Tensioner
阅读说明:本技术 张紧器 (Tensioner ) 是由 亚雅·何杰特 L·艾尔萨斯 于 2018-12-27 设计创作,主要内容包括:一种张紧器,包括:基部;枢转臂,该枢转臂与基部可枢转地接合;带轮,该带轮轴颈连接在枢转臂上;扭转弹簧,该扭转弹簧接合在基部和枢转臂之间,该扭转弹簧包括平面柱形部分,该平面柱形部分成一体地形成在扭转弹簧的端部内;以及阻尼部件,该阻尼部件与平面柱形部分接合,该阻尼部件与基部摩擦接合,并沿展开方向加载。(A tensioner, comprising: a base; a pivot arm pivotally engaged with the base; a pulley journalled to the pivot arm; a torsion spring engaged between the base and the pivot arm, the torsion spring including a planar cylindrical portion integrally formed within an end of the torsion spring; and a damping member engaged with the planar cylindrical portion, the damping member frictionally engaged with the base and loaded in the deployment direction.)
1. A tensioner, comprising:
a base;
a pivot arm pivotably engaged with the base;
a pulley journalled on a pivot arm;
a torsion spring engaged between the base and a pivot arm for biasing the pivot arm;
the torsion spring includes a flat cylindrical portion integrally formed within an end portion of the torsion spring; and
a damping member engaged with the flat cylindrical portion, the damping member damping oscillatory motion of the pivot arm.
2. The tensioner as in claim 1, wherein: the flat cylindrical portion includes a rib for fixing the damping member.
3. The tensioner as in claim 1, wherein: the torsion spring is loaded in the unwinding direction.
4. The tensioner as in claim 1, wherein: the flat cylindrical portion has a center of curvature about the pivot axis a-a of the pivot arm.
5. The tensioner as in claim 1, wherein: the damping member is frictionally engaged with the base.
6. The tensioner as in claim 1, wherein: the damping member is overmolded on the flat cylindrical portion.
7. The tensioner as in claim 1, further comprising: a detachable component disposed between the base and the pivot arm.
8. A tensioner, comprising:
a base;
a pivot arm pivotally engaged with the base;
a pulley journalled to the pivot arm;
a detachable component disposed between the base and the pivot arm;
a torsion spring engaged between the base and the pivot arm for biasing the pivot arm, the torsion spring loaded in the unwinding direction and having an arcuate flat end; and
a damping member integrally secured to the flat end of the torsion spring, the damping member frictionally engaging the base and damping oscillatory motion of the pivot arm.
Technical Field
The present invention relates to a tensioner, and more particularly, to a tensioner having a torsion spring including a planar cylindrical portion integrally formed in an end of the torsion spring.
Background
Belt tensioners are used to apply a load on a belt. The belt load prevents the belt from slipping on the one or more conveyor pulleys during operation. Typically, belts are used in engine applications to drive various accessories connected to the engine. For example, an air conditioning compressor and an alternator are two accessories that may be driven by a belt drive system.
The belt tensioner includes a pulley journaled with the arm. A spring is connected between the arm and the base. The spring may also engage the damping mechanism. The damping mechanism includes friction surfaces in contact with each other. The damping mechanism damps oscillatory motion of the arm due to operation of the belt drive. This in turn increases the life expectancy of the belt.
Disclosure of Invention
The primary aspect of the present invention is to provide a tensioner having a torsion spring including a planar cylindrical portion integrally formed in an end of the torsion spring.
Other aspects of the invention will be pointed out or made obvious by the following description of the invention and the accompanying drawings.
The invention comprises a tensioner comprising: a base; a pivot arm pivotally engaged with the base; a pulley journalled to the pivot arm; a torsion spring engaged between the base and the pivot arm, the torsion spring including a planar cylindrical portion integrally formed within an end of the torsion spring; and a damping member engaged with the planar cylindrical portion, the damping member frictionally engaged with the base and loaded in the deployment direction.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a perspective view of a tensioner.
Fig. 2 is a perspective view of a spring and damper.
Fig. 3 is a perspective view of a spring and damper.
Fig. 4 is a perspective view of the spring.
Fig. 5 is an exploded view of the tensioner.
Fig. 6 is an exploded perspective view of the tensioner.
Detailed Description
Fig. 1 is a perspective view of a tensioner.
Fig. 2 is a perspective view of a spring and damper. The
Fig. 3 is a perspective view of a spring and damper. The section 44 enables the
The end 47 of the
Fig. 4 is a perspective view of the spring. The section 44 comprises a rib 45, which rib 45 provides an embossment to the surface of the section 44. The ribs 45 firmly secure the
Fig. 5 is an exploded view of the tensioner. Pulley 30 is journaled to
Fig. 6 is an exploded perspective view of the tensioner. The damping
The
A tensioner comprising: a base; a pivot arm pivotally engaged with the base; a pulley journalled to the pivot arm; a detachable component located between the base and the pivot arm; a torsion spring engaged between the base and the pivot arm for biasing the pivot arm, the torsion spring loaded in a deployment direction; and a damping member integrally fixed to the flat end portion of the torsion spring, the damping member engaging with the base and damping an oscillating motion of the pivot arm.
Although forms of the invention have been described herein, it will be obvious to those skilled in the art that variations may be made in the construction and relation of parts and method without departing from the spirit and scope of the invention described herein.
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