TW202136144A - Operation portion unit of load processing apparatus capable of being assembled into a box-type main body of a standard load processing apparatus to form a standard operation portion - Google Patents

Abstract

The invention provides an operation portion unit which may be assembled into a box-type main body of a standard load processing apparatus to form a standard operation portion, may replace an operation portion additionally manufactured for the load processing apparatus for a large load, and may be assembled into a frame body of a control portion of an additionally manufactured overloading portion in an original state to form another operation portion. The operation portion unit provided by this invention is provided with an operation rod shaft (1), provided with an operation rod (2) at one end and orthogonal with the operation rod (2); a flanged plate (5) provided with a bearing (4) of the operation rod shaft (1) for disposing the other end side of the operation rod shaft (1) from the front in a penetrating manner; a rotation limiting portion (CL) of the operation rod shaft (1) fixed to the operation rod shaft (1) at the rear of the flanged plate (5) and having a function of self-restoring the forward and reverse rotation of the operation rod shaft (1); a flanged cover (6), which is configured to wrap the back side of the flanged plate (5) in a manner of clamping the rotation limiting portion (CL) to make the front end side of the operation rod shaft (1) penetrating through a bearing (7); and a potentiometer (15) disposed on the back side of the flanged cover (6) to transmit the rotation of the operation rod shaft (1).

Description

Operating unit of load handling device

The present invention relates to the operation unit unit of the load handling device. It mainly utilizes a joint-type arm mechanism of a parallel link, and uses the driving force of a motor to perform telescopic, elevating, and rotating motions, and is supported on the front end of the arm mechanism. The load (load) of the load part of the load part is moved to an arbitrary position reached by the load part. The load part of the arm mechanism of the load handling device is formed by moving the load part of the load handling device to unitize the operation part that performs at least the lifting action. The operation of the load handling device Department unit.

In the past, a load handling device mainly composed of an articulated arm mechanism using a pantograph-shaped parallel link has been widely used as a simple crane-type labor-saving mechanism in many ways.

In the above-mentioned load handling device, most of the load parts are arranged adjacent to the load part equipped with a hook that supports the load installed on the front end side arm of the arm mechanism and instruct the movement of the arm mechanism (horizontal movement or lifting of the load part such as expansion and contraction of the arm). ) Is used in the operation part, and most of the above-mentioned operation part is provided with an operation lever that the operator (operator) can hold by his hand.

As an example widely known as the above-mentioned operation unit, there are operation units disclosed in Patent Documents 1 to 3. This operation part is provided on the outer wall surface of a substantially cube-shaped box (box-shaped body) that becomes the main body of the operation part, and an operation lever that displays a substantially T-shape on the plane can be freely rotated on its support shaft (operation lever shaft). It is formed that when the operating lever is rotated in the clockwise rotation direction, the upward command of the load portion is generated, and when the operating lever is rotated in the counterclockwise rotation direction, the downward command of the load portion is generated. It is provided in the form of a connecting member with a load part such as a hook.

In addition, the size of the cargo handled by the operation part of the above-mentioned load handling device is not very large. For example, the so-called standard type load handling device (hereinafter referred to as the standard type) in which the handled cargo weighs about 100 kg to 200 kg is installed Between the front end of the front-end side arm and the load section, it is convenient for operations such as unloading the load supported by the load section or suspending the load to move it in a plane.

However, when the handled cargo is a so-called heavy-duty load handling device weighing 500kg or more (hereinafter, also referred to as a heavy-duty load), the arm mechanism is also formed with a large and heavy structure with high strength. The type has also become large and different. The processed goods are large and different types. When the load part supports (grabs, hangs, etc.) the load, when the operation part is adjacent to the load part, the large or different types of goods supported by the load part become obstacles. It is extremely difficult to operate the operating lever of the operating part, or it may be impossible to operate.

