JPH0527728Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a guide bar fixing device for fixing two guide bars with a plate spring.

[Conventional technology]

A conveying device equipped with a guide bar fixing device will be explained based on FIGS. 6 and 7. 6th
The figure is a side view of the conveyance device, and FIG. 7 is a top view of the conveyance device. 6 and 7 are the same members.

In FIG. 6, side surfaces 11a, 1
Wheels 13a, 13b, and 13c are pivotally supported on 1b, and each of the wheels 13a to 13c is placed on a linear guide bar 12a, 12b. These guide bars 12a, 12b are formed in an elongated cylindrical shape extending in a direction perpendicular to the paper surface. Wheels 13 are provided on the back surface 11c of the conveyance table 11.
d, 13e, and 13f are pivotally supported, and the respective wheels 13d, 13e, and 13f are in contact with linear guide bars 12a and 12b along the lateral direction in the figure. A bearing member 15 is fixed to the back surface of the conveyor table 11 between the wheels 13d and 13e. This bearing member 15 includes linear guide bars 12a, 1
It is screwed into a male screw member 14 extending along the axial direction of 2b.

In FIG. 7, cylindrical parts 14a and 14b fixed at both ends of the male threaded member 14 are rotatably fitted into the flat plate 16, and the end face 17 of the frame 17
The flat plate 16 is arranged so that the circumferential surfaces of both ends of the male threaded member 14 are disposed with a gap between the U-shaped notches 18 (see FIG. 6) provided in the a and 17b.
is the U-shaped notch 18 of the end surfaces 17a, 17b.
is fixed around the area.

Next, the fixing device for the linear guide bar will be explained. End surfaces 17a, 17 of the frame 17 in FIG.
As shown in FIG. 6, a concave groove 19 is provided in b, and both ends of the linear guide bars 12a and 12b shown in FIG. 7 are loosely fitted into this concave groove 19. In FIG. 6, the leaf spring 20 is bent at an angle of 90 degrees or less, and one portion 20a of the leaf spring 20 is fixed to the end surfaces 17a, 17 of the frame 17 by a fixing pin 21.
b, and the other portion 20b of the leaf spring 20 presses the linear guide bars 12a, 12b toward one side wall 19a of the concave groove 19.
Due to the stiffness, the linear guide bars 12a and 12b are firmly attached to one side wall 19a and bottom surface 19b of the concave groove 19.

With the above configuration, when the male threaded member 14 is rotated, it passes through the bearing member 15 to the conveyor table 1.
1 is moved between both end surfaces 17a, 17b of the frame body 17 along the axial direction of the linear guide bars 12a, 12b by wheels 13a to 13f.

[Problem that the invention attempts to solve]

In the above-mentioned guide bar fixing device, the portion 2 of the leaf spring 20 fixed by the fixing pin 21 is
0a extends horizontally and is connected to the end surface 1 of the frame 17.
7a, 17b are provided with a portion 20a of a leaf spring 20.
This requires a larger space for fixing the frame 17, which results in a larger width A of the frame 17 and a larger base area, which in turn requires a larger space for arranging the frame 17.

In order to solve this drawback, the distance between each side wall of the concave groove 19 in FIG.
The groove 1 is made equal to the diameter of the grooves a and 12b.
9 is made smaller and the width A of the frame body 17 is reduced accordingly, the bottom area of the frame body 17 becomes smaller. When charging, the following problems occur. When an external force, for example a force from the wheels, is applied to the guide bars 12a, 12b, an exchange of force occurs between one end of the guide bars 12a, 12b and each side wall of the groove, and if this exchange occurs many times, the guide bar 12a,
12b has poor durability.

Therefore, the present invention solves the above problems and provides two
When fixing each guide bar of a book, each leaf spring used for each one of the two guide bars at the end face of the frame body also fixes its width. It is an object of the present invention to provide a guide bar fixing device which allows the guide bar to be contracted without being expanded, and which maintains the durability of the guide bar.

