TWI655131B - Frame combination device - Google Patents

Abstract

A frame combining device is suitable for connecting a front frame body made of steel and a rear frame body made of aluminum alloy. The frame combining device includes a lower lining frame disposed between the front frame body and the rear frame body, and an upper lining frame connected to the front frame body and the lower lining frame. The upper lining frame includes a front lap member overlapping the front frame body, and a rear lap member extending backward from the front lap member and overlapping the lower lining frame. With the frame coupling device, the front frame body and the rear frame body made of two materials can be surely connected to form an integrated ideal frame.

Description

Frame combination device

The invention relates to a connecting device, in particular to a vehicle frame combining device.

Referring to FIG. 1, a conventional locomotive frame 11 is suitable for carrying an engine (not shown in the figure). The locomotive frame 11 is made of steel pipe welding, although the material and manufacturing process cost It is relatively low, but has the disadvantages of heavier weight and poorer rigidity.

Referring to FIG. 2, another conventional locomotive frame 12 is also suitable for bearing an engine. However, the locomotive frame 12 is made of aluminum alloy material, and is generally used for vehicles with a higher unit price. And because the material of the locomotive frame 12 is aluminum alloy, compared with the locomotive frame 11 shown in FIG. 1, it has the advantages of relatively light weight and good rigidity, but it also generates costs. Higher disadvantages.

Based on the advantages and disadvantages of using steel pipe welding and aluminum alloy respectively, if it is desired that the manufactured frame can achieve a balance between the advantages and disadvantages described above, two materials of steel pipe and aluminum alloy must be used at the same time. However, due to the different potentials of the steel and aluminum alloy materials, if the two materials are directly connected by welding, the disadvantage of easy welding of the welding place due to the potential difference will result in weak overall rigidity and service life. Shorter question. Therefore, how to properly connect two materials to make an ideal frame has become one of the important topics for those in related fields.

Therefore, an object of the present invention is to provide a frame coupling device capable of reliably connecting two materials to form an ideal frame.

Therefore, the frame combining device of the present invention is suitable for connecting a front frame body made of steel and a rear frame body made of aluminum alloy. The front frame body includes a front frame to be connected with an end surface. And the rear frame body includes a rear to-be-connected member having an engaging surface. The frame coupling device includes a lower lining frame disposed between the front to-be-connected component and the rear to-be-connected component, and an upper lining frame connected to the front frame body and the lower lining frame.

The front frame body and the rear frame body can be connected by the lower lining frame, without the need to directly weld two materials, so the disadvantage of easy corrosion of the welding place due to the difference in potential between the materials can be avoided. .

The upper lining frame includes a front lap member overlapping the front frame body, and a rear lap member extending backward from the front lap member and overlapping the lower lining frame. By designing the front lap member and the rear lap member, the rigidity of the upper lining frame itself can be used to reinforce the mechanical strength of the combination between the lower lining frame and the front frame body.

The effect of the invention is that the front frame body and the rear frame body made of two materials can be effectively connected by the frame coupling device to form an integrated ideal frame.

2‧‧‧ frame combination device

200‧‧‧ space

201‧‧‧Through Hole

202‧‧‧ Positioning hole

21‧‧‧ under lining

211‧‧‧Terminal

212‧‧‧ abutment

22‧‧‧ Upper lining frame

221‧‧‧Front Overlap

222‧‧‧After the overlap

223‧‧‧ Connected

23‧‧‧Connecting unit

231‧‧‧Lock Firmware

232‧‧‧nut

3‧‧‧ front frame body

31‧‧‧ Before waiting

311‧‧‧face

32‧‧‧ Upper tube

33‧‧‧ down tube

34‧‧‧ head tube

4‧‧‧ rear frame body

41‧‧‧ after waiting

411‧‧‧Interface

412‧‧‧Positioning post

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a side view illustrating a conventional motorcycle frame; FIG. 2 is a side view illustrating another A conventional locomotive frame; FIG. 3 is a side view illustrating an embodiment of the frame coupling device of the present invention; FIG. 4 is a side exploded view illustrating a connection unit of the embodiment; and FIG. 5 is a sectional view Describes the assembly of this embodiment.

