JP5812305B2 - Caster wheel part removal jig and caster support jig - Google Patents

Description

  The present invention relates to a caster wheel part removing jig and a caster supporting jig used when removing only a wheel part of a caster provided on a moving table such as a wagon.

  Conventionally, for heavy equipment such as wagons and moving tables and precision electronic equipment that need to be moved, the wheel part and the wheel part are surrounded to enable smooth movement. In many cases, a so-called caster composed of a housing portion having an attachment portion for attachment to a moving table or the like is attached to the bottom thereof. The caster has a relationship in which the wheel portion and the attachment portion of the housing portion can be rotated by a bearing or the like. For this reason, when the caster is to be attached to the leg of the moving table, there is a problem that the caster rotates idly and the screw of the attaching portion is difficult to be screwed into the leg of the moving table, so that it takes time to attach. In the following Patent Documents 1 to 3, an invention or an invention relating to a technique for facilitating the attachment / detachment of a caster to / from an attachment object is proposed in relation to such a problem.

Japanese Utility Model Publication No. 7-9602 JP 2001-187908 A JP 2001-130206 A

  Here, the more the moving platform, equipment, etc., to which the casters are attached, the more worn out, scratched, or dirty, the wheel part surrounds the wheel part, although it needs to be replaced or cleaned. The housing is relatively rarely worn or dirty, and its necessity is low. Conversely, the heavier the object to which the casters are attached, the quicker and more severely the wheel portion is damaged, and the replacement time tends to be earlier. Accordingly, there is a need for tools and instruments that can remove only the wheel portion from the casing portion of the caster and attach the wheel portion to the casing portion. Further, there is a demand for removing only the wheel portion from the casing portion of the caster and cleaning the dust sandwiched between the casing portion and the wheel portion of the caster. However, in the said patent documents 1-3, it is not mentioned about removing only the wheel part of a caster. In addition, it is not impossible to remove the wheel from the casing of the caster by using a flat-blade screwdriver, but in that case there is a risk of scratching the wheel. If you do, there is a risk of eventually damaging the floor.

  In addition, it is convenient if only the wheel part can be removed from the casing part of the caster while the equipment is placed on the stage in the moving base. If the caster is mounted with precision electronic components and handles moisture and the like at the same time, it will be necessary to defeat the wheel and proceed with the wheel replacement work. There is a case where it is impossible. In addition, according to the Electrical Appliance and Material Safety Law, it is required to handle a specific electronic device with an inclination (for example, an inclination of 10 degrees or less) that does not fall down. Therefore, there is a need for a support tool that can proceed with the replacement work while floating the wheel portion of a caster attached to one corner of the attachment object without tilting the attachment object. In addition, since the burden on the operator is great because the caster is exchanged by tilting the attachment object, avoiding this can provide an advantage of reducing the burden on the operator.

  The present invention has been proposed in view of the above circumstances, and is used with a caster wheel part removing jig capable of easily and easily removing a wheel part from a so-called caster casing, and a caster wheel part together with a caster wheel part removing jig. It is an object of the present invention to provide a caster support jig that plays a role of assisting the removal of a part and can also play a role of a support tool that supports an attachment object such as a moving table.

  In order to achieve the above object, the present invention is formed in a substantially U shape from a base portion on the closing side and an arm portion on the open side, and each of the arm portions is provided with a protruding piece portion protruding in a facing direction. This is a jig for removing a caster wheel part. In particular, a center piece portion extending from the base portion to between the protruding piece portions is provided. The distal end portion of the arm portion is also characterized in that the diameter is reduced toward the distal end.

