JP3194494U - Folding chassis - Google Patents

Abstract

The present invention provides a folding structure that is used in a folding chassis and enhances safety. The first chassis is provided with one first pivot hole and one guide hole. The second chassis 2 is provided with one second pivot hole 221 and one through hole 222, and the second chassis 2 and the first chassis 1 are fitted together. The positioning module 3 includes two positioning members 31, one first fixing member 32, one second fixing member 33 and one elastic positioning unit 34, and each positioning member 31 is an outer surface of the second chassis 2. The first fixing member 32 from one of the first chassis 1 to the first pivot hole 15 and the second pivot. The hole 221 and the two positioning members 31 are penetrated, and further coupled to the second fixing member 33 provided on the other side of the first chassis 1. The elastic positioning unit 34 penetrates the through hole 222 and the elastic positioning unit 34. Both ends of the contact are in contact with the guide hole 16 in alignment. [Selection] Figure 2

Description

  The present invention relates to a chassis, and particularly relates to a folding chassis.

  14 and 15 are views showing a conventional folding kick scooter, FIG. 14 is an explanatory view of a planar structure of a kick scooter having a conventional folding positioning structure, and FIG. 15 is a cross-sectional view of the conventional folding positioning structure. It is explanatory drawing of a structure. Referring to FIGS. 14 and 15, the conventional folding positioning structure 9 includes one rectangular pipe 91 coupled to the kick scooter handle member A, one fixed seat 92 fixed to the kick scooter main body B, and one positioning unit. 93 is included.

  The fixed seat 92 is constituted by two standing plates 921, each standing plate 921 is provided with one pivot hole 922 and one arcuate track hole 923, and the pivot holes of the two standing plates 921. 922 and the arc-shaped track hole 923 correspond to each other, the rectangular tube 91 is pivotally connected between the two standing plates 921, and is further penetrated into the fixed seat 92 by the positioning unit 93 and coupled to the rectangular tube 91 and fixed. To do.

  Among them, one recessed portion 924 is provided at each end of each arc-shaped track hole 923, and the positioning unit 93 includes one quick disconnect bolt 931, one nut 932, one spring 933, and two positioning plugs. 934. The quick release bolt 931 penetrates the two positioning plugs 934 and the spring 933 from one side of the fixed seat 92, and is further screwed from the other side of the fixed seat 92 with the nut 932 to complete the assembly. The quick release bolt 932 is connected to one pivotable spanner 935, and each of the two positioning plugs 934 is provided with one flange 936.

  Accordingly, by operating the spanner 935, the two positioning plugs 934 are pulled out of the rectangular pipe 91 by pulling or releasing the two positioning plugs 934 by using the spanner 935. It slides between the two arc-shaped track holes 923 according to rising or folding, and is further pressed into the recessed portions 924 at both ends of the two arc-shaped track holes 923 by the flanges 936 of the two positioning plugs 934. It is formed in a fixed form. One example of such a conventional folding positioning structure 9 is disclosed in the Republic of China publication No. 506383 “Kick scooter folding positioning structure” (see Patent Document 1).

  However, such a conventional folding positioning structure 9 uses the spanner 935 to pull the two positioning plugs 934 so as to stretch or release them so as to loosen them, so that the rectangular pipe 91 and the fixed seat 92 are separated. Are connected in a relative pivot state or fixed so that relative pivot cannot be performed. However, the spanner 935 is exposed to the outside of the kick scooter, and the end of the spanner 935 does not have any anti-hook design, so it may be accidentally bumped or caught by other objects during actual use. The situation of operating the wrench 935 often occurs, so the safety of the use of a kick scooter with the folding positioning structure 9 is still concerned. In particular, when the conventional folding positioning structure 9 is used for a two-wheeled vehicle or the like on which an infant rides (for example, an infant bicycle, a strider, etc.), the infant may accidentally operate the spanner 935 simply because it is curious or interesting. There was a problem that happened.

Republic of China Notice No. 506383

  The present invention has been devised in view of such problems, and its first purpose is to make the chassis into a folding state in which it can be pivoted by colliding in use or being caught on an object. An object of the present invention is to provide a foldable chassis that can be configured so as to prevent accidents and thereby improve safety in use.

  The second purpose of the present invention is that even if it is used for a motorcycle for riding an infant, an unnecessary accident occurs by preventing the infant from causing the chassis to fold in a pivotable manner. An object of the present invention is to provide a folding chassis that can reduce the amount of the vehicle.

