KR102631358B1 - A bench with automatic angle adjustment function - Google Patents

Abstract

The present invention relates to a bench equipped with an automatic angle adjustment function, comprising: a bench body having a seating portion and a backrest portion; An HMI (Human Machine Interface) connected to the bench body and detecting the user's intention; A linear actuator connected to the bench body and controlling the position or angle of the seat and backrest by moving forward and backward using a forward/reverse control circuit; and a controller that controls the operation of the linear actuator according to signals from the HMI.

Description

Bench with automatic angle adjustment function {A BENCH WITH AUTOMATIC ANGLE ADJUSTMENT FUNCTION}

The present invention relates to a bench equipped with an automatic angle adjustment function. More specifically, it is configured to adjust the angle of the bench by a linear actuator that is connected to the backrest and the seat and generates forward and backward displacement by a forward and reverse control circuit, thereby safely. This is about a bench equipped with an automatic angle adjustment function that not only allows various settings of the bench angle and saves time on changing the angle, but also allows you to easily adjust the bench angle in real time during exercise.

The quality of life has improved with the development of civilization, but the physical activity of modern people is rapidly decreasing due to the increase in sedentary life and repeated stress.

Lack of physical activity increases the risk of exposure to various adult diseases (exercise deficiency diseases), and the role and necessity of exercise is more important than ever in preventing and overcoming these adult diseases and further leading a healthy life. Everything is emphasized.

In the 「2017 National Sports Participation Survey」 conducted by Statistics Korea, the participation rate in regular sports activities at least once a week was 59.2%, and the participating sports were walking (31.8%), mountain climbing (17.0%), and bodybuilding (14.7%). In this order, it can be seen that people's participation in bodybuilding (hereinafter referred to as "weight training") is high.

In this way, weight training is widely expanding as an exercise to improve physical strength and health in fitness centers at sports sites, etc., and its popularity is gradually increasing not only for health, such as improving strength and muscle function, and controlling weight and body shape, but also for aesthetic purposes. there is.

In addition, it delays the decline in muscle function and strength due to aging, reduces the risk of sports injuries, has a positive effect on preventing and reducing the prevalence of osteoporosis, and prevents and alleviates back pain, and improves exercise performance ability and confidence. It brings benefits in various aspects such as:

Meanwhile, among weight training methods, resistance exercise is known to be very effective. It is widely known to professional athletes as well as the general public and is used with various strength training equipment.

In other words, weight training using various types of muscular exercise equipment such as weight machines, smith machines, cable machines, etc. is free weight exercise (dumbbell, Not only is it safer and more convenient to perform than strength training using a barbell, etc., but it also has the advantage of being able to isolate and train the relevant muscle group when the goal is to strengthen weak muscles.

Among the above-mentioned strength exercise equipment, conventional exercise equipment in which the user lies on his back and lifts a barbell or dumbbell to strengthen the upper body exercise is used to change the angle of the bench according to the change in posture when the user wants to change the posture of the bench. To maintain the angle, the bench is deformed to the required angle by removing the fixed pin, and then the pin is inserted again to fix the changed angle, so that the deformed angle is fixed.

However, this bench press machine is designed to have a certain amount of high weight to increase stability during exercise, and therefore, the task of pulling out the pin to adjust the angle of the bench, rotating the bench, and then inserting the pin again is quite laborious for the user. It is a laborious process, and accidents due to heavy weight frequently occur during this work, so there is always a risk.

Therefore, by including a linear actuator that adjusts the angle of the seat and backrest by moving forward and backward using an HMI that detects the user's intention and a forward/reverse control circuit in the backrest and seating portion of the bench, the angle of the bench can be adjusted safely without accident. There is a need for the development of a bench equipped with an automatic angle adjustment function that not only allows for various settings and saves the time required to change the angle, but also allows the bench angle to be easily adjusted in real time during exercise.