As the above-mentioned arm mechanism has become large, the cargo handled has also become large or a different type of large-load load handling device is to replace the standard load part with the driving force of a motor or a cylinder to support or release the cargo. The power load section is to appropriately separate and position the control section that controls the action of the power load section from the front end of the arm on the front end side of the arm mechanism, so that the control section is connected to the above power load section through a connecting member such as an accessory. .

However, the operation part of the above-mentioned standard-type load handling device is a form in which all the constituent members of the operation part are arranged in a box-shaped main body arranged between the front end of the front-end side arm of the arm mechanism and the load part. On the other hand, in a heavy-duty load handling device, a power load part and a control part connected to this power load part through an accessory are provided, so the operation part that lifts and lowers the power load part supporting the cargo cannot be used in its original state. For the standard box-shaped operating part, a separately manufactured operating part is attached to the above-mentioned control part. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 4200304 [Patent Document 2] Japanese Patent Publication No. 8-367 [Patent Document 3] Japanese Utility Model No. 2578142

[The problem to be solved by the invention]

The present invention is to provide an operating unit, which can be integrated into the box-shaped main body of the standard load handling device to be formed in the standard operating part, and can be substituted for the heavy load handling device and attached to a separately manufactured It is a problem that a separate operation part of the control part of the power load part can be integrated into the frame of the control part in its original state to form the control part. [Means used to solve the problem]

The structure of the operating unit of the present invention developed for the purpose of solving the above-mentioned problems is characterized by: an operating lever shaft having an operating lever at one end and orthogonal to the operating lever; and a bearing provided with the operating lever shaft to connect the operating lever The other end side of the shaft is penetrated from the front of the flanged plate; behind the flanged plate is fixed to the operating lever shaft and has the function of self-recovery of the operating lever shaft forward and reverse. The rotation restricting portion; the back surface of the flanged plate is covered in the form of sandwiching the rotation restricting portion, and a flanged cover is arranged so that the front end side of the operating lever shaft penetrates through a bearing; and is provided on the belt The back of the flange of the cover is a potentiometer that drives the rotation of the above-mentioned operating lever shaft. The operating part unit of the present invention is characterized in that: a box-shaped main body of a standard operating part is formed by overlapping the two flanges of the flanged plate and the flanged cover into an integrated repeating flange part. Either one of the front panel of the control part of the power load part and the control part forms an installation part that can be fixed and installed with screws in its original state.

The rotation restricting portion of the operating lever shaft of the operating unit unit includes: a brake plate fixed to the operating lever shaft; an operation pin erected on the brake plate; and a torsion screw mounted on the operating lever shaft and operated by the operating pin Spring; and a restriction pin that restricts the movement of the torsion coil spring.

In addition, the rotation of the operating lever shaft transmitted by the potentiometer is performed through a drive gear provided on the front end of the operating lever shaft and a driven gear engaged with the drive gear provided on the thumb shaft of the potentiometer. transmission. [Effects of the invention]

The present invention is to overlap each flange of the flanged plate and the flanged cover of the constituent member of the operation unit unit into an integrated repeating flange portion, and has a box-shaped body forming a standard operation portion Either one of the side walls of the opening part or the front panel of the frame body of the control part forming the power load part that supports and releases the cargo with driving force, forming a mounting part that can be screwed to install the operation part unit of the present invention After that, an operating unit unit can be formed on the operating unit by only screwing the standard box-shaped body in the above-mentioned mounting unit, and the front panel of the frame of the control unit forming the power load unit can be formed with only screws It can be formed on the separate operation part by being fastened and installed on the above-mentioned installation part.

Next, an example of the implementation of the operation section unit of the present invention will be described with reference to the drawings.

In FIGS. 1 to 7, reference numeral 1 is an operation lever shaft provided with a lateral operation lever 2 and a direction orthogonal to the above-mentioned operation lever 2. The operating lever shaft 1 is formed in a hollow tube shape for weight reduction, and the side where the operating lever 2 is joined is formed as an inclined portion 1a, and the opposite side of the inclined portion 1a is formed in a stepped portion 1c through a permeable stage portion 1b. 3 is the coupling pin of the operating lever shaft 1 and the operating lever 2 described above. The operating lever 2 is connected to the operating lever shaft 1 through the coupling pin 3 at a position approximately 1/3 of its full length, and the operating lever shaft 1 and the operating lever 2 are coupled to form a substantially T-shaped plane display.

