Operating apparatus

The operating device addresses the issue of substrate contamination by resin-sealing it within the sensor housing, ensuring reliable operation in harsh environments by preventing sand, dust, and rain accumulation, thus maintaining functional integrity.

WO2026063446A1PCT designated stage Publication Date: 2026-03-26KAWASAKI JUKOGYO KK
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-09-17
Publication Date
2026-03-26

AI Technical Summary

Technical Problem

Existing operating devices for construction machinery, such as excavators, are prone to accumulation of sand, dust, and rain on the substrate, which can affect its functionality due to exposure in harsh environments.

Method used

The operating device incorporates a resin-sealed substrate mounted on the ceiling surface within a sensor housing, preventing the accumulation of sand, dust, and rain, and includes a sensor mechanism to detect the tilting operation of an operating tool.

Benefits of technology

Prevents the substrate from being affected by environmental contaminants, ensuring reliable operation by maintaining the integrity of the substrate and enhancing the device's durability in harsh conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure JP2025032728_26032026_PF_FP_ABST
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Abstract

This operating apparatus comprises an operating device that is provided in a housing body so as to be capable of tilting relative to a housing including the housing body and a sensor housing portion, a plurality of push rods that are provided in the housing body so as to stroke in accordance with the tilt direction of the operating device, and a sensor mechanism that is provided in the sensor housing portion, detects the movement of each of the push rods, and calculates a tilting motion of the operating device on the basis of the detection results, wherein: the sensor mechanism further includes a board for calculating the tilting motion of the operating device; the housing body is disposed on one side in a first direction of the sensor housing portion; the sensor housing portion has an accommodating space for accommodating the board; the accommodating space has a ceiling surface on said one side in the first direction; and the board is resin-sealed and attached to the ceiling surface in the accommodating space of the sensor housing portion.
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Description

Operating device

[0001] The present disclosure relates to an operating device that operates by tilting an operating tool.

[0002] As an operating device used in construction machines such as excavators, for example, an operating lever as disclosed in Patent Document 1 is known. In the operating lever of Patent Document 1, when the lever part is tilted, a disk presses a rod via a piston to stroke it. A magnet is attached to the rod, and a magnetic sensor detects the stroke amount of the rod based on the movement of the magnet. Further, the operating lever includes a circuit board that amplifies a signal from the magnetic sensor.

[0003] Japanese Patent No. 7112385

[0004] In the operating lever of Patent Document 1, a housing space is formed in the lower part of the housing, and the substrate is disposed at an intermediate portion in the axial direction of the housing space. The operating lever is used in an environment exposed to sand, rain, and wind. Therefore, in the operating lever, sand, dust, and rain may enter the housing. If the sand, dust, and rain that enter accumulate on the substrate, it may affect the substrate. Therefore, an object of the present disclosure is to provide an operating device that can suppress the accumulation of sand, dust, and rain on the substrate.

[0005] The operating device of the present disclosure includes a housing including a housing main body and a sensor housing portion, an operating tool tiltably provided on the housing main body, a plurality of push rods provided on the housing main body so as to stroke respectively according to the tilting direction of the operating tool, and a sensor mechanism provided in the sensor housing portion for detecting the movement of each of the push rods and calculating the tilting operation of the operating tool based on the detection result. The sensor mechanism further includes a substrate for calculating the tilting operation of the operating tool. The housing main body is disposed on one side in a first direction of the sensor housing portion. The sensor housing portion has a housing space for housing the substrate. The housing space has a ceiling surface on one side in the first direction. The substrate is resin-sealed and attached to the ceiling surface in the housing space of the sensor housing portion.

[0006] According to this disclosure, the substrate is resin-sealed and mounted on the ceiling surface within the sensor housing. Because the substrate is resin-sealed, it is possible to prevent sand, dust, and rain from accumulating on the substrate. This prevents the substrate from being affected by sand, dust, and rain that accumulate on it. Furthermore, because the substrate is resin-sealed and mounted on the ceiling surface, it is possible to prevent liquids such as rain from remaining on the sealing resin.

[0007] According to this disclosure, it is possible to prevent sand, dust, and rain from accumulating on the substrate.

[0008] The above-mentioned purposes, other purposes, features, and advantages of this disclosure will become apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.

[0009] This is a perspective view showing the operating device of this embodiment. This is a cross-sectional view of the operating device of Figure 1 taken along the line II-II. This is a perspective view showing the operating device of Figure 1 divided into a mechanical part and a sensor part. This is a bottom view showing the operating device of Figure 1. This is an enlarged cross-sectional view showing an enlarged view of the mechanical part of the operating device of Figure 2. This is an enlarged cross-sectional view showing an enlarged view of the sensor part of the operating device of Figure 2. This is a cross-sectional view of the operating device of Figure 4 taken along the line VII-VII. This is an enlarged view showing an enlarged view of the area near the cover of the operating device of Figure 1. This is an enlarged view showing an enlarged view of the area near the cover of the operating device of another embodiment.

[0010] Hereinafter, the operating device 1 of the embodiment of the present disclosure will be described with reference to the aforementioned drawings. Note that the concept of direction used in the following description is for convenience of explanation and does not limit the orientation of the configuration of the present disclosure to that direction. Furthermore, the operating device 1 described below is merely one embodiment of the present disclosure. Therefore, the present disclosure is not limited to this embodiment, and additions, deletions, and modifications are possible without departing from the spirit of the present disclosure.

[0011] [Operating Device] The operating device 1 shown in Figure 1 is installed on construction machinery such as an excavator. More specifically, the operating device 1 is installed on a mounting base 4 of the driver's seat of the construction machinery, as shown in Figure 2. However, the operating device 1 is not limited to being installed on construction machinery, but may also be installed on other machinery. The operating device 1 is a so-called electric joystick. That is, the operating device 1 is equipped with an operating lever 12 that can be tilted by an operator such as a driver, as will be described in detail later, and the operating device 1 outputs an electrical signal corresponding to the tilting operation of the operating lever 12. In construction machinery, the direction and flow rate of hydraulic fluid flowing to actuators (e.g., boom cylinder and bucket cylinder) not shown are controlled according to the output electrical signal. The operating device 1 configured in this way includes a mechanical part 2 that is linked to the tilting operation and a sensor part 3 that detects the operation of the mechanical part 2. The operating device 1 is configured so that the mechanical part 2 and the sensor part 3 can be separated, as shown in Figure 3. The configuration of the operating device 1 configured in this way will be described in detail below.

[0012] As shown in Figure 2, the operating device 1 comprises a housing 11, an operating lever 12, a plurality of push rods 13, and a sensor mechanism 14. More specifically, the operating device 1 comprises a disc 15, a main body-side spring member 16, a main body-side spring seat 17, a plurality of guide members 18, a retaining plate 19, and a bellows cover 20 (see also Figure 1).

