JP2710496B2 - How to make a basket for bicycles - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a bicycle and a bicycle which can be used both as an infant and a luggage. The present invention relates to a method of manufacturing a bicycle-luggage-combined car that can be used as an infant or a luggage. 2. Description of the Related Art A conventional bicycle of this type, which is also used as an infant luggage for bicycles, is disclosed in Japanese Patent No. 64318, Japanese Utility Model Publication No. 58-33.
017 can be mentioned. [0003] The car for children's luggage for bicycles described in the above publication has another wire rod arranged in parallel on the front, rear, left and right and at the bottom of a square pillar-shaped frame made of a wire rod. It is integrally formed in the shape of a rectangular box by being fixed by being fixed, and it is possible to put luggage as a storage therein or to carry an infant therein. Further, in the patent gazette, Japanese Patent Publication No. 53-148
No. 21, JP-A-61-76784 discloses a technique. In the above-mentioned Japanese Patent Publication No. 53-14821,
A member consisting of a bottom wall plate constituting the cage body and a one-side wall plate constituting the peripheral side wall of the cage body, a face wall plate symmetrical to the one-side wall plate constituting the peripheral side wall of the cage body, and adjacent other surface wall plates on both sides thereof And a member integrally formed with a metal wire, and after coating the member with a synthetic resin, the two members are integrated and connected to form a bicycle cage body. In Japanese Utility Model Laid-Open Publication No. 61-76784, the bottom of a box having an upper part and a first side part opened is extended to form an overhang, and the end of the overhang is formed. An upright holder is provided, and a holding portion that can be gripped by an infant is provided at the upper end of the holding body, and a pivotal support is provided at opposing second and third sides of the box. Discloses a bicycle luggage / combination car in which a substantially U-shaped moving body is pivotally mounted, and the moving body can be rotated to be used as a baby chair. [0007] A conventional car that also serves as an infant luggage for a bicycle is disclosed in the above-mentioned Japanese Patent No. 64318, Japanese Patent Publication No. Sho-5.
As disclosed in Japanese Patent Application Laid-Open No. 3-14821 and Japanese Utility Model Application Laid-Open No. 61-76784, a plane formed by arranging wires in parallel was formed, thereby forming a car for both bicycle and infant luggage. A gap extending in the direction was formed. Although the width of the gap between the wire rods is relatively large, there is no particular problem when an infant or a large object is placed on an infant luggage basket. However, when a small or long luggage is placed, the luggage may fall from a gap between the wires. Further, as disclosed in Japanese Utility Model Laid-Open Publication No. 61-76784, when a bicycle-combined car is formed by a box made of a flat plate, the air resistance increases, and the stability of the bicycle when crosswind is received. Will decrease. In addition, when a car is used to form a car that also serves as an infant luggage for bicycles, the design of the bicycle itself is a shaped body centered on the line, and if a flat plate is attached to it, the harmony of the overall design is lost and the design is not desirable. . And, as described in Japanese Utility Model Application Laid-Open No. 61-76784, even if a baby car for bicycles is formed of a flat plate, there is a gap with the moving part, and the user has a gap between the wires. There is a possibility that small luggage or slender luggage may fall down while giving a sense of security that there is no gap. Further, as described in the above-mentioned Japanese Utility Model Application Laid-Open No. 61-76784, in order to form a car for children's luggage for bicycles with a box made of a flat plate, even if wood or synthetic resin is used, Material cost is expensive, and it is difficult to reduce the waste of material and use it efficiently,
In particular, in order to perform the entire injection molding with a synthetic resin, the mold and the injection molding machine become large, the production cost becomes high, and
In terms of structural mechanics, it is not always possible to process the illustrated simple shape. In order to cover the front, back, left, right and bottom of the frame, as shown in FIG. 8, one square plate-shaped net material A is cut into a substantially T-shaped plane, and this is cut into a frame. A method of folding and using it according to the shape is conceivable. However, in this case, a special cutting die is required to cut the corner B of the net, and a large amount of residual material C is generated.