Referring to FIG. 3, an embodiment of the frame combining device 2 of the present invention is suitable for connecting a front frame body 3 made of steel and a rear frame body 4 made of aluminum alloy. 3 and FIG. 4 at the same time, the front frame body 3 includes a front to-be-connected member 31 having an end surface 311, an upper tube 32 abutting above the front to-be-connected member 31, and a front to-be-connected member. The lower pipe 33 below the member 31 and a head pipe 34 connected between the upper pipe 32 and the lower pipe 33 and located relatively forward, the front to-be-connected member 31 extends rearward along the extension direction of the upper pipe 32 . The rear frame body 4 includes a rear to-be-connected member 41 located at the front end and extending forward. The rear to-be-connected member 41 has a connecting surface 411 and a positioning post 412 disposed on the connecting surface 411. Wherein, the engaging surface 411 of the rear to-be-connected member 41 is inclined downward and extends forward. This embodiment includes a lower lining frame 21 disposed between the front to-be-received member 31 and the rear to-be-received member 41, an upper pipe 32 connected to the front frame body 3, and an upper lining of the lower lining frame 21. A frame 22 and a connecting unit 23 for connecting the lower lining frame 21 to the to-be-connected member 41 behind the rear frame body 4.

Referring to FIGS. 4 and 5, the lower lining frame 21 includes a termination piece 211 terminated at an end surface 311 of the front to-be-connected piece 31, and a bent portion extending from the termination piece 211 and connected to the back-to-be-waited piece. The abutting member 212 of the connecting surface 411 of the connecting member 41. The abutting member 212 has two through holes 201 spaced in a direction away from the terminating member 211 and a through hole 201, and a positioning hole 202 corresponding to the positioning post 412 and matching the shape of the positioning post 412. By the positional correspondence between the positioning post 412 of the rear to-be-connected member 41 and the positioning hole 202 of the abutting member 212, it can be ensured that the lining frame 21 in the embodiment is in the correct position with the rear frame body 4 The connector 41 is connected. It should be particularly noted that, with regard to the type of the positioning post 412 and the positioning hole 202, as long as they can be connected to each other by a shape matching each other, the positioning effect is achieved, and is not limited to the convexity described in this embodiment. Column and hole type.

Wherein, the end piece 211 of the lower lining frame 21 is terminated to the end surface 311 of the front to-be-connected piece 31 by welding, and the angle at which the abutment piece 212 of the lower lining frame 21 is bent from the end piece 211. Is the engaging surface 411 of the rear to-be-connected member 41. The connecting unit 23 includes a plurality of abutment members 212 and a rear fastener 222 penetrating through the lower lining frame 21, and a plurality of nut 232 for fixing the aforesaid fastener members 231.

The upper lining 22 includes a front lap 221 overlapping the tube 32 on the front frame body 3, and a rear extension 221 extending from the front lap 221 and overlapping the abutment of the lower lining 21. The rear lap member 222 of the connector 212. The rear overlapping member 222 has two positions corresponding to the through holes 201 respectively, and each of the connecting pipes 223 surrounds a space 200. The upper lining frame 22 is connected to the front to-be-connected part 31 of the front frame body 3 and the lower lining frame 21 by welding. Where the above The front lap member 221 of the lining 22 and the front to-be-connected member 31 of the front frame body 3 are welded to each other, and the rear lap member 222 and the abutment 212 of the lower lining 21 are welded to each other. The position where the front lapping member 221 overlaps the front frame body 3 is located in front of the position where the end piece 211 of the lower lining 21 is connected to the front frame body 3. With the design of the front lap member 221 and the rear lap member 222, the rigidity of the upper lining frame 22 itself can be used to reinforce the mechanical strength of the combination between the lower lining frame 21 and the front frame body 3.

The front frame body 3 and the rear frame body 4 can be connected by the lower lining frame 21, and when the rear frame body 4 is assembled, two locking members 231 are passed through the connecting pipes 223, respectively. The enclosed space 200 passes through the through hole 201 of the abutment member 212 of the lower lining frame 21, and is then locked to the rear to-be-connected member 41 of the rear frame body 4. Then, the nuts are used By fixing the lock members 231 by 232, the front frame body 3 and the rear frame body 4 can be surely connected. With the design of the connecting pipes 223, the locks 231 can be guided by the space 200 surrounded by them, so that the locks 231 can be quickly and surely passed through and locked in the correct position to improve the assembly s efficiency. And the front frame body 3 and the rear frame body 4 are connected by the above-mentioned connection method, that is, the method of directly welding two materials is not required, so that the welding place caused by the potential difference between the materials can be easily rusted. Shortcomings. In addition, since the rear frame body 4 is located relatively above the front frame body 3 in actual use, a moment is generated relative to the front frame body 3 when carrying a weight. With the bent shape of the abutting member 212 relative to the terminating member 211 and the inclined engaging surface 411 abutting against the rear to-be-connected member 41, the moment can be supported, To ensure that the front frame body 3 and the rear frame body 4 Connection strength.

