A modern suspension damper, for example, a shock absorber or a suspension fork, including an inertia valve and a pressure-relief feature is disclosed. The pressure-relief feature includes a rotatable adjustment knob that allows the pressure-relief threshold to be externally adjusted by the rider “on-the-fly” and without the use of tools.

Solar tracker systems include a torque tube, a column supporting the torque tube, a solar panel connected to the torque tube, and a damper assembly. The damper assembly includes a first end pivotably connected to the torque tube and a second end pivotably connected to the column. The damper assembly further includes an outer shell, a piston within and moveable relative to the outer shell, a first chamber wall and a second chamber wall within the outer shell at least partially defining a chamber, and a valve within the chamber. The valve includes a first axial end defining a slot and is biased to a first position within the chamber in which the first axial end is spaced from the first chamber wall. The valve is moveable within the chamber from the first position to a second position to passively change a flow resistance of the damper assembly.

A safety valve includes a first part and a second part. The first part has a main chamber, and a sub chamber is defined between the first and second parts. A path split unit includes a base with a recess which communicates with the sub chamber. The base has a main path communicating with the main chamber, and a sub-path unit communicating with a sub chamber. One end of the sub-path unit communicates with the main path. A safety path unit communicates between the sub chamber and the recess and the sub-path unit by a communication path. A switch unit is received in the recess and controls the communication between the main path and the sub-path unit. When a severe and sudden impact is transferred to the suspension device, a portion of liquid in the main path flows into the sub chamber to provide a level of buffering feature.

A flow adjustment and oil path separation structure of a shock absorber includes inner and outer tubes sheathed and linearly contracted and extended with respect to each other and having a base tube module installed in the inner tube and including a first component and a second component sheathed on each other. A primary oil chamber is formed in the first component. A secondary oil chamber is formed between the first and second components. An oil path separation module includes an oil path separator seat with an ON/OFF installing slot, a primary channel, a secondary channel group, a first adjusting hole and a communication channel. A first adjustment module is installed at the first adjusting hole for adjusting the amount of hydraulic oil in the first adjusting hole. An ON/OFF switch module is installed in the ON/OFF installing slot for switching a flow ON/OFF status of the secondary channel group.

A flow adjustment and oil path separation structure of a shock absorber includes inner and outer tubes sheathed and linearly contracted and extended with respect to each other and having a base tube module installed in the inner tube and including a first component and a second component sheathed on each other. A primary oil chamber is formed in the first component. A secondary oil chamber is formed between the first and second components. An oil path separation module includes an oil path separator seat with an ON/OFF installing slot, a primary channel, a secondary channel group, a first adjusting hole and a communication channel. A first adjustment module is installed at the first adjusting hole for adjusting the amount of hydraulic oil in the first adjusting hole. An ON/OFF switch module is installed in the ON/OFF installing slot for switching a flow ON/OFF status of the secondary channel group.

A shock absorber includes: a communication passage configured to cause a working fluid chamber formed in a cylinder to communicate with a reservoir for reserving a working fluid therein; a damping force generating mechanism configured to apply resistance to the working fluid passing through the communication passage; a low-speed compression-side damping adjuster configured to change a damping force when a stroke speed is in a low-speed range during compression; a high-speed compression-side damping adjuster configured to change the damping force when the stroke speed is in a high-speed range, the high-speed range representing higher speed than the low-speed range during compression; and an extension-side damping adjuster configured to change the damping force during extension. The low-speed compression-side damping adjuster, the high-speed compression-side damping adjuster, and the extension-side damping adjuster are attached to a tank side of the cylinder.

A shock absorber includes: a communication passage configured to cause a working fluid chamber formed in a cylinder to communicate with a reservoir for reserving a working fluid therein; a damping force generating mechanism configured to apply resistance to the working fluid passing through the communication passage; a low-speed compression-side damping adjuster configured to change a damping force when a stroke speed is in a low-speed range during compression; a high-speed compression-side damping adjuster configured to change the damping force when the stroke speed is in a high-speed range, the high-speed range representing higher speed than the low-speed range during compression; and an extension-side damping adjuster configured to change the damping force during extension. The low-speed compression-side damping adjuster, the high-speed compression-side damping adjuster, and the extension-side damping adjuster are attached to a tank side of the cylinder.

[Problem] To provide a rotary damper wherein damping torque generated by rotation can be easily adjusted using a simple configuration. [Solution] A rotary damper 1 limits the movement of viscous fluid contained in a circular cylinder chamber 111, thereby generating damping torque against applied rotational force. This rotary damper 1 is configured such that: a lid 15 is screwed into a case 11; and the gap g1 between the lower surface 153 of the lid 15 and the upper surface 119 of a partition section 115 and the gap g2 between the lower surface 153 of the lid 15 and the upper surface 129 of a vane 122 can be adjusted by adjusting the amount of screwing of the lid 15 into the case 11. This means that adjusting the amount of movement of viscous fluid through the gaps g1, g2 can adjust damping torque generated by rotation.

[Problem] To provide a rotary damper wherein damping torque generated by rotation can be easily adjusted using a simple configuration. [Solution] A rotary damper 1 limits the movement of viscous fluid contained in a circular cylinder chamber 111, thereby generating damping torque against applied rotational force. This rotary damper 1 is configured such that: a lid 15 is screwed into a case 11; and the gap g1 between the lower surface 153 of the lid 15 and the upper surface 119 of a partition section 115 and the gap g2 between the lower surface 153 of the lid 15 and the upper surface 129 of a vane 122 can be adjusted by adjusting the amount of screwing of the lid 15 into the case 11. This means that adjusting the amount of movement of viscous fluid through the gaps g1, g2 can adjust damping torque generated by rotation.

A damper apparatus includes an adjusting bolt including a head part rotatably stored in an adjusting bolt storage part formed in a base part, and a male thread part including a tip end formed in a male thread shape. An adjusting member includes: a female thread part, which is a part in a female thread shape fastened to the male thread part of the adjusting bolt and movably provided along an axis line of the adjusting bolt; a tapered surface part with which the tip end of a push rod comes into contact and formed in a tapered shape with respect to the axis line of the adjusting bolt; and wall parts rising from both ends of the tapered surface part with reference to the circumferential direction of the adjusting bolt, and interposing the push rod therebetween.