GB2148052A - Switch mounting structure - Google Patents
Switch mounting structure Download PDFInfo
- Publication number
- GB2148052A GB2148052A GB08424919A GB8424919A GB2148052A GB 2148052 A GB2148052 A GB 2148052A GB 08424919 A GB08424919 A GB 08424919A GB 8424919 A GB8424919 A GB 8424919A GB 2148052 A GB2148052 A GB 2148052A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switch
- casing
- mounting frame
- ridges
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
- H02B1/044—Mounting through openings
- H02B1/048—Snap mounting
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
A switch mounting structure includes a switch casing (10) and a mounting frame (11). The switch casing (10) has flanges (10a) extending from the upper surface thereof, resilient arms (10c) formed on side surfaces of the casing (10), ridges (10b) formed on the upper portions of side surfaces of the casing (10), and recesses (12) formed near the upper portions of the ridges (10b). The recesses (12) receive the shavings of the ridge surfaces when the switch casing (10) is press fitted into a mounting hole (11a) of a mounting frame (11) having a diameter which is slightly smaller than the distance between the ridges (10b). The switch casing (10) is mounted on the mounting frame (11) in such a manner that the mounting frame (11) is clamped by the flanges (10a) and the resilient arms (10c). <IMAGE>
Description
Switch mounting structure
BACKGROUND OF THE INVENTION
Field of the Invention:
The present invention relates to a structure for mounting a switch casing to a supporting frame wherein shavings, which are produced when the switch casing is inserted into a hole in the mounting frame, are prevented from being caught between the switch casing and the mounting frame.
Description of the PriorArt:
A known structure for mounting a switch to a frame is illustrated in Figs. 1 and 2. The switch casing 1 is provided with collars la, ridges 1b and resilient arms Ic as shown. The ridges 1b are pressfitted into a mounting hole 2a formed in the frame 2, and the frame 2 is clamped between the collars la and the resilient arms 1 c, thereby to mount the switch casing 1 to the frame 2.More specifically, as shown in Fig. 2, the width W of the portion of the switch casing 1 to be received in the hole 2a is smaller than the diameter dofthe hole 2a in the frame 2, but the distance D between the ridges 1b on opposite sides of the switch casing 1 is made slightly larger than the diameter dofthe hole 2a. For this reason, as the switch casing 1 is inserted into the hole 2a in the mounting frame 2 the respective surfaces of the ridges 1b are slightly shaved off until the collars la abut against the upper surface of the mounting frame 2.At this time, the respective arms ic, which are respectively provided on the sides of the switch casing 1 which do not have the ridges 1b, are resiliently engaged with the hole 2a from the inner side of the mounting frame 2. The switch casing 1 is then secured to the mounting frame 2.
The conventional switch of the type described above, however, encounters the following problem:
Since the surfaces of the ridges 1b projecting from the switch casing 1 are slightly shaved off when the switch casing 1 is press-fitted into the hole 2a in the mounting frame 2, the resulting shavings may gather between the switch casing 1 and the mounting frame 2, thus causing the switch casing 1 to become mounted on the mounting frame 2 in an inclined manner. In such case, the switch may disadvantageously chatter when it is depressed.
Further, the switch may fail to give a satisfactory feeling of being correctly engaged when a switch operator actuates the switch.
SUMMARY OF THE INVENTION
Accordingly, it is a primary object of the present invention to provide a switch mounting structure in which the shavings of the surfaces of the ridges produced when the switch casing is press-fitted into the mounting hole in the mounting frame are prevented from gathering between the switch casing and the mounting frame, thereby to provide a switch which is free from chattering and permits the switch operator to get a satisfactory feeling of response when he or she actuates the switch.
To this end, according to the invention, there is provided a switch mounting structure comprising: a switch casing having collars extending from the
upper surface of a switch casing, resilient arms
respectively formed on side surfaces of the casing,
ridges respectively formed on the upper portions of side surfaces of the casing, and recesses
respectively formed near the upper portions of the
ridges. A mounting frame formed with a mounting hole having a diameter d slightly smaller than the distance D between the ridges is provided, wherein the switch casing can be mounted on the mounting frame in such a manner that the mounting frame is clamped by the collars and the resilient arms.
The above and other objects, features and advantages of the present invention will become clear from the following description of the preferred embodiment thereof, taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is an exploded perspective view of a conventional switch;
Fig. 2 is an illustration showing dimensions of various portions of the conventional switch shown in Fig. 1, including the diameter of a mounting hole formed in the mounting frame thereof;
Fig. 3 is a front elevational view of a switch in accordance with one embodiment of the present invention;
Fig. 4 is an enlarged perspective view of the switch shown in Fig. 3, particularly showing a recess therein; and
Fig. 5 is an enlarged sectional view taken along the line V-V of Fig. 3.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The present invention will be described hereinunder with reference to the accompanying drawings.
Referring to Figs. 3 to 5 which in combination show one embodiment of the present invention, a switch casing 10 is molded from a synthetic resin.
The switch casing 10 is provided with a collar 10a which extends from the upper surface thereof in a manner similar to the switch casing of Figs. 1 and 2, and a ridge 10b which extends downwardly along the outer surface of the side wall of the casing 10.
