CN2243431Y

CN2243431Y - Simple and solid handlebar and front fork

Info

Publication number: CN2243431Y
Application number: CN 95224547
Authority: CN
Inventors: 张善沐
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-25
Filing date: 1995-10-25
Publication date: 1996-12-25
Anticipated expiration: 2005-10-25

Abstract

The utility model relates to a simple and firm handle and front fork component for bicycles. A handle and a front fork are made into a whole. The utility model is composed of a pair of vertical tubes, two shaft bowls, a vertical shaft and a connecting device. The lower ends of the two vertical tubes are connected with the wheel shaft of the front wheel of a bicycle. The upper ends of the vertical tubes are separated towards both sides to form the handle. The vertical shaft which is a strip-shaped round steel bar is clamped between the two vertical tubes, and the upper and the lower ends of the vertical shaft are respectively arranged transversely in the grooves with rolling beads of the upper and the lower shaft bowls fixed in the middle of the vertical tubes. The vertical shaft is one part of a bicycle frame, and the vertical shaft is combined with a rod component behind the vertical shaft into the bicycle frame. Because the handle and the front fork are combined into a whole, the utility model has the advantages of simple structure, firmness and high durability.

Description

The bicycle handle bar of simple rigid and front fork parts

The utility model relates to the bicycle handle bar and the front fork parts of a kind of basic element of character of bicycle, particularly simple rigid.

Existing bicycle handle bar and front fork parts, used part is many, complex structure, production process is many, and cost height, and welding between fork leg and vertical rod so because of torsional forces effect metal fatigue or when being subjected to clashing into, rupture easily, causes fatal accident; For safety, people have at bicycle front fork bar place and add fork guard, and this makes front fork structure complicated more, strengthens cost and weight, and so maintenance inconvenience is very undesirable.

The purpose of this utility model is bicycle handle bar and the front fork parts that a kind of simple rigid will be provided, and it is simple in structure, and part is few, and handling ease is sturdy and durable, and cost is low, and maintenance is easy to assembly.

The purpose of this utility model is to realize like this; The bicycle handle bar of this simple rigid and front fork parts, be that handlebar and two parts of front fork are made an integral body, constituted by a pair of standpipe, two axle bowls, vertical shaft and connecting devices, the lower end of two standpipes is connected with bicycle front-wheel wheel shaft, the standpipe upper end separates to both sides, form handlebar, vertical shaft is a bar shaped round steel, be clipped in the middle of two standpipes, its up and down two ends crouch respectively in the middle of being fixed on standpipe on the lower shaft bowl contain in the groove of ball, vertical shaft is the part of vehicle frame, constitutes vehicle frame with the rear rod member.

Advantage of the present utility model:

1, simple in structure, sturdy and durable, it is safe in utilization: because of the utility model handlebar and front fork one mainly are made of a pair of person in charge, accompany vertical shaft in the middle of the standpipe, and fuse with bolt and axle bowl, be equivalent to a fork guard, but simple in structure, sturdy and durable, frangibility not, safe in utilization, structurally, though the handlebar altitude hold is constant, but if handlebar is determined suitably height according to vehicle, common people's both hands by bike can in very large range adapt with it fully, need not adjust, thereby this structure then can be removed troubles such as lift car handle and adjustment brake from.

2, rotate flexibly, easy to use, maintenance easily: in vertical shaft upper and lower side axle bowl, be provided with ball, and part is few.

3, applied widely:, all applicable as bicycle, three-wheel vehicle, carriage for children because of all have the unpowered vehicle of front fork.

The utility model concrete structure is provided by following examples and accompanying drawing thereof:

Fig. 1 is the utility model embodiment one structural representation (vertical shaft is not shown).

Fig. 2 is the utility model embodiment two structural representations (vertical shaft is not shown).

Fig. 3 is the used axle bowl of a utility model front view.

Fig. 4 is the birds-eye view of Fig. 3.

Fig. 5 is the utility model embodiment one assembling trailing portion cutaway view.

Describe in detail below in conjunction with accompanying drawing.

With reference to Fig. 1,3,4,5, embodiment 1 of the present utility model, wherein two parts of handlebar and front fork are made an integral body, by a pair of standpipe, two axle bowls, vertical shaft and connecting device constitute, wherein, two standpipes 1 are stretched under the parallel longitudinal, and the lower end is connected with bicycle front-wheel wheel shaft, 1 of the standpipe in upper end adds pipe link 2, standpipe 1 upper end separates to both sides, forms handlebar, and vertical shaft 7 is a bar shaped round steel, be clipped in the middle of two standpipes 1, the two ends of vertical shaft 7 relative with two grooves that are fixed on standpipe 1 middle part respectively on,

lower shaft bowl

3,4 are interlocked, and wherein, lower shaft bowl 4 directly is weldingly fixed on the standpipe 1,3 in last axle bowl is fixing with the bolt 5 that passes standpipe 1 above it, ball 8 is clipped in axle bowl 3 respectively, 4 and the two ends of vertical shaft 7 between, 7 on this vertical shaft is the part of vehicle frame, constitutes vehicle frame with the rear rod member.Bolt 5 is used for reinforcing at the middle part on the one hand standpipe among Fig. 5, is on the other hand to prevent from that axle bowls 3 from moving up to come off.

During the utility model assembling, earlier the standpipe 1 of pair of curved moulding is reserved the position, the connection pipe 2 of burn-oning, weld lower shaft bowl 4 in the middle, put into butter, ball 8, vertical shaft 7 lower ends are inserted in the lower shaft bowl 4, a bowl 3 of going up of butter, ball 8 will be housed again, 1 upper end open place slides from standpipe, and the rim of a bowl is enclosed within the upper end of vertical shaft 7, loads onto bolt 5 at last.

With reference to Fig. 2, the utility model embodiment two and embodiment one are basic identical, and just in the upper end of standpipe 1, welding is flat transverse tube 9 in addition, and saves connection pipe 2.

In addition, for strengthening bearing capacity of the present utility model, except that the intensity that increases standpipe 1 itself, also can be provided with the bolt 6 of strengthening standpipe 1 bearing force and passing standpipe 1 below lower shaft bowl 4, as shown in Figure 2, or other clamps the clamping plate of two standpipes 1.

Claims

1, a kind of bicycle handle bar of simple rigid and front fork parts, constituted by handlebar and coupled front fork parts, it is characterized in that two parts of handlebar and front fork make an integral body, by a pair of standpipe, two axle bowls, vertical shaft and connecting device constitute, wherein, two standpipes (1), stretch under the parallel longitudinal, the lower end is connected with bicycle front-wheel wheel shaft, add pipe link (2) between upper end standpipe (1), standpipe (1) upper end separates to both sides, forms handlebar, and vertical shaft (7) is a bar shaped round steel, be clipped in the middle of two standpipes (1), the two ends of vertical shaft (7) relative with two grooves that are fixed on standpipe (1) middle part respectively on, lower shaft bowl (3), (4) be interlocked, wherein, lower shaft bowl (4) directly is weldingly fixed on the standpipe (1), last axle bowl (3) is then fixing with the bolt (5) that passes standpipe (1) above it, ball (8) is clipped in axle bowl (3) respectively, (4) and between the two ends of vertical shaft (7), this vertical shaft (7) then is the part of vehicle frame, constitutes vehicle frame with the rear rod member.

2,, it is characterized in that be provided with the bolt (6) of strengthening standpipe (1) bearing force and passing standpipe (1), or other clamping the clamping plate of two standpipes (1) in lower shaft bowl (4) below by the bicycle handle bar and the front fork parts of the described simple rigid of claim 1.