JP2008087551A - Luggage carrier - Google Patents

Abstract

An object of the present invention is to provide a luggage carrier cart that can reduce the area of a cart storage area.
SOLUTION: A load carrying cart 70 has an uppermost shelf 71, 2 when the uppermost shelf 71, the second shelf 14, the third shelf 15 and the lower shelf 16 are in a horizontal posture. The other end of each of the shelf 14 of the stage, the shelf 15 of the third stage, and the shelf 16 of the lowermost stage is projected from the base plate 72 by a projecting dimension L4.
[Effect] Compared with the case where the base plate 72 is extended to the other end of the uppermost shelf 71, the second shelf 14, the third shelf 15 and the lowermost shelf 16, the depth of the base plate is the projection dimension L4. The dimensions can be reduced. The area of the carriage storage area can be reduced by the protruding area obtained by multiplying the protruding dimension L4 by the width dimension of the base plate.
[Selection] Figure 9

Description

  The present invention relates to an improvement of a luggage carrier.

There are two types of carts that are used for carrying goods: a self-propelled cart that travels with a drive source, and a human-powered cart that does not have a drive source. Although this human-powered cart is generally simple in structure, various improvements have been proposed (see, for example, Patent Document 1).
Utility Model Registration No. 3097198 (Figure 1)

Patent document 1 is demonstrated based on the following figure.
FIG. 12 is a diagram for explaining the basic configuration of the conventional technology. The transport cart 100 has four cart frame posts 102 (... are plural, the same applies hereinafter) and 2 standing on the cart base 101. Shelf support posts 103, 103, four carriage frame posts 102 ... and shelf support posts 103, 103 attached to the upper ends of the support posts 104 ..., shelf support posts 103, 103 Four-stage flip-up shelves 105 that pivot the portion up and down freely, and three spacing members 106 that are provided vertically downward on the lower surfaces of these flip-up shelves 105. A pair of elastic bodies 108 (shown only on the front side) for connecting the outer frame 107 of the flip-up shelf 105... And the bogie frame columns 102 102 on the back side; A stopper provided between the column connecting member 104 and the column connecting member 104 And 09, comprising a plurality of casters 111 ... provided in the lower portion of the carriage base 101.

  In the transport carriage 100, if the width is W, the depth dimension of the carriage base 101 is D1, and the dimension between the carriage frame columns 102 and 102 (upper depth dimension) is D2, D1 is larger than D2.

When the transport cart 100 is not used, it is stored together in a cart storage area provided at a corner of the factory.
The area of the trolley storage area is determined based on a value obtained by multiplying the number of trolleys by the width W of the trolley and the depth dimension D1.
If the depth dimension D1 is large, the area of the carriage storage area needs to be proportionally increased. If the area of the carriage storage area increases, the effective area used for work in the factory decreases.

  However, the larger the effective area for work, the better. Therefore, the development of a transport cart that can reduce the area of the cart storage area is required.

  This invention makes it a subject to provide the conveyance trolley (luggage carrier trolley) which can reduce the area of a trolley | bogie storage place.

  According to the first aspect of the present invention, a front post and a rear post are set up on a base plate having a front wheel and a rear wheel, one end of a plurality of shelves is hinged to the rear post, and the other end of the plurality of shelves is received By providing the stopper on the front support column, the plurality of shelves arranged apart from each other in the vertical direction can be placed in a horizontal posture or an inclined posture.When the shelf is in a horizontal posture, the other end of the shelf is It is characterized by protruding from the base plate.

  In the invention which concerns on Claim 2, the other end of the shelf was comprised so that it could fold about all or one of the uppermost stages.

  The invention according to claim 3 is characterized in that the inclination angle of the second shelf from the bottom is larger than the inclination angle of the other shelves.

  The invention according to claim 4 is characterized in that the front wheel is provided on the base plate so as to be movable forward in the horizontal direction.

  The invention according to claim 5 is characterized in that the base plate is provided with a tray for receiving falling objects falling from an inclined shelf.

  In the invention according to claim 1, when the shelf is in a horizontal posture, the other end of the shelf is projected beyond the base plate, so that the other end of the shelf is longer than when the base plate is extended to the other end of the shelf. However, the depth dimension of the base plate can be reduced by the dimension that protrudes from the base plate (hereinafter referred to as the projecting dimension). In other words, the area of the cart storage area can be reduced by the projected area obtained by multiplying the projected dimension by the width dimension of the base plate. Therefore, according to claim 1, it is possible to provide a luggage carrier cart that can reduce the area of the cart storage area.

