JP7377556B2 - power mount mechanism - Google Patents

Description

Applicable to Article 30, Paragraph 2 of the Patent Act Website publisher: Fujimura Manufacturing Co., Ltd. Website address: https://digital-structure. shop/shopdetail/000000000064/ Website publication date: June 1, 2021 [Publications, etc.] Website publisher: Hearts Marine Website address: https://heartsselect. shop-pro. jp/? pid=160339593 Website publication date: June 1, 2021 [Publications, etc.] Website publisher: Pro Shop Otsuka Ltd. Website publication address: https://www. ks-webshop. com/category/select/pid/35169 Website publication date: June 1, 2021

The present invention relates to a power mount mechanism.

Conventionally, when fishing on a lake, a simple electric outboard motor has been attached to a rental board and used in order to freely change fishing spots. The outboard motor includes a power unit (referred to as electric) and a power mount mechanism (simply referred to as mount). To attach an outboard motor, first attach a power mount mechanism to a base member provided horizontally at the end of the top surface of the boat. This is then done by attaching the power unit to the power mount mechanism. When attaching a power unit to a power mount mechanism, normally the power mount mechanism is unlocked, the power mount mechanism is deformed and opened, and the shaft of the propulsion unit is placed in a nearly horizontal position on the boat. Attach it. After installation, the power mount mechanism is returned to its original configuration to place the shaft in a vertical position, and the drive section with the propeller at the lower end of the power unit is lowered into the water and locked in that position. This state becomes, for example, a form as shown in FIG. 1 of Patent Document 1. Note that this power mount mechanism is usually provided as an accessory with the power unit, so the purchaser can immediately use such an outboard motor on a rental board without having to purchase a separate power mount mechanism. is possible.

However, most of these outboard motors are foreign products manufactured in the United States and other countries, and the official power mount mechanism (official product) is large. Official products like this can be said to be too heavy and large for boats used on small lakes like those in Japan. For this reason, as shown in Non-Patent Document 1, Japanese purchasers have their power mount mechanism cut short (the shortened power mount mechanism is called a short mount) at a shop that sells outboard motors. , and are used after being individually modified to smaller sizes to match the size of Japanese boats (referred to as modified products).

Note that such power mount mechanisms, including genuine products, always have a wire with a handle as shown in Non-Patent Document 1. By pulling this wire, the operator (user or purchaser) can unlock the posture of the power unit and raise the drive unit from the water surface or lower it into the water.

Japanese Unexamined Patent Publication No. 7-137693

Pro Shop K's, "Short Mount", Posted: January 25, 2016 by Boat Staff, [Searched June 23, 2021], Internet <URL=http://proshopks.sakura.ne.jp /boatblog/2016/01/post-429.html#:~:text=%E3%82%B7%E3%83%A7%E3%83%BC%E3%83%88%E3%83%9E%E3 %82%A6%E3%83%B3%E3%83%88%E3%81%A8%E3%81%AF%E3%80%81%E4%B8%BB,%E3%81%AA%E3% 81%A9%E5%88%A9%E7%82%B9%E3%81%8C%E5%A4%9A%E3%81%8F%E3%81%82%E3%82%8A%E3%81% BE%E3%81%99%E3%80%82＞

However, as shown in Non-Patent Document 1, in Japan, the regular size power mount mechanism (genuine product) is forcibly cut to make it lighter and smaller due to the user's convenience based on the usage situation in Japan. There is. For this reason, there remained a risk that modified products would have reduced functionality or safety issues.

At the same time, the above-mentioned wires are constructed to be subject to heavy loads and are likely to break after a reasonable period of use. If the wire is cut, it becomes impossible to release the above-mentioned locked state, so the drive section cannot be lifted out of the water, and the power unit cannot be removed from the power mount mechanism.

Therefore, the present invention was made to solve the above-mentioned problems.It is smaller and lighter than the conventional official product, but it can control the locked state of the power unit's posture regardless of the presence or absence of wires, and is safe. Our objective is to provide a highly efficient power mount mechanism.

