JPH0650904U - Caster with level adjuster - Google Patents

Abstract

(57) [Summary] [Purpose] To simplify the structure by reducing the processing of the equipment to be attached. [Structure] Mounting base 11 on which casters 12 are supported
Then, the adjuster bolt 24 of the level adjuster 13 is screwed and supported at a proper distance from the caster 12. At these supporting positions, the depths d ₁ and d ₂ are set so that the upper ends 28 of the support bolts 21 and the adjuster bolts 24, which are the supporting members of the caster 12, do not exceed the mounting upper surface 26 of the mounting base 11.
To form stepped seat portions 14 and 15 which are depressed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a caster with an adjuster, in which a moving caster for various small and medium-sized equipment and a level adjusting adjuster when installed and fixed are provided on the same mounting base.

[0002]

[Prior art]

 Generally, various OA equipments, small and medium-sized processing equipments, measuring equipments, etc. are often installed and relocated, and therefore casters for movement and level adjusters for fixing and leveling after positioning are placed on the bottom of the four corners of the equipment. It is attached (see Japanese Utility Model Laid-Open No. 64-44203, Japanese Utility Model Laid-Open No. 4-59992, etc.).

As shown in FIG. 6 and FIG. 7, among them, the caster 1 is selected to have a necessary withstand load from the weight of the device 2 to be mounted, and the caster 1 is placed at the position of the mounting hole 4 of the mounting seat 3. At the same time, the frame 5 on the lower surface of the device is fixed by performing drilling or tapping. Further, the level adjuster 6 has a nut 8 to be screwed onto an adjuster bolt 7 for level adjustment, welded to the mounting seat 3, and tapped. In addition, depending on the size and shape of the frame 5 on the lower surface of the equipment, separate mounting seats may be welded.

[0004]

[Problems to be solved by the device]

 However, in this mounting process, a mounting structure must be designed for each device 2 to be mounted and the device frame 5 must be processed, which is complicated and inefficient. In particular, mounting the level adjuster 6 requires welding of the nut 8 and machining of the hole 9 for the level adjuster. In addition, since the clearance space for the adjuster bolt 7 must be provided in the device 2, In consideration of this point, we had no choice but to design the dimensions and shape.

For such a problem, there is a caster and a level adjuster which are integrally formed (for example, Japanese Utility Model Laid-Open No. 56-138701), but the structure is complicated and extremely expensive. turn into.

Therefore, in view of the above circumstances, the present invention was devised to provide a caster with a level adjuster which requires less processing of equipment to be attached and has a simple structure.

[0007]

[Means for Solving the Problems]

 According to the present invention, the adjuster bolts of the level adjuster are screwed and supported on the mounting base, on which the casters are supported, at appropriate intervals from the casters. The stepped seat is formed with a depth that does not exceed the upper surface.

It is preferable that the mounting base has a reinforcing portion on its periphery or the like. Further, the mounting base can be composed of a first steel plate having a stepped seat portion and a second steel plate joined to this and having a reinforcing portion.

Further, it is desirable that the mounting base has a plurality of elongated holes for appropriately mounting the mounting base to the bottom of a device or the like with mounting bolts.

[0010]

[Action]

 With the above configuration, the mounting base is attached to the device, etc., so that the support member of the caster is not housed inside the stepped seat and does not come into contact with the bottom surface of the device, etc. The upper end does not go over the top surface of the mounting base and enter the equipment.

Further, the structure having the reinforcing portion improves the rigidity and strength of a relatively thin mounting base. In the mounting base composed of the first and second steel plates, the stepped seat portion and the reinforcing portion are easily processed into a desired shape.

With the configuration having the elongated hole, the mounting bolt can be inserted according to the hole arbitrarily installed on the device side.

[0013]

【Example】

 Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 show a first embodiment of a caster with a level adjuster according to the present invention. This caster with a level adjuster comprises a caster 12 and a level adjuster 13 which are properly supported by the same mounting base 11, and the caster 12 and the level adjuster 13 perform rotation and turning operations or level adjustment. They are arranged at appropriate intervals so that they do not hinder the operation. Then, stepped seat portions 14 and 15 which characterize the present invention are formed at the supporting positions of the caster 12 and the level adjuster 13, respectively.

