JPS60111664A - Running machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, an endless belt is stretched around a belt pulley rotatably attached to a frame, and by rotating the endless belt by power or human power, a runner can perform running motion on the endless belt. It is about a running machine that allows you to do the following.

Conventionally, the running machine described above must be provided with a large number of carrier rollers between the belt wheels at both ends of the endless belt in order to guide the endless belt and create a tread on which the runner on the endless belt runs or walks. Nakatsuta. For this reason, with conventional running machines, the runner steps on a large number of carrier rollers via an endless belt during running motion, which gives the runner discomfort and unnecessary shock to the feet, which is different from when running on the ground, and the structure is heavy. It had the disadvantage of being complicated and expensive to manufacture.

The present inventor has solved the above drawback by providing a flat guide plate that slides and guides the endless belt along the back surface of the upper belt of the endless belt so as to be in contact with the back surface of the upper belt of the endless belt instead of the plurality of carrier rollers. Successful.

That is, an object of the present invention is to provide a running machine that gives a runner walking or running on an endless belt a sense of stability and tactile sensation similar to that of walking or running on the ground. Another object of the present invention is to provide a running machine with a simplified mechanism, reduced weight, and reduced manufacturing cost.

Further objects of the invention will become apparent from the following detailed description and the accompanying drawings.

In accordance with the above object, the present invention has an endless belt stretched between two belt pulleys rotatably attached to a frame, and by rotating the endless belt by power or human power, a runner can perform running motion on the endless belt. The running machine is configured such that the endless belt between the two belt pulleys is guided so as to slide along the back surface of the upper belt so as to be in contact with the back surface of the upper belt. A running machine characterized by being equipped with a guide plate is disclosed.

In the present invention, the guide plate is a flat plate that runs in contact with the back surface of the upper belt of the endless belt stretched by two belt pulleys, and the surface material of the guide plate is determined depending on the type of the endless belt, especially the back surface. Various materials are selected depending on the material of the belt, the slope of the endless belt, the speed of the endless belt, the driving force of the belt pulley, the weight of the runner, etc. For example, in a power-driven running machine of the present invention in which the upper belt of the endless belt and the guide plate are both placed in a horizontal state, the guide plate has a coefficient of friction on a substrate such as a wooden veneer, plywood, synthetic resin plate, or steel plate. It is preferable to use a material whose main component is a self-lubricating resin such as a polyamide resin, a polyacetal resin, or an ethylene tetrachloride resin with a small viscosity, and which is covered by painting, coating, lining, or the like. Further, for example, in a power-driven or non-powered running machine in which the upper belt of the endless belt and the guide plate both form a slope, the guide plate may be only the substrate having a hard and smooth surface. Further, it is preferable that the guide plate has an elastic plate such as a rubber plate or a foamed synthetic resin plate laminated as a core material of the substrate in order to prevent noise and reduce impact on the feet of the runner. As the endless belt, a rubber belt, a rubber-coated stainless steel belt, a cloth belt, etc. are used.

The present invention will be explained below with reference to embodiments shown in FIGS. 1 to 3.

The running machine of the present invention shown in FIGS. 1 to 3 includes a frame 10, two belt pulleys 21 and 22 rotatably attached to the frame 10 via shafts 210 and 220, and a belt pulley 21 and a belt. An endless belt 30 stretched between the car 22 and the guide plate 4 fixed on three support rods 11, 12, and 13 attached to the frame 10.
0 and a drive device 50 for driving a belt pulley 21 installed on the frame 10.

The endless belt 30 is a rubber belt or a steel belt whose front or back surfaces are coated with rubber. The guide plate 40 is made by adhering a nylon (polyamide resin) plate 42 onto the aforementioned substrate 41 (including a layered elastic plate).

The drive device 50 includes an electric motor 51 provided on the frame 10.
, a pulley 52 fixed to the drive shaft 511, and a belt pulley 2
The pulley 53 fixed to the shaft 210 of 1 and the pulley 52
It consists of a belt 54 that interlocks a pulley 53 and a pulley 53.

Therefore, in the running machine of the present invention shown in FIGS. 1 to 3, when the drive device 50 is activated, even if the weight or exercise force of a runner (not shown) is applied on the endless belt, the upper side of the endless belt 30 The back surface 3011 of the belt 301 is the guide plate 4
The endless belt 30 is slid by the surface 42 of the
rotates, allowing the runner to continue his running motion.

FIG. 4 shows another embodiment of the running machine of the present invention.

The running machine of the present invention shown in FIG.
Two belt pulleys 21B and 22B are rotatably attached to both ends of B via shafts 210B and 220B, an endless belt 30B stretched between both belt pulleys, and three belt pulleys attached to the frame 10B. The guide plate 40B fixed on the support rods 11B, 12B and 13B, and the frame 10
It consists of a pair of support rods 60B that fit into the front end of the frame 10B and form a slope on the frame 10B.

The endless belt 30B is a cloth belt made of nylon fiber or the like. The guide plate 40B is made by sequentially laminating the elastic plate and the polyacetal resin plate on the substrate. The support rod 60B is designed such that pins 62 can be inserted into three holes 61B.

Therefore, in the running machine of the present invention shown in FIG. 4, the endless belt 30B forms a slope and the back surface 3011B of the upper belt 301B is in contact with the slippery surface of the guide plate 40B. Even when the weight and exercise force of a person (not shown) is applied, the endless belt 30B rotates, allowing the runner to perform a running motion.

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the running machine of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is an enlarged front view of a part of the guide plate, and Fig. 4 is a running machine of the present invention. It is a front view with a part omitted showing another example. 10, 10B------ Frame 21, 22
, 21B, 22B---- Belt wheel 30, 30B---
--------Endless belt 301, 301B------
- Upper belt 3011, 3011B ------ Same as above, back side 40, 40B --- Guide plate patent applicant Chizuru Watanabe

Claims (1)

[Claims] An endless belt is stretched between two belt wheels rotatably attached to a frame, and a runner can run on the endless belt by rotating the endless belt using power or human power. The running machine is provided with a guide plate that slides and guides the back side of the upper belt of the endless belt in contact with the back side of the upper belt between the two belt pulleys. Featured running machine.