  In the invention which concerns on Claim 2, the other end of the shelf was comprised so that it could fold about all or one of the uppermost steps. Since the other end of the shelf can be entirely folded, when the shelf is in a horizontal position, the depth dimension of the luggage carrier can be reduced by the folded length compared to when the shelf is not folded. Further, since the other end of the shelf can be folded at one of the uppermost stages, the height of the luggage carrier cart can be reduced when the shelf is inclined. Therefore, according to claim 2, it is possible to reduce the size of the luggage carrier cart.

  In the invention which concerns on Claim 3, the inclination angle of the shelf of the 2nd step from the bottom was made larger than the inclination angle of the other shelf. In a wheeled carriage, an operator needs to bend down and put his head and shoulders forward in order to load and unload luggage on the bottom shelf. At this time, workability is improved if the second shelf from the bottom does not get in the way. On the other hand, since the other shelves are at the upper level, the posture of the worker approximates the standing posture, and the degree of the head or shoulder coming out is small. Therefore, the inclination angles of the other shelves were kept small. Therefore, according to Claim 3, the workability | operativity of a luggage carrier cart can be improved.

  In the invention which concerns on Claim 4, since the front wheel was provided in the baseplate so that a movement to a horizontal direction front was possible, compared with the time of accommodation of a front wheel, the distance between the front and rear wheels can be enlarged. For this reason, the load carrying cart increases stability when carrying a load heavier than usual. Therefore, the stability of the luggage carrier can be improved.

  In the invention according to claim 5, since the tray is provided with a tray for receiving the falling object falling from the inclined shelf, the falling object can be easily collected with the tray simply by throwing the falling object into the inside of the luggage carrier cart. be able to. Thereby, compared with the case where a tray is not provided in a luggage carrier cart, falling objects can be collected in a short time. Therefore, according to claim 5, it is possible to provide a luggage carrier cart capable of realizing a reduction in work time.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The invention according to claim 1 is mainly described with reference to FIG. 9, the invention according to claim 2 is mainly described with reference to FIGS. 4 and 10, and the invention according to claim 3 is mainly described with reference to FIG. The invention according to claim 5 will be mainly described with reference to FIG. 5, and the invention according to claim 5 will be mainly described with reference to FIG. In addition, front and rear, left and right, and top and bottom indicate directions based on the worker.

  FIG. 1 is a perspective view of a load carrying cart according to the present invention. A load carrying cart 10 includes front casters 11 and 11 as two front wheels and rear casters 12 and 12 (two right wheels) as right wheels. (The rear caster is not shown), and is a human-powered cart having a four-stage shelf including an uppermost shelf 13, a second shelf 14, a third shelf 15, and a lowermost shelf 16 for loading luggage. .

2 is a cross-sectional view taken along line 2-2 of FIG. 1, and the luggage carrier 10 houses a slide leg 17 (details will be described later) having a front caster 11 on the lower surface of the front end and a rear end portion of the slide leg 17. In addition, a base plate 18 provided with a rear caster 12 at the rear end, a front post 19 attached in a standing state on the upper surface of the front end of the base plate 18, and a rear post attached in a state standing on the upper surface of the rear end of the base plate 18 21, a column connecting member 22 that connects the upper end of the front column 19 and the upper end of the rear column 21, a support plate 23 that is attached to the entire rear end of the column connecting member 22 and the rear column 21, and this support Four sets of hinges 24 that rotatably connect the plate 23 and the rear ends of the uppermost shelf 13, the second shelf 14, the third shelf 15, and the lowermost shelf 16. Details will be described later), the uppermost shelf 13 and the second shelf 14 and the third shelf. For example, four stoppers 25 having a rectangular cross section and the other end of the uppermost shelf 13 are attached to the front column 19 to receive the other end of each of the upper shelf 15 and the lowermost shelf 16. Folding hinges 28 attached to the rear end of the folding shelf 26 obtained by cutting in the direction and the top end of the uppermost shelf 27 after cutting, and the back attached to the rear outer surface of the rear column 21 and the rear end surface of the base plate 18. It consists of a plate 29 and a tray 32 (details will be described later) that is detachably stored in a tray receiver 31 provided at the bottom of the rear end of the base plate 18.
Reference numeral 33 denotes a tray handle.

