JPH0535205Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is used in distribution boards, switchboards, etc., for protection plates that cover conductive parts, panels for mounting operation monitoring equipment such as indicator lights and operation switches, and for mounting electrical equipment. This invention relates to a support fitting that can support a plate or the like in a height-adjustable manner.

(Prior Art) As shown in FIG. 5, this type of conventional support fitting is such that a movable fitting 53 having a support plate portion 52 at its upper end is slidably attached to a fixed fitting 51. By inserting a screw 55 through the elongated hole 54 and screwing its tip into a screw hole 56 provided in the movable metal fitting 53, the movable metal fitting 53 can be tightened and fixed to the fixed metal fitting 51 at a predetermined height. (For example, Utility Model Application Publication No. 117192/1983).

(Problem to be solved by the invention) However, in such conventional support fittings, the movable fitting 53 is fixed to the fixed fitting 51 only by the friction caused by tightening the screw 55, so when the screw is loosened, the movable fitting 53 does not reach a predetermined height. Not only is there a problem that the screws 55 cannot be held in place, but also that the screws 55 cannot be tightened securely in the specified position when adjusting the height, and when a protective plate, etc. is supported by multiple support fittings, the height may vary. There was also the problem of ease of use.

This invention solves the conventional problems as mentioned above,
It was completed with the aim of providing a support metal fitting that can reliably maintain a predetermined height and that is less likely to cause variations in height even when a plurality of support metal fittings are used.

(Means for Solving the Problems) The present invention, which was made to solve the above-mentioned problems, consists of a fixed metal fitting whose lower end is fixed in the panel, and a movable metal fitting slidably attached to the fixed metal fitting. A long hole with a large number of conical recesses connected at the same pitch on the hole edge is provided on one side of the hole, and a screw hole and a screw hole shifted by half a pitch from the screw hole are provided on the other side. The present invention is characterized in that a screw having a conical seat surface is screwed into one of the screw holes by fitting the conical seat surface into a conical recess of the elongated hole.

Further, it is more preferable to provide a scale on the movable plate portion of the movable metal fitting.

(Example) Next, examples of the present invention are shown in Figs. 1, 2, and 3.
This will be explained in detail with reference to FIG.

Reference numeral 1 designates a fixing fitting in which side plate parts 3, 3 are bent on both sides of the main plate part 2, and mounting plate parts 4, 4 are bent and formed at the lower ends of the side plate parts 3, 3. Reference numeral 5 denotes a movable metal fitting that is slidably fixed to the fixed metal fitting 1, and the movable metal fitting 5 has a front surface of a movable plate part 7 with a support base part 6 provided at the upper end attached to the rear surface of the main plate part 2. , both end surfaces are held by side plate parts 3, 3 and are slidable in the height direction. Reference numeral 8 denotes a long hole elongated in the height direction provided in the main plate portion 2 of the fixture 1, and a large number of conical recesses 8a are successively arranged at the same pitch on the edge of the long hole 8. Reference numeral 9 denotes a screw hole corresponding to this elongated hole 8, which is provided in the movable plate portion 7 of the movable metal fitting 5. Moreover, 9a is a screw hole provided half a pitch shifted from the screw hole 9, and the screw hole 9a
By properly using the screw holes 9 and 9, the height can be adjusted in half-pitch increments. Reference numeral 10 denotes a screw for fixing the movable metal fitting 5 to the fixed metal fitting 1 by screwing the elongated hole 8 into the screw hole 9 or the screw hole 9a. This screw 10 has a conical seat surface 10a, and when the screw 10 is tightened, the conical seat surface 10a is fitted into a conical recess 8a at an appropriate location.

Note that reference numerals 11 and 11 are two protrusions (upper and lower) protruding above the inner surfaces of the side plate parts 3, 3 for holding both rear sides of the movable plate part 7, and each protrusion 11 has a small circular shape extending from the outer surface of the side plate part 3. Approximately half of the wall thickness is hammered in to form a protrusion on the inner surface side. Further, the support part 6 has a screw hole 6a bent at the upper end of the movable plate part 7.
An upright plate part 6c is connected to the tip of the attached horizontal plate part 6b, and as shown in FIG.
may be connected to the movable plate portion 7 by a hinge 12. Reference numeral 13 denotes a scale provided on the front surface of the movable plate portion 7, and is used to easily read the support height at the upper edge of the main plate portion 2.

