JP2019083973A - Carrier cart - Google Patents

Abstract

To provide a carrier cart that can deal with containers of various widths and that can particularly deal with trays having small size differences of about 3-6 mm.SOLUTION: The carrier cart is equipped with a flexible frame 2a that makes a distance freely adjustable between a first side frame and a second side frame which are facing each other. The flexible frame 2a includes an intermediate connection frame 21a and a flexible connection frame 23a that freely flexibly engages with the intermediate connection frame. On one face of the intermediate connection frame, a first fastening hole group 25 is formed and, on the corresponding face of the flexible connection frame, a second fastening hole group 26 is formed. The first fastening hole group has longitudinally two lines, with the hole group of the same line having an equal pitch (p), and with the two lines of the hole group alternating with a size difference of a half pitch (p/2). The second fastening hole group has similarly two lines, with the pitch (p) of the holes of one line equal to the pitch (p) of the other line, and with the pitch (p) being ((p)×n+(p/2)) (n is an integer).SELECTED DRAWING: Figure 5

Description

  The present invention relates to a transport cart for transporting containers such as trays used in, for example, hospitals and the like.

  A transport cart for transporting containers, such as trays, is used in hospitals for serving food for patients and serving undergarments to lower finished dishes. That is, it is used to place dishes containing cooked food on rectangular trays, store the trays on a transport cart, transport them from the kitchen to the hospital room, and when the patient's meal is over, It is placed on a tray, stored in a transport cart, and used to transport the patient's room to the washroom. Such layouts and lower trays are required to be able to store many trays at one time and to be easily put in and out from the viewpoint of hygiene problems and efficiency.

  In JP-A-2017-80330, a container transport vehicle for transporting a container, which is long and has a horizontally extending lower frame, is connected to both end sides of the lower frame, and extends in the vertical direction. A pair of extending column frames and a column, extending horizontally below the column frame so as to be orthogonal to the lower frame, and connected to the lower end of the column frame at its central portion A plurality of pillar frames, a wheel mounted below the pillar frames, and a plurality of pillar frames parallel to the pillar frames at predetermined intervals in the vertical direction, between the pillar frames A plurality of pairs of rails for supporting the container inserted horizontally towards the lower frame, the lower frame comprising a pair of lower frame ends connected to the support frame; Frame ends to each other, the pair of container transport vehicles has a lower frame central portion, the adjustably connecting distance between strut frame is disclosed.

  Further, in FIG. 3 of JP-A-2017-80330, the pair of lower frame ends connected to the support frame 7 and the lower frame ends are connected so that the distance between the pair of support frames can be adjusted. A lower frame 5 having a lower frame center 24 is disclosed. According to this container conveyance vehicle, it can respond to the container of various widths.

Unexamined-Japanese-Patent No. 2017-80330 (Claim 1, FIG. 3)

  However, the difference in the width dimension of the tray is a small difference in dimension such as 5 mm. In the case of the container carrier according to JP-A-2017-80330, the pitch of the holes formed in the lower frame central portion 24 is required to be 10 mm from the viewpoint of maintaining the strength. That is, the diameter of the holes is about 7 mm, and in this case, the distance between adjacent holes is 3 mm. In view of the strength of the lower frame central portion 24, it is not possible to form holes at a smaller pitch than this. In this case, there is a problem that it can not cope with trays of 5 mm in dimensional difference.

  Therefore, an object of the present invention is to provide a transport cart which can cope with containers of various widths, and in particular, can cope with trays with small dimensional difference of about 3 to 6 mm.

In such a situation, in the meshing holes formed in the telescopic connection frame or the intermediate connection frame, one first fastening hole group is in two rows in the longitudinal direction, and the hole groups in the same row are at an equal pitch (p ₁ ), and one row and the hole group, the hole group in the other row is staggered by dimensional difference half a pitch (p _1/2), second fastening hole group is a corresponding two rows, holes in one row group of the pitch _{(p 2)} and the other row of hole group pitch _{(p 2)} is the same, and the pitch _{(p 2)} is be formed by _{((p 1) × n +} (p 1/2)) For example, it has been found that bolting can be performed at a half pitch of the conventional hole distance, and the present invention has been completed.