  Moreover, the caster wheel part removing jig according to the present invention has the above-described configuration, and includes a shaft body having a predetermined length, a wheel part comprising wheel bodies provided at both ends of the shaft body, and the wheel part. A housing body is formed by being curved so as to surround the wheel body, and on the side surrounding the wheel body of the housing body, a fitting body having a fitting recess for fitting with the shaft body is provided, The wheel portion of the caster configured to include a housing portion provided with an attachment body to be attached to an attachment object on a side opposite to the side surrounding the wheel body of the housing body is removed from the housing portion. The arm portion is pressed so that the projecting piece portions approach each other, and the projecting piece portion is inserted into a gap between the wheel body surrounded by the housing body and the housing body. Thus, the fitting recess and the shaft body are fitted. Characterized in that is released. In particular, the extended tip portion of the central piece portion has a curved shape corresponding to the surface shape of the housing body opposite to the side surrounding the wheel body, and the protruding piece portion is formed on the wheel body. A curved shape corresponding to the outer periphery is provided.

  Further, the present invention provides a caster support jig capable of lifting and supporting the caster in order to assist the removal of the wheel part from which the caster wheel part removal jig having the above-described configuration is used. A base part that has a flat surface and supports the weight of the object to which the casters are attached with the flat surface as a bottom surface, and stands from one end of the base part, and the base part And an upright portion formed with a protruding portion that protrudes substantially parallel to the flat surface of the base portion at an upstanding tip. In addition to this configuration, the caster support jig according to the present invention is configured such that the upright portion is submerged between the wheel main bodies and the base portion is in contact with the casing main body, The projection is brought into contact with the fitting body and the caster is lifted by being moved so that the flat surface becomes a bottom surface with one end portion as a fulcrum.

  In particular, claw-like pieces that fit into the fitting body in a state in which the casters are lifted are provided at both ends in the width direction of the protrusions. Furthermore, it has a groove part dug in the direction which the said protrusion part protrudes in the surface contact | abutted with the said fitting body in the said protrusion part. In addition, a convex portion is provided on the one end side of the surface of the base portion opposite to the flat surface as a mark for bringing the base portion into contact with the housing body. In addition, a rail corresponding to the shape of the wheel portion is formed on the surface of the base portion opposite to the flat surface, and the one end portion side of the rail has a curved shape corresponding to the outer periphery of the wheel body. It is also characterized by having.

  The present invention is a caster wheel part removal jig that can remove only a wheel part from a so-called caster that includes a wheel part and a casing part that surrounds the wheel part and has a mounting body for an attachment object. Concerning. The present invention is formed in a substantially U shape from a base portion on the closing side and an arm portion on the open side, and each arm portion is provided with a protruding piece portion protruding in a facing direction. Also, by pressing the arm part so that the protruding piece parts approach each other and inserting the protruding piece part into the gap between the wheel body surrounded by the casing body and the casing body, the wheel body and the casing body The stress is exerted in the direction of releasing and the fitting recess and the shaft body are released from fitting.

  Therefore, it becomes possible to remove only the wheel part of the caster that is damaged due to wear or the like and needs to be replaced, and it is possible to eliminate the waste of replacing the caster together with the casing part. Of course, it is possible to remove and clean only the wheels of the dirty caster. Removing only the wheel part of the caster is achieved by a simple operation of pressing the arm part in the direction approaching each other and inserting the protruding piece part into the gap between the wheel body and the housing body. It can be provided as a wheel part removal jig.

  Furthermore, this invention is the structure by which the center piece part extended | stretched toward between the protrusion piece parts from a base is provided. The extended front end portion of the central piece has a curved shape corresponding to the surface shape on the side opposite to the side surrounding the wheel body of the housing body. As a result, the caster wheel part removal jig can be positioned on the housing body using the central piece part, so that the protruding piece part can be inserted into the gap between the wheel body and the housing body more easily. Work can be made more efficient. In addition, since the protruding piece portion has a curved shape corresponding to the outer periphery of the wheel body, even with this configuration, the protruding piece portion can be inserted into the gap between the wheel body and the housing body more smoothly. It becomes possible to make work more efficient.