[0013] [Housing] The housing 11 is provided with the various components 12 to 19 described above. The housing 11 is, for example, a member extending along the axis L1, and includes a housing body 21 and a sensor housing section 22. The housing body 21, together with the operating lever 12 (described in detail later), a plurality of push rods 13, a disc 15, a body-side spring member 16, a body-side spring seat 17, a guide member 18, a retaining plate 19, and a bellows cover 20, constitutes the mechanical section 2. The sensor housing section 22, together with the sensor mechanism 14, constitutes the sensor section 3. The housing body 21 and the sensor housing section 22 are arranged in the housing 11 in one axial direction and the other, respectively, and the housing 11 can be divided into the housing body 21 and the sensor housing section 22. The axial direction is an example of a first direction, and is the direction in which the axis L1 extends. Furthermore, the housing 11 includes not only the housing body 21 and the sensor housing section 22, but also a guide bush 23 and a bottom cover 24. The various components of the housing 11 will be described in more detail below.

[0014] [Housing Body] The housing body 21 shown in Figures 2 and 3 is a member that extends in the axial direction and is formed, for example, in a prismatic shape. More specifically, the housing body 21 has a body portion 25 and a flange 26. The body portion 25 is formed, for example, in a prismatic shape with a four-lobed cross-section, and each corner of the side surface is a partially cylindrical surface. The body portion 25 also has a groove 25a. The groove 25a, which is an example of a wiring groove, is formed on each side of the body portion 25 between adjacent corner portions (i.e., in the intermediate portion) and is recessed in the radial direction. Thus, the body portion 25 is formed, for example, in a prismatic shape with a four-lobed cross-section and rounded corners.

[0015] The flange 26 is formed to protrude radially outward from the outer surface of the main body portion 25. In this embodiment, the flange 26 is formed at one axial end of the outer surface of the main body portion 25. As shown in Figure 4, the flange 26 is formed in a rectangular shape (square shape in this embodiment) when viewed from the bottom in the other axial direction. The flange 26 is also positioned so that its corners are located radially outside the groove 25a of the main body portion 25 when viewed from the bottom. Bolt holes 26a are formed at each corner of the flange 26. That is, the bolt holes 26a are positioned offset from each other by 90 degrees around the axis L1. As shown in Figure 2, the flange 26 is placed on, for example, the mounting base 4 of the driver's seat, and the operating device 1 is fastened to the mounting base 4 by bolts 5 inserted through the bolt holes 26a (see Figure 7, which will be described in detail later).

[0016] Furthermore, the flange 26 has multiple wiring holes 26b. The wiring holes 26b are holes through which the lever wiring 12g, which will be described in detail later, passes. In this embodiment, the flange 26 has two wiring holes 26b. More specifically, the wiring holes 26b are formed in the flange 26 at positions corresponding to the grooves 25a of the main body portion 25. In this embodiment, the wiring holes 26b are formed in the flange 26 radially inward from each of the two bolt holes 26a. The wiring holes 26b are connected to the bolt holes 26a by through grooves 26c. The through grooves 26c extend radially from the bolt holes 26a and penetrate axially, opening radially outward from the bolt holes 26a at the corners of the flange 26. Furthermore, the through groove 26c has a width in plan view that is approximately the same as the outer diameter of the lever wiring 12g, which will be described in detail later, allowing the lever wiring 12g to be inserted from the radially outer side and carried to the wiring hole 26b.

[0017] Furthermore, as shown in Figure 2, the housing body 21 has a plurality of body-side housing chambers 31 and a communication hole portion 32. The plurality of body-side housing chambers 31 are bottomed holes extending in the axial direction, as also shown in Figure 5, and each has an insertion opening 31a that opens in one direction in the axial direction. The plurality of body-side housing chambers 31 are arranged at equal intervals around the axis L1. The housing body 21 includes, for example, four body-side housing chambers 31, which are arranged at 90-degree intervals from each other around the axis L1. In this embodiment, each of the body-side housing chambers 31 is formed to correspond to the partially cylindrical corner portion of the housing body 21 in a plan view. That is, in the housing body 21, grooves 25a are formed between adjacent body-side housing chambers 31 to reduce weight according to their shapes.

[0018] Furthermore, the main body side housing chamber 31 gradually decreases in diameter from the insertion opening 31a and has a large diameter section 31b, a medium diameter section 31c, and a small diameter section 31d. The guide member 18, which will be described in detail later, is fitted into the large diameter section 31b, and the main body side spring seat 17, which will be described in detail later, is slidably fitted into the medium diameter section 31c. The main body side spring member 16, which will be described in detail later, is housed in the small diameter section 31d such that a part of it protrudes into the medium diameter section 31c. The communication hole 32 is formed at the bottom of the main body side housing chamber 31. The communication hole 32 is, for example, a hole formed coaxially with the axis of the main body side housing chamber 31 and penetrates the bottom of the housing body 21 in the axial direction.

[0019] [Sensor Housing Section] As shown in Figure 6, the sensor housing section 22 is formed, for example, in the shape of a cylindrical shape with a ceiling. The sensor housing section 22 is detachably attached to the housing body 21 such that its ceiling faces the housing body 21 and their axes coincide (i.e., each axis coincides with axis L1). More specifically, the sensor housing section 22 has a main body section 34, a plurality of cylinder sections 35, a partition wall 36, a supply and discharge passage 37, a labyrinth 38, and a housing space 39.

[0020] The main body portion 34 is formed in a cylindrical shape with a top and is detachably attached to the other axial side (i.e., the bottom side) of the housing body 21 so that their axes coincide. More specifically, the main body portion 34 is positioned so that its top surface 34a faces the bottom surface of the housing body 21. The main body portion 34 also has a plurality of mounting portions 34b on its top surface 34a, as shown in Figure 3. The mounting portions 34b are arranged, for example, at equal intervals (180 degrees in this embodiment) in the circumferential direction on the top surface 34a. The mounting portions 34b protrude from the top surface 34a in one axial direction. The mounting portions 34b are in contact with the bottom surface of the housing body 21 and are fastened to the housing body 21 by fastening members (not shown), such as bolts.

[0021] Furthermore, multiple through grooves 34c are formed on the side surface of the main body portion 34. In this embodiment, two through grooves 34c are formed on the side surface of the main body portion 34. As shown in Figure 4, the through grooves 34c are formed on the side surface of the main body portion 34 at positions corresponding to the recessed groove 25a and the wiring hole 26b. More specifically, the through grooves 34c are formed on the side surface of the main body portion 34 at equal intervals in the circumferential direction (i.e., 180 degrees), and in this embodiment, they are positioned circumferentially offset by 90 degrees from the mounting portion 34b. The through grooves 34c are recessed radially and extend axially on the side surface of the main body portion 34, and the lever wiring 12g, which will be described in detail later, is inserted through the through grooves 34c.

