JP4508395B2 - Separate unit structure for panels - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is for a panel having a detachable unit with a built-in light source and power supply component or switch mechanism on the back side of a fixed unit fixed to the panel, such as an indicator lamp or an illuminated pushbutton switch. The present invention relates to a separate unit structure.
[0002]
[Prior art]
Of the electrical parts that are attached to the panel, those that are equipped with light source lamps such as indicator lamps and illuminated pushbutton switches, take into consideration when the light source lamp is out of sphere or when the light source color is changed. It is necessary to provide a structure that can be easily replaced. For this reason, in panel electrical parts such as indicator lamps and illuminated pushbutton switches, there are fixed units, light source lamps, power supply circuits, etc. that are fixed to the panel with the translucent display part exposed on the front of the panel. There is a separate unit structure that includes a built-in and detachable unit that is built-in and has a fitting portion that is fitted on a mounting portion that protrudes toward the back side of the display portion.
[0003]
As a conventional separated unit structure for a panel, as shown in FIG. 4A, a concave engaging portion 42 is formed on a part of the outer peripheral surface of the mounting portion 41b protruding to the back side of the display portion 41a in the fixed unit 41. On the other hand, by supporting the convex engaging portion 44 on a part of the fitting portion 43a of the detachable unit 43 via the elastic piece 44a, the engaging portion 44 is elastically engaged with the engaging portion 42, There is one in which the external fitting state of the fitting portion 43a of the detachable unit 43 with respect to the mounting portion 41b of the fixed unit 41 is maintained.
[0004]
In this unit structure, the elastic piece 44a is elastically deformed outward through a general-purpose tool such as a screwdriver inserted into a hole 45 formed outside the engaging portion 44 as shown in FIG. By releasing the engaged state of the engaging portion 44 with respect to the engaging portion 42 as shown in FIG. 10C, the detachable unit 43 can be separated from the fixed unit 41 as shown in FIG. .
[0005]
Further, as shown in FIG. 5A, the engagement holes 52 are formed at two places in the mounting portion 51b of the fixed unit 51, while the convex engagement portions 54 are formed at two places of the fitting portions 53a of the detachable unit 53. By attaching the engaging part 54 to the engaging hole 52 from the inside of the mounting part 51b as shown in FIG. Some of them are designed to maintain the externally fitted state of the 53 fitted portions 53a.
[0006]
In this unit structure, the elastic piece 54a is elastically deformed inward by pressing the engaging portion 54 from the outside as shown in FIG. By releasing, the detachable unit 53 can be separated from the fixed unit 51 as shown in FIG.
[0007]
[Problems to be solved by the invention]
However, in the unit structure shown in FIG. 4, when removing the detachable unit 43 from the fixed unit 41, a tool to be inserted into the hole 45 in order to elastically deform the elastic piece 44 a is always required. There is a problem that the removal work becomes complicated. Moreover, since the elastic piece 44a which formed the engaging part 44 is formed in a part of the fitting part 43a, it is attached to the back surface of the detachable unit 43 via a power cord or the like extending from the back surface of the detachable unit 43, for example. When a large external force is applied in the downward direction in FIG. 4A, the elastic piece 44a is deformed to the outside by pressing by the end portion on the back side of the mounting portion 41b, and the engagement portion 44 is engaged with the engagement portion 42. The state is released, and the detachable unit 43 that should not be detached from the fixed unit 41 may fall off.
[0008]
In the unit structure shown in FIG. 5, when the detachable unit 53 is detached from the fixed unit 51, the engagement portion 54 is pressed from the outside in order to release the engagement state of the engagement portion 54 with respect to the engagement hole 52. It is necessary to elastically deform the elastic piece 54a inwardly, but when a plurality of units are collectively arranged on the panel, there is a space for pressing the engaging portion 54 with a finger between the units. However, there is a problem that a dedicated tool is required.
[0009]
The object of the present invention is to remove the detachable unit from the fixed unit without using a tool when it is independently arranged on the panel and to prevent the detachable unit from dropping from the fixed unit due to the action of external force. Another object of the present invention is to provide a panel separation-type unit structure in which a detachable unit can be easily detached from a fixed unit without using a dedicated tool even when they are collectively arranged.
[0010]
[Means for Solving the Problems]
The present invention has the following configuration as means for solving the above problems.
[0011]
(1) In the separation type unit structure for a panel, including a fixed unit fixed to the panel, and a detachable unit that is detachably fitted in the front-rear direction with respect to the mounting portion protruding to the back side of the fixed unit.