  Moreover, this invention is the structure by which the front-end | tip part of the arm part is thinned toward the front-end | tip. Therefore, at the tip of the tip of the arm that is reduced in diameter, there is a gap that exists in the joint between the mounting body and the object to be mounted, a gap between the wheel body and the housing body, and a joint between the wheel body and the shaft body. Since it is possible to clean the dust and the like clogged in the gaps, the caster wheel part removal jig can be provided more conveniently.

  The present invention relates to a caster supporting jig capable of lifting a caster in order to assist the removal of the wheel part from which the caster wheel part removing jig is used from the casing. The configuration has a flat surface, a base portion that supports the weight of an object to which casters are attached with the flat surface as a bottom surface, and stands up from one end portion of the base portion, and is substantially L-shaped with the base portion. And a standing part provided with a protruding part that protrudes substantially parallel to the flat surface of the base part at the standing tip. The protruding part is fitted by moving the upright part between the wheel body of the caster and moving the flat surface to the bottom surface with one end as a fulcrum while the base part is in contact with the chassis body. It has an action of lifting the caster using the lever principle by contacting the unit. Therefore, a considerable weight including the attachment object can be lifted with a relatively light force.

  Furthermore, since the caster can be lifted with a light force, it is possible to smoothly remove the wheel part from the casing by the caster wheel part removing jig, and it is possible to assist the removal of the caster wheel part. Since the caster is lifted, the object to be attached can be supported without falling down, and the replacement work can be proceeded by floating the wheel part in the air. With the configuration in which the protruding portion is provided on the upright portion, when the caster is lifted together with the object to be attached, the protruding portion is caught by the fitting body of the caster, thereby preventing slippage between the caster and the caster. In addition, it is possible to prevent the caster from unintentionally rotating during support. Thereby, an attachment target object can be supported stably.

  The present invention has a configuration in which claw-like pieces that are fitted into the fitting body are provided at both ends in the width direction of the protruding portion in a state where the caster is lifted. With this configuration, when the caster is lifted together with the object to be mounted, both ends in the width direction of the fitting body of the caster are locked to the claw-like pieces, and slippage between the caster support jig and the caster can be reliably prevented. . Further, it is possible to effectively prevent the casters from rotating. Even if the fitting part of the caster exists in the fitting body of the caster by the structure having the groove part dug in the protruding direction on the surface of the protruding part that contacts the fitting body, the fitting part is accommodated in the groove part even when the fitting part of the caster exists. The slip which generate | occur | produces between the jig | tool for a support and a caster can be prevented.

  Furthermore, this invention is the structure by which the convex part as a mark which makes a base part contact | abut to a housing body is provided in the one end part side of the surface on the opposite side to the flat surface in a base part. With this configuration, the caster can be lifted without fail by bringing the protruding portion into contact with the fitting body through the convex portion. By attaching the caster to the caster supporting jig according to the present invention with the convex portion as a mark, it is possible to easily attach the removed wheel portion to the housing portion again.

  In the present invention, a rail corresponding to the shape of the wheel portion is formed on the surface of the base portion opposite to the flat surface, and one end portion side of the rail has a curved shape corresponding to the outer periphery of the wheel body. With this configuration, the wheel part removed from the housing part can be placed on the rail as it is so that the wheel part does not play, preventing an event such as the wheel part rolling and disappearing somewhere. be able to.

