RU2188685C1 - Loading selector for muscle exercising mechanism - Google Patents

Abstract

FIELD: sportive equipment. SUBSTANCE: loading selector has key, rectilinear guiding mechanism including mount, guiding member and slide, which may be made in the form of compound load comprising stack of plate loads and kinematically connected to loading creating member, tie-rod located in openings of plate loads and having portions with reduced section area. Said portions are arranged in accordance with position of loads in stack and adapted for connection to key through plate load. Retainers cooperate one with another and with carriage through supporting surfaces spaced one from another by distance exceeding thickness of plate loads, wherein retainers are positioned. EFFECT: increased efficiency and simplified construction. 2 cl, 7 dwg

Description

 The invention relates to mechanisms that are designed to train muscles, more specifically, to devices for selection (selection) or adjust the strength of resistance to movement by changing the weight. Such selection devices create a load on the muscles as part of the mechanisms for their training. These mechanisms are hereinafter referred to as simulators.

 The prior art.

 Numerous exercises for the physical development and recovery of a person use the power of weight to compensate for the strength of the user. Currently, traditional goods in the form of weights, dumbbell, etc. largely replaced by more complex mechanisms for muscle training - simulators. Such mechanisms consist of a bed or some frame structure on which there is a user's place and elements for creating a power load on his muscles. These elements can be made as rods for hands, stops for arms or legs, levers in the form of oars, etc. The place for the user can also have various modifications, for example, a seat, a bed, etc. The power load is provided by the lifting of the load, the weight of which is determined by the set of a certain number of component loads. They can take the form of plates, disks, bricks, which are able to move in accordance with a given exercise. The force and kinematic connection between the element that creates a load for the user and the load is realized using a flexible link (flexible body), which can be a rope, cable, belt, chain, etc., or through solid links, for example, a lever system [1 ].

The closest is a device for creating a load using weight [2]. This device contains load plates for the lifting mechanism. The plates are stacked on top of each other in the form of a stack. Each plate has through vertical holes. These holes form the channels in which are located:
1. traction for connecting the cargo plates with each other and with a flexible link that lifts the entire load during the operation of the simulator;
2. guide rods that define the trajectory of movement of a set of load plates.

 Guide rods and plates form a translational pair of a rectilinear guide mechanism.

 The plates, thrust and key constitute the functional and constructive basis of the load selector, allowing you to select the load on the user's muscles.

 The thrust is made in the form of a rod loaded with longitudinal force, and consists of sections having a variable cross section. Sections with a reduced cross-sectional area are in accordance with the position of the cargo plates in the stack.

 The key is designed to connect the lower load plate to the thrust and has a shape that corresponds to the outlines of the reduced thrust section. All plates above the key constitute a set of cargo plates, participate in the movement and load the user. The load on the user's muscles varies in accordance with the number of load plates in the set, i.e. the load depends on the number of plates that are located above the plate attached to the thrust.

 The device contains many cargo plates. The thickness of one plate may vary within the permissible manufacturing error (tolerance). The error in the thickness of the set of plates is equal to the sum of the errors of all the plates and is a significant value. To ensure the connection of any load plate with the draft, it is necessary to comply with the provisions of the load plates and the minimum cross-sections of the draft. This led to a special draft design, which is made integral of the fingers. The number of fingers is equal to the number of load plates in the device. A reduced cross section is made on each finger. The fingers are connected to each other by a thread.

 In one embodiment, errors in the thickness of the load plates are compensated by the support of the thickness of the special washers that are installed between the fingers.

 In the second embodiment, spring-loaded balls are provided in the design of the fingers. They fix the mutual position of the fingers through each half of a turn when wrapping.

 This device is taken as a prototype.

 The disadvantage of this device is the complexity of the design of the rod and assembly operations, during which the provisions of the minimum sections of the thrust and the provisions of the load plates in the set are ensured. In addition, the composite design of the traction does not exclude the unwinding of the fingers during operation, which can injure the user.

 The objective of the invention is to simplify the design.

 The technical result, which consists in eliminating these drawbacks in the invention, containing a key, a rectilinear guiding mechanism including a bed, a guiding element and a slider, which is used as a composite load, including a stack of plate weights and traction kinematically connected with the load generating element, which is installed in holes of plate loads and has sections with a reduced cross-sectional area, which are located in accordance with the position of the loads in the stack and are intended for Connections with the key through the plate load is achieved by the fact that it is provided with locks, which interact with each other and with the carriage by means of support surfaces, the distance between which is greater than the thickness of the lamellar goods in which latches are installed.

 At the ends of the clamps, a protrusion and a hole corresponding in shape and aligned with each other are made.

 New in the device is that the plates are equipped with clamps that interact with each other with their supporting surfaces. The distance between these supporting surfaces exceeds the thickness of the cargo plate. In addition, the supports at their ends have a protrusion and a hole corresponding in shape and coaxial to each other.

 The invention is illustrated by drawings.