The large-diameter portion of the step portion 1c including the step portion 1b of the operating lever shaft 1 is provided with a flanged plate 5 via the bearing 4. The flanged plate 5 includes a plate portion 5a in which the bearing 4 is positioned on the center side of the center and a flange portion 5b on the peripheral side of the plate portion 5a. 5c is a coupling pin for fixing the bearing 4 to the plate portion 5a.

Reference numeral 6 denotes a flanged cover covering the flanged plate 5 from the rear surface side of the above-mentioned flanged plate 5 on the back side (the side opposite to the operating lever 2). The flanged cover 6 has at its center: a cover body portion 6a having a bearing 7 of a small diameter portion 1g supporting the step portion 1c of the operating lever shaft 1, and a cover body portion 6a disposed on the outer periphery of the cover body portion 6a The flange portion 6b.

The flange portion 5b (hereinafter, also referred to as the first flange portion 5b) of the flanged plate 5 and the flange portion 6b (hereinafter, also referred to as the second flange portion 6b) of the flanged cover 6 are It is formed with approximately the same outer diameter and approximately the same width, and is connected around the circumference by three joining screws 8 with a pitch of 120 degrees. 9 is in the middle of each of the above-mentioned coupling screws 8 overlapped and combined with the above-mentioned first flange portion 5b and the second flange portion 6b, and is installed to be installed by penetrating the first flange portion 5b and the second flange portion 6b at a pitch of approximately 120 degrees. The mounting hole of the part.

The plate portion 5a and the main body portion 6a of the flanged plate 5 and the flanged cover 6, which are connected in a repeating state with the first flange portion 5b and the second flange portion 6b by three coupling screws 8 In the formed space, the large-diameter portion of the step portion 1c of the operating lever shaft 1 is installed, and the rotation restricting portion CL of the operating lever 2 (operating lever shaft 1) is installed in the step portion 1c. Next, the rotation restricting part CL will be described.

The rotation restricting portion CL includes: a brake plate 10 mounted on the large-diameter portion of the step portion 1c of the operating lever shaft 1; a brake pin 11 that stops the angular rotation of the brake plate 10; Or the force of the operating lever shaft 1 that rotates in the reverse direction to return to the original position is transmitted to the torsion coil spring 12 of the operating lever shaft 1; the spring pin 13 that supports the spring force of the torsion coil spring 12; and the torsion coil spring 12 is pressed The spring pressing member 14 of the brake plate 10 (refer to FIG. 4). In addition, the rotation restricting portion CL shown in the perspective view of FIG. 4 is opposite to the vertical direction of the rotation restricting portion CL shown in the cross-sectional view of FIG. 1.

The brake plate 10 of the rotation restricting portion CL is shown in a front cross section in FIG. 4. The brake plate 10 is a base plate 10a that is substantially rectangular when viewed from the front, and is fixed to the key groove 1d of the step portion 1c of the operating lever shaft 1 through the key 10b, and the operating lever shaft 1 is integrated with the key groove 1d. 10c is a pressing spring of the key 10b. The lower side of the brake plate 10 shown in FIG. 4 is formed with a substantially arc-shaped guide groove 10d centered on the operating lever shaft 1, and the brake pin 11 is erected on the flanged plate 5 at a position where it enters the guide groove 10d.板部5a. The brake plate 10 that rotates integrally with the operating lever shaft 1 is rotatable in the forward and reverse directions so that both end portions 10 e and 10 f of the guide groove 10 d abut against the brake pin 11.