[0022] The cylinder portion 35 shown in Figure 2 has an internal bore, which is a sensor-side housing chamber 35a. A sensor rod assembly 41, which will be described in detail later, is inserted through the sensor-side housing chamber 35a so as to be able to reciprocate. In this embodiment, the sensor housing portion 22 contains the same number of cylinder portions 35 as the main body-side housing chambers 31, i.e., four cylinder portions 35. The four cylinder portions 35 are each formed on the top surface 34a of the main body portion 34. In this embodiment, the cylinder portions 35 are integrally formed on the top surface 34a so as to protrude from one axial side and the other axial side, respectively. The cylinder portion 35 is positioned so that its opening, the sensor-side opening portion 35b, faces the housing body 21 (i.e., in one axial direction) and its bottom is located on the other axial side. Each of the four cylinder portions 35 is positioned so that its sensor-side housing chamber 35a corresponds to each of the main body-side housing chambers 31. In other words, in this embodiment, the four cylinder portions 35 are arranged on the top surface 34a at 90-degree intervals from each other around the axis L1, and are positioned so that the axes of the corresponding sensor-side housing chamber 35a and body-side housing chamber 31 coincide. As a result, the sensor-side opening portion 35b faces the communication hole portion 32 of the body-side housing chamber 31.

[0023] The partition wall 36 is provided on the top surface 34a of the main body portion 34. The partition wall 36 surrounds the four cylinder portions 35 from the radially outer side. In this embodiment, the partition wall 36 has a four-leaf shape, the same as the outer shape of the housing body 21, when viewed from one axial direction in plan view. The partition wall 36 extends from the top surface 34a to the bottom surface of the housing body 21, forming an inner space 36a within it. More specifically, the outer shape of the partition wall 36 is smaller than the outer shape of the housing body 21. An engagement groove 25b is formed on the bottom surface of the housing body 21 (i.e., the bottom surface of the main body portion 25) corresponding to the outer shape of the partition wall 36. One end of the partition wall 36 is engaged with the engagement groove 25b around its entire circumference. This seals the inner space 36a. The partition wall 36 then surrounds the four cylinder portions 35 arranged in the inner space 36a. As a result, the partition wall 36 prevents liquids, contaminants, etc. from entering the inside of the partition wall 36 from the outside, and further from entering the sensor-side housing chamber 35a.

[0024] As shown in Figure 7, the air supply and discharge passage 37 connects the inside and outside of the partition wall 36. More specifically, the air supply and discharge passage 37 connects the inner space 36a with the outside of the sensor housing 22. That is, the air supply and discharge passage 37 has an air supply and discharge port 37a that penetrates the partition wall 36, and draws in air from the air supply and discharge port 37a and guides it into the inner space 36a. The air supply and discharge passage 37 is also formed by, for example, a pair of inner walls 37b erected on the top surface 34a, and extends radially inward from the air supply and discharge port 37a. The air supply and discharge passage 37 formed in this way prevents contaminants entering with the air from the air supply and discharge port 37a from being guided to the central part of the inner space 36a. The air supply and discharge passage 37 also discharges liquid in the inner space 36a to the outside of the housing 11 through the air supply and discharge port 37a.

[0025] The labyrinth 38 shown in Figure 3 connects the main body side housing chamber 31 to the outside of the sensor housing section 22. In this embodiment, the labyrinth 38 is connected to the main body side housing chamber 31 via the drainage groove 23d of the guide bush 23, which will be described in detail later, and the main body side housing chamber 31 is connected to the outside of the sensor housing section 22 via the drainage groove 23d and the labyrinth 38. More specifically, in the main body section 34, a plurality of inner walls 34d are erected on the top surface 34a in the inner space 36a, and the labyrinth 38 is formed in the inner space 36a by the inner walls 34d. The labyrinth 38 is connected to the outside of the sensor housing section 22 via the supply and discharge passage 37, and prevents contaminants contained in the air drawn in from the supply and discharge port 37a from reaching the main body side housing chamber 31 from the supply and discharge passage 37.

[0026] The storage space 39 shown in Figure 2 is the inner space of the main body portion 34, which is formed in a cylindrical shape with a top. That is, the storage space 39 has a ceiling surface 39a on one axial side and an opening 39b that opens on the other axial side. Four cylinder portions 35 protrude from the ceiling surface 39a in the other axial direction into the storage space 39, and the four cylinder portions 35 extend to the vicinity of the opening 39b.

[0027] [Guide Bush] As shown in Figure 6, the guide bush 23 is provided in the sensor-side opening 35b of the sensor-side housing chamber 35a. The guide bush 23 allows the sensor rod 45, which will be described in detail later, to slide through and fits into the sensor-side opening 35b of the sensor-side housing chamber 35a, thereby closing it. The guide bush 23 also has one end portion 23a protruding from the sensor-side opening 35b and fitting into the communication hole 32. The guide bush 23 also has a plurality of drainage grooves 23d on its outer circumferential surface, which connect the main body-side housing chamber 31 and the inner space 36a.

[0028] The bottom cover 24, which is a lid member, closes the other end of the sensor housing portion 22, that is, the opening 39b of the housing space 39. In this embodiment, the bottom cover 24 is formed in a bowl shape and is fitted into the opening on the other end of the sensor housing portion 22 by butting their openings together. In this way, the bottom cover 24 is provided in the sensor housing portion 22 so as to close the opening 39b of the housing space 39. Note that the bottom cover 24 is not necessarily limited to a bowl shape and may be plate-shaped. Also, the bottom cover 24 may be provided so as to cover the other end of the sensor housing portion 22. In this embodiment, an outlet hole 24a is formed on the side surface of the bottom cover 24.

[0029] [Operating Lever] An example of an operating device, the operating lever 12, is provided on the housing 11 as shown in Figure 1 and is configured to be tiltable with respect to the axis L1. In this embodiment, the operating lever 12 is provided on the housing 11 so as to be tiltable in all directions with respect to the axis L1 in a plan view. More specifically, the operating lever 12 is erected axially on the housing body 21. The operating lever 12 is configured to bend around a tilting center point O located on the base end side (in this embodiment, on the housing body 21 side), and can be tilted with respect to the axis L1 by bending. In this embodiment, the operating lever 12 has a joint portion 12a, a lever portion 12b, operating portions 12e and 12f, and lever wiring 12g, as shown in Figure 1.

[0030] The joint portion 12a is provided on the housing body 21 and extends along the axis L1. The joint portion 12a is, for example, a universal joint. That is, in the joint portion 12a, one yoke 12c is erected on the housing body 21 so as to be aligned with the axis L1, and the other yoke 12d is provided on the one yoke 12c so as to be tiltable in all directions. The lever portion 12b, which is an example of the operating tool body, is provided on the other yoke 12d and is configured to be graspable by the operator. Therefore, the operator can grasp the lever portion 12b and tilt the operating lever 12 in any direction relative to the axis L1.