  In addition, although the shape of stopper 25 ... was demonstrated with the square cross section, since an inverted triangular cross section, a semicircular cross section, and a hexagonal cross section can be employ | adopted, it does not interfere with changing to other cross-sectional shapes.

  Returning to FIG. 1, the luggage carrier 10 includes a base plate 18, a front post 19, a rear post 21, a post connection member 22, and a support plate 23 as a set, the uppermost shelf 13, the second shelf 14, Provided respectively on the left and right of the third shelf 15 and the lowermost shelf 16 (the right base plate 18 is not shown). In addition, side plates 34 and 34 are provided on the outer surfaces of the left base plate 18, the front post 19, the rear post 21 and the post connection member 22, and the right base plate 18, front post 19, rear post 21 and post connection member 22, respectively. Install.

  FIG. 3 is an enlarged view of a part 3 in FIG. 2. In FIG. 3A, the hinge 24 is a circular cross-section stationary pin attached to, for example, the rear end side surface of the uppermost shelf 13 in the horizontal posture shown by the two-dot chain line. 35 and an uppermost stage provided on the cross-sectional longitudinal center line 36 of the uppermost shelf 13 passing through the center of the stationary pin 35 and separated from the center of the stationary pin 35 to the other end of the uppermost shelf 13 by an arbitrary distance L1. A circular cross-sectional moving pin 37 attached to the side surface of the rear end of the shelf 13 and the support plate 23 so as to exceed the outer diameter of the stationary pin 35 from the center of the stationary pin 35 to an arbitrary distance L2 at an arbitrary inclination angle θ. The stationary pin guide 38 formed in a straight elongated hole and the moving pin 37 with the center of the stationary pin 35 as the rotation center and L1 as the rotation radius exceed the outer diameter of the moving pin 37 to an arbitrary inclination angle θ. Arc-shaped length formed on the support plate 23 A straight elongated hole formed in the support plate 23 so as to extend from the arc-shaped elongated hole by an arbitrary distance L3 along the center line 39 of the stationary pin guide 38 and to exceed the outer diameter of the moving pin 37. It consists of a guide 41 for a moving pin that is formed into a combined shape.

  The structure of the hinge 24 is a combination of a pin attached to the shelf and a long hole formed in the support plate, but the portion where the pin and the long hole are provided may be reversed. That is, for example, the structure may be changed to a structure in which a long hole is formed in the plate attached to the side surface of the shelf and the pin is attached to the support plate.

  When the operator lifts the uppermost shelf 13 upward from the horizontal position, the moving pin 37 rises along the moving pin guide 41 from the horizontal position indicated by the solid line with the center of the stationary pin 35 as the rotation center. Go. Further, when the operator lifts the uppermost shelf 13 to the inclination angle θ, the moving pin 37 comes into contact with the upper end 42 of the moving pin guide 41 and stops. Since the worker releases the uppermost shelf 13 at the position of the inclination angle θ, gravity acts on the uppermost shelf 13, so that the stationary pin 35 and the moving pin 37 are the stationary pin guide 38 and the moving pin guide. It descends to the lower right of the figure along 41.

  In (b), when the stationary pin 35 and the moving pin 37 come into contact with the lower end 43 of the stationary pin guide 38 and the lower end 44 of the moving pin guide 41, the uppermost shelf 13 maintains an inclined posture. The inclination angle θ of the uppermost shelf 13 at this time is set to 40 °, for example. The inclination angle θ of the other shelf used in this embodiment is, for example, 45 ° for the second shelf (reference numeral 14 in FIG. 2), 60 ° for the third shelf (reference numeral 15 in FIG. 2), and the lowest shelf. The following description will be made assuming that the shelf (reference numeral 16 in FIG. 2) is 45 °.

  Note that the inclination angles θ of the uppermost shelf 13, the second shelf 14, the third shelf 15, and the lowermost shelf 16 are not limited to the above-described numerical values, depending on the application. It is permissible to change the inclination angle θ to an arbitrary angle.

