TWM580024U - Air-floating type button for ergonomic clockwise and anti-clockwise starting tool - Google Patents

Abstract

The present invention provides an air-floating button reversing ergonomic starting tool, the air floating button is mainly provided with a gas valve in the starting tool and a button for controlling the gas valve to switch the air flow circuit, and the gas is made The valve adopts an air floating design that does not completely contact the inner wall; thereby, when the high pressure gas enters the corresponding forward air inlet path in the air valve, the starting tool is started to rotate forward, and when the motor is to be reversed, the button is pushed and pushed in. The portion of the button located in the air valve is displaced to block the forward air inlet path and converted into the reverse air inlet path, so that the high pressure gas can be performed by the reverse air intake path, so that the starting tool exhibits a reverse rotation. .

Description

Air-floating button reversing ergonomics starter tool

This creation is a starting tool, especially a starter tool with an air floating button that provides a fast forward and reverse switching function.

Press, starting tools are generally divided into four types: down pressure type, wrench type, elbow wrench and gun type. Either way, there is a forward/reverse switch, that is, a forward-locking screw, and a reverse-retracting screw. Taking a pneumatic screwdriver as an example, when the screw is locked, it is inevitable that there are mis-locking, sliding teeth and locks, etc., or the need to have a screw to be repaired, generally divided into two major categories of maintenance and production, especially It is able to quickly switch between the forward and reverse switches to improve work efficiency and productivity.

There are two kinds of positive reversing switches (commonly known as gas valves) that are commercially available: one is rotary and the other is button. The rotary type is mainly used for fixing the positive rotation lock screw, and occasionally the reverse rotation screw function is used, so the switching operation is slow; the button type can provide quick retracting screws, but most of them are used for erecting. Press type.

The above-mentioned rotary or button type forward/reverse button or switch is not disposed in the center of the pneumatic tool, and most of them are on the left or the right side. Generally, the user can only use the large one when holding the tool body with one hand. The thumb press controls the screwdriver to reverse. The actual operation is to hold the tool with one hand and four fingers to start the lock screw in the forward direction. When the reverse rotation is required, hold the tool with four fingers while pressing the switch with the thumb. Reversing and achieving the effect of retracting the screw, but its shortcomings Including: It is only suitable for right-handed users. It is difficult and inconvenient for left-handed users to operate. It may cause carpal tunnel syndrome in long-term use, but it is not suitable for human factors engineering. Secondly, it is a general button (S) or switch (gas). Most of the valves are designed with a piston mechanism. As shown in the first figure, the button (S) or the downward direction of the switch causes the internal piston (P1, P2) to form a reverse resistance effect with the pressure of the pneumatic flow, so under operation When the button (S) or the switch (valve) is pressed, the greater the pressure, the greater the resistance, which is likely to cause the operator's finger burden.

The inventor of the present invention has the inadequacies in the structure or setting of the buttons or switches that are used to control the starting and reversing tools of the above-mentioned conventional control, and it is based on years of manufacturing design experience, and after continuous trials, there is a more practical creation of this creation. Benefit the public.

The main purpose of this creation is to provide an air-floating button to reverse the human-induced starting tool to achieve simple, easy and labor-saving operation and use efficiency, and further to prevent the safety of the operator's hand injury.

In order to achieve the above object, the inventor of the present invention specially designed an air-floating button to reverse the ergonomic starting tool, and the air-floating button comprises a gas valve and a button disposed in the starting tool, and the valve is The three-layer structure includes: a first air valve having an air inlet for introducing an externally coupled high-pressure gas; and a second air valve coupled with the button and a spring and pushed by the button Displacement occurs, and the button is reset when the button is released; a third air valve is provided with more than one forward air inlet that enables the motor to rotate forward and a reverse air inlet that enables the motor to be reversely activated. And a gas valve ejector pin is driven to be displaced by the second gas valve; the second gas valve and the first gas valve and the third gas valve maintain a certain degree of clearance without complete contact to form an air floating state. By pressing or releasing the button, the button in the valve is pushed The forward air inlet or the reverse air inlet is located at the venting position, thereby controlling the high pressure gas to enter the ejector ejector displacement to cause the valve plate to open or close, so that the forward rotation of the starting tool can be controlled as required or Reverse state.