[Means for solving problems]

In order to achieve the above object, the present invention comprises: first and second guide bars formed in a straight line; two end faces facing each other with an interval;
and four concave grooves provided for each of the first and second guide bars on each of the two end faces, in order to loosely fit both ends of the second guide bar. Then, a base, and a plurality of leaf springs provided in each of the four concave grooves, the leaf spring is bent in each of the four concave grooves, and one of the leaf springs is bent. A portion of the plate spring is fixed to one side wall of the concave groove, and the restoring force of the spring causes the other portion of the leaf spring to press the guide bar against the other side wall of the concave groove.

[Effect]

When both ends of the first and second guide bars are loosely fitted into the concave groove, a space is created between the guide bar and a side wall of the concave groove due to the loose fit, and the leaf spring is disposed in this space. By fixing one end of the leaf spring to one side wall of the recessed groove, the leaf spring is not fixed to the upper part of the end face of the base (frame body) as in the conventional method. The width of the base (frame) can be reduced. Therefore, the space for arranging the base can also be made smaller than in the prior art by using each leaf spring for each of the guide bars. Moreover, even if an external force is applied to the guide bar, the plate spring absorbs the external force via the guide bar, so that the durability of the guide bar can be maintained.

〔Example〕

A first embodiment of the present invention will be described based on FIG. FIG. 1 is a perspective view showing a state in which a guide bar fixing device is provided on one end surface 1a of the frame 1. As shown in FIG. Since the conveyor table and wheels in this embodiment are used in the same manner as in the prior art, FIG. 1 is omitted. Components in FIG. 1 having the same reference numerals as those in FIG. 6 and FIG. 7 are the same members.

FIG. 1 also shows the left and right concave grooves 2 and each member 3, 12a, 1 on one end surface 1a of the frame 1.
2b is disclosed, but since it is also provided on the other end surface of the frame 1 in the same manner as in FIG. 1, a description of its configuration will be omitted.

In FIG. 1, the end surface 1a of the frame 1 is used as the end surface of the base, and the end surface 1a of the frame 1 is used as the end surface of the base, and the first and second guide bars 12a, 12b are loosely fitted into the end surface 1a.
The height of one side wall 2a of the concave groove 2 of a is smaller than the diameter of the linear guide bars 12a and 12b,
Further, the height of the other one side wall 2b is the same as that of the guide bar 1.
The diameter is larger than that of 2a and 12b. The other side wall 2b and the guide bar 12
A leaf spring 3 bent at an angle of 90 degrees or more is located between the parts 3a and 12b, and one part 3a of the leaf spring 3
is fixed to the above-mentioned one side wall 2b by a fixing pin 4. The other portion 3b of the leaf spring 3 presses one end of the guide bars 12a, 12b toward the one side wall 2a of the concave groove 2 due to the restoring force of the leaf spring 3.

FIGS. 2 and 3 show the state when each part of the leaf springs 5 and 6, which are provided in different shapes, is fixed to the top 1b of the end surface 1a of the frame 1 by the fixing pin 4. They are a second example and a third example shown. By fixing the leaf springs 5, 6, the leaf springs 5, 6 are placed in contact with one side wall 2b of the recessed groove 2.
part is fixed. The tips of the leaf springs 5, 6 that come into contact with the guide bar 2 and the fixed portions of the leaf springs 5, 6 that are fixed by the fixing pin 4 are the side wall 2b.
Since the plate springs 5, 6 are separated from each other through the portions of the plate springs 5, 6 that contact the plate springs 5, 6, the fixing force of the plate springs 5, 6 by the fixing pin 4 can be small. For this reason, the space between the top portion 1b of the end surface 1a and the portions of the leaf springs 5 and 6 in contact therewith may be reduced, and thereby the width of the end surface 1a can be reduced.

Further, in the third embodiment (see FIG. 3), the two linear guide bars 12a and 12b can be fixed by one leaf spring 6, so that costs can be reduced.

