JP3437508B2 - Saddle height adjustment device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a training device, and more particularly to a saddle height adjusting device in a stationary stationary training device of a bicycle type for rotating a pedal.

[0002]

2. Description of the Related Art Recently, the problems to be solved by the invention
2. Description of the Related Art Bicycle-type training devices that exercise strength by pedaling a pedal under a desired load while straddling a saddle have become widespread.

That is, FIG. 7 is a diagram showing a schematic configuration of the above-mentioned conventional stationary training apparatus, in which a handle 3, a saddle 4 and a pedal 5 are rowed on a main body frame 2 covered by a cover 1. A power generation brake 7 and the like, which are rotationally driven via a chain 6 and the like, are provided. Then, while straddling the saddle 4, the pedal 5
It is possible to train especially the legs, waist, etc. by rowing and driving the power-generating brake 7 to which a load is appropriately applied.

By the way, a guide frame 8 having a U-shaped cross section is provided in the main body frame 2 in a state of being inclined in a vertical plane, and an opening side of the guide frame 8 faces the guide frame 8. Two sets of upper and lower guide rollers 9a and 9b are provided. A saddle post 10 having a rectangular cross section with the saddle 4 mounted on the top end is slidably inserted between the guide frame 8 and the guide rollers 9a and 9b along the guide frame 8 in the longitudinal axis direction thereof. Has been done.

The saddle post 10 is fitted with a rectangular frame-shaped lock arm 12 having a lock release lever 11 attached to the base end thereof, and the lock arm 12 has a lock arm 12 near the base end. It is pivotally attached to the body frame 2 via the elongated hole 13 and the shaft 14. Lock pins 15, 15 facing the front and rear surfaces of the saddle post 10 are attached to the lock arm 12, and the lock arm 12 is provided between the tip of the lock arm 12 and the guide frame 8. The tip end side of 12 is urged downward so that the lock pins 15 and 15 are moved to the saddle post 10
A spring 16 is provided for making pressure contact with both front and rear surfaces.

In order to increase the height of the saddle 4, however, when the saddle post 10 is pulled upward, the lock arm 12 whose tip portion is urged downward by the spring 16 moves in the longitudinal direction of the saddle post 10. The saddle post 10 is lifted up so as to be orthogonal to the axis, and the state in which the two lock pins 15 are pressed against the saddle post 10 is released.
Can be freely raised to a predetermined height.

When the height of the saddle 4 is lowered, when the lock release lever 11 is pushed downward, the tip end of the lock arm 12 is lifted upward against the spring 16 and is locked in the same manner as described above. The pressed state of the pin 15 to the saddle post 10 is released. Therefore, the saddle post 10 can be freely lowered, and the saddle 4
The height of the can be adjusted to a predetermined height.

However, in such a structure, since the lock release lever 11 is mounted on the main body frame 2, when the height of the saddle 4 is adjusted, the adjustment is not possible when the saddle 4 is straddled. It is possible, and the height must be adjusted each time the user dismounts from the saddle 4 or adjusts the height before straddling the saddle 4, and the adjustment is troublesome.

Under these circumstances, a saddle height adjusting device has been proposed which is capable of adjusting the height of the saddle while straddling the saddle.

That is, FIG. 8 is a diagram showing a schematic structure of a saddle height adjusting device capable of adjusting the height of the saddle while straddling the saddle, and a saddle post having a saddle mounted on the top end thereof. A column 21 fixed to the base frame 20 of the main body frame is inserted into the column 10. On the other hand, a holder bracket 22 having a U-shaped cross section is fixed to the lower end of the saddle post 10, and one end of a lock arm 24 is pivotally attached to the holder bracket 22 by a shaft 23. The lock arm 24 is provided with lock pins 25, 25 facing each other on the front and rear surfaces of the support column 21 inserted into the lock arm 24. The lock pins are attached to the other end of the lock arm 24 and the holder bracket 22. A spring 27 for biasing the other end of the lock arm 24 upward between the stopper piece 26 and the lock pins 25, 25 is pressed against the front and rear surfaces of the column 21 to fix the height position of the saddle post 10. Has been done. The tip of a lock release rod 28 connected to a lock release lever (not shown) provided in the vicinity of the saddle has a pin shaft 2 of a lock pin 25 provided on the shaft 23 side of the lock arm 24.
5a is engaged.