By pressing or releasing the button, the forward or reverse air inlet in the air valve is pushed to be in a venting position, thereby controlling the high pressure gas to enter the ejector pin displacement to actuate the gas. The valve plate is opened or closed so that the forward or reverse state of the starting tool can be controlled as desired.

This creation has the following advantages: 1. The button uses a parallel thrust, the size of the high pressure gas does not cause reverse resistance to the button, and due to the air floating effect of the design of the case, the friction coefficient resistance is smaller, so just press the button lightly. It is possible to switch to reverse, without increasing the pressure of the high-pressure gas, causing a large pressure, causing excessive pressure on the push button, making it difficult to operate, and causing finger pain. 2. The positive and negative switching design is at the center line of the starting tool. When you want to rotate forward, hold the starting tool under the five fingers and press the pressure to complete the locking screw. At the same time, the thumb moves quickly to the top of the starting tool. With four fingers holding the tool, you can switch to the reverse screw by the thumb operation. 3, can be pressed with the general type of tool, the hand does not need to change position, directly use the thumb control button to switch to reverse the retracting screw, also visible to the user's holding habits, use the index finger control button to switch to reverse The utility model can be used as a means of controlling the switching reversal, and the special purpose of the right hand or the left hand is not used, which not only conforms to the current human engineering, but also prevents the operator from spraining and generating a wrist tunnel. Syndrome. 5. When working on the line, when the lock screw is found to have a wrong lock or NG lock error, as long as the switch is reversed, the screw can be quickly and quickly operated to improve the working efficiency.

(1)‧‧‧Starting tools

(2)‧‧‧Motor

(3) ‧ ‧ clutch

(4) ‧‧‧Torque cylinder

(5) ‧‧‧ Connecting shaft

(6) ‧ ‧ thimble

(61) ‧‧‧Air valve plate

(7) ‧‧‧ gas valve

(71)‧‧‧First air valve

(711)‧‧‧ Air intake

(72) ‧‧‧Second air valve

(721) ‧ ‧ spring

(73)‧‧‧ Third air valve

(731)‧‧‧ Forward air intake

(732)‧‧‧Reversing air inlet

(74) ‧ ‧ gas valve thimble

(8)‧‧‧ button

The first figure is a schematic diagram of switching between the positive and negative hand pressing buttons of the conventional piston type.

The second figure is a schematic diagram of the air floating button of the present creation set in the starting tool.

The third picture is a schematic diagram of the principle of switching the positive and negative of the floating button of this creation.

The fourth picture is a schematic diagram of the structure and cross-section of the air-floating button that is not pressed.

The fifth picture is a schematic diagram of the structure and cross-section of the air-floating button that has been pressed.

Referring to the second figure, the present invention provides an air-floating button for reversing the ergonomics starting tool, mainly that the starting tool (1) is provided with a button (8) for controlling the positive and negative functions. In the present embodiment, the starting tool is described in detail by using a lower pressure pneumatic screwdriver. The specific configuration of the starting tool (1) includes at least: a motor (2), a clutch (3), and a torsion cylinder ( 4) A basic power, transmission and torque unit such as a connecting shaft (5) and a thimble (6), and a gas valve (7) is arranged above the motor (2) and is connected by a button for switching functions. (8) The device is worn, and at the same time, the ejector pin (6) is provided with a gas valve plate (61).

The general locking operation of the above starting tool (1) is: the operator holds the starting tool (1) with one hand and presses down, so that the thimble (6) is forced to be displaced upward to displace the gas valve plate (61). In an open state, the externally connected high-pressure gas is smoothly introduced into the starting tool (1), and the high-pressure gas enters the motor (2) via the air valve (7) to drive the motor (2) to form a forward rotation state. It is advantageous for the lock screw operation.

As shown in the second and third figures, the gas valve (7) of the present design is a three-layer structure, and further includes: a first gas valve (71) having a high pressure gas connecting the outside Introducing an air inlet (711); a second air valve (72), respectively coupled with the button (8) and a spring (721), and being pushed by the button (8) to generate a displacement, releasing the button ( 8) is reset by the spring (721) restoring force; a third air valve (73) is provided with more than one forward air inlet (731) for causing the motor (2) to rotate forward and the motor (2) Reverse the starting reverse air inlet (732); and a gas valve ejector (74), which is pushed by the second air valve (72) to displace the air valve plate (61) to form a ventilating state; in particular: The second air valve (72) in the air valve (7) and the first air valve (71) and the third air valve (73) are separated from each other by a certain degree of clearance without completely contacting, forming an air floating state.