FIGS. 4 and 5 show a fourth embodiment in which concave grooves 7, 8, and 9 are provided in different shapes, respectively,
This is a fifth example. Both corners 7a and 7b of the concave grooves 7 located on the left and right sides in FIG.
One side wall 7c to which is fixed is, with respect to the bottom surface 7d,
It is formed at an angle greater than 90 degrees.
In the other concave groove 8, a side wall 8a to which one end 3a of the leaf spring 3 is fixed is formed at a position inclined by more than 90 degrees with respect to the bottom surface 8b, similarly to the side wall 7c. Both side walls 9a and 9b of the concave groove 9 shown in FIG. 5 are formed at positions inclined by more than 90 degrees with respect to the bottom surface 9c.

Because the above-mentioned side walls are formed in an inclined state,
The fixing of the leaf spring 3 by the fixing pin 4 is the same as the above-mentioned first
This is simpler than the embodiment (see FIG. 1). Also,
If the aforementioned side walls 7a to 9a are formed in an inclined state while maintaining the same width as the width of the end surface 1a in FIG. Since it is not fixed to the upper part of 1a, it does not interfere with the purpose of the present invention.

According to the above embodiment, since each end of the leaf springs 3, 5, and 6 is bent by 90 degrees or more, the restoring force is large, and the force for fixing the linear guide bars 12a, 12b is also large. ,12
An advantage is obtained that b does not come off from the end surface 1a of the frame 1 due to the above-mentioned fixing force.

[Effect of idea]

According to the present invention, one end of the leaf spring is fixed to the one side wall between the guide bar and the one side wall of the concave groove, so that the leaf spring is attached to the end surface of the base (frame body). It is not fixed on the top, and the width of the base (frame body) can be reduced. Therefore, when each of the two guide bars is fixed by a leaf spring, the space for arranging the base (frame body) can also be made smaller than in the prior art by means of each of the leaf springs. Further, even if an external force is applied to the guide bar, the plate spring absorbs the external force via the guide bar, so that the durability of the guide bar and the holding member can be maintained.

In addition, except for the above-mentioned male screw members and bearing members,
Even in the case where the conveyance table is moved directly in the axial direction of the guide bar or by remote control, one part of the leaf spring is fixed to one side wall of the concave groove, and the plate spring is moved in the axial direction of the guide bar. The other portion of the spring may press each of the two guide bars against the other side wall of the concave groove, which is of course applicable to the present invention.

In this case, when replacing the guide bar as necessary, it is sufficient to simply remove or attach the guide bar against the biasing force of the aforementioned leaf spring without rotating the fixing screw. This can also save you time and effort.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a guide bar fixing device according to a first embodiment of the present invention. FIG. 2 is a schematic front view of a guide bar fixing device according to a second embodiment of the present invention. FIG. 3 is a schematic front view of a guide bar fixing device according to a third embodiment of the present invention. FIG. 4 is a schematic front view of a guide bar fixing device according to a fourth embodiment of the present invention. Figure 5 shows
FIG. 6 is a schematic front view of a guide bar fixing device according to a fifth embodiment of the present invention; FIG. 6 is a side view of a conveying device equipped with a conventional guide bar fixing device.
FIG. 7 is a top view of the conveying device. Explanation of symbols of main parts, 1a... Holding member,
2, 7, 8, 9... Concave groove, 3, 5, 6... Leaf spring.

Claims (1)

[Claims for Utility Model Registration] First and second guide bars formed in a straight line; two end faces facing each other with a gap;
and four concave grooves provided on each of the two end faces for each of the first and second guide bars, in order to loosely fit both ends of the second guide bar. a base; and a plurality of leaf springs provided in each of the four concave grooves, wherein the leaf spring is bent in each of the four concave grooves so that one portion of the leaf spring is bent. is fixed to one side wall of the concave groove, and the restoring force of the spring causes the other part of the plate spring to press the guide bar against the other side wall of the concave groove. Bar fixing device.