JP3192836U - Heavy goods transport roller device - Google Patents

Abstract

Provided is a roller device for carrying a heavy article that can be safely and reliably operated without reversing when the roller device itself moves and travels, and that does not generate an obstructive protrusion by extracting the drive shaft itself when not in use.
A frame base 1 having a top plate 2 on which an object is placed and supported on a top surface and a center gear 12 supported on the frame base 1 at a central position so as to be rotatable integrally with the center gear 12. A driving shaft 11 that is passed through and is freely inserted, a roller gear 18 that meshes with the center gear 12, and a running roller 17 that is rotatably provided on a roller shaft that is supported before and after the driving shaft 11; A drive shaft 11 and a reverse rotation prevention mechanism portion 21 that prevents reverse rotation of the traveling roller 17 are provided. A rotational operation portion 14 is formed in which a rotational force is applied to the drive shaft 11 itself at an end portion of the drive shaft 11 going out from the frame base 1 to engage the ratchet wrench so that the travel roller 17 travels.
[Selection] Figure 1

Description

  This device is safe, reliable, and easy when moving and transporting large heavy objects such as machine tools, transformers, air conditioners, etc. in various factories, construction workplaces, etc. The present invention relates to a heavy material transport roller device that can be moved to

  Conventionally, when various kinds of machine tools, transformers, air conditioners and the like that are large and heavy in weight are installed or removed from a predetermined place, it is necessary to move and transport them. When moving or transporting, for example, a roller device having a roller (wheel) on the bottom surface on which these transported objects can be placed and which can freely roll is used. A heavy-duty carrying roller device has been proposed. The roller device of Patent Document 1 is configured by arranging a driving roller on a driving shaft and a driven roller on a driven shaft on a frame base on which a transported object to be moved and traveled can be placed. The outside end portion is provided with a rotation operation portion that meshes with a ratchet wrench that rotates the drive shaft, and is provided with a check mechanism that rotates the drive shaft only in one direction.

Registered Utility Model No. 3180121

  According to this roller device, the traveling movement of the roller device itself can be operated from either the left or right side, and not only is it easy to use, but also safely and easily moves a transported object without reversal during traveling traveling, Although it can be transported, the check mechanism is designed to check only the drive shaft and drive roller and can be moved by rotation of the driven roller itself, so it is difficult to say that the anti-reverse action is perfect. It was. In addition, since the end of the drive shaft for moving operation is provided outside the frame base, it is obstructed by the presence of the protruding portion as an extra protrusion when not in use or during storage. It was.

  Therefore, the present invention has been devised in view of the above-mentioned various circumstances, and its purpose is to reliably prevent the reverse operation caused by the reverse rotation of the roller during movement, for example, the descending operation on the traveling surface having the climbing gradient. In addition, the drive shaft with which the ratchet wrench meshes can be pulled out as a drive power transmission part that is activated during driving, so that it can be removed so that it does not get in the way when not in use or during storage. It is to provide a roller apparatus for use.

In order to solve the above-described problems, in the present invention, a description will be given by adding a use symbol in a form for carrying out the later-described invention, and a top plate 2 on which an article P can be placed and supported is provided on the upper surface. The frame base 1 and a center gear 12 supported on the left and right side portions of the frame base 1 at a central position along the moving direction can be rotated integrally with the center gear 12 and can be inserted in a detachable manner. The driving shaft 11 and the roller gear 18 meshing with the center gear 12, and the traveling roller 17 rotatably provided on the roller shaft 16 supported at the front and rear positions of the frame base 1, Provided on any one of the left and right side portions, a drive shaft 11 and a reverse rotation prevention mechanism portion 21 that prevents reverse rotation of the traveling roller 17 are provided. The features.
The cross-sectional shape of the drive shaft 11 and the cross-sectional shape of the shaft hole 13 of the center gear 12 through which the drive shaft 11 is inserted can both be formed in the same polygonal shape.
At the end of the drive shaft 11 that goes out from the center gear 12 disposed on the left and right side portions of the frame base 1, a rotation operation portion 14 having a polygonal shape in cross section can be formed. The reverse rotation prevention mechanism portion 21 is engaged with a ratchet gear 22 connected and fixed to the center gear 12 and an outer peripheral gear of the ratchet gear 22 at an end portion of the drive shaft 11 that is an outside portion of the frame base 1 in the drive shaft 11. The ratchet gear 22 is provided on the frame base 1 and the ratchet 23 which is slid on the gear surface when rotating in one direction but is locked to the gear surface when rotating in the reverse direction. The ratchet shaft 27 is supported in a swingable manner in a state where it is elastically urged.