That is, according to the present invention, there are provided a first side frame, a second side frame facing the first side frame, and a telescopic frame capable of adjusting the distance between the first side frame and the second side frame. A transport cart comprising
The telescopic frame includes: a first telescopic connection frame having one end fixed to the first side frame; and one end fixed to the second side frame and telescopically fitted to the first telescopic connection frame 2 telescopic connection frame, and
A first expansion hole group is formed on the upper surface or the lower surface of the first expansion and contraction connection frame, and a second expansion and contraction connection frame corresponding to the upper surface or the lower surface of the first expansion and contraction connection frame in which the first connection hole group is formed. A second set of fastening holes are formed in the
The first fastening holes are in two rows in the longitudinal direction, and the holes in the same row are at equal pitch (p ₁ ), and the holes in one row and the holes in the other row are half pitch (p _1/2) are staggered in size difference,
Second fastening hole group is a 2 column corresponding to the two rows of the first fastening hole group, the pitch of the hole groups in one row (p ₂₎ and the other row of hole group pitch (p ₂₎ is are the same, and the pitch _{(p 2)} provides a transport cart, characterized in that the _{((p 1) × n +} (p 1/2)) (n is any integer from 1 to 10) It is a thing.

Further, according to the present invention, the first side frame includes a horizontally extending first leg frame, and a first shelf frame erected from the first leg frame.
The second side frame has a horizontally extending second leg frame that is paired with the first leg frame, and a second shelf frame that stands up from the second leg frame,
The telescopic frame provides the transport cart characterized in that one end is connected to the first leg frame and the other end is connected to the second leg frame.

Further, according to the present invention, the second telescopic connection frame is an intermediate connection frame that is telescopically fitted to the first telescopic connection frame, one end thereof is fixed to the second side frame, and the middle connection frame And a third telescopic connection frame fitted telescopically,
The first telescopic connection frame in which a first fastening hole group or a second fastening hole group is formed on the upper surface or the lower surface of the first telescopic connection frame, and the first fastening hole group or the second fastening hole group is formed According to another aspect of the present invention, there is provided the transport cart, wherein a second group of fastening holes or a first group of fastening holes are formed in the surface of the intermediate connection frame corresponding to the upper surface or the lower surface.

Further, according to the present invention, the second telescopic connection frame is an intermediate connection frame that is telescopically fitted to the first telescopic connection frame, one end thereof is fixed to the second side frame, and the middle connection frame And a third telescopic connection frame fitted telescopically,
The third telescopic connection frame in which a first fastening hole group or a second fastening hole group is formed on the upper surface or the lower surface of the third telescopic connection frame, and the first fastening hole group or the second fastening hole group is formed. According to another aspect of the present invention, there is provided the transport cart, wherein a second group of fastening holes or a first group of fastening holes are formed in the surface of the intermediate connection frame corresponding to the upper surface or the lower surface.

  Further, the present invention has a third shelf frame standing from the center of the intermediate connection frame, and an upper surface or a lower surface of the intermediate connection frame closer to the first shelf frame from the third shelf frame, In the surface of the first telescopic connection frame corresponding to the upper surface or the lower surface of the intermediate connection frame in which the first connection holes or the second connection holes are formed and in which the first connection holes or the second connection holes are formed The present invention provides the above-mentioned transfer cart characterized in that a second fastening hole group or a first fastening hole group is formed.

  Further, the present invention has a third shelf frame standing from the center of the intermediate connection frame, and an upper surface or a lower surface of the intermediate connection frame closer to the second shelf frame from the third shelf frame, In the surface of the third telescopic connection frame corresponding to the upper surface or the lower surface of the intermediate connection frame in which the first connection holes or the second connection holes are formed and in which the first connection holes or the second connection holes are formed The present invention provides the above-mentioned transfer cart characterized in that a second fastening hole group or a first fastening hole group is formed.

  Further, according to the present invention, the first rail is provided on the surface of the first shelf frame on the side of the second shelf frame, and the second rail is provided on the surface of the second shelf frame on the side of the first shelf frame. A plurality of transport carts are provided, each being formed in the vertical direction, and containers are placed between the opposing first and second rails.

  Further, according to the present invention, the first rail is provided on the surface of the first shelf frame on the side of the third shelf frame, and the third rail is provided on the surface of the third shelf frame on the side of the first shelf frame. However, the fourth rail is on the surface of the third shelf frame on the side of the second shelf frame, and the second rail is on the surface of the second shelf frame on the side of the third shelf frame. The transport cart is provided with a plurality of containers formed in the vertical direction between the opposing first and third rails and between the opposing second and third rails. It is a thing.

  The present invention also provides the transport cart, wherein the number of holes in one row is 10 to 20 in the first fastening hole group.

  Further, the present invention provides the above-mentioned transfer cart characterized in that the second fastening hole group has two holes in a row.