  To achieve the above object, a folding chassis according to the present invention includes one first chassis, one second chassis, and one positioning module. The front end of the first chassis is provided with a first pivot hole and a guide hole, and the first pivot hole and the guide hole are all penetrated to the left and right sides of the first chassis. . A rear end of the second chassis is provided with a second pivot hole and a through hole. The second pivot hole and the through hole are all penetrated to the left and right sides of the second chassis. The rear end of the second chassis and the front end of the first chassis are fitted into each other, the second pivot hole and the first pivot hole are aligned with each other, and the through hole and the guide hole are positioned with respect to each other. To be combined. The positioning module includes two positioning members, one first fixing member, one second fixing member, and one elastic positioning unit. Each positioning member contacts the outer surface of the second chassis and the inner surface of the first chassis. The positioning members and the second pivot holes are coaxial, and the first fixing member is positioned from one of the first chassis to the first pivot hole, the second pivot hole, and the two positioning holes. A member is penetrated and connected to the second fixing member provided on the other side of the first chassis. The elastic positioning unit penetrates the through hole, and both ends of the elastic positioning unit are in contact with the guide hole in alignment. The guide hole includes one small diameter portion and two large diameter portions communicating with each other. The diameter width of each large diameter portion is larger than the diameter width of the small diameter portion, and the two large diameter portions are provided at both ends of the small diameter portion. The elastic positioning unit includes one elastic member and two convex portions. The two convex portions are respectively connected to both ends of the elastic member in the axial direction, and one shoulder portion is provided on the annular peripheral wall surface of each convex portion. One locking portion is formed as an arc shape between the free end of the convex portion and the shoulder portion. The diameter width of the portion where the locking portion is connected to the shoulder portion is smaller than the diameter width of the large diameter portion of the guide hole and larger than the diameter width of the other portion of the guide hole, and each convex portion. Is penetrated into the large diameter portion of the guide hole. The shoulder of each convex part abuts on the inner surface of the first chassis, or the engaging part of each convex part abuts on the inner surface of the first chassis, and further in the small diameter part of the guide hole. It is penetrated by. In addition, the elastic positioning unit is provided with one shaft tube. The shaft tube penetrates the through hole of the second chassis, and the shaft tube extends so as to protrude from the outer surface of the second chassis, and is formed so as not to contact the inner surface of the first chassis. The elastic member is housed in the shaft tube, and the two convex portions are housed in the shaft tube so as to be connected to end portions of the elastic member. Each positioning member includes one inner ring and one outer ring. The inner ring is provided in the outer ring and is coaxial with the outer ring, and one end face of the inner ring and the outer ring is connected to each other by a single contact surface. The other end face of the inner ring is extended so as to protrude from the other end face of the outer ring. Each positioning member protrudes from the end face of the outer ring at the inner ring and is fitted into the second pivot hole. The end face of the outer ring contacts the outer surface of the second chassis, and the contact surface is It contacts the inner surface of the first chassis. The first fixing member includes one head and one housing. The head of the first fixing member is connected to one end of the casing, and an inner screw is provided at the other end of the casing. The second fixing member includes one head and one external thread portion. The head of the second fixing member is connected to one end of the outer screw portion, and the outer screw portion of the second fixing member and the inner screw of the first fixing member are screwed together. The second chassis includes one cannula and one pivot. The front end of the pivot portion is coupled to the outer peripheral surface of the sleeve portion, the second pivot hole and the through hole are provided at the rear end of the pivot portion, and further to both the left and right sides of the pivot portion. It is penetrated. One saddle coupling portion is provided at the upper portion of the first chassis, and one fitting contact is provided at the front end of the first chassis. The first pivot hole and the guide hole of the first chassis are formed so as to be relatively close to the fitting contact and far away from the saddle coupling portion. The second chassis is fitted into the fitting opening of the first chassis from the rear end of the pivot part, and a single opening is provided at the bottom of the first chassis.

  The folding chassis according to the present invention can also be configured as follows. Including two third chassis and two fixing modules, each of which is provided with one extending portion on each side of the rear end of the first chassis, and each extending portion has one third pivot hole and one The third through-holes are provided with one fourth pivot hole and one opening at one end of each third chassis. The two third chassis are respectively coupled to the corresponding extending portions. The fourth pivot hole and the third pivot hole are aligned with each other, and the opening and the locking through hole are aligned with each other. Each fixing module includes one third fixing member, one fourth fixing member, and one elastic positioning unit. The third fixing member penetrates the third pivot hole and the fourth pivot hole of the third chassis from the inside of the corresponding extension part of the first chassis, and the fourth fixing member further extends to the extension part. Used to join by screwing from the outside. The elastic positioning unit is provided in a corresponding third chassis. One end of the elastic positioning unit is formed so as to protrude from the opening of the third chassis, and is further formed so as to be fitted and locked in a locking through hole of a corresponding extending portion. Each of the fixing modules further includes one locking member and one locking hook. The locking member is provided outside the corresponding third chassis. The locking member includes one slope and one locking surface. The slope of the locking member extends obliquely from the top of the locking member toward the outer surface of the third chassis, and the locking surface of the locking member extends from the top of the locking member to the third chassis. Stretching perpendicularly to the outer surface. One saddle coupling portion is provided on the upper portion of the first chassis, and one saddle is coupled to the saddle coupling portion. The locking hook is provided on a side edge of the inner surface of the saddle. The locking hook includes one slope and one locking surface, and one edge of the locking hook slope is connected to the inner surface of the saddle, and one locking surface of the locking hook is provided. Are connected to the outer surface of the saddle. The locking surface of the locking hook contacts the locking surface of the locking member. The elastic positioning unit includes one elastic member and one convex portion. The convex portion of the elastic positioning unit is connected to one end of the elastic member of the elastic positioning unit in the axial direction, and one shoulder is provided on the annular peripheral wall surface of the convex portion of the elastic positioning unit. Between the free end of the convex portion of the elastic positioning unit and the shoulder portion, a single locking portion is formed as an arc shape, and the convex portion of the elastic positioning unit extends from the shoulder portion to the inner peripheral wall of the third chassis. Further, it is formed so as to protrude from the opening of the third chassis by the locking portion. In addition, one tube seat is provided in the elastic positioning unit. The tube seat is provided in a corresponding third chassis. The elastic member of the elastic positioning unit is accommodated in the tube seat, and the end of the elastic member where the convex portion of the elastic positioning unit is connected to the elastic positioning unit is accommodated in the tube seat. The third fixing member includes one head and one housing. The head of the third fixing member is connected to one end of the casing of the third fixing member, and an internal screw is provided at the other end of the casing of the third fixing member. The fourth fixing member includes one head and one external thread portion. The head of the fourth fixing member is connected to one end of the outer screw portion of the fourth fixing member, and the outer screw portion of the fourth fixing member and the inner screw of the third fixing member are screwed together.

  According to the folding type chassis of the present invention, it is possible to increase the safety in use because the chassis does not enter a pivotable folding state by colliding in use or being hooked on an object. There are advantages.

  According to the folding chassis of the present invention, even if it is used for a motorcycle for riding an infant, the infant can prevent the infant from turning the chassis into a folding state so that an unnecessary accident occurs. There is an advantage that can be reduced.

