JPS62132013A - Adjustment type fixture - 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 The present invention provides an adjustable system that connects two elements, particularly a television screen and a frame that supports and holds it, to each other while automatically absorbing any gaps between them. Pertains to fixation devices.

It is well known that processing tolerances can lead to inconveniences when fixing relatively planar elements, such as panels, television screens, video terminals, etc., and their supporting frames to each other. This is due to the fact that the joints between two elements that are joined using screws or other connecting members are not necessarily coplanar. Therefore, if you want to guarantee parallelism between two elements, as is required in most applications, you will need to adjust some of the junction points to accommodate the gap created by connecting the two elements in parallel. Is there a need to do that? Such methods complicate and slow device assembly, resulting in decreased productivity and increased costs.

It is also clear that the adjustment of the joint points causes a slight decrease in precision, which has a negative effect on the quality of the product.

It is an object of the present invention to connect two elements to each other while automatically adjusting its position to absorb any gaps that occur between the joining points of the elements when three elements are connected in parallel. The object of the present invention is to realize a fixing device that performs the following.

The purpose of this is to provide an adjustment and fixing device that automatically absorbs any gaps between the two elements when joining the two elements, and that there is no play in the hole drilled in the first element of the three elements. a screw disposed with a screw and a blind hole provided in a second element of both the elements corresponding to the hole of the first element, fixed angularly and slidable in the axial direction; a telescoping insert disposed in the screw, the wedge-shaped male portion having a threaded hole therein configured to engage the screw; A first end receives the male portion and undergoes a unidirectional deformation, and a second end opposite to the first end receives the screw and directs the screw toward the male portion. a telescoping insert member configured to pass through the female portion; and fixing means supported by the female portion on the sides thereof so as to be bitten and secured to both side walls of the blind hole. This is accomplished by a device consisting of:

Next, embodiments of the present invention will be described with reference to the accompanying drawings.

The device shown surjectively as 1 in Figure i1 connects two relatively parallel elements 3.4 by a connecting means forming an integral part of the device 1, such as a screw 2 of suitable length. It is an adjustable fixation device. The elements 3 and 4 include, for example, two panels, the element 3 being the exterior plate of a known television screen, and the element 4 being the front part of the fixing frame of the television screen molded from plastic or the like with large tolerances. It's okay. Elements 3.4 must be connected strictly in parallel, and multiple connection points are provided;
Only one of them is shown for simplicity. Each connection point has a through hole 5 drilled in the element 3, into which the screw 2 passes with play, the head 6 of the screw resting against the surface of the element 3.

The connection point is provided in the element 4 corresponding to the through hole 5 and defines a blind hole 8 configured to receive the device l. 6th
7, this blind hole 8 is constituted by a cylindrical portion 10 projecting from the element 4, preferably provided with a side wall 11 reinforced by a ridge 12, and having a planar shape, for example, a rectangular shape. It is desirable to form This blind hole 8 has an opening facing the element 3, and the element 3 is supported against the cylindrical part 10 with the through hole 5 facing the opening of the blind hole 8.

This allows it to be supported horizontally on either element 3 or element 4, ensuring parallelism between the two. However, in normal cases, the openings of the blind holes 8 are not necessarily on the same plane due to processing errors (there is a tolerance for the protrusion height of the cylindrical part 10), so the element 3 is placed in one of the cylindrical parts 10. When the element 3 is supported by a gap G between the element 3 and the opening of the other blind hole 8,
(Figure 1) Sometimes this happens.

In order to absorb the gap G that differs from one blind hole to another without using any special measures, the device of the present invention is designed to absorb the gap G that is different for each blind hole 8 without using any special measures. A screw with a foot long enough to allow insertion (this length can be readily determined by the engineer once the maximum tolerance allowed in the construction of element 3.4 is known). 2, a telescoping insert member 16 is provided. This insert member is made of plastic material and has a shape similar to that of the cylindrical portion of the blind hole 8. In addition, its dimensions are such that when placed in the blind hole 8, it slides in the axial direction but does not move angularly, in other words, it cannot rotate around the axis of the insert member 16. is prevented, but it is allowed to move parallel to the axis. Also supported by the side surface of the insert member 16, the blind hole 8
It also includes locking means configured to cooperate with the side 911 to selectively axially lock the insert member 16 in position within the blind bore.

