JP3203367U - Vertical heavy truck - Google Patents

Abstract

[PROBLEMS] To provide a cart that allows a vertical heavy object to be transported smoothly on the floor surface and that does not slide in the horizontal direction even if the direction is vigorously changed. To do. A trolley body 1 having a frame structure, a main wheel 27 attached to a lower end side of the trolley body, and a base end portion of the trolley body at a substantially central portion of the trolley body via a first reference support shaft 16A. The supported angle adjustment support arm 30, the auxiliary wheel 25 attached to the free end of the angle adjustment support arm and having a smaller diameter than the main wheel, and the angle adjustment support arm provided at least in the main body of the carriage and the first reference The front side left and right linear support portions that comprise a first lock device having an engagement portion 45 that can lock the angle adjustment support arm at an arbitrary selected position when the support shaft is rotated as a fulcrum. The non-slip member 20 for the vertical heavy object Y is integrally attached to each. [Selection] Figure 14

Description

  The present invention relates to a bogie for vertical heavy objects such as vending machines and lockers.

  Contrasting with the configuration of the present invention, Patent Document 1 states that “a bogie body having a frame structure having a projecting receiving plate at the lower end portion of the frame and a handle portion at the upper end portion of the frame, and the lower end of the bogie body. A pair of left and right main wheels attached to the part side, a pair of left and right angle adjustment support arms whose base ends are pivotally supported via a first reference pivot at a substantially central portion of the carriage body, and A pair of left and right auxiliary wheels each attached to a free end of the angle adjustment support arm and having a diameter smaller than that of the main wheel, and provided at least on the carriage body, and the angle adjustment support arm serving as the first reference support shaft Vertical type of a vending machine, a locker or the like having a first locking device having an engaging portion that can lock the angle adjustment support arm at an arbitrary selected position when rotating with an arcuate locus on a fulcrum. Heavy truck "is described. This patent document 1 has been proposed by the applicant.

  The subject of the idea of this patent document 1 is to reduce the labor of an operator especially when climbing stairs when carrying a vertical heavy article on a carriage. Therefore, the configuration of the pair of left and right main wheels and the pair of small diameter left and right auxiliary wheels of the bogie main body is complicated so that the bogie can smoothly climb the stairs (the main wheel has a substantially triangular shape). And a rotating plate and a total of three driving wheels, etc. The auxiliary wheel is also composed of a plurality of driven wheels, a flexible belt-like caterpillar, etc.).

  Further, the cart of Patent Document 1 tilts a vertical heavy object on the left and right linear support portions on the front side constituting the frame (the left and right frame portions on the upper side when the cart runs slightly inclined). If you change the direction of the carriage vigorously, there was a risk of sliding in the left-right direction of the carriage. Furthermore, although the main wheels and auxiliary wheels travel smoothly when pushing or pulling in a linear direction, these main wheels and auxiliary wheels do not have a direction changing function, so they are optional according to the traveling direction of the carriage. Can't turn. Therefore, it is not suitable for carrying a vertical heavy object on the floor. In addition, since the angle of the main wheel could not be adjusted, there was a problem that the main wheel could not be housed together with the auxiliary wheel on the frame side of the carriage body.

JP 2001-287653 A

  In view of the drawbacks of Patent Document 1, the first object of the present invention is to make it possible to carry a vertical heavy object on the floor surface smoothly and to change the direction of the carriage vigorously. This is to prevent the vertical heavy object from sliding in the left-right direction of the carriage. The second object is that when a vertical heavy load places a considerable weight load on the auxiliary wheel or the handle portion of the frame, the worker can easily attach the free caster to the carriage to Can be avoided, and travel conversion can be facilitated. The third object is to change the position of the main wheel as well as the auxiliary wheel, so that the vertical heavy object can be transported in a desired posture, and when the carriage is not used, the frame side of the carriage body is used. The main wheel can be accommodated together with the auxiliary wheel.