The raw material costs and, consequently, the manufacturing costs are high,
It is not preferable from the viewpoint of material cost and waste. Therefore, the present invention can reduce the risk of falling even if the contents are small, and can be mounted on a bicycle without impairing the overall design, and the manufacturing cost of the bicycle luggage is low. An object of the present invention is to provide a method for manufacturing a dual-purpose car. According to the present invention, there is provided a method for manufacturing an infant car with a bicycle, which comprises a front frame disposed on a front side of a bicycle carrier and a bottom frame secured to the bicycle carrier. Forming a substantially rectangular front bottom net formed on the front frame portion and the bottom frame portion formed integrally with the front frame portion and the bottom frame portion; and A frame portion and both side frame portions located on the left and right sides of the loading platform which are continuous with the rear frame portion are integrally formed, and the rear frame portion and the both side frame portions formed integrally therewith are substantially formed already. A step of stretching a rectangular rear net, and the step of stretching the front frame portion and the both side frame portions.
With the release portion formed with an interval therebetween, the bottom frame portion
And the rear frame portion and the side frame portions.
To stretch the already formed substantially rectangular front bottom net.
The front frame and the bottom frame formed in the process,
Formed in the process of stretching the formed substantially rectangular rear net
And a step of integrating the rear frame portion and the side frame portions with each other to produce a car for both bicycles and infant luggage. According to the present invention, a substantially rectangular front bottom net is stretched over the front frame portion arranged on the front side of the bed of the bicycle and the bottom frame fixed to the bed. A substantially rectangular rear net is stretched over a rear frame portion located on the rear side of the loading platform, and both side frame portions located on the left and right sides of the loading platform. Thus, the substantially rectangular front bottom net and the substantially rectangular rear net can cut the net material without waste, and can prevent the fall of the stored material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment embodying a method of manufacturing a car for use as a child luggage for bicycles according to the present invention will be described below. <First Embodiment> FIGS. 1 to 3 show a bicycle / luggage car manufactured by the method for manufacturing a bicycle / luggage car according to a first embodiment of the present invention. FIG. 1 shows a bicycle. FIG. 2 is an exploded perspective view of the entire basket for infant luggage, FIG. 2 is an enlarged perspective view of the main body, and FIG.
FIG. 4 is an enlarged perspective view of a cushion member and a foot rest member, and FIG. 4 is an enlarged perspective view of an opening / closing frame. FIG. 5 is a front view of a net of a front bottom net, and FIG. 6 is a front view of a net of a rear net. In FIG. 1, a bottom frame 1 made of a metal wire is bent and formed in a U-shape on the bottom surface of a basket for children's luggage for bicycles, and a front end of the bottom frame 1 is formed substantially at a right angle. It is bent and extends upward. A front frame 2 is integrally formed at the upper end of the bent portion of the bottom frame 1, and a first horizontal line member 4 is provided horizontally between the upper portions of the front frame 2. In a portion surrounded by the first horizontal line member 4, the front frame portion 2 and the bottom frame portion 1, a front bottom net 6 made of a single metal bent and formed in a substantially L-shaped cross section is stretched. The front frame 2, the bottom frame 1, and the front net 6 constitute a front bottom frame 7. A second horizontal line member 5 is provided horizontally between the front portions of the bottom frame 1. In this embodiment, 2.5 mm of a commercially available wire mesh in which each piece is standardized as the front bottom mesh 6 is used.
