CN207024490U - Multi function treadmill - Google Patents

Abstract

The utility model provides a kind of multi function treadmill, including：Running platform, closed air bag, tight rise part and pressure adjustment equipment.Wherein, running platform is run place by cycle rotation analog subscriber；Closed air bag wraps up running platform, and closed air bag offers the opening that closed air bag is stretched into for human leg in running platform top position；The tight part that rises is arranged on the opening of closed air bag, by extruding with human contact portion so that closure of openings；It is intracapsular that pressure adjustment equipment at least part structure is located at closed parent, by compressing the atmospheric density in closed air bag, the atmospheric pressure in closed air bag is more than ambient atmosphere pressure.Closed air bag and internal pressure have born part human bady gravitational, and pressure during running for human leg reduces, and during user's long-time road-work, will not also cause leg muscle hyperplasia, can obtain liking and approving for user.

Description

Multi function treadmill

Technical field

The present invention relates to field of exercise equipment, and specifically, the present invention relates to a kind of multi function treadmill.

Background technology

A kind of treadmill body-building apparatus common as family and gymnasium, with its science, conveniently, effectively, be applicable crowd The features such as wide, is favored by people deeply, and the optimal selection of family fitness equipment, avoid people outdoor sport because weather, The unfavorable factors such as environment also reduce the possibility that athletic injury occurs to the physical effects of sporter.

In the prior art, when user uses treadmill, human body weight acts on human leg, and therefore, user can not enter The prolonged road-work of row, especially for for most of bodily form overweight peoples, overweight body burden makes it not carry out Or road-work can not be carried out for a long time, therefore treadmill movement effects and unobvious for overweight people, for liking beauty For scholar, body weight pressure to be born for a long time and carries out road-work, can make leg muscle hyperplasia, shank position can produce muscle projection, Influenceing aesthetic feeling, therefore treadmill Consumer's Experience of the prior art is poor.

The content of the invention

The primary and foremost purpose of the present invention is intended to can at least solve one of above-mentioned technological deficiency, there is provided one kind can mitigate user Body weight burden treadmill, can make alleviation user run during leg burden.

Based on above-mentioned purpose, the present invention adopts the following technical scheme that：

The present invention provides a kind of multi function treadmill, including：

Running platform, the running platform are run place by cycle rotation analog subscriber；

Closed air bag, the closed air bag wrap up the running platform, and the closed air bag is in the running platform top position Offer the opening that the closed air bag is stretched into for human leg；

The tight part that rises, the tight part that rises are arranged on the opening of the closed air bag, by extruding with human contact portion so that The closure of openings；

Pressure adjustment equipment, it is intracapsular that pressure adjustment equipment at least part structure is located at the closed parent, passes through compression Atmospheric density in the closed air bag, the atmospheric pressure in the closed air bag is set to be more than ambient atmosphere pressure.

In one of embodiment, the tight part that rises includes air bag and the first inflator pump, and the air bag is set In the opening, first air pump is connected with the air bag by pipeline, and first air pump passes through described in regulation Pressure adjustment effect in air bag is in the extruding force in human contact portion.

In one of embodiment, the pressure adjustment equipment includes the second inflator pump and Non-return air valve, the check valve It is arranged in the closed air bag, second inflator pump is connected with the check valve.

In one of embodiment, the treadmill also includes：

Ring closes support, and the ring closes support vertical and is arranged in the running platform, and the ring closes support and the platform of running An environmental simulation space at least closed in one direction is formed in the range of user runs；

Environment simulator, the environment simulator is arranged on the running platform and/or the ring is closed on support, described Environment simulator is used to control to adjust at least one in the environmental simulation space according to default ambient parameter or user instruction Ambient parameter, the environment so that the environmental simulation space true road surface of reproduction is run.

In one of embodiment, the environment simulator includes：Display, the display is adjustable to be arranged on The ring is closed on support, and the display is located in user's vision range, the scene image run for showing user in place.

In one of embodiment, the environment simulator also includes：Virtual Realization device, the Virtual Realization device Communicate and connect with the display, for showing the scene image that user runs in place to user's solid.