It is a partial cross section explanatory drawing which shows a part (caster) by a cross section, and shows the scene which applies the jig for wheel caster part removal which concerns on this invention to a caster, and removes the wheel part. The caster wheel part removal jig | tool which concerns on this invention is shown schematically, (a) is the perspective view, (b) is the front view, (c) is the right view, (d) is the top view. is there. 1 shows an overall outline of a jig for supporting casters according to the present invention, (a) is a perspective view thereof, (b) is a rear view thereof, (c) is a plan view thereof, (d) is a front view thereof, (e). Is a right side view thereof. It is a partial cross-section explanatory drawing which shows the scene (caster) by a cross section, and shows the scene which the jig | tool for caster support concerning this invention applies to a caster. It is explanatory drawing which shows a part of state which removes a wheel part from a caster by this invention, showing a part (caster) in cross section, (a) is a caster support jig | tool for removing a wheel part. Explanatory drawing explaining the scene which lifted up, (b) Explanatory drawing explaining the scene which applies the caster wheel part removal jig | tool to a caster in order to remove a wheel part, (c) A wheel part is removed from a caster It is explanatory drawing explaining a mode that the attachment target object (moving stand) is supported by the caster support jig | tool. The outline of the other jig | tool for a caster wheel part removal is shown, (a) is the perspective view, (b) is the top view, (c) is the front view, (d) is the right view. Furthermore, it is a perspective view which shows the outline whole of the other jig | tool for a caster wheel part removal.

  Hereinafter, an embodiment relating to removal of a wheel part of a caster performed using a caster wheel part removing jig and a caster supporting jig according to the present invention will be described with reference to the drawings. This embodiment is merely an example embodying the configuration of the present invention, and various design changes can be made to the present invention without departing from the matters described in the claims.

  As shown in FIG. 1, the caster wheel part removing jig 1 according to the present invention removes only the wheel part 100 from a caster 10 including a wheel part 100 and a casing part 200 surrounding the wheel part 100. Used to.

  The caster 10 includes a wheel body 100 including a shaft body 110 having a predetermined length and wheel bodies 120 provided at both ends of the shaft body. The housing part 200 has a housing body 210 that is formed so as to be bent so that the wheel body 120 is surrounded. A fitting body 220 having a fitting recess 230 that fits with the shaft body 110 is provided on the side of the casing body 210 surrounding the wheel body 120. In addition, an attachment body 240 provided with a screwing member such as a screw attached to an attachment object is provided on the opposite side of the housing body 210 from the side surrounding the wheel body 120.

  As shown in FIGS. 2A to 2D, a caster wheel part removing jig 1 according to the present invention has a substantially U-shape having flexibility from a base part 12 on the closing side and an arm part 11 on the opening side. It is molded into. Specifically, it is formed in a substantially U-shape from a pair of substantially U-shaped open-side arm portions 11 and a closing-side base portion 12 that is curved by connecting these arm portions 11 to each other. Each of the pair of arm portions 11 is provided with a protruding piece portion 11a. The protruding piece portions 11a protrude from the pair of arm portions 11 in a direction facing each other. Further, the projecting piece portion 11 a is a curved piece corresponding to the outer periphery of the wheel body 120 of the caster 10. The base 12 has a curved shape that bulges in the width (distance) between the pair of arms 11 (see FIG. 2D). The caster wheel part removal jig 1 according to the present invention has a property of bending when the arm part 11 is pressed.

  The caster wheel part removing jig 1 is provided with a central piece part 13 extending from the middle point 12a of the base part 12 to between the protruding piece parts 11a. The extended tip portion 13a of the central piece 13 has a curved shape corresponding to the surface shape on the side opposite to the side surrounding the wheel body 120 of the housing body 210 (see FIG. 2A). . Further, the central piece 13 extends slightly upward toward the open side (tip 13b) with respect to the arm 11 and the base 12 forming a substantially U shape (see FIG. 2C). The extended tip 13b of the central piece 13 is a curved side corresponding to the outer peripheral shape of the mounting body 240 of the housing part 200 (see FIGS. 2A and 2C).

  As shown in FIG. 1, the wheel part 100 of the caster 10 is removed from the casing part 200 by applying the caster wheel part removing jig 1 according to the present invention to the caster 10.

  That is, the front end portion 13a of the central piece 13 is placed along the surface of the caster 10 opposite to the side surrounding the wheel main body 120 of the casing main body 210, and the front end 13b of the central piece 13 is brought into contact with the mounting body 240. The caster wheel part removing jig 1 is positioned on the casing main body 210 in contact therewith.

