JP7347191B2 - Rigging tube connection structure - Google Patents

Description

The present invention relates to a rigging tube connection structure for connecting a rigging tube to an outboard motor.

A rubber grommet is provided in the upper front part of the outboard motor. The grommet supports wiring such as the throttle cable and fuel hose that connect the outboard motor and the hull, and also prevents seawater from entering the outboard motor through the hole for pulling out the wiring from the inside of the outboard motor to the outside. etc. (see Patent Document 1 below). Furthermore, in order to ensure safety and improve the appearance, it is common to cover the wiring extending from the outboard motor to the hull with a rigging tube. A rigging tube is a tube having a bellows structure, and is also called a rigging hose. Furthermore, an outboard motor generally includes a rigging tube connection structure that connects the rigging tube to the grommet by attaching an adapter to one end of the rigging tube and fitting the adapter to the grommet.

In the conventional rigging tube connection structure, the method of fixing the grommet and the adapter fitted to the grommet is by using bolts, fixing pins, and metal fixings such as C-rings and E-rings. A method of fixing using a ring is adopted.

A conventional rigging tube connection structure employing a method of fixing a grommet and an adapter using a retaining pin and a retaining ring specifically has the following configuration. That is, each of the grommet and the adapter is provided with a pin insertion hole through which a locking pin is inserted. The positions of these pin insertion holes are set so as to correspond to each other when the adapter is fitted into the grommet. On the other hand, the retaining pin has a rod-shaped body and a head provided on the base end side of the body, and a groove for attaching a retaining ring is formed at the tip of the body. When fixing the grommet and adapter after fitting the adapter to the grommet, pass the tip of the body of the retaining pin through the pin insertion hole provided in the adapter and the pin insertion hole provided in the grommet in order. , Attach a retaining ring to the tip of the body of the retaining pin that has passed through these pin insertion holes. As a result, the grommet and the adapter are fixed to each other by the retaining pin, and the retaining ring prevents the retaining pin from falling out from the two pin insertion holes.

Japanese Patent Application Publication No. 2007-296999

However, in the conventional rigging tube connection structure that uses bolts to fix the grommet and adapter, tools such as a wrench are required to tighten the bolts, so it is difficult to fix the grommet and adapter. It is time consuming and has poor workability.

In addition, in the conventional rigging tube connection structure that uses a method of fixing a grommet and an adapter using a retaining pin and a retaining ring, the process of inserting a retaining pin into each pin insertion hole is the process of securing the grommet and adapter. Since two steps are required: and the step of attaching the retaining ring to the retaining pin, the work is complicated and the workability is poor.

Further, in this conventional rigging tube connection structure, there are two parts used to fix the grommet and the adapter: a retaining pin and a retaining ring. When the number of parts is large, it is difficult to manage the parts. Specifically, the retaining pin or retaining ring is likely to be lost. Furthermore, since attaching a retaining ring to a retaining pin is a delicate task, while this work is being done on the ship's hull, waves and wind may cause the hull to shake and the work may not go well. For example, a retaining ring may fail to attach to a retaining pin, causing the retaining ring to fall into water and be lost. If the retaining pin or retaining ring is lost in this way, the retaining pin or retaining ring must be purchased again, making maintenance complicated and increasing maintenance costs. Additionally, the metal retaining ring may rust, which may increase the frequency of replacement of the retaining ring.

The present invention has been made, for example, in view of the above-mentioned problems, and an object of the present invention is to provide a component that can improve the workability of fixing a grommet and an adapter, and that also provides a component for fixing a grommet and an adapter. An object of the present invention is to provide a rigging tube connection structure that can facilitate maintenance and reduce maintenance costs by suppressing loss of the rigging tube.

In order to solve the above problems, the present invention includes a grommet that is fixed to an outboard motor and through which wiring is inserted, an adapter that is attached to a rigging tube, and a stop pin, and that connects the grommet and the adapter. The rigging tube connection structure connects the rigging tube to the grommet by fixing the rigging tube with the stop pin, the grommet being formed in a columnar shape and extending in the axial direction for passing the wiring. The grommet has an insertion hole, a fitting portion is formed at one end in the axial direction, a first connecting portion is formed of an elastic material at the outer peripheral side of the grommet, and the first connecting portion is formed with a fitting portion. is formed with a first pin insertion hole through which the stop pin is inserted; a convex portion that projects inward in the radial direction of the first pin insertion hole is formed in the first pin insertion hole; The adapter is formed in a cylindrical shape, and a mounting portion for attaching the rigging tube is formed at one axial end of the adapter, and a mounting portion for fitting the rigging tube is formed at the other axial end of the adapter. A fitting hole is formed, and a second connecting part is formed in the outer peripheral side portion of the adapter, and the second connecting part is connected to the second connecting part in a state where the fitting part and the fitting hole are fitted. A second pin insertion hole is formed in the second connection part to face the first connection part, and the second pin insertion hole is arranged to face the first connection part. The retaining pin is disposed so as to correspond to the first pin insertion hole in a state where the part and the fitting hole are fitted together, and the stop pin is provided on a rod-shaped body part and one end side of the body part; The body includes a head having a diameter larger than that of the body, and a recess formed on the outer circumferential surface of the body into which the convex part is inserted, and the body has a shape in which the fitting part and the fitting hole are fitted. state, the second pin insertion hole is inserted into the second pin insertion hole, and then the first pin insertion hole is inserted, and when the body is inserted into the first pin insertion hole, the inside of the first pin insertion hole is inserted. The above-mentioned convex part is characterized in that it enters into the above-mentioned concave part.

