JPS6244392Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a hollow chamber recessed in a case of an electronic device for storing electronic equipment, and more particularly to an opening/closing mechanism for a lid provided in an opening of the hollow chamber so as to be openable and closable.

The opening of this type of hollow chamber has a small area compared to the area of the front panel of the case, and therefore the lid for closing the opening also has a small area. on the other hand,
The knob for opening and closing operations must have a predetermined size so that it can be picked with the fingertips. Therefore, if such a large knob is provided on the front of a small lid, there is a problem in that the appearance of the lid portion becomes extremely poor. However, there is a problem in that if the knob is removed, it becomes extremely difficult to open the lid.

Therefore, the purpose of the present invention is to solve both of the above problems at the same time, and the lid can be opened easily and safely even without a knob on the lid, and the lid can be opened easily and safely when the lid is opened. To provide an opening/closing mechanism for a lid of a hollow chamber which has an extremely simple structure and has excellent practicality, with the object of providing a device that can be stored along the upper wall of a hollow chamber. The purpose is to

The drawings showing the embodiments of the present application will be described below. In FIG. 1, numeral 1 indicates a case of an electronic device, and numeral 2 indicates a front panel thereof, which is equipped with any known switches, meters, lamps, terminals, etc. as shown in the figure. Reference numeral 3 indicates a lid provided on the front panel 2 so as to be openable and closable, and is made of a synthetic resin material, for example. Note that this lid 3 may be disposed on the rear surface, side surface, etc. of the case 1 in some cases.

Next, the portion where the lid 3 is provided will be explained in more detail with reference to FIGS. 2 to 7.
Reference numeral 4 indicates a box-shaped inner frame, which is usually made of synthetic resin material. Note that this may be formed of a metal material. Further, this inner frame body 4 is fixed to the back surface of the front panel 2 with mounting pieces 5 and mounting screws 6. In this inner frame body 4, 7 is an upper wall, 8 is a lower wall, 9,
Reference numeral 9 indicates a side wall, and reference numeral 10 indicates a rear wall, each of which has a concave shape with a hollow chamber 11 therein as shown.
Moreover, the opening is the opening 1 in the front panel 2.
2, which serves as the opening of the hollow chamber 11. Next, 13, etc. indicate electronic equipment (for example, a switch, a volume control, etc.) attached to the back wall 10 of the inner frame body 4, and 14, etc. indicate a knob attached to the electronic equipment 13. Reference numeral 15 indicates a stopper projecting from the lower wall 8. Next, reference numeral 16 indicates a guide groove formed above the side walls 9, 9, which communicates with the upper and lower guide grooves 17 extending vertically near the opening 12, as shown in FIGS. 5 to 7. Moreover, it consists of a depth guide groove 18 extending in the depth direction near the top wall 7. Next, 19 indicates a receiving piece, and FIGS. 5 to 7
As clearly shown in the figure, it is formed to be short and small so as to protrude from the back wall 10 near the side wall 9. This receiving piece 19
, 20 is a bulge formed at the tip thereof;
Reference numeral 21 indicates a press-fitting portion formed in a bulging shape at the base.
In addition, when the receiving pieces 19 are normally provided near the side walls as described above, they are provided on both side walls 9. Further, 22 indicates an insertion space for the lid 3. Next, at both ends of the lid 3, 2
Reference numeral 3 denotes a support piece integrally formed to protrude from the back surface 2b side, and 24 denotes an engagement protrusion integrally formed to protrude outward from the support piece 23. In assembling the lid 3, the elasticity of the plastic is utilized to engage the engaging protrusion 24 within the guide groove 16.

First, the operation for opening the lid 3 in the above-mentioned configuration will be explained. As shown in FIG. 2, push the upper part 3c of the surface 3a of the lid 3 toward the inner frame body with a fingertip, for example, the index finger 26, and use another finger, for example, the thumb 27.
Lift the lower end 3 of the lid 3 upwards. Then, first, the lid 3 tilts about the engagement protrusion 24 as shown by the two-dot chain line in FIG. Then, its upper end portion 3' abuts against the bulging portion 20. When the lower end 3 is further lifted in this state, the side end of the upper end 3' of the lid 3 is guided by the bulge 20 and the lower surface of the upper wall 7 and enters the insertion space 22. Further, the engaging protrusion 24 rises along the vertical guide groove 17 and then moves rearward along the depth guide groove 18. As a result, the entire lid 3 fits under the upper wall 7 along the upper wall 7 as shown in FIG. In this inserted state, the lid 3 is approximately parallel to the lower surface of the upper wall 7, as is clear from FIG. Further, the upper end portion 3' of the lid 3 is held in a fixed state by abutting against the upper wall 7 by the press-fitting portion 21, and the intermediate portion 3'' is supported by the bulging portion 20.