FIG. 1 is an explanatory diagram of a three-dimensional structure of Example 1 of the present invention. FIG. 2 is an explanatory diagram of the three-dimensional decomposition structure according to the first embodiment of the present invention. FIG. 3 is an explanatory diagram of a local three-dimensional decomposition structure according to the first embodiment of the present invention. FIG. 4 is an explanatory diagram of a cross-sectional planar structure when the first embodiment of the present invention is formed in the unfolded state. FIG. 5 is an explanatory diagram of a cross-sectional structure taken along line AA in FIG. FIG. 6 is an explanatory diagram of a cross-sectional structure when the first chassis and the second chassis pivot relative to each other in the first embodiment of the present invention. FIG. 7 is an explanatory diagram of a planar structure in a state in which the first embodiment of the present invention is folded. FIG. 8 is an explanatory diagram of a three-dimensional structure according to the second embodiment of the present invention. FIG. 9 is an explanatory diagram of a three-dimensional decomposition structure according to the second embodiment of the present invention. FIG. 10 is an explanatory diagram of a planar structure of local perspective when the second embodiment of the present invention is formed in the unfolded state. FIG. 11 is an explanatory diagram of a cross-sectional structure taken along line BB in FIG. FIG. 12 is an explanatory diagram of a planar structure in a state in which the second embodiment of the present invention is folded. 13 is a cross-sectional view of a local enlargement of FIG. FIG. 14 is an explanatory view of a planar structure of a kick scooter having a conventional folding positioning structure. FIG. 15 is an explanatory diagram of a cross-sectional structure of a conventional folding positioning structure.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an explanatory view of a three-dimensional structure of a folding chassis according to the first embodiment of the present invention. The folding chassis is roughly divided into one first chassis 1, one second chassis 2 and one positioning module 3, and the first chassis 1 and the second chassis 2 are relatively pivoted by the positioning module 3. It is possible to control whether or not it can be performed.

  The folding chassis of the present invention can be of any structural form and size. In terms of structure, the folding chassis can be composed of a base of a vehicle body of a different vehicle type such as a bicycle, kick scooter, strider (trademark: bicycle without petal for kids). Further, the foldable chassis can be a two-wheel vehicle base, a three-wheel vehicle base, or a vehicle body base having another structure. On the other hand, in terms of size, the foldable chassis can be used as a base for a car body generally used by an adult or as a base for a small car body used by an infant. Thus, the fact that the folding chassis of the present invention can be adjusted according to the demand for use can be easily understood by those having ordinary knowledge in the technical field belonging to the present invention. However, the first embodiment of the present invention will be described by taking a folding chassis of a two-wheeled strider for infants as an example.

  FIG. 2 is an explanatory view of the three-dimensional decomposition structure according to the first embodiment of the present invention. Referring to FIGS. 1 and 2, a single saddle coupling portion 11 is provided on the upper portion of the first chassis 1, and is used to install a single saddle S. An opening 12 is provided at the bottom of the first chassis 1 so as to communicate with one inside. One wheel pivot 13 is provided at the rear end of the first chassis 1 and is used to pivot one rear wheel R. One fitting contact 14 is provided at the front end of the first chassis 1. Used for fitting with the second chassis 2. In addition, one first pivot hole 15 and one guide hole 16 are provided at the front end of the first chassis 1. The first pivot hole 15 and the guide hole 16 are formed so as to be relatively close to the fitting hole 14 and relatively far from the saddle coupling portion 11, and the first pivot hole 15 and the guide hole 16. All penetrate through to the left and right sides of the first chassis 1.

  FIG. 3 is an explanatory diagram of a local three-dimensional decomposition structure according to the first embodiment of the present invention. Referring also to FIG. 3, the guide hole 16 includes one small diameter portion 161 and two large diameter portions 162 communicating with each other. The small diameter portion 161 of the guide hole 16 has an arc shape of about a quarter circle. The diameter width of each large diameter portion 162 is larger than the diameter width of the small diameter portion 161, and the two large diameter portions 162 are provided at both ends of the small diameter portion 161.

  Referring again to FIGS. 2 and 3, the second chassis 2 includes one sleeve portion 21 and one pivot portion 22. The cannula portion 21 is used to penetrate one shaft rod P, and one handle H is provided at one end of the shaft rod P, which is used for a user to hold. One support frame D is provided at the other end of the shaft rod P, and is used to pivotally connect one front wheel F. The front end of the pivot portion 22 is coupled to the outer peripheral surface of the sleeve portion 21, and one second pivot hole 221 and one through hole 222 are provided at the rear end of the pivot portion 22. The second pivot hole 221 and the through hole 222 are all penetrated to the left and right sides of the pivot portion 22 of the second chassis 2, and the second chassis 2 is fitted to the first chassis 1 from the rear end of the pivot section 22. 14, the second pivot hole 221 and the first pivot hole 15 are aligned with each other, and the through hole 222 and the guide hole 16 are aligned with each other.

  FIG. 4 is an explanatory view of a planar structure of a local cross section when the first embodiment of the present invention is formed in an unfolded state, and FIG. 5 is an explanatory view of a cross sectional structure taken along line AA of FIG. 3 to 5, the positioning module 3 includes two positioning members 31, one first fixing member 32, and one second fixing member 33. Each positioning member 31 includes one inner ring 311 and one outer ring 312. The inner ring 311 is provided in the outer ring 312 and is coaxial with the outer ring 312. One end face of the inner ring 311 and the outer ring 312 are connected to each other by one abutting face 313, and the other end face of the inner ring 311 extends so as to protrude from the other end face of the outer ring 312.

  The two positioning members 31 are respectively provided between the pivot 22 and the first chassis 1 of the second chassis 2, and the positioning members 31 protrude from the inner ring 311 and the second pivot holes 221 of the pivot 22. Inserted. It is coaxial with each positioning member 31 and the second pivot hole 221, the end surface of the outer ring 312 abuts on the outer surface of the pivot portion 22, and the abutment surface 313 abuts on the inner surface of the first chassis 1.