The torsion coil spring 12 protrudes toward the outer side of the torsion part which becomes a ring shape with the both ends of the spring as a leg. Hereinafter, the protruding part is referred to as the foot-shaped protrusion 12a. The torsion coil spring 12 has its annular portion externally fitted to the step portion 1c of the operating lever shaft 1, and is formed between the two leg-like protrusions 12a so as to be erected to the length of the guide groove 10d formed on the brake plate 10 The spring pin 13 at the edge of the middle part of the direction is clamped and positioned.

14 is a spring pressure member that pushes the torsion coil spring 12 toward the brake plate 10 side, and is formed to brake a substantially arc-shaped cover to the brake plate 10 with a screw 14a.

According to the above description, although the rotation restricting portion CL of the operating lever shaft 1 (operating lever 2) is constituted, its function is as follows. Now hold the operating lever 2 with your hand and rotate the operating lever shaft 1 in the clockwise direction of FIG. Up to the pin 11, no more clockwise rotation can be performed.

In the above-mentioned rotation, the torsion coil spring 12 installed on the operating lever shaft 1 is pressed by the spring pin 13 with its foot-like protrusion 12a in the direction of rotation of the operating lever shaft 1, and the torsion coil spring 12 is twisted and restored. force. The restoring force imparted to the coil spring 12 by torsion acts as a restoring force that restores the operation lever shaft 1 to the original position when the hand is released from the operation lever 2 by the elasticity of the coil spring 12.

In the counterclockwise rotation direction of the operating lever shaft 1 described above, it is also allowed to rotate until the left end of the guide groove 10 d (see FIG. 4) abuts against the brake pin 11. Along with this rotation, the spring pin 13 pushes the leg-shaped protrusion 12a of the torsion coil spring 12 in the twisting direction, so that the operating lever shaft 1 is automatically restored.

15 is a rotary potentiometer that is mounted on the back of the flanged cover 6 through the mounting base 16 and the mounting spacer 17. The mounting base 16 is provided with a mounting spacer 17, and the potentiometer 15 is mounted on the mounting base 16 with a mounting screw 17a. 16a is a mounting screw for mounting the mounting base 16 to the back of the flanged cover 6. The above-mentioned potentiometer is provided with a transmission mechanism for transmitting the rotation of the operating lever shaft 1 described earlier in order to rotate the electrical value (resistance value or voltage value) that accurately corresponds to the rotation angle from the output.

The transmission mechanism is composed of: a pinion 15b (driven gear) mounted on the thumb shaft 15a of the potentiometer 15 with a mounting screw 15c, and a large-diameter gear that engages with the pinion 15b, and is mounted on the above by a mounting screw 15c The driving gear 1e of the distal end portion of the operating lever shaft 1 (the small-diameter portion 1g of the step portion 1c) is formed. With this transmission mechanism, the operating lever 2 is held by hand, and the operating lever shaft 1 is rotated in the clockwise or counterclockwise rotation direction with the rotation restricting portion CL in the allowable range for forward and reverse angle rotation. The drive gear 1e is transmitted to the pinion gear 15b, so that the thumb shaft 15a of the potentiometer 15 is rotated in the clockwise rotation direction or the counterclockwise rotation direction.

Here, the electrical signal obtained by the angular rotation of the thumb shaft 15a of the potentiometer 15 in the clockwise rotation direction and the counterclockwise rotation direction is relative to the servo motor connected to the potentiometer 15 (although not shown) The control circuit of the lifting drive source of the load handling device is used to control the rotation direction of the above-mentioned servo motor (the lifting direction and the falling direction of the suspended cargo) and the number of revolutions in each rotation direction (the lifting and falling speed of the cargo) Signal used. 18 is an electrical coupler provided with wires connected to the three terminals of the potentiometer 15.

From the operation lever shaft 1 provided with the operation lever 2 described above to the potentiometer 15 installed through the mounting base 16 and the mounting spacer 17, the operation unit CU of the present invention in which the operation unit C is unitized is formed A part, therefore, will be described next with an example of the operation of the operation unit CU of the present invention.

