JP3212621U - Two-stage body - Google Patents

Abstract

A two-stage vehicle body having a buffering action is provided. A two-stage vehicle body includes a first frame braking unit, a second frame braking unit, and a rolling member. The first frame braking unit 2 has a shaft cover 21. The second frame braking unit 3 includes a shaft member 31 that is pivotally connected to the shaft cover 21. The rolling member 4 is installed between the shaft member 31 and the shaft cover 21. The first frame braking unit 2 and the second frame braking unit 3 rotate relative to each other. The two-stage vehicle body has a first frame connected to the first frame braking unit 2 and a second frame connected to the second frame braking unit 3. The first frame and the second frame are rotated relative to each other by the rolling member 4. When traveling on uneven road surfaces, the various vibrations and shocks generated by the road surface are absorbed, the fall of the loaded cargo is avoided, and the risk of rollover is reduced. [Selection] Figure 2

Description

  The present invention relates to a two-stage vehicle body having a buffering action.

The “tricycle having a swing cushioning device” disclosed in Patent Document 1 includes a front frame, a rear frame, and a hydraulic shock absorber.
The hydraulic shock absorber provides a shock absorber when the front frame and the rear frame rotate relative to each other.
The hydraulic shock absorber has a hydraulic assembly and a control assembly.
The hydraulic assembly includes a cylinder, a valve, a piston, a connecting rod set, and a main rod.
The cylinder has an oil chamber.
The piston is accommodated in the oil chamber so as to move, and the oil chamber is divided into a left chamber and a right chamber.
The main rod is fixed to the piston, and both ends of the main rod pass through the cylinder and are fixed on the front frame.

  The hydraulic shock absorber mainly provides a buffer when the front frame reciprocates along the lead surface relative to the rear frame.

Taiwan Utility Model Notice No. M466808 Specification

The hydraulic shock absorber has the disadvantages that pressure oil leaks outside, is affected by temperature, and is heavy.
An object of the present invention is to provide a two-stage vehicle body having a buffering action.

A two-stage vehicle body according to the present invention includes a first frame braking unit, a second frame braking unit, and a rolling member.
The first frame braking unit has a shaft cover.
The second frame braking unit has a shaft member pivoted on the shaft cover.
The rolling member is installed between the shaft member and the shaft cover.
The first frame braking unit and the second frame braking unit rotate relative to each other.

  The shaft cover is provided with an annular engagement groove, the shaft member is provided with an accommodation groove, one side of the rolling member is accommodated corresponding to the accommodation groove, and the other side is engaged. It is accommodated in the groove.

The two-stage vehicle body according to the present invention further includes a sleeve.
The sleeve is fitted and installed in the shaft member, inserted into the shaft cover, the first locking portion is installed at one end, the second locking portion is installed in the shaft member, and the third shaft is installed in the shaft cover. A locking part is installed, and the first locking part is locked between the second locking part and the third locking part.

  In the present invention, the first locking portion is a convex block, the second locking portion is an arrangement surface, and the third locking portion is a stop surface.

  In the present invention, the shaft cover is provided with a stop portion in an annular shape, the stop portion is adjacent to the engagement groove, and the other end of the sleeve is in contact with the stop portion.

A two-stage vehicle body according to the present invention includes a first frame, a second frame, a first frame braking unit, a second frame braking unit, and a rolling member.
The first frame braking unit is connected to the first frame and has a shaft cover.
The second frame braking unit is connected to the second frame and has a shaft member.
The shaft member is pivotally connected to the shaft cover.
The rolling member is installed between the shaft member and the shaft cover, and the first frame and the second frame rotate relative to each other.

  In the present invention, the shaft cover is provided with an engagement groove in an annular shape, the shaft member is provided with an accommodation groove in an annular shape, and one side of the rolling member is accommodated corresponding to the accommodation groove, and the other side Is accommodated in the engaging groove.

The two-stage vehicle body according to the present invention further includes a sleeve.
The sleeve is installed by being fitted to the shaft member, inserted into the shaft cover, and a first locking portion is installed at one end of the sleeve. A second locking portion is installed on the shaft member. A third locking portion is installed on the shaft cover. Thereby, a 1st latching | locking part is pinched | interposed and installed between a 2nd latching | locking part and a 3rd latching | locking part.

  In the present invention, the first locking portion is a convex block, the second locking portion is an arrangement surface, and the third locking portion is a stop surface.

