JP3004323U - Simple speedometer for skiers - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a small speed measuring instrument that allows skiers to grasp the maximum speed of their own running speed (approximate hourly speed) and to understand the relationship between speed and hourly speed. [Configuration] 1 is a wind turbine. Reference numeral 2 is a shaft of the wind turbine, which is installed from the center of the hollow cone 3 through a bearing 5 of the bottom portion 4. 6
Is a strip-shaped spring spring, and has a weight 7 at its tip.
It is installed so that the belt-shaped mainspring spring will be extended by centrifugal force when the windmill rotates. That is, the weight 7 at the tip of the spiral spring 6 changes its position as the centrifugal force increases. A writing tool 8 is attached to this weight 7, and a circle indicating the maximum speed is drawn on a transparent disk for writing 9 with a scale. 10
Is a stopper attached to the shaft. Fixing the position of the strip spring spring 6, the writing tool 8 and the transparent disk 6 for writing
Plays a role in optimizing the distance between and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 It is used by skiers to understand the maximum speed (approximate hourly speed) of their skiing speed, to understand the relationship between speed and hourly speed, and to use it as a guide for safe sliding.

[0002]

[Prior art]

 There was no simple measuring instrument that could be worn on the body of a skier to measure speed (maximum speed).

[0003]

[Problems to be solved by the device]

 It is a small measuring instrument that can be mounted on a part of the body that allows the skier to be parallel to the ski. It provides a simple maximum speed measuring instrument that has a simple structure with few failures (no electrical system is used) and can be manufactured at low cost. is there.

[0004]

[Means for Solving the Problems]

 A wind turbine that rotates in response to wind, and a belt-shaped spring spring or a vine-shaped extension spring attached to the shaft end of the wind turbine are used as a device that captures the change in the tip position of the spring as a speed by centrifugal force. That is, a transparent disc with a scale is provided so that the weight can be attached to the weight of the tip of the spring, and the entry portion can be wiped off to repetitively use the scale. The lid that protects these filled parts is made of transparent material so that the speed can be checked from the outside. As an alternative to the method of indicating on the scale, a magnetized metal weight was attached to the tip of the spring, and a disk container equipped with an H-shaped iron indicator needle for the function of recording was attached to the tip of the rotating spring. A magnetic material was used to move the iron indicator needle to give the function of indicating the speed. As an alternative, a floating cylinder that moves under the influence of wind pressure inside the outer cylinder and has a wind pressure receiving surface, and a fixed cylinder that is installed facing the cylinder and has a bottom that holds the vine-shaped push spring and receives it. It was solved by providing a basic structure with a floating needle that stays at the position showing the maximum speed by a floating cylinder that moves by wind pressure.

[0005]

【Example】

 This plan will be described with reference to the drawings. FIG. 1 is a sectional view showing the whole and internal structure of one of the basic ideas, a type using a wind turbine. 1 is a windmill. Reference numeral 2 is a shaft of a wind turbine, which is installed from the center of the hollow cone 3 through a bearing 5 on the bottom 4. Reference numeral 6 is a band-shaped spring spring, which has a weight 7 at its tip. Install it so that when the windmill rotates, the belt-shaped mainspring spring extends due to centrifugal force. That is, the weight 7 at the tip of the spiral spring 6 changes its position as the centrifugal force increases. A writing tool 8 is attached to the weight 7 (details will be described with reference to FIG. 6), and a circle showing the maximum speed is drawn on the transparent disk for writing 9 having a scale. 10 is a stopper attached to the shaft. It plays a role of fixing the position of the band-shaped mainspring spring 6 and setting the gap between the writing tool 8 and the transparent disk 6 for writing to an optimum position. As the elastic body, a vine-shaped extension spring, a string-shaped rubber or the like is used in addition to the belt-shaped main spring 6. Reference numeral 11 denotes a transparent lid that covers the bottom portion 4. Readability of the scale. Reference numeral 12 is a bearing for the front end shaft of the wind turbine. Use a conical shape so as not to create resistance due to wind turbulence.

Reference numeral 13 is a cone attached to the shaft 2 of the wind turbine located at the tip of the hollow cone 3, and plays a role of preventing the resistance due to the turbulent flow of the wind. 14 is a bearing. Reference numeral 15 denotes a cylindrical cover for protecting the wind turbine, which is fixed by being attached to a seat 17 for receiving an end portion of the pillar 16. FIG. 2 is a perspective view of a cylindrical cover that protects the wind turbine. FIG. 3 is a side view of the wind turbine. FIG. 4 is a side view of the hollow cone. FIG. 5 is an enlarged view of the band-shaped spring spring. FIG. 6 is an enlarged side view showing the structure of the writing tool portion. Reference numeral 17 is a writing tool such as graphite. FIG. 7 is a perspective view of the filled transparent disk. 18 indicates a scale. The scale is converted to speed per hour. Mark both sides. There is a method of stacking circular paper as a material to be filled and using it with a certain thickness. Used paper is stacked behind the last sheet and used to keep a constant distance from the material.