The both ends of the flat elastic piece are integrated into the upper part of the two side surfaces exposed to the outside of the detachable unit and the two side surfaces facing each other parallel to the front-rear direction of the fixed unit;
At the center of the lower surface of the elastic piece, a detachable side engaging portion that engages downward with a fixed side engaging portion formed on a part of the outer peripheral surface of the mounting portion of the fixed unit is formed,
The engagement state of the detachable side engaging portion with respect to the fixed side engaging portion is released by elastic deformation upward of the central portion of the elastic piece when the two side surfaces are pressed in directions close to each other. Features.
[0012]
In this configuration, the detachable side engaging portion formed on a part of the elastic piece supported by two opposing side surfaces parallel to the front-rear direction of the fixed unit in the detachable unit is a part of the outer peripheral surface of the mounting portion of the fixed unit. The fixed side engaging portion formed in the portion is engaged in a direction orthogonal to the front-rear direction of the fixed unit. Therefore, if the elastic pieces are elastically deformed by pressing the two side surfaces supporting the elastic pieces in a direction approaching each other, the detachable side engaging portion is separated from the fixed side engaging portion, and the engagement state of both is released. The removable unit can be separated from the fixed unit.
[0013]
(2) The detachable unit has a fitting portion whose inner peripheral surface is opposed to a position where the fixed side engaging portion is formed at least on the outer peripheral surface of the mounting portion of the fixed unit.
In this configuration, the insertion portion of the detachable unit is the mounting portion of the fixed unit in a state where the formation position of the fixed side engaging portion on the outer peripheral surface of the mounting portion of the fixed unit faces the inner peripheral surface of the insertion portion of the detachable unit. Fits outside. Therefore, even when an external force is applied to the attachment / detachment unit attached to the fixed unit, the position where the fixed-side engagement portion is formed on the outer peripheral surface of the attachment portion of the fixed unit is applied to the inner peripheral surface of the insertion portion of the attachment / detachment unit. The pressing force in the direction of releasing the engagement state between the detachable side engaging portion and the fixed side engaging portion does not act on the elastic piece of the detachable unit from the mounting portion of the fixed unit.
[0014]
(3) The detachable unit is characterized in that a hole in the front-rear direction is formed in a part of the elastic piece so as to protrude outside the outer peripheral portion of the detachable unit.
[0015]
In this configuration, a hole in the front-rear direction protrudes outside the outer peripheral portion of the detachable unit from a part of the elastic piece where the detachable side engaging portion is formed. Therefore, even when there is not enough space outside the two side surfaces that support the elastic piece, the engaged state with the fixed side engaging portion is released via a general-purpose tool inserted into the hole portion from the back surface of the detachable unit. The detachable side engaging portion can be easily moved in the direction.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
1 (A) to 1 (D) are a front view of a detachable unit, a side view of a main part of the detachable unit, and a fixed portion of an indicator lamp to which a panel separation unit structure according to an embodiment of the present invention is applied. It is side surface sectional drawing of the principal part which shows the mounting state of a unit and a detachable unit, and the front view which shows the deformation | transformation state of the detachable unit at the time of removing from a fixed unit. FIG. 2 is a rear perspective view for explaining the operation when the detachable unit is removed from the fixed unit in the indicator lamp.
[0017]
The indicator lamp 1 includes a fixed unit 2 that is attached to the panel with a translucent display unit (not shown) exposed on the front surface of the panel, and a detachable unit 3 that accommodates the light source lamp 10 and the power feeding circuit 11 therein. In addition, the detachable unit 3 is detachably mounted on the back side of the fixed unit 2.
[0018]
In the attaching / detaching unit 3 of the indicator lamp 1, both ends of the plate-like elastic piece 4 are integrally formed on the inner side surfaces of the two side faces 3a and 3b facing each other parallel to the front-rear direction of the indicator lamp 1. . A protrusion 4 a that is an attachment / detachment side engaging portion of the present invention is formed on the lower surface of the elastic piece 4, and a hole 4 b protrudes outside the attachment / detachment unit 3 on the upper surface of the elastic piece 4.
[0019]
The detachable unit 3 is formed with a fitting hole 5 opened to the front. The insertion hole 5 is an insertion portion of the present invention and is fitted on the mounting portion 2 a of the fixed unit 2. On the upper surface of the outer peripheral portion of the mounting portion 2a, a concave portion 2b which is a fixed side engaging portion of the present invention is formed. When the detachable unit 3 is attached to the fixed unit 2, the projection 4 of the detachable unit 3 is perpendicular to the front-rear direction of the fixed unit 2 with respect to the recess 2 b of the fixed unit 2 (FIGS. 1A to 1D). (Downward direction) in FIG. 1 (C).