Further, the present invention is semi pitch (p _1/2) is to provide the transport cart, which is a 3 to 6 mm.

  The present invention also provides the above-mentioned transfer cart, wherein the n is any one of 2 to 5.

  According to the present invention, since the first fastening hole group and the second fastening hole group, which are meshing holes formed in the telescopic connection frame and the intermediate connection frame, are the specific holes, the pitch of the conventional hole spacing is half. You can adjust the width. For this reason, it is possible to store trays with a dimensional difference of, for example, about 3 to 6 mm, which could not be handled conventionally.

It is a perspective view of a conveyance cart in a 1st embodiment of the present invention. It is a disassembled perspective view of the conveyance cart of FIG. It is an expansion perspective view of the expansion-contraction frame of the conveyance cart of FIG. It is a disassembled expansion perspective view of the expansion-contraction frame of the conveyance cart of FIG. It is a partial top view explaining the elastic frame of the present invention. It is another partial top view explaining the expansion-contraction frame of this invention. FIG. 6 is a partial view from above of the telescopic frame at the minimum length position of the transport cart of FIG. 1; FIG. 8 is a bottom view of the transport cart at the minimum length position of FIG. 7; FIG. 6 is a partial view from above of the telescopic frame at an intermediate length position of the transport cart of FIG. 1; 10 is a bottom view of the transport cart at the intermediate length position of FIG. 9; It is the fragmentary view seen from the upper direction of the expansion-contraction frame in the maximum length position of the conveyance cart of FIG. It is a bottom view of the conveyance cart in the maximum length position of FIG. It is a perspective view of the conveyance cart in a 2nd embodiment of the present invention. FIG. 14 is another perspective view of the transport cart of FIG. 13; It is a perspective view which shows the modification of the conveyance cart of FIG.

  In the present invention, the first side frame includes a horizontally extending first leg frame and a first shelf frame erecting from the first leg frame, and the second side frame includes the first leg frame and the paired frame A single row multistage storage cart having a horizontally extending second leg frame and a second shelf frame standing from the second leg frame can be mentioned. Wheels are attached below both ends of the first leg frame and the second leg frame to enable manual movement. The single-row multistage storage cart has an expandable frame connecting the first leg frame and the second leg frame. In this single-row multistage storage transport cart, the container is stored between a first rail formed on the inner side surface of the first side frame and a second rail formed on the inner side surface of the second side frame . In the single-row multi-store cart, the distance between the first side frame and the second side frame can be adjusted by adjusting the fitting length of the first telescopic connection frame and the second telescopic connection frame. .

  Further, in the present invention, in addition to the single-row multistage storage transport cart, a 2-row multistage storage cart having a third side frame between the first side frame and the second side frame may be mentioned. The telescopic frame of the 2-row multistage storage cart has one end fixed to the first side frame, and the first telescopic connection frame telescopically fitted to the intermediate connection frame, and one end fixed to the second side frame And a third telescopic connection frame which is telescopically fitted with the middle connection frame, and a middle connection frame which is fitted with the first telescopic connection frame and the second telescopic connection frame. In addition, the third side frame is attached on the intermediate connection frame. In this two-row multistage storage transport cart, the containers are a first rail formed on the inner side surface of the first side frame, and a third rail formed on the side surface on the first side frame side of the third side frame. It is accommodated in two rows between the 4th rail formed in the side by the side of the 2nd side frame of between and the 3rd side frame, and the 2nd rail formed in the side of the inside of the 2nd side frame respectively. And in the 2-row multistage storage cart, the distance between the first side frame and the third side frame can be adjusted, and the distance between the second side frame and the third side frame can be adjusted.

In the present invention, the first fastening holes are in two rows in the longitudinal direction, and the holes in the same row are at equal pitch (p ₁ ), and the holes in one row and the holes in the other row are half. it is staggered in dimensional difference of the pitch _{(p 1/2).} The number of holes in one row is 10 to 20, preferably 13 to 17. This allows fine adjustments to be made from small width trays to large width trays. As the pitch of the holes and the hole in one of the columns _{(p 1),} about 6~12mm it is preferred. As a result, the half pitch is 3 to 6 mm, and this half pitch length can be finely adjusted. Moreover, as a distance (space | interval) between the rows in 2 rows, about 1/3 to 1/2 of the width | variety of an expansion-contraction frame is preferable. With such a distance, stable fixing can be performed when tightening the first expansion and contraction connection frame and the second expansion and contraction connection frame or the first expansion and contraction connection frame or the second expansion and contraction connection frame and the intermediate connection frame with two bolts. . The hole is a circular through hole, and the diameter of the hole is preferably 4 to 6 mm. With this hole diameter, the shaft of the bolt used can be passed.