  The first fixing member 32 includes the first pivot hole 15 of the first chassis 1, the second pivot hole 221 of the second chassis 2, and the two positioning members 31 from one (for example, the left side) of the first chassis 1. Further, the second fixing member 33 provided on the other side (for example, the right side) of the first chassis 1 is further coupled. For example, the first fixing member 32 may be a bolt having one external screw, and the second fixing member 33 may be a corresponding one nut or shown in the schematic of the first embodiment. Thus, the 1st fixing member 32 consists of a volt | bolt which has one internal screw, and the 2nd fixing member 33 consists of a volt | bolt which has one external screw so that it may respond | correspond. More specifically, the first fixing member 32 includes one head 321 and one housing 322, the head 321 is connected to one end of the housing 322, and an internal screw 323 is connected to the other end of the housing 322. Is provided.

  The second fixing member 33 includes one head 331 and one external thread portion 332. The head 331 is connected to one end of the external screw portion 332. The outer threaded portion 332 can be screwed together with the inner screw 323 of the first fixing member 32, and the two heads 321, 331 depending on the length of the screwing between the second fixing member 33 and the first fixing member 32. To control whether or not the pivot 22 of the first chassis 1 and the second chassis 2 can pivot relative to each other (this will be described in detail later). .

  In addition to these, the positioning module 3 includes one elastic positioning unit 34. The elastic positioning unit 34 penetrates the through hole 222 of the second chassis 2, and when the pivotal portion 22 of the second chassis 2 pivots relative to the first chassis 1, both ends of the elastic positioning unit 34 are at the first chassis. When the relative movement is generated in the small diameter portion 161 of the one guide hole 16 and further aligned to the large diameter portion 162 of the guide hole 16, it extends so as to protrude from the outer surface of the first chassis 1. By doing so, the resilient positioning unit 34 and the first chassis 1 are configured to be locked.

  In the first embodiment, the elastic positioning unit 34 includes one elastic member 341 and two convex portions 342. The elastic member 341 can be elastically deformed in the axial direction, and can be composed of, for example, a single compression spring. The two convex portions 342 are respectively connected to both ends of the elastic member 341 in the axial direction, and one shoulder portion 343 is provided on the annular peripheral wall surface of each convex portion 342. One locking portion 344 is formed as an arc shape between the free end of the convex portion 342 and the shoulder portion 343, and the diameter width of the portion where the locking portion 344 is connected to the shoulder portion 343 is the large diameter of the guide hole 16. It is slightly smaller than the diameter width of the portion 162 and larger than the diameter width of the small diameter portion 161 of the guide hole 16.

  In addition, the elastic positioning unit 34 is preferably provided with one shaft tube 345. The shaft tube 345 penetrates the through hole 222 of the second chassis 2, and the shaft tube 345 extends so as to protrude from the outer surface of the pivotal portion 22 of the second chassis 2 so as not to contact the inner surface of the first chassis 1. Formed. Since the inner diameter of the shaft tube 345 is slightly larger than the outer diameter of the elastic member 341 and the elastic member 341 is accommodated in the shaft tube 345, a phenomenon of buckling occurs when the elastic member 341 is elastically deformed in the axial direction. Can be avoided. Further, the end where the two convex portions 342 are connected to the elastic member 341 is preferably accommodated in the shaft tube 345. Therefore, the two convex portions 342 can be secured so as to move only along the axial direction of the elastic member 341.

  4 is an explanatory view of a cross-sectional planar structure when the first embodiment of the present invention is formed in a developed state, and FIG. 5 is an explanatory view of the cross-sectional structure along the line AA of FIG. When the folding chassis of the present invention is formed as shown in FIG. 4 based on the structure described above, referring to FIGS. 3 and 5 together, the two convex portions 342 of the positioning module 3 are Each of the locking portions 344 is locked into one large diameter portion 162 of the guide hole 16, and the user tightens the second fixing member 33, whereby the head 321 of the first fixing member 32. Since the head 331 of the second fixing member 33 is as close as possible, the two heads 321 and 331 are pressed against the inner surface of the first chassis 1 so that the two positioning members 31 are tightened. Since the contact surface 313 of each positioning member 31 is in close contact with the inner surface of the first chassis 1 and the end surface of the outer ring 312 of each positioning member 31 is in close contact with the outer surface of the pivot 22, The pivot 22 of the two chassis 2 cannot pivot relative to the first chassis 1.

  When the user attempts to fold the folding chassis of the present invention, the user simply rotates the second fixing member 33 so as to loosen, and the screwing length between the second fixing member 33 and the first fixing member 32 is shortened. That is, by increasing the distance between the head 321 of the first fixing member 32 and the head 331 of the second fixing member 33, the head 331 of the second fixing member 33 closely contacts the outer surface of the first chassis 1. Since the two positioning members 31 are not in contact with each other and are not in close contact with the inner surface of the first chassis 1 and the outer surface of the pivot 22, the user can use the first chassis 1 or the second chassis. The pivot 22 of the second chassis 2 can be pivoted with respect to the first chassis 1 simply by rotating 2.

  Among them, since the locking portion 344 of each convex portion 342 is formed in an arc shape, when the pivotal portion 22 of the second chassis 2 pivots relative to the first chassis 1, A force can be applied directly to the engaging portion 344 of each convex portion 342 from the edge of the large-diameter portion 162 of the guide hole 16. Therefore, the two convex portions 342 are contracted and the elastic member 341 is jointly compressed, so that the elastic positioning unit 34 can generate relative movement in the small diameter portion 161 of the guide hole 16. The engaging portion 344 of the portion 342 contacts the inner surface of the first chassis 1 and is penetrated locally into the small diameter portion 161 of the guide hole 16.

  When the two convex portions 342 are aligned to the other large-diameter portion 162 of the guide hole 16, the two convex portions 342 are pressed and moved by the elastic deformation of the elastic member 341. The shoulder portion 343 of the portion 342 again abuts against the inner surface of the first chassis 1, and the locking portions 344 of the two convex portions 342 are penetrated into the large diameter portion 162 of the guide hole 16, thereby 1 is formed to be locked.

