JP2014198548A - Stern drive device for marine craft and assembling method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stern drive device for a marine craft, which can prevent occurence of partial contact in fitting an opening portion of a steering lever to fitted portions of left and right rotation shafts and an assembling method for the same.SOLUTION: An opening portion 66 of a steering lever 65 is formed smaller than the outer periphery of fitted portions 26 of left and right rotation shafts 21. In the steering lever 65 is formed a long hole 67 in the longitudinal direction, whose one side is communicated with the opening portion 66, is formed a screw hole 68 parallel in a short direction from a lateral surface to the long hole 67 and is formed a penetration hole 69 opposing to the screw hole 68. A bolt B to be screwed from the screw hole 68 is contacted with a jig K inserted into the long hole 67 so as to enlarge the opening portion 66 of the steering lever 65.

Description

  The present invention relates to a technology for a ship stun drive device and a method for assembling a ship stun drive device.

  Among ships, small ships are used as pleasure boats and fishing boats. One installation method of a propulsion engine in a small ship is an “inboard / outboard motor” installation method. An inboard / outboard motor is an installation type in which power is transmitted from an engine arranged inside a hull to a stun drive device arranged outside the hull (for example, Patent Document 1).

  In the stun drive device, the gimbal ring connected to the propulsion device is supported with respect to the gimbal housing around the left and right rotation shaft, and the fitting portion on the upper end side of the left and right rotation shaft is fitted to the opening of the steering lever. By turning the steering lever in the left-right direction, the propulsion device is turned in the left-right direction to turn the hull.

The configuration of the conventional left / right pivot shaft 521 and steering lever 565 will be described with reference to FIG.
In FIG. 7A, the conventional left and right pivot shaft 521 and steering lever 565 are schematically shown in plan view. FIG. 7B schematically shows a conventional left and right pivot shaft 521 and steering lever 565 in a side view.

  In the conventional stun drive device, the opening portion 566 of the steering lever 565 is formed larger than the outer periphery of the fitting portion 526 of the left and right rotation shaft 521. Further, the steering lever 565 is formed with a long hole 567 that communicates with the opening 566 on one side and is parallel to the longitudinal direction of the steering lever 565, from one side of the steering lever 565 to the other side through the long hole 567. A hole 568 parallel to the short direction of the steering lever 565 is formed.

A conventional assembling method S500 of the left and right pivot shaft 521 and the steering lever 565 will be described with reference to FIG.
In FIG. 8, the assembling method S500 is schematically shown in the assembling order.

  In step S <b> 510, the operator fits the fitting portion 526 of the left / right rotation shaft 521 into the opening 566 of the steering lever 565. At this time, since the opening 566 of the steering lever 565 is formed larger than the outer periphery of the fitting portion 526 of the left and right rotation shaft 521, the operator can easily turn the steering lever 565 left and right with respect to the opening 566. The fitting portion 526 of the moving shaft 521 can be fitted.

  In step S 520, the hole 568 is tightened with the bolt B and the nut N in a state where the fitting portion 526 of the left and right pivot shaft 521 is fitted to the opening 566 of the steering lever 565. That is, by reducing the opening 566 of the steering lever 565 by the fastening force between the bolt B and the nut N, the fitting part 526 of the left and right pivot shaft 521 is fitted to the opening 566 of the steering lever 565.

  However, in the conventional assembling method S500, the opening 566 of the steering lever 565 is deformed and the fitting portion 526 of the left and right rotation shaft 521 is fitted. Therefore, depending on the deformation of the opening 566 of the steering lever 565, the fitting portion 526 of the left and right pivot shaft 521 may be fitted to the opening 566 of the steering lever 565 in an extremely one-sided state. there were. When the fitting portion 526 of the left and right rotation shaft 521 is fitted in an extreme one-sided state, abnormal wear occurs on the opening portion 566 of the steering lever 565 or the fitting portion 526 of the left and right rotation shaft 521. There was a risk of generating.