In the present invention, the second fastening hole group in two rows corresponding to two rows of the first fastening hole group, the pitch of the hole groups in one row (p ₂₎ and the other row of hole group pitch (p ₂ ) is the same, and the pitch _{(p 2)} is, _{((p 1)} is a _{× n + (p 1/2} )) (n is any integer from 1 to 10). The hole diameter of the holes constituting the second fastening hole group may be the same as the hole diameter constituting the first fastening hole group. Thus, the bolt shafts can be inserted into the matched holes in the holes of the first fastening hole group and the holes of the second fastening hole group. The number of holes in one row of the second fastening hole group is preferably an even number of 2, 4 and 6, particularly preferably two. In the case where the number of holes in one row of the second fastening hole group is two, the number of holes for receiving bolts is one, and in the case of four, it is two. The preferred number of n is an integer of 2 to 5. If the number of n is too large, the width dimension of the adjustable tray is limited and the use range is narrowed.

  In the present invention, a first fastening hole group or a second fastening hole group is formed on the upper surface or the lower surface of the first telescopic connection frame which is a square bar or a hollow square bar. In the surface of the second telescopic connection frame corresponding to the upper surface or the lower surface of the first telescopic connection frame on which the first fastening hole group or the second fastening hole group is formed, the second fastening hole group or the first fastening hole group Is formed. That is, the first telescopic connection frame and the second telescopic connection frame are fixed by fixing one surface of the first telescopic connection frame and the surface of the second telescopic connection frame in contact with this surface with a bolt.

  Next, the transport cart according to the embodiment of the present invention will be described with reference to FIGS. The transport cart 10 includes a first side frame 1A, a second side frame 1B facing the first side frame 1A, and an expandable frame 2a connecting the first side frame 1A and the second side frame 1B. The first side frame 1A has a first leg frame 1a which is a plate-like or square member extending in the horizontal direction, and a first shelf frame 3a standing from the first leg frame 1a, and a second side frame 1B The first leg frame 1a has a second leg frame 1b which is a plate-like or square member extending in the horizontal direction, which is a pair of frames, and a second shelf frame 3b standing upright from the second leg frame 1b.

  A concave first connection portion 31a is formed at the center of the first leg frame 1a in the longitudinal direction, into which the center post of the first shelf frame 3a fits, and at the center of the second leg frame 1b in the longitudinal direction A concave second connection portion 31b is formed in which the center post of the two shelf frame 3b is fitted. The first shelf frame 3a and the second shelf frame 3b have a pair of the same shape, and the first shelf frame 3a (the left shelf frame in FIG. 4) will be described. The description is omitted. The first shelf frame 3a has a square pillar-shaped support 311a, and a pair of substantially U-shaped front and back frames 312a connecting the upper and lower portions of the support 311a, and the support 311a and the frame 312a A large number of rails 33a (first rails) are formed at predetermined pitches in the vertical direction between them. Moreover, between the support | pillar 311b of the 2nd shelf frame 3b and the frame body 312b, many rails 33d (2nd rail) are formed by predetermined | prescribed pitch in the up-down direction. The edge of the tray which is a container is mounted on the rail 33a, and the edge of the tray which is another container is mounted on the rail 33d.

  A concave third connection portion 31c in which a central support column 311c of the third shelf frame 3c is fitted is formed at the central portion (intermediate connection frame 21a) of the telescopic frame 2a. The central third side frame 1C has a square pillar-shaped support 311c, and a pair of substantially U-shaped front and rear frames 312c connecting the upper and lower portions of the support 311c, and the support 311c and the frame A plurality of rails 33b (third rails) are formed at a predetermined pitch in the vertical direction on the first shelf frame 3a side between the 312c and the second shelf frame 3b side is predetermined in the vertical direction A large number of rails 33c (fourth rails) are formed at a pitch of. A tray, which is a container, is placed between the first rail 33a and the third rail 33b, and a tray, which is another container, is placed between the fourth rail 33c and the second rail 33d. At the upper ends of the columns 311a to 311c of the first shelf frame 3a, the third shelf frame 3c, and the second shelf frame 3b, a fixing portion to which the upper expandable frame 2b is connected is formed.