  Next, by tightening the second fixing member 33 again by the user, the pivot 22 of the second chassis 2 cannot be pivoted again relative to the first chassis 1, and the folding type of the present invention is further improved. The chassis is formed in a folded state as shown in FIG.

  When the folding chassis of the present invention is formed in a folded state, a part of the front wheel F can be stored in the opening 12 at the bottom of the first chassis 1, so that the folding chassis with wheels assembled can be used. The volume after being folded can be further reduced.

  On the contrary, when the folding chassis of the present invention is returned from the folded state to the unfolded state, the first chassis 1 or the second chassis 2 is further reversed in the opposite direction by rotating the second fixing member 33 so as to loosen. The pivot 22 of the second chassis 2 can be pivoted relative to the first chassis 1 simply by applying a force to the first chassis 1, and the two convex parts 342 are the original large diameter section. When it is aligned to 162 and returned, it is only necessary to tighten the second fixing member 33 again. As described above, when the folding type chassis of the present invention tries to change the folding state, it is only necessary to rotate the second fixing member 33 so as to tighten or loosen, and it is not necessary to remove all the second fixing member 33. Therefore, it is very convenient for the operation of use.

FIG. 8 is an explanatory diagram of the three-dimensional structure of Example 2 of the present invention. With reference to FIG. 8, the folding type chassis in the second embodiment will be described by taking a folding type chassis of a three-wheeled strider for infants as an example. In the folding chassis of the present invention, one front wheel F and two rear wheels R are assembled. In the second embodiment, the folding chassis is roughly divided into one first chassis 1, one second chassis 2, one positioning module 3, two third chassis 4, and two fixing modules 5. It is.

  The front wheel F is assembled to the second chassis 2. One rear wheel R is assembled into one of the third chassis 4, and the other rear wheel R is assembled into another third chassis 4. The positioning module 3 can restrict whether or not the second chassis 2 can pivot relative to the first chassis 1, and each of the corresponding third chassis 4 can be controlled by two fixing modules 5. It is possible to limit whether or not the vehicle can pivot relative to the chassis 1.

  FIG. 9 is an explanatory diagram of a three-dimensional decomposition structure according to the second embodiment of the present invention. 8 and 9, the structure of the first chassis 1 is almost the same as that of the first embodiment described above, and the saddle coupling portion 11, the opening 12, the fitting contact port 14, the first pivot hole 15 and the guide hole 16 described above. In addition, one extending portion 17 is provided on each side of the rear end of the first chassis 1, and is used to connect the two third chassis 4. Each extending portion 17 is provided with one third pivot hole 171 and one locking through hole 172.

  The structure of the second chassis 2 is also substantially the same as that of the first embodiment described above. In addition to the sleeve portion 21 and the pivot portion 22 described above, the front wheel F pivoted to the support frame D is provided on both sides of the shaft center. One pedal E can be locked and coupled, and a single pedal storage portion C can be installed in the sleeve portion 21, and the pedal storage portion C is removed from both sides of the axis of the front wheel F. One pedal E can be stored.

  Since the structure of the positioning module 3 is the same as that of the first embodiment described above, the positioning module 3 can restrict whether or not the first chassis 1 and the second chassis 2 can pivot relative to each other. The first chassis 1 and the second chassis 2 can be folded into a folded state as shown in FIG. Since the detailed structure and operation of the other positioning module 3 are all the same as described above, the description thereof is omitted here.

  FIG. 10 is an explanatory view of a planar structure of local perspective when the second embodiment of the present invention is formed in the unfolded state. Referring to FIGS. 9 and 10, the folding chassis of the second embodiment is provided with two third chassis 4, and one fourth pivot hole 41 and one opening are formed at one end of each third chassis 4. 42 is provided. The two third chassis 4 are respectively coupled to the corresponding extending portions 17, the fourth pivot hole 41 and the third pivot hole 171 are aligned with each other, and the opening 42 and the locking through hole 172 are positioned with respect to each other. To be combined. One wheel pivot 43 is provided at the other end of each third chassis 4 and is used to pivot the rear wheel R.

  FIG. 11 is an explanatory diagram of a cross-sectional structure taken along line BB in FIG. Referring to FIGS. 9 and 11, each fixing module 5 includes one third fixing member 51 and one fourth fixing member 52. The third fixing member 51 penetrates the third pivot hole 171 and the fourth pivot hole 41 of the third chassis 4 from the inside of the corresponding extension portion 17 of the first chassis 1, and the fourth fixing member 52 further extends to the extension portion 17. 17 is used to connect by screwing from the outside. As an example, the third fixing member 51 can be made of a bolt having one external thread, and the fourth fixing member 52 can be made of a corresponding one nut or, as shown in the diagram of Example 2, The fixing member 51 may be a bolt having one internal screw, and the fourth fixing member 52 may be a bolt having one external screw correspondingly.

  Specifically, the third fixing member 51 includes one head 511 and one housing 512. The head 511 is connected to one end of the housing 512, and an internal screw 513 is provided at the other end of the housing 512. The fourth fixing member 52 includes one head 521 and one external screw portion 522, and the head 521 is connected to one end of the external screw portion 522. The outer screw portion 522 can be screwed together with the inner screw 513 of the third fixing member 51, and further, the two heads 511, 521 depending on the screwing length between the fourth fixing member 52 and the third fixing member 51. To control whether or not the corresponding third chassis 4 can pivot relative to the first chassis 1 (described in detail later).

  Each fixing module 5 further includes one elastic positioning unit 53. The elastic positioning unit 53 is provided in the corresponding third chassis 4, one end of the elastic positioning unit 53 is formed so as to protrude from the opening 42 of the third chassis 4, and the corresponding extending through hole 17 of the extending portion 17 is further formed. 172 is formed so as to be fitted and locked.