FIG. 8 is a cross-sectional view of a speed recording disk with an iron indicator needle 20 having an H-shaped cross section that slides by magnetic force, which is another alternative of the writing target disk. Reference numeral 19 is a lid made of a thin and hard plate which faces the magnetic body, and has a thickness such that the magnetic force lines act to move the iron pointer 20. Reference numeral 21 is a thick circular plate forming a groove for holding and moving the indicating needle. The end of the thick circular plate 21 is T-shaped and is fitted into the lid 19 so that the surface of the thin hard lid and the iron pointer are brought as close as possible within the range of movement. The length on the opposite side of the T-shape determines the distance between the lid 11 that covers the bottom and the iron indicator needle, but the iron indicator needle is a movable size. 23 is a napped sheet attached to the outer surface of the thick circular plate 21, and 24 is a napped sheet attached to the inner surface plate. The iron indicator needle is held in the groove 25 to prevent movement due to vibration and the like, and movement by magnetic force is smooth. Let FIG. 9 is a front view A and a back view B of the speed recording disk. Reference numeral 25 is an arcuate groove for holding and moving the iron indicator needle 20. Attach to each position that indicates the level of speed. 26 is a scale number. It can be used again by returning the iron pointer to the 0 point by hand.

FIG. 10 is a diagram showing the entire structure and internal structure of another type using wind pressure. 27 is an outer cylinder. 28 is a lid at the bottom. Fit in the thread groove 29. Reference numeral 30 denotes a floating cylinder provided inside the outer cylinder, which plays a role of receiving a wind pressure and moving. The floating cylinder 30 is installed so that its opening faces the fixed cylinder 31 provided inside. A push spring 32 is built in the hollow portions of the floating cylinder 30 and the fixed cylinder 31. Reference numeral 33 is a space in which the floating cylinder 30 is pushed and moved by wind pressure. Reference numeral 34 is an air vent hole. The size of the hole is determined by calculating the correlation with the elasticity of the spring 32. That is, when the elasticity is small, the hole size is made small, and when the elasticity is large, the hole is made large. The floating cylinder 30 moves by receiving the wind pressure generated when the skier slides in parallel with the ski sliding.

Therefore, this speedometer is attached to a stock, a skier's arm, or the like that can be made parallel to skiing. The wind pressure increases in proportion to the speed, and the moving amount of the floating cylinder 30 increases in proportion to the wind pressure. At the edge of the moving floating cylinder 30, the indicator needle 35 is moved to indicate the scale 36 in which the amount of movement applied to the surface of the outer cylinder 27 is converted into the speed. The indicator needle 35 is movably sandwiched and held by finely fluffy sheets (this portion is enlarged and described in FIG. 12). 37 is a transparent scale cover. It is prevented that snowfall hits and the movement of the indicating needle 35 is deteriorated. The cover 37 can slide between the rear stopper 38 and the front stopper 39. This is for enabling the operation for returning the indicating hand 35 to the 0 point on the scale after observing the maximum speed indicated by the indicating hand 35. Reference numeral 40 denotes a stopper attached to the inside of the outer cylinder 27 so as to prevent the internal elements such as the floating cylinder 30 from retracting to the outside after the internal elements are stored.

FIG. 12 is a structural diagram of the indicating needle function. FIG. 13 is a sectional view of the indicator function. Reference numeral 41 is a groove for moving the indicating needle attached to the outer cylinder. 42 is a napped sheet. Smooths the sliding of the indicator needle 35. Reference numeral 43 is an indicator holding portion, and the napped sheet 42 covers the portion of the groove 41 to hold the indicator needle 35, and at the same time, the movement is smooth. The T-shape of the indicating needle 35 is a shape for moving in a well-balanced manner.

[00011]

[Effect of device]

 Since it is a structure that can show the approximate speed per hour only by mechanical movement without using an electrical system, it does not require labor and cost such as supplementary power supply. The filled tool can be used again, so there is no need to bother when using it. Since the structure is simple, it can be commercialized at low cost. You can learn speed by replacing it with a specific hourly speed, and you will know the relationship between your skiing skill and dangerous speed, and it will serve as a guide to enjoy skiing at a safe speed. It will also be a tool that can be used to instruct speed limits for safety management at ski resorts.

