JP2019099102A - Connecting mechanism for bogie of drive wheel unit - Google Patents

Abstract

To provide a connecting mechanism for a bogie of a drive wheel unit which can be properly connected to a bogie such as an existing cage bogie by receiving wheel pressure by using only a mechanism which is arranged at the drive wheel unit side.SOLUTION: A connecting mechanism for a bogie of a drive wheel unit comprises: a base table 20 which is arranged at the drive wheel unit 10 side so that a bogie 90 and the drive wheel unit 10 are connected to each other, received by a pressure-receiving spring member 13 which is arranged while being supported to a main body 11, and guided by a vertical moving guide 22 at its vertical displacement; a connecting table 30 which is attached to the base table 20 in a state of being supported thereto with a vertical axis as a center, and abuts on and is connected to an edge lower face 92 of a base part 91 of the bogie 90; and a link lever 40 which is arranged in a lever shape, whose one end part 41 is pivoted to the main body 11, whose middle part 42 is pivoted to the other end part of a linkage link 45 which is pivoted to the base table 20 at its one end part, and which is arranged at the other end part 43 so as to be turn-operable, and can impart a pressing force to a direction in which the pressure-receiving spring member 13 is contracted.SELECTED DRAWING: Figure 1

Description

  The present invention is provided on the side of a drive wheel unit such that a bogie, which is a transport vehicle having no power for drive travel, and a drive wheel unit including one wheel driven and driven by power, are connected. For a bogie of a drive wheel unit comprising a pressure receiving spring member interposed between a body on which the wheel is supported and the bogie so that a wheel pressure is generated on the wheel of the drive wheel unit by receiving a load of the bogie It relates to a connection mechanism.

  First, as the bogie connecting mechanism of the driving wheel unit, the connecting plate portion provided on the connecting arm side of the driving wheel unit and the bogie side are fixed so that the bogie and the driving wheel unit are coupled. And a pressure receiving spring member interposed to generate a required wheel pressure on the wheel, the connection plate being provided in a plate shape standing up and down, and the upper edge of the connection plate A tapered claw portion formed to be thin upward as the side of the surface facing the truck side is formed as an inclined surface is provided in the portion, and the connection plate is formed so that the tapered claw portion can be fitted and received. The applicant has proposed a coupling mechanism (Patent Document 1) between a drive wheel unit and a carriage provided with a groove-shaped claw receiving portion formed in a downward groove shape at the upper part of the receiving portion. Moreover, according to the present applicant, a connection structure of a motor-assisted drive wheel and a carriage (Patent Document 2) has been proposed.

  The bogie connecting mechanism of these drive wheel units is provided with a connecting plate portion on the side of the drive wheel unit, and is provided with a connecting plate receiving portion on the side of the bogie, and the connection between the bogie and the drive wheel unit is high It can be performed easily and reliably by one touch without requiring a degree, but can not be used when it is difficult to provide the connecting plate receiving portion on the side of the carriage. For example, in the case of a truck having a structure like a basket truck and used at various places, it is difficult to provide the connecting plate receiving portion on the side of the truck.

JP 2014-213720 (page 1) JP 2008-280021 A (page 1)

  The problem to be solved with respect to the connecting mechanism for the carriage of the drive wheel unit is that, when it is difficult to provide a connecting plate receiver such as an existing car, the coupling mechanism between the carriage and the drive wheel unit as previously proposed. It can not be used.

  Therefore, an object of the present invention is to provide a bogie connecting mechanism of a drive wheel unit that can be appropriately coupled to a car such as an existing cart by receiving a wheel pressure only by a mechanism provided on the side of the drive wheel unit. It is in.