In the heavy material transport roller device according to the present invention configured as described above, a reverse rotation prevention mechanism is provided by, for example, swinging a predetermined ratchet wrench L meshed with the rotation operation portion 14 of the drive shaft 11. The drive shaft 11 whose reverse rotation is prevented by the part 21 can be rotated only in one direction, and various transport items P placed on the frame base 1 are moved and transported.
The rotation operation unit 14 is an end portion of the drive shaft 11, and the rotation operation unit 14 is out of the frame base 1, so that the movement and running of the frame base 1 are operated from the outside of the frame base 1, and the reverse rotation prevention mechanism unit 21 is selected to mesh with or release from the ratchet gear 22 by swinging the ratchet 23, and the traveling roller 17 rotates in one direction or freely rotates via the drive shaft 11, the center gear 12, and the roller gear 18. Let me control.
In addition, the rotation operation portion 14 of the drive shaft 11 that goes out from the left and right side portions of the frame base 1 operates to move and travel the roller device itself from either the left or right side of the frame base 1, thereby preventing the reverse rotation prevention mechanism portion 21. The meshing of both the ratchet gear 22 and the ratchet 23 prevents the reverse rotation of all the traveling rollers 17 arranged before and after the drive shaft 11 via the drive shaft 11, the center gear 12, and the roller gear 18, thereby ensuring the reverse rotation operation. To stop.
Further, when the drive shaft 11 is inserted through the center gear 12, it is integrated by the polygonal shape of the matching cross section, rotates together, and does not reverse.
The drive shaft 11 spanned between the center gears 12 on the left and right side portions of the frame base 1 is removed from the frame base 1 by being pulled out, and no extra protrusion is formed outside the left and right side portions of the frame base 1. For example, it does not get in the way when not in use.

  Since the present invention is configured as described above, the movement of the roller device itself according to the present invention is moved by the rotation operation unit 14 in the drive shaft 11 arranged outside the left and right side portions of the frame base 1. It can be operated from either side, and the operation side can be selected according to the loading situation of the transported object P to be transported, so that the usability is improved. Further, by pulling out the drive shaft 11 that is passed through the center gear 12 on the left and right side portions, extra protrusions are not generated outside the left and right side portions of the frame base 1, for example, in the case of non-use storage. It will never be. Since the meshing of the ratchet gear 22 by the ratchet 23 in the reverse rotation prevention mechanism 21 is reliable, the reverse rotation is prevented with respect to all the traveling rollers 17 arranged before and after the drive shaft 11, and the traveling travels in one direction. Since there is no reversal of time, the transported item P and the like can be moved and transported safely, reliably and easily.

  That is, in this device, in this device, a frame base 1 for placing and supporting a transported article P, a drive shaft 11 spanned on a center gear 12 supported on the frame base 1 and removably inserted, and a center gear 12, a roller roller 18 that meshes with the roller base 12, and a travel roller 17 that is rotatably provided on a roller shaft 16 that is supported at the front and rear positions of the frame base 1, and a drive shaft 11 and a travel roller 17 that are provided on the frame base 1. This is because it includes a reverse rotation prevention mechanism unit 21 that prevents the reverse rotation of the motor. This prevents the reverse rotation of the drive shaft 11 by the reverse rotation prevention mechanism portion 21 to ensure the traveling of the traveling roller 17 in one direction during the rotation operation with respect to the drive shaft 11, and extra due to the extraction of the drive shaft 11 when not in use. Easiness of storage and the like in the whole form without a large protrusion can be achieved.