The present invention is attached to a base member provided horizontally at the end of the upper surface of a boat, is capable of holding a shaft portion of a power unit that propels the boat, and is capable of rotating the shaft portion from a vertical state to a horizontal state. The power mount mechanism includes a first frame body attached to the base member, an upper opening on the top surface, and rotates on a first rotation axis provided at the tip of the first frame body. a second frame body that can be supported; an intermediate opening located between the first frame body and the second frame body and overlapping the upper opening in plan view; and guide holes on both sides. and a third frame body rotatably supported by a second rotation axis provided at a position closer to the center of the first frame body than the first rotation axis; a pressing portion provided at a position overlapping with the intermediate opening and capable of moving itself along the direction of the guide hole inside the third frame body by direct pressure of an operator's hand; a lock pin that loosely fits into the guide hole, and the lock pin is engaged with and disengaged from a recess provided in a rear end portion of the first frame body by movement of the pressing portion; a shaft holding member that is rotatably supported by the rear end of the frame body and the rear end of the third frame body and holds the shaft part, and the shaft holding member is rotatably supported by the rear end part of the frame body and the rear end part of the third frame body, The third frame body is rotated 180 degrees around the second rotation axis, the bottom surface of the third frame body is unfolded in a horizontal state, and the shaft holding member is rotated 90 degrees, This solves the above problem.

In particular, in the present invention, the fourth frame body is provided at a position overlapping the intermediate opening (located at a position overlapping the upper opening) in plan view, and the third frame body is moved by direct pressure of the operator's hand. It is equipped with a pressing part that can move itself along the direction of the guide hole inside, and a lock pin that loosely fits into the guide hole on both sides, and by moving the pressing part, the lock pin is moved to the rear end of the first frame It is configured to engage and disengage from a recess provided in the section. That is, even if there is no wire, by moving the pressing portion by direct pressure from the operator's hand, it is possible to control the locked state of the first frame body and the third frame body.

At the same time, when attaching and detaching the shaft part on the boat, the third frame body rotates 180 degrees around the second rotation axis, the bottom surface of the third frame body is unfolded in a horizontal state, and the shaft holding member is It is configured to be rotated 90 degrees. In other words, since the power mount mechanism is attached to the horizontal base member, the power unit can be mounted on the boat from the normal position of the power unit, that is, with the shaft of the power unit horizontal. The power unit can be attached to and detached from the power mount mechanism without particularly tilting it.

According to the present invention, it is possible to provide a highly safe power mount mechanism that is smaller and lighter than conventional genuine products, yet can control the locked state of the power unit's posture regardless of the presence or absence of wires. becomes.

A schematic diagram (perspective view (A), side view (B)) showing a state in which a power unit is attached to a boat using a power mount mechanism according to an embodiment of the present invention. Perspective views showing the power mount mechanism and power unit in Figure 1 (Figure (A) with the shaft portion of the power unit in a horizontal state, (B) view with the shaft portion of the power unit in a vertical state) Schematic diagram showing the closed and locked state of the power mount mechanism in Figure 1 (perspective view (A), side perspective view (B)) Schematic diagram showing the closed and locked state of the power mount mechanism in Figure 1 (side view (A), top view (B), rear view (C), front view (D)) Schematic diagram showing the power mount mechanism in Figure 1 in an open state (perspective view (A), side perspective view (B)) Schematic diagram showing the power mount mechanism in Figure 1 in an open state (side view (A), top view (B), rear view (C), front view (D)) Side view showing the power mount mechanism in Figure 1 in the closed to open state (Figure (A) when the rotation angle of the third frame body is 0 degrees, when the rotation angle of the third frame body is approximately 45 degrees) Diagram (B), Diagram when the rotation angle of the third frame body is approximately 90 degrees (C), Diagram when the rotation angle of the third frame body is approximately 135 degrees (D), Rotation of the third frame body Diagram when the angle is 180 degrees (E))

Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7. Note that in this embodiment, the front end refers to an end on the minus side in the X direction, and the rear end refers to an end on the plus side in the X direction.

First, the outboard motor attached to the boat BT will be briefly described based on FIGS.

As shown in FIGS. 1(A) and 1(B), the boat BT is a rental boat made of resin such as FRP used for fishing in lakes (for example, 12 feet long (approximately 3.5 feet long)). 6m)). Although it can be used as a rowing boat, in this embodiment, an outboard motor is attached to the bow of the boat BT, and the boat BT can be propelled electrically.

As shown in FIGS. 1A and 1B, the outboard motor includes a power unit DBU (also referred to as electric) and a power mount mechanism 100 (simply referred to as mount). Inside the BT, a battery that supplies power to the power unit DBU and an input device (using a foot or the like) that outputs commands to the power unit DBU are arranged.

The power unit DBU includes a drive section PP, a shaft section SP, and a control section CP, as shown in FIGS. 1A and 2B, and 2A and 2B. The drive unit PP includes a motor (which may include a speed reducer) and a propeller attached to the motor. The shaft part SP includes a hollow rod, supports the drive part PP at the lower end, and supports the control part CP at the upper end. Wiring for transmitting control signals and the like from the control section CP to the drive section PP is provided inside the shaft section SP. The control unit CP is connected to an input device and a battery (not shown), and controls the driving force and direction of the drive unit PP based on commands from the input device.