Referring also to FIGS. 3, 4 and 5, the insert member 16 includes a wedge-shaped male portion 20 in its lower portion with a threaded hole 21 therein for engaging the leg of the screw 2; Its upper part includes a radially elastically deformable female part 23. The female portion 23 receives and is deformed by the male portion 20 at its lower end 24 and is fitted with a through hole 26 in its upper end 25.
receives the screw 2 and passes it longitudinally towards the male part 20. The lower end 24 of the female portion opposite the male portion 20 is integrally connected to the male portion 20 via at least one pair of opposing flexible tongues 27 .

A tongue 27 connects the lower end 24 of the female part 23 and the lower end of the male part 20. The female part is substantially U-shaped;
two rigid abutment flanges 28 provided integrally with the upper end 25 on its side pieces; and a pair of overhanging parts 30 extending longitudinally towards the male part 20 and forming the main body of the female part. Contains. The raised portion 30 is configured to cooperate with an inclined surface 31 of the male portion 20. The sloped surfaces 31 are formed to expand downward and outward from the part where they enter the female part 23, and when the male part 20 is introduced into the female part 23, the part 30 covered with these slopes is turned inward. It is configured to elastically expand from.

The axial fixing means for the insert member 16 includes an inverted U-shaped leaf spring 35 that covers the upper end 25 of the female portion 23 from above between the two abutment flanges 28 . The leaf spring 35 is held in a spring manner by the female part 23. female part 2
3 is provided with a notch 36 on the outside of each protruding portion 30, and opposing tongue pieces 38, which are formed by punching out both sides of the spring 35 into a U-shape and bending inward, insert into the notch 36 to form a plate. A spring 35 is attached to the female part 23 (see FIG. 1.2). The leaf spring 35 is provided with at least one pair of radially outwardly directed fins 40 which are cut into the side wall 11 of the blind hole 8 and are fixed in the blind hole. These fins are preferably formed by bending the lower ends of the leaf springs 35 outward (see FIGS. 1 and 3).

In use, the insert member 16 is placed inside the blind hole 8 of the element 4, as shown in FIG. 1, and the screw 2 is passed through the through hole 5 of the element 3. This causes the elements 3.4 to be connected to approach each other until the elements 3 are connected to the 7 flange 2 of the insert 16.
8 and abuts against the opening of at least one cylindrical portion 10 to close the opening. Finally, the elements 3 and 4 are arranged in parallel, and the screw 2 is screwed into the tapped hole 21 of the insert member 16 to fix the element 3.4. In this case, if the amount of protrusion of each cylindrical portion is exactly constant, the opening of the blind hole 8 and the element 3
If there is no difference in the gap G between the joint points between the flange 2 and the cylindrical part 10 and the element 3, the insert member 16 will not move inside the blind hole 8. So screw 2
When screwed into the tapped hole 21, the head 6 of the screw comes into contact with the element 3. If screwing in continues, the female portion 23 remains fixed and is pulled up by the male portion 20 or the screw 2, and moves in the axial direction while bending the tongue portion 27. The slanted portion 30 that is in sliding contact with the slanted surface 31 is the fin 4.
The fins 40 are expanded while being pressed against the side wall 11 of the cylindrical portion, and finally the fins 40 are bitten into the side wall 11 and fixed. As a result, the insert member 16 is securely and permanently axially fixed in the blind JL8. Therefore, element 3 is connected to insert member 16 by screw 2, and screw 2 is connected to element 4 by biting and fixing fin 40 into side wall 11, so that elements 3 and 4 have fins 40 attached to them. connected via.