  Moreover, since the rotation operation part 14 is formed in the edge part of the drive shaft 11 going out from the right-and-left side part of the flame | frame base 1, by rocking | fluctuation operation by engagement of the ratchet wrench L with respect to this rotation operation part 14, Through the drive shaft 11 at the center position, the center gear 12, and the roller gear 18 provided on the roller shaft 16 disposed before and after the drive shaft 11, the front and rear of the drive shaft 11 can be obtained from any of the left and right sides of the frame base 1. It is possible to rotate all the traveling rollers 17 arranged in the.

  The reverse rotation prevention mechanism portion 21 is engaged with a ratchet gear 22 connected and fixed to the center gear 12 at the end of the drive shaft 11 and the gear of the ratchet gear 22, and on the gear surface when rotating in one direction of the ratchet gear 22. Although it slides, it has a ratchet 23 that is locked to the gear surface when rotating in the reverse direction, and a ratchet shaft 27 that is pivotably supported in a state where the ratchet 23 is elastically urged and repelled toward the gear surface side. Thus, since the drive shaft 11 is always rotated in one direction while preventing reverse rotation, the movement and transportation work by the roller device itself can be performed safely.

  Since the drive shaft 11 spans the center gear 12 supported on the left and right sides of the frame base 1 and is detachably inserted, when the drive shaft 11 is extracted from the center gear 12, the frame base 1 There are no extraneous protrusions on the outer sides of the left and right sides of the lens. For example, when it is not in use, this does not get in the way, and it is convenient for storage and moving only the roller device.

  When the drive shaft 11 is inserted into the center gear 12, the drive shaft 11 and the center gear 12 are integrated with each other by their matching cross-sectional shapes, and these can be rotated integrally. Application of the rotational force to 11 rotates the center gear 12 and also the roller gear 18 meshed with the center gear 12 to rotate the traveling roller 17. Thus, the integral rotation transmission configuration of the drive shaft 11 and the traveling roller 17 prevents the reverse rotation of the drive shaft 11 by the reverse rotation prevention mechanism unit 21, thereby preventing reverse traveling of the traveling roller 17.

  In addition, the code | symbol attached | subjected in each of the means for solving said subject, and the item of the effect of an invention was attached | subjected in order to make easy reference with the part which shows each structure part described in drawing. The present invention is not limited to the structure and shape shown by these descriptions and reference numerals in the drawings.

It is a partially notched top view which shows one form for implementing this device. Similarly, it is a partially cutaway front view. It is an exploded perspective view of the principal part similarly. It is an outline perspective view in an example at the time of use similarly. It is a perspective view when a drive shaft is similarly extracted when not in use.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment for carrying out the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the figure denotes a frame that can be moved on a moving traveling surface such as an installation / installation surface by a traveling roller 17 described later. Is the base. This frame base 1 is integrally formed so as to have a so-called thin bottom lid shape, which has a top surface portion, left and right side portions, and front and rear side portions having a predetermined thickness, with the bottom portion being open. In consideration of load resistance, a reinforcing frame is formed inside the frame base 1 as necessary. A top plate 2 having a non-slip treatment on the surface is provided at a substantially central position of the upper surface portion of the frame base 1 so as to be freely rotatable. It can be placed and supported. In addition, a traction connecting arm 3 extending in the front-rear direction is connected to the outer surface of the front and rear side portion of the frame base 1, and this connecting arm 3 allows a connecting shaft (not shown) or the like to be inserted therethrough. The insertion hole 4 is opened.

  The traveling roller 17 for moving the frame base 1 is driven and rotated at each of the front and rear positions so as to be driven and rotated by a drive shaft 11 serving as a bridge supported at a substantially central position between the left and right side portions of the frame base 1. As the left and right traveling rollers 17 provided on the front and rear roller shafts 16 supported in a bridge shape, for example, a total of four are provided.

  In the drawing, the drive shaft 11 is formed in a long axis shape having a polygonal shape, for example, a hexagonal shape in cross section, and an opening is formed at the center of a center gear 12 rotatably mounted on the left and right side portions of the frame base 1. The drive shaft 11 is rotated together with the center gear 12 by being supported by the frame base 1 by being inserted into a shaft hole 13 having a polygonal shape, for example, a hexagonal shape. As will be described later, the drive shaft 11 itself can be removed by being extracted from the center gear 12 (see FIG. 5), the outer side surfaces of the left and right side portions of the frame base 1, and further described later. The bearing position of the drive shaft 11 is supported by a ring washer 15 that is positioned on the outer surface of the reverse rotation prevention mechanism portion 21 and is detachably fitted into a recessed fixing groove formed in the drive shaft 11 itself. Is fixedly maintained.