The caster 12 includes a wheel 17 that rolls on the floor 16, a mount 19 that rotatably holds the wheel 17 around a horizontal support shaft 18, and a mount 19 that rotates around a vertical main shaft (not shown). It is formed by a supporting plate 20 which is supported so as to be freely rotatable. The supporting plate 20 is fixed to the stepped seat portion 14 of the mounting base 11 by a supporting bolt 21 and a nut 22 which are supporting members. The level adjuster 13 is composed of a pad 23 that abuts on the floor 16 and an adjuster bolt 24 having a lower end attached to the pad 23. An upper portion of the adjuster bolt 24 is welded to a lower surface of the stepped seat portion 15. It is screwed to the hood 25.

The mounting base 11 is made of a relatively thin, substantially rectangular steel plate, and its four peripheral edges are bent to the side opposite to the flat mounting surface 26 to form reinforcing ribs 27 as reinforcing portions. . Then, the stepped seat portion 14 on the caster side is pressed to a size substantially equal to that of the support tray 20, and the depth d ₁ thereof is recessed so that the end portion of the support bolt 21 does not hang on the mounting surface 26. Further, the stepped seat portion 15 on the adjuster side has a truncated conical trapezoidal shape, and is pressed so that the bottom surface thereof has the same size as the nut 25. The depth d ₂ of the adjuster bolt 24 is adjusted so that the upper end 28 of the adjuster bolt 24 does not exceed the mounting upper surface 26, that is, the adjuster bolt 24 is lifted above the lower end of the wheel 17 of the caster 12 from the state where the pad 23 is grounded. The upper end 28 of the bolt 24 is formed with a depth d ₂ so as not to project inward of the device 29 to be attached.

Further, the mounting base 11 is provided with a large number of elongated holes 30 for attaching to the bottom surface of the device 29 by mounting bolts (not shown). In this embodiment, the direction of the short side is defined. In addition to the elongated holes 30 extending at appropriate intervals along the periphery of the mounting base 11, a total of 11 holes 30 are also provided between the casters 12 and the adjusters 13.

With this structure, the caster 12 is fixed to the stepped seat portions 14 and 15 of the mounting base 11 by the support bolt 21 and the nut 22, and the nut 25 of the adjuster bolt 24 is fixed by welding. As a result, the caster 12 and the adjuster 13 can be mounted only by mounting the mounting base 11 on an arbitrary bottom surface position of the device 29. Further, the upper end 28 of the support bolt 21 or the adjuster bolt 24 is always housed in the stepped seat portions 14 and 15, and it is not necessary to provide the equipment 29 with a space for escape thereof. That is, it suffices to make holes for mounting bolts at appropriate positions on the bottom surface of the device 29. For example, by providing at least three bolt holes 32 on the bottom surface of the frame 31, as shown in FIG. Can be installed. In other words, the design restrictions on the mounting structure on the device side are greatly reduced. Since the shape of the mounting base 11 does not need to be significantly changed for each device to be mounted, the design is greatly simplified and standardized, and the versatility and mass productivity are extremely high.

Further, in the present embodiment, since the mounting base 11 is provided with the reinforcing ribs 27, the supporting strength is secured even when using a thin steel plate which is easier to process than the conventionally used thick plate. can do. This deals with the fact that the four corners of the device 29 are often composed of L-shaped frames 31 and the mounting base 11 can be mounted only in three places in many cases. It exhibits sufficient rigidity and strength without bending.

Since the hole for passing the mounting bolt is the elongated hole 30, it is possible to select a hole on the bottom surface of the frame 31 that can be easily machined. The greater the number of the long holes 30, the higher the versatility, but it is sufficient if the long holes 30 are arranged at three positions including the corners of the lowest mounting base 11. Good.

Next, a second embodiment of the present invention will be described with reference to FIGS. 4 and 5. In this embodiment, a mounting base 43 supporting the casters 41 and the adjuster 42 has a first steel plate 46 having stepped seats 44 and 45, and a reinforcing rib 47 joined thereto by spot welding or the like. It is composed of the second steel plate 48.

