CN102464072B - motorcycle rear frame - Google Patents

Abstract

A rear frame of a motorcycle includes an integrally formed frame. The integrally formed frame includes a base detachably connected to a front frame, a lower connecting unit formed on the bottom surface of the base, and an upper connecting unit formed on the top surface of the base. Since the base is detachably arranged on the front frame, as long as the front frame is properly designed, the rear frame of the motorcycle of the present invention can be applied to vehicles of different models, and has better versatility, thereby saving mold opening costs. The integrally formed frame made by casting can not only improve the overall strength but also omit the subsequent welding operation, so as to enhance safety and save assembly costs.

Description

motorcycle rear frame

【Technical field】

The invention relates to a motorcycle frame, in particular to a motorcycle rear frame.

【Background technique】

Referring to Fig. 1, the rear frame of existing motorcycle comprises an elbow unit 11, an upper seat body 12 welded on the top surface of the elbow unit 11, and two welded on the bottom surface of the elbow unit 11 for shock absorbers respectively. The connection seat 13 provided. In addition, the rear frame of the existing motorcycle is welded to a front frame 14 through the elbow unit 11 .

To sum up, the production of the rear frame of the existing motorcycle requires several times of welding, so not only the operation process is complicated and labor-intensive, but also the high temperature generated during welding will cause the bending pipe unit 11 made of metal to deform , if the degree of deformation is too large, it will cause the subsequent assembly operation to fail to proceed smoothly. In addition, whether the strength of the welding point is sufficient to withstand the stress generated by the vibration of the vehicle during driving also has hidden risks.

Therefore, how to improve the above-mentioned shortcomings has always been an important goal of continuous efforts of those skilled in the art.

【Content of invention】

Therefore, the object of the present invention is to provide a rear frame of a motorcycle which is integrally formed and has high versatility.

Therefore, the rear frame of the motorcycle of the present invention includes an integrally formed frame body. The motorcycle includes a front frame, and the rear frame is arranged behind the front frame.

The integrated frame body includes a base detachably connected to the front frame, a lower connection unit formed on the bottom surface of the base, and an upper connection unit formed on the top surface of the base.

The rear frame of the motorcycle is characterized in that: the base includes two side bar parts spaced apart from each other and connected to the front frame, and a tail bar part connected to the free end of the side bar part. The side bar part cooperates with the tail bar part to make the base U-shaped.

The rear frame of the motorcycle is characterized in that: the front frame includes two connecting pipes for connecting the side bars of the base, and a plurality of first perforations formed on each connecting pipe, the base The seat also includes a plurality of second through holes formed on each side rod part and respectively corresponding to the first through holes. It is connected to the connecting pipe, and the integrally formed frame body is connected to the front frame.

The rear frame of the motorcycle is characterized in that the base further includes a reinforcing part connected between the tail rod part and the side rod part.

The rear frame of the motorcycle is characterized in that: the lower connecting unit of the integrally formed frame body includes at least one lower connecting piece formed on the bottom surface of the base, and the lower connecting piece can be used to connect a rear shock absorber.

The rear frame of the motorcycle is characterized in that: the upper connecting unit of the integrally formed frame body includes a first upper connecting piece formed on the top surface of the base, and a first upper connecting piece formed on the top surface of the base and connected to the The first upper connecting part is spaced apart from the second upper connecting part, and the first upper connecting part can be used to set a rear handle.

The rear frame of the motorcycle is characterized in that: the upper connecting unit of the integrally formed frame body includes a plurality of first upper connecting parts formed on the top surface of the base, and a plurality of first upper connecting parts formed on the top surface of the base and A second upper connecting piece spaced apart from the first upper connecting piece, the first upper connecting piece can be used to set a rear handle.

The rear frame of the motorcycle is characterized in that it also includes a cross seat bar arranged on the second upper connecting piece of the upper connecting unit, and the cross seat bar can be used for setting a pad lock.

The rear frame of the motorcycle is characterized in that a battery box can be arranged between the reinforced part of the base and the cross seat bar.

The rear frame of the motorcycle is characterized in that the integrally formed frame body is made of aluminum alloy.

The effect of the present invention is that: the base is detachably arranged on the front frame, so as long as the front frame is properly designed, the rear frame of the motorcycle of the present invention can be applied to vehicles of different styles, and has a relatively Good versatility, which can save the cost of mold opening. The one-piece frame body made by casting can not only improve the overall strength but also omit subsequent welding operations to enhance safety and save assembly costs.