According to the present invention, it is possible to improve the workability of fixing a grommet and an adapter, and to suppress the loss of parts for fixing a grommet and an adapter, thereby facilitating maintenance and reducing maintenance costs. can be achieved.

FIG. 1 is an explanatory diagram showing an outboard motor to which a rigging tube connection structure according to an embodiment of the present invention is applied. FIG. 2 is an explanatory diagram showing a state in which the outboard motor in FIG. 1 is viewed from the front. It is a perspective view which shows the rigging tube connection structure and rigging tube of the Example of this invention of the disassembled state. FIG. 3 is an explanatory diagram showing a state in which an adapter and a grommet attached to a rigging tube are fitted into each other and fixed by a stop pin in the rigging tube connection structure according to the embodiment of the present invention. 5 is an explanatory diagram showing the adapter seen from the direction of arrow VV in FIG. 4. FIG. 5 is a cross-sectional view showing the rigging tube connection structure as seen from the direction of arrow VI-VI in FIG. 4. FIG. In the rigging tube connection structure of the embodiment of the present invention, details of the structure of the inner connecting part, the inner pin insertion hole, the outer connecting part, the outer pin insertion hole, and the stop pin, and the details of the structure when fixing the grommet and the adapter with the stop pin. It is an explanatory diagram showing operation.

The rigging tube connection structure according to the embodiment of the present invention includes a grommet that is fixed to the outboard motor and through which wiring is inserted, an adapter that is attached to the rigging tube and fits with the grommet, and a grommet that fits with the adapter. It is equipped with a fixing pin that secures the two together after they are attached.

The grommet is formed in a columnar shape and has a wiring insertion hole extending in the axial direction for passing the wiring. Further, a fitting portion is formed at one end in the axial direction of the grommet. Further, a first connecting portion is formed of an elastic material on the outer peripheral side of the grommet, and a first pin insertion hole for inserting a stop pin is formed in the first connecting portion. Further, a convex portion is formed in the first pin insertion hole and projects inward in the radial direction of the first pin insertion hole.

The adapter is formed into a cylindrical shape, and an attachment portion for attaching a rigging tube is formed at one end in the axial direction of the adapter. Further, a fitting hole that fits into the fitting portion is formed at the other end of the adapter in the axial direction. Further, a second connecting portion is formed on the outer peripheral side of the adapter. The second connecting portion is arranged to face the first connecting portion in a state where the fitting portion and the fitting hole are fitted. Further, a second pin insertion hole is formed in the second connecting part for inserting the stop pin, and the second pin insertion hole is inserted into the first pin insertion hole in a state where the fitting part and the fitting hole are fitted. It is arranged to correspond to the pin insertion hole.

The retaining pin includes a rod-shaped body, a head provided at one end of the body and having a larger diameter than the body, and a recess formed on the outer peripheral surface of the body into which the convex portion is inserted. . The body of the locking pin is inserted into the second pin insertion hole, and then into the first pin insertion hole, with the fitting portion and the fitting hole fitted together. Further, when the body is inserted into the first pin insertion hole, the convex portion enters the recess of the stop pin in the first pin insertion hole.

In the rigging tube connection structure having such a configuration, when connecting the rigging tube to the grommet, the operator must first connect the fitting hole of the adapter attached to the rigging tube and the fitting part of the grommet to each other. Fit together. When the fitting portion of the grommet and the fitting hole of the adapter are fitted, the first connecting portion formed in the grommet and the second connecting portion formed in the adapter face each other. The first pin insertion hole formed in the first connection part and the second pin insertion hole formed in the second connection part correspond to each other, and the first pin insertion hole and the second pin insertion hole formed in the second connection part correspond to each other. The pin insertion hole is connected and communicated with the pin insertion hole.

Next, the operator inserts the other end side (tip side) of the body of the stop pin into the hole where the first pin insertion hole and the second pin insertion hole communicate with each other. Insert it toward pin insertion hole 1. When the tip end of the body of the locking pin passes through the second pin insertion hole and enters the first pin insertion hole, the tip side of the body hits a convex portion formed in the first pin insertion hole. When the operator pushes the locking pin into the hole where the first pin insertion hole and the second pin insertion hole communicate with each other, the convex portion is pushed toward the tip side of the body of the locking pin, and the elastic material The first connecting portion formed by this is elastically deformed, and a portion of the first pin insertion hole expands in diameter. As a result, the leading end of the body of the locking pin passes over the convex portion and enters the first pin insertion hole. When the tip of the body of the locking pin enters the first pin insertion hole, the convex portion formed in the first pin insertion hole enters the recess formed on the outer peripheral surface of the body of the locking pin. .

The convex portion enters the concave portion of the stop pin, so that the stop pin does not fall out from the hole where the first pin insertion hole and the second pin insertion hole communicate, and the grommet is fitted to each other by the stop pin. and the adapter are fixed.

According to the rigging tube connection structure of the embodiment of the present invention, after fitting the grommet and the adapter, the stop pin is simply pushed into the hole where the first pin insertion hole and the second pin insertion hole communicate with each other. , the grommet and the adapter can be fixed. That is, the work of fixing the grommet and the adapter that are fitted to each other requires only one step of pushing the locking pin into a hole where the first pin insertion hole and the second pin insertion hole communicate with each other. Therefore, the workability of fixing the grommet and the adapter can be improved.