  The drive shaft 11 has, for example, a hexagonal cross-section in which a socket portion of a commercially available ratchet wrench L is engaged with the end portion of the drive shaft 11 itself from the left and right sides of the frame base 1. The rotation operation unit 14 is provided. The traveling roller 17 is rotated through a drive shaft 11, a center gear 12, and a roller gear 18 described later by a swinging operation by a handle of the ratchet wrench L meshed with the rotation operation unit 14.

  The center gear 12 itself is rotatably mounted on the left and right side portions of the frame base 1 so as to be disposed on the outer side of the frame base 1, and the large gear diameter disposed on the inner side of the frame base 1. Part 12B. The large-diameter gear portion 12B is a roller shaft that rotatably supports the traveling roller 17 disposed on both sides of the drive shaft 11 disposed in the center of the frame base 1, that is, in the front and rear positions in the moving direction of the frame base 1. 16 is meshed with a roller gear 18 supported by 16. The roller gear 18 includes a press-fit portion 18A that is forcibly press-fitted to the end portion of the traveling roller 17 and a gear portion 18B that meshes with the gear large-diameter portion 12B, and is disposed in the frame base 1. Thus, the rotational drive of the drive shaft 11 causes the traveling roller 17 to be driven and rotated via the center gear 12 and the roller gear 18, and the rotation stop of the drive shaft 11 stops the rotation of the traveling roller 17. .

  In addition, a reverse rotation prevention mechanism portion 21 that prevents reverse rotation, that is, reverse rotation of the drive shaft 11, the traveling roller 17, and the like is provided on either the left or right side portion of the frame base 1. The reverse rotation prevention mechanism portion 21 in the illustrated example is disposed on the left side of the frame base 1 in the forward direction, for example, at the end portion of the drive shaft 11 that is the outboard portion of the frame base 1 in the drive shaft 11. The ratchet gear 22 connected and fixed by, for example, fitting to the center gear 12 and the outer gear of the ratchet gear 22 are engaged with each other, and when the ratchet gear 22 rotates in one direction, it slides on the gear surface, but in the reverse direction. And a ratchet shaft 27 which is provided on the frame base 1 and is pivotably supported in a state where the ratchet 23 is elastically biased toward the gear surface. .

  In the illustrated example, the ratchet gear 22 is provided so as to be located on the inner side, which is the frame base 1 side, of the rotation operation unit 14 provided in a portion of the drive shaft 11 that protrudes from the frame base 1. The ratchet 23 has a locking portion 24 on the lower surface that meshes with the ratchet gear 22 by its own weight, for example, in the valley between adjacent gears so as to mesh with the gear of the ratchet gear 22. And a weight portion 25 for urging the ratchet 23 itself to the meshing tendency toward the ratchet gear 22 by its own weight.

  The ratchet shaft 27 shown in the drawing is formed by extending one end of the roller shaft 16 supported on the frame base 1 along the left-right direction to the outside of the frame base 1. It is. Further, the ratchet 23 itself has a latching portion formed at the front portion of the ratchet 23 because the lower end of the base portion of the ratchet 23 is elastically urged and repelled upward by a spring piece 26 provided in the vicinity of the ratchet shaft 27. 24 is always in a repulsive contact with the gear surface of the ratchet gear 22 from above.

  Reference numeral 28 in the figure denotes a ratchet cover that covers the ratchet gear 22, ratchet 23, spring piece 26, etc. in the reverse rotation prevention mechanism 21.