【Description of drawings】

Fig. 1 is a perspective view illustrating the rear frame of an existing motorcycle;

Fig. 2 is a perspective view illustrating a preferred embodiment of the rear frame of the motorcycle of the present invention;

Fig. 3 is a cross-sectional view illustrating the cross-sectional appearance along the III-III section line in Fig. 2;

Fig. 4 is a perspective view, assisting in explaining the integrally formed frame body in the preferred embodiment; and

Fig. 5 is a bottom view to assist in explaining Fig. 2 .

21····Front frame

211····connecting pipe

212····first piercing

22····Rear shock absorber

23····Rear handle

24····Seat Cushion Lock

25····Battery

5·····One-piece frame

51····Pedestal

511····Side rod

512····Tail rod

513····Department of Strengthening

514····Second perforation

52····Lower connection unit

521····Lower connector

53····Upper connection unit

531····The first upper connector

532····The second upper connector

6·····cross seat post

7·····Battery box

8·····Bolt

【Detailed ways】

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings.

Referring to FIG. 2 and FIG. 3 , it is a preferred embodiment of the rear frame of the motorcycle of the present invention, and the motorcycle includes a front frame 21 . The front frame 21 includes two connecting pipes 211 spaced apart from each other, and a plurality of first through holes 212 formed on each connecting pipe 211 .

As shown in Figures 2 and 4, the rear frame of the motorcycle of the present invention is arranged behind the front frame 21, and includes an integrally formed frame body 5, a cross seat bar 6, a battery box 7, and a plurality of bolts 8 .

The one-piece frame body 5 includes a base 51 detachably connected to the front frame 21, a lower connection unit 52 formed on the bottom surface of the base 51, and an upper connection unit formed on the top surface of the base 51. Connection unit 53. In particular, in this preferred embodiment, the integrally formed frame body 5 is made of aluminum alloy.

In this preferred embodiment, the base 51 includes two side rod parts 511 connected to the connecting pipe 211 of the front frame 21 at intervals from each other, and a tail rod part connected to the free ends of the side rod parts 511. 512 , a reinforcing portion 513 connected between the tail rod portion 512 and the side rod portion 511 , and a plurality of second through holes 514 formed on each side rod portion 511 . The side bar portion 511 cooperates with the tail bar portion 512 to make the base 51 roughly U-shaped.

Referring to FIG. 3 and FIG. 5 , since the base 51 is made by die-casting, the cross-section of each side rod 511 is generally inverted U-shaped. Of course, casting can also be used, or the production can be carried out by combining casting and forging, and should not be limited to the content disclosed in this preferred embodiment.

Referring to FIG. 2 and FIG. 4 , the lower connection unit 52 includes a plurality of lower connection members 521 formed on the bottom surface of the base 51 (only one is shown in FIG. 4 due to viewing angle). The upper connection unit 53 includes a plurality of first upper connection parts 531 formed on the top surface of the base 51 , and a plurality of second upper connection parts 532 formed on the top surface of the base 51 . In particular, each second upper connecting member 532 is located between two adjacent first upper connecting members 531 . In addition, in this preferred embodiment, the lower connecting member 521 , the first upper connecting member 531 and the second upper connecting member 532 are all described as a plurality. Of course, if the design is appropriate, only one can also be provided, and should not be limited to the content disclosed in this preferred embodiment.

As shown in FIG. 2 , the cross seat bar 6 is disposed on the second upper connecting member 532 of the upper connecting unit 53 . The battery box 7 is disposed between the reinforcing portion 513 of the base 51 and the cross seat bar 6 .

Referring to Figures 2 and 3 together with Figure 5, in the actual assembly, the integrally formed frame body 5 is first produced by die-casting, and then the cross seat bar 6 and the battery box 7 are respectively screwed on the integrally formed frame body 5 on. Then use the bolt 8 , the first through hole 212 , and the second through hole 514 to connect the side bar portion 511 to the corresponding connecting pipe 211 , and then connect the integrally formed frame body 5 to the front frame 21 . Then, the two rear shock absorbers 22 are connected to the lower connecting piece 521; a rear handlebar 23 is arranged on the first upper connecting piece 531; a pad lock 24 is arranged on the cross seat bar 6 On; a battery 25 is set in the battery box 7 . It is particularly noted that, in this preferred embodiment, the integrally formed frame body 5 is described as being arranged on a rear double-gun shock-absorbing vehicle, and of course it can also be used on a rear single-gun shock-absorbing vehicle. The disclosed content of the preferred embodiment is limited.