[0031] The operating parts 12e and 12f are operated by the operator using the fingers (for example, the thumb and index finger) of the hand gripping the lever part 12b. Each of the operating parts 12e and 12f is, for example, a button switch and a slide switch, and outputs a signal when operated. Note that the operating parts 12e and 12f are not limited to switches, but can be anything that is operable, such as a touch panel. The operating parts 12e and 12f are provided on the lever part 12b. In this embodiment, the operating parts 12e and 12f are provided on the tip side (i.e., the upper side) of the lever part 12b. More specifically, the lever part 12b has two operating parts 12e (button switches) and one operating part 12f (slide switch) on the front side facing the operator, and an operating part 12f (slide switch) is provided on the back side. The lever part 12b also has, for example, an amplification circuit (not shown) inside it. The operating parts 12e and 12f are connected to an amplification circuit, and the signal is amplified by the amplification circuit.

[0032] The lever wiring 12g, which is an example of operating device wiring, is connected to the operating parts 12e and 12f and transmits signals output from the operating parts 12e and 12f. More specifically, the lever wiring 12g is connected to the operating parts 12e and 12f via an amplification circuit. The amplification circuit is located, for example, in the middle of the longitudinal direction within the lever part 12b, and the lever wiring 12g is drawn out from the lower end of the lever part 12b, for example, through the amplification circuit and within the lever part 12b. Furthermore, the lever wiring 12g is routed from the lower end outside the bellows cover 20, which will be described in detail later, and is placed into the wiring hole 26b. In addition, the lever wiring 12g extends in the other axial direction from the wiring hole 26b along the groove 25a and through the insertion groove 34c. In this way, the lever wiring 12g is routed along the housing 11, from the operating lever 12 to the other axial side of the operating device 1.

[0033] [Guide Member] As shown in Figure 5, the guide member 18 slides and guides the push rod 13, which will be described in detail later. More specifically, the guide member 18 is formed in a cylindrical shape, and the push rod 13 is slidably inserted through its inner bore. The guide member 18 is fitted into the large-diameter portion 31b of the main body side housing chamber 31 so as to close the insertion opening 31a. In addition, one end of the guide member 18 is formed to have a smaller diameter than the rest of the portion, and the one end protrudes from the insertion opening 31a.

[0034] [Retaining Plate] The retaining plate 19 holds the guide member 18 in place so that it does not come out of the main body side housing chamber 31. More specifically, the retaining plate 19 is a disc-shaped member and has a plurality of insertion holes 19a formed therein corresponding to the main body side housing chamber 31. In this embodiment, the retaining plate 19 has four insertion holes 19a, the same number as the main body side housing chamber 31. The retaining plate 19 is placed over one end face of the main body portion 25 by inserting one end portion of the guide member 18 through each insertion hole 19a. An operating lever 12 (more specifically, a joint portion 12a) is inserted through the retaining plate 19, and the retaining plate 19 is fixed to the housing body 21 by screwing the operating lever 12 into the housing 11. As a result, the retaining plate 19 is fixed to one end face of the housing body 21 and further prevents the guide member 18 from coming off the large diameter portion 31b of each main body side housing chamber 31.

[0035] [Push Rods] Multiple push rods 13 are provided in the housing 11 and each strokes according to the tilting direction of the operating lever 12. The multiple push rods 13 also stroke by an amount corresponding to the amount of tilt of the operating lever 12. In this embodiment, the operating device 1 is equipped with four push rods 13. Each push rod 13 is inserted into the main body side housing chamber 31 so as to be strokeable. That is, each of the push rods 13 is arranged in the housing body 21 at equal intervals (90 degrees in this embodiment) from each other around the axis L1. To explain in more detail, the push rods 13 are slidably inserted into the guide member 18 and inserted into the large diameter portion 31b of the main body side housing chamber 31 via the guide member 18.

[0036] [Disk] The disk 15 is provided on the operating lever 12 and strokes each of the push rods 13 according to the tilting direction of the operating lever 12. The disk 15 also strokes each push rod 13 by a stroke amount corresponding to the amount of tilting of the operating lever 12. More specifically, the disk 15 is, for example, an annular plate member with an Ω-shaped cross-section, and is mounted and fixed to the middle portion of the operating lever 12. More specifically, the disk 15 is mounted on the tip side (i.e., one side in the axial direction) of the tilting center point O of the operating lever 12 and tilts according to the tilting of the operating lever 12. In this embodiment, the disk 15 is mounted on the other yoke of the operating lever 12. The disk 15 also contacts each of the four push rods 13 and strokes at least one of the push rods 13 according to the tilting direction of the operating lever 12.

[0037] [Main body spring members] Each of the main body spring members 16 is attached to a push rod 13 and biases the corresponding push rod 13 toward the disc 15. In this embodiment, the operating device 1 is equipped with the same number of main body spring members 16 as the number of push rods 13, i.e., four. Each of the main body spring members 16 is housed in a main body housing chamber 31 and biases the push rod 13 toward the disc 15. In this embodiment, the main body spring member 16 is a compression coil spring and is housed in the small diameter portion 31d of the main body housing chamber 31 such that a portion of it protrudes into the medium diameter portion 31c. The main body spring member 16 then biases the push rod 13 in one axial direction via the main body spring seat 17, pressing the push rod 13 against the disc 15.

[0038] [Bellows Cover] The bellows cover 20 covers the push rods 13 and the disc 15. More specifically, the bellows cover 20 includes a mounting portion 20a and a cover body 20b. The mounting portion 20a is a component for attaching the cover body 20b to the housing 11 and is provided on one end face of the housing 11 via a retaining plate 19. More specifically, the mounting portion 20a is formed in a cylindrical shape and is positioned on the retaining plate 19 so as to surround the four push rods 13 from the radially outer side and fastened with bolts or the like.

[0039] The cover body 20b is a tubular member shaped like a truncated cone. The cover body 20b is provided on the housing 11, and the operating lever 12 is inserted through the inner hole of the cover body 20b. More specifically, the operating lever 12 is inserted through the cover body 20b such that the lever portion 12b protrudes from the inner hole. In this embodiment, the cover body 20b is provided on the housing 11 by fitting the inner peripheral edge of one end of the disc 15 to the outside and fitting the other end to the mounting portion 20a. As a result, the cover body 20b is placed over the joint portion 12a, and further over the push rod 13 and the disc 15. The cover body 20b is also bellows-shaped and allows the operating lever 12 to tilt by deforming.

[0040] [Sensor Mechanism] The sensor mechanism 14 is provided in the housing 11 as shown in Figure 6. More specifically, the sensor mechanism 14 is provided in the sensor housing section 22. The sensor mechanism 14 can be separated from the housing body 21 together with the sensor housing section 22. The sensor mechanism 14 also detects the movement of each of the push rods 13. More specifically, the sensor mechanism 14 detects the stroke amount of each of the push rods 13. Furthermore, the sensor mechanism 14 calculates the tilting operation of the operating lever 12 (in this embodiment, the tilting direction and tilting amount) based on the stroke amount of each push rod 13 (i.e., the detection result). The sensor mechanism 14 configured in this way includes a plurality of sensor rod assemblies 41, a plurality of sensors 42, and a substrate 43. In this embodiment, the sensor mechanism 14 includes the same number of sensor rod assemblies 41 and sensors 42 as push rods 13. Each of the sensor rod assemblies 41 and sensors 42 corresponds to each of the push rods 13.