  The above and other objects and novel features of the present invention will become more fully apparent when read in light of the drawings. However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  In order to achieve the above object, a vertical heavy truck according to the present invention has a frame main body having a protruding receiving plate at the lower end of the frame and a handle at the upper end of the frame. A pair of left and right main wheels attached to the lower end side of the main body, and a pair of left and right angle adjusting support arms whose base ends are pivotally supported by a substantially central portion of the carriage main body via a first reference support shaft. A pair of left and right auxiliary wheels attached to the free ends of the angle adjustment support arms and having a diameter smaller than that of the main wheel, and provided at least in the carriage body, and the angle adjustment support arms are the first adjustment arms. A front surface that includes a first locking device having an engagement portion that can lock the angle adjustment support arm at an arbitrary selected position when rotating with an arcuate trajectory about a reference support shaft. Vertically on the left and right linear supports Each anti-slip member for heavy, characterized in that mounted integrally.

  In the above-described configuration, the pair of left and right universal casters can be detached at least either at the free end portion of the angle adjustment support arm or at the fitting portion fixed to the horizontal movable shaft of the free end portion of the angle adjustment support arm. The main wheel and the free caster are slid simultaneously with respect to the floor surface during traveling. The main wheel is attached to a free end portion of a second angle adjustment support arm whose base end portion is pivotally supported via a second reference shaft at a portion near the lower end portion of the carriage main body. The angle adjustment support arm is locked by a second lock device having a positioning plate that selectively engages at least one of a plurality of engagement pins that protrude from the vertical side plate of the carriage body with a required interval. It is characterized by that.

As is clear from the above description, the present invention has the following effects.
(1) The invention described in claim 1 makes the configuration of the auxiliary wheel and the auxiliary wheel simple, enables a vertical heavy object to be carried on the floor surface and transported smoothly, and Even if the direction of the carriage is vigorously changed, it is possible to prevent the vertical heavy object from sliding in the left-right direction of the carriage.
(2) The device according to claim 2 is provided with a pair of left and right fittings at least either on a free end portion of the angle adjustment support arm or fixedly attached to a horizontal movable shaft of the free end portion of the angle adjustment support arm. Since the main wheel and the free caster can be slid simultaneously with respect to the floor surface during travel, the vertical heavy load is equivalent to the auxiliary wheel or the handle of the frame. In such a case (when the vertical heavy object is heavy), the worker can easily attach the free caster to the carriage, so that the weight load can be avoided and the carriage is desired. Since the direction can be instantaneously converted, the work efficiency can be improved.
(3) According to the invention described in claim 3, the main wheel has a second angle adjusting support arm whose base end is pivotally supported via a second reference shaft at a portion near the lower end of the carriage body. A positioning plate that is attached to the free end and selectively engages with at least one of a plurality of engaging pins that project from the vertical side plate of the carriage body with a required interval. Since the position of the main wheel is changed as well as the auxiliary wheel, the vertical heavy object can be transported in a desired posture and when the carriage is not used. The main wheel can be housed together with the auxiliary wheel on the frame side of the carriage body.

1 to 14 are explanatory views of an embodiment of the present invention.
The front view seen from the support part side of the frame. The rear view seen from the bottom side of the frame. The right view on the basis of FIG. Explanatory drawing from the right side view of a flame | frame. (A) Explanatory drawing from the right side view of the state which the main wheel is located in the protrusion receiving plate side (storage side). (B) Explanatory drawing from the right side view of the state in which the main wheel is displaced and located on the running posture side (auxiliary wheel side). It is explanatory drawing of the 2nd locking device for main wheels, (a) is the state in which the positioning plate is engaging with at least one engagement pin, (b) is a positioning plate by lifting the upward operation protrusion of the operation part Explanatory drawing when removing from one engagement pin. (A) Explanatory drawing from the right side view of the state in which the auxiliary | assistant wheel is located in the handle part side (storage side). (B) Explanatory drawing from the right side view of the state in which the auxiliary wheel is displaced and located on the running posture side (main wheel side). Explanatory drawing of the 1st locking device 40 for auxiliary wheels. The perspective view of a universal caster. FIG. 4 is a partial schematic cross-sectional explanatory diagram in a state where a free caster is attached to the bottom side of the angle adjustment arm 30. An explanatory view of a state in which a protruding receiving plate is inserted into a gap between a bottom surface and a floor surface of a vertical heavy object (for example, a vending machine), and the cart is in a substantially vertical state (with a free caster attached). In FIG. 11, it is explanatory drawing which made the trolley in the tilted state (a universal caster is attached). The schematic explanatory drawing of the state which attached the free caster at the time of driving | running | working. The schematic explanatory drawing of the state which does not attach a free caster at the time of driving | running | working.

  Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. X is a cart capable of carrying a vertical heavy object Y such as a vending machine or a locker (see, for example, FIGS. 13 and 14). 1 is a front view of the carriage X, FIG. 2 is a rear view of the carriage X, and FIG. 3 is a right side view of the carriage X. The front view, the rear view, and the like show the carriage X in a substantially vertical state with respect to the floor surface F. Therefore, for example, FIG. 11 shows a state in which the carriage X is set in a substantially vertical state with respect to one side surface of the vertical heavy article Y and the vertical heavy article Y is to be placed on the carriage X.

  This carriage X basically has a frame structure having a protruding receiving plate 14 at the lower end portion of the frame-like frame in a front view and a handle portion 2d for pushing or pulling to the upper end portion of the frame-like frame. The main body 1, a pair of left and right main wheels 27 attached to the lower end side of the carriage body, and a base end portion of the carriage body 1 is pivotally supported via a first reference spindle 16A at a substantially central portion of the carriage body 1. A pair of left and right elongated rod-shaped angle adjustment support arms 30, a pair of left and right auxiliary wheels 25 attached to the free ends of these elongated rod-shaped angle adjustment support arms and having a smaller diameter than the main wheel, and at least the When the elongate angle adjusting support arm 30 provided on the cart body 1 rotates with an arcuate trajectory about the first reference support shaft 16A, the elongate angle adjusting support arm 30 Engagement part that can be locked in the selected position (eg And a first locking device 40 having a lock pin).

  The cart body 1 has a pair of left and right vertically elongated frames 2 and 2 as shown in FIG. FIG. 4 shows a frame 2 on the right side of the cart body 1 and has the same configuration as the frame 2 on the left side of the cart body 1. First, the configuration of the right frame 2 will be described with reference to FIG. The configuration of the left frame 2 uses that of the right frame 2.

  Now, the frame 2 is formed by appropriately bending a substantially tubular pipe material, and is formed into a vertically long loop-shaped frame as a whole. In the loop-shaped frame, a plurality of vertical side plates, a plurality of reinforcing horizontal rods, and the like are formed. Is welded, so the bogie body 1 is a frame structure.

  The frame 2 will be described in detail. 2a is a front vertical column portion on the front (upper) side, 2b is a rear vertical column portion on the back (bottom) side, 2c is a connecting lower end portion of the rear vertical column portion, and 2d is a front vertical column. An arc-shaped handle portion that connects the column portion and the rear vertical column portion. The front vertical column part 2a has a vertical lower end 3 and a vertical upper end 4 which is positioned in the same vertical direction as the vertical lower end and is longer than the vertical lower end. Between the part 3 and the vertical upper end part 4 is a laterally concave front continuous part 5.

  On the other hand, the rear vertical column portion 2b facing the front vertical column portion 2a with a predetermined interval includes the above-described connecting lower end portion 2c welded to a portion near the lower end portion of the front vertical column portion 2a, and The rear continuous portion 6 is substantially opposed to the laterally concave front continuous portion 5, and the upper end portion of the rear continuous portion 6 is bent into the front vertical column portion 2 a and welded to the front continuous portion 5. The upper end 7 is formed.

  Thus, 8 is a substantially vertical bearing plate fixed to the vertical lower end portion 3 of the front vertical column portion and the connecting lower end portion 2c of the rear vertical column portion, and 9 and 10 are sideways to the front contiguous portion 5 having a horizontal recess shape. Upper and lower vertical side plates 13, which are provided via an intermediate reinforcing horizontal rod 11 between the concave rear continuous portions 6, are a vertical upper end 4 of the front vertical column portion and a vertical upper end of the rear vertical column portion. A plurality of reinforcing horizontal rods provided between the portions 12 and 14 are projecting receiving plates projecting in a substantially horizontal state forward from the vertical lower end portion 3 of the front vertical column portion.

