanism or 30 The swing stiffness can be adjusted by loosening the release mechanism. - Rubber Stretch Elements: oscillating motion, placed inside the mechanism This is achieved with rubber elastic elements. However, this method is structural. Because it has a constant flexibility character, the stiffness of the movement or 2 allows the user to control the softness. He does not know. In current swinging mechanisms, the moment generated when the back is tilted backward. In lamellar clutch systems and helical spring structures that counteract the force, the movement is 5 The tightness can be adjusted by the user through tightening and loosening. However, this Various safety and ergonomic issues arise during the setup process. The user first... If the system is too loose when you lean back and create a moment while making the adjustment, the seat The backrest creates a risky situation for the user by giving the feeling of suddenly falling backward. This is why. Similarly, if the mechanism is too tight, the user's first movement takes 10 minutes. It is unable to start and requires readjustment. Rubber stretching. In systems where these elements are used, user weighting is variable. The different moment forces resulting from this ensure the same performance for every user. This cannot be accommodated, resulting in an ergonomically inadequate and unbalanced swing. It creates the movement. As a result, current technologies provide a safe initial movement 15 transition, user-independent optimum moment response and consistent ergonomics It is unable to provide this. According to the known state of the art, document EP4468919B1 describes oscillation for seats. It is related to the mechanism. The aforementioned rocking mechanism: 20 in the seat and / or backrest. at least one flexible functional body that can articulate and elastically change shape It has a functional body; a movable clamping element, and a free end. a configuration that includes an auxiliary part attached to at least one flexible functional housing It includes the device. The mechanism described in this document is for oscillatory motion. A part that can bend under load has been used. In this system, 25 by each user The initial movement cannot be initiated, resulting in an insufficient and unbalanced oscillatory motion. It is coming. Document number TR2020 / 00916, according to the user's different anthropometric measurements 30 at multiple points to meet the needs of comfortable working positions. Functional mechanism that allows for height adjustment and backrest angle adjustment. It is related to. The mechanism mentioned basically involves the plastic injection molding method. manufactured, lower and upper body parts that, when assembled, form the main body; the seat Control lever for adjusting height and backrest tilt; lower and upper body. 3 free back swing positioned within the main body consisting of a shaft. It consists of a spring that enables this. In this mechanism, the oscillating motion is under This is achieved by a helical spring located between the main body and the upper body. Therefore, this document describes the spring mechanisms mentioned in the current technology. It has disadvantages. 5 As a result, improvements are being made to the seat rocking mechanisms. Therefore, it will eliminate the disadvantages mentioned above and improve existing systems. New structures are needed to provide solutions. THE PURPOSE OF THE INVENTION The present invention meets the aforementioned requirements and overcomes all the disadvantages. with a seat rocking mechanism that eliminates the need for rocking and brings some additional advantages. It is related. 15 The main purpose of the invention is to create an upward-facing mechanism for use in monoblock office chairs. The height adjustment lever allows for both height adjustment and tilt (swing) movement. The goal is to reveal the mechanism that enables this. One aim of the invention is to take into account the user's weight and the force applied during back movement. The goal is to establish a mechanism that automatically balances itself. Thus... The rocking motion provides ideal comfort for every user without the need for any adjustments. And in ergonomics, the goal is to ensure its realization, continuity, and stability. Another aim of the invention is to create a product that is easy to manufacture, practical to use, and requires low maintenance. The goal is to develop a long-lasting and cost-effective oscillation mechanism. All the advantages mentioned above and explained in detail below. The present invention aims to achieve a rocking motion in the seats. 30 is the mechanism that provides; • the mechanism housing in which the mechanism is located and the mechanism housing the carrier body that connects it to the seat 4 • The carrier body that connects the mechanism body to the carrier body. bearing shaft holders connected to the housing and mechanism housing Bearing shafts that are connected between bearing shaft holders, • inside the mechanism housing, opposite each other in the shaft bearing spaces The mechanism shafts, positioned and connected by springs, 5 • located between the carrier body and the mechanism body, of the mechanism during oscillatory motion, the carrier body and the shafts of the mechanism body bearing that provides support between the mechanism and the body. elements A structure containing [the following] has been obtained. 10 The structural and characteristic features and all the advantages of the invention are given in the figures below. And thanks to the detailed explanation written with references to these figures, it becomes clearer. This will be understood as such. Therefore, the evaluation should also be based on these forms and details. This should be done taking the explanation into consideration. 