In one of embodiment, the environment simulator also includes：Several bladeless fans, the bladeless fan are equal It is arranged on the ring to close on support, the bladeless fan is used to adjust air-flow direction and speed in the environmental simulation space Degree.

In one of embodiment, several described bladeless fans are closed support in the ring and are distributed in a ring, the no leaf The air port of fan is linearly oppositely arranged with next bladeless fan adjacent in the clockwise direction, so that the environmental simulation is empty Interior formation wind cycle natural.

In one of embodiment, the environment simulator also includes：Luminescent screen, the luminescent screen are arranged on the ring Close at the top of stent inner surface, the luminescent screen is used to adjust the intensity of illumination in the environmental simulation space, so that the environment Simulate illumination brightness and intensity that space intensity of illumination reappears true road surface.

In one of embodiment, the environment simulator also includes：Ultrasonic ultrasonic delay line memory, the ultrasonic ultrasonic delay line memory The ring is arranged on to close on stent inner surface, the ultrasonic ultrasonic delay line memory user adjust humidity in the environmental simulation space and Temperature.

In one of embodiment, the multi function treadmill, which also includes the multi function treadmill machine, also to be included：Leg Massager, the leg massor are arranged on ring and closed in support, and below the display；

The leg massor includes：The massage groove of anthropomorphic body legs curve, the massage groove is interior to be provided with according to application electricity Buckling and with different vibration frequencies vibrator.

In one of embodiment, the multi function treadmill also includes：U-shaped handle and baffle plate, the U-shaped handle are located at Below the screen, openend user oriented, described baffle plate one end is connected to described U-shaped handle one end, the gear by rotating shaft The other end of plate snaps connection with the U-shaped handle, when the baffle plate snaps connection with the U-shaped handle, by the U-shaped handle Opening closure, stretches into leg in the leg massor so that human body is rested on the baffle plate.

In one of embodiment, the running platform includes：Treadmill belt and road surface adjustable plate, the road surface adjustable plate are set In the lower section of the treadmill belt, the road surface adjustable plate is provided with adjustable and retractable post, discrete point of the adjustable and retractable post Cloth is below the treadmill belt, for adjusting the degree of convexity on the surface of the treadmill belt at position, so that the running Platform simulates the bump degree on different running road surfaces.

Multi function treadmill in the embodiment of the present invention, by the way that running platform is arranged in closed air bag, closed air bag is set There is the opening entered for human body, opening is provided with the tight part that rises, and the part that tightly rises enters user closed by extruding human body contact portion Air bag rear enclosed opening, now closed air bag completion is closed, adjusts the pressure in closed air bag using pressure regulator, makes gas The pressure in intracapsular portion is more than air bag external pressure, and now a human bady gravitational part is offset by air bag, and another part is made Offset used in human leg's atmospheric pressure, therefore, the gravity born by human leg greatly reduces, the user leg during running Reduction of Students' Study Load, can make fat user also to be taken exercise by running for a long time, because pressure when running for human leg subtracts It is small, during user's long-time road-work, leg muscle hyperplasia will not be also caused, liking and approving for user can be obtained.

The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become from the following description Obtain substantially, or recognized by the practice of the present invention.

Brief description of the drawings

Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments Substantially and it is readily appreciated that, wherein：

Fig. 1 is multi function treadmill basic structure schematic diagram provided in an embodiment of the present invention；

Fig. 2 is a kind of overall structure diagram of multi function treadmill provided in an embodiment of the present invention；

Fig. 3 is the structural representation of the multi function treadmill with simulation natural lighting function provided in an embodiment of the present invention Figure；

Fig. 4 is the structural representation of the multi function treadmill with adjustment humiture function provided in an embodiment of the present invention；

Fig. 5 is the structural representation for the multi function treadmill that the embodiment of the present invention has massage functions.

Embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.

Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges Diction " comprising " refer to the feature, integer, step, operation, element and/or component be present, but it is not excluded that in the presence of or addition One or more other features, integer, step, operation, element, component and/or their groups.It should be understood that when we claim member Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or there may also be Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or wireless coupling.It is used herein to arrange Taking leave "and/or" includes whole or any cell and all combinations of one or more associated list items.

Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific terminology), there is the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also Understand, those terms defined in such as general dictionary, it should be understood that have with the context of prior art The consistent meaning of meaning, and unless by specific definitions as here, idealization or the implication of overly formal otherwise will not be used To explain.

Referring to Fig. 1, Fig. 1 is the present embodiment basic structure schematic diagram.

As shown in figure 1, a kind of multi function treadmill, including：Running platform 101, closed air bag 110, tight rise part 112 and pressure Adjustment equipment (not shown).Wherein, running platform 101 is run place by cycle rotation analog subscriber；The closed parcel of air bag 110 is run Platform 101 is walked, closed air bag 110 offers in the top position of running platform 101 and stretches into opening for closed air bag 110 for human leg Mouthful；The tight part 112 that rises is arranged on the opening of closed air bag 110, by extruding with human contact portion so that closure of openings；Pressure is adjusted It is intracapsular that section equipment at least part structure is located at closed parent, by compressing the atmospheric density in closed air bag 110, makes closed air bag Atmospheric pressure in 110 is more than ambient atmosphere pressure.

Multi function treadmill in above-described embodiment, by the way that running platform 101 is arranged in closed air bag 110, closed gas Capsule 110 is provided with the opening entered for human body, and opening is provided with the tight part 112 that rises, the part 112 that tightly rises by extruding human body contact portion, User is set to enter the closed rear enclosed opening of air bag 110, now closed air bag 110 is completed closed, is adjusted using pressure regulator Pressure in closed air bag 110, the pressure of inside air bag is set to be more than air bag external pressure, now a human bady gravitational part is pacified Full air bag is offset, and another part is applied offsets in human leg's atmospheric pressure, and therefore, the gravity born by human leg subtracts significantly Small, user leg is lightened the burden during running, and fat user can be made also to be taken exercise by running for a long time, due to running When reduce for the pressure of human leg, during user's long-time road-work, will not also cause leg muscle hyperplasia, can obtain User's likes and approves.

Running platform 101, running platform 101 are run place by cycle rotation analog subscriber, and the mechanical treadmill of early stage is to lean on Sole friction artificially drives machine run, and the defects of its design principle is doomed its requirement for being difficult to meet aerobic exercise, together When gait not enough cause muscular movement uncoordinated naturally, feel more stiff and stiff.By contrast, develop in recent years The treadmill come is liked due to more meeting the physilogical characteristics of aerobic exercise by people, gradually comes into huge numbers of families, As the part of Modern Family's fashionable life.Treadmill is run by motor driven treadmill belt, passes through frequency converter To control velocity variations when motor rotary speed realizes that regulation is run, the control of frequency converter, exactly by the signal of sensor Manage (voltage conversion), then count, and then obtain speed.By motor driven treadmill belt, make one at different rates or the gradient Passive running is walked about, and the comfortableness of motion substantially improves.

Specifically, the part 112 that tightly rises includes air bag and the first inflator pump (not shown), air bag are arranged on opening Place, the first air pump is connected with air bag by pipeline, the first air pump by adjust the pressure adjustment effect in air bag in The extruding force in human contact portion.

Pressure adjustment equipment includes the second inflator pump (not shown) and Non-return air valve (not shown), check valve are arranged on closed In air bag 110, the second inflator pump is connected with check valve.

As shown in Fig. 2 the present invention provides a kind of multi function treadmill, the treadmill includes：

Ring closes support 102, and ring closes support vertical and is arranged in running platform, with the structure in the range of user runs of platform 101 of running Into the environmental simulation at least closed an in one direction space with ensure simulated conditions making full use of and as far as possible prevent The interference of external environment.

Environment simulator (not shown), environment simulator is arranged on running platform 101 and/or ring is closed on support 102, ring Border analogue means is used to control to adjust at least one environment ginseng in environmental simulation space according to default ambient parameter or user instruction Number, the environment so that the environmental simulation space true road surface of reproduction is run.Ambient parameter include temperature, relative humidity, air velocity with And at least one resh air requirement etc., the concrete numerical value of relevant parameter in air is measured first, is then adjusted by environment simulator The preset value can independently be set according to itself comfort level demand to preset value user.