  According to one aspect of the coupling mechanism for a carriage of the drive wheel unit according to the present invention, the carriage, which is a transport vehicle having no power for driving and traveling, and the drive wheel unit including one wheel driven and driven by power are coupled Of the main body on which the wheel is supported and the carriage so that wheel pressure is generated on the wheel of the drive wheel unit by being provided on the side of the drive wheel unit and receiving the load of the carriage. A carriage connecting mechanism of a drive wheel unit including a pressure receiving spring member interposed between the driving wheel unit, wherein the pressure receiving spring member is supported by the main body and received by the pressure receiving spring member, and vertical displacement is guided by a vertical motion guide A base table, a connecting table rotatably mounted about an upper and lower shaft in a state of being supported by the base table, and connected to a lower surface of an edge of a base portion of the carriage and connected thereto; , One end of which is pivotally attached to the main body, and the middle part is pivotally attached to the other of the link which is pivotally attached to the base table, and is rotatably disposed at the other end, When the coupling table when the drive wheel unit is coupled is positioned below the edge of the base of the carriage, the pressure receiving spring member is pushed in a direction to contract the base table so as to displace it downward. And a link lever operated to release the pressing force when pressure is applied to generate a wheel pressure on the wheel by receiving a load of the carriage.

  Further, according to one aspect of the connection mechanism for a carriage of the drive wheel unit according to the present invention, the side edge provided on the coupling table and raised and provided so as to constitute the side edge of the base of the carriage It may be characterized by including a connecting toggle clamp constituted by a four-bar link so as to connect the carriage with the raising plate portion interposed therebetween.

  Further, according to one aspect of the connection mechanism for a carriage of the drive wheel unit according to the present invention, the connection table and the base table are interposed between the connection table and the base table so as to return the rotated connection table to the initial position. It can be characterized by including a pivoting return spring for biasing.

  Further, according to one aspect of the bogie connecting mechanism of the drive wheel unit according to the present invention, a pressing force is applied to the link lever to displace the base table downward against the biasing force of the pressure receiving spring member. It is characterized in that a stopper mechanism is provided which engages with and holds the other end of the link lever.

  Further, according to one aspect of the bogie connecting mechanism of the drive wheel unit according to the present invention, the pressure receiving spring member is disposed at each of the portions of the main body located in front and rear in the traveling direction across the wheel. Can be characterized.

  According to the bogie connecting mechanism of the drive wheel unit according to the present invention, the wheel pressure can be appropriately coupled to the existing bogie such as a basket boll by only the mechanism provided on the side of the drive wheel unit. Play an important role.

It is a side view which shows the example of a connection mechanism of the trolley | bogie of the driving wheel unit which concerns on this invention. It is the top view which abbreviate | omitted the operation handle part of FIG. It is a front view of FIG. It is a side view which shows the state at the time of connecting with the trolley | bogie of the embodiment of FIG. It is a front view which shows the driving wheel unit of the state of FIG.

  Hereinafter, an embodiment of a bogie connecting mechanism of a drive wheel unit according to the present invention will be described based on FIGS. The bogie connecting mechanism of the drive wheel unit basically includes a bogie 90 (see FIG. 4), which is a transport vehicle having no power for driving and traveling, and a drive wheel unit including one wheel 12 that is driven and driven by power. 10 are provided on the side of the drive wheel unit 10 so that they are connected, and the wheel 12 is supported so that wheel pressure is generated on the wheel 12 of the drive wheel unit 10 by receiving the load of the bogie 90 The pressure receiving spring member 13 interposed between the main body 11 and the carriage 90 is provided, and in this embodiment, it is an electrically assisted drive wheel unit.

  Further, the drive wheel unit of this embodiment has one wheel 12 driven and driven by power on one end side (tip end side) of the main body 11, and the electric motor 14 which gives power to the wheel 12 is the other end of the main body 11. Built-in side (rear end side). Although the power of the electric motor 14 of this embodiment is transmitted to the wheel 12 by the chain 15, the present invention is not limited to this, and other power transmission means such as a gear mechanism or a timing belt may be used. Of course, it can be selectively adopted appropriately. Further, in the drive wheel unit of the present embodiment, the control handle portion 16 is provided on the upper portion of the handle shaft 16a, and a control device for achieving the function of the electric assist drive is mounted. (In this embodiment, a lithium ion battery) 17 is mounted.

  Furthermore, in the drive wheel unit according to the present embodiment, casters 18 which are auxiliary wheels that are not driven and driven by power are disposed in pairs at the other end (rear end) of the main body 11. The pair of casters 18, 18 are located on the left and right of the main body 11, and are configured to be able to stably travel. The wheel 12 is a main wheel with respect to the pair of casters 18, 18. In addition, the main body 11 of the present embodiment is provided in the form of a rectangular box frame whose cross section in a plan view is long in the traveling direction.