(Function) In the device configured as described above, the fixing metal fitting 1 is attached to the mounting plate 15 of the box body 14 of the distribution board, switchboard, etc. by means of screwing, welding, etc.
A screw hole 9 or a screw hole 9 provided in the movable plate portion 7 by inserting a screw 10 through a long hole 8 provided in the main plate portion 2 of the
a loosely, adjust the height of the movable plate part 7 while sliding the shaft of the screw 10 inside the long hole 8, and tighten the screw 10 when the support part 6 reaches a predetermined height. to fix the movable fitting 5 to the fixed fitting 1,
This supports the protection plate 17 that covers the conductive member to which the circuit breaker 16 is connected at a predetermined height, or supports the panel for mounting operation monitoring equipment, the electrical equipment mounting plate, etc. in a height-adjustable manner. It is the same as before.

However, in the present invention, a conical notch 8a is connected to the edge of the elongated hole 8, and the screw 10 has a conical seat surface 10a that fits into the conical notch 8a.
Therefore, when the screw 10 is tightened, the conical seat surface 10a is fitted into the conical recess 8a where the movable plate part 7 is fixed. As a result,
Since the movement of the screw 10 is restricted by fitting into the conical recess 8a, even if the screw 10 is slightly loosened, the fixed position of the movable plate portion 7 will not shift, and there is no possibility that the support height will fluctuate. This is not the case at all. In addition, since the conical seat surface 10a of the screw 10 is fitted into the conical recess 8a, the tightening position can be reliably maintained at a constant position, so even when using multiple support fittings, each support There is no problem with variations in the height of the metal fittings. moreover,
If the screw is tightened strongly, the edge of the conical recessed portion 8a will bite into the conical seat surface 10a, so there is an advantage that it is difficult to loosen. Further, since the screw hole 9a is provided half a pitch apart from the screw hole 9, the height can be finely adjusted by using both screw holes 9, 9a properly. Furthermore, if the scale 13 is provided on the movable plate portion 7 of the movable metal fitting 5, the height of the movable metal fitting 5 can be easily read, which is particularly convenient for aligning the heights of a large number of supporting metal fittings.

(Effects of the invention) As is clear from the above explanation, the invention has the following effects:
A number of conical recesses into which the conical bearing surface of the screw can fit into the edge of the elongated hole through which the screw is inserted are arranged in series at the same pitch, so that even if the screw is loosened, the support bracket will remain at the desired height. Not only can it be held, but even when a plurality of support metal fittings are used, each support metal fitting can be reliably kept at a constant height. Moreover, the height can be finely adjusted by providing two screw holes shifted by a half pitch. Therefore, the present invention eliminates the problems of conventional supporting metal fittings of this type and has extremely great practical value.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is a partially cutaway plan view, Fig. 3 is an exploded perspective view, and Fig. 4 is a partially cutaway side view showing the device in use. FIG. 5 is an exploded perspective view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Fixed metal fitting, 5... Movable metal fitting, 7... Movable plate part, 8... Elongated hole, 8a... Conical recessed part, 9...
...Screw hole, 9a...Screw hole, 10...Screw, 10
a... Conical bearing surface, 13... Scale.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A fixed metal fitting 1 whose lower end is fixed in the panel and a movable metal fitting 5 slidably attached to the fixed metal fitting 1, each having a large number of conical shapes on the hole edge. Recessed part 8a
A conical seat surface 10 is provided with a long hole 8 in which the screw holes 8 are connected at the same pitch, and a screw hole 9 and a screw hole 9a shifted by half a pitch from the screw hole 9 are provided on the other side.
A support metal fitting characterized in that a screw 10 having a diameter of 1.a is screwed into one of the screw holes 9, 9a by fitting the conical seat surface 10a into the conical recess 8a of the elongated hole 8. 2. The support metal fitting according to claim 1, wherein a scale 13 is provided on the movable plate portion 7 of the movable metal fitting 5.