[Patent Document] KR 20-0314329 (registration date: May 13, 2003)

In order to solve the above problems, the present invention includes a linear actuator that is connected to the HMI and the bench body and moves forward and backward by a forward/reverse control circuit to adjust the angles of the seat and backrest, and the linear actuator uses an electric motor. It is configured to control the angle of the seat and backrest by controlling the inflow and outflow of the fluid supplied to the cylinder by controlling the forward and reverse displacement of the cylinder, thereby manipulating the heavy bench to adjust the angle of the bench during exercise. This bench is equipped with an automatic angle adjustment function that not only allows various bench angle settings safely by preventing accidents that frequently occur with conventional strength training equipment, but also allows the bench angle to be easily adjusted during exercise, saving time required to change the angle. The purpose is to provide.

A bench equipped with an automatic angle adjustment function according to an embodiment of the present invention to achieve the above object includes a bench body having a seating portion and a backrest portion; An HMI (Human Machine Interface) connected to the bench body to detect the user's intention; A linear actuator connected to the bench body and controlling the position or angle of the seat and backrest by moving forward and backward using a forward/reverse control circuit; and a controller that controls the operation of the linear actuator according to signals from the HMI.

In addition, the bench equipped with the automatic angle adjustment function according to the present invention is characterized by including a forward and reverse control circuit that controls the electric motor forward and backward by the HMI to form forward and backward displacement of the linear actuator.

In addition, the linear actuator according to the present invention is characterized by being composed of one selected from a linear cylinder, a pneumatic cylinder, and a hydraulic cylinder that operates a ball screw by driving an electric motor.

In addition, the linear actuator according to the present invention is characterized by including a displacement sensor that measures forward and backward displacement of the linear actuator.

In addition, the controller according to the present invention is characterized in that it receives the displacement signal measured by the displacement sensor and implements feedback control so that the linear actuator can be fixed at the position or angle detected by the HMI.

In addition, the controller according to the present invention receives the displacement signal transmitted from the displacement sensor using an ADC (Analog to Digital Converter), calculates the error from the difference between the target position and the current position, and calculates the calculated error. The control input is calculated and the control input is controlled to stop the linear actuator at the target position or angle using a digital to analog converter (DAC).

According to the bench equipped with the automatic angle adjustment function according to the present invention as described above, it includes a linear actuator that adjusts the angle of the seating portion and the backrest of the bench body by moving forward and backward using a forward/reverse control circuit, thereby adjusting the angle of the bench during exercise. By preventing accidents that frequently occur with conventional strength training equipment that manipulates a weighted bench for adjustment, it is possible to safely set various bench angles, and the bench angle can be easily adjusted during exercise, saving time on changing the angle. There is.

In addition, by providing a displacement sensor on one side of the cylinder to measure the forward and backward displacement of the cylinder, position feedback control can be implemented so that the controller can receive the displacement signal measured by the displacement sensor and fix the cylinder at a preset displacement. There is an effect.

In addition, the electric motor and hydraulic cylinder are integrated into one unit, which has the effect of being very compact.

Figure 1 is a first configuration diagram showing the overall configuration of a bench equipped with an automatic angle adjustment function according to the present invention.
Figure 2 is a second configuration diagram showing the overall configuration of a bench equipped with an automatic angle adjustment function according to the present invention.
Figure 3 is a block diagram showing the use of a controller that controls the forward and backward displacement of the cylinder in a feedback manner.
Figure 4(a) is a first example showing the use state of a bench equipped with an automatic angle adjustment function according to the present invention.
Figure 4(b) is a second example showing the use state of a bench equipped with an automatic angle adjustment function according to the present invention.
Figure 4(c) is a third example diagram showing the use state of a bench equipped with an automatic angle adjustment function according to the present invention.
Figure 5 is a perspective view showing the overall configuration of a bench equipped with an automatic angle adjustment function according to the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. First of all, it should be noted that the same components or parts in the drawings are given the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the gist of the present invention.

Figure 1 is a first configuration diagram showing the overall configuration of a bench equipped with an automatic angle adjustment function according to the present invention, Figure 2 is a second configuration diagram showing the overall configuration of a bench equipped with an automatic angle adjustment function according to the present invention, and Figure 5 is a perspective view showing the overall configuration of a bench equipped with an automatic angle adjustment function according to the present invention.

