JPH04366015A - Stopper of linear motion rolling guide unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention provides the following features:
In order to prevent the slide unit from sliding off the track rail during transportation, packaging, or unpacking and mounting on the machine base, in a linear rolling guide unit in which the slide unit is slidably mounted, Regarding a stopper attached to a track rail.

0002

[Prior Art] This type of stopper has already been disclosed in Japanese Utility Model Publication No. 1984-8432 or Japanese Patent Application Laid-Open No. 2-30051.
The one shown in Publication No. 7 is known.

In the stopper shown in Japanese Utility Model Publication No. 62-8432, a locking groove must be cut on the top surface of the track rail only for fitting the positioning protrusion on the bottom surface of the stopper, and the stopper lacks versatility. However, since the stopper is used, there are disadvantages such as an increase in the number of track rail manufacturing steps.

[0004] In the stopper disclosed in Japanese Patent Application Laid-Open No. 2-300517, the top surface of the track rail is strongly pressed by the tip of the screwed bolt, which not only damages the top surface of the track rail, but also requires time and effort to attach and remove the stopper. It also has this problem.

[0005]

[Problems to be Solved by the Invention] The present invention has a reliable stopping action of the slide unit of the linear motion rolling guide unit, and is versatile because it does not require special processing on the track rail, and can be performed in one operation. The object of the present invention is to provide a stopper for a linear motion rolling guide unit that allows the stopper to be installed and removed.

[0006]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a stopper which is made of an elastic material and has a substantially M-shaped front shape, and has a convex arc shape extending inward at the lower end of both legs of the stopper. A raceway groove fitting part is formed on the lower surface of the bottom of the V-shaped concave part at the top of the stopper, and a track groove fitting part is formed on the lower surface of the bottom of the V-shaped recessed part at the top of the stopper. A locking part is formed that protrudes to the
The distance in the height direction between the lower surface of the bottom of the V-shaped recess and the upper surface of the raceway groove fitting part when standing still when not in operation is the distance in the height direction between the top surface of the track rail and the ceiling surface of the raceway groove. It has a configuration that is said to be smaller.

[0007]

[Operation] When the stopper is placed over the track rail and the track groove fitting part at the lower end of the leg is pushed into the track rail track groove and fitted, the locking part on the bottom surface of the V-shaped concave part of the stopper It is brought into elastic contact with the top surface of the track rail.

[0008] Since insertion holes for fixing bolts to the bed are normally provided at positions near both ends of the track rail,
As described above, a locking part that slides the stopper fitted to the track rail toward the end is inserted into the insertion hole,
The stopper is locked to the track rail by being inscribed inside the opening edge of the insertion hole near the end of the track rail, and by bringing the lower surface of the bottom outside the locking portion into elastic contact with the top surface of the track rail at the periphery of the insertion hole.

When the slide unit that straddles the track rail slides and collides with the stopper in the above-mentioned locked state, the raceway groove and the track groove fit against the rotational moment that causes the stopper to fall off the track rail. In addition to the engagement force with the mating part, there is also the force of the lower surface of the bottom of the V-shaped recess pressing against the top surface of the track rail, and the force of the side surface of the locking part protruding downward from the lower surface of the bottom and the insertion hole of the track rail. The prying action of the edge counteracts and prevents the stopper from falling over.
Demonstrates good stopping function.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS The figure shows an example of implementation, and a stopper 1 made of an elastic material such as a metal plate or a synthetic resin plate has a substantially M-shaped front shape as shown in FIG.

At the lower ends of the leg portions 2 and 3 on both sides of the stopper 1, raceway groove fitting portions 4 and 5 are formed in the shape of convex arcs facing inward.

A V-shaped recess 6 is formed at the top of the stopper 1, and a gap s shorter than the length L of the bottom 7 in the longitudinal direction of the track rail 8 is formed in the approximately central region of the bottom 7.
The slits 9 and 10 are cut in the slits 9 and 10.
A locking portion 12 protruding downward from the lower surface 11 of the bottom portion 7 is formed by a material between 10 and 10 mm.

The lower surface 11 of the bottom 7 of the V-shaped recess 6 when the track rail 8 is not fitted and is inactive and standing still.
The distance h in the height direction between the upper surfaces 13 and 14 of the raceway groove fitting parts 4 and 5 is the distance h between the top surface 15 of the track rail 8 and the upper surfaces 13 and 14 of the raceway groove 16.
, 17 and the ceiling surfaces 18, 19 in the height direction.

Although the opening angle of the V-shaped concave portion 6 of the stopper 1 in the illustrated example is 90 degrees, it is not limited to this angle.