The ridges 10b extend orthogonally downwards from a respective collar 10a and a recess 12 is formed in a portion of the collar 1 Oa on the side thereof which faces the ridge 10b around the intersection between the ridge 10b and the collar 1Oa. The recess 12 serves to receive shavings 13 of the ridge 10b which are produced when the switch casing 10 is inserted in a mounting hole 11a formed in a mounting frame 11. Although in this embodiment the recess 12 has a square crosssection, the recess 12 may be formed into any desired shape in cross-section, such as a circular or triangular shape. Moreover, in the embodiment shown in Fig. 3, the recesses 12 are formed in pairs on each of the front and rear surfaces of the switch casing 10.However, it is, as a matter of course, possible to provide any desired number of recesses 12 in correspondence with the number and position of the ridges 1 Ob provided. It is to be noted that the reference numeral 10c in Fig. 3 denotes the resilient arms which respectively come in resilient contact with the right and left edge portions of the mounting hole 1 lea in the mounting frame 11. Each resilient arm 1 0c is formed to exert an outward resilient force and to resiliently contact at its upper portion the corresponding edge portion of the mounting hole 1 lea. In addition, the reference numeral 14 represents a guide pillar which is fitted with a keytop (not shown).
The following is a description of the operation of the present invention having the above-described construction.
When the switch casing 10 is inserted into the mounting hole 1 lea in the mounting frame 11, the respective surfaces of the ridges 1 Ob are shaved off by the corresponding edge portions of the mounting hole 1 it. More specifically, as shown in Fig. 5, the switch casing 1 is inserted into the mounting hole 1 lea in the mounting frame 11 while allowing the surfaces of the ridges 10bto to be shaved off until the collars 1 Oa abut against the mounting frame ii. As the switch casing 10 is inserted into the mounting hole ila in the mounting frame 11, the shavings 13 gradually gather on the upper surface of the edge portion of the mounting hole 1 lea, and when the collars 10a abut against the mounting the mounting frame lithe shavings 13 will have been received in the recesses 12.Thus, it is possible to eliminate the conventional problem that the shavings 13 may be caught between the collars 1 Oa of the switch casing 10 and the mounting frame 11 to cause the switch casing 10 to be slantingly and loosely mounted on the mounting frame 11. On the other hand, as the switch casing 10 is inserted into the mounting hole 1 lea from the bottom portion thereof, the resilient arms 10c, which are respectively provided on the right and left sides of the switch casing 10, come into contact with the respective wall portions of the mounting hole 1 lea and are gradually bent inwardly.
When the switch casing 10 is inserted further, the upper portion so of the resilient arms lOc are resiliently engaged with the right and left edge portions, respectively, of the mounting hole lia.
Thus, the switch casing 10 is reiiably secured in the mounting hole 1 in the mounting frame 11 at the front and rear as well as the right and left portions thereof by means of the ridges 10b and the resilient arms 10c.
As has been described above, according to the present invention, the shavings of the ridge surfaces which are produced when the switch casing is press-fitted into the mounting hole in the mounting frame are all gathered in the recesses provided on the respective iower sides of the collars. Thus, it is possible to prevent the shavings from being caught between the lower surfaces of the collars and the mounting frame and to reliably mount the switch casing on the mounting frame without any possibility that the switch casing may be slantingly and loosely mounted due to existance of the shavings. Accordingly, it is possible to provide a switch which is free from chattering and permits the switch operator to have a satisfactory feeling of response when he or she actuates the switch.
Claims (2)
1. A switch mounting structure comprising; a switch casing having collars extending from the upper surface of a switch casing, resilient arms respectively formed on side surfaces of said casing, ridges respectively formed on the upper portions of side surfaces of said casing, and recesses respectively formed near the upper portions of said ridges; and a mounting frame formed with a mounting bore having a diameter which is slightly smaller than the distance between said ridges, wherein said switch casing can be mounted on said mounting frame in such a manner that said mounting frame is clamped by said collars and said resilient arms.
2. A switch mounting structure substantially as hereinbefore described, with reference to Figures 3 to 5 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983153391U JPS6060829U (en) | 1983-10-04 | 1983-10-04 | switch |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8424919D0 GB8424919D0 (en) | 1984-11-07 |
| GB2148052A true GB2148052A (en) | 1985-05-22 |
| GB2148052B GB2148052B (en) | 1987-06-17 |
Family
ID=15561459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08424919A Expired GB2148052B (en) | 1983-10-04 | 1984-10-03 | Switch mounting structure |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS6060829U (en) |
| KR (2) | KR890002624Y1 (en) |
| DE (1) | DE3436280A1 (en) |
| GB (1) | GB2148052B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011165416A (en) * | 2010-02-08 | 2011-08-25 | Panasonic Corp | Switch device |
| JP6619659B2 (en) * | 2016-02-01 | 2019-12-11 | 株式会社東海理化電機製作所 | Switch device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE715385A (en) * | 1967-06-15 | 1968-10-16 | ||
| CA972060A (en) * | 1972-12-07 | 1975-07-29 | Miklos Madarasz | Modular program array for electrical circuits |
| DE7823743U1 (en) * | 1978-08-09 | 1979-01-04 | Ernst Tesch Gmbh & Co Kg, 5600 Wuppertal | Device for the installation of a surface-mounted housing |
| JPS583227U (en) * | 1981-07-01 | 1983-01-10 | 旭化成株式会社 | hot runner mold |
-
1983
- 1983-10-04 JP JP1983153391U patent/JPS6060829U/en active Pending
-
1984
- 1984-08-23 KR KR2019840008275U patent/KR890002624Y1/en not_active Application Discontinuation
- 1984-08-23 KR KR2019840008275U patent/KR850009711U/en not_active IP Right Cessation
- 1984-10-03 DE DE19843436280 patent/DE3436280A1/en active Granted
- 1984-10-03 GB GB08424919A patent/GB2148052B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6060829U (en) | 1985-04-27 |
| GB8424919D0 (en) | 1984-11-07 |
| GB2148052B (en) | 1987-06-17 |
| KR850009711U (en) | 1985-12-05 |
| DE3436280A1 (en) | 1985-04-11 |
| KR890002624Y1 (en) | 1989-04-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |