JPH0246928Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an apparatus for training upper body muscle strength.

BACKGROUND TECHNOLOGY Recently, there has been an increase in sales activities that provide instruction on various types of physical training under the name of so-called sports classes or clubs, but these types of organizations require various types of training equipment. In general, for strength training, barbells and iron bells have been used since ancient times.
Traditionally, muscle training has been done by lifting and lowering heavy objects, but this type of muscle training is only commonly practiced by sports experts and is dangerous, so it is not easily used by the general public. It's not something that can be done.

Therefore, in recent years, muscle training has become mainstream by constructing a frame that lifts and lowers weights that can be selected arbitrarily, and by pulling an index connected to the weights.This method is less dangerous and can be easily done by anyone. Since it is possible to easily perform desired muscle strength training, it has become popular to equip sports clubs and the like.

Problems that the invention aims to solve However, it is natural that various variations can be constructed as a means of raising and lowering weights within the frame and applying the weight to the muscles of desired parts of the body to be trained. However, conventional training machines of this type generally cannot achieve effective strength training. I mean,
Many training machines are designed for sports professionals and assume that those professionals know how to use the machines, so the average person will not be satisfied unless they are taught or taught how to use the machines. This is due to not being able to do proper strength training. For example, when training upper body muscles such as the pectoralis major, deltoid muscles, and biceps brachii, the lower body should be immobilized so that it hardly moves, but unless there is a way to sufficiently immobilize the lower body, ordinary people is a specific training machine (pull-up machine)
The problem is that it cannot be used effectively.

In view of the above circumstances, the present invention aims to provide a machine that allows anyone to perform effective muscle training easily and appropriately.

Means for Solving the Problems In order to achieve the above object, the present invention includes a height-adjustable seat, a backrest fixed at a predetermined angle of inclination to the seat, and a headrest fixed above the backrest; a pair of left and right arms pivotably supported near the shoulders of the backrest so as to be rotatable in the front-back direction; and a backrest provided protrudingly from the ends of the arms. The upper body strength training machine is characterized by comprising arm rests facing each other across the arms, and a weight lifting/lowering mechanism for applying a predetermined load to each of the arms.

Effects According to the above structure of the present invention, the person training sits on the seat, puts his back against the backrest, and puts his head against the headrest to stabilize his body and achieve the desired muscle strength. It allows you to maintain an appropriate posture during training and effectively train your muscles.

Embodiments The present invention will be explained below based on the illustrated embodiment. Figures 1 to 3 are external configuration diagrams.
2 is a base, 2 is a weight lifting mechanism portion covered with a resin cover 3, 4 is a seating portion, and 5 is a rotation operation portion.

As shown in FIG. 4, the weight lifting/lowering mechanism section 2 includes a frame 11 bridge-fixed near the top of a substantially gate-shaped frame 10 erected on the base 1.
1 has a pair of guide rods 12, 12 vertically disposed and supported by the frame 10.
A plurality of weights 13 are loaded so as to be movable up and down guided by the guide rods 12 and 12, and a connector 14 for connecting a desired number of weights 13 as appropriate is provided on the guide rods 12 and 12 so as to be movable up and down, and one end of the cable 15 is attached to this. The cable 15 has a movable pulley 17 suspended from the other end via fixed pulleys 16, 16. Moving pulley 17
Another cable 18 is routed around the base 1, and the cable 18 is connected to a pair of left and right pulleys 19, which are pivotally supported on the base 1.
Both ends are connected to cam sheaves 21 and 21 via 19, respectively. As shown in FIGS. 5 and 6, the cam sheaves 21, 21 are biased on shafts 22, 22 rotatably supported between one set of four bearings 20 supported in parallel on the base 1. The end of the cable 18 is fixed to the rod end 23, 23 and the stop 2 at the circumference in the large radius direction.
4 and 24. On the other hand, sheaves 25, 25 are pivotally attached to the ends of the shafts 22, 22, respectively, and one ends of other cables 26, 26 are connected to these sheaves 25, 25 via rope ends 27, 27, respectively. There is. Cable 26,2
The other end of 6 goes around the sheaves 25, 25 and passes through the hollow stay 30 (Fig. 4), and the stay 3
The sheaves 31 and 31 are pivotally supported at the upper ends of the sheaves 31 and 30, and are fastened around the sheaves 31 and 31, respectively. As shown in FIGS. 7 and 8, the sheave 31 has a shaft 33 fixed to a mounting bracket 32 supported at the upper end of the stay 30.
It is rotatably supported on the shaft. A rotary plate 34 is further pivotally supported on the shaft 33, and an arm 35 is fixed to the rotary plate 34 in a direction orthogonal to the rotary plate 34. A counterweight 3 is attached to one end of the arm 35.
6, and an arm rest part 37 is attached to the other end. The armrest part 37 is the backrest part 6
It protrudes to the side and is perpendicular to the arm 35. On the other hand, a cover body 38 that integrally covers the arm 35 and the rotary plate 34 is mounted on the sheave 31, and a clutch lever 39 is provided that passes through the cover body 38 and connects and disconnects the rotary plate 34 and the sheave 31. There is. As shown in FIG. 9, the clutch lever 39 is comprised of a rod biased toward the sheave 31 by a spring 41 in a cylinder 40 protruding from the rotary plate 34, and has a knob 42 at its outer end. There is. The inner end of the rod is an engagement hole 43 bored in the sheave 31.
It is possible to advance and retreat. A plurality of engagement holes 43 are bored in the sheave 31 at appropriate intervals on the same circumference.