Further, the operation of pushing the stop pin into the hole where the first pin insertion hole and the second pin insertion hole communicate is an extremely simple operation that can be completed in one action. Therefore, it is unlikely that this operation will fail and the pin will fall into the sea and be lost. Therefore, it is possible to reduce the effort and expense of repurchasing the stop pin, facilitate maintenance, and reduce maintenance costs.

Further, in the rigging tube connection structure according to the embodiment of the present invention, the only component used to fix the grommet and the adapter is the stop pin. When the number of parts is small, it becomes easier to manage the parts. According to the rigging tube connection structure of the embodiment of the present invention, parts management is easier compared to a conventional rigging tube connection structure in which there are two parts used to fix the grommet and the adapter: a retaining pin and a retaining ring. It's easy. Specifically, the retaining pin is less likely to be lost. Therefore, it is possible to reduce the effort and expense of repurchasing the locking pin, and to facilitate maintenance and reduce maintenance costs.

Embodiments of the rigging tube connection structure of the present invention will be described with reference to FIGS. 1 to 7. Hereinafter, when describing the directions of upper (u), lower (d), front (f), rear (b), left (l), and right (r) regarding the examples, the lower right of each figure will be described. Follow the arrow you drew. Note that the side where the outboard motor is attached to the hull is defined as the front side, and the left (l) and right (r) are based on the state when the outboard motor is viewed from the front.

FIG. 1 shows an outboard motor 1 to which a rigging tube connection structure 21 according to an embodiment of the present invention is applied. FIG. 2 shows the outboard motor 1 in FIG. 1 viewed from the front. In FIG. 1, an outboard motor 1 includes an engine 2 disposed at the top thereof, and a propeller 3 disposed at the bottom of the outboard motor 1. The outboard motor 1 also includes a propeller shaft 4 that forms the rotation axis of the propeller 3, a drive shaft 5 that transmits the power of the engine 2 to the propeller shaft 4, and a drive shaft 5 that converts the rotation of the drive shaft 5 into rotation of the propeller shaft 4. A gear mechanism 6 is provided. Further, the outboard motor 1 is connected to a clamp bracket 7 that fixes the outboard motor 1 to the stern plate of the hull, and is connected to the clamp bracket 7 to support the outboard motor 1 so as to be rotatable in the horizontal direction with respect to the hull. A swivel bracket 8 is provided.

Further, an engine case 11 and an engine cover 12 for housing the engine 2 are provided on the upper part of the outboard motor 1. Further, on the front side of the engine case 11, there is a wiring pull-out part 14 for pulling out wiring 13 such as a throttle cable and a fuel hose that connect the outboard motor 1 and the hull from inside the outboard motor 1 to the outside. It is provided. The wiring pull-out section 14 is arranged on the front left side of the engine case 11, as shown in FIG. The wiring pull-out portion 14 also supports the wiring 13 and prevents seawater or the like from entering the outboard motor 1 through the hole for pulling the wiring 13 out from the inside of the outboard motor 1. To prevent this, a grommet 22 is provided. Further, an end portion of a rigging tube 15 that covers the wiring 13 is connected to the grommet 22 via an adapter 31.

FIG. 3 shows the rigging tube connection structure 21 and the rigging tube 15 in an exploded state. FIG. 4 shows the rigging tube connection structure 21 in which the adapter 31 attached to the rigging tube 15 and the grommet 22 are fitted into each other and fixed by a stop pin 41. FIG. 5 shows the adapter 31 viewed from the direction of arrow VV in FIG. FIG. 6 shows a cross section of the rigging tube connection structure 21 viewed from the direction of arrow VI-VI in FIG. FIG. 7 shows the details of the structure of the inner connecting part 27, the inner pin insertion hole 28, the outer connecting part 34, the outer pin insertion hole 36, and the stop pin 41, and the connection between the grommet 22 and the adapter 31 by the stop pin 41 in the rigging tube connection structure 21. This shows the operation when fixing the and.

In FIG. 3, the rigging tube connection structure 21 includes a grommet 22 through which the wiring 13 is inserted, an adapter 31 attached to the rigging tube 15, and two stop pins 41.

The grommet 22 is made of an elastic material such as rubber and has a cylindrical shape with an axis extending in the front-rear direction. Furthermore, the grommet 22 has a plurality of wiring insertion holes 23 through which the wiring 13 is passed. Each wiring insertion hole 23 passes through the grommet 22 in the axial direction (front-back direction). As shown in FIG. 6, the shape and size of each wiring insertion hole 23 is such that the outer circumferential surface of the wiring passing through the wiring insertion hole 23 and the inner circumferential surface of the wiring insertion hole 23 come into contact to form a seal between the two. It is set according to the cross-sectional shape, diameter, etc. of the wiring 13 so that Furthermore, a partition portion 24 is formed on the front surface of the grommet 22 to partition the plurality of wirings 13.

Furthermore, a fitting portion 25 that fits into the fitting hole 33 of the adapter 31 is formed at one axial end side portion (front end side portion) of the grommet 22 . Further, the other axial end side portion (rear end side portion) of the grommet 22 serves as a base portion 26 for fixing the grommet 22 to the wiring pull-out portion 14 of the outboard motor 1.

