JP2004019767A - Sliding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding device capable of decreasing the number of working processes and parts in manufacture, facilitated in manufacture and capable of preventing a sliding body from slipping off a shaft at a low cost even if being a small sliding device, and superior in practicalness. <P>SOLUTION: This sliding device is composed of a shaft and a slider provided on the shaft. The slider is provided with a sleeve at the base, and a rolling element held in a rolling element retainer is provided between the shaft and the slider. The rolling element retainer is slidable to the slider and the shaft. Both end parts in the sliding direction of the rolling element retainer and its vicinity are provided with locking parts locked on locking parts of the shaft or the slider. The rolling element retainer is provided with a window, and both inner edges in the sliding direction of the window and the locking projected part provided on the slider or the shaft are locked with each other. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sliding device.
[0002]
Problems to be solved by the prior art and the invention
As shown in FIGS. 4 to 6, for example, a conventional sliding device includes a shaft 21 and a sliding body 22 fitted on the shaft 21. The sliding body 22 has sleeves 28 on the left and right sides of a base 27. A rolling element 23 held by a rolling element holder 24 is provided between both side surfaces of the shaft 21 and the inner surface of the sleeve 28 of the sliding member 22. The moving body holder 24 has a U-shaped cross section including a base plate 24a attached to the base 27 of the sliding body 22 and left and right hanging parts 24b attached to left and right sleeves 28 of the sliding body 22. The rolling element holder 24 is configured to be slidable with respect to the sliding body 22 and the shaft 21 (hereinafter, simply referred to as “conventional device”).
[0003]
This conventional device is used for attaching an appropriate member to the sliding body 22 and sliding the appropriate member.
[0004]
By the way, in order to prevent the sliding body 22 from dropping off the shaft 21, this conventional device prevents excessive movement of the rolling element holder 24 on both end faces in the sliding direction between the sliding body 22 and the shaft 21. A stopper side plate 25 for preventing the sliding body 22 from dropping off the shaft 21 is fixed by a set screw 26.
[0005]
Therefore, in the conventional device, since the stopper side plate 25 is provided, it is necessary to perform tap processing on both end surfaces of the sliding body 22 and the shaft 21, which is troublesome.
[0006]
In particular, when a small-sized sliding device is manufactured, the set screw 26 to be used is also small, and thus the tapping described above is small in diameter, very troublesome and troublesome, resulting in an increase in cost.
[0007]
The present invention solves the above-described problems, and can reduce the number of processing steps and the number of parts in manufacturing, making the manufacture of a sliding device extremely easy, and reducing the cost of the sliding device even with a small sliding device. An object of the present invention is to provide a very practical sliding device that can prevent a moving body from falling off a shaft.
[0008]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0009]
It comprises a shaft 1 and a sliding member 2 provided on the shaft 1. The sliding member 2 has a structure in which a sleeve portion 6 is provided on a base portion 5, and a rolling member is provided between the shaft 1 and the sliding member 2. A rolling element 3 held by a moving element holder 4 is provided. The rolling element holder 4 is a sliding device configured to be slidable with respect to the sliding element 2 and the shaft 1. At both ends in the sliding direction of 4 or in the vicinity thereof, there are provided a locking portion 7 provided on the shaft 1 or the sliding body 2 and a locking receiving portion 8 which can be locked respectively. 4, a window 9 is provided, and both inner edges of the window 9 in the sliding direction are engaged with locking projections 10 provided on the sliding body 2 or the shaft 1. The present invention relates to a sliding device characterized by the following.
[0010]
The sliding device according to claim 1, wherein locking portions 7 are provided at both ends of the shaft 1, and locking projections 10 are provided on the sliding body 2. And a sliding device.
[0011]
Further, in the sliding device according to claims 1 and 2, the sliding body 2 has a sleeve portion 6 vertically provided on the left and right sides of a base portion 5, and the rolling element retainer 4 includes a substrate portion 4a. The rolling element holder 4 is disposed between the shaft 1 and the inner surface of the slide 2, and furthermore, a substrate part of the rolling element holder 4 is provided. The sliding device is characterized in that 4a is attached to the base 5 of the sliding body 2 and right and left hanging parts 4b of the rolling element holder 4 are attached to the left and right sleeves 6 of the sliding body 2. It is.