  Further, the configuration of the bearing plate 8 and the upper and lower vertical side plates 9 and 10 will be described. A shaft hole 15 for a small auxiliary wheel is formed in the bearing plate 8. Further, a first reference hole 16 for the first reference support shaft is formed in the upper vertical side plate 9, and a plurality of position selection members are formed so as to draw a substantially arc-shaped curvature concentrically with the first reference hole 16. A joint hole 17 is formed with a required interval. Further, a second reference hole 18 for the second reference support shaft is also formed in the lower vertical side plate 10, and a mounting hole 19 for an engagement pin is formed vertically with a predetermined distance from the second reference hole 18. Has been.

  In addition, in the present embodiment, the left and right linear support portions on the front side constituting the frame-like frame, that is, the short vertical lower end portion 3 and the long vertical upper end portion 4 of the left and right front vertical column portions 2a are respectively provided vertically. Each of the anti-slip members 20 for mold heavy objects is integrally mounted. These anti-slip members 20 are desirably rubber band-like wound bodies.

  Next, a pair of left and right auxiliary wheels 25, a pair of left and right small auxiliary wheels 26, and a pair of left and right main wheels 27 will be described with reference to the rear view of FIG. Referring to FIG. 2, the pair of left and right auxiliary wheels 25 are positioned on the upper end side of the frame 2, while the pair of left and right small auxiliary wheels 26 and the pair of left and right main wheels are positioned on the lower end of the frame 2. Wheel 27.

  First, the pair of right small auxiliary wheels 26 are located inside the pair of left and right main wheels 27. In other words, the pair of left and right small auxiliary wheels 26 that are in contact with the floor surface F are provided inside the left and right bearing plates 8 and 8 fixed to the lower end of the frame 2. The small auxiliary wheels 26 are attached to both ends of a horizontal rear end shaft 22 that is mounted on the bearing plate 8 via the shaft hole 15, and the cart X is tilted when the cart X is tilted from a substantially vertical state or a slightly vertical state. Fulfills the function of stably supporting

  Next, the pair of left and right auxiliary wheels 25 are provided with a first elongated hook-shaped angle adjusting support arm 30 pivotally supported by the upper vertical side plate 9 instead of directly on the vertical side plate 9 on the frame 2. It is attached to the bogie main body 1 via. Now, with reference to FIG. 2 and another drawing (for example, FIG. 3), the angle adjusting support arm 30 in the shape of the eaves is substantially at the center of the main body of the carriage and the base end thereof is the first reference support shaft 16A. It is attached via a horizontal movable shaft 31 that is supported on the free end of the elongated rod-shaped angle adjusting support arm 30. Each auxiliary wheel 25 has a smaller diameter than the main wheel 27. In addition, a first lock device 40 for an eaves-shaped angle adjustment support arm is appropriately provided inside the cart body 1.

  The first locking device 40 is configured to arbitrarily select the long hook-shaped angle adjustment support arm 30 when the long hook-shaped angle adjustment support arm 30 rotates while drawing an arcuate locus with the first reference support shaft 16A as a fulcrum. It has an engaging part 45 that can be locked in position. The lock pin 45 as the engagement portion is connected to any one of the position selection engagement holes 17 of the upper vertical side plate 9 through a through hole 33 formed in a portion near the base end portion of the elongated rod-shaped angle adjustment support arm 30. Engage and disengage.

  Here, the configuration of the first locking device 40 will be briefly described with reference to FIG. In FIG. 8, reference numeral 30 denotes a pair of left and right elongated angle-adjusting support arms. A shaft hole 32 is formed at the base end of the arm, and a portion near the base end of the upper vertical side plate 9 described above. A through-hole 33 that selectively coincides with the position-selecting engagement hole 17 is formed, and a fitting portion 50 for a free caster 51, which will be described later, is integrally formed at the free end (lower end in FIG. 8). The horizontal movable shaft 31 is integrally installed.