Furthermore, a pair of inner connecting portions 27 as first connecting portions are formed at the right and left portions on the outer peripheral side of the proximal end portion (rear end portion) of the fitting portion 25, respectively. The pair of inner connecting portions 27 are respectively inserted into the insertion portions 35 of the pair of outer connecting portions 34 of the adapter 31 when the grommet 22 and the adapter 31 are fitted together. Each inner connecting portion 27 is integrated with the grommet 22 as a part of the grommet 22, and is made of the same elastic material as the grommet 22, such as rubber. Each of the inner connecting portions 27 is formed into a substantially rectangular parallelepiped shape as shown in FIG. There is. Further, the left inner connecting portion 27 is formed symmetrically with the right inner connecting portion 27, and protrudes leftward from the left portion on the outer peripheral side of the rear end side portion of the fitting portion 25.

Further, each inner connecting portion 27 is formed with an inner pin insertion hole 28 as a first pin insertion hole through which the body portion 42 of the stop pin 41 is inserted. Each inner pin insertion hole 28 extends in the vertical direction, and passes through the inner connecting portion 27 as shown in FIG. 7(A).

Further, as shown in FIG. 7(A), a convex portion 29 that projects inward in the radial direction of the inner pin insertion hole 28 is formed on the circumferential surface of each inner pin insertion hole 28 . The convex portion 29 is disposed at the center of the inner pin insertion hole 28 in the vertical direction, and is formed in an annular shape when viewed from above over the entire circumference of the inner peripheral surface of the inner pin insertion hole 28 . Further, the cross-sectional shape of the protruding end of the convex portion 29 is R-shaped like an arc.

In addition, the inner diameter of the portion of the inner pin insertion hole 28 where the convex portion 29 is not formed is such that the body portion 42 of the stop pin 41 can be smoothly inserted into the inner pin insertion hole 28 and In order to prevent the body 42 of the stop pin 41 inserted into the body from shaking in the radial direction, for example, the outer diameter dimension D1 of the body 42 of the stop pin 41 is slightly smaller than the outer diameter dimension D1 of the portion where the recess 45 is not formed. set to the value. Further, the inner diameter dimension D2 of the portion of the inner pin insertion hole 28 where the convex portion 29 is formed is, for example, approximately 70% of the outer diameter dimension D1 of the portion of the body portion 42 of the stopper pin 41 where the recess portion 45 is not formed. is set to the value of

The adapter 31 is formed into a cylindrical shape, as shown in FIG. Moreover, it is preferable that the adapter 31 be formed of resin or metal, for example. The adapter 31 of this embodiment is made of resin. An attachment hole 32 serving as an attachment portion for attaching the end of the rigging tube 15 is formed on the inner peripheral side of one axial end (front end) of the adapter 31 .

Further, as shown in FIG. 5, a fitting hole 33 that fits into the fitting portion 25 of the grommet 22 is formed in the other axial end portion (rear end portion) of the adapter 31. As shown in FIG. That is, the inner peripheral side of the rear end side portion of the adapter 31 serves as the fitting hole 33. The inner diameter of the fitting hole 33 is set such that when the fitting part 25 is inserted into the fitting hole 33, the outer circumferential surface of the fitting part 25 comes into contact with the inner circumferential surface of the fitting hole 33, creating a seal between the two. For example, it is set to a value slightly smaller than the outer diameter dimension of the fitting portion 25.

Further, a pair of outer connecting portions 34 as second connecting portions are formed on the right and left portions of the outer peripheral side of the tip side portion (rear end side portion) of the adapter 31, respectively. As shown in FIG. 3, the right outer connecting portion 34 protrudes rightward from the right portion on the outer peripheral side of the rear end portion of the adapter 31. As shown in FIG. Further, the left outer connecting portion 34 is formed symmetrically with the right outer connecting portion 34, and protrudes leftward from the left portion on the outer peripheral side of the rear end side portion of the adapter 31. Further, as shown in FIG. 5, an insertion portion 35 is formed in each outer connecting portion 34. As shown in FIG. The insertion portion 35 is a bottomed hole opened on the rear surface of each outer connection portion 34, and the left portion of the insertion portion 35 formed in the right outer connection portion 34 communicates with the fitting hole 33, and the left side of the insertion portion 35 is connected to the fitting hole 33. The right side of the insertion portion 35 formed in the connecting portion 34 communicates with the fitting hole 33 . Further, the insertion portions 35 of the pair of outer connecting portions 34 are arranged to face the pair of inner connecting portions 27 of the grommet 22, respectively. When the fitting portion 25 of the grommet 22 and the fitting hole 33 of the adapter 31 are fitted, the pair of inner connecting portions 27 are inserted into the insertion portions 35 of the pair of outer connecting portions 34, respectively.

Further, as shown in FIG. 6, in each outer connecting portion 34, an upper wall portion 34A located above the insertion portion 35 and a lower wall portion 34B located below the insertion portion 35 are provided with a body of the stop pin 41. An outer pin insertion hole 36 is formed as a second pin insertion hole through which the portion 42 is inserted. As shown in FIG. 7A, the pair of outer pin insertion holes 36 both extend in the vertical direction, and one of the outer pin insertion holes 36 extends in the upper wall portion 34A of the outer connecting portion 34 in the vertical direction. The other outer pin insertion hole 36 passes through the lower wall portion 34B of the outer connecting portion 34 in the vertical direction. Further, the pair of outer pin insertion holes 36 are arranged at positions corresponding to each other in the vertical direction. Further, these pair of outer pin insertion holes 36 are in a state where the fitting portion 25 of the grommet 22 and the fitting hole 33 of the adapter 31 are fitted, that is, the inner connecting portion 27 is inserted into the insertion portion 35 of the outer connecting portion 34. It is arranged so as to correspond to the inner pin insertion hole 28 in the inserted state.