The bench (1) equipped with the automatic angle adjustment function according to the present invention is a bench with a heavy load as the conventional bench press mechanism is configured as a manually operated type in which the user directly adjusts the angle to the desired angle by separating and reassembling the pins. It is an invention created to solve the problem of unsafe accidents due to the operation of (referred to as HMI) or the HMI detects the user's intention and automatically adjusts the angle of the bench.

Therefore, the bench equipped with the automatic angle adjustment function according to the present invention may include a bench body 100, an HMI 200, a linear actuator 310, and a controller 400, as shown in FIGS. 1, 2, and 5. You can.

The bench body 100 may include a seating portion 110 and a backrest portion 120 that can support the user's body when exercising.

In one embodiment, the bench body 100 has an HMI 200 disposed on one side so that the user can operate it, and a linear actuator 310 for adjusting the angles of the seating portion 110 and the backrest portion 120. It can be supported by . In another embodiment, the HMI 200 is built into the bench body 100 and can detect the user's intention without user manipulation. For example, when a user applies a small force to the backrest 120, a signal to move the backrest 120 in the corresponding direction may be transmitted while the force is detected.

Additionally, the bench body 100 may be a base structure that constitutes the exterior of the bench 1 equipped with an automatic angle adjustment function according to the present invention.

The HMI (Human Machine Interface) 200 is provided on one side of the bench body 100 so that a user can operate it.

Specifically, the HMI 200 is an abbreviation for human-machine interface and may be an operating means such as a display, dashboard, joystick, switch, or button.

Accordingly, the HMI 200 enables control of the linear actuator 310 that receives user input and adjusts the angle of the bench 1.

In another embodiment, as described above, the HMI 200 is built into the bench body 100 and can detect the user's intention without user manipulation. For example, when a user applies a small force to the backrest 120, a signal to move the backrest 120 in the corresponding direction may be transmitted while the force is detected.

The linear actuator 310 according to the present invention is connected to the bench body 100 as shown in FIG. 1, and moves forward and backward by the forward/reverse control circuit 320 to move the seating portion 110 and the backrest. It is configured to adjust the angle of the unit 120.

In addition, the linear actuator 310 can be of a linear cylinder type, a pneumatic cylinder type, and a hydraulic cylinder type that operates a ball screw by driving an electric motor. In this specification, the linear cylinder type will be described.

The linear actuator 310 is configured so that one side is connected to the bench body 100.

Specifically, the linear actuator 310 is arranged to connect the seating portion 110 and the backrest portion 120 of the bench body 100 and the ground, and generates forward and backward displacement by the forward and reverse control circuit 320. This makes it possible to implement the angle of the bench 1 that matches the signal from the HMI 200.

Additionally, the linear actuator 310 may be equipped with a displacement sensor 311 that measures forward and backward displacement of the linear actuator 310.

The displacement sensor 311 is placed on one side of the linear actuator 310, measures the forward and backward displacement of the linear actuator 310, and transmits the measured displacement value to the controller 400, so that the controller 400 allows the user to It is possible to implement posture control feedback so that the bench reaches a set position or angle.

The forward and reverse control circuit 320 is configured to control the linear actuator 310 forward and backward by the HMI 200 to generate forward and backward displacement.

Figure 3 is a block diagram showing the use state of the controller 400 that controls the forward and backward displacement of the linear actuator 310 in a feedback manner.

The controller 400 according to the present invention is configured to control the operation of the linear actuator 310 according to signals from the HMI 200, as shown in FIG. 3.

Additionally, the controller 400 can receive a displacement signal measured by the displacement sensor 311 and implement position feedback control so that the linear actuator 310 can be fixed at a preset displacement.

In addition, the controller 400 receives the displacement signal transmitted from the displacement sensor 311 using an ADC (Analog to Digital Converter), calculates the error from the difference between the target position and the current position, and calculates the calculated error. The control input is calculated by inputting, and the control input is controlled to stop the linear actuator 310 at the target position using a digital to analog converter (DAC).

In one embodiment, the controller 400 is provided on one side of the bench body 100 and connected to the linear actuator 310 to control the operation of the linear actuator 310, and is configured to control the operation of the linear actuator 310. By receiving a signal, feedback control is implemented so that the bench body 100 moves to the position and angle intended by the user.