On the other hand, if the heights of the cylindrical parts are different and there is a difference in the gap G, and the element 3 separates from the flange 28, the insert member 16 will move in the axial direction and partially come out of the blind hole 8. Insert the screw 2 into the tapped hole 2 of the male part 20.
1, the male part 20 is forced to move in the axial direction toward the opening of the blind hole 8 after its head 6 contacts the element 3, and the female part 23 is also forced to move in the axial direction. Similarly, it moves via the flexible tongue 27. Thus the flange 28
When the insert member 16 is not in contact with the element 3, the insert member 16
is located in the blind hole 8 with play, so that the tongue 27 does not bend, so that the entire insert 16 can be pivoted out of the blind hole 8 by the fork 2 as shown by the arrow (FIG. 2). The flange 28 moves in the axial direction from below to the outside of the element 3, and the error in the gap G is absorbed by the flange 28 abutting the element 3 from below. Then, when the flange 28 contacts the element 3 and the insert member 16 is fixed in the axial direction, when the screw 2 is further screwed in, only the male portion 20 moves and the tongue portion 27 is bent. Then, the girder section 30 is widened. As a result, the fins 40 bite into the side wall 11 and are fixed, and the insert member 16 is fixed, thereby being fixed to either the element 3 or the element 4. As is clear from the above description, the advantage of the fixing device of the present invention is that even if there is a gap at the joint between two elements to be fixed horizontally, a part of the insert member 16 can bite into the fin 40. The point is that the gap can be absorbed by automatically coming out from the initial position before the elements 3 and 4 are fixed together, that is, before the elements 3 and 4 are fixed. Moreover, the protrusion of the insert member 16 in this manner is a natural result of the simple screw tightening operation and the existence of a gap, and there is no need to take any special measures during fixation.

The fixing operation is therefore considerably simpler and faster than with conventional fixing means.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view showing two elements to be joined in a state where they are not yet connected, and FIG. 3 is a side view of the insert member shown in FIG. 1, FIG. 4 is a front view of the insert member, FIG. 5 is a plan view of the insert member, and FIG. 6 is a plan view of the insert member shown in FIG. 1. FIG. Figure 7 is a plan view of Figure 56. In the figure, ■ is a fixing device, 2 is a spring, 3 and 4 are elements, 5 is a through hole, 8 is a blind hole, 11 is a side wall of the blind hole, 15 is an insert member, 20 is a male member, 21 is a spring Hole, 23 is female part, 2
4 is the first end of the female part, 25 is the second end of the female part, 3
5 indicates a leaf spring with fixing means in the form of radially outward fins.

Claims (5)

[Claims] (1) In an adjustable fixing device that joins two elements while automatically absorbing any gap between the two elements, play is provided in the hole drilled in the first element of the two elements. a screw which is fixed in an angular direction and slidable in an axial direction in a blind hole provided in a second element of the two elements corresponding to the hole in the first element; a wedge-shaped male portion provided with a threaded hole configured to engage the screw; One end is configured to receive the male portion and undergo elastic deformation, and a second end opposite to the first end is configured to receive the screw and allow the screw to pass toward the male portion. and a fixing means supported by the female part on its sides so as to be bitten into and fixed to both side walls of the blind hole. Adjustable fixation device. (2) The telescoping insert member has a columnar shape similar to the shape of the blind hole, and the male portion and female portion of the insert member are connected to each other through at least one pair of opposing flexible tongue portions. Claim 1, wherein the first end of the female part is connected to the end of the male part opposite to the female part. equipment. (3) the female portion is substantially U-shaped;
an abutment flange provided integrally with the second end; and as a result of the male portion being introduced into the female portion, the male portion cooperates with the inclined surface of the male portion to elastically expand. 3. A device as claimed in claim 1 or claim 2, comprising a pair of overhanging vertical sections configured as follows. (4) The locking means comprises a U-shaped leaf spring connected and supported from the second end by the female portion, and both ends of the leaf spring are far from the central axis of the telescoping insert member. 2. A pair of radially outwardly directed fins which are bent laterally in a direction away from each other to form a pair of radially outwardly directed fins configured to bite into a side wall of said blind hole and secure said telescoping insert member thereto. Apparatus according to any one of ranges 1 to 4. (5) The leaf spring is supported in a spring manner by the female portion, and a pair of notches are provided on both sides of the female portion, and the notches are provided by shearing the leaf spring in half. 5. A device according to claim 4, each restrained by a locking fin.