  A base table 20 is received by a pressure receiving spring member 13 supported and disposed by the main body 11, and displacement in the vertical direction is guided by the vertical movement guide 22. The vertical movement guide 22 of the present embodiment is provided with a cylindrical shape and the vertical movement columnar shaft portion 23 fixed so as to extend downward on the lower surface of the base table 20 is inserted, and the vertical movement columnar shaft portion The linear guide 23 can guide linear movement in the axial direction (vertical direction), and is fixed to the main body 11. Further, in the present embodiment, the pressure receiving spring member 13 is disposed between the upper surface of the portion of the main body 11 where the vertical movement guide 22 is disposed and the lower surface of the base table 20. In the present embodiment, a pair of vertical motion pressure receiving mechanisms including the pressure receiving spring member 13, the vertical motion columnar shaft portion 23, and the vertical motion guide 22 is provided, and is disposed before and after the wheel 12 as described later. . Moreover, although the coil spring is employ | adopted as the receiving pressure spring member 13 of the example of this form, it is also possible to use another elastic member, without being limited to this.

  Reference numeral 30 denotes a connection table, which is supported rotatably on the upper and lower shafts in a state of being supported by the base table 20, and is configured to be abutted and connected to the edge lower surface 92 of the base portion 91 of the carriage 90. ing. In the connection table 30 according to this embodiment, the rotation center columnar shaft portion 31 (see FIG. 2) provided in a cylindrical shape and fixed so as to extend downward to the lower surface at the central portion of the connection table 30 The bearing 34 disposed on the side of the base table 20 is rotatably supported by and held about the vertical axis, and can not come off and come off.

  A link lever 40 is provided in a lever shape, one end 41 is pivotally attached to the main body 11, and the middle portion 42 is pivotally attached to the other of the linkage link 45 pivotally attached to the base table 20, and the other end When the connection table 30 is disposed rotatably at the portion 43 and the drive wheel unit 10 is connected to the carriage 90 and is positioned below the edge of the base portion 91 of the carriage 90, the base table 20 is located on the lower side. The pressing force is applied in the direction in which the pressure receiving spring member 13 is contracted so as to displace it, and the upper surface of the connecting table 30 is brought into contact with the edge lower surface 92 of the base portion 91 of the carriage 90 to receive the load of the carriage 90 When the wheel pressure is generated at 12, it is configured to be operated so as to release the pressing force. Although the link lever 40 of this embodiment is formed in a bent band shape so as to have a plurality of corner portions so as to prevent interference with other members when rotating, Is configured to act as a bar of forceps.

  According to the bogie connecting mechanism of the drive wheel unit, it is possible to appropriately couple wheel pressure to the existing bogie 90 such as a basket boll by only the mechanism provided on the side of the drive wheel unit 10 Play an effect. That is, the connection table 30 is positioned below the edge of the base portion 91 of the carriage 90, and the pressing force on the pressure receiving spring member 13 by the link lever 40 is released. Is pressed against the lower surface of the edge of the base portion 91 of the carriage 90 by its elastic force. According to this, the reaction force due to the load of the bogie 90 is applied as a wheel pressure to the wheel 12 via the pressure receiving spring member 13, and the wheel 12 can be appropriately traveled without slipping.

  Further, in the present embodiment, the side edge raising plate portion 93 which is disposed on the connecting table 30 and is provided to be raised so as to constitute the side edge of the base portion 91 of the bogie 90 is connected to the bogie 90 In order to do this, a connecting toggle clamp 50 constituted by a four-bar link is provided. In this connection toggle clamp 50, a clamp action piece 52 having an L-shaped cross section is fixed to the action link 51 of the four-bar link, and a step provided on the connection table 30 by combined turning operation. The side edge raising plate portion 93 on the side of the carriage 90 can be sandwiched and connected between the side surface 32 of the portion. As shown in FIGS. 2 and 3, the clamp action piece 52 is provided with a notch 53 so that interference with the support post 94 of the cart 90 can be appropriately avoided.