By operating the pressing or releasing action of the button (8), the high pressure gas is pushed into the forward air inlet (731) or the reverse air inlet (732), and the displacement of the valve thimble (74) is controlled. The valve plate (61) is opened or closed to achieve the required forward or reverse rotation of the starting tool as required; the creation is specifically designed using the air-floating effect (7), mainly for the valve ( 7) The friction coefficient between the second air valve (72) and the first and third air valves (71, 73) becomes smaller, and the relative resistance also becomes smaller, so that the button (8) can be lightly pressed. The switching action of the gas valve (7) is performed to convert the forward rotation state into the reverse rotation state, and the pressure of the high pressure gas does not become large, and even if the pressure is large, the resistance when the button (8) is operated is excessively large, It is not easy to operate and causes finger pain.

Please refer to the fourth and fifth figures together. The actual operation of the air valve (7) and the button (8) of this design: when the hand holding tool (1) is applied downward, the connecting shaft (5) Pressing down, the thimble (6) and the valve plate (61) are pushed up to form an opening, so that the external high-pressure gas smoothly enters the gas valve (7) through the inlet of the first gas valve (71) (711) ), and then enter the forward air inlet (731) of the third air valve (73) to discharge into the motor (2) In this case, the motor (2) is in a forward rotation state and can be used for the locking screw operation. When the connecting shaft (5) reaches a predetermined specific torque, the valve plate (61) is acted upon by the clutch (3). The gas valve (7) is closed with the lower belt, and the motor (2) is stopped to complete the locking.

On the contrary, when the reverse operation of the starting tool (1) is to be performed, only the button (8) needs to be pushed down easily, and the second air valve (72) in the air valve (7) will close the forward rotation. The air port (731) is replaced with a venting position of the reverse air inlet (73), and the gas ejector pin (74) is pushed up, so that the gas valve plate (61) is also pushed up. When it is turned on, the high pressure gas enters the inlet port (711) of the first gas valve (71), and then enters the reverse air inlet port (732) of the third gas valve (73) and is discharged into the motor (2). Inside, at this time, the motor (2) assumes a reverse rotation state and can be used for the screw retracting operation; when the button (8) is released, the second air valve (72) is pushed back by the spring (721) to make it positive. The air inlet port (731) is reset, the gas valve ejector pin (74) also returns to its original position, and the gas valve plate (61) returns to its forward rotation function position.

As can be seen from the above, the air-floating button of the present invention mainly provides an operation mode that is easy to handle with one hand and can be easily applied to the button at the same time, thereby obtaining control of the forward and reverse states of the starting tool. The function of the positive rotation lock screw and the reverse rotation screw is convenient for the regular needs of various online operations of the screw lock operation; it is also very easy and labor-saving in operation, and is suitable for both right-handed and left-handed users. It can be used normally without any hindrance; in addition, the damage to the user's hand can be effectively reduced, which is an excellent creation that is convenient, safe and practical.

However, the above is only a preferred embodiment of the present invention, so the equivalent structural changes that apply to the scope of the present application and the scope of the patent application should be included in this creation. Within the scope of the patent.

Claims (2)

An air-floating button reversing a ergonomic starting tool, the air-floating button comprising a gas valve and a button disposed in the starting tool, the valve is a three-layer structure, including: The first air valve has an air inlet for introducing an externally connected high-pressure gas; a second air valve is combined with the button and a spring, and is pressed by an external force to generate displacement, and the external force disappears. Resetting by a spring action; a third air valve is provided with more than one forward air inlet for enabling the motor to rotate forward and a reverse air inlet for inverting the motor; and the second air The valve maintains a certain degree of clearance between the first valve and the third valve without complete contact to form an air floating state. For example, the air-floating button is reversed and the ergonomic starting tool is described in the first aspect of the patent application, wherein the gas valve further includes a gas valve ejector, which is displaced by the second valve.