  Then, the pair of arm portions 11 are pressed and bent so that the protruding piece portions 11a come close to each other, and the protruding piece portion 11a is surrounded by the casing main body 210 of the caster 10; Insert into the gap with the main body 210. As a result, stress in a direction in which the wheel main body 120 and the housing main body 210 are separated from each other is generated in the protruding piece portion 11a by the curved shape, and the fitting recess 230 and the shaft body are unfitted.

  The caster wheel part removal jig 1 is positioned on the casing body 210 because the extended tip portion 13a of the central piece 13 is opposite to the side surrounding the wheel body 120 of the casing body 210. This is because it has a curved shape corresponding to the surface shape. The center piece 13 extends slightly upward toward the open side (tip 13b) with respect to the arm 11 and the base 12 forming a substantially U shape, and the casing of the caster wheel part removal jig 1 This contributes to reliable positioning on the main body 210.

  Further, the reason why the protruding piece portion 11a can be efficiently inserted into the gap between the wheel body 120 and the housing body 210 is that the protruding piece portion 11a is a curved piece corresponding to the outer periphery of the wheel body 120. It is. Since the base 12 has a curved shape that swells in the width of the pair of arms 11 rather than the width of the pair of arms 11, the pair of arms 11 can be bent with a light force so that the protruding pieces 11a approach each other. It becomes possible. Due to the bulging curved shape of the base portion 12, it is possible to generate a stress in the protruding piece portion 11a in a direction in which the wheel main body 120 and the housing main body 210 are separated with a light force.

  The present invention also relates to a caster support jig 2 that assists the removal of the wheel part 100 from the housing part 200 by the caster wheel part removal jig 1 and can lift and support the caster 10. . As shown in FIGS. 3A to 3E, the caster support jig 2 is formed in a substantially L shape.

  Specifically, it has a flat surface 21a and stands up from a base portion 21 that supports the weight of an object to which the caster 10 is attached with the flat surface 21a as a bottom surface, and one end portion 211 of the base portion 21. It consists of the upright part 22 shape | molded by the base part 21 so that it may become a substantially L shape. A protruding portion 221 that protrudes substantially parallel to the flat surface 21 a of the base portion 21 is provided at the rising end of the rising portion 22.

  On the surface of the base portion 21 opposite to the flat surface 21a, a rail 21b having a convex shape in cross section corresponding to the shape of the wheel portion 100 including the shaft body 110 and the wheel main body 120 is formed. A curved portion 21b1 as a curved shape corresponding to the outer periphery of the wheel main body 120 is formed on the one end 211 side of the rail 21b. A convex portion 21b2 is provided on the rail 21b in the vicinity of the curved portion 21b1 (see FIGS. 3A and 3E).

  Claw-like pieces 221a are provided at both ends in the width direction of the protruding portion 221 (see FIGS. 3B and 3D). Further, on the surface of the protruding portion 221 on which the claw-like piece 221a is provided, a groove is dug parallel to the protruding direction to form a groove portion 221b (see FIG. 3C and the like).

  As shown in FIG. 4, when the caster supporting jig 2 is used to assist the removal of the wheel part 100 from the housing part 200 by the caster wheel part removing jig 1, the upright part 22 is attached to the caster 10. It is immersed between the wheel main bodies 120 in the wheel unit 10. At this time, the upright portion 22 is allowed to sink until the housing body 210 abuts against the convex portion 21b2 on the one end portion 211 side of the rail 21b. Then, the caster 10 is lifted by bringing the protruding portion 221 into contact with the fitting body 240 side of the fitting body 220 in the housing portion 200 by moving the flat surface 21a to be the bottom surface with the one end portion 211 as a fulcrum. It is.