  In the present invention, the shaft cover is provided with a stop portion in an annular shape, the stop portion is adjacent to the engagement groove, and the other end of the sleeve is in contact with the stop portion.

As described above, the present invention can achieve the following effects.
(1) Since the shaft member is pivotally connected to the shaft cover, the first frame braking unit and the second frame braking unit are located between the engaging groove and the receiving groove when the two-stage vehicle body travels on the uneven surface. Rotate relative to each other through a rolling member located at In this way, various vibrations and shocks that occur on the road surface are absorbed and buffered, so the second frame is limited to the first frame and loses balance, so that cargo on the second frame can be prevented from falling, and two-stage body rollover Can reduce the risk.
(2) The first locking portion at one end of the sleeve is locked between the second locking portion and the third locking portion, and the other end of the sleeve contacts the stop portion correspondingly. To do. Therefore, when the two-stage vehicle body travels forward, the first locking portion of the sleeve and the second locking portion of the shaft member are stopped by the third locking portion at one end of the shaft cover. Thus, the first frame braking unit and the second frame braking unit correspond to the bearings, and the first frame and the second frame generate an axial force toward the front. When the two-stage vehicle body moves backward, the rolling member between the first frame braking unit and the second frame braking unit further receives the axial force generated rearward by the first frame and the second frame. Assists, thereby making the two-stage body more stable when moving backward.
(3) The rolling member is formed of a plurality of light and small rolling balls, is low in cost, and is not easily damaged. Furthermore, since no hydraulic pressure is used, there is no oil leakage, temperature dependency, weight increase and the like.

1 is a front view of a two-stage vehicle body according to an embodiment of the present invention. FIG. 4 is a partially exploded perspective view of a first frame braking unit and a second frame braking unit according to an embodiment of the present invention. It is a perspective view after the combination of the first frame braking unit and the second frame braking unit according to the embodiment of the present invention. FIG. 5 is an enlarged view of a rear part of a combination of a first frame braking unit and a second frame braking unit according to an embodiment of the present invention. It is a perspective view which shows a mode that the 1st frame brake unit and 2nd frame brake unit by embodiment of this invention rotate relatively with a rolling member. It is sectional drawing which shows a mode that a 1st frame braking unit, a 2nd frame braking unit, and a rolling member respond | correspond to a bearing axial direction force at the time of front-back movement of this invention embodiment.

(One embodiment)
As shown in FIGS. 1 and 2, the two-stage vehicle body 1 according to the embodiment of the present invention includes a first frame braking unit 2, a second frame braking unit 3, a rolling member 4, a first frame 11, a second frame 12, And a sleeve 5.
In the present embodiment, the first frame 11 is a front frame of the two-stage vehicle body 1 and the second frame 12 is a rear frame facing the front frame.
The first frame braking unit 2 is connected to the first frame 11, and the second frame braking unit 3 is connected to the second frame 12.

As shown in FIGS. 2 and 3, the first frame braking unit 2 has a shaft cover 21, and the shaft cover 21 is provided with an engagement groove 211 in an annular shape.
The second frame braking unit 3 includes a shaft member 31. The shaft member 31 is pivotally connected to the shaft cover 21, and the housing member 311 is annularly installed in the shaft member 31.

The rolling member 4 is installed between the shaft member 31 and the shaft cover 21.
One side of the rolling member 4 is accommodated corresponding to the engagement groove 211.
The other side of the rolling member 4 is received in the receiving groove 311.
In this embodiment, the rolling member 4 is composed of a plurality of lightweight and small rolling balls, and is low in cost and hardly damaged.

The sleeve 5 is installed on the shaft member 31 and is inserted into the shaft cover 21.
The 1st latching | locking part 51 is installed in the sleeve 5 one end, and the 1st latching | locking part 51 is a convex block in this embodiment.
A second locking portion 312 is further installed on the shaft member 31, and the second locking portion 312 is an arrangement surface.
The shaft cover 21 is further provided with a third locking portion 212 and a stop portion 213, the third locking portion 212 is a stop surface, and the stop portion 213 is adjacent to the engagement groove 211.

As shown in FIG. 1, FIG. 3A and FIG. 4, when the two-stage vehicle body 1 travels on an uneven road surface, the shaft member 31 is pivotally connected to the shaft cover 21, whereby the first frame braking unit 2 and The second frame braking unit 3 rotates relative to each other through the rolling member 4 positioned between the engagement groove 211 and the accommodation groove 311 to generate a buffering action.
In this way, the various vibrations and shocks that occur on the road surface are absorbed, so the second frame 12 is limited to the first frame 11 and loses its balance, and the cargo (not shown) mounted on the second frame 12 falls. By avoiding this, the risk of overturning the two-stage vehicle body 1 can be reduced.