The power mount mechanism 100 includes a base member BM (also referred to as a bow deck) provided horizontally at the end of the upper surface of the boat BT, as shown in FIGS. It is a mount mechanism that can be attached to. The power mount mechanism 100 is capable of holding a shaft portion SP of a power unit DBU that propels the boat BT, and is capable of rotating the shaft portion SP from a vertical state to a horizontal state. Specifically, the power mount mechanism 100 includes a first frame body 102, a second frame body 110, a third frame body 120, a fourth frame body 130, and a shaft holding member 140 (mount adapter). Be prepared. The first frame body 102 is attached to the base member BM. The second frame body 110 has an upper opening 112A on the upper surface 112, and is rotatably supported by a first rotation axis SA1 provided at the tip of the first frame body 102 (FIG. 4(A), (B)). The third frame body 120 is disposed between the first frame body 102 and the second frame body 110, and has an intermediate opening 126A at a position overlapping the upper opening 112A in plan view, and guide holes 128 on both side surfaces 124. , (FIGS. 4(A) and 4(B)). Furthermore, the third frame body 120 is rotatably supported by a second rotation axis SA2 provided at a position closer to the center of the first frame body 102 than the first rotation axis SA1 (see FIG. 3(B) )). The fourth frame body 130 is provided at a position overlapping with the intermediate opening 126A in a plan view, and is moved inside the third frame body 120 in the direction of the guide hole 128 (X direction) by direct pressure of the operator's hand. It is provided with a pressing portion 138A that is movable along the guide hole 128, and a pin PN1 (lock pin) that loosely fits into the guide hole 128 on both side surfaces 134 (FIGS. 4(A), (B), and (C)). The fourth frame body 130 engages and disengages the pin PN1 from the recess 107 provided at the rear end of the first frame body 102 by moving the pressing portion 138A. The shaft holding member 140 is rotatably supported by the rear end portion of the second frame body 110 and the rear end portion of the third frame body 120, and is configured to hold the shaft portion SP (FIG. 3(A) , (B)). Note that in this embodiment, the front end refers to an end on the minus side in the X direction, and the rear end refers to an end on the plus side in the X direction.

Next, each component of the power mount mechanism 100 will be explained in detail.

The first frame body 102 is a member attached to the base member BM, as shown in FIGS. 2(A) and 2(B), and is basically constructed by bending a stainless steel plate shaped into a predetermined shape. . Specifically, the first frame body 102 includes a bottom surface 103, a side surface 104, and folded portions 103A, 105, and 106, as shown in FIGS. 3(A) and 3(B). The bottom surface 103 has a rectangular outer shape, contacts the base member BM, and is connected to the base member BM with a bolt (not shown) (FIG. 6(B)). Note that the bottom surface 103 is provided with through holes of various shapes (realized by forming punching holes or openings, cutting out the thickness, creating a hollow structure, etc.) in order to reduce weight (note that the side surface 104 etc. In this case, various shapes of through holes are formed from the viewpoint of aesthetic appearance.Furthermore, the through holes are applied to the second frame body 110, the third frame body 120, the fourth frame body 130, and the shaft holding member 140. ). As shown in FIGS. 4A and 4B, the side surfaces 104 are provided on both sides of the bottom surface 103 in the width direction (Y direction) along the X direction so as to be orthogonal to the bottom surface 103. The two side surfaces (both side surfaces) 104 are symmetrical to each other. The side surface 104 has a through hole that supports the first rotation axis SA1 at the tip thereof, and a through hole that is located closer to the center of the first frame body 102 than the first rotation axis SA1 and higher than the first rotation axis SA1. A through hole is provided to support the second rotation axis SA2 that comes to the position. Further, the side surface 104 has an opening in the center thereof. Note that the plate material forming the opening is bent inward from the side surface 104 along the X direction to form a folded portion 106. The folded portion 106 can come into contact with the bottom surface 122 of the third frame body 120, and can support the load from the bottom surface 122. Furthermore, the side surface 104 includes a recess 107 at its rear end that allows a pin PN1 (described later) that moves in the X direction to be engaged and detached. Note that, as shown in FIG. 3(B), a folded part 105 is provided at the tip of the bottom surface 103, which is folded back by 180 degrees along the Y direction. The folded portion 105 is located closer to the tip than the first rotation axis SA1, and a planar buffer member DM is provided on the upper surface thereof. The buffer member DM is, for example, an elastic member made of an organic material such as rubber (note that it is not limited to this, and may be a metal leaf spring or the like). Thereby, when the second frame body 110 rotates, the third frame body 120 comes into contact with this buffer member DM. Furthermore, a folded portion 103A that is folded back by 90 degrees along the Y direction is provided at the rear end portion of the bottom surface 103 (FIG. 5(A)). In this way, the bottom surface 103, side surface 104, and folded parts 103A, 105, and 106 of the first frame body 102 are integrally constructed by folding back a single stainless steel plate having a predetermined shape. Therefore, in combination with the use of stainless steel, the first frame body 102 has high rigidity and is extremely difficult to deform (hereinafter referred to as the second frame body 110, the third frame body 120, and the third frame body 120). The same effect can be achieved in the four-frame body 130).

As shown in FIGS. 3A and 3B, the second frame body 110 is a member attached to the upper side of the first frame body 102, and is basically made by bending an aluminum plate into a predetermined shape. It is configured. Specifically, the second frame body 110 includes an upper surface 112 and a side surface 114, as shown in FIGS. 4(A) and 4(B). The upper surface 112 is a particularly aesthetically appealing member and includes a plurality of large openings. The upper opening 112A is sized to allow the operator's hand to enter to some extent, while maintaining a sense of unity in design. The top surface 112 is curved in cross-section in the X direction, creating a strong aesthetic appearance while also contributing to the high rigidity of the top surface 112. Note that even when the second frame body 110 is in the maximum open state, the upper surface 112 does not come into contact with the base member BM, as shown in FIG. 5(B). The side surfaces 114 are disposed on both sides of the upper surface 112 in the width direction (Y direction), outside the side surface 104 of the first frame body 102, and are provided along the X direction so as to be parallel to the side surface 104. . The two side surfaces 114 are symmetrical to each other. A through hole that supports the first rotation axis SA1 is provided at the tip of the side surface 114, and a through hole that supports the third rotation axis SA3 is provided at the rear end of the side surface 114. That is, the second frame body 110 has a structure in which it is rotatably supported by the first rotation axis SA1 provided at the tip of the first frame body 102. At the first rotation axis SA1, the side surface 114 of the second frame body 110 is arranged adjacent to the outside of the side surface 104 of the first frame body 102 via the resin washer PW, as shown in FIG. 4(D). has been done. A retaining ring SR is arranged on the outside of the side surface 114 of the second frame body 110 via a metal washer MW, and the first rotation shaft SA1 is attached thereto.

As shown in FIGS. 3A and 3B, the third frame body 120 is a member disposed between the first frame body 102 and the second frame body 110, and basically has a predetermined shape. It is constructed by bending a stainless steel plate. Specifically, the third frame body 120 includes a bottom surface 122, a side surface 124, and a folded portion 126, as shown in FIGS. 4(B) and 5(A). The bottom surface 122 has a rectangular outer shape and can be supported by the folded portion 106 (FIG. 4(A)) of the first frame body 102. Note that the bottom surface 122 is provided with a support portion 122A for supporting two coil springs CS that pull the fourth frame body 130 in the X direction. The side surfaces 124 are arranged on both sides of the bottom surface 122 in the width direction (Y direction), inside the side surface 104 of the first frame body 102, and are provided along the X direction so as to be parallel to the side surface 104. . The two side surfaces 124 are symmetrical to each other. A through hole that supports the second rotation axis SA2 is provided at the tip of the side surface 124, and a through hole that supports the fourth rotation axis SA4 is provided at the rear end of the side surface 124. That is, the third frame body 120 is configured to be rotatably supported by the second rotation axis SA2 provided at a position closer to the center of the first frame body 102 than the first rotation axis SA1. Furthermore, a recess 124B is provided at the upper end of the side surface 124, as shown in FIG. 7(B). This recess 124B is provided to avoid collision with the first rotation axis SA1 when the third frame body 120 is reversed. A guide hole 128 is provided in the side surface 124 closer to the center than the fourth rotation axis SA4. Further, on the side surface 124, a pin PN2 is provided between the fourth rotation axis SA4 and the guide hole 128. The folded portion 126 is a portion that is bent inward from the side surface 124 along the X direction. The folded portion 126 constitutes only the end portion of the upper surface in the width direction of the third frame body 120, and does not have any other members forming the upper surface. That is, as shown in FIG. 4(B), the third frame body 120 is configured to include an intermediate opening 126A at a position overlapping the upper opening 112A in plan view. In addition, at the second rotation axis SA2, as shown in FIG. 6(C), the side surface 104 of the first frame body 102 is adjacent to the outside of the side surface 124 of the third frame body 120 via the resin washer PW. It is arranged as follows.