  Next, an example of the use of this will be described. On the top plate 2, a ratchet 23 in the reverse rotation prevention mechanism unit 21, while a predetermined transport object P to be moved and transported, for example, a machine tool, an air conditioner or the like is placed on the top plate 2. The ratchet gear 22 is meshed with the drive shaft 11 being allowed to rotate in the moving direction. Next, the drive shaft 11 may be rotated by engaging the rotation operation portion 14 of the drive shaft 11 with a socket portion of a predetermined ratchet wrench L and swinging the ratchet wrench L back and forth. This rotates the front and rear traveling rollers 17 in the same direction via the center gear 12 and the roller gear 18 (see FIG. 2). At this time, in the reverse rotation prevention mechanism unit 21, the ratchet 23 meshes with the ratchet gear 22 even if the drive shaft 11 and the traveling roller 17 are rotated in the direction opposite to the permitted rotation direction of the drive shaft 11. Any of the traveling rollers 17 is prevented from rotating backward, and for example, even if it moves and travels on an uphill surface, it does not fall down.

  In the reverse rotation prevention mechanism 21, the ratchet 23 that meshes with the ratchet gear 22 is released, so that the drive shaft 11 and the traveling roller 17 can be freely rotated in any direction. Further, according to the size of the transported material P, the device can be used by arranging the devised roller device at the front and rear of the transported material P, at the four corners, or at many points (not shown). If necessary, a pipe having a predetermined length is connected to the ratchet wrench L so that the ratchet wrench can be swung smoothly.

  Further, when not in use, as shown in FIG. 5, the drive shaft 11 may be extracted from one of the left and right center gears 12 and stored separately. The rotation operation unit 14 which is a part does not make a business trip from the side of the frame base 1 and is convenient for storage and the like.

  Even when the roller device of the present invention is used to move and travel only in one direction due to the non-return action by the reverse rotation prevention mechanism portion 21, the rotation operation portion 14 is provided at each end of the drive shaft 11, and the reverse rotation prevention mechanism portion. By providing 21, it is possible to move and travel in a predetermined direction by changing and selecting the front and rear direction in the frame base 1.

P ... Material 1 ... Frame base 2 ... Top plate 3 ... Connecting arm 4 ... Insertion hole 11 ... Drive shaft 12 ... Center gear 12A ... Circular small diameter portion 12B ... Gear large diameter portion 13 ... Shaft hole 14 ... Rotation operation portion 15 ... Ring washer 16 ... Roller shaft 17 ... Running roller 18 ... Roller gear 18A ... Press fit part 18B ... Gear part 21 ... Reverse rotation prevention mechanism part 22 ... Ratchet gear 23 ... Ratchet 24 ... Locking part 25 ... Weight part 26 ... Spring piece 27 ... Ratchet shaft 28 ... Ratchet cover

Claims (4)

  A frame base that has a top plate on the upper surface that can carry and support a transported object, and a center gear that is supported on the left and right sides of the frame base at a central position along the moving direction, can be rotated integrally with the center gear. A drive shaft that is bridged and removably inserted; a roller gear that meshes with the center gear; and a travel roller that is rotatably provided on a roller shaft supported at the front and rear positions of the frame base; A heavy article carrying roller device, comprising: a drive shaft and a reverse rotation prevention mechanism portion that prevents reverse rotation of the traveling roller, provided on either the left or right side of the frame base.   The heavy-duty carrying roller device according to claim 1, wherein a cross-sectional shape of the drive shaft 11 and a cross-sectional shape of the shaft hole 13 of the center gear 12 through which the drive shaft 11 is inserted are formed in the same polygonal shape.   The heavy load carrying roller device according to claim 1 or 2, wherein a rotation operation portion having a polygonal shape in cross section is formed at an end portion of the drive shaft that goes out from a center gear arranged on the left and right side portions of the frame base. .   The reverse rotation prevention mechanism portion is an end portion of the drive shaft that is an outer portion of the frame base in the drive shaft, and is engaged with a ratchet gear that is connected and fixed to the center gear, and an outer peripheral gear of the ratchet gear, and in one direction of the ratchet gear. Although it slides on the gear surface during rotation, the ratchet that engages the gear surface when rotating in the reverse direction and the frame base are provided to swing freely in a state where the ratchet is elastically urged toward the gear surface. 4. The heavy material transport roller device according to claim 1, further comprising a ratchet shaft that is supported.

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