  When the caster 10 is lifted, the projecting shape of the projecting portion 221 can prevent slippage between the caster supporting jig 2 and the caster 10. Further, the claw-like pieces 221 a at both ends in the width direction of the protruding portion 221 are fitted from the outside at both ends in the width direction of the fitting body 220 to the attachment body 240 side of the fitting body 220 in the housing portion 200. Thereby, it is possible to prevent the caster supporting jig 2 and the caster 10 from slipping and to prevent the caster 10 from rotating about the attachment body 240 as the rotation axis.

  Further, the groove 221b formed on the surface of the projecting portion 221 that comes into contact with the fitting body 220 makes it possible to accommodate the projecting piece even when the fitting piece 220 has a projecting piece that is a mating part by molding. Slip generated between the caster supporting jig 2 and the caster 10 can be prevented.

  Hereinafter, with reference to FIGS. 5 (a) to 5 (c), the manner in which the wheel unit 100 is removed from the caster 10 using the caster wheel unit removing jig 1 and the caster supporting jig 2 will be briefly described. Go.

  First, as described above, the upright portion 22 of the caster supporting jig 2 is inserted between the wheel main bodies 120. In particular, the upright portion 22 is allowed to sink between the wheel main bodies 120 until the housing main body 210 abuts on the convex portion 21b2 on the one end 211 side of the rail 21b. Subsequently, the base portion 21 is rotated with the one end portion 211 as a fulcrum so that the flat surface 21a becomes the bottom surface, and the projecting portion 221 is brought into contact with the fitting body 240 side of the fitting body 220 in the casing portion 200, thereby 10 is lifted (see FIG. 4).

  Then, as shown in FIG. 5A, the caster 10 is supported by the base portion 21 while the protruding portion 221 abuts on the attachment body 240 side of the fitting body 220 in the housing portion 200. The caster 10 is lifted from the floor by the length (height) of the portion 22.

  Subsequently, as shown in FIG. 5 (b), with respect to the caster 10 lifted from the floor, the tip end portion 13 a in the central piece portion 13 of the caster wheel portion removing jig 1 is replaced with the wheel portion 100 of the housing body 210. Along the surface on the opposite side to the surrounding side. Further, the tip 13 b of the central piece 13 is brought into contact with the mounting body 240, and the caster wheel part removal jig 1 is positioned on the casing body 210.

  Finally, with the caster wheel part removal jig 1 positioned on the housing body 210, the pair of arm parts 11 are pressed and bent so that the protruding piece parts 11a approach each other, and the protruding piece part 11a is bent. It is inserted into the gap between the wheel body 120 of the caster 10 and the housing body 210. Thereby, as shown in FIG. 5C, the fitting recess 230 and the shaft body 110 are unfitted and only the wheel part 100 can be removed from the caster 10.

  Note that the caster support jig 2 may be left in the state shown in FIG. 5C as long as the object to be attached to which the caster 10 such as the moving base is fixed on the spot. In addition, since a rail 21b having a convex shape in cross section corresponding to the shape of the wheel portion 100 including the shaft body 110 and the wheel main body 120 is formed on the surface opposite to the flat surface 21a of the base portion 21, FIG. As shown to c), it can prevent that the wheel part 100 removed from the housing | casing part 200 is mounted on the rail 21b, and it rolls and disappears somewhere.

  Further, since the fitting body 220 is supported by the projecting portion 221 of the caster supporting jig 2, and the wheel portion 100 is lifted from the floor and floats in the air, the shaft body 110 of the replaced wheel portion 110 is fitted into the fitting recess. It becomes easy to fit to 230. That is, since the end portion 211 side of the rail 21b is a curved portion 21b1 corresponding to the outer periphery of the wheel body 120, the flat surface 21a is located on the side surface with the end portion 211 as a fulcrum while placing the wheel portion 100 on the curved portion 21b1. By rotating the base portion 21 and lowering the caster 10 as described above, the shaft body 110 can be easily fitted into the fitting recess 230 in the housing portion 200. When the wheel portion 100 is placed on the rail 21b, the convex portion 21b2 can be used as a mark, which is convenient. As a result, it is possible to restore the function of the caster 10 by attaching the removed wheel unit 100 to the housing unit 200 again.