Those having a rhombic mesh of cm are used. Front frame 2
A handlebar 3 is disposed at the upper end of the bicycle, and when an infant is placed on the bicycle luggage car, the infant can grasp the handlebar 3 and maintain the stability of the body. A pair of fixing plates 8 are provided laterally at predetermined positions of the bottom frame 1 behind the second horizontal line member 5, and a bicycle / bag for bicycles, which is not shown, is mounted on the bicycle via a mounting plate 9. It can be fixed to the bed. That is, the fixing plate 8 and the mounting plate 9 are provided with through holes 10 at corresponding positions, and the fixing plate 8 and the mounting plate 9 are arranged on the upper side of the loading platform and the mounting plate 9 on the lower side. Screw 11 and nut 12
The bicycle is fixed to the luggage carrier by being tightened. On the other hand, the substantially rectangular annular wire material suspended from the bottom frame portion 1 has a substantially U-shape at both ends at the lower end of a first wire member 18 which is bent rearward substantially at the center. Two wire member 1
9 is fixed at the front end. And the first wire member 1
The left frame portion 13, the right frame portion 14, and the rear frame portion 15 are constituted by the second wire member 8 and the second line member 19. Frame parts 13 on both sides,
In a portion of the frame surrounded by the rear frame portion 14 and 14, a single rear net 16 bent in a U-shaped cross section is stretched,
The rear part and both side parts of the bicycle dual-purpose car basket constitute a support for supporting the stored items. These rear frames 1
5, the rear frame 1 by the both frame portions 13, 14 and the rear net 16;
7 are configured. The rear side network 16 is the same as the front side network 6. A third horizontal line member 20 is provided between the rear portions of the second line members 19. In addition, between the left and right sides of the front bottom frame 7 and the front part of the rear side frame 17, the third horizontal line member 20 and the third horizontal line member 20 are provided with an opening 25 having a width equal to or larger than an interval where infants' thighs can easily enter. The first wire member 18 is welded to the lower surface of the front bottom frame 7. Thereby, the rear frame 17 is attached to the front bottom frame 7.
The space surrounded by the rear frame 17 and the front bottom frame 7 constitutes an accommodation space for accommodating the contents. An opening / closing frame 24 is rotatably supported by a bracket 26 attached to an intermediate portion of the bottom frame 1 via a pin 27, and the opening 25 can be shielded on the left and right sides of the opening / closing frame 24. An opening / closing net 28 of various dimensions is stretched. In addition,
The extension of the opening / closing net 28 is performed by a step of extending the opening / closing net 28 to an opening / closing frame 24 in which an open portion between the front frame portion 2 and the both side frame portions 13 and 14 is freely opened / closed. Done. When an infant is placed on the bicycle luggage basket of this embodiment, the opening / closing frame 24 is disposed and accommodated in the rear frame 17 so that the opening 25 is opened. When the luggage is stored in the infant luggage car, the opening / closing frame 24 is pivotally disposed on the front frame 2 side to shield the opening 25. A safety belt 21 is attached to the first wire member 18 so as to prevent the infant from dropping off from the bicycle infant luggage car of this embodiment when the infant is put on the infant luggage car. Has become. Note that a cushion member 22 can be arranged inside the car for both bicycle and infant luggage, and the upper hook 23 of the cushion member 22 is fixed to the mesh of the rear net 16 so that the cushion member 22 can be placed in the infant luggage. It is configured to be fixed at a predetermined position in the dual-purpose car. A mounting member 2 fixed to the front end of the bottom frame 1
9, one upper end of the footrest member 30 is attached via a screw 33 and a nut 34, and the other upper end of the footrest member 30 is bent and hooked on the bottom frame 1. The lower end of the footrest member 30 is bent outward so that the infant's foot can be placed on the bent portion. A horizontally long protective frame 31 on which a protective net 32 is stretched is attached to the side surface of the foot rest member 30 to prevent the foot of the infant from being caught in the rear wheel of the bicycle. Next, the cutting of the front bottom net 6 and the rear net 16 in the method of manufacturing the car for children's luggage according to the present embodiment configured as described above will be described. In this embodiment, the front bottom frame 7 and the rear frame 1
7 are formed separately from each other, and a front bottom net 6 and a rear side net 16 are respectively stretched. In order to form the front bottom net 6, as shown in FIG. 5, one portion of a net X formed by cutting a net material into a substantially rectangular shape (at the boundary between the bottom frame portion 1 and the front frame portion 2). Corresponding part)
Is bent into an L shape, which is joined by spot welding or the like. In order to form the rear net 16, as shown in FIG. 6, the net material is cut into a substantially rectangular shape, and the left and right upper ends are cut obliquely.