FIG. 12 shows how the cables 15, 18, and 26 are routed, and is a schematic configuration for transmitting the load of the weight 13 to the arms 35, 35.

Next, a seating portion 4 is provided in the space sandwiched between the arms 35, 35. This seating part 4 is
It is placed on a frame 45 supported by columns 44 of the base 1 at a predetermined inclination angle with respect to the frame 1 . Frame 45
Back support arms 46, 46 are attached to the rotating operation parts 5, 5, with their ends connected to each other. A backrest 6 and a headrest 7 are respectively fixed to the frame 45, and a seat 8 is provided so as to be extendable and retractable from the backrest 6. As shown in FIGS. 10 and 11, a mounting seat 47 is fixed to the frame 45, the backrest 6 is mounted and fixed on the mounting seat 47, and a headrest 7 is mounted on the upper end of the backrest 6. are fixed and installed in series. The mounting seat 47 is a rectangular cylindrical body that straddles the frame 45.
A shaped seat rod 48 is inserted so as to be swingable in the vertical direction, and the seat portion 8 is fixedly attached to this seat rod 48. A spacer 49 is fixed to the upper end surface of the seat rod 48, and a pin 50 is provided protruding from the opposite side surface. Pin 5 is attached to the mounting seat 47 and frame 45.
Through holes 51 and 52 into which 0 can be inserted are coaxially drilled at regular intervals. In addition, in FIG. 3, 53 is fixed to the support column 44 with a seat belt.

Next, to explain the operation of the above embodiment, when training, a person 56 sits on the seat plate 50, rests his back on the backrest 48, and heads his head on the headrest 7, as shown in FIG. and sit down,
Both arms 57 hold the arm rests 37, 37 from top to bottom. Then, the movement of rotating the arm 57 from the bottom to the top around the shoulder can be performed with both arms simultaneously or alternately. To adjust the height of the seat part 8, as shown in FIG. 11, pull the seat part 8 toward you so that the seat rod 48 rotates clockwise in the figure around the spacer 49, and then remove the seat part 8 from the pulled out state. Move the seat 8 up and down with the keys to adjust the through hole 5 to the desired height.
When the seat rod 48 is rotated counterclockwise to insert the pin 50 into the through hole 51,
52 and the seat rod 48 is fixed. When the arm 57 is rotated from top to bottom, the arm 35 is rotated in the same direction, the rotating plate 34 and the sheave 31 are integrally rotated in the same direction, and the cable 26 is wound around the sheave 31. Therefore, the sheave 25 is pulled by the cable 26 and rotates in the opposite direction, and the cam sheave 21 rotates in the same opposite direction via the shaft 22. When the cam sheave 21 rotates, the cable 18 is wound around the cam sheave 21, and the movable pulley 17 is lowered. Since the moving pulley 17 is loaded with the load of the weight 13, the arm 57 is loaded with the same load. Note that when only one of the arms 57 is rotated, one of the cables 18 is fixed and the other is wound around the cam sheave 21, so the movement of the movable pulley 17 to descend is the same. , at that time, the load on the arm 57 is also the same.

Effects of the invention As explained above, those who perform strength training for the upper body can adjust the height to take the optimal sitting position for themselves, and hold the arm pads in their arms. By being fixed to this part, you can perform the desired strength training in an appropriate posture, and you can effectively train your muscles, so it is convenient and easy to use not only for sports experts but also for the general public. This has the effect of allowing muscle strength training to be performed safely and efficiently.

[Brief explanation of the drawing]

Figures 1 to 3 are front views showing the external configuration;
A plan view and a side view, FIG. 4 is a longitudinal side view showing the internal structure, FIG. 5 is a partial side view, FIG. 6 is a front view of FIG. 5, FIG. 7 is a partial front view, and FIG. Figure 7 is a side view, Figure 9 is a sectional view taken along line A-A in Figure 10,
The figure is a cross-sectional side view of the seating part, and Figure 11 is Figure 10B.
-B sectional view and FIG. 12 are schematic diagrams of the load transmission system. 2... Weight lifting mechanism, 4... Seating section, 5...
... Rotating operation section, 6... Backrest, 7... Headrest, 8... Seat, 35... Arm, 37... Arm rest part.

Claims (1)

[Scope of utility model registration request] a height-adjustable seat; a backrest fixed to the seat at a predetermined inclination angle; a headrest fixed above the backrest; and a shoulder of the backrest. A pair of left and right arms are respectively pivotally supported in the vicinity so as to be rotatable in the front and rear directions, arm rest parts protruding from the ends of the arms and facing each other across the backrest, and a predetermined portion attached to each of the arms. An upper body strength training machine characterized by comprising a weight lifting mechanism that applies a load.