At positions near both ends of the top surface 15 of the track rail 8, insertion holes 20 for fixing bolts for fixing the track rail 8 to the bed are generally provided.

The stopper 1 according to the present invention is made to straddle the track rail 8 from above at or near the penetration position of the insertion hole 20, and is pressed downward to connect the track groove fitting portions 4 and 5 to the track rail. 8 into the raceway grooves 16 and 17.

Since the stopper 1 is made of an elastic material, the raceway groove fitting portions 4 and 5 can fit into the raceway grooves 16 and 17.
The fitting is easily performed by elastic bending of the stopper 1, and either the lower surface 11 of the bottom 7 of the V-shaped recess 6 or the locking portion 12 comes into elastic contact with the top surface 15 of the track rail 8.

That is, if the fitting position of the stopper 1 is out of the position of the insertion hole 20, the lower surface of the locking part 12 will be aligned with the top surface 1.
5, and if the bottom part 7 is fitted from a position directly above the insertion hole 20, either the bottom part 7 itself will enter into the insertion hole 20, or the locking part 12 will enter into the insertion hole 20 and become locked. Part 12
The lower surfaces 11 of the bottom portion 7 on both sides of the bottom portion 7 come into elastic contact with the top surface 15 .

After fitting the stopper 1 to the track rail 8 as described above, the stopper 1 is slid slightly toward the end of the track rail 8 to bring the locking part 11 into contact with the inside edge of the insertion hole 20. The lower surface 11 of the bottom 7 on the side that is in contact with the top surface 15
The mounting of the stopper 1 is completed by bringing it into contact with the stopper 1.

To remove the stopper 1, remove one leg 2.
Alternatively, it can be removed in one motion by pinching 3 and pulling upwards while turning it over.

[0021]

[Effects of the Invention] The present invention has the structure and operation described above, and only utilizes the raceway grooves on both sides that the track rail necessarily has and the insertion holes for fixing bolts to the bed. The stopper can be reliably locked with the stopper, there is no need to perform any processing on the track rail, and the track rail will not be damaged when it is installed or removed, which has the effect of expanding the versatility of the stopper.

The stopper has a structure in which a raceway groove fitting part is formed at the leg end to fit into a convex arc-shaped raceway groove facing inward, and a V-shaped recess is formed at the top and a locking part protrudes from the bottom surface of the concave part. This has the advantage of having a simple structure and being able to be provided at low cost.

The locking force of the stopper to the track rail is due to the clamping force of the track groove fitting portion based on the elasticity of the material, and the fact that the lower surface of the bottom of the V-shaped recess is the opening edge of the fixing bolt insertion hole of the track rail. The locking part that is in elastic contact with the top surface of the rail and adjacent to the lower surface of the bottom is exerted in combination with the prying action that counters the rotational moment caused by contacting the inner side of the opening edge of the insertion hole. Despite its structure, it has the effect of exerting a strong locking force.

The elasticity of the stopper can be adjusted to be strong or weak by selecting the distance in the height direction between the lower surface of the bottom of the V-shaped recess and the upper surface of the raceway groove fitting part, and Another advantage is that it is possible to manufacture a stopper that can be applied to different types of track rails simply by changing the depth of the recess.

[0025] The attachment and detachment of the stopper is completed by placing it on the track rail, pressing it, and sliding it slightly, and holding the leg end and pushing it up, each of which are similar to one operation. Therefore, it also has the effect of significantly simplifying the loading/unloading operation.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of an embodiment in a mounted state.

FIG. 2 is a plan view of the stopper shown in FIG. 1;

3 is a front view of the stopper shown in FIG. 2. FIG.

[Explanation of symbols]

1 Stopper 2,3 Legs 4, 5 Raceway groove fitting part 6 V-shaped recess 7 Bottom 8 Track rail 11 Bottom surface 12 Locking part 13, 14 Top surface 15 Top surface 16,17 Raceway groove 18, 19 Ceiling surface

Claims (1)

[Claims] Claim 1: A stopper made of an elastic material and having a substantially M-shaped front shape has inwardly convex arc-shaped raceway groove fitting portions formed at the lower ends of both legs, and the top portion of the stopper. On the lower surface of the bottom of the V-shaped recessed part, a locking part is formed approximately in the center area and projects downward over a range shorter than the length of the bottom in the track rail length direction. When standing still, the distance in the height direction between the lower surface of the bottom of the V-shaped recess and the upper surface of the raceway groove fitting portion is smaller than the distance in the height direction between the top surface of the track rail and the ceiling surface of the raceway groove. Stopper for linear motion rolling guide unit.