The fourth frame body 130 is a member disposed inside the third frame body 120, as shown in FIGS. 3(B) and 5(B), and is basically a stainless steel plate having a predetermined shape. It consists of folding. Specifically, as shown in FIGS. 4(B), (D), 5(B), and 6(B), the fourth frame body 130 has a bottom surface 132, a side surface 134, a folded portion 136, and a pressing portion. 138A and a pin PN1. The bottom surface 132 has a substantially rectangular outer shape, and a connecting portion 132A to which two coil springs CS are attached is provided at the tip. A large opening is provided in the center of the bottom surface 132 (FIG. 6(B)), and the plate material in that portion is bent perpendicularly from the bottom surface 132 along the Y direction to form a pressing portion 138A. Note that the reference numeral 138B near the rear end of the bottom surface 132 is an auxiliary hole for attaching a wire to release the lock function, similar to the conventional power mount mechanism. The side surfaces 134 are arranged on both sides of the bottom surface 132 in the width direction (Y direction), inside the side surface 124 of the third frame body 120, and are provided along the X direction so as to be parallel to the side surface 124. . The two side surfaces 134 are symmetrical to each other. A pin PN1 that loosely fits into the guide hole 128 is provided at the rear end of the side surface 134. Therefore, as the pin PN1 engages with the guide hole 128, the fourth frame body 130 is constantly pulled toward the distal end side of the third frame body 120 inside the third frame body 120. Note that the pin PN1 is moved integrally with the pressing part 138A, but in this embodiment, two coil springs CS are used so that the pressing part 138A can be moved with an appropriate force by the operator's hand. ing. By using two coil springs CS, the force of one coil spring CS is weakened compared to when one coil spring CS is used, thereby reducing the change over time in the spring force of the coil spring CS. I can do it. At the same time, it is possible to prevent the fourth frame body 130 from meandering or vibrating within the third frame body 120, and it is also possible to prevent the generation of noise that would be a nuisance when fishing. The pin PN1 has a length that projects from the side surface 124 of the third frame body 120, and is configured to engage and disengage from the recess 107 of the first frame body 102. That is, the fourth frame body 130 has a function of engaging and disengaging the pin PN1 from the recess 107 provided at the rear end of the first frame body 102 by moving the pressing portion 138A. The folded portion 136 is a portion that is folded inward from the side surface 134 along the X direction. The folded portion 136 constitutes only the end portion of the upper surface in the width direction of the fourth frame body 130, and does not have any other members forming the upper surface. That is, as shown in FIG. 4(B), the pressing part 138A is provided at a position overlapping with the intermediate opening 126A in a plan view, and presses itself inside the third frame body 120 by direct pressing of the operator's hand. It is configured to be movable along the direction of the guide hole 128.

As shown in FIG. 3B, the shaft holding member 140 is a member that holds the shaft portion SP of the power unit DBU, and is constructed by injection molding using aluminum as a main component. Specifically, the shaft holding member 140 includes a rotation side member 142, a shaft attachment member 144, and a handle 146, as shown in FIGS. 5(A) and 5(B). The rotating member 142 includes a mounting portion 142A that is rotatably supported by the rear end portion of the second frame body 110 and the rear end portion of the third frame body 120. A through hole that supports the third rotation shaft SA3 is provided at the upper end of the end portion 142AB of the attachment portion 142A. At the third rotation axis SA3, as shown in FIG. 6(D), the side surface 114 of the second frame body 110 is disposed adjacent to the outside of the mounting portion 142A via a resin washer PW. A retaining ring SR is disposed on the outside of the side surface 114 of the second frame body 110 via a metal washer MW, and a third rotation shaft SA3 is attached thereto. In addition, at the fourth rotation axis SA4 of the mounting portion 142A, the mounting portion 142A is adjacent to the outside of the side surface 124 of the third frame body 120 via the resin washer PW, as shown in FIG. 5(B). It is located. Note that a notch 142AA is provided at the lower end of the end 142AB. The direction of the shaft portion SP is perpendicular when the notch portion 142AA is in contact with the pin PN2. Further, the rotating member 142 includes an inner surface 142B that uniformly abuts about half of the circular cross-sectional shape of the shaft portion SP. Note that a male thread is formed at the tip of the rod portion 146B of the handle 146, and a female thread corresponding to the male thread of the rod portion 146B is provided at a corresponding portion of the rotation side member 142. Note that the end portion 142AB of the attachment portion 142A is configured to enter inside the side surface 114 of the second frame body 110, so that a step is provided and the outer shape is reduced.