Environment simulator is connected with pressure adjustment equipment, according to the instruction of user or according to being arranged on Multifunctional running The body smectic condition of human body body fat detection means (not shown) detection on machine, is reasonably adjusted big in closed air bag 110 Air pressure is strong, to reach the purpose for mitigating user's body burden.Human leg can be offset during pressure maximum in closed air bag 110 80 or so the percent of pressure.

Further, environment simulator includes：Display 103, the adjustable ring that is arranged on of display 103 close support On 102, display 103 can be made to be located in user's vision range, its is main from its height of main regulation according to the eye level of user The scene image run for showing user in place.Display 103 is connected with Network dummy equipment, can be according to default running Scene projection shows corresponding image, and running scene includes the three big prevailing scenarios such as travelling, motion, game, and travelling scene provides Running scene under the environment of different location, such as can simulate and stay the woods, street, seashore etc..Moving scene, which provides, to be most suitable for The external condition of running, such as school playground, park, cell place.Scene of game is switched by scene of game, real in motion Existing game experiencing true to nature.More moneys running game are set in treadmill, the enjoyment of game can be not only looked in motion, may be used also To be connected to good friend by internal communication equipment, it is invited to experience the enjoyment of motion or game jointly with user.

Further, environment simulator also includes：Virtual Realization device (not shown), Virtual Realization device and display 103 communication connections, for showing the scene image that user runs in place to user's solid.Display 103 can be according to user's Motion state, such as the change of velocity, to show the progressively conversion of its scene, user is set to feel seemingly to place oneself in the midst of reality In.In a kind of interchangeable scheme, user can also realize that scene more true to nature switches experience by VR glasses, VR glasses with Treadmill realizes signal communication by wireless transmitting-receiving equipments, and with respect to such scheme, this scheme farthest avoids extraneous ring The interference in border, but weak point is also evident from validity aspect experience effect more preferably, and user wears VR in motion process Glasses can undoubtedly increase motion burden, reduce comfort level.

Preferably, environment simulator also includes：Several bladeless fan (not shown), bladeless fan are arranged at ring and closed On support 102, bladeless fan is used for air-flow direction and speed in adjusting ambient simulation space.Further, several nothings Blade fan closes support in ring and is distributed in a ring, and the air port of bladeless fan is in next bladeless fan adjacent in the clockwise direction Linearly it is oppositely arranged, so as to form wind cycle natural in environmental simulation space.While user movement amount increase, the dioxy of exhalation Changing carbon can also increase, and treadmill is generally all positioned at interior, and air passage rates are smaller, so several bladeless fans are just This defect is compensate for, while ensureing that air quickly circulates, user can also be made to experience natural wind in general such as and brushed, Improve motion comfort level.

It refer to Fig. 3, it is preferred that environment simulator also includes：Luminescent screen 105, luminescent screen 105 are arranged on ring and close support At the top of 102 inner surfaces, luminescent screen 105 is for the intensity of illumination in adjusting ambient simulation space, so that environmental simulation spatial light is shone Intensity reappears illumination brightness and the intensity on true road surface.The luminescent screen 105 includes several lamp bodies, and the arrangement of lamp body rule Closed in ring at the top of the inner surface of support 102.In the case where ensureing that intensity of illumination meets real motion scene as far as possible, to a certain degree On, intensity of illumination can also influence the mood of sporter, and user can be according to itself taste demand from the main regulation intensity of illumination.

It refer to Fig. 4, it is preferred that environment simulator also includes：Ultrasonic ultrasonic delay line memory 106, ultrasonic ultrasonic delay line memory 106 are set Put and closed in ring on stent inner surface, the humidity and temperature that ultrasonic ultrasonic delay line memory 106 is used in adjusting ambient simulation space.Ultrasonic wave Using electronics high frequency oscillation, (frequency of oscillation is 1.7MHz or 2.4MHz to atomizer 106, and more than the audibility range of people, the electronics shakes Swing and human body and animal absolutely not injured), by the high-frequency resonant of ceramic atomizing piece, aqueous water minor structure is broken up and is produced from So elegant water smoke plays a part of the humidity and temperature in adjusting ambient simulation space with this, is not required to heat or add anyization Learn reagent.Compared with the heating atomization mode, energy saving 90%.Substantial amounts of anion will be discharged in atomization process in addition, It produces electrostatic reaction with smog, the dust etc. floated in air, makes its precipitation, while can also effectively remove formaldehyde, an oxygen Change the harmful substances such as carbon, bacterium, make air get Dao Netization, reduce the generation of disease.