  In the second embodiment, the elastic positioning unit 53 includes one elastic member 531 and one convex portion 532. The elastic member 531 can be elastically deformed in the axial direction, and can be composed of, for example, a single compression spring. The convex portion 532 is connected to one end of the elastic member 531 in the axial direction, and one shoulder portion 533 is provided on the annular peripheral wall surface of the convex portion 532. One locking portion 534 is formed as an arc shape between the free end of the convex portion 532 and the shoulder portion 533. The convex portion 532 is formed so as to abut against the inner peripheral wall of the third chassis 4 from the shoulder portion 533 and further protrude from the opening 42 of the third chassis 4 by the locking portion 534.

  In addition to this, one tube seat 535 is provided in the elastic positioning unit 53. The tube seat 535 is provided in the corresponding third chassis 4, and the inner diameter of the tube seat 535 is slightly larger than the outer diameter of the elastic member 531, and the elastic member 531 is accommodated in the tube seat 535. Can avoid the phenomenon of warping when elastically deforming in the axial direction. In addition, since the end where the convex portion 532 is connected to the elastic member 531 is preferably accommodated in the tube seat 535, the convex portion 532 can be ensured to move only along the axial direction of the elastic member 531.

  Referring again to FIGS. 9 and 10, each fixing module 5 further includes one locking member 54 and one locking hook 55. The locking member 54 is provided outside the corresponding third chassis 4, and the locking member 54 is selectively coupled to the third chassis 4 by a means such as adhesion, solid contact, locking, or the like. In this way, it is connected to the third chassis 4.

  13 is a cross-sectional view of a local enlargement of FIG. Referring to FIG. 13, the locking member 54 includes one slope 541 and one locking surface 542. Since the inclined surface 541 extends obliquely from the upper part of the locking member 54 toward the outer surface of the third chassis 4, the locking hook 55 is slid from the outer surface of the third chassis 4 to the upper part of the locking member 54. Can be led to.

  Since the locking surface 542 extends vertically from the upper portion of the locking member 54 toward the outer surface of the third chassis 4, the locking hook 55 slides from the upper portion of the locking member 54 to the locking surface 542, and then again. It is difficult to slide back to the top of the locking member in the opposite direction. The inclined surface 541 and the locking surface 542 can be connected to each other at the upper portion of the locking member 54, or are formed to be separated from each other by a single plane.

  In the second embodiment, a locking hook 55 that locks with the locking member 54 is provided on a saddle S that is selectively coupled to the first chassis 1, and the locking hook 55 is a side end of the inner surface of the saddle S. Provided at the edge. The locking hook 55 includes one slope 551 and one locking surface 552. One edge of the inclined surface 551 is connected to the inner surface of the saddle S, one edge of the locking surface 552 is connected to the outer surface of the saddle S, and the other edge of the inclined surface 551 and the locking surface 552 is They are connected to each other or separated from each other by a single plane.

  Thereby, the slope 541 of the locking member 54 can slide relative to the slope 551 of the locking hook 55, and after the locking hook 55 slides from the upper part of the locking member 54 to the locking surface 542, Since the locking surface 552 of the locking hook 55 can be brought into contact with the locking surface 542 of the locking member 54, the locking member 54 and the locking hook 55 are locked with each other and hardly slide in the opposite direction.

  When the folding chassis of the present invention is formed in the unfolded state as shown in FIGS. 8 and 10 based on the structure described above, referring to FIG. 11 at the same time, the protrusions 532 of each fixing module 5 are related to each other. The stopper 534 is locked in the corresponding opening 42 of the third chassis 4, and the user tightens the fourth fixing member 52, thereby the head 511 of the third fixing member 51 and the head of the fourth fixing member 52. Since 521 is as close as possible, the third chassis 4 is opposed to the first chassis 1 by pressing the third chassis 4 with the two heads 511 and 521 and closely contacting the extending portion 17 of the first chassis 1. Can not pivot.

  When the folding chassis is to be folded, the details of the pivoting and positioning of the second chassis 2 relative to the first chassis 1 have all been described in detail in the first embodiment, and the description thereof is omitted here. And about folding of the two 3rd chassis 4, a user only shortens the screwing length between the 4th fixing member 52 and the 3rd fixing member 51 only by rotating the 4th fixing member 52 so that it may loosen. That is, by increasing the distance between the head 511 of the third fixing member 51 and the head 521 of the fourth fixing member 52, the head 521 of the fourth fixing member 52 closely contacts the outer surface of the third chassis 4. The user simply turns the first chassis 1 or the third chassis 4 because the third chassis 4 only comes into contact and does not come into close contact with the outer surface of the extending portion 17 of the first chassis 1. The third chassis 4 can be pivoted relative to the first chassis 1, and the folding chassis is formed in a folded state as shown in FIG.

  Since the locking portion 534 of the convex portion 532 is formed in an arc shape, when the third chassis 4 pivots relative to the first chassis 1, from the edge of the locking through hole 172 of the first chassis 1. Since a force can be applied directly to the locking portion 534 of the convex portion 532, the convex portion 532 compresses the elastic member 531 and is further compressed into the opening 42 of the third chassis 4.

  On the other hand, referring to FIG. 13, when the third chassis 4 pivots relative to the first chassis 1, the locking member 54 provided on the third chassis 4 is moved to the inclined surface 551 of the locking hook 55 by the inclined surface 541. The locking hook 55 slides from the upper part of the locking member 54 to the locking surface 542 and then comes into contact with the locking surface 542 of the locking member 54 by the locking surface 552 of the locking hook 55. Therefore, the locking member 54 and the locking hook 55 are locked to each other and are difficult to slide in the opposite direction. Referring to FIGS. 11 and 12, when the user fastens the fourth fixing member 52 again, the third chassis 4 cannot pivot relative to the first chassis 1 again.

  On the other hand, when the folding type chassis is returned from the folded state to the unfolded state, by rotating the fourth fixing member 52 so as to loosen, the force is applied to the first chassis 1 or the third chassis 4 in the opposite direction. Since the locking hook 55 is slightly elastically deformed only by being applied and rotated, the locking state between the locking member 54 and the locking hook 55 can be released. When the pivoting occurs relative to the first chassis 1 and the convex portion 532 is again penetrated into the locking penetration 172, it is only necessary to tighten the fourth fixing member 52 again.