By the design described above, the rear frame of the motorcycle of the present invention has the following advantages in actual use:

(1) High versatility:

Because the base 51 is detachably arranged on the front frame 21, so as long as the front frame 21 is properly designed, the rear frame of the motorcycle of the present invention can be applied to vehicles of different styles, and has better versatility. Usability, but also can save the cost of mold opening.

(2) High overall strength:

Because the integrally formed frame body 5 made by casting can enhance the overall strength, so as to enhance the safety of the vehicle in use. Avoid the accident that the welding point breaks due to the vibration when the vehicle is moving back to the lower connecting member 521 through the rear shock absorber 22 .

(3) Avoid deformation:

Based on the above, the integrally formed frame body 5 made by casting can avoid deformation of the vehicle frame due to high temperature generated by subsequent welding, and prevent subsequent assembly operations from proceeding smoothly.

(4) Low assembly cost:

Based on the above, since the integrally formed frame body 5 can omit the subsequent welding operation and improve the smoothness of the assembly operation, it can greatly reduce the subsequent assembly cost and increase the speed of the assembly operation.

In summary, the rear frame of the motorcycle of the present invention is detachably arranged on the front frame 21, so as long as the front frame 21 is properly designed, the rear frame of the motorcycle of the present invention can be applied to different styles vehicles, and has better versatility, which can save the cost of mold opening. The integrally formed frame body 5 made by casting can not only improve the overall strength but also omit subsequent welding operations to enhance safety and save assembly costs, so the purpose of the present invention can indeed be achieved.

The above is only a preferred embodiment of the present invention, and should not limit the scope of the present invention, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention are still the same. It is within the scope covered by the patent of the present invention.

Claims (9)

1. the Rear frame of a motor bike, this motor bike comprises a front vehicle frame, this Rear frame is arranged at this front vehicle frame rear, Qi Te levies this Rear frame of Yu ︰ and comprises an one-body molded support body, this one-body molded support body comprises one and is detachably connected to pedestal in this front vehicle frame, the one lower linkage unit being formed at this base bottom surface, and the upper linkage unit that is formed at this base top surface, this pedestal comprises the side lever portion that two are connected to this front vehicle frame spaced apartly, and the foot piece portion that is connected to described side lever portion free end, described side lever portion matches with this foot piece portion and makes this pedestal U-shaped.

2. the Rear frame of motor bike as claimed in claim 1, its spy levies and is comprising two in this front vehicle frame of ︰ in order to connect the connection pipe in the side lever portion of this pedestal, and multiple the first perforation be formed on each connection pipe, this pedestal also comprises multiple being formed in each side lever portion and the second perforation of corresponding described first perforation respectively, described side lever portion is arranged in the first corresponding perforation and the second perforation respectively with multiple bolt and is connected on described connection pipe, and this one-body molded support body is connected in this front vehicle frame.

3. the Rear frame of motor bike as claimed in claim 2, Qi Te levies this pedestal of Yu ︰ and also comprises one and be connected to strengthening section between this foot piece portion and described side lever portion.

4. the Rear frame of motor bike as claimed in claim 1, the lower linkage unit that Qi Te levies this one-body molded support body of Yu ︰ comprises at least one lower attaching parts being formed at this base bottom surface, and this lower attaching parts can in order to shock absorbing apparatus after connecting.

5. the Rear frame of motor bike as claimed in claim 1, the upper linkage unit that Qi Te levies this one-body molded support body of Yu ︰ comprises the first upper connector that is formed at this base top surface, and one be formed at this base top surface and with this first upper connector the second upper connector separately, this first upper connector can in order to arrange handle after.

6. the Rear frame of motor bike as claimed in claim 1, the upper linkage unit that Qi Te levies this one-body molded support body of Yu ︰ comprises multiple the first upper connector being formed at this base top surface, and multiple be formed at this base top surface and with described first upper connector the second upper connector separately, described first upper connector can in order to arrange handle after.

7. the Rear frame of motor bike as claimed in claim 6, Qi Te levies Yu ︰ and also comprises one and be arranged at horizontal seat bar on the second upper connector of linkage unit on this, and this horizontal seat bar can in order to arrange a cushion lock.

8. the Rear frame of motor bike as claimed in claim 7, Qi Te levies between the strengthening section of this pedestal of Yu ︰ and this horizontal seat bar can arrange a battery case.

9. the Rear frame of motor bike as claimed in claim 1, it is being make with aluminum alloy in this one-body molded support body of ︰ that its spy levies.