JP 2013-14174 A

  SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a marine stun drive device and a marine stun drive device assembling method that can prevent the occurrence of one-side contact in the fitting between the opening of the steering lever and the fitting portion of the left and right pivot shaft Is to provide.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in claim 1, the gimbal ring connected to the propulsion device is supported by the gimbal housing around the left and right rotation shaft, and the fitting portion on the upper end side of the left and right rotation shaft is fitted to the opening of the steering lever. A steering drive device for a ship that rotates the propulsion device in the left-right direction by rotating the steering lever in the left-right direction, wherein the opening of the steering lever is a fitting portion of the left-right rotation shaft The steering lever has one side communicating with the opening, and a long hole formed in the longitudinal direction of the steering lever, from the side surface of the steering lever to the long hole. A screw hole is formed in the short direction of the steering lever, and a through hole is formed to face the screw hole, and a metal piece inserted into the long hole of the steering lever is formed. Enlarging the opening of the steering lever is brought into contact with a bolt screwed from the screw hole side.

In claim 2, the gimbal ring connected to the propulsion device is supported on the gimbal housing around the left and right rotation shaft, and the fitting portion on the upper end side of the left and right rotation shaft is fitted to the opening of the steering lever. A method for assembling a stun drive device for a ship that rotates the propulsion device in the left-right direction by rotating the steering lever in the left-right direction,
The opening portion of the steering lever is formed smaller than the outer periphery of the fitting portion of the left and right pivot shaft, and one side of the steering lever communicates with the opening portion, and a long hole extends in the longitudinal direction of the steering lever. A screw hole is formed in the short direction of the steering lever from the side surface of the steering lever to the long hole, and a through hole is formed to face the screw hole, and is inserted into the long hole of the steering lever. A bolt to be screwed in from the screw hole side is brought into contact with the formed jig to enlarge the opening portion of the steering lever, and the fitting portion of the left and right pivot shaft is inserted into the opening portion of the steering lever, and the elongated hole is inserted into the elongated hole. By removing the inserted jig, the opening portion of the steering lever is fitted to the fitting portion of the left and right pivot shaft.

  According to the marine stun drive device and the marine stun drive device assembly method of the present invention, it is possible to prevent occurrence of one-side contact in the fitting between the opening portion of the steering lever and the fitting portion on the upper end side of the left and right rotation shaft. .

The schematic diagram which shows the stern of a pleasure boat. The schematic diagram which similarly shows the structure of a stun drive device. The schematic diagram which similarly shows the surrounding structure of a steering lever. The schematic diagram which similarly shows the structure of a steering lever and a left-right rotation shaft. The schematic diagram which shows the flow of the assembly method of a steering lever and a left-right rotation axis | shaft. The schematic diagram which shows the flow in another embodiment of the assembly method of a steering lever and a left-right rotation axis | shaft. The schematic diagram which shows the conventional steering lever and the left-right rotation axis | shaft. The schematic diagram which shows the flow of the assembly | attaching method of the conventional steering lever and the left-right rotation axis | shaft.

The pleasure boat 100 will be described with reference to FIG.
In FIG. 1, the pleasure boat 100 is schematically shown in perspective. In FIG. 1, the hull 110 and the cabin 120 are indicated by a two-dot chain line for easy understanding.

  The pleasure boat 100 is an embodiment of a ship according to the present invention. The pleasure boat 100 is a small vessel used for sports fishing, cruising, marine sports or speed racing. The pleasure boat 100 includes stun drive devices 10A and 10B, engines 80A and 80B, a hull 110, and a cabin 120. A cabin 120 is disposed at the center of the hull 110.

  The pleasure boat 100 has a “two-chamber” configuration. “Two units” is a configuration in which the stun drive devices 10A and 10B are connected to the two engines 80A and 80B, respectively. In the pleasure boat 100 of the present embodiment, the stan drive device 10A and the engine 80A are disposed on the left side in the traveling direction at the rear of the hull 110, and the stan drive device 10B and the engine 80B are disposed on the right side in the traveling direction. ing.