  According to the connecting toggle clamp 50, the drive wheel unit 10 and the carriage 90 can be properly connected by a simple and highly durable configuration, and by the simple lever turning operation of the four-bar link. The connection means between the connection table 30 and the base portion 91 of the carriage 90 is not limited to the present embodiment, and it is needless to say that a known connection mechanism can be appropriately and selectively adopted.

  Further, in the present embodiment, there is provided a rotation return spring 60 interposed between the connection table 30 and the base table 20 and urging the rotated connection table 30 to return to the initial position. The rotation return spring 60 according to this embodiment is constituted by a coil spring having a pair of linearly extending end portions 61, 61 whose both ends functioning as a torsion spring are linearly extended outward. The pair of linearly extending end portions 61 and 61 are positioned to sandwich the upward protrusion 21 fixed to the base table 20 and the downward protrusion 33 fixed to the connection table 30.

  According to this, the connection table 30 is rotated to change the connection angle (horizontal angle around the vertical axis) in a swing state, for example, to change the direction of the drive wheel unit 10 while traveling. Although it is necessary, it is possible to receive the movement with appropriate elastic force and restrict it not to be a sudden movement, and at the time of separation from the carriage 90, it can return to the initial rotation position as soon as possible. The connection to the carriage 90 can be properly prepared. The pivoting return spring 60 is not limited to the present embodiment, and it is of course possible to appropriately and selectively adopt known elastic members.

  Further, in the present embodiment, the other end 43 of the link lever 40 is in a state in which the base lever 20 is displaced downward against the biasing force of the pressure receiving spring member 13 by applying a pressing force to the link lever 40. A stopper mechanism 70 for engaging and holding is provided.

  In a specific configuration of the stopper mechanism 70 according to this embodiment, a rotation stopper piece having one end 72 pivotally attached to the main body 11 and the other end provided with the engagement claw 73 rotatably provided. 71 and a spring member 75 disposed between the rotation stopper piece 71 and the main body 11. According to this, the horizontal plate-like step-in operation portion 44 formed at the other end 43 of the link lever 40 is turned downward by stepping on with a foot, whereby the operation of the link lever 40 causes When the base table 20 is displaced downward against the biasing force of the pressure receiving spring member 13, the inner side 44a of the side plate-like stepping-in operation portion 44 presses the slope formed on the engaging claw portion 73. And the pivoting stopper piece 71 is pivoted so as to push away against the biasing force of the spring member 75, and at the stage when the engaging hook 73 is pushed away, the step of the engaging hook 73 is By engaging in a state in which the inner side 44a is fitted, the link lever 40 can be locked so as to be prevented from being displaced upward.

  Further, when releasing this, the rotation stopper piece 71 is resisted against the biasing force of the spring member 75 by stepping on the release plate 74 provided in a state of being integrally fixed to the rotation stopper piece 71. By turning it so as to push it away, the locked state can be released at a stretch by releasing the engagement of the engaging claw portion 73 with the horizontal plate-like step-in operation portion 44, which can be easily performed. . That is, the link lever 40 is operated to rotate upward by the biasing force of the pressure receiving spring member 13 by releasing the engagement of the engagement claw portion 73 with the horizontal plate-like stepping in operation portion 44. And the lock state is released.

  The stopper mechanism 70 can easily and properly lock the link lever 40 by an operation of stepping on the horizontal plate-like depression operation portion 44 with a foot, and by an operation of depressing the release plate 74 by a foot, the link lever The lock release operation can be performed easily and properly, and the structure is simple, durable, and has a highly functional structure that is easy to operate. The stopper mechanism 70 is not limited to the present embodiment, and it is needless to say that a known stopper mechanism can be appropriately and selectively adopted. Moreover, although the coil spring is employ | adopted as the spring member 75 of the example of this form, it is also possible to use another elastic member, without being limited to this.

  Further, in the embodiment, the pressure receiving spring member 13 is disposed at each of the portions of the main body 11 located in front and rear of the wheel 12 in the traveling direction. That is, a pair of pressure receiving spring members 13 is disposed across the wheel 12 in the longitudinal direction of the main body.