When the lock release rod 28 is pushed down via the lock release lever, the lock arm 2
4 is rotated around the shaft 23 against the spring 27 in the clockwise direction in the drawing. Therefore, the lock pin 2
The pressure contact state of the column 5 to the column 21 is released, and the saddle post 1
0 can move up and down along the column 21. Then, when the lock release lever is lifted and the saddle is loaded with the weight and lowered to a desired height, the lock release lever is released, and the lock arm 24 is returned to its original state by the spring 27, and the lock arm 24 is released. The lock pins 25 of 24 are pressed against both front and rear surfaces of the column 21, and the saddle post 10 is automatically held at that height.

As described above, in the structure shown in FIG. 8, the locked state of the saddle post can be released by the lock release lever provided in the vicinity of the saddle, and the height of the saddle can be adjusted.

However, in such a device, a holder bracket 22 having a lock arm 24, a spring 27 and the like attached to the lower end portion of the saddle post 10 is provided, and this holder bracket 22 slides in the axial direction together with the saddle post 10. Therefore, there is a dead space for allowing the movement of the holder bracket 22 and the like, the frame cannot be arranged around the saddle post 10, the frame structure is limited, and the degree of freedom in design is small. .

[0014] The present invention has been made in view of these points, easily makes it possible to adjust the height of the saddle in a state where straddling the saddle, Ji dead space raw around the saddle post lest The purpose of the invention is to obtain a saddle height adjusting device.

[0015]

The invention according to claim 1 is
A saddle is attached to the top end, and a cylindrical saddle post is provided so as to be movable in the axial direction with respect to the main body frame, a pillar attached to the main body frame, and the saddle post is fitted, and the inside of the saddle post One end of the support post is swingably mounted on the saddle post by a horizontal shaft, and lock pins are provided on the axis parallel to the horizontal shaft and are opposed to both front and rear surfaces of the support column. A lock arm, a spring member disposed between the inside of the saddle post and the lock arm, for urging the other end of the lock arm upward, and for urging the lock pin in a pressure contact direction with respect to the support column; A lock release rod disposed in the saddle post, which is operated by a lock release lever provided in the vicinity of the saddle to operate the lock arm in a lock release direction. Characterized by, saddle height adjustment device.

The invention according to claim 2 is the invention according to claim 1, characterized in that the end face of the horizontal shaft for supporting the lock arm on the saddle post is constructed so as not to project from the outer surface of the saddle post. And

The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention according to (1), the support column can swing about a horizontal axis with respect to the main body frame.

The invention according to claim 4 is characterized in that, in the invention according to any one of claims 1 to 3, the saddle post is attachable to and detachable from the body frame.

According to a fifth aspect of the invention, in the invention according to any one of the first to fourth aspects, the center of the horizontal shaft supporting the lock arm and the contact point of the lock arm and the lock release rod when the lock is released. The distance is set to be longer than the distance between the center of the horizontal axis and the center of the lock pin.

The invention according to claim 6 is the invention according to any one of claims 1 to 5, characterized in that the length of the lock pin is set shorter than the inner dimension of the saddle post.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.

FIGS. 1 and 2 are views showing an embodiment of the first invention, in which a body frame 2 having a U-shaped cross section has two sets of upper and lower saddle post guide frames 2 having a U-shaped cross section.
9 and 29 are fixed and formed in a hollow frame shape. In the saddle post guide frame 29, a saddle post 10 whose top end is inclined with respect to the vertical axis so as to be located on the rear side of the training device is detachably inserted. Both sides are supported by a slide plate 30 provided on the inner surface of the main body frame 2 and a guide roller 31 provided inside the saddle post guide frame 29 so as to face the saddle post 10, and the saddle post 10 is elongated. It is slidable in the axial direction.

The saddle post 10 has a tubular shape with a rectangular cross section, and the saddle 4 is fixed to the top end thereof.

On the other hand, the base frame 2 of the main body frame 2
0 is a horizontal axis 3 extending in the left-right direction of the training device
A column 33 is erected so as to be swingable about the center 2, and the column 33 is inserted into the saddle post 10. That is, the lower portion of the saddle post 10 is fitted on the pillar 33.