[Brief description of drawings]

[Figure 1] Overall structure diagram

FIG. 2 is a perspective view of a cylindrical cover that protects the wind turbine.

[Figure 3] Side view of a wind turbine

FIG. 4 Side view of hollow cone

FIG. 5 is an enlarged view of the mainspring spring portion of the belt.

FIG. 6 is an enlarged side view showing the structure of the writing implement portion.

FIG. 7 is a perspective view of a transparent disk for data entry.

FIG. 8 is a sectional view of a speed recording disc with an iron pointer.

FIG. 9 Front view A Back view B

FIG. 10 Overall structure diagram

FIG. 11 is a sectional view.

FIG. 12 is a structural diagram of the indicating needle portion

FIG. 13 is a sectional view.

[Explanation of symbols]

1, Windmill 2, Windmill Shaft 3, Hollow Cone 4, Hollow Cone Bottom 5, Bearing 6, Bearing Spring, Band Spring 7, Weight 8, Writing Tool such as Graphite 9, Transparent Disk 10 with Scale for Writing, Stopper 11 , A transparent cover 12 for covering the bottom of the hollow cone and the writing mechanism, a bearing 13 for the tip shaft of the wind turbine, a cone portion 14 for the shaft of the wind turbine attached to the tip of the hollow cone, a bearing 15, a cylindrical cover 16 for protecting the wind turbine, Cylindrical cover stanchion 17, pedestal end seat 18, scale 19, lid type thin hard plate facing magnetic material 20, iron indicator needle 21, circular plate with groove for holding and moving iron indicator needle 22, T-shaped portion 23, napped sheet 24 attached to the outer surface of the plate, napped sheet 25 attached to the inner surface of the plate, iron indicator needle holding and moving groove 26, scale 27, outer circle 28, bottom lid 29, screw groove 30, floating cylinder 31, fixed cylinder 32, push spring 33, space 34, air vent hole 35, indicator 36, scale 37, transparent scale cover 38, rear stopper 39, front stopper 40, internal stopper 41, indicator needle moving groove 42, napped sheet 43, indicator needle holder

Claims (4)

[Scope of utility model registration request] 1. A simple speedometer which is mounted on a traveling body and uses a generated wind to indicate the maximum speed during traveling, has a basic structure of:
A streamlined hollow conical container that prevents resistance due to wind turbulence, equipped with a wind turbine at the tapered end of the hollow conical container, the shaft of the wind turbine penetrates the bottom through the center of the hollow conical container, and extends from the bottom bearing to the shaft. , Equipped with an elastic body that expands and contracts depending on the strength of centrifugal force caused by the rotation of the wind turbine. A weight is attached to the tip of the elastic body, and a writing tool is provided on this weight. As an object to be filled, a disc with a scale made of a transparent material that can be repeatedly used by wiping the filled portion is provided. The bottom of the hollow cone, the elastic body, the graduated disc are covered by a transparent lid that allows the speed to be seen from the outside. A simple speedometer with the above structure. 2. The structure of a simple speedometer according to claim 1, wherein a plurality of circular sheets are stacked to form an entry target. 3. A magnetic body attached to the tip of an elastic body that expands and contracts depending on the strength of the centrifugal force generated by the rotation of the wind turbine to operate the speed indicating function. The speed indicator function is a combination of a thin lid-shaped circular plate that allows magnetic force to pass through and a circular plate that incorporates an iron indicator needle that is installed close to this plate. It is installed in the groove attached to. The iron indicator needle moves by the action of the magnetic body at the tip of the rotating elastic body to indicate the speed. The structure of the simple speedometer according to claim 1, which has the above structure. 4. A simple speedometer which is mounted on a traveling body and which uses a generated wind pressure to indicate the maximum hourly speed during traveling. The basic structure has an outer side provided with elongated grooves and scales for holding and moving an indicating hand. Cylinder, Floating cylinder with end face having wind pressure inside outer cylinder, Fixed cylinder with bottom located at end and opening facing each other, inserted into the hollow part of this floating cylinder and fixed cylinder for bridging It is composed of an elastic body. The amount of movement of the floating cylinder that moves the indicator needle by wind pressure is determined by the length of the space between the floating cylinder and the fixed cylinder, and the length of this space is set to cover the maximum speed that the skier can produce. The end surface of the fixed cylinder is provided with an air vent hole for adjusting the amount of movement of the floating cylinder. A simple speedometer with the above structure.