Each stop pin 41 is made of metal, for example. As shown in FIG. 3, each stop pin 41 has a rod-shaped body 42 and a head 43 provided at one end (base end) of the body 42. The diameter of the head 43 is larger than the diameter of the body 42. Further, the other end portion (tip portion) 42A of the body portion 42 is chamfered.

Furthermore, each stop pin 41 has a recess 45 into which a convex portion 29 formed in the inner pin insertion hole 28 of the grommet 22 is inserted. The recess 45 is disposed at the center of the body 42 in the vertical direction, and is formed over the entire circumference of the outer peripheral surface of the body 42 . Further, as shown in FIG. amount) or higher. Note that the depth of the recess 45 is larger than the height of the protrusion 29, so that when the body 42 of the stop pin 41 is inserted into the inner pin insertion hole 28, the tip of the protrusion 29 is in the recess 45. It may be arranged so that it does not touch the bottom surface all the time. Thereby, wear of the convex portion 29 due to vibrations of the engine 2 or the like can be suppressed.

Further, in the rigging tube connection structure 21, as shown in FIG. When the pin 41 is sequentially inserted into the upper outer pin insertion hole 36, the inner pin insertion hole 28, and the lower outer pin insertion hole 36, and the back surface 43A of the head 43 of the stop pin 41 contacts the upper surface 34C of the outer connecting portion 34, The convex portion 29 is located approximately at the center in the vertical direction within the recess 45, and has a side surface 45A located on one side (base end side) in the extension direction of the stop pin 41 in the recess 45, and a side surface 45A located on the other side (the proximal end side) in the extension direction of the stop pin 41. side 45B). Specifically, as shown in FIG. 7(A), the width W1 of the recess 45 in the extension direction of the stop pin 41 is the width W2 of the convex part 29 in the extension direction (vertical direction) of the inner pin insertion hole 28. is set to a value greater than . Further, as shown in FIG. 7C, the distance K1 between the position of the back surface 43A of the head 43 of the stop pin 41 and the center position of the recess 45 in the extension direction of the stop pin 41 is It is set to be approximately equal to the sum of the thickness dimension K2 of the upper wall portion 34A and the distance K3 between the upper surface 27A of the inner connecting portion 27 and the vertical center position of the convex portion 29.

In the rigging tube connection structure 21 having such a configuration, when connecting the rigging tube 15 to the grommet 22, the operator first connects the pair of outer connecting portions formed on the adapter 31 attached to the rigging tube 15. The fitting hole 33 of the adapter 31 and the fitting part 25 of the grommet 22 are fitted to each other while aligning the position of the inner connecting part 34 and the pair of inner connecting parts 27 formed in the fitting part 25 of the grommet 22.

Simultaneously with the fitting between the fitting hole 33 and the fitting portion 25 , the pair of inner connecting portions 27 are inserted into the insertion portions 35 of the pair of outer connecting portions 34 . The outer pin insertion hole 36 formed in the upper wall 34A of the right outer connecting portion 34, the inner pin insertion hole 28 formed in the right inner connecting portion 27, and the lower wall of the right outer connecting portion 34. The outer pin insertion holes 36 formed in the portion 34B correspond to each other, and these holes are connected to form a continuous hole. Similarly, the outer pin insertion hole 36 formed in the upper wall 34A of the left outer connecting part 34, the inner pin insertion hole 28 formed in the left inner connecting part 27, and the lower part of the left outer connecting part 34 The outer pin insertion holes 36 formed in the wall portion 34B correspond to each other, and these holes are connected to form a continuous hole. Hereinafter, the outer pin insertion hole 36 formed in the upper wall 34A of the right outer connecting part 34, the inner pin insertion hole 28 formed in the right inner connecting part 27, and the lower wall of the right outer connecting part 34 will be described below. A continuous hole connected to the outer pin insertion hole 36 formed in the portion 34B is referred to as a "right side communication hole." 50 in FIG. 7(A) indicates a right side communication hole. Further, an outer pin insertion hole 36 formed in the upper wall 34A of the left outer connecting portion 34, an inner pin insertion hole 28 formed in the left inner connecting portion 27, and a lower wall of the left outer connecting portion 34. A continuous hole connected to the outer pin insertion hole 36 formed in the portion 34B is referred to as a "left side communication hole."

Next, as shown in FIG. 7(A), the operator first inserts the distal end side of the body 42 of one of the two fixing pins 41 into the right side communication hole 50. Insert it downwards. As a result, the tip end side of the body portion 42 of the stop pin 41 smoothly passes through the outer pin insertion hole 36 formed in the upper wall portion 34A of the right outer connecting portion 34, and passes smoothly through the outer pin insertion hole 36 formed in the upper wall portion 34A of the right outer connecting portion 34. It enters the inner pin insertion hole 28. When the tip of the body 42 of the stop pin 41 enters the inner pin insertion hole 28 formed in the right inner connecting portion 27, the tip of the body 42 of the stop pin 41 enters the inner pin insertion hole 28. This corresponds to the convex portion 29 formed in the. This creates resistance that prevents the stop pin 41 from entering deep into the inner pin insertion hole 28.