A portion (a portion corresponding to a boundary portion between the side frame portions 13 and 14 and the rear frame portion 15) is bent to have a U-shape, which is joined by spot welding or the like. That is, a front frame portion 2 arranged on the front side of the bicycle carrier and a bottom frame portion 1 fixed to the carrier are integrally formed, and a substantially rectangular front bottom net 6 is stretched over them. And integrally forming a rear frame portion 15 located on the rear side of the loading platform and both side frame portions 13 and 14 located on the left and right sides of the loading platform continuously with the rear frame portion 15. Stretching the substantially rectangular rear net 16. As shown in FIGS. 5 and 6, a net X and a net Y obtained by cutting a net material into a substantially rectangular shape are obtained by further cutting a bending point or the like to form a plurality of sheets. Bottom net 6, rear net 1
6 may be used. However, it is possible to reduce the number of spot welding spots by bending one portion of the net shape X to be L-shaped and joining two portions of the net shape Y to be bent into a U shape, Good productivity. However, in the case of a plurality of divisions, it is possible to perform cutting without waste depending on the size of a single square plate-like net material. Next, the use of the car for children's luggage of the present embodiment manufactured as described above will be described. When the bicycle luggage car of this embodiment having this kind of construction is used as a luggage compartment, the opening / closing frame 24 is folded down toward the front frame 2 to shield the opening 25. When the infant is to be placed on the car for children's luggage, the opening / closing frame 24 is moved down to the rear frame 15 to open the opening 25 and the cushion member 22 is set in the rear frame 17. Next, the infant is seated on this infant luggage-combined basket, and its feet are put out of the opening 25 and placed on the foot rest member 30. Then, the safety belt 21 is fastened in front of the infant's body, and the infant is gripped. Grab stick 3. As described above, according to the method of manufacturing a car for both bicycles and infants of the above-described embodiment, the front bottom frame 7 and the rear side frame 17 are separately formed and then integrated. The net X and the net Y for the rear net 16 can be cut and formed separately. Therefore, the net X and the net Y can be cut straight without any corners, and no special cutting die is required for cutting them. Further, only a very small amount of the remaining material y is generated in the cutting of the meshes X and Y, and the raw materials that are discarded and wasted when cutting the mesh are minimized. Therefore, even when a net is used as a support for the stored items, the cost of raw materials and the production cost in the production of the car for children's luggage for bicycles are low. In addition, the bicycle / bicycle luggage car manufactured in the above embodiment uses the front net 6 and the rear net 16 having small diamond-shaped meshes as the support for the stored items and the fall prevention. . Therefore, unlike a conventional bicycle / luggage car for bicycles, there is no gap extending in one direction between wires, and even when a small or slender luggage is stored,
It is less likely that they will fall from the meshes of the front bottom net 6 and the rear net 16. When the car for a bicycle for infants and luggage manufactured in the above embodiment is used as a luggage compartment, the open portion 25 is shielded by the opening / closing net 28, so that the stored luggage is also used for the bicycle for infants and luggage. There is little risk of falling out of the basket. In addition, the basket for dual use of the infant luggage for a bicycle according to the above embodiment includes a handlebar 3, a safety belt 21, and a footrest member 3.
Since the number 0 is provided, it is possible to stabilize the posture of the infant in the infant luggage car by using these. Further, the basket for children's luggage for bicycles manufactured in the above embodiment is provided with a protective net 32 on the side of the footrest member 30.
Since the protective frame 31 is provided, the pants and the like of the infant rarely protrude from the foot rest member 30.
There is no danger of the infant being injured by being caught in the rear wheel. <Second Embodiment> FIG. 7 is a partial perspective view showing a bicycle / luggage / combined car manufactured by the method for manufacturing a bicycle / luggage / car according to a second embodiment of the present invention. In this embodiment, only differences from the above-described first embodiment will be described. The second embodiment differs from the first embodiment in that the rear frame 17 is connected to the front bottom frame 7 so as to be slidable in the front-rear direction without being fixed. I do. That is, as shown in the figure, a pair of inward locking members 35 are fixed to both left and right sides of the second wire member 19 as sliding members. The front end of the hooking member 35 is formed in a substantially U-shaped cross section, and the bottom frame 1 is fitted to the substantially U-shaped cross section of the hooking member 35. The relative position between the front bottom frame 7 and the rear frame 17 can be changed by sliding the rear frame 17 in the front-rear direction indicated by the arrow in the figure. A set screw 36 is attached to the tip of the hook member 35. By tightening the set screw 36, the rear frame 17 can be fixed at a desired position with respect to the front bottom frame 7. As described above, the basket for children's luggage for bicycles manufactured in this embodiment is provided with the locking member 35 and the set screw 36.
