CN1280867A - Non-vibration seesaw with variable force arms - Google Patents

Abstract

A non-vibration seesaw with variable force arm features that on the basis of existing supporter, balancing plate and rotary axle, such units as guide track, movable chairs, handles, safety baffles, clamping springs and counterweight for regulating balance are additionally set up. Moving the chairs alternatively can vary the force arms to play the seesaw without use of pushing up with feet. Said damping spring can reduce the impact on contacting the ground.

Description

Non-vibration seesaw with variable force arms

The present invention is a kind of recreation body-building device.Especially a kind of non-vibration seesaw with variable force arms.

Seesaw is the toy that people just like since ancient times.Seesaw originally mainly is made up of flat board, support, rotating shaft three parts, and player's branch is sitting in balance plate two, the upwards active force that relies on both sides to produce with castor stream with pedaling, and both sides wave in the wind up and down in turn.Because its is simple and easy and elegant, seesaw is subjected to especially liking of children of people deeply.People know: the recreation seesaw needs balance, when the people's weight that is sitting in seesaw two differs big, and seesaw two imbalance, seesaw just can not swung.In addition, when sinking of seesaw is very fast, also big to the impact of human body; And present seesaw mainly is used as power by the leg thump, also do not have a kind of seesaw to have and regulates two balance and slow down percussion mechanism.

Purpose of the present invention just provides a kind of equilibrate counterweight shock-absorbing spring and movable seat of having, and can make the seesaw of driving force by changing arm of force length, and it is a kind of non-vibration seesaw with variable force arms worthy of the name.

The objective of the invention is to adopt following proposal to realize: on the balance plate of seesaw, guide rail is housed, at the middle part of balance plate movably equilibrate counterweight is housed, a chair that can move along guide rail is respectively adorned at two, has belt to tie up to the person on the chair and goes up and guarantee safety.Safe plate washer and shock-absorbing spring are housed at balance plate two, and handle is installed in the appropriate location on the balance plate.During recreation, first shifting balance balancing weight makes balance plate two balance; Suitably move to the second end as the heavier then counterweight block of first end people, vice versa; Then, the player pushes away or handle, make movable seat away from or near handle, changed the arm of force of seat, thereby changed the moment on wheel shaft both sides to wheel shaft, make balance plate depart from balance, begin to swing.The player pushes away continuously, handle, but just the driven equilibrium plate is swung continuously.Be contained in the shock-absorbing spring at balance plate two, when pressurized, gradually reduce, accumulation of energy, and when balance plate pops up, release energy; Reach the purpose of non-vibration seesaw with variable force arms.

Owing to adopt such scheme, balance that can shifting balance balancing weight adjustment plate, the shock-absorbing spring can be eliminated the balance plate impact of contacting to earth, movable seat and seesaw is moved up and down, not only interesting but also body-building, overall structure is simple.

The present invention is further described below in conjunction with drawings and Examples:

Fig. 1 is the non-vibration seesaw with variable force arms front view

Among the figure 1, balance plate 2, guide rail 3, a safety screen 4, a movable seat 5, a handle 6, equilibrate counterweight 7, support 8, rotating shaft 9, b handle 10, the movable seat 11 of b, b safety screen 12, shock-absorbing spring

Fig. 1, in, balance plate (1) is installed on the support (7) by rotating shaft (8), and around the shaft (8) swing; Equilibrate counterweight (6) is placed on the balance plate (1), and removable; Guide rail (2) is installed, shock-absorbing spring (12), a safety screen (3), b safety screen (11), a shake hands (5), b shake hands (9), a movable seat (4) and b movable seat (1O) on balance plate (1).After the player sat into a movable seat (4) and b movable seat (10), shifting balance balancing weight (6) made balance plate (1) balance; Then, the player pushes away a handle (5), the movable seat of a (4) is moved to the left, increase the arm of force of the movable seat of a (4) to rotating shaft (8), another player draws b handle (9) simultaneously, and the movable seat of b (10) moves right, reduced the arm of force of the movable seat of b (10) to rotating shaft (8), both motions have changed the moment that acts on the balance plate (1), the original balance of the plate that disequilibrates (1), and balance plate (1) is tilted to the left; The player does push pull maneuver continuously, and balance plate (1) swings back and forth.The accumulation of energy that gradually reduces during shock-absorbing spring (12) pressurized at balance plate (1) two, the impact of contacting to earth of cancellation balance plate (1), and when balance plate (1) beginning counter motion, stretching, extension is upspring, and discharges accumulation of energy.

Claims (2)

1, a kind of non-vibration seesaw with variable force arms, support, rotating shaft, balance plate is installed successively, it is characterized in that: at the balance plate upper mounting rail, shock-absorbing spring, movable seat, equilibrate counterweight, handle and safety screen.

2, according to claim 1, it is characterized in that: movable seat can move along guide rail.