  The pleasure boat 100 is configured as an “inboard / outboard motor”. The “inboard / outboard motor” is a configuration in which power is transmitted from the engines 80A and 80B arranged inside the hull 110 to the stun drive devices 10A and 10B arranged outside the hull 110. The pleasure boat 100 has an “out-drive” configuration. The “outdrive” is a configuration in which the engines 80A and 80B are disposed in the rear of the ship and the stern drive devices 10A and 10B are provided at the stern (transam board 130).

  In the following description, the stun drive devices 10A and 10B and the engines 80A and 80B have the same configuration.

The configuration of the stun drive device 10 will be described with reference to FIGS.
In FIG. 2, the configuration of the stun drive device 10 is schematically shown in a side view. Further, in FIG. 3, the configuration around the steering lever 65 is schematically shown in a side view.

  The stun drive device 10 is a device that propels the hull 110 by rotating a screw propeller described later. The stun drive device 10 is a device for turning the hull 110 by turning a propulsion device 50 described later in the left-right direction with respect to the traveling direction of the hull 110.

  The stun drive device 10 includes a gimbal housing 20, a gimbal ring 30, a bell housing 40, and a propulsion device 50. In the stun drive device 10, the gimbal housing 20, the gimbal ring 30, the bell housing 40, and the propulsion device 50 are arranged in this order from the rear of the hull 110.

  The gimbal housing 20 is fixed to the transom board 130 of the hull 110. A gimbal ring 30 is supported on the gimbal housing 20 via a left / right rotation shaft 21 so as to be rotatable in the left / right direction. The upper end side of the left and right rotation shaft 21 is pivotally supported on one end side of the steering lever 65. The other end side of the steering lever 65 is pivotally supported on the rod side of the left / right rotating hydraulic cylinder 60 (see FIG. 3).

  As described above, the gimbal ring 30 is pivotally supported by the gimbal housing 20 via the left / right pivot shaft 21. A bell housing 40 is supported on the gimbal ring 30 via a vertical rotation shaft 31 so as to be rotatable in the vertical direction. In addition, on the left and right sides of the gimbal ring 30, the cylinder sides of the lifting hydraulic cylinders 70 and 70 are pivotally supported.

  As described above, the bell housing 40 is pivotally supported on the gimbal ring 30 via the vertical rotation shaft 31. The bell housing 40 is connected to an upper housing 50U of the propulsion device 50 described later.

  The propulsion device 50 includes an upper housing 50U and a lower housing 50R. The upper housing 50U is positioned above the draft W during navigation, and stores a switching clutch and the like. Further, the rod side of the elevating hydraulic cylinders 70 and 70 is pivotally supported on the left and right sides of the upper housing 50U. The lower housing 50R is positioned below the draft W during navigation, and stores an output shaft and the like.

  By setting it as such a structure, the left-right rotation hydraulic cylinder 60 is expanded-contracted with a steering apparatus (not shown). The steering lever 65 is rotated by expanding and contracting the left / right rotating hydraulic cylinder 60. When the steering lever 65 is rotated, the left / right rotation shaft 21 is rotated. By rotating the left / right rotation shaft 21, the gimbal ring 30, the bell housing 40 and the propulsion device 50 rotate in the left / right direction with respect to the hull 110 about the left / right rotation shaft 21.

  Further, when the elevating hydraulic cylinder 70 is expanded and contracted, the bell housing 40 and the propulsion device 50 are rotated in the vertical direction about the vertical rotation shaft 31 with respect to the hull 110.

The configuration of the left and right pivot shaft 21 and the steering lever 65 will be described with reference to FIG.
In FIG. 4A, the left / right rotation shaft 21 and the steering lever 65 are schematically shown in plan view. In FIG. 4B, the conventional left and right pivot shaft 21 and steering lever 65 are schematically shown in a side view.

  As described above, the steering lever 65 is a lever that rotates the left-right rotation shaft 21. The steering lever 65 has an opening 66, a long hole 67, a screw hole 68, a hole 69, and a bolt hole 64. The opening 66 is formed on the outer side of the steering lever 65. The opening 66 is formed in a substantially rectangular shape in plan view.