However, this resistance is not very large. When the operator lightly pushes the stop pin 41 toward the right side communication hole 50, the stop pin 41 enters deep into the inner pin insertion hole 28. That is, when the operator lightly pushes the stop pin 41 downward into the right side communication hole 50, the convex portion 29 is pushed toward the tip side of the body 42 of the stop pin 41, as shown in FIG. 7(B). As a result, the inner connecting portion 27 is elastically deformed, and a portion of the inner pin insertion hole 28 expands in diameter. As a result, the distal end side of the body portion 42 of the stop pin 41 passes over the convex portion 29 and enters the inner pin insertion hole 28 .

When the distal end side of the body 42 of the stop pin 41 enters the inner pin insertion hole 28, the convex portion 29 enters the recess 45 formed on the outer peripheral surface of the body 42 of the stop pin 41. When the convex portion 29 enters the concave portion 45, the shape of the inner connecting portion 27 that had been elastically deformed returns to its original shape, and the resistance that was preventing the stop pin 41 from entering the right side communication hole 50 disappears. As soon as the convex part 29 enters the concave part 45, the above-mentioned resistance disappears, so that a click feeling is transmitted to the hand of the operator who is pushing the stop pin 41 into the right side communication hole 50.

Furthermore, after the convex part 29 enters the concave part 45, the above-mentioned resistance disappears, so that the tip side of the body part 42 of the stop pin 41 smoothly passes through the inner pin insertion hole 28, as shown in FIG. 7(C). and enters the outer pin insertion hole 36 formed in the lower wall portion 34B of the right outer connecting portion 34. Thereafter, the back surface 43A of the head 43 of the locking pin 41 hits the area around the opening of the outer pin insertion hole 36 on the upper surface 34C of the right outer connecting portion 34, and the right side communication hole 50 of the body portion 42 of the locking pin 41 hits the upper surface 34C of the right outer connecting portion 34. Entry into the area will be stopped.

Here, in the rigging tube connection structure 21, as shown in FIG. When in contact with the upper surface 34C of the outer connecting portion 34, the convex portion 29 is located approximately at the vertical center in the recess 45, and in the recess 45, the side surface 45A located on the base end side of the stop pin 41 and the stop pin 41 It is configured to be separated from both side surfaces 45B located on the tip side. With this configuration, when the operator pushes the stop pin 41 into the right side communication hole 50 and the body 42 of the stop pin 41 is completely inserted into the right side communication hole 50, the head 43 of the stop pin 41 The back surface 43A and the upper surface 34C of the outer connecting portion 34 are in strong contact with each other, and a loud clicking sound is reliably produced.

That is, as shown in FIG. 7(B), in the inner pin insertion hole 28, after the tip side of the body 42 of the stop pin 41 hits the convex part 29, until just before the convex part 29 enters the concave part 45. As described above, resistance occurs that prevents the body portion 42 of the stop pin 41 from entering deep into the inner pin insertion hole 28. However, the moment the tip of the body 42 of the stop pin 41 passes over the convex portion 29 and the convex portion 29 enters the concave portion 45, the resistance disappears. When inserting the stop pin 41 into the right side communication hole 50, the operator applies a force large enough to push the stop pin 41 deep into the right side communication hole 50 against the above-mentioned resistance. 41 and pushes the locking pin 41 downward, so after the protrusion 29 enters the recess 45 of the locking pin 41 and the above resistance disappears, the magnitude of the force applied by the operator to the locking pin 41 is , the force that causes the body portion 42 of the stop pin 41 to enter deep into the right side communication hole 50 becomes excessive. As a result, after the protrusion 29 enters the recess 45, the body 42 of the stop pin 41 moves deep inside the right side communication hole 50 at a high speed, and the back surface 43A of the head 43 of the stop pin 41 moves outward. It strongly contacts (strongly hits) the upper surface 34C of the connecting portion 34, and therefore a loud contact sound (hitting sound) is generated. As shown in FIG. 7(C), when the back surface 43A of the head 43 of the stop pin 41 contacts the upper surface 34C of the outer connecting portion 34, the convex portion 29 is located approximately at the vertical center in the recess 45, Since it is separated from both side surfaces 45A and 45B located on the base end side and the distal end side of the stop pin 41 in the recess 45, the back surface 43A of the head 43 of the stop pin 41 comes into contact with the top surface 34C of the outer connecting portion 34. In an instant, the resistance mentioned above definitely disappears. Therefore, when the operator pushes the stop pin 41 into the right side communication hole 50 and the body 42 of the stop pin 41 enters the right side communication hole 50 completely, a loud clicking sound is definitely generated. .

Next, the operator inserts the tip end of the body 42 of the other of the two stop pins 41 into the left side communication hole from above to below. Similar to when one stop pin 41 is inserted into the right side communication hole 50, the moment the protrusion 29 enters the recess 45, the operator's hand that is pushing the other stop pin 41 into the left side communication hole clicks. I can feel the feeling. Furthermore, when the body portion 42 of the stop pin 41 is completely inserted into the left side communication hole, the back surface 43A of the head 43 of the stop pin 41 and the upper surface of the left outer connecting portion 34 are in strong contact with each other, There will definitely be a loud clicking sound.

The two fixing pins 41 are inserted into the right side communication hole 50 and the left side communication hole, respectively, thereby fixing the grommet 22 and the adapter 31 that are fitted to each other. Furthermore, by fitting the convex portion 29 formed in the inner pin insertion hole 28 into the recess 45 of each stop pin 41, each stop pin 41 is prevented from falling out of the inner pin insertion hole 28.