The shaft attachment member 144 is a member that presses the shaft portion SP against the shaft holding member 140, as shown in FIG. 3(B). Like the rotating member 142, the shaft mounting member 144 includes an inner surface 144A that uniformly abuts about half of the circular cross-sectional shape of the shaft portion SP. The shaft attachment member 144 is rotatable relative to the rotation side member 142 around a rotation axis 144B, and the shaft portion SP is arranged in an open state, and is kept in a closed state by the handle 146, and the shaft portion SP is placed in an open state. can be retained. Note that the handle 146 includes a handle portion 146A and a rod portion 146B. The handle portion 146A is a portion directly held by the operator's hand, and the rod portion 146B is rotatably supported by the shaft attachment member 144. By rotating the handle portion 146A, the rod portion 146B rotates, and the rod portion 146B is screwed into the female threaded portion of the rotating member 142, thereby fixing the shaft portion SP.

Note that the diameter of the shaft portion SP of the power unit DBU often differs depending on the manufacturer and model. For this reason, in this embodiment, a plurality of semi-cylindrical collars corresponding to the diameter of the shaft part SP are prepared, and the collars are arranged between the shaft part SP to be held and the inner surfaces 142B and 144A, so that the shaft It is possible to accommodate a plurality of power units DBU whose portions SP have different diameters.

Next, the posture of each element of the power mount mechanism 100 from the locked closed state to the open state where the shaft part SP can be attached and detached will be explained using mainly FIGS. 7(A) to 7(E). do.

First, in the locked state of the power mount mechanism 100 shown in FIG. 7(A), it is possible to maintain the shaft portion SP vertically. At this time, the third frame body 120 is in a horizontal state (rotation angle of 0 degrees), and the pin PN1, which is regulated to move only in the X direction, moves into the recess 107 of the first frame body 102. It is in a state where it is fitted. Then, the bottom surface 122 of the third frame body 120 can come into contact with the folded portion 106 of the first frame body 102 . Furthermore, the notch 142AA of the shaft holding member 140 directly restricts the movement of the shaft holding member 140 by the pin PN2 provided on the third frame body 120. Therefore, in the locked state of the power mount mechanism 100 shown in FIG. 7(A), the power mount mechanism 100 can maintain a stable form without being deformed or damaged even when subjected to an extremely large force. be.

Next, the locked state is released, and the third frame body 120 is tilted (rotation angle of about 45 degrees) as shown in FIG. 7(B). At this time, although the length of the third frame body 120 is shorter than the length of the second frame body 110, the positions of the first rotation axis SA1 and the second rotation axis SA2 are different. Therefore, although the shaft holding member 140 rotates slightly with respect to the third frame body 120 in the opposite direction to the rotation direction of the third frame body 120, it rotates at an angle close to the rotation angle of the third frame body 120.

However, as shown in FIGS. 7(B) to (D), as the third frame body 120 is gradually tilted, the difference in the length of the second frame body 110 with respect to the length of the third frame body 120 increases. appears prominently. Therefore, the amount of rotation of the shaft holding member 140 relative to the third frame body 120 in the direction opposite to the rotation direction of the third frame body 120 increases. That is, compared to the change in the rotation angle of the third frame body 120, the rate of change in the rotation angle of the shaft holding member 140 in the rotation direction of the third frame body 120 gradually decreases.

Then, as shown in FIG. 7E, the third frame body 120 is finally rotated (inverted) by 180 degrees around the second rotation axis SA2, and at the same time the shaft holding member 140 is attached to the third frame body 120. On the other hand, the third frame body 120 is rotated 90 degrees in the opposite direction to the rotation direction. That is, when attaching and detaching the shaft part SP on the boat BT, the third frame body 120 rotates 180 degrees around the second rotation axis SA2, and the bottom surface 122 of the third frame body 120 is unfolded in a horizontal state, In addition, the shaft holding member 140 is rotated by 90 degrees (to the side opposite to the rotational direction of the third frame body 120 with respect to the third frame body 120). At this time, the third frame body 120 comes into contact with the buffer member DM (FIG. 4(B)) disposed on the folded portion 105 of the first frame body 102, and the side surface 124 of the third frame body 120 contacts the mounting portion 142A. (the broken line circle in FIG. 6(D)). For this reason, the deformed state (open state) of the power mount mechanism 100 shown in FIG. 7(E) can be maintained fairly stably.

In this embodiment, in particular, the fourth frame body 130 is provided at a position overlapping with the intermediate opening 126A (located at a position overlapping with the upper opening 112A) in plan view, so that it is not directly exposed to the operator's hand. It is configured to include a pressing portion 138A that can move itself along the direction of the guide hole 128 inside the third frame body 120 by pressing, and a pin PN1 that loosely fits into the guide hole 128 on both side surfaces 134. Then, the fourth frame body 130 engages and disengages the pin PN1 from the recess 107 provided at the rear end of the first frame body 102 by moving the pressing portion 138A. That is, even if there is no wire, it is possible to control the locked state of the first frame body 102 and the third frame body 120 by moving the pressing part 138A by direct pressure of the operator's hand. be.