, The rear frame 17 can be disposed and fixed at a desired position with respect to the front bottom frame 7. Therefore, in this embodiment, in addition to the same operation and effect as the first embodiment, when the infant is put on the infant luggage car, the accommodation space formed by the front bottom frame 7 and the rear side frame 17 is used for the infant. The size can be adjusted according to the physique. In addition, when placing luggage in the infant luggage basket,
By sliding the rear frame 17 forward, the opening 25
Therefore, the opening / closing frame 24 and the opening / closing net 28 in the first embodiment can be omitted. As described above, the method of manufacturing the car for children's luggage according to each of the embodiments described above includes the front frame 2 disposed on the front side of the bicycle carrier, that is, the saddle side, and the bottom frame fixed to the carrier. Forming a part 1 integrally, stretching a substantially rectangular front bottom net 6 to them, and connecting the rear frame part 15 and the rear frame part 15 located on the A step of integrally forming both side frame portions 13 and 14 located on the left and right sides of the loading platform, and extending a substantially rectangular rear net 16 therewith. Is formed. Further, an opening / closing frame 24 in which an open portion 25 between the front frame portion 2 and the both side frame portions 13 and 14 is freely opened / closed allows a closed space or an open space for carrying an infant or an object to be opened / closed. 24 is selected according to the open / close position. And the opening part 2
5 restricts the movement of the foot of the infant on which the child is placed, and the body of the infant on which the child is put by the handle bar 3 disposed on the upper end of the front frame part 2. Stability can be ensured. Further, the cushion member 22 accommodated in the space formed by the bottom frame portion 1, the front frame portion 2, the both side frame portions 13, 14 and the rear frame portion 15 reduces the vibration applied to the infant or the object. And the load distribution is uniform. Further, a substantially rectangular front bottom net 6 stretched over the front frame 2 and the bottom frame 1 and the both side frame 1
A substantially rectangular rear net 1 stretched over the rear frames 3 and 14 and the rear frame 15
6 makes it harder for the stored items to fall, and also reduces the fluid resistance due to the influence of crosswinds. And, as a whole, it is modeled by a line similar to the modeling line of the bicycle main body, and even if it is considered as a total design, the design of the bicycle is not spoiled. In the meantime, the front bottom net 6 in both embodiments is formed by bending the net X at one place to have an L-shaped cross section. However, the present invention is not limited to this. For example, depending on the shapes of the bottom frame 1 and the front frame 2, the net material X
Can be bent at two or more places or cut into a plurality of units, and as a result, the front bottom net 6 can be formed in a substantially L-shape. Even in this case, any function that cooperates with the rear side net 16 to prevent the contents from dropping from the infant luggage basket may be used. The rear net 16 of the above-mentioned embodiments is a net material Y
Is bent at two places to form a U-shaped cross section. However, the present invention is not limited to this, and is not limited thereto. What is necessary is just what functions so as to prevent falling. For example, net material Y
Can be bent at three or more places or cut into a plurality of units, and as a result, the rear side net 16 can be formed in a substantially U-shape. Although welding is employed as means for fixing the rear frame 17 to the lower surface of the front bottom frame 7 in the first embodiment, the present invention is not limited to this. Instead, it is sufficient that the front bottom frame 7 and the rear side frame 17 function so as to be connected so as not to be separated from each other. It is also possible to use connecting means other than welding, for example, fasteners such as bolts and nuts. Further, the rear frame 17 can be connected to the upper surface of the front bottom frame 7. Further, the front bottom net 6 and the rear side net 1 of the above embodiment are used.
The shape of the mesh 6 is a diamond-shaped wire mesh, but is not limited to this when the present invention is implemented.