[0041] [Sensor Rod Assembly] Each sensor rod assembly 41 is associated with each push rod 13. The sensor rod assembly 41 operates in accordance with the stroke of the corresponding push rod 13, and based on this operation, the sensor 42, which will be described in detail later, detects the stroke amount of the push rod 13. That is, the sensor rod assembly 41 works in cooperation with the sensor 42 to detect the stroke amount of the push rod 13. In this embodiment, the sensor rod assembly 41 is housed in the sensor-side housing chamber 35a. More specifically, the sensor rod assembly 41 further includes a sensor rod 45, a magnetic body 46, a sensor-side spring member 47, and a sensor-side spring seat 48.

[0042] The sensor rod 45 strokes in accordance with the stroke of the push rod 13, as will be described in detail later. The sensor rod 45 is, for example, a rod-shaped member, and one end of it is in contact with the push rod 13, and it strokes axially together with the push rod 13. The magnetic body 46 is provided on the sensor rod 45 and moves axially together with the sensor rod 45. The magnetic body 46 causes the sensor 42, which will be described in detail later, to detect the movement of the sensor rod 45. The magnetic body 46 is, for example, a ferromagnetic material, and in this embodiment, a magnet. The magnetic body 46 is, for example, cylindrical and is attached to the other end of the sensor rod 45 via a mounting member 49.

[0043] The sensor-side spring member 47 biases the sensor rod 45 toward the push rod 13, as will be described in detail later. In this embodiment, the sensor-side spring member 47 biases the sensor rod 45 via the sensor-side spring seat 48. The sensor-side spring member 47 is, for example, a compression coil spring and is located on the other axial side of the sensor-side spring seat 48.

[0044] The sensor rod assembly 41 configured as described above is provided in the sensor housing portion 22 as follows. That is, the sensor rod assembly 41 is reciprocally inserted into each cylinder portion 35. More specifically, the sensor rod assembly 41 arranges the magnetic body 46 and the sensor-side spring member 47 in the sensor-side accommodation chamber 35a, and protrudes from the top surface 34a into the housing main body 21 (more specifically, from the sensor-side accommodation chamber 35a into the main body-side accommodation chamber 31). In the present embodiment, the sensor rod assembly 41 slidably inserts the intermediate portion of the sensor rod 45 into the guide bush 23, and protrudes the one end side portion of the sensor rod 45 from the guide bush 23 into the main body-side accommodation chamber 31. And the sensor rod assembly 41 (more specifically, the sensor rod 45) abuts against the corresponding push rod 13. More specifically, the sensor rod 45 abuts against the push rod 13 via the main body-side spring seat 17, and the sensor-side spring member 47 biases the sensor rod 45 to press against the push rod 13. Thereby, the sensor rod 45 moves in the axial direction according to the stroke of the push rod 13. And the magnetic body 46 moves in the axial direction in conjunction with the sensor rod 45.

[0045] [Sensor] Each of the sensors 42 detects the operation of the sensor rod assembly 41. More specifically, the sensors 42 are provided in the sensor housing portion 22 in proximity to the magnetic bodies 46 respectively, and detect the movement of the magnetic bodies 46. In the present embodiment, the sensor mechanism 14 includes the same number of sensors 42 as the sensor rod assembly 41, that is, four sensors 42. And the sensors 42 are arranged in association with the respective magnetic bodies 46, and detect the amount of stroke of the sensor rod 45 to which the corresponding magnetic body 46 is attached by detecting the movement of the corresponding magnetic body 46. In the present embodiment, the sensor 42 is a Hall IC, and outputs a voltage (signal) corresponding to the change in the magnetic flux density around the sensor 42. That is, when the magnetic body 46 moves and the magnetic flux density around the sensor 42 changes, the sensor 42 detects the change in the magnetic flux density and detects the amount of movement of the magnetic body 46, that is, the amount of stroke of the sensor rod 45.

[0046] More specifically, the sensor 42 is provided so as to be adjacent to each sensor-side accommodation chamber 35a in order to be close to the magnetic body 46. In the present embodiment, the sensor 42 is disposed within the sensor housing portion 22, outside each cylinder portion 35, that is, in the accommodation space 39, so as to be adjacent to each cylinder portion 35. In the present embodiment, the sensor 42 is mounted on a substrate 43, which will be described in detail later, and is arranged on the substrate 43 so as to be adjacent to each cylinder portion 35.

[0047] [Substrate] The substrate 43 calculates the tilting operation (for example, tilting direction and tilting amount) of the operation lever 12 based on the detection result of the sensor 42. More specifically, the substrate 43 calculates the tilting operation of the operation lever 12 based on signals from the four sensors 42. Even more specifically, the substrate 43 calculates the stroke amount of each push rod 13. Then, the substrate 43 calculates the tilting direction and tilting amount of the operation lever 12 based on the stroke amount of each push rod 13. The substrate 43 having such a function is resin-sealed and attached to the ceiling surface 39a of the accommodation space 39 of the sensor housing portion 22. In this way, the substrate 43 is accommodated in the accommodation space 39. The substrate 43 has, for example, a substrate body 51, a substrate wiring 52, and a device-side connection terminal 53.

[0048] The substrate body 51 is a so-called circuit board and calculates the tilting operation of the operation lever 12. The substrate body 51 is formed, for example, in a disc shape. In the present embodiment, the outer shape of the substrate body 51 matches the shape of the accommodation space 39 when viewed from the bottom in a bottom view from the other side in the axial direction. Further, insertion holes 51a are respectively formed in the substrate body 51 at positions corresponding to the respective cylinder portions 35, and the substrate body 51 is accommodated in the accommodation space 39 in a state where the respective cylinder portions 35 are inserted through the insertion holes 51a. And each sensor 42 is attached to one surface 51b of the substrate body 51, and the one surface 51b is arranged facing the ceiling surface 39a. Further, the substrate body 51 is arranged with a gap between the one surface 51b and the ceiling surface 39a.

[0049] The substrate body 51, arranged in this manner, is resin-sealed and attached to the ceiling surface 39a. More specifically, as described above, the substrate body 51 is arranged with a gap between one surface 51b and the ceiling surface 39a, and sealing resin 54 is filled around the substrate body 51. In this embodiment, the sealing resin 54 fills the gap between the one surface 51b and the ceiling surface 39a, and also fills the other surface 51c of the substrate body 51. As a result, the entire substrate body 51 is covered with sealing resin 54. Furthermore, a resin layer of a predetermined thickness h is formed on the other surface 51c of the substrate body 51 by the sealing resin 54. The sealing resin 54 may be, for example, epoxy resin, silicone resin, or urethane resin.