  In summary, according to the folding chassis of the present invention, only when the second fixing member is rotated so as to be loosened, the second chassis can be pivoted relative to the first chassis, and the second fixing member The first fixing member and the first fixing member are stably coupled by a screwing method, and only the head having a small volume is exposed on the outer surface of the first chassis. Since it can be ensured that the two fixing members will not loosen, and further, it can be ensured that the first chassis and the second chassis are not temporarily folded in a pivotable state, The effect of significantly increasing the safety in use can be achieved.

  In addition, according to the folding type chassis of the present invention, even if it is used for a motorcycle for riding an infant (for example, infant bicycle, Strider (trademark), etc.), the infant does not have the ability to use a tool, and the second fixed Infants can effectively prevent the chassis from being folded in a pivotable manner because it cannot rotate so as to loosen or tighten the members, so that unnecessary accidents can occur. It can help to reduce and increase safety in use.

  Further, when the folding chassis of the present invention is a tricycle chassis, two third chassis in which two rear wheels are assembled by two fixing modules can be folded or positioned. Therefore, the effect of further reducing the volume after being folded can be achieved.

  The present invention may be implemented in other ways without departing from the spirit and essential characteristics thereof. Accordingly, the preferred embodiments described herein are exemplary and not intended to be limiting.

DESCRIPTION OF SYMBOLS 1 1st chassis 11 Saddle coupling | bond part 12 Opening 13 Wheel pivoting part 14 Fitting contact 15 First pivoting hole 16 Guide hole 161 Small diameter part 162 Large diameter part 17 Extending part 171 Third pivoting hole 172 Locking through hole 2 2nd chassis 21 sleeve portion 22 pivot portion 221 second pivot hole 222 through hole 3 positioning module 31 positioning member 311 inner ring 312 outer ring 313 abutting surface 32 first fixing member 321 head 322 housing 323 inner screw 33 Second fixing member 331 Head 332 External thread part 34 Elastic positioning unit 341 Elastic member 342 Convex part 343 Shoulder part 344 Locking part 345 Axle tube 4 Third chassis 41 Fourth pivot hole 42 Open hole 43 Wheel pivot part 5 Fixed Module 51 Third fixing member 511 Head 512 Housing 513 Internal screw 52 Fourth fixing member 521 Head 522 External screw portion 53 Elastic positioning unit 531 Elastic member 532 Protruding portion 533 Shoulder portion 534 Locking portion 535 Tube seat 54 Locking member 541 Slope 542 Locking surface 55 Locking hook 551 Slope 552 Locking surface 9 Folding positioning structure 91 Square tube 92 Fixed seat 921 Standing plate 922 Pivoting hole 923 Arc-shaped track hole 924 Recessed portion 93 Positioning unit 931 Quick release bolt 932 Nut 933 Spring 934 Positioning plug 935 Spanner 936 Flange A Kick scooter handle member B Kick scooter main body C Pedal housing portion D Support frame E Pedal F Front wheel H Handle P Shaft R Rear wheel S Saddle

Claims (2)