  In the transport cart 10, the telescopic frame 2a is formed between the first connection portion 31a and the second connection portion 31b, and the supports 311a of the first shelf frame 3a, the third shelf frame 3c, and the second shelf frame 3b. The upper telescopic frame 2b is connected to the upper end of the 311c. In the telescopic frame 2a, the first fastening hole group 25 and the second fastening hole group 26 are formed on the lower surface, and in the upper telescopic frame 2b, the first fastening hole group 25 and the second fastening hole group 26 are formed on the upper surface Except for the same, the lower telescopic frame 2a is described, and the description of the telescopic frame 2b is omitted.

  The telescopic frame 2a has one end connected to the first leg frame 1a and the other end connected to the first telescopic connection frame 22a telescopically fitted with the intermediate connection frame 21a, and one end connected to the second leg frame 1b, The third telescopic connection frame 23a has the other end telescopically fitted with the intermediate connection frame 21a, and the first telescopic connection frame 22a is telescopically fitted with the first telescopic connection frame 22a at one end, and the third telescopic connection frame at the other end And an intermediate connecting frame 21a which is telescopically fitted with the second connecting member 23a (see FIG. 4). In this example, the first telescopic connection frame 22a and the third telescopic connection frame 23a have a plate shape or a rectangular shape, and the intermediate connection frame 21a is formed by fitting the first telescopic connection frame 22a and the third telescopic connection frame 23a. It is in the form of a hollow plate or cube which can be withdrawn. The lengths of the first telescopic connection frame 22a and the third telescopic connection frame 23a are set so as not to collide in the middle connection frame 21a even when the telescopic frame 2a has a minimum length.

  In the expandable frame 2a, a first fastening hole group 25a is formed on the upper surface or the lower surface (in this example, the lower surface) of the intermediate connection frame 21a closer to the first shelf frame 3a from the third shelf frame 3c. A second fastening hole group 26a is formed on the surface of the first telescopic connection frame 22a corresponding to the surface on which the hole group 25a is formed. In addition, a first fastening hole group 25a is formed on the upper surface or the lower surface (in the present example, the lower surface) of the intermediate connection frame 21a closer to the second shelf frame 3b from the third shelf frame 3c. A second fastening hole group 26a is formed on the surface of the third telescopic connection frame 23a corresponding to the surface on which the second fastening hole 26a is formed. That is, the transport cart 10 can adjust the distance between the first shelf frame 3a and the third shelf frame 3c and the distance between the second shelf frame 3b and the third shelf frame 3c.

5 and 6 show that the first fastening hole group 25 is formed in the intermediate connection frame 21a closer to the second shelf frame 3b from the third shelf frame 3c, and the first fastening hole group 25 and the first fastening hole group 25 are not illustrated. It is a figure explaining the relation of 2 fastening holes 26. 5 and 6 depict the pitch between the holes a little wider for convenience of explanation, and explain the method of adjusting the half length of the pitch between the holes. That is, in the telescopic frame 2a, the first fastening holes 25 are arranged in two rows in the longitudinal direction, and the holes in the same row are at equal pitch (p ₁ ), and the holes in one row and the holes in the other row the group is staggered by dimensional difference half a pitch (p _1/2). The number of holes in one row of the first fastening hole group 25 is seven, and the pitch (p ₁ ) is about twice the hole diameter. The second fastening holes 26 correspond to two rows of the first fastening holes 25. The number of holes in one row is two, and the pitch (p ₂ ) of the holes in one row and the other row pitch _{(p 2)} of the hole group are the same, and the pitch _{(p 2)} is a _{(2 (p 1) + (} p 1/2)). That is, in FIG. 5, among the two holes 261 and 262 on the upper side of the second fastening hole group 26, only the right side hole 262 coincides with the third hole 252 from the left on the upper side of the first fastening hole group 25. ing. Further, among the lower two holes 263 and 264 of the second fastening hole group 26, only the left side hole 263 coincides with the leftmost hole 253 on the lower side of the first fastening hole group 25. Bolts are threaded through the two matched holes for fastening. The two bolt fastening positions have distances in the width direction and the length direction, and are at oblique positions, so that the fixation of the intermediate connection frame 21a and the third telescopic connection frame 23a is stabilized.

Next, remove the bolts, third stretchable connecting frame 23a sign X direction by half a pitch in FIG. 6 (p _1/2) is moved. As a result, among the two holes 261 and 262 on the upper side of the second fastening hole group 26, only the left side hole 261 coincides with the leftmost hole 251 on the upper side of the first fastening hole group 25. Further, among the lower two holes 263 and 264 of the second fastening hole group 26, only the right side hole 264 coincides with the fourth lower hole 254 from the lower side of the first fastening hole group 25. Bolts are threaded through the two matched holes for fastening. As described above, it is possible to change the half length of the inter-hole pitch of the first fastening hole group 25 between the intermediate connection frame 21 a and the third telescopic connection frame 23 a. That is, in the second shelf frame 3b and the third shelf frame 3c, a half length of the inter-hole pitch of the first fastening hole group 25 is expanded.