[0050] The circuit board wiring 52 connects the circuit board body 51 to an external device, such as a controller (not shown), and transmits the calculation results calculated on the circuit board body 51 to the external device. The circuit board wiring 52 is a so-called lead wire, with one end connected to the circuit board body 51. The connection portion of the circuit board wiring 52 to the circuit board body 51 is embedded in the sealing resin 54. That is, the thickness h of the resin layer is set so that the connection portion between the circuit board wiring 52 and the circuit board body 51 is embedded. The middle portion to the base end portion of the circuit board wiring 52 is pulled out from the outlet hole 24a of the bottom cover 24 to the outside of the bottom cover 24, i.e., to the outside of the housing 11, as shown in Figure 8.

[0051] The device-side connection terminal 53 is connected to an equipment-side connection terminal (not shown) provided on an external device such as a controller. The device-side connection terminal 53 and the equipment-side connection terminal are connectors and are detachably connected to each other. The device-side connection terminal 53 is also connected to the main board 51 via the board wiring 52, and sends the calculation results transmitted from the board wiring 52 to the external device (for example, a control device for construction machinery) via the equipment-side connection terminal. More specifically, the device-side connection terminal 53 is provided at the base end of the board wiring 52 and is located outside the housing 11.

[0052] The substrate 43 configured in this way is resin-sealed in the housing space 39 as follows. That is, the sensor housing portion 22 is positioned so that the opening 39b of the housing space 39 faces upward, and in this state the substrate body 51 is housed in the housing space 39 from the opening 39b. When housed, the substrate body 51 is positioned with a gap between it and the ceiling surface 39a, as described above. After that, sealing resin 54 is filled from the opening 39b. The sealing resin 54 fills the space around the substrate body 51 without any gaps, especially between the substrate body 51 and the ceiling surface 39a, and the substrate body 51 is covered with the sealing resin 54. The sealing resin 54 that is filled in this way can be positioned with the ceiling surface 39a facing downward by positioning the opening 39b of the housing space 39 facing upward. Therefore, the sealing resin 54 can easily flow between the substrate body 51 and the ceiling surface 39a, and the occurrence of resin sealing defects can be suppressed.

[0053] [Mounting of the Operating Device] The operating device 1 is mounted on the mounting base 4 as follows. Specifically, the mounting base 4 has a mounting hole 4a as shown in Figure 2. The mounting hole 4a is formed to be larger than the outer diameter of the main body portion 25 of the housing body 21 and smaller than the outer diameter of the flange 26, and the operating device 1 is inserted through the mounting hole 4a with the portion of the housing body 21 on the axial side of the flange 26 (i.e., the main body portion 34). On the other hand, the flange 26 is placed on the mounting base 4 and is attached to the mounting base 4 by fastening with bolts or the like. In this way, the operating device 1 is attached to the mounting base 4. In addition, the lever wiring 12g in the operating device 1 is routed as follows. Specifically, the lever wiring 12g is passed through the wiring hole 26b of the flange 26 and is arranged to follow the groove 25a of the housing body 21. The wiring hole 26b is also arranged to connect to the mounting hole 4a in a plan view. Therefore, the lever wiring 12g passed through the wiring hole 26b can pass through the mounting hole 4a. Consequently, there is no need to form a different hole in the mounting base 4 for the lever wiring 12g to pass through, nor is it necessary to tie knots or perform other measures to route the wiring along the outside of the mounting base 4. Thus, the routing of the lever wiring 12g is easy, and the design flexibility of the mounting base 4 can be improved.

[0054] [Operation of the Operating Device] In the operating device 1 configured as described above, when the operating lever 12 is tilted, the disk 15 tilts according to the direction of tilt. As a result, at least one push rod 13 strokes in the other axial direction according to the direction of tilt of the operating lever 12. The push rod 13 strokes against the biasing force of the main body spring member 16 and strokes by an amount corresponding to the amount of tilt (i.e., angle) of the operating lever 12. Along with this, the sensor rod 45 moves in the other axial direction together with the magnetic body 46. This changes the magnetic flux density around the sensor 42. As a result, the amount of movement of the magnetic body 46 is detected by the sensor 42, and a signal corresponding to the amount of movement (i.e., the stroke amount of the sensor rod 45) is output. Subsequently, the circuit board 43 calculates the tilt direction and amount of tilt of the operating lever 12 based on the signals from each sensor 42. The calculation result is then output to an external device via the circuit board wiring 52 of the circuit board 43 and the device-side connection terminal 53.

[0055] Furthermore, when the tilting operation of the operating lever 12 is stopped, the operating device 1 operates as follows. Specifically, in the operating device 1, the operating lever 12 is returned to the neutral position by the main body-side spring member 16. More specifically, when the operating lever 12 tilts, the corresponding main body-side spring member 16 is compressed by the push rod 13. When the tilting operation of the operating lever 12 is stopped from this state, the main body-side spring member 16 pushes the push rod 13 to extend, causing it to stroke in one axial direction. As a result, the push rod 13 raises the operating lever 12 via the disc 15, and eventually the operating lever 12 returns to the neutral position. In this embodiment, the neutral position is the position where the operating lever 12 extends straight along the axis L1. Also, when the operating lever 12 returns to the neutral position, the sensor rod 45 is also pressed against the push rod 13 by the sensor-side spring member 47, and therefore strokes in one axial direction together with the push rod 13. Therefore, the sensor 42 can detect the stroke amount of the push rod 13 by detecting the movement of the sensor rod 45.

[0056] In the operating device 1 of this embodiment, the substrate 43 is resin-sealed and attached to the ceiling surface 39a within the housing space 39 of the sensor housing 22. Since the substrate 43 is resin-sealed, it is possible to suppress the accumulation of sand, dust, and rain on the substrate 43. This prevents the substrate 43 from being affected by sand, dust, and rain that accumulates on it. Furthermore, since the substrate 43 is resin-sealed and attached to the ceiling surface 39a, it is possible to suppress the accumulation of liquids such as rain on the sealing resin 54.

[0057] Furthermore, in the operating device 1 of this embodiment, the housing space 39 has an opening 39b that opens in the other axial direction, and the bottom cover 24 is provided on the sensor housing portion 22 so as to close the opening 39b. Therefore, when resin sealing, by arranging the sensor housing portion 22 so that the other axial direction is upward, the ceiling surface 39a is positioned downward. Since the sealing resin 54 can be injected into the ceiling surface 39a from the opening 39b above, it is easy to spread the sealing resin 54 around the substrate 43. Also, since the sealing resin 54 can be injected into the ceiling surface 39a from above, uneven distribution of the sealing resin 54 can be suppressed. Therefore, the substrate 43 can be resin sealed with an appropriate amount of sealing resin 54.

[0058] Furthermore, in the operating device 1 of this embodiment, the circuit board body 51 is covered with sealing resin 54 so that the connection portion between the circuit board body 51 and the circuit board wiring 52 is embedded. Therefore, dustproof and waterproof measures can also be taken for the connection portion.

