Toilet seat lifting device

Abstract

The invention relates to a closestool lifting device, which is characterized in that: the bearing part on the right side of a movable element (9) is contacted with the whole circle with respect to the guide spindle on the right side, while the bearing part on the left side (520) comprises the upper section of a cylindrical or an elliptical through a hole on the left (521) major axis towards left-right, and is in a contactable separated state with respect to a second guide spindle (42) along the transverse direction. A projection (525) forms at the lower end part of a side of the bearing part on the left side (520) on the back of a left sliding block (52) along the transverse direction, and a vertical plane is formed by a vertical plane (22) on a fixed plate (2), the vertical plane is undertaking the projection (525) while the lower end of the movable element (9) is inclined to the rear. Therefore, the closestool lifting device capable of realizing the smooth lifting of the closestool unit can be provided even if the precision of the guide spindle and the bearing is not high.

Description

technical field [0001] The invention relates to a toilet seat lifting device for a toilet seat of a flush toilet. Background technique [0002] In the flush toilet, the toilet seat and the toilet cover rotate around the inner side to assume a flat posture and a standing posture. Therefore, when cleaning the inner side above the toilet seat body, there is only a very small gap between the toilet seat body and the toilet seat, and people cannot enter this part if they want to clean it. Therefore, there has been proposed a toilet seat raising and lowering device capable of manually placing the toilet seat unit in a floating state from the toilet seat body (for example, refer to Patent Document 1). [0003] [Patent Document 1] Japanese Patent Laid-Open No. 8-177104 [0004] However, in the structure in which the toilet seat unit is manually lifted like the conventional toilet seat lifter, there is a problem that people feel a psychological hindrance when lifting the dirty toil...

AI Technical Summary

Problems solved by technology

[0008] In the traditional toilet seat lifting device, since both sides of the two sets of guide parts composed of the guide shaft and the bearing hole are composed of round rods and straight holes, for example, the movable mechanism is caused by standing up or lying down on the toilet seat or toilet cover. When the position of the center of gravity is shifted and the bearing hole is subjected to torque in the front, rear, left, and right directions, there is a problem that it is easy to get caught between the guide shaft and the bearing hole.

[0009] Although this problem can be solved by improving the parallelism, size, and position accuracy of the guide shaft and the bearing hole in the assembly process of each part, but if this measure is adopted, there is a problem of cost increase.

[0010] On the other hand, in order to eliminate the phenomenon of being caught, if the gap between the guide shaft and the bearing hole is set to be large, the balance of the load applied to the two sets of guide parts will be greatly impaired. In the case of an elevating movable mechanism, there is a problem that a large and expensive electric motor capable of generating a large torque margin must be arranged.

There is also a problem that dislocation occurs on the movable mechanism, and the gear set that transmits the driving force of the motor is disengaged from the meshing of the movable member side.

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