Next, regarding the method of setting the distance between the shelf frames to the minimum distance (FIGS. 7 and 8), the intermediate distance (FIGS. 9 and 10), and the maximum distance (FIGS. 11 and 12) in the transport cart 10, 7 to 12 will be described. In FIGS. 7, 9 and 11, the first fastening hole group 25 and the second fastening hole group 26 show the one formed on the frame closer to the second shelf frame 3b from the third shelf frame 3c, and the numerals indicate the figures. The alphabet indicates the lower hole in the figure. When the distance between the shelf frames is the minimum distance (L1), the number of holes in one row of the first fastening hole group 25 is 15, and the number of holes in one row of the second fastening hole group 26 is two. . The pitch of the two holes of the second fastening hole group 26 is 4.5 times the pitch of the holes of the first fastening hole group 25. In FIG. 7, the intermediate connection frame 21a and the third telescopic connection frame 23a are telescopically fitted. Among the four holes of the second fastening hole group 26 formed in the third telescopic connection frame 23a, the holes of the first fastening hole group 25 formed in the intermediate connection frame 21a are matched with the reference A. Two of the circle 5 and the other two holes do not match. It is bolted at these two matched points. The same width adjustment is performed for the first fastening hole group 25 and the second fastening hole group 26 formed in the frame closer to the first shelf frame 3a from the third shelf frame 3c. Thus, as shown in FIG. 8, the minimum distance (L ₁ ) is set between the first shelf frame 3a and the third shelf frame 3c, and between the second shelf frame 3b and the third shelf frame 3c. Be done.

Next, the bolt is removed, and the first shelf frame 3a and the second shelf frame 3b are moved outward with respect to the third shelf frame 3c. In this example, the movement is performed five times the pitch of the holes of the first fastening hole group 25. Among the four holes of the second fastening hole group 26 formed in the third telescopic connection frame 23a, the holes of the first fastening hole group 25 formed in the intermediate connection frame 21a are matched with the code F Two of the circle 10, the other two holes do not match. It is bolted at these two matched points. The same width adjustment is performed for the first fastening hole group 25 and the second fastening hole group 26 formed in the frame closer to the first shelf frame 3a from the third shelf frame 3c. Thereby, as shown in FIG. 10, the first shelf frame 3a and the third shelf frame 3c, and the second shelf frame 3b and the third shelf frame 3c are respectively set to an intermediate distance (L ₂ ). Be done.

Next, the bolt is removed, and the first shelf frame 3a and the second shelf frame 3b are moved outward with respect to the third shelf frame 3c. In this example, the movement is performed five times the pitch of the holes of the first fastening hole group 25. Among the four holes of the second fastening hole group 26 formed in the third telescopic connection frame 23a, the one in agreement with the hole of the first fastening hole group 25 formed in the intermediate connection frame 21a corresponds to K The two holes are round 15, and the other two holes do not match. It is bolted at these two matched points. The same width adjustment is performed for the first fastening hole group 25 and the second fastening hole group 26 formed in the frame closer to the first shelf frame 3a from the third shelf frame 3c. Thus, as shown in FIG. 12, the maximum distance (L ₃ ) is set between the first shelf frame 3a and the third shelf frame 3c, and between the second shelf frame 3b and the third shelf frame 3c. Be done.

  According to the transport cart 10, if the pitch of the holes of the first fastening hole group 25 is, for example, 10 mm, the minimum length can be taken longer by 100 mm, and fine adjustment can be made every 5 mm of half pitch. This allows for containers of various widths.