[0012]
Further, in the sliding device according to the third aspect, the rolling element 3 comes into contact with a load groove 11 formed on both side surfaces of the shaft 1 and a load groove 12 formed on an inner surface of the sleeve 6 of the slide body 2. The present invention relates to a sliding device characterized by being configured to roll.
[0013]
In the sliding device according to any one of claims 1 to 4, a small hole 4 'is juxtaposed in a hanging portion 4b of the rolling element holder 4, and the rolling element 3 is provided in the small hole 4'. Are provided so as to be able to roll, and are related to a sliding device.
[0014]
The sliding device according to any one of claims 1 to 5, wherein the window (9) of the rolling element holder (4) is provided on the substrate (4a) of the rolling element holder (4). It concerns the device.
[0015]
In the sliding device according to any one of claims 1 to 6, the locking receiving portion 8 of the rolling element retainer 4 has a cutout formed at an edge of the substrate portion 4a of the rolling element retainer 4. The present invention relates to a sliding device characterized by a notched concave portion.
[0016]
The rolling device according to any one of claims 1 to 7, wherein the rolling elements 3 are steel balls.
[0017]
Function and effect of the present invention
The sliding body 2 is slid with respect to the shaft 1 via the rolling elements 3. At this time, the rolling element holder 4 holding the rolling element 3 also slides.
[0018]
The sliding movement of the rolling element holder 4 and the sliding body 2 is performed, for example, when the locking portions 7 are provided at both ends of the shaft 1 and the locking projections 10 are provided on the sliding body 2. The locking action between the locking receiving portions 8 provided at both ends of the retainer 4 in the sliding direction and the locking portions 7 provided at both ends of the shaft 1, respectively. Both the inner edges of the provided window 9 in the sliding direction and the locking action of the locking projections 10 provided on the sliding body 2 are restricted by the locking action, so that the sliding body 2 does not fall off the shaft 1.
[0019]
As described above, the locking of the shaft 1 or the sliding body 2, the locking projection 10 of the shaft 1 or the sliding body 2, and the locking of the rolling element holder 4 are performed as described above. This is achieved by the receiving portion 8 and the inner edge of the window 9, and the stopper side plate is not attached to both end surfaces of the sliding body and the shaft by set screws as in the conventional device. Can be eliminated.
[0020]
In addition, the present invention can prevent the sliding body from falling off simply by performing a predetermined process on the rolling element holder, which is an essential part of the sliding device, so that a separate stopper plate component is not required as in the conventional device. Therefore, the number of processing steps and the number of parts in manufacturing can be reduced as compared with the conventional apparatus.
[0021]
Further, according to the present invention, since the stopper side plates attached to both ends are not required, the sliding stroke of the sliding body can be set to be longer by the thickness of the stopper side plates.
[0022]
As described above, according to the present invention, the sliding device can be manufactured very easily, and even if the sliding device is small, the sliding member can be prevented from falling off at low cost. It is possible to provide a very practical sliding device capable of setting a longer stroke.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 3 illustrate one embodiment of the present invention, which will be described below.
[0024]
This embodiment comprises a shaft 1 and a sliding member 2 provided on the shaft 1. The sliding member 2 has a structure in which a sleeve portion 6 is provided on a base portion 5; A rolling element 3 held by a rolling element holder 4 is provided between the rolling elements 3. The rolling element holder 4 is a sliding device configured to be slidable with respect to the sliding body 2 and the shaft 1. At or near both ends of the rolling element holder 4 in the sliding direction, there are provided locking receiving portions 8 which can be locked with the locking portions 7 provided on the shaft 1 or the sliding body 2, respectively. The rolling element retainer 4 is provided with a window 9 so that both inner edges of the window 9 in the sliding direction and the locking projections 10 provided on the sliding body 2 or the shaft 1 are locked. It is configured.