[0059] Furthermore, in the operating device 1 of this embodiment, the bottom cover 24 has an outlet hole 24a, and the circuit board wiring 52 is pulled out of the housing 11 through the outlet hole 24a. Therefore, the formation of an outlet hole 24a in the sensor housing portion 22 in order to pull out the circuit board wiring 52 from the housing 11 is suppressed. For example, if a hole is formed in the sensor housing portion 22 in order to pull out the circuit board wiring 52 from the housing 11, it is necessary to seal the aforementioned hole in order to inject the sealing resin 54 into the housing space 39. However, by forming an outlet hole 24a in the bottom cover 24, the aforementioned sealing work can be eliminated. Therefore, the resin sealing work can be made easier.

[0060] Furthermore, in the operating device 1 of this embodiment, the sensor housing 22 is provided on the housing body 21 such that its top surface 34a faces the bottom surface of the housing body 21. The substrate 43 is placed on the ceiling surface 39a of the housing space 39 of the sensor housing 22. That is, since the substrate 43 is not placed on the top surface 34a, it is possible to form various configurations (for example, supply and discharge passages 37 and labyrinths 38) on the top surface 34a of the sensor housing 22. Therefore, the degree of design freedom regarding the top surface 34a of the sensor housing 22 can be improved.

[0061] Furthermore, in the operating device 1 of this embodiment, the main body side housing chamber 31 is connected to the outside of the sensor housing section 22 via a labyrinth 38. Therefore, each of the main body side housing chambers 31 can supply and discharge air via the labyrinth 38 when the push rod 13 moves back and forth. This prevents contaminants from being introduced into each main body side housing chamber 31 when air is taken in from outside the sensor housing section 22 to supply air, as this is suppressed by the labyrinth 38.

[0062] Furthermore, in the operating device 1 of this embodiment, the flange 26 has a wiring hole 26b formed at a position corresponding to the groove 25a, and the lever wiring 12g is passed through the wiring hole 26b and arranged along the groove 25a. Therefore, the routing of the lever wiring 12g is easy.

[0063] Furthermore, in the operating device 1 of this embodiment, the wiring hole 26b is located inside the insertion hole 19a. Therefore, it is possible to suppress the increase in size of the flange 26.

[0064] [Regarding other embodiments] In the operating device 1 of this embodiment, there are four push rods 13, but there may be two or three, or five or more. Also, the lever portion 12b is provided with operating portions 12e and 12f, but these are not necessarily required. In this embodiment, the lever wiring 12g is located outside the housing 11, but the lever wiring 12g may be brought into the sensor housing portion 22 in order to connect it to the circuit board 43. Also, the joint portion 12a of the operating lever 12 is not limited to a universal joint, and it is sufficient that at least a part of the operating lever 12 is configured to be tiltable.

[0065] Furthermore, in the operating device 1 of this embodiment, the housing 11 is not limited to being configured in the shape described above, and may be any shape that allows the substrate 43 to be attached to the ceiling surface 39a of the housing space 39 by resin sealing. Also, the housing 11 does not necessarily have to be configured to be separable into a housing body 21 and a sensor housing portion 22. In addition, although a partition wall 36 and a labyrinth 38 are formed on the top surface 34a of the sensor housing portion 22, these do not necessarily have to be formed on the top surface 34a. That is, the top surface 34a may be formed flat.

[0066] Furthermore, in the operating device 1 of this embodiment, the device-side connection terminal 53 is located away from the housing 11 (more specifically, the bottom cover 24), but it is not necessarily required to be configured in this way. For example, as in the operating device 1A of another embodiment shown in Figure 9, the device-side connection terminal 53A may be provided on the bottom cover 24A. In this case, the circuit board wiring 52 is routed in the housing space 39. Thus, in the operating device 1A, the device-side connection terminal 53A is provided on the bottom cover 24A. Therefore, it is simpler than configuring the device-side connection terminal 53A in the sensor housing portion 22, and the degree of design freedom can be improved.

[0067] Furthermore, in the operating device 1 of this embodiment, the removal hole 24a is formed on the side surface of the bottom cover 24, but it may also be formed on the bottom surface of the bottom cover 24. Alternatively, the removal hole 24a may be formed on the side surface or top surface of the sensor housing portion 22 other than the bottom cover 24. Also, an opening 39b may be formed in a portion of the bottom surface of the sensor housing portion 22, with the removal hole 24a formed in the remaining portion.

[0068] Furthermore, in the operating device 1 of this embodiment, the sensor 42 is not limited to a Hall IC, but may also be a Hall element that detects the movement of the push rod 13. More specifically, the Hall element detects the presence or absence of movement of the sensor rod 45 based on the magnetic flux density around the Hall element, which changes as a magnetic material 46 moves, for example. In addition, the sensor 42 is not limited to a magnetic sensor, but may also be other non-contact sensors such as a capacitive sensor, or a contact-type sensor. Also, although each of the spring members 16 and 47 is a compression coil spring, they may also be other springs such as disc springs.

[0069] <Exemplary Embodiment> The operating device in the first phase comprises a housing including a housing body and a sensor housing portion, an operating tool tiltably mounted on the housing body, a plurality of push rods mounted on the housing body so as to stroke in accordance with the tilting direction of the operating tool, and a sensor mechanism provided in the sensor housing portion that detects the movement of each of the push rods and calculates the tilting operation of the operating tool based on the detection result, wherein the sensor mechanism further includes a circuit board that calculates the tilting operation of the operating tool, the housing body is arranged on one side in the first direction of the sensor housing portion, the sensor housing portion has a housing space for housing the circuit board, the housing space has a ceiling surface on one side in the first direction, and the circuit board is resin-sealed and attached to the ceiling surface in the housing space of the sensor housing portion.

[0070] In the above scenario, the substrate is resin-sealed and mounted on the ceiling surface within the sensor housing's containment space. Because the substrate is resin-sealed, it is possible to prevent sand, dust, and rain from accumulating on it. This prevents the substrate from being affected by sand, dust, and rain that accumulate on it. Furthermore, because the substrate is resin-sealed and mounted on the ceiling surface, it is possible to prevent liquids such as rain from remaining on the sealing resin.

[0071] The operating device in the second phase is the operating device in the first phase, wherein the housing further includes a lid member, the housing space has an opening that opens in the other direction in the first direction, and the lid member is provided on the sensor housing portion so as to close the opening.

[0072] According to the above description, the housing space has an opening that opens in the other direction of the first direction, and the lid member is provided on the sensor housing so as to close the opening. Therefore, when resin sealing, by positioning the sensor housing so that one of the first directions is downward, the ceiling surface is positioned downwards. Since the sealing resin can be injected from the opening above the ceiling surface that is positioned in this way, it is easy to distribute the sealing resin around the substrate. Also, since the sealing resin can be injected from above the ceiling surface, uneven distribution of the sealing resin can be suppressed. Therefore, the substrate can be resin sealed with an appropriate amount of sealing resin.