In addition, in the conventional technology, in order to downsize the power mount mechanism, for example, the lengths of the first frame body and the second frame body described in this embodiment are shortened, and the first rotation axis SA1 etc. have changed their positions. In other words, if it is a conventional genuine product, when the shaft part SP of the power unit DBU is attached and detached, the third frame body described in this embodiment should rotate 180 degrees around the second rotation axis SA2. However, this was not possible with the modified product (for example, apart from the rotation angle of the shaft holding member, the rotation angle of the third frame body in the modified product was up to about the extent shown in Figure 7 (D). ).

In contrast, in the present embodiment, when the shaft part SP is attached and detached on the boat BT, the third frame body 120 rotates 180 degrees around the second rotation axis SA2, and the bottom surface 122 of the third frame body 120 rotates by 180 degrees. This configuration is such that it is unfolded in a horizontal state and the shaft holding member 140 is rotated by 90 degrees. That is, since the power mount mechanism 100 is attached to the base member BM in a horizontal state, the power unit DBU is normally arranged on the boat BT, that is, the shaft part SP of the power unit DBU is in a horizontal state. It is possible to attach and detach the power unit DBU to the power mount mechanism 100 without particularly tilting the power unit DBU. That is, it is possible to quickly mount the power unit DBU to the power mount mechanism 100.

In addition, in the conventional technology, genuine products were large in size and heavy, so in order to reduce weight, they were all made of aluminum material. However, because the modified product is forcibly shortened, it lacks rigidity and is more prone to deformation and damage than the original product.

On the other hand, in the present embodiment, in the power mount mechanism 100, the members that are particularly subjected to loads are made of stainless steel material, which has higher rigidity than aluminum material. That is, in this embodiment, the first frame body 102, the third frame body 120, and the fourth frame body 130 are mainly made of stainless steel, and the second frame body 110 and the shaft holding member 140 are mainly made of aluminum material. It is an ingredient. Therefore, it is possible to realize a power mount mechanism 100 that is smaller and lighter than the official product, and that is less likely to be deformed or damaged. Note that the present invention is not limited to this, and any material may be used for the power mount mechanism. For example, in addition to metal, a part of the power mount mechanism may be made of reinforced plastic.

Note that the boat BT is normally used on water where there is no shade from trees. That is, the environmental temperature in which the power mount mechanism 100 is used varies widely. Since the linear expansion coefficient of the aluminum material is larger than that of the stainless steel material, the aluminum material expands and contracts more than the stainless steel material due to temperature changes. In this embodiment, the second frame body 110 and the shaft holding member 140, which are mainly made of aluminum material, are different from the first frame body 102 and the third frame body 120, which are mainly made of stainless steel material, in the width direction (Y direction). , and arranged outside the fourth frame body 130. For this reason, the power mount mechanism can be designed by mainly considering the size change of the second frame body 110 and the shaft holding member 140 when the temperature drops below room temperature, so it is reliable even if the operating temperature range is wide. It is possible to easily realize a power mount mechanism 100 that can operate as follows. Note that the arrangement is not limited to this, and even if a plurality of materials are used, the placement locations do not necessarily have to be divided depending on the material type.

Furthermore, in this embodiment, a cushioning member DM made of rubber or the like is provided at the tip of the first frame body 102 that the third frame body 120 comes into contact with when the second frame body 110 rotates. Therefore, the impact of the collision between the first frame body 102 and the third frame body 120 that occurs each time the first frame body 102 and the third frame body 120 are attached or detached can be alleviated. That is, it is possible to prevent the occurrence of noise, an increase in looseness between members, occurrence of damage or deformation, and deterioration of aesthetic appearance due to peeling or deterioration of the surface paint. Note that the present invention is not limited to this, and the buffer member DM may be a metal leaf spring or the like. Of course, the buffer member DM may not be provided.

Further, in the present embodiment, the first frame body 102, the second frame body 110, the third frame body 120, and the shaft holding member 140 have mutually rotating portions, that is, the fourth rotation axis from the first rotation axis SA1. They are adjacent to each other on axis SA4 via resin washer PW. Therefore, it is possible to prevent noise caused by collision of the rotating parts with each other due to vibrations applied from the outside, and it is possible to enjoy fishing comfortably. Note that the present invention is not limited to this, and the resin washer PW may not be used in the first place.