  Therefore, in the present invention, by using the caster wheel part removing jig 1 and the caster supporting jig 2, it is possible to remove only the wheel part 100 of the caster 10 which is damaged due to wear or the like and needs to be replaced. It becomes. The dirt of the wheel part 100 of the removed caster can be easily cleaned. Furthermore, the operation of the caster wheel part removal jig 1 presses and flexes the pair of arm parts 11 so that the protruding piece parts 11a approach each other, and the protruding piece parts 11a are connected to the wheel main body 120 and the casing main body 210. Therefore, the caster wheel part removing jig 1 can be provided very conveniently.

  Furthermore, the caster supporting jig 2 can lift the caster 10 by a simple operation of rotating the base portion 21 so that the flat surface 21a becomes the bottom surface with the one end portion 211 as a fulcrum. For this reason, it becomes useful as an auxiliary tool of the caster wheel part removal jig 1. In particular, even the caster 10 attached to an attachment object that cannot be overturned, such as a moving table or a heavy object on which fixtures are placed, can be easily obtained by the caster support jig 2. Can be lifted. Therefore, the replacement work of the wheel part 100 can be advanced by the caster supporting jig 2 without defeating the attachment object.

  Here, as shown in FIG. 6, in the caster wheel part removal jig 1 a according to the present invention, a square-shaped thin part 11 b that is thinned toward the tip is provided at the tip of the arm part 11. A configuration can be employed. With the configuration in which the small diameter portion 11b is provided, a gap existing in a joint portion between the attachment body 240 and the attachment target, a gap between the wheel main body 120 and the casing main body 210 in the caster 10, and a wheel main body 120 and a shaft in the wheel portion 100 are provided. It is possible to clean dust, hair, and the like that are clogged in a gap or the like that exists in a joint portion with the body 100. That is, it can be provided as a more convenient caster wheel part removal jig 1. And as shown in FIG. 6, it is preferable that the narrow diameter part 11b employ | adopts a structure suitable for scraping out clogged garbage etc., such as making it the form which bent the front-end | tip.

  Furthermore, as shown in FIG. 7, the present invention is formed in a substantially U shape from the base portion on the closing side and the arm portion on the open side, and each arm portion is provided with a protruding piece portion that protrudes in the facing direction. A caster wheel part removing jig provided with a central piece part extending from the base part to the protruding piece part may be provided with a handle part shaped like a so-called scissor handle. it can. In this embodiment, one of the handle parts is fixed and the other of the handle parts is movable. Further, the arm part continuous with the movable handle part can be operated, and the other arm part does not move no matter how the handle part is operated. Then, after positioning the caster wheel part removing jig on the casing body of the caster using the central piece part, one of the arm parts is operated by operating the handle part on the movable side, By inserting the protruding piece into the gap between the wheel body and the housing body, the wheel portion of the caster can be removed from the housing portion. When positioning the caster wheel part removal jig on the housing body, the protruding piece provided on the other non-moving arm is inserted in advance into the gap between the wheel body and the housing body. This is effective for removing the wheel part of the caster smoothly.

  Although one embodiment of the present invention has been described above as an example, the present invention can be modified in various ways without departing from the scope of the claims. The caster wheel part removing jig and the caster supporting jig can be made of various materials such as those made of synthetic resin and metal. As a caster wheel part removal jig, the arm part is provided with flexibility and flexibility that can be pressed in directions to approach each other when molded into a substantially U shape, for example, when molded. Is preferred. Moreover, it is preferable to provide the caster support jig with a strength capable of supporting the weight of an object to be attached to which a caster such as a moving table is attached at the time of molding.