In the flanged plate 5 and the flanged cover 6 described previously, the two flange portions 5b and 6b that are integrated by the coupling screw 8 penetrate the two flange portions 5b and 6b that are integrated Three mounting holes 9 are provided on the periphery in the example shown in the figure. There may be three or more mounting holes 9 described above. The mounting hole 9 has the operation unit CU of the present invention to be installed in the operation unit integrated with the operation unit L of the lower end of the arm A1 at the front end of the crane-type load handling device Ba with the pantograph arm mechanism exemplified in FIG. 6 The function of the mounting part when the side wall Ws of the box-shaped body Bm of C is used. F is the hook used for cargo hanging.

That is, a mounting hole (not shown) slightly larger than the cover body portion 6a of the flanged cover 6 is formed on the side wall Ws of the box-shaped body Bm, and the side wall is formed in advance at a position corresponding to the mounting hole 9 Screw holes (not shown), in the above-mentioned mounting holes of the side wall Ws, insert the operation unit CU of the present invention from the potentiometer 15 side, and connect the mounting holes 9 of the two integrated flange portions 5b, 6b to the above-mentioned mounting holes. The screw holes of the side wall are screwed into the installation screws (not shown), and the operation unit CU of the present invention can be installed in the box-shaped main body Bm of the operation unit C by this.

When the operation unit CU of the present invention is provided in the operation unit C of the box-shaped body Bm integrally with the load part L arranged at the lower end of the front end arm A1, the operator can be dexterous when lifting the load with the hook F of the load part L The hand on the side holds the operating lever 2 and attaches the other hand to the cargo to perform the lifting operation of the cargo so that it can be carried out in a natural posture.

On the other hand, when the handling cargo is large or different, when the cargo is hung on the hook F, the appearance of the cargo hinders the operation of the operating lever 2 and the lifting operation of the cargo is difficult to perform smoothly. Therefore, in the load handling device Ba for large cargo, the operation portion C and the hook F of the load portion L are replaced to form a large clamping device using an actuator such as a cylinder as a driving source or a power load portion of a chuck device. PL. However, when the power load part PL is used instead of the standard operation part C or hook F, in addition to the need for the control part Cp for operation or control of the power load part PL, and where to install the power load part PL for raising and lowering the power load part PL The problem of operation part C.

For this reason, the present invention installs an operating unit CU in a form in which the operating lever 2 and the potentiometer 15 are integrated through the flanged plate 5 and the flanged cover 6, and is installed in a housing adjacent to or separated from the power load portion PL. The front panel Pf of the control box (frame) Bc of the main body of the control part Cp is provided to form a separate operation part Ca to solve the above-mentioned problem.

Fig. 7 is at the lower end of the front end arm A1. In order to support large cargo, one example is to install a cylinder-type chuck device as the power load part PL, and a control part Cp that controls the operation of the power load part PL is coupled to the power An example of installation of the attachment attachment At of the load part PL. Here, in the mounting hole formed on the front panel Pf of the front panel Pf that houses the main body of the control unit, insert the operation unit CU of the present invention from the rear (the potentiometer 15 side), and lock the mounting screw into the mounting hole 9 The above-mentioned front panel Pf is inserted to form a separate operation portion Ca attached to the frame body Bc. In FIG. 7, Ch is a clamping chuck, Ai is a cylinder that becomes a driving source of the clamping chuck Ch, and Bu is an operation key including a switch of the control unit Cp.

The operator operates the operation keys Bu, such as a switch or knob for actuating the power load part PL of the panel Pf arranged on the front panel Pf of the control part Cp, to pick up or drop a large cargo on the power load part PL, and Similarly, the operating lever 2 of the operating portion unit CU of the present invention formed on the separate operating portion Ca of the front panel Pf is rotated, thereby performing the lifting action of the large cargo that is grasped by the fastening chuck Ch of the power load portion PL .