  Next, a second embodiment of the present invention will be described with reference to FIG. 13 and FIG. In FIG. 13 and FIG. 14, the same components as in FIG. 1 to FIG. 12 will be assigned the same reference numerals, descriptions thereof will be omitted, and differences will be mainly described. That is, the difference between the transfer cart 10a of FIGS. 13 and 14 and the transfer carts of FIGS. 1 to 12 is that single-row multistage storage is performed. That is, the transport cart 10a includes a first side frame 1A, a second side frame 1D facing the first side frame 1A, and a telescopic frame capable of adjusting the distance between the first side frame 1A and the second side frame 1D. 2c, 2d, and the telescopic frames 2c, 2d have a first telescopic connection frame 22a whose one end is fixed to the first side frame 1A, and one end is fixed to the second side frame 1D, And a second telescopic connection frame 24a which is telescopically fitted with the connection frame 22a. The telescopic frame 2c has a first telescopic connection frame 22a whose one end is fixed to the first leg frame 1a of the first side frame 1A, and one end is fixed to the third leg frame 1d of the second side frame 1D. A first expansion / contraction connection frame 22a and a second expansion / contraction connection frame 24a fitted in an expandable manner, and a first fastening hole group 25 is formed on the lower surface of the second expansion / contraction connection frame 24a. A second fastening hole group 26 is formed on the surface of the first telescopic connection frame 22 a corresponding to the lower surface of the second telescopic connection frame 24 a on which the second expansion and contraction 25 is formed. Further, on the inner surface of the third shelf frame 3d that stands up from the third leg frame 1d, a large number of fifth rails are formed at a predetermined pitch in the vertical direction. A tray is stored between the first and fifth rails. The transport cart 10a is a single-row multi-stage storage, and although the storage capacity of the tray is reduced, the same effects as the transport cart 10 can be obtained.

  Next, a third embodiment of the present invention will be described with reference to FIG. In FIG. 15, the same components as in FIG. 14 will be assigned the same reference numerals and descriptions thereof will be omitted, and different points will mainly be described. That is, the transfer cart 10b of FIG. 15 differs from the transfer cart of FIG. 14 in the telescopic frame. That is, the telescopic frame 2e of the transport cart 10b can be adjusted twice as long as the telescopic frame 2c of the transport cart 10a. The telescopic frame 2e has a first telescopic connection frame 22a (not visible in FIG. 15) which has one end connected to the first leg frame 1a and the other end telescopically fitted to the intermediate connection frame 26a, and one end The third telescopic connection frame 25a is connected to the third leg frame 1d and the other end is telescopically engaged with the intermediate connection frame 26a, and the first telescopic connection frame 22a is telescopically engaged at one end, It has an intermediate connection frame 26a which is telescopically fitted with the third telescopic connection frame 25a at the end. In addition, a first fastening hole group 25 is formed in the lower surface of the middle connecting frame 26a closer to the first leg frame 1a side from the center, and the lower surface of the first telescopic connecting frame 22a corresponds to the first fastening hole group 25. The second fastening hole group 26 is formed on the surface. Furthermore, a first fastening hole group 25 is formed on the lower surface near the third leg frame 1d from the center of the intermediate connection frame 26a, and a surface corresponding to the first fastening hole group 25 on the lower surface of the third telescopic connection frame 25a. The second fastening hole group 26 is formed in the case. The transport cart 10b exhibits the same function and effect as the transport cart 10a, except that the length adjustment can be performed twice.

  The present invention is not limited to the embodiment described above, and various modifications can be made. In the transport cart 10 of FIGS. 1 to 12, installation of one of the upper and lower telescopic frames can be omitted. Moreover, even if it installs, the other expansion-contraction frame may be an expansion-contraction frame which does not have the 1st fastening hole group of this invention, and the 2nd fastening hole group. In the telescopic frame below the transport cart 10, the first fastening hole group and the second fastening hole group may be formed on the upper surface of the frame, and in the telescopic frame above the transport cart 10, the first fastening hole group The second set of fastening holes may be formed on the lower surface of the frame. Further, the shape of the leg frame is not limited to a plate shape, and may be a pipe shape.

  According to the present invention, since the first fastening hole group and the second fastening hole group formed in the expansion / contraction connection frame and the intermediate connection frame are specified holes, the width can be adjusted at a half pitch of the conventional hole distance. For this reason, it is possible to store trays with a dimensional difference of, for example, about 3 to 6 mm, which could not be handled conventionally.

1A to 1D Side frame 1a to 1c Leg frame 2a to 2e Stretchable frame 3a to 3c Shelf frame 4 Wheel 10 to 10b Transport cart 21a, 21b Intermediate connection frame 22a, 22b First stretchable connection frame 23a, 23b Third stretchable connection frame 25, 25a first fastening hole group 26, 26a second fastening hole group

Claims (12)