  FIG. 4 is a sectional view showing the inclination posture of the shelf used in the present invention. The uppermost shelf 13, the second shelf 14, the third shelf 15 and the lowermost shelf 16 are inclined at the aforementioned inclination angle θ. Each incline posture is maintained. At this time, the folding shelf 26 of the uppermost shelf 13 can be folded by the folding hinge 28.

Therefore, the folding shelf 26 of the uppermost shelf 13 is configured to be folded by the folding hinge 28.
Therefore, the height of the luggage carrier 10 can be reduced as compared with the case where the other end of the uppermost shelf 13 is not folded. Therefore, it is possible to reduce the size of the luggage carrier cart 10.

FIG. 5 is an explanatory diagram of the operation of the front wheels used in the present invention.
In (a), the slide leg 17 includes a hollow leg member 45 that is movably housed inside the base plate 18, a projecting member 46 having a square cross section that is attached to the upper surface of the leg member 45, and the projecting member 46. In order to restrict the movement, a long hole 47 for movement restriction formed at the tip of the base plate 18 and a cap 49 fitted into the hole 48 at the tip of the leg member 45 are configured.
51 and 51 are fixing screws of the front caster 11.

  The slide structure of the slide leg 17 is composed of the base plate 18 (stationary side) and the leg member 45 (movement side), but the slide structure is composed of, for example, a shaft member (stationary side) and a hollow member (movement side). It is safe to change to

At (b), the front caster 11 is moved forward as much as possible. At this time, the projection member 46 attached to the upper surface of the leg member 45 hits the front end 52 of the movement restricting long hole 47 provided in the base plate 18, so that the movement of the front caster 11 is stopped.
Therefore, the front caster 11 is provided on the base plate 18 so as to be movable forward in the horizontal direction.

  Therefore, the distance between the front and rear casters can be increased as compared with the case of storing the front caster 11 shown in FIG. As a result, the load carrying cart 10 is more stable when carrying a load heavier than usual. That is, the stability of the luggage carrier 10 can be improved.

  FIG. 6 is a comparison diagram when the shelf used in the present invention is used and stored. In FIG. 6A, the depth dimension of the luggage carrier 10 when the shelf is used is D3, and the shelf is stored in FIG. Let D4 be the depth dimension of the luggage carrier 10 at the time. Since the load carrying cart 10 at the time of storing the shelf can store all the slide legs 17 in the base plate 18, the depth dimension can be made smaller by (D3-D4) than when the shelf is used. Further, by folding the folding shelf 26 when the uppermost shelf 13, the second shelf 14, the third shelf 15 and the lowermost shelf 16 are in the inclined posture, the luggage carrier cart 10 is height-enhanced. Can be reduced in height. Therefore, by adopting the slide leg 17 and the folding shelf 26, it is possible to save the space of the luggage carrier cart 10.

7 is a cross-sectional view taken along the line 7-7 in FIG. 4, and extends from the inside of the left and right base plates 18 and 18 toward the center of the luggage carrier 10 and on the tray receiver 31 formed in a convex shape downward. The tray 32 is placed, and above the tray 32, inclined plates 53 and 53 each extending obliquely from the inside of the left and right side plates 34 and 34 toward the center of the luggage carrier 10 are provided. By throwing the hose caps 54 and 54 as fallen objects from the upper part of the luggage carrier cart 10, the hose caps 54 and 54 slide down the inclined plates 53 and 53 as indicated by arrows and fall on the tray 32. Thus, the hose caps 54 and 54 can be collected.
55... Are reinforcing members for the tray receiver 31.

  Therefore, the left and right base plates 18 and 18 are provided with an inclined uppermost shelf (reference numeral 13 in FIG. 4), a second shelf (reference numeral 14 in FIG. 4), a third shelf (reference numeral 15 in FIG. 4), and A tray 32 that receives the hose caps 54 and 54 that fall from the lowest shelf (reference numeral 16 in FIG. 4) is provided via the tray receiver 31.

  Therefore, the hose caps 54, 54 can be easily collected by the tray 32 simply by throwing the hose caps 54, 54. Thereby, compared with the case where the tray 32 is not provided in the luggage carrier 10, the hose caps 54 and 54 can be collected in a short time. Therefore, it is possible to provide the luggage carrier 10 that can reduce the working time.