The invention will be further described in detail with reference to the accompanying drawings, in which:
figure 1 depicts a General view of the mechanism for muscle training;
figure 2 depicts a section along II-II of figure 1 on an enlarged scale;
figure 3 depicts a section along Ill-Ill figure 2 in an enlarged scale;
figure 4 depicts a section along the IV-IV of figure 2 on an enlarged scale;
figure 5 depicts a section along the VV of figure 2 on an enlarged scale;
6 depicts a remote element VI of figure 4. 5 on an enlarged scale;
Fig.7 depicts the remote element VII of Fig.6 on an enlarged scale.

 Figure 1-7 presents the best embodiment of the invention.

 The load selector for muscle training 1 (figure 1) is part of the simulator. This simulator consists of a bed 2, on which a seat 3 is fixed for the user. Rod 4 is for the user's hands. Using a flexible connection, the belt 5, the rod 4 is connected to a set of loads, which consists of a carriage 6 and plate loads 7. The loads 7 are arranged in a vertical stack.

 On the carriage 6 is fixed a rod 11 (Fig. 2. 3), which is located in the holes 12 of the plates 7. The belt 5 is connected to the carriage 6 through a pin 13. Areas with a reduced cross-sectional area are formed on the rod 11 in the form of grooves 14. These grooves are made in accordance with the position of the goods 7. More precisely, the grooves 14 are in the gaps 15 between the plate weights 7. The key 16 has a groove 17, which in shape corresponds to the grooves 14. When the groove 17 interacts with the grooves 14, the key 16 is fastened to the rod 11. All located above the key 16, the loads 7 are also connected to the rod 11. The guide protrusions 18 and the holes 19 ensure the correct position of the key 16 and the rod 11. The protrusions 18 are mounted on one of the adjacent loads 7. The holes 19 are made on the carriage 6 and the loads 7.

In the plate weights 7, latches 21 are installed (Figs. 4, 5, 6, 7), which, by their supporting surfaces 21a and 21b, touch each other and determine the horizontal position of the weights 7 in a vertical stack. Not a fundamental exception is:
1. the latch 211 of the uppermost load 71, the supporting surface of which 211a interacts with the carriage 6 (Fig.6);
2. the latch 212 of the lowest load 72, the supporting surface of which 212b interacts with the surface 2a of the frame 2 (figure 4).

 The distances between the supporting surfaces of the clamps 21, 211, 212, respectively L21, L211, L212, exceed the thicknesses h7, h71, h72 of the plate weights 7, 71, 72 on which these clamps are mounted. All latches 21 are located in the holes of the plate weights and secured with spring washers 25 (Fig.7).

 For a more reliable mutual fixation of the loads 7, as well as for their fixation relative to the frame 2 and the carriage 6, the latch 21 has a corresponding in shape and coaxial to each other ledge 26 and the hole 27 (Fig.7). Similar protrusion and hole are also made on the latches 211 and 212.

 The invention is used as follows.

 During training, the rod 4 makes a reciprocating motion (figure 1). At the same time, a force F is constantly acting on the rod 4 from the side of the belt 5, which loads the user's muscles. The force F is mainly determined by the total weight of the carriage 6 and the loads 7. The belt 5 transmits the movement of the rod 4 to the carriage 6. As a result, the carriage 6 alone or with a set of weights 7 makes a reciprocating motion along a double guide consisting of rods 8.

 Selection (selection) of the load on the muscles of the user is as follows. When the key 16 is removed, the load on the user's muscles, the force F (Figs. 1, 2) is basically equal to the weight of the carriage 6 together with the elements fixed on it. To increase the load, the keys 16 are inserted into the gap 151 (figure 4). The keys 16 are connected to the rods 11, and when lifting the carriage 6 of the rod 11, they additionally raise the load 71. The load on the user's muscles increases. When the key 16 is inserted into the gap 152, as shown in FIG. 4, two loads 7 are connected to the carriage 6, and the load increases even more.

 The maximum load on the user will be in the case when the key 16 is in the gap 153. In this situation, all loads 7 are connected to the carriage 6, and the load on the user will be the greatest.

Sources of information
1. US patent 5306211, A 63 In 21/062, 1994

 2. US patent 5342271, A 63 In 21/062, 1994

Claims (2)

 1. A load selector for a muscle training mechanism, comprising a key, a rectilinear guiding mechanism including a bed, a guiding element and a slider, which is used as a composite load, including a stack of plate weights and a traction kinematically connected with the load creating element that is installed in the plate openings cargo and has sections with a reduced cross-sectional area, which are located in accordance with the position of the goods in the stack and are designed to connect to the key through the plate th cargo, characterized in that it is equipped with clamps that interact with each other and with the carriage by means of supporting surfaces, the distance between which exceeds the thickness of the plate weights in which the clamps are installed.  2. The load selector according to claim 1, characterized in that at the ends of the clamps, a protrusion and a hole corresponding in shape and aligned with each other are made.

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