As explained above, according to the rigging tube connection structure 21 of the embodiment of the present invention, after fitting the grommet 22 and the adapter 31, the fixing pin 41 can be simply pushed into the right side communication hole 50 and the left side communication hole, respectively. , the grommet 22 and the adapter 31 can be easily fixed. That is, the work of fixing the grommet 22 and the adapter 31 can be completed with only the simple process of pushing the stop pin 41 into each of the right side communication hole 50 and the left side communication hole, and work efficiency can be improved. . In addition, since the grommet 22 and the adapter 31 can be fixed by simply pushing the fixing pin 41 into the right side communication hole 50 and the left side communication hole, it is possible to fix the grommet 22 and the adapter 31 by pushing the fixing pin 41 into the right side communication hole 50 and the left side communication hole. 41 is unlikely to fall into the sea and be lost. Therefore, it is possible to reduce the effort and expense of repurchasing the retaining pins 41 to replace the lost retaining pins 41, facilitate maintenance, and reduce maintenance costs. Moreover, since the only part used to fix the grommet 22 and the adapter 31 is the stop pin 41, management of the parts becomes easy. Therefore, the retaining pin 41 is less likely to be lost. Therefore, the effort and expense of repurchasing the stop pin 41 can be reduced, and maintenance can be facilitated and maintenance costs can be reduced. Furthermore, since a retaining ring that is prone to rust early is not used to fix the grommet 22 and the adapter 31, the effort and expense of replacing the retaining ring can be eliminated.

Further, in the rigging tube connection structure 21 of the embodiment of the present invention, as shown in FIG. The body portion 42 of 41 is sequentially inserted into the upper outer pin insertion hole 36, the inner pin insertion hole 28, and the lower outer pin insertion hole 36, and the back surface 43A of the head 43 of the stop pin 41 is inserted into the upper surface of the outer connecting portion 34. 34C, the convex portion 29 is located approximately in the vertical center of the concave portion 45 and is separated from both side surfaces 45A and 45B located on the proximal end side and the distal end side of the stop pin 41 in the concave portion 45, respectively. is configured to be. With this configuration, when the body part 42 of the stop pin 41 completely enters the right side communication hole 50 or when the body part 42 of the stop pin 41 completely enters the left side communication hole, the stop pin The back surface 43A of the head 43 of the head 41 and the upper surface 34C of the outer connecting portion 34 can be brought into strong contact with each other, and a loud contact sound can be reliably generated. By hearing the contact sound, the operator can recognize that the locking pin has been inserted correctly and reliably.

In addition, in the rigging tube connection structure 21 of the embodiment of the present invention, the inner diameter dimension D2 of the portion where the convex portion 29 is formed in the inner pin insertion hole 28 is, for example, the inner diameter dimension D2 of the portion where the convex portion 29 is formed. The value was set to approximately 70% of the outer diameter dimension D1 of the portion not covered. With this configuration, when inserting the body part 42 of the stop pin 41 into the right side communication hole 50 (left side communication hole), the tip side of the body part 42 of the stop pin 41 hits the convex part 29 of the inner pin insertion hole 28, and then the protrusion The magnitude of the resistance generated until just before the portion 29 enters the recess 45 can be set to an appropriate magnitude for creating the above-mentioned click feeling and generating the above-mentioned contact sound.

Furthermore, in the rigging tube connection structure 21 according to the embodiment of the present invention, a recess 45 is disposed at the center of the body portion 42 of the stop pin 41 in the extending direction. With this configuration, when inserting the body part 42 of the stop pin 41 into the right side communication hole 50 (left side communication hole), the length of the part of the body part 42 of the stop pin 41 that hits the convex part 29 of the inner pin insertion hole 28 can be set to an appropriate length in consideration of the balance between the durability of the convex portion 29 and the length of time during which the above-mentioned resistance occurs. That is, if the recess 45 is arranged on the base end side of the body 42 of the stop pin 41, when the body 42 of the stop pin 41 is inserted, the body 42 will hit the convex part 29 and a load will be applied to the convex part 29. If the time becomes too long, the possibility that the convex portion 29 will be damaged increases. On the other hand, if the concave portion 45 is placed on the tip side of the body portion 42 of the stop pin 41, the time period during which the body portion 42 hits the convex portion 29 and the above-mentioned resistance occurs when the body portion 42 of the stop pin 41 is inserted is If it becomes too short, it becomes difficult to generate an appropriate click feeling or loud contact sound. By arranging the concave portion 45 at the center of the body portion 42 of the locking pin 41 in the extending direction, the durability of the convex portion 29 can be increased, and an appropriate click feeling and loud contact sound can be generated.

Further, in the rigging tube connection structure 21 according to the embodiment of the present invention, both the inner pin insertion hole 28 and the outer pin insertion hole 36 extend in the vertical direction. With this configuration, the operator can insert the stop pin 41 into the right side communication hole 50 or the left side communication hole from top to bottom. This facilitates the work of inserting the stop pin 41, and prevents the stop pin 41 from falling into the sea due to failure in inserting the stop pin 41. Further, since the stop pin 41 is inserted in the direction of gravity, the stop pin 41 inserted into the right side communication hole 50 (left side communication hole) is difficult to fall out from the right side communication hole 50 (left side communication hole).

Furthermore, in the rigging tube connection structure 21 of the embodiment of the present invention, the insertion portion 35 is formed in each outer connection portion 34, and when the fitting portion 25 of the grommet 22 and the fitting hole 33 of the adapter 31 are fitted, The inner connecting part 27 is inserted into the insertion part. With this configuration, when fitting the grommet 22 and the adapter 31, the fitting part 25 of the grommet 22 and the fitting hole 33 of the adapter 31 can be easily aligned, and the fitting part 25 and the fitting hole 33 can be easily aligned. Incorrect fitting can be prevented.