15 BRIEF DESCRIPTION OF THE FIGURES The best way to utilize the advantages of the existing invention, together with its structure and additional elements. For understanding, it should be evaluated together with the figures explained below. It is necessary. 20 Figure 1 shows a general view of the seat mechanism, the subject of the invention, in its disassembled state. Figure 2 shows a general view of the seat mechanism, the subject of the invention, in its assembled state. REFERENCE NUMBERS 1. Carrier body 25 2. Mechanism housing 3rd Arm 4. Arm holder 5. Bearing shaft 6. Bearing bushing 30 7. Bearing shaft holder 8. Mechanism shaft 9. Spring 10. Spring connector 11. Body bearing element 12. Shaft bearing clearance 13. Shaft bearing element DETAILED EXPLANATION OF THE INVENTION This detailed description explains the preferred seat rocking mechanism of the invention. These structures are solely for the purpose of better understanding the subject and have no It is explained in a way that will not create a limiting effect. 10 The invention is a mechanism that enables the rocking motion of the seats; • the mechanism housing (2) and the mechanism in which the mechanism is located carrier body (1) which connects the body (2) to the seat • connecting the mechanism body (2) to the carrier body (1), 15 Bearing shaft holders (7) and mechanism connected to the carrier body (1) bearing connected between the housing (2) and the bearing shaft holders (7) miles (5), • shaft bearing spaces (12) opposite each other inside the mechanism housing (2) The mechanism shafts (8), which are positioned and connected by a spring (9), 20 • located between the carrier body (1) and the mechanism body (2), During the oscillation motion of the mechanism, the carrier shafts (8) of the mechanism that provides bearing between the body (1) and the mechanism body (2) Body bearing elements (11) It includes. 25 Figures 1 and 2 show a general overview of the mechanism in question in its disassembled state. It has both an appearance and an assembled appearance. In the mechanism in question... The mechanism is located inside a mechanism housing (2). The mechanism The body (2) is connected to the seat by a carrier body (1). The mechanism body 30 (2), with bearing shafts (5) connected to the gaps on both sides It is attached to the carrier body (1). In order to ensure this, the carrier body (1) Bearing shaft holders (7) are connected on it. During the oscillation motion smooth rotation of the bearing shaft (5) and controlled transmission of loads 6 To ensure bearing between the bearing shaft (5) and the bearing shaft holder (7) There are (6) zodiac signs. The mechanism is located on the sides of the mechanism housing (2), preferably two of which are present. For the positioning of the shaft (8), the shaft has two shaft bearing spaces (12) 5 It is located. The mechanism shafts (8) are connected by means of shaft bearing elements (13). The shaft bearing elements (13) are located in the mechanism housing (2). to reduce friction between the mechanism shafts (8) and the mechanism housing (2) and ensures that the oscillating motion occurs smoothly. The mechanism 10 located in the shaft bearing spaces (12) mentioned within the housing (2). Preferably, two springs (9) are connected between the mechanism shafts (8). Springs (9), resistance to the force created by tilting the back backward during the swinging motion. by creating a controlled and balanced oscillatory motion. It provides. The connection of the springs (9) to the mechanism shafts (8) is preferably made of zinc alloy. The mechanism is provided by spring connection elements (10) made of the material. 15 Body bearing elements (11) between the body (2) and the carrier body (1) The body bearing elements (11) are positioned during the oscillation motion. By providing bearing between the carrier body (1) and the mechanism body (2), it ensures smooth operation. and ensures that the movement takes place silently. The invention concerns a seat mechanism that includes a user's height adjustment mechanism. There is a lever (3) that allows it to be controlled manually. The mentioned lever (3) is connected to the mechanism body (2) by means of an arm holder (4). With the structure that is the subject of the invention, the springs (9) are divided into two separate groups and inside the mechanism. It is coupled with specially designed parts that are placed. Thanks to this structure, the spring (9) The need for the user to manually adjust the hardness is eliminated. It adjusts itself according to the user's weight and the force applied during the back movement. An automatic balancing mechanism is being developed. Thus, the oscillation is 30 The movement requires no adjustments, providing ideal comfort for every user. This is achieved through ergonomics, and its continuity and stability are increased.

Claims

7 REQUESTS 1. This is the mechanism that enables the rocking motion in the seats; its feature is: • the mechanism housing (2) and the mechanism in which the mechanism is located carrier body (1) 5 which connects the body (2) to the seat • Enabling the connection of the mechanism body (2) to the carrier body (1), bearing shaft holders (7) and connected to the carrier housing (1) between the mechanism housing (2) and the bearing shaft holders (7) connected bearing shafts (5), • 10 opposite shaft bearing spaces (12) inside the mechanism housing (2) mechanism shafts positioned and connected by a spring (9) (8), • located between the carrier body (1) and the mechanism body (2), during the oscillating motion of the mechanism, the carrier body (1) and By providing bearing between the mechanism body (2) 15 Body bearing elements that enable the movement to take place (11) It includes.

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