As described above, the present invention can be installed on either the side wall of the box-shaped main body of the standard operation section or the front panel of the control section of the power load section of a separately manufactured frame. In addition to a single type of operating unit unit applied to a standard operating unit, of course, various types of control units can be provided according to various types of power load units. Therefore, the operating unit provided in the control unit can also use a single type of unit. The operating unit of the invention forms a separate operating unit for heavy loads that is manufactured separately as needed.

1: operating lever shaft 2: Joystick 3: Installation pin 4: bearing 5: Plate with flange 6: Cover with flange 7: Bearing 8: Combination pin (screw) 9: Mounting hole CL: Rotation restriction part 10: Brake plate 11: brake pin 12: Torsion coil spring 13: Spring pin 14: Spring pressure piece 15: Potentiometer 16: installation table 17: Install the spacer 18: electrical connector Ba: Load handling device A1: Front side arm L: Load section C: Operation Department Bm: Box type main body Ws: side wall F: hook Ca: Another body operation part PL: Power Load Department Cp: Control part of the power load part Bc: Frame of the control unit Pf: The front panel of the frame

[Fig. 1] is a longitudinal sectional side view of an example of the operation part unit of the present invention. [Fig. 2] is a left side view of the operation unit of Fig. 1. [Fig. [Fig. 3] is a right side view of the operation unit of Fig. 1. [Fig. [Figure 4] is a front view of the brake plate of the rotation restricting part. [Fig. 5] is an exploded perspective view of the operation unit of the present invention. Fig. 6 is a perspective view of an example in which the operating unit of the present invention is applied to the operating unit of a standard load handling device. [Fig. 7] Fig. 7 is a perspective view of an example of a separate operation section in which the operation section unit of the present invention is separated from the front end side arm of the arm mechanism.

1: operating lever shaft

1a: Inclined part

1b: Stage

1c: step part

1d: keyway

1e: drive gear

1g: small diameter part

2: Joystick

3: Installation pin

4: bearing

5: Plate with flange

5a: Board

5b: flange

5c: Combination pin

6: Cover with flange

6a: Cover body

6b: flange

7: Bearing

8: Combination pin (screw)

9: Mounting hole

10: Brake plate

10a: substrate

10b: key

10c: Push spring

11: brake pin

12: Torsion coil spring

12a: Foot-like protrusion

13: Spring pin

14: Spring pressure piece

15: Potentiometer

15a: thumb shaft

15b: pinion

15c: Mounting screws

16: installation table

17: Install the spacer

17a: Mounting screws

Claims (4)

An operating part unit of a load handling device, characterized by comprising: an operating lever shaft, one end of which is provided with an operating rod and orthogonal to the operating rod; The other end side is arranged through the front; the rotation restricting portion of the operating lever shaft is fixed to the operating lever shaft behind the flanged plate and has the self-recovery function of the forward and reverse rotation of the operating lever shaft; with a protrusion The edge cover is arranged to cover the back surface of the flanged plate with the rotation restricting portion sandwiched therebetween so that the front end side of the operating lever shaft penetrates through the bearing; and a potentiometer is provided on the flanged cover The back side drives the rotation of the above-mentioned operating lever shaft and is unitized. The operation portion unit of the load handling device according to claim 1, wherein the overlapping flange portion that integrates the flanges of the flanged plate and the flanged cover will form a standard type. Either the box-shaped body of the operation part and the front panel of the control part of the power load part form an installation part that can be fixed and installed with screws in its original state. The operation unit unit of the load handling device described in claim 1 or claim 2, wherein the rotation restricting portion of the operation lever shaft includes: a brake plate fixed to the operation lever shaft; and a spring pin erected on the brake Plate; a torsion coil spring, installed on the operating lever shaft to be twisted by the spring pin; and a brake pin, formed by restricting the rotation of the brake plate. The operation unit unit of the load processing device according to any one of claim 1 to claim 3, wherein the rotation of the operating lever shaft transmitted by the potentiometer is through a drive gear provided at the front end of the operating lever shaft , And a transmission mechanism engaged with the driven gear of the drive gear provided on the thumb shaft of the potentiometer for transmission.

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