The first steel plate 46 is appropriately bent so that the stepped seat portions 44, 45 are divided so as to extend parallel to the short sides, and the predetermined width d is determined by the bending width.₁, D ₂ Is secured. Further, the second steel plate 48 has only the long side edges bent to form the reinforcing ribs 47, and the portion corresponding to the caster side stepped seat portion 44 of the first steel plate 46 is the fastening work of the support bolt 21. It is opened as a hole 49 for easy access. Then, on the flat mounting surface 50 between the short sides of the steel plates 46 and 48 and between the caster 41 and the level adjuster 42, a long hole 51 extending parallel to the short sides is formed by standard punching. The steel plates 46 and 48 may be joined by spot welding or by folding back. In addition, as in the first embodiment, the caster 41 is composed of the wheel 17, the mount 52 and the support plate 53, and the level adjuster 42 is composed of the pad 54 and the adjuster bolt 24.

With this configuration, the mounting base 43 does not require an expensive mold for press working as in the first embodiment, and can be easily combined with one-way bender processing. It can be manufactured, and especially when the quantity is small, the manufacturing cost can be reduced. Other functions and effects are similar to those of the first embodiment.

Although the integrally formed reinforcing ribs 27 and 47 are shown as the reinforcing portions in the above embodiments, separate reinforcing members may be appropriately added to the flat steel plate surface.

[0025]

[Effect of device]

 In short, according to the present invention, the following excellent effects are exhibited.

(1) According to the configuration of claim 1, the processing of the device to be mounted is reduced, the degree of freedom in design is improved, and a simple structure is realized, so that the efficiency of the mounting process is improved and the manufacturing cost is improved. Is achieved.

(2) According to the configuration of claim 2, it is possible to further secure the rigidity and strength required for the mounting base.

(3) According to the structure of claim 3, the mounting base can be further easily processed, and the cost can be further reduced.

(4) According to the configuration of claim 4, the restriction on the position of the mounting hole in the device to be mounted is further reduced, and the efficiency is further improved.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a first embodiment of a caster with a level adjuster according to the present invention.

FIG. 2 is a bottom view of FIG.

FIG. 3 is a plan view showing a state in which the casters with level adjusters of FIG. 1 are attached to a device.

FIG. 4 is a side sectional view showing a second embodiment of the present invention.

5 is a bottom view of FIG. 4. FIG.

FIG. 6 is a side view showing a state in which a level adjuster and casters are attached for explaining a conventional technique.

FIG. 7 is a plan view of FIG.

[Explanation of symbols]

11,43 Mounting base 12,41 Caster 13,42 Level adjuster 14,15,44,45 Stepped seat portion 21 Support bolt (supporting member) 24,42 Adjuster bolt 26,50 Mounting upper surface 27,47 Reinforcing rib (reinforcing portion) ) 28 upper end of adjuster bolt 30,51 elongated hole 46 first steel plate 48 second steel plate d ₁ , d ₂ depth of stepped seat portion

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Masami Suzuki 3-1-1 Sukegawa-cho, Hitachi-shi, Ibaraki Hitachi Rubber Processing Co., Ltd.

Claims (4)

[Scope of utility model registration request] 1. An adjuster bolt of a level adjuster is screwed and supported on a mounting base, on which a caster is supported, at an appropriate distance from the caster, and the support member of the caster and the upper ends of the adjuster bolts are mounted on the mounting positions at these supporting positions. A caster with a level adjuster, characterized in that a stepped seat portion is formed with a depth that does not exceed the upper mounting surface of the base. 2. The caster with a level adjuster according to claim 1, wherein the mounting base has a reinforcing portion on its peripheral edge or the like. 3. The caster with a level adjuster according to claim 2, wherein the mounting base comprises a first steel plate having the stepped seat portion and a second steel plate joined to the steel plate and having the reinforcing portion. . 4. The caster with a level adjuster according to claim 1, wherein the mounting base has a plurality of elongated holes for appropriately mounting to a bottom portion of a device or the like with a mounting bolt.