Further, in the present embodiment, the first frame body 102, the second frame body 110, the third frame body 120, and the shaft holding member 140 have mutually rotating portions, that is, the fourth rotation axis from the first rotation axis SA1. In the shaft SA4, a retaining ring SR is used instead of a bolt and a nut. Therefore, even if the first frame body 102, second frame body 110, third frame body 120, and shaft holding member 140 are repeatedly operated, the gaps between the members do not change, so when using bolts and nuts, It is possible to prevent an increase in looseness due to loosening. Note that the present invention is not limited to this, and a configuration in which bolts and nuts are used from the first rotation axis SA1 to the fourth rotation axis SA4 may be used.

Therefore, according to the present embodiment, a power mount mechanism 100 is provided that is smaller and lighter than conventional genuine products, yet is capable of controlling the locked state of the posture of the power unit regardless of the presence or absence of wires, and is highly safe. It is possible to do so.

Although the present invention has been described with reference to the above embodiments, the present invention is not limited to the above embodiments. That is, it goes without saying that improvements and changes in design are possible without departing from the gist of the present invention.

For example, in the above embodiment, the boat BT is a rental boat and the outboard motor is used for fishing, but the present invention is not limited thereto. For example, an outboard motor does not have to be for fishing or used for a rental boat. Further, the boat BT does not have to have the shape shown in FIGS. 1(A) and 1(B), and the location where the outboard motor is attached does not have to be at the bow.

The present invention is particularly applicable to a power mount mechanism that holds a power unit retrofitted to a small boat.

100... Power mount mechanism 102... First frame body 103, 122, 132... Bottom surface 103A, 105, 106, 126, 136... Folded portion 104, 114, 124, 134... Side surface 107, 124B... Concave portion 110... Second frame body 112... Upper surface 112A... Upper opening 120... Third frame body 122A... Supporting part 126A... Intermediate opening 128... Guide hole 130... Fourth frame body 132A... Connecting part 138A... Pressing part 138B... Auxiliary hole 140... Shaft holding member 142...Rotating side member 142A...Mounting part 142AA...Notch part 142AB...End part 142B, 144A...Inner surface 144...Shaft mounting member 144B...Rotating shaft 146...Handle 146A...Handle part 146B...Rod part BM...Base member BT...Boat CP...Control unit CS...Coil spring DBU...Power unit DM...Buffer member MW...Metal washer PN1, PN2...Pin PP...Drive unit PW...Resin washer SA1...1st rotation axis SA2...2nd time Dynamic axis SA3...Third rotation axis SA4...Fourth rotation axis SP...Shaft part SR...Retaining ring

Claims (4)

Power that is attached to a base member provided horizontally at the end of the top surface of a boat, is capable of holding the shaft portion of a power unit that propels the boat, and is capable of rotating the shaft portion from a vertical position to a horizontal position. A mounting mechanism,
a first frame body attached to the base member;
a second frame body having an upper opening on the top surface and rotatably supported by a first rotation shaft provided at the tip of the first frame body;
an intermediate opening disposed between the first frame body and the second frame body at a position overlapping with the upper opening in plan view; and guide holes on both side surfaces; a third frame body rotatably supported by a second rotation shaft provided at a position closer to the center of the first frame body;
a pressing portion that is provided at a position overlapping with the intermediate opening in a plan view and that is capable of moving itself along the direction of the guide hole inside the third frame body by direct pressing of an operator's hand; a fourth frame body comprising lock pins that loosely fit into the guide holes on both sides, the lock pins being engaged and disengaged from a recess provided in a rear end of the first frame body by movement of the pressing part; ,
a shaft holding member rotatably supported by the rear end portion of the second frame body and the rear end portion of the third frame body and holding the shaft portion;
Equipped with
When attaching and detaching the shaft portion on the boat, the third frame body rotates 180 degrees around the second rotation axis, and the bottom surface of the third frame body is unfolded in a horizontal state, and A power mount mechanism characterized in that a shaft holding member is rotated 90 degrees. In claim 1,
A power mount mechanism characterized in that a buffer member is provided at the tip of the first frame body that the third frame body comes into contact with when the second frame body rotates. In claim 1 or 2,
The power mount mechanism is characterized in that the first frame body, the second frame body, the third frame body, and the shaft holding member are adjacent to each other with a resin washer interposed in their rotational portions. . In any one of claims 1 to 3,
The first frame body, the third frame body, and the fourth frame body are mainly made of stainless steel,
The second frame body and the shaft holding member are mainly made of aluminum material,
A power mount mechanism characterized in that the second frame body and the shaft holding member are arranged outside the first frame body, the third frame body, and the fourth frame body in the width direction.

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