  Reference numeral 41 denotes a long plate-shaped support plate fixed to the angle adjusting arm 30 so as to intersect with the left and right long rod-shaped angle adjusting arms 30, and a flat U-shaped puller is provided at the center of the support plate 41. A stopper frame 43 for 42 is provided. In addition, the support plate 41 is provided with a pair of spring receiving plates 44 having through holes at portions near both ends thereof. The lock pin 45 as the lock means or the engagement portion described above is urged so as to always engage with the position selection engagement hole 17 by a spring 46 wound around the lock pin. The lock pin 45 is provided so as to be retractable by the puller 42 through a guide roller 47 and a pulling means (for example, a wire) 48 disposed on the inner end side thereof.

  In the above configuration, the position (angle) of the angle adjustment arm 30 is adjusted in consideration of the inclination angle of the carriage body 1. In this case, when the pulling hand 42 is pulled, the lock pin 45 having the pair of left and right flange portions 45a retreats against the spring force of the spring 46, so that the lock pin 45 is replaced with the desired position selection engagement hole 17. be able to.

  Here, the structure of the fitting part 50 and the universal caster 51 will be described with reference to FIGS. In the present embodiment, the fitting portion 50 fixed at least to the free end portion of the elongate angle adjusting support arm 30 or fixed to the horizontal movable shaft 31 provided on the free end portion of the elongate angle adjusting support arm 30. A pair of left and right universal casters 51 can be detachably attached to any of the above, and the handle 2d can be pushed or pulled while simultaneously sliding the main wheel 27 and the universal caster 51 with respect to the floor F during traveling. .

  The fitting portion 50 can be arbitrarily designed and changed in shape, such as a support box having a lower end opening, a support base having a U-shaped cross section, etc., but in the embodiment, the adjustment angle of the long saddle-shaped angle adjustment support arm 30, As a result of various ingenuity with respect to ease of attachment / detachment, prevention of falling of the free caster, etc., a support base or a sandwiching member having a U-shaped cross section is employed. The free caster 51 has a mounting base 52 that is inserted into a support base having a U-shaped cross section at the upper end, and a rotary support that is pivotally mounted below the mounting base via a bearing 53 and a support shaft 54. It consists of a plate 55 and a small wheel 57 attached to the rotating support plate 55 via a wheel support shaft 56.

  Next, the pair of left and right main wheels 27 are larger than the small auxiliary wheels 26 and the auxiliary wheels 25, and are positioned outside the left and right vertically long frames 2 and 2, respectively. In the embodiment, each main wheel 27 has a second eaves-shaped angle adjustment support arm 60 whose base end is pivotally supported via a second reference shaft 18A at a portion near the lower end of the carriage body 1. The second elongate angle adjusting support arm 60 attached to the free end is selected from a plurality of engaging pins 19A projecting from the vertical side plate 10 under the carriage body 1 with a required interval. It can be locked with a second locking device 61 having a positioning plate 62 that engages it. 5A is an explanatory view from the right side view of the state in which the main wheel 27 is located on the protruding receiving plate 14 side (storage side), while FIG. FIG. 6 is an explanatory view of the second locking device 61 for the main wheel, and FIG. 6 (a) shows 2 in a state where the position is displaced and is located on the running posture side (auxiliary wheel 25 side). The state in which the positioning plate 62 is engaged with the individual engaging pins 19A, (b) is an explanatory view when the operating portion 63 of the second locking device 61 is lifted to remove the positioning plate 62 from the engaging pin 19A. . The second lock device 61 for the main wheel will be briefly described with reference to the rear view of FIG. 2 and FIGS. 5 and 6. The operation unit 63 according to the embodiment includes a horizontal rotation shaft 63a that is horizontally installed near a free end portion of the left and right second elongated rod-shaped angle adjustment support arms 60, and a substantially central portion of the horizontal rotation shaft 63a. The pair of left and right positioning plates 62 are in surface contact with the inner wall surface of the second elongated rod-shaped angle adjusting support arm 60. It is integrally fixed to both ends of the horizontal rotation shaft 63a.