The first side frame,
A second side frame facing the first side frame;
What is claimed is: 1. A transport cart comprising: a telescopic frame for adjusting a distance between the first side frame and the second side frame;
The telescopic frame includes: a first telescopic connection frame having one end fixed to the first side frame; and one end fixed to the second side frame and telescopically fitted to the first telescopic connection frame 2 telescopic connection frame, and
A first expansion hole group is formed on the upper surface or the lower surface of the first expansion and contraction connection frame, and a second expansion and contraction connection frame corresponding to the upper surface or the lower surface of the first expansion and contraction connection frame in which the first connection hole group is formed. A second set of fastening holes are formed in the
The first fastening holes are in two rows in the longitudinal direction, and the holes in the same row are at equal pitch (p ₁ ), and the holes in one row and the holes in the other row are half pitch (p _1/2) are staggered in size difference,
Second fastening hole group is a 2 column corresponding to the two rows of the first fastening hole group, the pitch of the hole groups in one row (p ₂₎ and the other row of hole group pitch (p ₂₎ is are the same, and the pitch _{(p 2) is, ((p 1) × n} + (p 1/2)) conveying carts (n is any integer from 1 to 10), characterized in that a. The first side frame includes a horizontally extending first leg frame and a first shelf frame erected from the first leg frame,
The second side frame has a horizontally extending second leg frame that is paired with the first leg frame, and a second shelf frame that stands up from the second leg frame,
The transport cart according to claim 1, wherein the telescopic frame has one end connected to the first leg frame and the other end connected to the second leg frame. The second telescopic connection frame has an intermediate connection frame that is telescopically fitted to the first telescopic connection frame, and one end thereof is fixed to the second side frame and is telescopically engaged to the middle connection frame It consists of the 3rd telescopic connection frame,
The first telescopic connection frame in which a first fastening hole group or a second fastening hole group is formed on the upper surface or the lower surface of the first telescopic connection frame, and the first fastening hole group or the second fastening hole group is formed 3. The transport cart according to claim 1, wherein a second fastening hole group or a first fastening hole group is formed in a surface of the intermediate connection frame corresponding to the upper surface or the lower surface of the carrier. The second telescopic connection frame has an intermediate connection frame that is telescopically fitted to the first telescopic connection frame, and one end thereof is fixed to the second side frame and is telescopically engaged to the middle connection frame And a third telescopic connection frame,
The third telescopic connection frame in which a first fastening hole group or a second fastening hole group is formed on the upper surface or the lower surface of the third telescopic connection frame, and the first fastening hole group or the second fastening hole group is formed. 3. The transport cart according to claim 1, wherein a second fastening hole group or a first fastening hole group is formed in a surface of the intermediate connection frame corresponding to the upper surface or the lower surface of the carrier.   A third fastening frame rising from the center of the intermediate connection frame, and a first fastening hole group or a first fastening hole group or the upper surface or the lower surface of the intermediate connecting frame near the first shelf frame from the third shelf frame A second fastening hole is formed in the surface of the first telescopic connection frame corresponding to the upper surface or the lower surface of the intermediate connection frame in which the second fastening hole group is formed and the first fastening hole group or the second fastening hole group is formed. The transport cart according to claim 3, wherein a group or a first fastening hole group is formed.   A first fastening hole group or a first fastening hole group or the lower surface of the intermediate connection frame closer to the second shelf frame from the third shelf frame, having a third shelf frame rising from the center of the intermediate connection frame A second fastening hole is formed in the surface of the third telescopic connection frame corresponding to the upper surface or the lower surface of the intermediate connection frame in which the second fastening hole group is formed and the first fastening hole group or the second fastening hole group is formed. The transport cart according to claim 3, wherein a group or a first fastening hole group is formed.   The first rail is on the surface of the first shelf frame on the side of the second shelf frame, and the second rail is on the surface of the second shelf frame on the side of the first shelf frame in the vertical direction. 3. The transfer cart according to claim 2, wherein a plurality of containers are formed between the opposing first and second rails.   The first rail is on the surface of the first shelf frame on the side of the third shelf frame, and the third rail is on the surface of the third shelf frame on the side of the first shelf frame; A fourth rail is formed on the surface of the frame frame on the second shelf frame side, and a large number of second rails are formed on the surface of the second shelf frame on the third shelf frame side in the vertical direction. The transport cart according to claim 5, wherein the container is placed between the opposing first and third rails and between the opposing second and third rails.   The transfer cart according to any one of claims 1 to 8, wherein the number of holes in a row is 10 to 20 in the first fastening hole group.   The transport cart according to any one of claims 1 to 9, wherein the number of holes in one row in the second fastening hole group is two. Semi pitch _{(p 1/2),} the transport cart according to any one of claims 1 to 10, which is a 3 to 6 mm. The transfer cart according to any one of claims 1 to 11, wherein n is any one of 2 to 5.

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