In the above embodiment, the pair of inner connecting parts 27 are arranged on the left and right parts of the outer periphery of the grommet 22, and the pair of outer connecting parts 34 are arranged on the left and right parts of the outer periphery of the adapter 31. , an inner pin insertion hole 28 extending in the vertical direction was formed in each inner connecting portion 27, and an outer pin insertion hole 36 extending in the vertical direction was formed in each outer connecting portion 34, but the inner connecting portion 27 and the outer connecting portion 34 and the direction of extension of the inner pin insertion hole 28 and the outer pin insertion hole 36 are not limited thereto. For example, a pair of inner connecting portions 27 are arranged at the upper and lower portions of the outer circumference of the grommet 22, a pair of outer connecting portions 34 are arranged at the upper and lower portions of the outer circumferential side of the adapter 31, and each inner connecting portion 27 is The inner pin insertion hole 28 may be formed to extend in the horizontal direction, and the outer pin insertion hole 36 may be formed in each outer connecting portion 34 to extend in the left-right direction. Further, the number of inner connecting portions formed on the grommet and the number of outer connecting portions formed on the adapter are not limited.

In addition, in the above embodiment, the rigging tube connection structure that connects the rigging tube that covers the wiring such as the throttle cable and fuel hose that connects the outboard motor and the hull and the grommet is taken as an example, but the present invention When applying the rigging tube connection structure, the type of wiring covered by the rigging tube does not matter. The present invention includes, for example, a rigging tube and a grommet that cover electrical cables that connect the outboard motor and a remote controller for shifting the outboard motor, and wiring that connects various optional items to the outboard motor. It can also be applied to connections etc.

Further, the present invention can be modified as appropriate within the scope of the invention as can be read from the claims and the entire specification, and the rigging tube connection structure accompanied by such modifications is also applicable to the technology of the present invention. Included in thought.

9 Wiring 11 Rigging tube 21 Rigging tube connection structure 22 Grommet 23 Wiring insertion hole 25 Fitting part 27 Inner connecting part (first connecting part)
28 Inner pin insertion hole (first pin insertion hole)
29 Convex portion 31 Adapter 32 Mounting hole (mounting part)
33 Fitting hole 34 Outer connecting part (second connecting part)
43C Top surface 36 Outer pin insertion hole (second pin insertion hole)
41 Stopping pin 42 Body 43 Head 43B Back surface 45 Recess 45A, 45B Side surface

Claims (4)

The rigging includes a grommet that is fixed to the outboard motor and through which wiring is inserted, an adapter that is attached to the rigging tube, and a stop pin, and the grommet and the adapter are fitted and fixed by the stop pin. A rigging tube connection structure that connects a tube to the grommet,
The grommet is formed in a columnar shape and has a wiring insertion hole extending in the axial direction for passing the wiring, a fitting portion is formed at one end in the axial direction of the grommet, and a fitting portion is formed at one end side in the axial direction of the grommet, A first connecting portion is formed of an elastic material in the side portion, a first pin insertion hole for inserting the stop pin is formed in the first connecting portion, and a first pin insertion hole is formed in the first pin insertion hole. is formed with a convex portion projecting inward in the radial direction of the first pin insertion hole,
The adapter is formed into a cylindrical shape, and a mounting portion for attaching the rigging tube is formed at one axial end of the adapter, and a mounting portion for fitting the rigging tube is formed at the other axial end of the adapter. A fitting hole is formed in the adapter, and a second connecting part is formed in the outer peripheral side of the adapter, and the second connecting part is connected to the fitting hole in a state where the fitting part and the fitting hole are fitted. A second pin insertion hole is formed in the second connection part to face the first connection part, and the second pin insertion hole is arranged to face the first connection part. The fitting part and the fitting hole are arranged so as to correspond to the first pin insertion hole in a fitted state,
The retaining pin includes a rod-shaped body, a head provided on one end side of the body and having a larger diameter than the body, and a recess formed on the outer peripheral surface of the body into which the convex portion is inserted. The body is inserted into the second pin insertion hole in a state in which the fitting portion and the fitting hole are fitted, and then inserted into the first pin insertion hole, and the body The rigging tube connection structure is characterized in that when the first pin insertion hole is inserted into the first pin insertion hole, the convex portion enters into the recess in the first pin insertion hole. The width of the concave portion in the extending direction of the locking pin is larger than the width of the convex portion in the extending direction of the first pin insertion hole, and in a state where the fitting portion and the fitting hole are fitted, When the body is sequentially inserted into the second pin insertion hole and the first pin insertion hole and the back surface of the head comes into contact with the second connecting portion, the convex portion is inserted into the recess. The rigging tube according to claim 1, wherein the rigging tube is located at a distance from both a side surface located on one side in the extension direction of the stop pin and a side surface located on the other side in the extension direction of the stop pin in the recessed part. connection structure. The first pin insertion hole extends in the vertical direction in the first connecting portion, and the second pin insertion hole extends in the vertical direction in the second connecting portion. The rigging tube connection structure according to 1 or 2. An insertion part is formed in the second connection part, and the first connection part is inserted into the insertion part when the fitting part and the fitting hole are fitted together. The rigging tube connection structure according to any one of 1 to 3.

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