  According to this, the base table 20 can be received and held by the pressure receiving spring member 13 in a well-balanced manner, and the components can be arranged extremely compactly and rationally. It can be set as the composition which can be connected, giving. The number and the arrangement position of the pressure receiving spring members 13 are not limited to those in this embodiment, and it is needless to say that they can be appropriately modified according to the use mode.

  Further, in addition to the above configuration, in the present embodiment, the angle adjustment mechanism 81 of the handle shaft 16a, the height adjustment mechanism 82 of the clamp action piece 52, and the like can be suitably used according to the usage mode at the site. A tension adjustment mechanism of the chain 15 by the horizontal position adjustment mechanism 83 of the electric motor 14 is provided. Furthermore, in addition to the normal handle 16b gripped by the left and right hands, the operation handle portion 16 is provided with a handle switch 16c, which can improve operability.

  Although the present invention has been variously described with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is

DESCRIPTION OF SYMBOLS 10 driving wheel unit 11 main body 12 wheel 13 pressure receiving spring member 14 electric motor 15 chain 16 operation handle part 16a handle shaft 16b handle handle 16c handle switch 17 battery 18 caster 20 base table 21 upward projection part 22 vertical motion guide 23 vertical motion columnar shaft Reference Signs List 30 connection table 31 rotation center columnar shaft portion 32 side surface 33 step portion downward projection 34 bearing 40 link lever 41 one end 42 middle portion 43 other end 44 horizontal plate-like depression operation portion 44 a inner side 45 linkage link 50 for connection Toggle clamp 51 Action link 52 Clamp action piece 53 Notch 60 Cutback spring 61 Linear extension end 70 Stopper mechanism 71 Stopper piece 72 One end side 73 Engaging claw 74 Release plate 75 Spring member 81 Angle adjustment mechanism 82 Height Adjustment Mechanism 8 Horizontal position adjusting mechanism 90 carriage (car bogie)
91 pedestal portion 92 edge lower surface 93 side edge rising plate portion 94 post

Claims (5)

The load of the truck is provided on the side of the drive wheel unit so that the truck, which is a transport vehicle having no power for driving and the drive wheel unit including one wheel driven by power, is connected. A coupling mechanism for a drive wheel unit comprising a pressure receiving spring member interposed between a body on which the wheel is supported and the carriage so that a wheel pressure is generated on the wheel of the drive wheel unit by receiving ,
A base table which is received by the pressure receiving spring member supported and disposed on the main body and whose vertical displacement is guided by a vertical movement guide;
A connecting table mounted rotatably on the upper and lower shafts in a state of being supported by the base table and brought into contact with and connected to the lower surface of the edge portion of the base portion of the carriage;
It is provided in the shape of a lever, one end is pivotally attached to the main body, the middle portion is pivotally attached to the other of the link which is pivotally attached to the base table, and is disposed rotatably at the other end. When the coupling table when the drive wheel unit is coupled to the carriage is positioned below the edge of the platform of the carriage, the pressure receiving spring member is contracted so as to displace the base table downward. And a link lever that is operated to release the pressing force when the wheel is received with a load from the carriage to generate a wheel pressure on the wheel. Bogie connection mechanism.   A four-bar link is disposed on the connection table, and is connected to the carriage by sandwiching a side edge raising plate portion which is provided to be raised so as to constitute a side edge of the platform of the carriage. The connecting mechanism for a truck of a drive wheel unit according to claim 1, further comprising a connecting toggle clamp.   3. The apparatus according to claim 1, further comprising: a rotation return spring interposed between the connection table and the base table and biasing the rotated connection table to return to the initial position. Truck connecting mechanism for drive wheel units.   A stopper mechanism which engages with and holds the other end of the link lever in a state in which a pressing force is applied to the link lever to displace the base table downward against the biasing force of the pressure receiving spring member. The coupling mechanism for a truck of a drive wheel unit according to any one of claims 1 to 3, comprising:   The truck of a driving wheel unit according to any one of claims 1 to 4, wherein the pressure receiving spring member is disposed at each of the portions of the main body located on the front and back of the traveling direction across the wheel. Connection mechanism.