FIG. 8 is a diagram showing a modified embodiment of FIG. 2, and the same components as those in FIG.
In (a), the luggage carrier 10B is attached to the front support 19 via a support member 56 and is provided with a limit switch 57 as a sensor provided so as to be in contact with the lower surface of the lowermost shelf 16, and extended from the limit switch 57. A controller 59 connected to the lower surface of the base plate 18 through the harness 58, an electromagnetic valve 62 connected from the controller 59 via the cable 61 and attached to the lower surface of the base plate 18, and a tube from the electromagnetic valve 62 to the tube. The air cylinder 64 is an actuator provided inside the base plate 18 and is connected via the base plate 18, and a slide leg 66 attached to the tip of the cylinder rod 65 of the air cylinder 64.

Note that the limit switch 57 can be replaced with a proximity switch, and therefore it can be changed to another type of sensor.
The air cylinder 64 may be a hydraulic cylinder and is not limited to a pneumatic type.

  At (b), the lowermost shelf 16 is lifted as indicated by the arrow (1), and the limit switch 57 is turned off by releasing the detection unit 67 of the limit switch 57 from the lowermost shelf 16. This off signal is transmitted to the controller 59, and the controller 59 opens the atmosphere release port of the electromagnetic valve 62, so that the air accumulated in the air cylinder 64 is released to the atmosphere. Thereby, the slide leg 66 attached to the tip of the cylinder rod 65 of the air cylinder 64 is accommodated as shown by the arrow (2).

  Therefore, the luggage carrier 10B can house the slide legs 66 at the same time as placing the lowermost shelf 16 in an inclined posture. Therefore, the storing operation can be completed in a short time.

FIG. 9 is a cross-sectional view of another luggage carrier cart according to the present invention, and the same components as those in FIG.
The load carrying cart 70 has an uppermost shelf 711, a second shelf when the uppermost shelf 71, the second shelf 14, the third shelf 15, and the lower shelf 16 are in a horizontal posture. The other end of each of the fourteenth and third-tier shelves 15 and the lowermost shelf 16 is projected from the base plate 72 by a projecting dimension L4.
A front caster 73 is attached to the bottom surface of the tip of the base plate 72.

  Therefore, compared to the case where the base plate 72 is extended to the other ends of the uppermost shelf 71, the second shelf 14, the third shelf 15 and the lowermost shelf 16, the depth dimension of the base plate by the protruding dimension L4. Can be reduced. In other words, the area of the carriage carrier 70 can be reduced by the projected area obtained by multiplying the projected dimension L4 by the width dimension of the platform plate. Accordingly, it is possible to provide the luggage carrier cart 70 that can reduce the area of the cart storage area.

FIG. 10 is a cross-sectional view of still another load carrying cart according to the present invention, and the same components as those in FIG.
The luggage carrier 80 is configured such that the other ends of the uppermost shelf 13, the second shelf 81, the third shelf 82, and the lowermost shelf 83 are all folded as indicated by arrows. Features.

That is, the luggage carrier 80 has the folding shelf 26 attached to the other end of the uppermost shelf 13 via the folding hinge 28, and the second shelf 81, the third shelf 82, and the lowermost shelf 83. A folding shelf 85 is attached to each other end via a folding hinge 84.
86 is a base plate, and 87 is a front caster.

  The depth dimension when the other ends of the uppermost shelf 13, the second shelf 81, the third shelf 82 and the lowermost shelf 83 are not folded is L5, and the depth dimension when folded is L6. For example, when all the other ends of the uppermost shelf 13, the second shelf 81, the third shelf 82, and the lowermost shelf 83 are folded, the depth dimension can be reduced by (L5-L6). . Therefore, the depth dimension of the luggage carrier cart 80 when the shelf is in the horizontal posture can be reduced. Therefore, it is possible to reduce the size of the luggage carrier cart 80.

  In the above description, it has been described that the luggage carrier cart of the present invention can realize downsizing, improvement in stability, space saving, shortening of work time, and reduction of the carriage storage area. However, when working with a luggage carrier, it is necessary to consider the workability of loading and unloading luggage from the shelf. Next, an embodiment in consideration of workability for taking in and out the luggage from the shelf will be described.