[0020]
The inner peripheral surface of the insertion hole 5 faces the outer peripheral portion of the mounting portion 2 a of the fixed unit 2 over the entire periphery inside the detachable unit 3. That is, in a state where the detachable unit 3 is mounted on the fixed unit 2, the portion where the recess 2b is formed in the outer peripheral portion of the mounting portion 2a of the fixed unit 2 is also in contact with the inner peripheral surface of the insertion hole 5. Even when a downward external force is applied to the back surface of the detachable unit 3, the elastic piece 4 including the protrusion 4a is pressed upward by the upper surface of the mounting portion 2a without causing an angle change of the mounting portion 2a in the insertion hole 5. Never happen. Therefore, the engagement state of the protrusion 4 with respect to the recess 2b is not released by the action of an external force on the detachable unit 3, and the detachable unit 3 that should not be detached from the fixed unit 2 does not fall off.
[0021]
When the detachable unit 3 is removed from the fixed unit 2 when the bulb of the light source lamp 10 is broken or the light source color is changed in the indicator lamp 1 after being attached to the panel, as shown in FIG. The center part of the up-down direction in the outer surface of the side surfaces 3a and 3b is pressed inside with a finger. By this operation, the central portion of the elastic piece 4 supported between the two side surfaces 3a and 3b in the detachable unit 3 is elastically deformed upward as shown in FIG. the formed projection 4 a is moved upward. This movement, engagement between the recess 2b formed in the mounting portion 2a of the projections 4 a and the fixed unit 2 is released. The detachable unit 3 can be detached from the fixed unit 2 by moving the detachable unit 3 to the back side of the fixed unit 2 from this state.
[0022]
Thus, when the single indicator lamp 1 is independently arranged on the panel, and there is sufficient space for pressing the two side surfaces 3a and 3b with fingers on both sides of the detachable unit 3 on the back of the panel. The detachable unit 3 can be detached from the fixed unit 2 without using a tool.
[0023]
It should be noted that there is sufficient space for pressing the two side surfaces 3a and 3b with fingers on both sides of the detachable unit 3 on the back of the panel, such as when a plurality of indicator lamps 1 are arranged in a panel. If not, a general-purpose tool such as a screwdriver is inserted into the hole 4b formed in the upper surface of the elastic piece 4 from the back side of the detachable unit 3, and the elastic piece 4 is lifted upward via this tool. The engagement state between the protrusion 4a and the recess 2b can be released, and the detachable unit 3 can be detached from the fixed unit 2 without using a dedicated tool.
[0024]
3 (A) to 3 (C) are a front view of an attaching / detaching unit for an indicator lamp to which a separated unit structure for a panel according to another embodiment of the present invention is applied, a side view of a main part of the attaching / detaching unit, And it is side surface sectional drawing of the principal part which shows the mounting state of a fixing unit and a detachable unit. The indicator lamp 21 according to this embodiment includes elastic pieces 24 at two upper and lower positions on the front side of the detachable unit 23. Each elastic piece 24 is formed integrally with the inner side surfaces of two side surfaces 23a and 23b parallel to the front-rear direction at both ends, and on the lower surface of the upper elastic piece 24 and the upper surface of the lower elastic piece 24, respectively. The protrusion 24a is formed so as to protrude, and a hole 24b is formed on the upper surface of the upper elastic piece 24 and the lower surface of the lower elastic piece 24 so as to protrude outside the upper and lower surfaces of the detachable unit 23. Note that a notch 26 in the front-rear direction is formed in the middle portion in the up-down direction on each of the two side surfaces 23a, 23b.
[0025]
Correspondingly, protrusions 24a formed on the upper and lower elastic pieces 24 are elastically formed at two locations on the outer peripheral surface of the mounting portion 22a of the fixed unit 22 when the detachable unit 23 is mounted on the fixed unit 22. A recess 22b is formed to engage the. With this configuration, when the detachable unit 23 is mounted on the fixed unit 22, the concave portion 22 b and the protrusion 24 a are engaged at the upper and lower portions of the fixed unit 22 and the detachable unit 23, and the mounting state of both is more robustly maintained. .
[0026]
Further, when the detachable unit 23 is removed from the fixed unit 22, the middle portion of the upper elastic piece 24 is pressed by pressing the vertical intermediate portions of the two side surfaces 23 a and 23 b of the detachable unit 23 from the outside to the inside. The lower elastic piece 24 is elastically deformed downward, and the protrusions 24a are disengaged from the recesses 22b formed at two locations of the mounting portion 22a of the fixing unit 22, respectively. The detachable unit 23 can be detached from the fixed unit 22 by moving the detachable unit 23 to the back side from this state.
[0027]
In the above embodiment, the case where the panel separated unit structure according to the present invention is applied to an indicator lamp has been described. However, the present invention also applies to other panel electrical components such as an illuminated pushbutton switch. It can be implemented similarly.