  The long hole 67 is formed so that one side communicates with the opening 66 and is parallel to the longitudinal direction of the steering lever 65. The screw hole 68 is formed so as to be parallel to the short direction of the steering lever 65 from one side surface of the steering lever 65 to the long hole 67. It is assumed that the screw hole 68 is threaded.

  The hole 69 is formed to be parallel to the short side direction of the steering lever 65 from the other side surface of the steering lever 65 to the long hole 67. It is assumed that the hole 69 is not threaded.

  As described above, the left-right rotation shaft 21 supports the gimbal ring 30 so as to be rotatable in the left-right direction with respect to the gimbal housing 20. A fitting portion 26 that fits with the opening 66 of the steering lever 65 is formed on the upper end side of the left-right rotation shaft 21.

  Here, as a matter to be noted, the opening 66 of the steering lever 65 is formed to be smaller than the outer periphery of the fitting portion 26 of the left and right rotation shaft 21. In other words, the opening area of the opening 66 of the steering lever 65 is smaller than the cross-sectional area of the fitting portion 26 of the left and right rotation shaft 21.

  The bolt hole 64 is for connecting a ground (not shown) for anticorrosion with a bolt. The ground electrically connects the transom board 130 and the steering lever 65.

With reference to FIG. 5, an assembly method S <b> 100 of the left / right rotation shaft 21 and the steering lever 65 will be described.
In FIG. 5, the assembling method S100 is schematically shown in the assembling order.

  The assembling method S100 of the left and right pivot shaft 21 and the steering lever 65 relates to the assembling method of the marine stun drive device of the present invention. More specifically, in the assembling method S100 of the left / right rotation shaft 21 and the steering lever 65, the fitting portion 26 of the left / right rotation shaft 21 is fitted into the opening 66 of the steering lever 65, thereby steering. In this method, the lever 65 is fixed to the left / right rotation shaft 21.

  In step S <b> 110, the operator inserts the jig K into the long hole 67 of the steering lever 65 and simultaneously screwes the bolt B into the screw hole 68 of the steering lever 65. The jig K is a flat plate having a thickness equivalent to the width of the long hole 67.

  At this time, the (screw portion) tip of the bolt B screwed into the screw hole 68 comes into contact with the jig K. After the tip of the bolt B comes into contact with the jig K, the bolt B is further screwed into the screw hole 68. That is, the bolt B is further screwed toward the jig K in a state where the tip is in contact with the jig K. Thereby, the steering lever 65 is elastically deformed so that the width of the long hole 67 is enlarged in plan view by the axial force of the bolt B and the jig K and the screw hole 68 are separated from each other. As a result, the opening 66 of the steering lever 65 is enlarged in opening area and becomes larger than the cross-sectional area of the fitting portion 26 of the left and right rotation shaft 21.

  In step S <b> 120, the operator inserts the fitting portion 26 into the opening 66 of the steering lever 65. At this time, since the opening area of the opening 66 is larger than the cross-sectional area of the fitting portion 26 due to the axial force of the bolt B, the operator can turn the opening 66 of the steering lever 65 left and right. The fitting portion 26 of the moving shaft 21 can be easily assembled.

  In step S <b> 130, the operator removes the bolt B that has been screwed into the screw hole 68 of the steering lever 65, and removes the jig K that has been inserted into the long hole 67 of the steering lever 65. At this time, the steering lever 65 is reduced in size so that the opening area of the opening 66 that is larger than the cross-sectional area of the fitting portion 26 by the axial force of the bolt B is substantially the same as the cross-sectional area of the fitting portion 26. To do. That is, the steering lever 65 is fitted to the fitting portion 26 of the left and right rotation shaft 21 in a state where the opening area of the opening 66 is elastically deformed to have the same size as the cross-sectional area of the fitting portion 26. Thereby, the steering lever 65 is firmly fixed to the left and right rotation shaft 21 by fastening the fitting portion 26 with a force generated by elastic deformation of the opening 66.