Further, running platform 101 includes：Treadmill belt (not shown) and road surface adjustable plate (not shown), road surface adjustable plate Be arranged on the lower section of treadmill belt, road surface adjustable plate is provided with adjustable and retractable post, adjustable and retractable post it is discrete be distributed in running Band lower section, for adjusting the degree of convexity on the surface of treadmill belt at position, so that running platform 101 simulates different running road surfaces Bump degree.Because different scenes is corresponding with different running road surfaces, so telescopic mast is by adjusting running belt surface Degree of convexity can simulate different road conditions to a certain extent, increase the experience authenticity of simulated scenario.

Multi function treadmill in the embodiment of the present invention, not only it can realize sporter's with the place of running of analog subscriber Motion requirement, and its environment simulator can bring a kind of vivid outdoor exercises experience effect of user, pass through display Different moving scene images is shown, simulates environmental change during outdoor running, the communication connection equipment being attached thereto can obtain Get the running state of user and adjust the display content of display therewith, be allowed to the moving scene of unlimited approaching to reality, in addition, The treadmill is also provided with some bladeless fans, luminescent screen and ultrasonic ultrasonic delay line memory, is respectively used to natural wind simulating, natural light According to and adjusting ambient space humiture.

It is long-term with human body due to rotating because the treadmill belt of treadmill is can to make one to be run thereon by rotating The ground of adaptation is walked about difference, therefore after moving on a treadmill for a long time, run completion when leg occur and stiff can not fit Phenomena such as should normally walking, can progressively recover, it is necessary to loosen to leg muscle.

Referring to Fig. 5, Fig. 5 is the structural representation for the multi function treadmill that the present embodiment has massage functions.

As shown in figure 5, in some embodiments, multi function treadmill machine also includes：Leg massor (107), leg Massager is arranged on ring and closed in support, and below display；Leg massor includes：The massage groove of anthropomorphic body legs curve (not identifying), massage groove are interior provided with the vibrator (not shown) with different vibration frequencies according to application voltage change.Massage Being arranged on after human motion terminates for groove, calf is extend into massage groove, vibrator starts vibration to be carried out to leg muscle Massage is loosened, and the quick muscle of user is quickly loosened, and accelerates human body and adapts to ground environment.

In some embodiments, multi function treadmill also includes：U-shaped handle 104 and baffle plate 108, U-shaped handle 104 Below the screen, openend user oriented, one end of baffle plate 108 is connected to U-shaped one end of handle 104 by rotating shaft, baffle plate 108 it is another One end is connected with the U-shaped buckle (not shown) of handle 104, and when baffle plate 108 snaps connection with U-shaped handle 104, U-shaped handle 104 is opened Mouth closure, stretches into leg in leg massor so that human body is rested on baffle plate 108.The setting of baffle plate 108 can make human body During towards massage groove, leg is extend into massage groove with the posture of dependence, enables massage groove to before and after shank position two Face is massaged, and has raised massage efficiency, while increases the comfort level of user, enhances Consumer's Experience.In some implementations In mode, the U-shaped closed-loop end of handle 104 is provided with multiple buttons, for selecting running scene and adjusting outer under different scenes Portion's condition.When user selects a specific moving scene, the simulation space acquiescence under the scene has corresponding ambient parameter, Meanwhile if default value does not meet self-demand, user can also by the multiple buttons that the U-shaped closed-loop end of handle 104 is set come From after main modulation, adjustment, currency can be set as the default value of ambient parameter by the memory module set in treadmill automatically.