A lock arm 34 is provided in the saddle post 10 near its lower end, as shown in an enlarged view in FIG. 3, and one end of the lock arm 34 is parallel to the horizontal shaft 32. Saddle post 10 with horizontal axis 35
Is pivotally attached to. Both ends of the horizontal shaft 35 are not projected from the outer surface of the saddle post 10, so that the saddle post 10 can be easily removed from the body frame 2 at the time of maintenance or the like. The lock arm 34
As shown in FIG. 4, it is formed in a rectangular frame shape, and the support column 33 is inserted into the inside thereof, and the lock arm 34 thereof is provided.
A pair of lock pins 36a and 36b are rotatably mounted therein so as to face the front and rear surfaces of the column 33.
The lock pins 36a and 36b are provided on an axis parallel to the horizontal shaft 35, and the lock pin 36a facing the surface of the support column 33 on the horizontal shaft 35 side is formed in a roller shape.
A surface of the other lock pin 36b facing the support column 33 is cut out in a flat shape. The length of the lock pins 36a and 36b is set shorter than the inner dimension of the saddle post 10.

A spring locking recess 37 is formed in the lock arm 34 at a position below the horizontal shaft 35, and a base end portion of a coil spring 38 is inserted and locked in the spring locking recess 37. Has been done. The tip of the coil spring 38 is pressed against the inner surface of the saddle post 10, and the force of the coil spring 38 causes the lock arm 34 to rotate upward about the horizontal axis 35. The lock pins 36a and 36b are biased so as to be pressed against both surfaces of the support column 33.

On the other hand, in the saddle post 10, a lock release rod that is movable in the axial direction of the saddle post 10 and can come into contact with the upper end on the other end side of the lock arm 34 on the tip side from the lock pin 36b. 39 are provided. As shown in FIG. 1, a spring guide rod 40 is projectingly provided at the top end of the lock release rod 39, and a spring receiver 41 provided at the tip of the spring guide rod 40.
A spring 43 is interposed between the spring support piece 42 fixed to the inner surface of the top end portion of the saddle post 10, and the lock release rod 39 is always urged upward by the spring 43. A lock release lever 44 is pivotally mounted below the saddle 4 so as to be swingable around a shaft 45, and a spring guide rod 40 provided on a lock release rod 39 is provided at the front portion of the lock release lever 44. The tip end is pressed against the spring receiver 41, and the lock release lever 44 is held at the position shown in FIG.

In order to raise the position of the saddle 4, the saddle post 10 is pulled up while holding the saddle 4, and one end of the lock arm 34 is raised via the horizontal shaft 35. Therefore, the lock pin 36
The pressure contact state of the a and 36b with respect to the column 33 is released, and there is no part that resists the sliding of the saddle post 10, so that the saddle post 10 can be raised freely.

When the lifting of the saddle post 10 is stopped, the coil spring 38 pivots the lock arm 34 around the horizontal shaft 35 and presses the other end upward, so that the lock pins 36a and 36b move to the column 33. Even if the saddle post 10 is pressed against the front and rear surfaces again and a load is applied to the saddle post 10, the saddle post 10 does not descend.

When the lock arm 34 is rotated as described above, the shafts of the lock pins 36a and 36b are slightly moved in the left and right directions, but the lower end of the support column 33 is located at the lower end of the base frame 2.
Since it is pivotally attached to 0, the lock pins 36a and 36b are
The column 33 swings in response to the movement of the shaft of the lock arm 34, and the swing of the lock arm 34 is not hindered.

On the other hand, when lowering the position of the saddle 4, the rear end of the lock release lever 44 is operated so as to be lifted upward. Then, the lock release rod 39 is moved downward against the spring 43, the lower end portion of the lock release rod 39 abuts against the upper portion on the other end side of the lock arm 34, and the portion is pressed against the coil spring 38. Then, the lock arm 34 is rotated around the horizontal axis 35 to the position shown by the alternate long and short dash line in FIG. Therefore, the pressure contact of the lock pins 36a and 36b with respect to the column 33 is released,
The saddle post 10 is freely lowered. In this case, since the lock release rod 39 abuts on the other end side upper part which is the tip of the lock arm 34, the operating position to the lock arm 34 becomes far from the horizontal shaft 35, and it can be operated with a comparatively small force. . Therefore, when the pulling up of the lock release lever 44 is released, the lock pins 36a and 36b are pressed against both surfaces of the support column again, and thereafter, the lowering of the saddle post 10 is prevented and the position of the saddle 4 is fixed.

In the above embodiment, the lock arm 34 is urged to the lock position by the coil spring 38. However, as shown in FIG. 5, the plate spring 46 urges the lock arm 34 to the lock position. You may be encouraged.

In both of the above embodiments, the coil spring 38 or the leaf spring 46 is provided at one end of the lock arm 34 where the horizontal shaft 35 is provided.
A spring member for urging the other end of the lock arm 34 upward may be provided between the other end of the lock arm 34 and the inner surface of the saddle post, and is fixed to the saddle post 10 as shown in FIG. The same effect can be obtained by providing the spring 48 and the pressing member 49 between the spring receiver 47 fixed by the pin 47a and the lock arm 34.