Referring to FIG. 4 and FIG. 3, since the front frame body 3 made of steel material has the advantages of heavy weight and good stability, it is suitable for carrying, for example, engines and transmission cases (not shown in the figure) ) And other important parts, and can produce stable mechanical balance by its own weight. The rear frame body 4 made of aluminum alloy has the advantages of light weight and better rigidity. When it is arranged relatively rearward of the front frame body 3, it is less likely to generate excessive torque due to its own weight. , Can maintain the mechanical balance and stability of the entire frame. With this embodiment, the advantages and disadvantages of steel material and aluminum alloy material can be balanced at the same time. The front frame body 3 and the rear frame body 4 respectively made of two materials are surely combined to form a simultaneous An ideal frame with the advantages of two materials.

In summary, with this embodiment, the front frame body 3 and the rear frame body 4 made of two materials can be effectively connected, and the disadvantages caused by welding the two materials can be avoided. In order to constitute an ideal frame that is integrated and achieves a balance between the advantages and disadvantages of the two materials, it can indeed achieve the purpose of cost invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (9)

A frame coupling device is suitable for connecting a front frame body made of steel and a rear frame body made of aluminum alloy. The front frame body includes a front to-be-connected piece having an end surface, a The upper tube abuts above the front to-be-connected piece, a lower tube connected to the lower-to-be-connected piece, and a head tube connected between the upper and lower tubes and located relatively forward, the front-stand The connecting piece extends rearward along the extension direction of the upper tube, and the rear frame body includes a rear to-be-connected member having an engaging surface. The frame coupling device includes a lower lining frame disposed on the front to-be-connected member. And the back-to-be-connected part, including a termination piece terminating at the end surface of the front-to-be-connected part, and a bending and extending from the termination part, and connected to the interface of the back-to-be-connected part An abutment piece; and an upper lining frame connected to the front frame body and the lower lining frame, and including a front overlap piece overlapping the front frame body, and a rear extension extending from the front overlap piece And is overlapped with the rear overlap piece of the lower lining frame, and the front overlap piece of the upper lining frame is overlapped with the upper tube of the front frame body. The frame coupling device according to claim 1, further comprising a connecting unit for connecting the lower lining frame to a rear to-be-connected part of the rear frame body, and including a plurality of penetrating through the lower lining frame. The fasteners of the abutment piece and the rear overlap piece, and a plurality of nuts for fixing the fasteners respectively. The frame coupling device according to claim 2, wherein the abutment piece of the lower lining frame has two through holes that are spaced apart in a direction away from the terminal piece, and the rear lap of the upper lining frame is overlapped. The piece has two positions respectively corresponding to the through holes, and each of the connecting pipes which surrounds a space, and the locking members pass through the spaces and then pass through the through holes to be fixed to the rear frame body. According to the frame coupling device described in claim 1, the rear to-be-connected part of the rear frame body further has a positioning post provided on the engaging surface, wherein the abutment of the lower lining frame has a position corresponding to The positioning post has a positioning hole matching the positioning post. The frame coupling device according to claim 1, wherein the upper lining frame is connected to the front to-be-connected part of the front frame body and the lower lining frame by welding. The frame coupling device according to claim 5, wherein the front overlapping member of the upper lining frame and the front to-be-connected member of the front frame body are welded to each other, and the rear overlapping member is in contact with the lower lining frame. The joints are welded to each other. The frame coupling device according to claim 1, wherein the end piece of the lower lining frame is welded to the end face of the front to-be-connected piece. The frame coupling device according to claim 1, wherein the position where the front lap member of the upper lining overlaps the front frame body is a connection between the end piece of the lower lining frame and the front frame body. Relative to the front. According to the frame coupling device described in claim 1, the engagement surface of the rear to-be-connected piece is inclined downward and extends forward, wherein the angle at which the abutment of the lower lining frame is bent from the end piece is Match the interface of the back-to-be-connected piece.