As shown in FIG. 1, FIG. 3A and FIG. 5, the first locking portion 51 at one end of the sleeve 5 is locked between the second locking portion 312 and the third locking portion 212. The other end contacts correspondingly on the stop 213.
Therefore, when the two-stage vehicle body 1 travels forward, the first locking portion 51 of the sleeve 5 and the second locking portion 312 of the shaft member 31 are stopped by the third locking portion 212 at one end of the shaft cover 21. Let
Thus, the first frame braking unit 2 and the second frame braking unit 3 correspond to bearings, and an axial force is generated in which the first frame 11 and the second frame 12 move forward.

When the two-stage vehicle body 1 backs backward, the second locking portion 312 of the shaft member 31 stops the first locking portion 51 of the sleeve 5 and the third locking portion 212 at one end of the shaft cover 21.
The present invention further assists in receiving the rearward axial force generated by the first frame 11 and the second frame 12 by the rolling member 4 between the first frame braking unit 2 and the second frame braking unit 3. This makes the two-stage vehicle body 1 more stable when moving backward.

  The above-described embodiments of the present invention do not limit the present invention. Therefore, the scope protected by the present invention is based on the claims of the utility model registration.

DESCRIPTION OF SYMBOLS 1 Two-stage body 11 First frame 12 Second frame 2 First frame braking unit 21 Shaft cover 211 Engaging groove 212 Third locking part 213 Stopping part 3 Second frame braking unit 31 Shaft member 311 Housing groove 312 Second Locking part 4 Rolling member 5 Sleeve 51 First locking part

Claims (10)

A two-stage vehicle body comprising a first frame braking unit, a second frame braking unit, and a rolling member,
The first frame braking unit has a shaft cover;
The second frame braking unit has a shaft member pivoted on the shaft cover,
The rolling member is installed between the shaft member and the shaft cover,
The two-stage vehicle body characterized in that the first frame braking unit and the second frame braking unit rotate relative to each other. The shaft cover is provided with an engagement groove in an annular shape,
The shaft member is provided with a receiving groove in an annular shape,
The two-stage vehicle body according to claim 1, wherein one side of the rolling member is accommodated in correspondence with the accommodation groove, and the other side is accommodated in the engagement groove. A sleeve fitted into the shaft member, inserted into the shaft cover, and provided with a first locking portion at one end;
The shaft member is provided with a second locking portion,
The shaft cover is provided with a third locking portion,
The two-stage vehicle body according to claim 1, wherein the first locking portion is locked between the second locking portion and the third locking portion. The first locking portion is a convex block,
The second locking portion is an arrangement surface,
The two-stage vehicle body according to claim 3, wherein the third locking portion is a stop surface. The shaft cover is provided with a stop portion in an annular shape,
The stop is adjacent to the engagement groove;
The two-stage vehicle body according to claim 3, wherein the other end of the sleeve is in contact with the stop portion. The two-stage vehicle body includes a first frame, a second frame, a first frame braking unit, a second frame braking unit, and a rolling member,
The first frame braking unit is connected to the first frame and has a shaft cover;
The second frame braking unit is connected to the second frame and has a shaft member;
The shaft member is pivotally connected to the shaft cover;
The rolling member is installed between the shaft member and the shaft cover,
The two-stage vehicle body, wherein the first frame and the second frame rotate relative to each other. The shaft cover is provided with an engagement groove in an annular shape,
The shaft member is provided with a receiving groove in an annular shape,
7. The two-stage vehicle body according to claim 6, wherein one side of the rolling member is accommodated corresponding to the accommodation groove, and the other side is accommodated in the engagement groove. A sleeve fitted into the shaft member, inserted into the shaft cover, and provided with a first locking portion at one end;
The shaft member is provided with a second locking portion,
The shaft cover is provided with a third locking portion,
The two-stage vehicle body according to claim 6, wherein the first locking portion is interposed between the second locking portion and the third locking portion. The first locking portion is a convex block,
The second locking portion is an arrangement surface,
The two-stage vehicle body according to claim 8, wherein the third locking portion is a stop surface. The shaft cover is provided with a stop portion in an annular shape,
The stop is adjacent to the engagement groove;
The two-stage vehicle body according to claim 8, wherein the other end of the sleeve is in contact with the stop portion.

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