Baffle plate 108 is shaped as rectangle but not limited to this, in some selective embodiments, the shape energy of baffle plate 108 Enough it is arc, sponge or elastic caoutchouc has been wrapped on the exocuticle of baffle plate 108, comfort level when being leaned on increase.

It the above is only some embodiments of the present invention, it is noted that come for those skilled in the art Say, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as Protection scope of the present invention.

Claims (10)

1. A kind of 1. multi function treadmill, it is characterised in that including：

   Running platform, the running platform are run place by cycle rotation analog subscriber；

   Closed air bag, the closed air bag wrap up the running platform, and the closed air bag opens up in the running platform top position There is the opening that the closed air bag is stretched into for human leg；

   The tight part that rises, the tight part that rises is arranged on the opening of the closed air bag, by extruding with human contact portion so that described Closure of openings；

   Pressure adjustment equipment, it is intracapsular that pressure adjustment equipment at least part structure is located at the closed parent, by described in compression Atmospheric density in closed air bag, the atmospheric pressure in the closed air bag is set to be more than ambient atmosphere pressure.
2. 2. multi function treadmill according to claim 1, it is characterised in that the tight part that rises includes air bag and first Inflator pump, the air bag are arranged on the opening, and first air pump is connected with the air bag by pipeline, institute The first air pump is stated by adjusting the pressure adjustment effect in the air bag in the extruding force in human contact portion.
3. 3. multi function treadmill according to claim 1, it is characterised in that the pressure adjustment equipment includes the second inflation Pump and Non-return air valve, the check valve are arranged in the closed air bag, and second inflator pump is connected with the check valve.
4. 4. multi function treadmill according to claim 1, it is characterised in that the treadmill also includes：

   Ring closes support, and the ring closes support vertical and is arranged in the running platform, the ring close support with it is described run platform with Family forms an environmental simulation space at least closed in one direction in the range of running；

   Environment simulator, the environment simulator is arranged on the running platform and/or the ring is closed on support, the environment Analogue means is used to control to adjust at least one environment in the environmental simulation space according to default ambient parameter or user instruction Parameter, the environment so that the environmental simulation space true road surface of reproduction is run.
5. 5. multi function treadmill according to claim 4, it is characterised in that the environment simulator includes：Display, The display is adjustable to be arranged on the ring and closes on support, and the display is located in user's vision range, for showing User runs the scene image in place.
6. 6. multi function treadmill according to claim 4, it is characterised in that the environment simulator also includes：Virtually Realization device, the communication of the Virtual Realization device and the display connect, and are run place for showing user to user's solid Interior scene image.
7. 7. multi function treadmill according to claim 4, it is characterised in that the environment simulator also includes：It is luminous Plate, the luminescent screen are arranged on the ring and closed at the top of stent inner surface, and the luminescent screen is used to adjust the environmental simulation space Interior intensity of illumination, so that environmental simulation space intensity of illumination reappears illumination brightness and the intensity on true road surface.
8. 8. multi function treadmill according to claim 5, it is characterised in that the multi function treadmill also includes：Leg Massager, the leg massor are arranged on ring and closed in support, and below the display；

   The leg massor includes：The massage groove of anthropomorphic body legs curve, interior be provided with of the massage groove become according to application voltage Change and the vibrator with different vibration frequencies.
9. 9. multi function treadmill according to claim 8, it is characterised in that the multi function treadmill also includes：It is U-shaped to help And baffle plate, the U-shaped handle be located at below the screen, openend user oriented, described baffle plate one end is connected by rotating shaft In described U-shaped handle one end, the other end of the baffle plate snaps connection with the U-shaped handle, the baffle plate and the U-shaped handle When snapping connection, the U-shaped handle opening is closed so that human body rest on the baffle plate by leg stretch into the leg by Rub in device.
10. 10. multi function treadmill according to claim 4, it is characterised in that the running platform includes：Treadmill belt and road surface Adjustable plate, the road surface adjustable plate are arranged on the lower section of the treadmill belt, and the road surface adjustable plate is provided with adjustable and retractable post, The adjustable and retractable post is discrete to be distributed in below the treadmill belt, for adjusting the surface of the treadmill belt at position Degree of convexity so that the running platform simulates the bump degree on different running road surfaces.