[0025]
Explaining each part in detail, the shaft 1 has a substantially rectangular shape in cross section, and a load groove 11 is formed on each of left and right side surfaces of the shaft 1 one by one.
[0026]
The shaft 1 is provided with a fixing hole 13 for fixing a mounting base or the like.
[0027]
In addition, a locking hole 15 is formed at a position provided in parallel with the fixing hole 13 at both ends of the shaft 1 in the sliding direction, and a locking screw 14 is provided in the locking hole 15. It is screwed.
[0028]
The head of the set screw 14 protrudes from the locking hole 15, and the head of the protruded set screw 14 is set to the locking portion 7.
[0029]
The sliding body 2 has a U-shape in cross section in which sleeves 6 are vertically provided on the left and right sides of the base 5. The load grooves 12 are formed one by one at opposing positions.
[0030]
Further, the upper surface of the base 5 of the sliding body 2 is formed as a flat surface for stably mounting a member to be slid such as a jig or a tool, and an attachment for mounting the member to be slid on the flat surface. A hole 16 is drilled.
[0031]
A locking hole 17 is formed in the center of the sliding body 2 at a position parallel to the mounting hole 16, and a set screw 14 is screwed into the locking hole 17.
[0032]
The tail of the set screw 14 protrudes from the locking hole 17, and the tail of the protruded set screw 14 is set to the locking projection 10.
[0033]
In this embodiment, the locking portion 7 is provided on the shaft 1 and the locking projection 10 is provided on the sliding member 2. On the contrary, the locking portion 7 is provided on the sliding member 2 and the locking projection is provided. 10 may be provided on the shaft 1.
[0034]
The rolling element retainer 4 has a U-shape in cross section, in which hanging portions 4b are suspended on the left and right sides of the substrate portion 4a. The rolling element retainer 4 is provided between the shaft 1 and the inner surface of the sliding body 2. More specifically, the base 4a of the rolling element holder 4 is attached to the base 5 of the sliding element 2, and the right and left hanging parts 4b of the rolling element holder 4 are attached to the left and right sides of the sliding element 2. Is set so as to be attached to the sleeve portion 6.
[0035]
In addition, a number of small holes 4 'are formed in the left and right hanging portions 4b of the rolling element holder 4 in parallel with the sliding direction, and steel balls can be rolled into the small holes 4' as rolling elements 3. It is arranged in a state.
[0036]
The rolling element 3 rolls by contacting the load with the load groove 11 and the load groove 12, respectively.
[0037]
Further, semicircular notches formed so as to accommodate the heads of the setscrews 14 are provided at both end edges of the substrate portion 4a of the rolling element retainer 4, and the notches are formed in the engagement receiving portions 8. Is set to
[0038]
It is to be noted that the lock receiving portion 8 may be a straight edge without being notched, instead of being set as a notched concave portion.
[0039]
A window 9 extending in the sliding direction is formed at the center of the substrate portion 4a of the rolling element holder 4.
[0040]
Since the present embodiment is configured as described above, for example, when the sliding body 2 is slid to the right with respect to the shaft 1 via the rolling body 3, the rolling body holder 4 holding the rolling body 3 Also slide to the right.
[0041]
As shown in FIG. 1, the sliding movement of the rolling element holder 4 and the sliding body 2 in the right direction is performed by a locking receiving portion 8 provided on the right edge of the rolling element holder 4 and the right side of the shaft 1. The locking action with the locking portion 7 provided at the end, and the engagement between the right inner edge of the window 9 provided in the rolling element holder 4 and the locking convex portion 10 provided in the sliding body 2. By both the stopping action, the right end of the shaft 1 is blocked at a predetermined position, so that the slide 2 does not fall off the shaft 1.
[0042]
The sliding movement of the sliding body 2 according to the present embodiment is because the rolling element 3 rolls by contact with the shaft 1 and the load grooves 11 and 12 formed in the left and right sleeves 6 of the sliding body 2. It can be performed stably and smoothly without rattling.
[0043]
In addition, since the locking portion 7 and the locking projection 10 of the present embodiment are formed of the set screws 14, fine adjustment after mounting once is extremely simple.