What is necessary is to function so as to prevent the fall of the contained matter, especially the small contained matter. Further, the mesh roughness of each of the nets 6 and 16 can be changed within a range not impairing the above function. Furthermore, the net material X of the front bottom net 6 in each of the above-mentioned embodiments is rectangular, and the net material Y of the rear net 16 is substantially hexagonal with the left and right ends cut off. In this case, the present invention is not limited to this, and any material may be used as long as it functions as a support that, when formed on each of the nets 6 and 16, supports the stored material and prevents it from falling out of the baby bag. . For example, the corners of the net materials X and Y are provided with a radius,
It is also possible to make the net material X substantially hexagonal or substantially octagonal, or to make the netting material Y substantially square. In addition,
When changing the shapes of the frame parts 1, 2, 13, 14, 15 it is necessary to change the shapes of the nets X, Y accordingly. The sliding member of the second embodiment is constituted by a hooking member 35, and the hooking member 35 is attached to the rear frame 17
Are provided one by one on the left and right sides, however, the present invention is not limited to this, and functions to make the front bottom frame 7 slidable with respect to the rear side frame 17. I just need. For example, the hook member 35 may be provided on the front bottom frame 7 side, or the bottom frame 1 may be inserted through the bottom frame 1 by providing a tubular portion instead of making the tip of the hook member 35 have a substantially U-shaped cross section. The number of the stop members 35 may be three or more on both left and right sides of the rear frame 17. According to the method of the present invention for manufacturing a car for a bicycle that also serves as an infant luggage for bicycles, a front frame portion disposed on the front side of a bicycle carrier and a bottom frame portion fixed to the carrier are integrally formed. A step of stretching a substantially rectangular front bottom net on the front frame portion and the bottom frame portion, and a rear frame portion located on the rear side of the carrier and the left and right sides of the carrier continuous with the rear frame portion. Are formed integrally with each other, and a step of stretching a substantially rectangular rear net with respect to the rear frame portion and the both side frame portions, thereby forming an accommodation space for infants or objects. is there. Therefore,
The front and bottom frames, the side frames and the rear frame have stretched substantially rectangular nets, and the open / close frame has open / closed nets. Even if it is small, there is no danger that it will fall, and most of it can cut raw materials as a substantially rectangular net, which can eliminate waste of material, thus reducing the manufacturing cost. Can be.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a bicycle / luggage car manufactured by the method for manufacturing a bicycle / luggage car according to the first embodiment of the present invention. FIG. 2 is an enlarged perspective view of a main body of FIG. 1; FIG. 3 is an enlarged perspective view of a cushion member and a footrest member of FIG. 1; FIG. 4 is an enlarged perspective view of the open / close frame of FIG. 1; FIG. 5 is a front view of a net of a front bottom net of the bicycle / luggage car usable in the method for manufacturing a bicycle / luggage car according to the first embodiment of the present invention. FIG. 6 is a net front view of a rear net of a bicycle / luggage car usable in the method for manufacturing a bicycle / luggage car according to the first embodiment of the present invention. FIG. 7 is a partial perspective view of a bicycle luggage / combination car manufactured by the method for manufacturing a bicycle luggage / combination car according to the second embodiment of the present invention. FIG. 8 is a front view of a net which can be used for an infant car with a bicycle. [Description of Signs] 1 bottom frame 2 front frame 3 handle bar 6 front bottom net 13, 14 side frame 15 rear frame 16 rear net 22 cushion member 24 opening / closing frame 25 opening 28 opening / closing net 30 foot rest

Claims (1)

(57) [Claims] A front frame portion disposed on the front side of the bicycle carrier and a bottom frame portion fixed to the carrier are integrally formed, and the front frame portion and the bottom frame portion that are integrally formed are already formed. A step of stretching a substantially rectangular front bottom net, and integrally forming a rear frame portion located on the rear side of the loading platform and both side frame portions located on the left and right sides of the loading platform continuous with the rear frame portion, A step of stretching an already formed substantially rectangular rear net with respect to the integrally formed rear frame portion and the both side frame portions, and a gap between the front frame portion and the both side frame portions. Provide a release section
The bottom frame, the rear frame, and both
By attaching the side frame portion, the already formed substantially
The front frame formed in a step of stretching a rectangular front bottom net
Part and the bottom frame part and the already formed substantially rectangular rear side
The rear frame portion and both sides formed in the step of stretching a net
A method of manufacturing a basket for children's luggage which is also used for bicycles , comprising a step of integrating the frame with the frame .