  6A, the horizontally-long polygonal positioning plate 62 is pivotally supported by the horizontal rotating shaft 63a at the lower portion of the center thereof, and is formed in a long bowl shape with the horizontal rotating shaft 63a as a reference. A pair of notched engaging grooves 64 are formed in the lower part of both end portions 62a, 62a projecting symmetrically from the angle adjusting support arm 60 in the left-right direction upward from the lower end. Further, referring to the rear view of FIG. 2, a spring end support pin 66 for supporting the lower end portion of the tension spring 65 at a position above the horizontal rotation shaft 63a, and a position positioned above the spring end support pin and long. A second reference shaft 18 </ b> A that supports the upper end portion of the tension spring 65 provided at a portion near the base end portion of the hook-shaped angle adjustment support arm 60 is provided.

  In the above configuration, when the left and right cutout engagement grooves 64 of the positioning plate 62 are engaged with at least one engagement pin 19A of the plurality of engagement pins, the tensile force of the tension spring 65 is increased. Since it acts on the positioning plate 62, the positioning plate 62 is locked (locked) to the engaging pin 19A in a state in which the positioning plate 62 holds the vanilla.

  Therefore, when changing the angle of the long hook-shaped angle adjustment support arm 60, as shown in FIG. 6B, when the upward operation protrusion 63b of the operation unit 63 is lifted as indicated by an arrow, the operation unit Since the positioning plate 62 integrated with 63 rotates about the horizontal rotation shaft 63a, the engagement state between the notch-like engagement groove 64 and the engagement pin 19A can be released.

  Therefore, in this embodiment, not only the auxiliary wheel 25 but also the position of the main wheel 27 is converted, whereby the vertical heavy object Y can be transported in a desired posture, and when the carriage is not used, the carriage The main wheel 27 can be accommodated together with the auxiliary wheel 25 on the frame 2 side of the main body 1.

  The present invention is used as a cart capable of transporting a vertical heavy object Y such as a vending machine or a locker.

X ... cart, Y ... vertical heavy goods,
1 ... cart body, 2 ... frame, 2d ... grip part,
3, 4 ... linear support,
8 ... bearing plate,
9 ... vertical side plate on top,
10 ... Lower vertical side plate,
14 ... Projection receiving plate,
16 ... 1st reference hole, 16A ... 1st reference spindle,
18 ... second reference hole, 18A ... second reference axis,
19A ... engaging pin,
20: Non-slip member,
25 ... auxiliary wheels,
26 ... small auxiliary wheels,
27 ... Main wheel,
30 ... Angle adjustment support arm,
31 ... Horizontal movable shaft,
40. First locking device,
45 ... engaging portion,
60 ... second locking device, 62 ... positioning plate,
50 ... fitting part,
51 ... Swivel caster,
63 ... operation unit,
64: Notched engaging groove.

Claims (3)

A cart body having a projecting receiving plate at the lower end of the frame and a handle at the upper end of the frame, a pair of left and right main wheels attached to the lower end side of the cart body, and the cart A pair of left and right angle adjustment support arms whose base ends are pivotally supported via a first reference support shaft at a substantially central portion of the main body, and are attached to the free ends of these angle adjustment support arms, respectively; A pair of left and right auxiliary wheels having a smaller diameter than the wheels, and at least the angle adjustment support arm provided on the carriage main body and the angle adjustment support arm rotates in an arcuate locus with the first reference support shaft as a fulcrum; A first locking device having an engaging portion that can lock the supporting arm at an arbitrary selected position, and a non-slip member for a vertical heavy object is provided on the left and right linear supporting portions constituting the frame. It was attached to each one Carriage of a vertical heavy characterized. 2. The pair of left and right universal casters according to claim 1, wherein at least one pair of left and right universal casters is detached from a fitting portion fixed to at least a free end portion of the angle adjustment support arm or fixed to a horizontal movable shaft of the free end portion of the angle adjustment support arm. A vertical heavy-duty cart that is freely mounted and allows the main wheel and the free caster to slide simultaneously with respect to the floor surface during traveling. 3. The free angle of the second angle adjusting support arm according to claim 1 or 2, wherein the main wheel is supported at a position near the lower end of the carriage main body through a second reference shaft. A positioning plate that is attached to the end and selectively engages with at least one of a plurality of engaging pins that project from the vertical side plate of the carriage body with a required interval. It is locked with the 2nd locking device which has this.

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