FIG. 11 is a cross-sectional view of still another load carrying cart according to the present invention, and the same components as those in FIG.
The luggage carrier cart 90 has an inclination angle of the third shelf 91 (second shelf from the bottom) of the upper shelf 13, the second shelf 14, and the lower shelf 16 as other shelves. It is characterized by being larger than the inclination angle.
92 is a base plate and 93 is a front caster.

The inclination angle of the shelf shown in the figure is 45 ° for the uppermost shelf 13, the second shelf 14 and the lowermost shelf 16, for example, 60 ° for the third shelf 91, for example.
Note that the inclination angle of the shelf is not limited to these values, and may be changed according to the application.

  When loading / unloading luggage with the luggage carrier cart 90, the worker works in a standing posture on the uppermost shelf 13, the second shelf 14, and the third shelf 91, but the lowermost shelf In 16, the work is performed in a bent posture.

  In such an operation, when loading / unloading the luggage into / from the lowermost shelf 16 in the horizontal posture indicated by the two-dot chain line, the third shelf 91 in the inclined posture indicated by the two-dot chain line (two steps from the bottom) If the inclination angle of the eye shelf) is small, the working space between the third shelf 91 and the lowermost shelf 16 is narrowed. This makes it difficult to take in and out the luggage.

  Therefore, the luggage carrier cart 90 has the inclination angle of the third shelf 91 (the second shelf from the bottom) in accordance with the inclination of the uppermost shelf 13, the second shelf 14, and the lowermost shelf as other shelves. Since the inclination angle is larger than 16, the loading / unloading operation can be easily performed. Therefore, the workability of the luggage carrier cart 90 can be improved.

Although the number of shelves is four in the embodiment, it may be changed to a number exceeding four according to the height of the carriage.
In addition, although the tray structure has been described as a box shape in the embodiment, a net-like or punching metal-like structure that does not allow a fallen object to pass through can be adopted, so other types may be applied. .

  The luggage carrier of the present invention is suitable for conveying small parts and equipment.

It is a perspective view of a luggage carrier cart according to the present invention. FIG. 2 is a sectional view taken along line 2-2 of FIG. FIG. 3 is a three-part enlarged view of FIG. 2. It is sectional drawing which shows the inclination attitude | position of the shelf used for this invention. It is action | operation explanatory drawing of the front wheel used for this invention. It is a comparison figure at the time of use of the shelf used for this invention, and storage. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 4. FIG. 3 is a modified embodiment diagram of FIG. 2. It is sectional drawing of another luggage carrier cart which concerns on this invention. It is sectional drawing of another load-carrying trolley | bogie which concerns on this invention. It is sectional drawing of another load-carrying trolley which concerns on this invention. It is a figure explaining the basic composition of the conventional technology.

Explanation of symbols

  10, 10B, 70, 80, 90 ... luggage carrier, 11, 73, 87, 93 ... front caster (front wheel), 12 ... rear caster (rear wheel), 13, 71 ... top shelf, 14, 81 ... 2nd shelf, 15, 82, 91 ... 3rd shelf, 16, 83 ... Bottom shelf, 17, 66 ... Slide legs, 18, 72, 86, 92 ... Base plate, 19 ... Front strut , 21 ... rear struts, 24 ... hinges, 25 ... stoppers, 26, 85 ... folding shelves, 32 ... trays, 54 ... hose caps (falling objects).

Claims (5)

By placing the front strut and the rear strut on the base plate with the front wheels and the rear wheels, fastening one end of the plurality of shelves to the rear strut with a hinge, and providing a stopper for receiving the other end of the plurality of shelves on the front strut In a luggage carrier that can be placed in a horizontal posture or an inclined posture with a plurality of shelves arranged apart from each other up and down,
When the shelf is in a horizontal posture, the other end of the shelf protrudes from the base plate.   2. The luggage carrier cart according to claim 1, wherein the other end of the shelf is configured to be folded all or one of the uppermost stages.   The luggage carrier according to claim 1 or 2, wherein the inclination angle of the second shelf from the bottom is larger than the inclination angle of the other shelves.   4. The luggage carrier cart according to claim 1, wherein the front wheel is provided on a base plate so as to be movable forward in the horizontal direction.   The luggage carrier cart according to any one of claims 1 to 4, wherein the base plate is provided with a tray for receiving falling objects falling from the inclined shelf.

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