[0073] The operating device in the third phase is the same as the operating device in the second phase, wherein the circuit board has a circuit board body that calculates the tilting motion of the operating tool, circuit board wiring that transmits the calculation results, and a device-side connection terminal that is connected to the circuit board body via the circuit board wiring and is connected to the device-side connection terminal of an external device, and the circuit board body is covered with a sealing resin such that the connection portion between the circuit board body and the circuit board wiring is embedded.

[0074] In accordance with the above, the substrate body is covered with a sealing resin so that the connection portion between the substrate body and the substrate wiring is embedded. Therefore, dustproof and waterproof measures can also be taken for the connection portion.

[0075] In the fourth phase, the operating device is such that, in the operating device of the third phase, the device-side connection terminal is located outside the housing, the lid member has an outlet hole, and the circuit board wiring is routed outside the housing through the outlet hole.

[0076] In the above scenario, the lid member has an extraction hole, and the circuit board wiring is pulled out of the housing through the extraction hole. Therefore, forming an extraction hole in the sensor housing to pull the circuit board wiring out of the housing is discouraged. For example, if a hole is formed in the sensor housing to pull the circuit board wiring out of the housing, it is necessary to seal the hole in order to inject sealing resin into the housing space. However, by forming an extraction hole in the lid member, the aforementioned sealing work can be eliminated. Therefore, the resin sealing work can be made easier.

[0077] In the fifth phase, the operating device is the same as the operating device in the third phase, and the device-side connection terminal is provided on the cover member.

[0078] In accordance with the above, the device-side connection terminals are provided on the cover member. Therefore, this is simpler than configuring the device-side connection terminals on the sensor housing, and it allows for greater design flexibility.

[0079] In the sixth phase, the operating device is provided in the operating device of any of the first to fifth phases, wherein the sensor housing portion is provided on the housing body such that the top surface on one side in the first direction faces the bottom surface of the housing body.

[0080] In accordance with the above, the sensor housing is provided on the housing body with its top surface facing the bottom surface of the housing body. The circuit board is placed on the ceiling surface of the housing space of the sensor housing. That is, since the circuit board is not placed on the top surface, it is possible to form various configurations on the top surface of the sensor housing. Therefore, it becomes possible to form various configurations on the top surface of the sensor housing, which improves the design freedom regarding the top surface of the sensor housing.

[0081] The operating device in the seventh phase is the same as the operating device in the sixth phase, wherein the housing body includes a plurality of body-side housing chambers through which each of the push rods is slidably inserted, the sensor housing portion has a labyrinth formed on the top surface, and the body-side housing chambers are connected to the outside of the sensor housing portion via the labyrinth.

[0082] In the above scenario, each of the main body's housing chambers is connected to the outside of the sensor housing via a labyrinth. Therefore, each of the main body's housing chambers can supply and discharge air via the labyrinth when the push rod reciprocates. This helps to prevent contaminants from being introduced into each cylinder.

[0083] The operating device in the eighth phase is an operating device in any of the first to seventh phases, wherein the operating tool includes an operating tool body tiltably mounted on the housing body, an operating portion that is operable and mounted on the operating tool body, and operating tool wiring connected to the operating portion, the housing body having a body portion extending in a first direction and on which the plurality of push rods are strobeable, and a flange formed on the outer surface of the body portion so as to protrude outward, the body portion having a wiring groove recessed radially inward on its outer circumferential surface, the flange having a wiring hole formed at a position corresponding to the wiring groove, and the operating tool wiring passing through the wiring hole and arranged along the wiring groove.

[0084] According to the above description, the flange has wiring holes formed at positions corresponding to the wiring grooves, and the operating device wiring is routed through the wiring holes and along the wiring grooves. Therefore, the routing of the operating device wiring is easy.

[0085] In the ninth phase, the operating device is the same as the operating device in the eighth phase, wherein the flange has fastening holes through which fastening members are inserted for fastening to a mounting base, and the wiring holes are located inside the fastening holes.

[0086] According to the above considerations, the through-hole is positioned inside the insertion hole. Therefore, it is possible to suppress the increase in flange size.

[0087] From the above description, many improvements and other embodiments of the disclosure will be apparent to those skilled in the art. Therefore, the above description should be interpreted as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the disclosure. The details of its structure and / or function can be substantially modified without departing from the spirit of the disclosure.

Claims

1. An operating device comprising: a housing including a housing body and a sensor housing portion; an operating tool tiltably mounted on the housing body; a plurality of push rods mounted on the housing body so as to stroke in accordance with the tilting direction of the operating tool; a sensor mechanism provided on the sensor housing portion for detecting the movement of each of the push rods and calculating the tilting operation of the operating tool based on the detection result, wherein the sensor mechanism further includes a circuit board for calculating the tilting operation of the operating tool; the housing body is arranged on one side in the first direction of the sensor housing portion; the sensor housing portion has a housing space for housing the circuit board; the housing space has a ceiling surface on one side in the first direction, and the circuit board is resin-sealed and mounted on the ceiling surface in the housing space of the sensor housing portion.

2. The operating device according to claim 1, wherein the housing further includes a lid member, the housing space has an opening that opens to the other in the first direction, and the lid member is provided on the sensor housing portion so as to close the opening.

3. The operating device according to claim 2, wherein the substrate comprises a substrate body for calculating the tilting motion of the operating device, substrate wiring for transmitting the calculation results, and a device-side connection terminal connected to the substrate body via the substrate wiring and connected to the device-side connection terminal of an external device, and the substrate body is covered with a sealing resin such that the connection portion between the substrate body and the substrate wiring is embedded.

4. The operating device according to claim 3, wherein the device-side connection terminal is located outside the housing, the lid member has an outlet hole, and the circuit board wiring is routed outside the housing through the outlet hole.

5. The operating device according to claim 3, wherein the device-side connection terminal is provided on the cover member.

6. The operating device according to claim 1, wherein the sensor housing portion is provided on the housing body such that the top surface on one side in the first direction faces the bottom surface of the housing body.

7. The operating device according to claim 6, wherein the housing body includes a plurality of body-side housing chambers through which each of the push rods is slidably inserted, the sensor housing portion has a labyrinth formed on its top surface, and the body-side housing chambers are connected to the outside of the sensor housing portion via the labyrinth.

8. The operating device according to claim 1, wherein the operating device includes an operating device body tiltably mounted on the housing body, an operating portion that is operable and mounted on the operating device body, and operating device wiring connected to the operating portion, the housing body having a body portion extending in a first direction and on which the plurality of push rods are strobeable, and a flange formed on the outer surface of the body portion so as to protrude outward, the body portion having a wiring groove recessed radially inward on its outer circumferential surface, the flange having a wiring hole formed at a position corresponding to the wiring groove, and the operating device wiring passing through the wiring hole and arranged along the wiring groove.

9. The operating device according to claim 8, wherein the flange has fastening holes through which fastening members are inserted for fastening to a mounting base, and the wiring holes are located inward from the fastening holes.

Citation Information

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