A system of mitigating force in a mechanical system, the system comprising a frame member, a first rail connected to the frame member, a second rail connected to the frame member and extending along the frame member in parallel to the first rail, an assembly movably engaging the first and second rails, and a first bracket located between the first and second rails, with at least one first bracket attachment secured to the frame member, the first bracket sharing an upper edge with a lower edge of the first rail, such that a downward force applied on the first rail is distributed to the first bracket and the frame member via the at least one first bracket attachment.

A system of mitigating force in a mechanical system, the system comprising a frame member, a first rail connected to the frame member, a second rail connected to the frame member and extending along the frame member in parallel to the first rail, an assembly movably engaging the first and second rails, and a first bracket located between the first and second rails, with at least one first bracket attachment secured to the frame member, the first bracket sharing an upper edge with a lower edge of the first rail, such that a downward force applied on the first rail is distributed to the first bracket and the frame member via the at least one first bracket attachment.

Provided is a seal structure of a belt cover for an internal combustion engine having excellent sealability on the composite mating surfaces of an upper cover, a lower cover, and an inside cover constituting the belt cover. The seal structure of the belt cover for the internal combustion engine according to the present invention includes: an inside cover member disposed on a side of the body of the internal combustion engine; and an outside cover member disposed on a side opposite to the body of the internal combustion engine, and accommodating a timing belt TB in a liquid-tight state together with the inside cover member. The outside cover member is divided into an upper outside cover 4 and a lower outside cover 5. A first seal is formed between the upper outside cover 4 and the inside cover member. A second seal is formed between the upper outside cover 4 and the lower outside cover 5. At a boundary between the first seal and the second seal, a seating portion 36 on which a lower end 32a of a seal member 32 of the first seal is seated is formed by an end upper surface of a male portion 33 of the lower outside cover 5 and an end upper surface of a projecting portion 35 of the inside cover member flush with the end upper surface of the male portion 33.

Provided is a seal structure of a belt cover for an internal combustion engine having excellent sealability on the composite mating surfaces of an upper cover, a lower cover, and an inside cover constituting the belt cover. The seal structure of the belt cover for the internal combustion engine according to the present invention includes: an inside cover member disposed on a side of the body of the internal combustion engine; and an outside cover member disposed on a side opposite to the body of the internal combustion engine, and accommodating a timing belt TB in a liquid-tight state together with the inside cover member. The outside cover member is divided into an upper outside cover 4 and a lower outside cover 5. A first seal is formed between the upper outside cover 4 and the inside cover member. A second seal is formed between the upper outside cover 4 and the lower outside cover 5. At a boundary between the first seal and the second seal, a seating portion 36 on which a lower end 32a of a seal member 32 of the first seal is seated is formed by an end upper surface of a male portion 33 of the lower outside cover 5 and an end upper surface of a projecting portion 35 of the inside cover member flush with the end upper surface of the male portion 33.

A cylindrical component has a groove bottom (4) that extends approximately parallel to the course of the unworked surface of the component, and has a side wall (6, 7) inclined at an angle () of less than 90 to the groove bottom (4). To increase the adhesion between a coating to be applied to the surface of the component an upper region of the side wall (6, 7) is adjoined by an oblique surface (8, 9) at an angle () of greater than 90 to the side wall.

A cylindrical component has a groove bottom (4) that extends approximately parallel to the course of the unworked surface of the component, and has a side wall (6, 7) inclined at an angle () of less than 90 to the groove bottom (4). To increase the adhesion between a coating to be applied to the surface of the component an upper region of the side wall (6, 7) is adjoined by an oblique surface (8, 9) at an angle () of greater than 90 to the side wall.

Provided is a seal structure of a belt cover for an internal combustion engine having excellent sealability on the composite mating surfaces of an upper cover, a lower cover, and an inside cover constituting the belt cover. The seal structure of the belt cover for the internal combustion engine according to the present invention includes: an inside cover member disposed on a side of the body of the internal combustion engine; and an outside cover member disposed on a side opposite to the body of the internal combustion engine, and accommodating a timing belt TB in a liquid-tight state together with the inside cover member. The outside cover member is divided into an upper outside cover 4 and a lower outside cover 5. A first seal is formed between the upper outside cover 4 and the inside cover member. A second seal is formed between the upper outside cover 4 and the lower outside cover 5. At a boundary between the first seal and the second seal, a seating portion 36 on which a lower end 32a of a seal member 32 of the first seal is seated is formed by an end upper surface of a male portion 33 of the lower outside cover 5 and an end upper surface of a projecting portion 35 of the inside cover member flush with the end upper surface of the male portion 33.

Provided is a seal structure of a belt cover for an internal combustion engine having excellent sealability on the composite mating surfaces of an upper cover, a lower cover, and an inside cover constituting the belt cover. The seal structure of the belt cover for the internal combustion engine according to the present invention includes: an inside cover member disposed on a side of the body of the internal combustion engine; and an outside cover member disposed on a side opposite to the body of the internal combustion engine, and accommodating a timing belt TB in a liquid-tight state together with the inside cover member. The outside cover member is divided into an upper outside cover 4 and a lower outside cover 5. A first seal is formed between the upper outside cover 4 and the inside cover member. A second seal is formed between the upper outside cover 4 and the lower outside cover 5. At a boundary between the first seal and the second seal, a seating portion 36 on which a lower end 32a of a seal member 32 of the first seal is seated is formed by an end upper surface of a male portion 33 of the lower outside cover 5 and an end upper surface of a projecting portion 35 of the inside cover member flush with the end upper surface of the male portion 33.

A belt cover for an internal combustion engine is provided, and the belt cover efficiently discharges water from a drain hole and has good sealing performance. A water pump 30, which is disposed on one side surface of a cylinder block CB, and which includes a drain hole 35, an oil pump case OP, which covers the inside of a timing belt TB, and a lower cover 9, which covers the outside of the timing belt TB are included. The oil pump case OP and the lower cover 9 are fixed with each other through a seal member 40, and constitute a lower case 90. A guide rib 91 and a discharge port 92 are formed inside the lower case 90, the guide rib 91 being for guiding drained water from the drain hole 35, while separating from the timing belt TB, the discharge port 92 being for discharging the drained water from the lower case 90 at a bottom end of the lower case 90, and the drained water from the drain hole 35 is guided by the guide rib 91 toward the discharge port 92.

Provided is a belt cover of an internal combustion engine having ease of attachment and detachment and sealability.

A belt cover structure for an internal combustion engine includes an oil pump case OP and a lower cover 9 that cover a timing belt TB, and a side mount bracket 8 that is adjacent to an upper side of the lower cover 9 and is held by a cylinder block CB. Mating surfaces 96c and 86c that are aligned with each other are respectively formed on the lower cover 9 and the side mount bracket 8. A lower seal member 41 is disposed on the mating surface 96c, and the mating surface 86c is configured to cover the mating surface 96c from the outside. The lower cover 9 and the side mount bracket 8 are fixed in a state where the mating surface 86c of the side mount bracket 8 is pressed against the mating surface 96c of the lower cover 9 via the seal member 41.