1 ... Caster wheel part removal jig (present invention)
1a... Caster wheel part removal jig (present invention)
DESCRIPTION OF SYMBOLS 11 ... Arm part 11a ... Projection piece part 11b ... Small diameter part 12 ... Base part 12a ... Middle point 13 ... Central piece part 13a ... Tip part 13b ... -Tip 2 ... Caster support jig (present invention)
21... Base portion 211... One end 21 a. Flat surface 21 b. Rail 21 b 1 .. Curved shape 21 b 2 .. Projection portion 22... Standing portion 221. ··· Caster 100 · · · Wheel portion 110 · · · Shaft body 120 · · · Wheel body 200 · · · Case portion 210 · · · Case body 220 · · · Fitting body 230 · · · Fitting recess 240 · · · ..Mounting body

Claims (11)

It is formed in a substantially U shape from the base portion on the closing side and the arm portion on the open side, and each arm portion is provided with a protruding piece portion that protrudes in the facing direction.
Caster wheel removal tool characterized by the above. A central piece extending from the base toward the protruding piece is provided.
The caster wheel part removing jig according to claim 1, wherein: The distal end portion of the arm portion is reduced in diameter toward the distal end.
The caster wheel part removing jig according to claim 1 or 2, wherein the caster wheel part removing jig is provided. A wheel body comprising a shaft body of a predetermined length and a wheel body provided at both ends of the shaft body;
A case main body is formed by being curved so as to surround the wheel main body of the wheel portion, and a fitting recess that fits the shaft body is provided on the side of the main body surrounding the wheel main body. A housing portion provided with a mounting body to be attached to the mounting target portion on the side opposite to the side surrounding the wheel body of the housing body;
Applied to remove the wheel part of the caster composed of the housing part,
The arm portion is pressed so that the protruding piece portions approach each other, and the protruding piece portion is inserted into a gap between the wheel main body surrounded by the casing main body and the casing main body, so that the fitting is performed. The mating recess and the shaft body are unfitted,
The caster wheel part removing jig according to any one of claims 1 to 3, wherein the jig is for removing caster wheels. The extended end portion of the central piece has a curved shape corresponding to the surface shape on the side opposite to the side surrounding the wheel body of the housing body,
The protruding piece portion has a curved shape corresponding to the outer periphery of the wheel body,
The caster wheel part removing jig according to any one of claims 2 to 4, wherein the jig is for removing caster wheels. The caster wheel part removal jig according to any one of claims 1 to 5, wherein the caster wheel part removing jig is used to lift and support the caster in order to assist in removing the wheel part from the housing part. A caster support jig that can be used,
A base portion that has a flat surface and supports the weight of the object to which the caster is attached with the flat surface serving as a bottom surface; and stands up from one end of the base portion; And a standing part provided with a protruding part that protrudes substantially parallel to the flat surface of the base part at the standing tip.
A jig for supporting casters. The upright portion is buried between the wheel bodies, and the base portion is moved so that the flat surface becomes a bottom surface with the one end portion as a fulcrum while the base portion is in contact with the housing body. The caster is lifted by the protrusion projecting against the fitting body,
The caster supporting jig according to claim 6. In the state where the caster is lifted, claw-like pieces that fit into the fitting body are provided at both ends in the width direction of the protruding portion.
The caster supporting jig according to claim 7, wherein: On the surface of the projecting portion that comes into contact with the fitting body, the projecting portion has a groove dug in the projecting direction.
The caster support jig according to claim 7 or claim 8, wherein the caster support jig is provided. A convex portion as a mark for bringing the base portion into contact with the housing body is provided on the one end portion side of the surface of the base portion opposite to the flat surface.
The caster supporting jig according to any one of claims 7 to 9, wherein the jig is used for supporting casters. A rail corresponding to the shape of the wheel portion is formed on the surface of the base portion opposite to the flat surface, and the one end portion side of the rail has a curved shape corresponding to the outer periphery of the wheel body. ,
The caster supporting jig according to any one of claims 7 to 10, wherein the jig is used for supporting casters.

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