  A folding chassis including one first chassis (1), one second chassis (2), and one positioning module (3), wherein one first chassis (1) is provided at the front end of the first chassis (1). A pivot hole (15) and one guide hole (16) are provided, and the first pivot hole (15) and the guide hole (16) all extend to the left and right sides of the first chassis (1). A second pivot hole (221) and a through hole (222) are provided at the rear end of the second chassis (2), and the second pivot hole (221) and the through hole ( 222) are all penetrated to the left and right sides of the second chassis (2), the rear end of the second chassis (2) and the front end of the first chassis (1) are fitted together, and the second pivot The contact hole (221) and the first pivot contact hole (15) are aligned with each other, and the through hole (222) and the guide hole (16) are aligned with each other. The positioning module (3) includes two positioning members (31), one first fixing member (32), one second fixing member (33), and one elastic positioning unit (34). The positioning members (31) abut against the outer surface of the second chassis (2) and the inner surface of the first chassis (1), and the positioning members (31) and the second pivot hole (221). The first fixing member (32) is positioned from one of the first chassis (1) to the first pivot hole (15), the second pivot hole (221), and the two positioning members. The member (31) is penetrated and is connected to the second fixing member (33) provided on the other side of the first chassis (1), and the elastic positioning unit (34) penetrates the penetration (222). Both ends of the elastic positioning unit (34) are connected to the guide hole. 16), the guide hole (16) includes one small-diameter portion (161) and two large-diameter portions (162) communicating with each other. 162) is larger than the diameter of the small-diameter portion (161), the two large-diameter portions (162) are provided at both ends of the small-diameter portion (161), and the elastic positioning unit (34) includes One elastic member (341) and two convex portions (342) are included, and the two convex portions (342) are connected to both ends of the elastic member (341) in the axial direction, respectively. One shoulder portion (343) is provided on the annular peripheral wall surface of (342), and a single locking portion (344) is formed as an arc shape between the free end of the convex portion (342) and the shoulder portion (343). ), And the diameter width of the portion where the locking portion (344) is connected to the shoulder (343) is It is smaller than the diameter width of the large-diameter portion (162) of the guide hole (16) and larger than the diameter width of other portions of the guide hole (16), and further, the locking portion ( 344) penetrates into the large diameter portion (162) of the guide hole (16), and the shoulder portion (343) of each convex portion (342) abuts against the inner surface of the first chassis (1). Alternatively, the locking portion (344) of each convex portion (342) abuts on the inner surface of the first chassis (1), and is further penetrated into the small diameter portion (161) of the guide hole (16). In addition, the elastic positioning unit (34) is provided with another shaft tube (345), and the shaft tube (345) penetrates the through hole (222) of the second chassis (2). (345) is extended so as to protrude from the outer surface of the second chassis (2) and does not contact the inner surface of the first chassis (1). The elastic member (341) is accommodated in the shaft tube (345), and the two convex portions (342) are connected to the end of the elastic member (341) to connect the shaft tube. (345), each positioning member (31) includes one inner ring (311) and one outer ring (312), and the inner ring (311) is the outer ring (312). And is coaxial with the outer ring (312), and one end face of the inner ring (311) and the outer ring (312) is connected to each other by a single contact surface (313), and The other end face of the ring (311) is extended so as to protrude from the other end face of the outer ring (312), and the positioning members (31) are the inner ring (311) and the outer ring (312). It protrudes from the end face and is inserted into the second pivot hole (221), and the outer ring ( 12) is in contact with the outer surface of the second chassis (2), the contact surface (313) is in contact with the inner surface of the first chassis (1), and the first fixing member (32) Includes one head (321) and one housing (322), and the head (321) of the first fixing member (32) is connected to one end of the housing (322), and the housing (322). ) Is provided with an inner screw (323), and the second fixing member (33) includes one head (331) and one outer screw portion (332). The head (331) of 33) is connected to one end of the outer screw portion (332), and the outer screw portion (332) of the second fixing member (33) and the inner screw (323) of the first fixing member (32). ) Are screwed together, and the second chassis (2) has one sleeve portion (21) and one pivot portion (22). ), The front end of the pivot portion (22) is coupled to the outer peripheral surface of the sleeve portion (21), and the second pivot hole (221) and the through hole (222) are coupled to the pivot portion (22). 22) is provided at the rear end, and further penetrates to the left and right sides of the pivot portion (22), and a saddle coupling portion (11) is provided on the upper portion of the first chassis (1). A single fitting contact (14) is provided at the front end of the chassis (1), and the first pivot hole (15) and the guide hole (16) of the first chassis (1) are relatively connected to the fitting contact (14). ) And a distance from the saddle coupling portion (11), and the second chassis (2) is inserted from the rear end of the pivot (22) into the fitting opening of the first chassis (1). Folding that is inserted into (14) and has a single opening (12) connected to the inside at the bottom of the first chassis (1). Chassis.   Two third chassis (4) and two fixing modules (5) are further included, and one extending portion (17) is provided on each side of the rear end of the first chassis (1). The extending portion (17) is provided with one third pivot hole (171) and one locking through hole (172), and one fourth pivot hole is formed at one end of each third chassis (4). (41) and one opening (42) are provided, and the two third chassis (4) are respectively coupled to the corresponding extending portions (17), and the fourth pivot hole (41) and the first The three pivot holes (171) are aligned with each other, the openings (42) and the locking through holes (172) are aligned with each other, and each fixing module (5) has one third fixing member ( 51), one fourth fixing member (52) and one elastic positioning unit (53). The member (51) has the third pivot hole (171) and the fourth pivot hole (41) of the third chassis (4) from the inside of the corresponding extension (17) of the first chassis (1). Further, the fourth fixing member (52) is used for screwing and joining from the outside of the extending portion (17), and the elastic positioning unit (53) is provided in the corresponding third chassis (4). One end of the elastic positioning unit (53) is formed so as to protrude from the opening (42) of the third chassis (4), and further, the corresponding through hole (172) of the extending portion (17) is formed. The fixing module (5) further includes one locking member (54) and one locking hook (55), and the locking member (54). Is provided on the outside of the corresponding third chassis (4), and is attached to the locking member (54). One inclined surface (541) and one locking surface (542) are included, and the inclined surface (541) of the locking member (54) extends from the upper portion of the locking member (54) to the third chassis (4). The locking surface (542) of the locking member (54) extends in an oblique direction toward the outer surface, and the locking surface (542) of the locking member (54) is perpendicular to the outer surface of the third chassis (4) from the upper part of the locking member (54). And a saddle coupling portion (11) is provided on the upper portion of the first chassis (1), and a saddle coupling portion (11) is coupled with a single saddle (S). 55) is provided at the side edge of the inner surface of the saddle (S), and the locking hook (55) includes one inclined surface (551) and one locking surface (552). One end edge of the slope (551) of the hook (55) is connected to the inner surface of the saddle (S), and the locking hook ( One end edge of the locking surface (552) of 55) is connected to the outer surface of the saddle (S), and the locking surface (552) of the locking hook (55) is connected to the locking member (54). The elastic positioning unit (53) is in contact with the locking surface (542), and includes one elastic member (531) and one convex portion (532), and the convex portion (532) of the elastic positioning unit (53). ) Is connected to one end in the axial direction of the elastic member (531) of the elastic positioning unit (53), and one shoulder (533) is provided on the annular peripheral wall surface of the convex portion (532) of the elastic positioning unit (53). A circular arc-shaped locking portion (534) is formed between the free end of the convex portion (532) of the elastic positioning unit (53) and the shoulder portion (533), and the elastic positioning unit The convex part (532) of (53) is the shoulder part ( 33) abuts against the inner peripheral wall of the third chassis (4) and protrudes from the opening (42) of the third chassis (4) by the locking portion (534). (53) is further provided with one tube seat (535), the tube seat (535) is provided in the corresponding third chassis (4), and the elastic member (531) of the elastic positioning unit (53). ) Is accommodated in the tube seat (535), and the end of the elastic member (531) where the convex portion (532) of the elastic positioning unit (53) is connected to the elastic positioning unit (53) is the tube seat. (535), the third fixing member (51) includes one head (511) and one housing (512), and the third fixing member head (511) is the first fixing member (511). One of the three fixing member housings (512) And an inner screw (513) is provided on the other end of the casing (512) of the third fixing member, and one head (521) and one outer screw are provided on the fourth fixing member (52). Part (522), and the head (521) of the fourth fixing member (52) is connected to one end of the external thread portion (522) of the fourth fixing member (52), so that the fourth fixing member (52 2. The folding type chassis according to claim 1, wherein an outer screw portion (522) of the second fixing member and an inner screw (513) of the third fixing member are screwed together.

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