[0028]
【The invention's effect】
The present invention can achieve the following effects.
[0029]
(1) In the detachable unit, the detachable side engaging portion formed on a part of the elastic piece supported on the two opposite side surfaces parallel to the front-rear direction of the fixed unit is formed on a part of the outer peripheral surface of the fixed unit mounting portion. By engaging the formed fixed-side engaging portion in a direction orthogonal to the front-rear direction of the fixed unit, the elastic pieces are elastically deformed by pressing the two side surfaces supporting the elastic pieces toward each other. Then, the detachable side engaging portion can be separated from the fixed side engaging portion to release the engaged state between them, and the detachable unit can be removed from the fixed unit very easily.
[0030]
(2) With the fixed-side engaging portion formed on the outer peripheral surface of the fixed unit mounting portion facing the inner peripheral surface of the mounting portion of the removable unit, the inserted portion of the removable unit is removed from the fixed unit mounting portion. When an external force is applied to the detachable unit mounted on the fixed unit by fitting, the formation position of the fixed-side engaging portion on the outer peripheral surface of the fixed unit mounting portion is set to the inner peripheral surface of the detachable unit inserting portion. It can be made to contact. As a result, even when an external force is applied to the detachable unit, the direction in which the engagement state between the detachable side engaging portion and the fixed side engaging portion is released from the mounting portion of the fixed unit to the elastic piece of the detachable unit. It is possible to prevent the pressing force from acting, and it is possible to reliably prevent the detachable unit from being accidentally dropped from the fixed unit.
[0031]
(3) By projecting a hole in the front-rear direction from a part of the elastic piece on which the detachable side engaging part is formed to the outside of the outer peripheral part of the detachable unit, it is sufficient on the outside of the two side surfaces that support the elastic piece. Even when there is no space, the detachable side engaging portion can be easily moved in a direction to release the engaged state with the fixed side engaging portion via a general-purpose tool inserted into the hole from the back of the detachable unit. The detachable unit can be easily detached from the fixed unit.
[Brief description of the drawings]
FIG. 1 is a front view of a detachable unit in a display lamp to which a panel separation unit structure according to an embodiment of the present invention is applied, a side view of a fixed unit and a main part of the detachable unit, and a mounting state between the fixed unit and the detachable unit. It is side sectional drawing of the principal part which shows these, and a front view which shows the deformation | transformation state of the detachable unit at the time of removing from a fixed unit.
FIG. 2 is a rear perspective view for explaining the operation when the detachable unit is removed from the fixed unit in the indicator lamp.
FIG. 3 is a front view of an attaching / detaching unit of an indicator lamp to which a panel separation type unit structure according to another embodiment of the present invention is applied, and a side view of a main part of the fixing unit and the attaching / detaching unit.
FIG. 4 is a diagram for explaining a conventional panel separation unit structure and its operation.
FIG. 5 is a diagram for explaining another conventional separated unit structure for a panel and its operation.
[Explanation of symbols]
1,21-indicator lamp 2,22-fixing unit 2a, 22a-mounting part 2b, 22b-recessed part (fixed side engaging part)
3, 23-Removable units 3a, 3b, 23a, 23b-side surfaces 4, 24-elastic pieces 4a, 24a-protrusions (mounting side engaging portions)
4b, 24b-hole 5-insertion hole (insertion part)

Claims (3)

In the separation-type unit structure for a panel, including a fixed unit fixed to the panel, and a detachable unit that is detachably fitted in the front-rear direction with respect to the mounting portion protruding to the back side of the fixed unit.
The both ends of the flat elastic piece are integrated into the upper part of the two side surfaces exposed to the outside of the detachable unit and the two side surfaces facing each other parallel to the front-rear direction of the fixed unit;
At the center of the lower surface of the elastic piece, a detachable side engaging portion that engages downward with a fixed side engaging portion formed on a part of the outer peripheral surface of the mounting portion of the fixed unit is formed,
The engagement state of the detachable side engaging portion with respect to the fixed side engaging portion is released by elastic deformation upward of the central portion of the elastic piece when the two side surfaces are pressed in directions close to each other. Features a separate unit structure for panels. 2. The panel separation type unit according to claim 1, wherein the detachable unit has a fitting portion whose inner peripheral surface faces at least a position where the fixed side engaging portion is formed on the outer peripheral surface of the mounting portion of the fixed unit. Construction. 3. The panel separation type unit structure according to claim 1, wherein the detachable unit is formed with a hole in the front-rear direction protruding outside the outer peripheral portion of the detachable unit in a part of the elastic piece.

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