  In step S <b> 140, the operator inserts the removed bolt B into the hole 69 of the steering lever 65, passes through the hole 69 and the long hole 67, and screws into the screw hole 68. That is, in the steering lever 65, the width of the long hole 67 is reduced in plan view by the axial force (tightening force) of the bolt B. Thereby, a force for reducing the opening area is applied to the opening 66 of the steering lever 65, and the force for fastening the fitting portion 26 is increased. As a result, the steering lever 65 is more firmly fixed to the left and right rotation shaft 21 by fastening the fitting portion 26 by the axial force of the bolt B in addition to the force generated by the elastic deformation of the opening 66.

  7, in step S131 and step S141, a bolt C having a screw diameter smaller than that of the screw hole 68 is inserted into the hole 69 of the steering lever 65, and the hole 69, the long hole 67, and the screw hole 68 are passed through. Thus, it may be configured to be screwed into the nut D. In this case, the screw hole 68 may be formed on the opposite side.

  In step S132 and step S142, the bolt C may be screwed into the jig L having a screw hole instead of the nut D. By doing so, the jig L is fixed to the steering lever, so there is no need to store it separately. In this case, the screw hole 68 may be formed on the opposite side.

The effect of the assembling method S100 between the left and right pivot shaft 21 and the steering lever 65 will be described.
According to the assembling method S <b> 100, it is possible to prevent the extreme contact between the opening 66 of the steering lever 65 and the fitting portion 26 of the left and right rotating shaft 21.

  That is, according to the assembling method S100, as compared with the above-described conventional assembling method S500, the variation in work accuracy can be reduced. It is possible to prevent the occurrence of extreme contact with each other in the fitting.

  Further, according to the assembling method S100, the opening 66 of the steering lever 65 and the fitting portion 26 of the left and right rotating shaft 21 can be fitted with the same number of work steps as compared with the conventional assembling method S500. It is possible to prevent the occurrence of extreme hitting.

DESCRIPTION OF SYMBOLS 10 Stan drive device 20 Gimbal housing 21 Left-right rotation shaft 26 Fitting part 30 Gimbal ring 40 Bell housing 50 Propulsion device 65 Steering lever 66 Opening part 67 Long hole 68 Screw hole 70 Jig 100 Pleasure boat S100 Assembling method

Claims (2)

The gimbal ring connected to the propulsion device is supported on the gimbal housing around the left / right rotation shaft, the fitting portion on the upper end side of the left / right rotation shaft is fitted into the opening of the steering lever, and the steering lever is moved in the left / right direction. A ship stun drive device for rotating the propulsion device in the left-right direction by rotating to
The opening part of the steering lever is formed smaller than the outer periphery of the fitting part of the left and right pivot shaft,
One side of the steering lever communicates with the opening, and a long hole is formed in the longitudinal direction of the steering lever. A screw hole extends in a short direction of the steering lever from a side surface of the steering lever to the long hole. Is formed, and a through hole facing the screw hole is formed,
A bolt inserted into the jig hole inserted into the long hole of the steering lever is brought into contact with the jig to enlarge the opening of the steering lever;
Ship stun drive device. The gimbal ring connected to the propulsion device is supported on the gimbal housing around the left / right rotation shaft, the fitting portion on the upper end side of the left / right rotation shaft is fitted into the opening of the steering lever, and the steering lever is moved in the left / right direction. An assembly method of a marine stun drive device for rotating the propulsion device in the left-right direction by rotating to
The opening of the steering lever is formed smaller than the outer periphery of the fitting portion of the left and right pivot shaft,
One side of the steering lever communicates with the opening, and a long hole is formed in the longitudinal direction of the steering lever. A screw hole extends in a short direction of the steering lever from a side surface of the steering lever to the long hole. And a through hole is formed to face the screw hole,
Enlarge the opening of the steering lever by bringing a bolt inserted from the screw hole side into a jig inserted into the elongated hole of the steering lever,
The fitting portion of the left and right rotation shaft is inserted into the opening portion of the steering lever, and the jig inserted into the elongated hole is removed, so that the opening portion of the steering lever becomes the fitting portion of the left and right rotation shaft. Fitted into the
A method for assembling a marine stun drive device.

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