Additionally, the controller 400 can be connected to an analog-to-digital converter (ADC) and a digital to analog conversion (DAC) to control their operations.

The analog-to-digital converter (ADC) is a device that converts electrical analog quantities into digital quantities, and is used when inputting biological phenomena converted into voltage or current values, measured values of an automatic analyzer, etc. into a digital electronic calculator.

As an example, the controller 400 may be a PID controller, and when the controller 400 transmits a control signal to the motor driver 321, the motor driver may drive the linear actuator 310.

Figure 4(a) is a first example diagram showing the use state of a bench equipped with an automatic angle adjustment function according to the present invention, and Figure 4(b) is a second example showing the use state of a bench equipped with an automatic angle adjustment function according to the present invention. This is an illustration, and Figure 4(c) is a third example diagram showing the use state of a bench equipped with an automatic angle adjustment function according to the present invention.

Meanwhile, looking at the use state of the bench equipped with the automatic angle adjustment function according to the present invention as shown in FIG. 4, the controller moves to the standby state in FIG. 4(a) and the position set by the user or detected intention in FIG. 4(b). It can be seen that the bench position and angle are moved, and the angle movement is completed in Figure 4(c).

According to the bench equipped with the automatic angle adjustment function according to the present invention as described above, it includes a linear actuator that adjusts the angle of the seating portion and the backrest of the bench body by moving forward and backward using a forward/reverse control circuit, thereby adjusting the angle of the bench during exercise. By preventing accidents that frequently occur with conventional strength training equipment that manipulates a weighted bench for adjustment, it is possible to safely set various bench angles, and the bench angle can be easily adjusted during exercise, saving time on changing the angle. There is.

In addition, by providing a displacement sensor on one side of the cylinder to measure the forward and backward displacement of the cylinder, position feedback control can be implemented so that the controller can receive the displacement signal measured by the displacement sensor and fix the cylinder at a preset displacement. There is an effect.

In addition, the electric motor and hydraulic cylinder are integrated into one unit, resulting in a very compact design.

The terms and words used in the present specification and claims described herein should not be construed as limited to their usual or dictionary meanings, and the present inventor has appropriately used the concept of terms to explain his/her invention in the best possible way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle of definability.

Therefore, the configuration shown in the drawings and examples described in this specification is only one of the most preferred embodiments of the present invention, and does not represent the entire technical idea of the present invention, so they cannot be replaced at the time of filing the present application. It should be understood that various equivalents and variations may exist.

1: Bench with automatic angle adjustment function
100: Bench body 110: Seating part
120: backrest 200: HMI
310: Linear actuator 311: Displacement sensor
320: forward/reverse control circuit 321: electric motor driver
400: Controller

Claims (5)

A bench body having a seating portion and a backrest portion;
An HMI (Human Machine Interface) connected to the bench body to detect the user's intention;
A linear actuator connected to the bench body and controlling the position or angle of the seat and backrest by moving forward and backward using a forward/reverse control circuit; and
A controller that controls the operation of the linear actuator according to signals from the HMI; Including,
The linear actuator includes a displacement sensor that measures forward and backward displacement of the linear actuator,
When the controller transmits a control signal to the electric motor driver, the electric motor driver drives the linear actuator,
The controller is,
By receiving the displacement signal measured by the displacement sensor, feedback control is implemented so that the linear actuator can be fixed at the position or angle detected by the HMI,
The controller is,
Using an ADC (Analog to Digital Converter), the displacement signal transmitted from the displacement sensor is input, the error is calculated from the difference between the target position and the current position, the calculated error is input to calculate the control input, and the control A bench equipped with an automatic angle adjustment function, characterized in that the linear actuator is controlled to stop at the target position or angle using a DAC (Digital to Analog Converter) input.
According to clause 1,
The linear actuator,
A bench equipped with an automatic angle adjustment function, characterized in that it consists of one selected from a linear cylinder, a pneumatic cylinder, and a hydraulic cylinder that operates a ball screw by driving an electric motor.
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