However, in the above-described embodiment, since the saddle locking mechanism is entirely housed in the saddle post 10, the locking device can be made compact and a dead space can be provided around the saddle post 10. Since there is no need to provide it, there is no restriction on the arrangement of the main body frame, and by providing a lock release lever near the saddle, the height of the saddle can be easily adjusted while straddling the saddle. Also, since the column is swingable, it is not necessary to slide the lock arm shaft center when unlocking, and the lock arm shaft center can be fixed, and the lock arm shaft center can be fixed in the interior space of the saddle post. It is not necessary to provide an extra space for allowing the movement, and the space can be used to the maximum. Furthermore, since the saddle post 10 is detachably provided, disassembly and assembly during maintenance becomes easy. Further, since the lock pins 36a and 36b that are pressed against the support column 33 are rotatable, it is possible to prevent partial wear of the lock pins 36a and 36b, and thus to improve durability.

In each of the above-mentioned embodiments, the shape of the lock pin is not limited to the above-mentioned shape, and the shape and combination thereof can be appropriately changed in design and the column can be locked. Anything will do.

[0036]

As described above, according to the present invention, since the lock release lever is provided in the vicinity of the saddle and the lock of the saddle post can be released by operating the lock release lever, the saddle post is straddled. The saddle post can be moved up and down as it is, and the height of the saddle can be adjusted freely, so there is no need to descend from the saddle each time. Moreover, since the locking mechanism, such as a lock arm is disposed in the saddle post, can very compact its configuration, it is not necessary to provide a dead space for the movement of the lock mechanism around the saddle post, the frame structure However, there is no possibility that the degree of freedom in design is reduced due to the limitation of the lock mechanism.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged cross-sectional view of the lock mechanism portion of FIG.

4 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 5 is a cross-sectional view showing another embodiment of the present invention, which corresponds to FIG.

FIG. 6 is a diagram showing still another embodiment of the present invention.

FIG. 7 is a diagram showing a schematic configuration of a conventional saddle height adjusting device.

FIG. 8 is a view showing another example of a conventional saddle height adjusting device.

[Explanation of symbols]

2 body frame 4 saddle 8 guide frame 9a, 9b Guide roller 10 saddle post 11,44 Lock release lever 12, 24, 34 Lock arm 15, 36a, 36b Lock pin 16,27 spring 21,33 stanchions 22 Holder bracket 28 Lock release rod 29 Saddle post guide frame 30 slide plate 31 Guide roller 38 coil spring 39 Lock release rod 46 leaf spring 47 Spring holder 48 springs

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-11-169482 (JP, A) Actually open 3-37086 (JP, U) Actually open 6-39687 (JP, U) Actually open 60- 10665 (JP, U) Actual development 60-128654 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A63B 22/06 B62J 1/00

Claims (6)

(57) [Claims] 1. A cylindrical saddle post having a saddle attached to the top end thereof and being movable in the axial direction with respect to the main body frame, and a column attached to the main body frame and fitted with the saddle post. A lock disposed in the saddle post, one end of which is swingably attached to the saddle post by a horizontal axis, and which is disposed on an axis parallel to the horizontal axis and which faces the front and rear surfaces of the column, respectively. Lock arm with pin, inside saddle post and above
And a lock member provided near the saddle, the spring member being disposed between the lock arm and the lock arm for urging the other end of the lock arm upward and urging the lock pin in the direction of pressure contact with the strut. is actuated to operate the locking arm in the unlocking direction by the lever, distribution in the saddle post
A saddle height adjusting device, comprising: an unlocking rod provided . 2. The saddle height adjusting device according to claim 1, wherein an end surface of a horizontal shaft supporting the lock arm on the saddle post is configured so as not to project from an outer surface of the saddle post. 3. The column according to claim 1, wherein the column is swingable about a horizontal axis with respect to the main body frame.
Saddle height adjustment device described. 4. The saddle height adjusting device according to claim 1, wherein the saddle post is attachable to and detachable from the body frame. 5. A center of a horizontal axis for supporting the lock arm,
The distance between the lock arm and the contact point when the lock release rod is unlocked is set longer than the distance between the center of the horizontal axis and the center of the lock pin. The saddle height adjusting device according to any one of the above. 6. The length of the lock pin is set to be shorter than the inner dimension of the saddle post.
6. The saddle height adjusting device according to any one of 5 to 6.