[0044]
Further, as described above, the sliding member 2 of the present embodiment is prevented from falling off by the locking portion 7 of the shaft 1, the locking projection 10 of the sliding member 2, the locking receiving portion 8 of the rolling element holder 4, and This is achieved by the inner edge of the window 9 and the stopper side plate is not attached to both end surfaces of the sliding body and the shaft by set screws as in the conventional device. Therefore, troublesome tapping of both the end surfaces of the sliding body and the shaft can be eliminated. .
[0045]
In this embodiment, since the sliding body can be prevented from falling off only by performing a predetermined process on the rolling element holder, which is an essential part of the sliding device, a separate stopper plate component is prepared as in the conventional device. Therefore, the number of processing steps and the number of parts in manufacturing can be reduced as compared with the conventional apparatus.
[0046]
In this embodiment, since the stopper side plates attached to both ends are not required, the sliding stroke of the sliding body can be set longer by the thickness of the stopper side plates.
[0047]
Further, in this embodiment, since the locking receiving portion is formed as a semicircular notched concave portion, the position where the locking receiving portion and the locking portion are locked is closer to the end of the shaft, and the sliding body slides. The possible range can be set wider than the case where the locking receiving portion is set to a straight edge.
[0048]
As described above, according to the present embodiment, the sliding device can be manufactured very easily, and even if the sliding device is small, the sliding member can be prevented from falling off at low cost. It is possible to provide a very practical sliding device capable of setting a long dynamic stroke.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view of the present embodiment.
FIG. 2 is an exploded perspective view of the embodiment.
FIG. 3 is an explanatory sectional view of the present embodiment.
FIG. 4 is an explanatory perspective view of a conventional example.
FIG. 5 is an explanatory sectional view of a conventional example.
FIG. 6 is an explanatory back view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shaft 2 Sliding body 3 Rolling body 4 Rolling body holder 4a Substrate part 4b Hanging part 5 Base 6 Sleeve part 7 Locking part 8 Lock receiving part 9 Window 10 Locking convex part 11 Shaft side load groove 12 Sliding body sleeve Side load groove

Claims (8)

The shaft comprises a shaft and a sliding member provided on the shaft. The sliding member has a base provided with a sleeve, and a rolling member held by a rolling element holder is provided between the shaft and the sliding member. A rolling element is provided, and the rolling element holder is a sliding device configured to be slidable with respect to the sliding element and the shaft. A locking portion provided on a shaft or the sliding body and a locking receiving portion capable of locking each are provided.Further, a window is provided on the rolling element retainer. A sliding device configured to be locked by a locking projection provided on a sliding body or a shaft. 2. The sliding device according to claim 1, wherein locking portions are provided at both ends of the shaft, and locking projections are provided on the sliding body. The sliding device according to claim 1, wherein the sliding body has sleeve portions hanging right and left of a base portion, and the rolling element retainer has hanging portions hanging right and left of a substrate portion. The rolling element retainer is disposed between the shaft and the inner surface of the sliding element, and the substrate of the rolling element retaining element is mounted on the base of the sliding element. A sliding device, wherein left and right hanging parts of a container are attached to left and right sleeves of a sliding body. 4. The sliding device according to claim 3, wherein the rolling element is configured to roll in contact with a load groove formed on both side surfaces of the shaft and a load groove formed on an inner surface of a sleeve of the slide body. A sliding device. The sliding device according to any one of claims 1 to 4, wherein small holes are juxtaposed in a hanging portion of the rolling element retainer, and the rolling elements are disposed in the small holes in a rotatable state. A sliding device characterized by being performed. The sliding device according to any one of claims 1 to 5, wherein a window of the rolling element holder is provided in a substrate portion of the rolling element holder. The sliding device according to any one of claims 1 to 6, wherein the locking receiving portion of the rolling element retainer is a notch recess formed at an edge of a substrate portion of the rolling element retainer. Features sliding device. The sliding device according to claim 1, wherein the rolling element is a steel ball.

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