Next, when closing the lid 3, in the state shown in FIG.
Hook as shown. Then, pull out the lower end of the lid 3 toward you. Then, contrary to the case of opening the lid, the engaging protrusion 24 moves along the depth guide groove 18 and then along the upper and lower guide grooves 17, passing through the state indicated by the two-dot chain line in FIG. It is in a closed state as shown by the solid line. In this state, the lower end 3 of the lid comes into contact with the stopper piece 15, and the lid 3 is prevented from sinking into the hollow chamber 11.

Next, FIGS. 8 and 9 show different embodiments of the present invention, in which the guide groove 16e is formed in an arc shape with elements of the upper and lower guide grooves and elements of the depth guide groove simultaneously in each part. This shows an example in which the engaging protrusion 24e
is provided on the side end surface of the lid 3e at a position that is not exposed to the front side of the front panel 2e (a position inside the lid surface), so that the engaging protrusion 24e gradually moves in the depth direction at the same time as it rises within the groove 16e. It is set as. In this example, the inner frame 4e is fitted into the opening 12e of the front panel 2e as shown in FIG. 9. Furthermore, in this example, a locking protrusion 30 is provided at the lower end 3e of the lid 3e, and an engaging recess 31 that engages with the protrusion 30 is provided at a position facing the protrusion 30 on the inner frame body 4e. be. Further, the receiving piece 19e is formed separately from the inner frame body 4e, and is fixed to the inner frame body 4e by any adhesive means such as an adhesive. In addition, the parts that are considered to have the same or equivalent configuration as those in the previous figure in terms of function,
The alpha alphabet e is added to the same reference numerals as in the previous figure, and redundant explanations are omitted. (Furthermore, in the following figure, the same idea is given and the redundant explanation is omitted by adding an alphanumeric character f.) Next, Fig. 10 shows a further different embodiment of the present application, which is similar to the previous embodiment. In this example, the guide groove 16f is formed to have elements of the upper and lower guide grooves and elements of the depth guide groove at the same time in each part, and different from the example shown in FIG. 9, the guide groove 16f is formed in a straight line. This is an example. Further, in this example, the receiving piece 19f is formed to be flexible as shown in the figure, and the engaging protrusion 24f is formed in the guide groove 16.
When moving along the line f, the lid 3f is made movable.

As described above, this invention has the advantage that a specific electronic equipment 14 can be hidden with a small lid 3 from a large number of display bodies or operation members normally provided on the front panel 2 of an electronic device. can be,
As a result, it is possible to prevent erroneous operation of the specific electronic equipment 14, prevent convergence on the front panel, and provide a clean appearance.

Furthermore, even if the small lid 3 does not have an operating knob on its surface 3a, if you want to open the lid 3, push the top 3c of the small lid 3 toward the back of the case 1 with your index finger, for example. By this, the lid 3 is tilted around the engagement protrusions 24 provided at vertically intermediate positions on both ends of the lid 3, and the lower end 3 is tilted.
It has the feature that it can be made to protrude forward as a knob, and the lid can be easily opened and operated using the protruding knob. This means that
It is possible to eliminate the need for a knob on the surface of the small lid 3, and therefore, it is possible to prevent the lid 3 from being small and look very unsightly if there is a knob there, and to provide a good appearance. effective.

Moreover, even if the lid 3 is opened by pushing in the upper part 3c of the lid 3 as described above, and since the lid 3 is small, there is a high possibility that the upper part 3c will be pushed too far. If the lid 3 is pushed too far, the pushed-in upper end 3' of the lid 3 will come into contact with the catch piece 19, stopping the excessive pushing, and the forefinger may be inserted too far, causing injury to the fingertips and nails. It has the effect of preventing this from happening.

Moreover, as described above, the lid 3 supports the lid at an intermediate position in the vertical direction so that when the upper part 3c is pushed in, the lower end 3 protrudes forward. Receptacle piece 19
However, since the guide groove 16 is provided in the side wall 9 of the inner frame body 4 and the fulcrum of the lid 3, that is, the engagement protrusion 24 is located therein, when the lid 3 is completely opened, By lifting the lower end 3 of the lid 3, the engaging protrusion 24 moves upward along the groove 16 and moves to the rear, and as it moves, the lid 3 is moved regardless of the presence of the receiving piece 19. It has the advantage that it can be stored at a position along the upper wall 7. Moreover, even with such a configuration that allows easy operation, the lid 3 can be placed along the upper wall 7 of the hollow chamber 11, so that, for example, dust accumulated on the upper surface of the lower wall 8 of the hollow chamber can be removed. Even when wiping off dirt, etc., it has the advantage that it can be quickly wiped off without worrying about the presence of the lid 3, and a clean state can always be maintained.

Furthermore, since the lid 3 fits above the hollow chamber 11, electronic equipment can be attached to the lower wall 8, which has the effect of increasing the possibility of additionally installing electronic equipment.

Furthermore, even though the lid 3 provides the above-mentioned convenience, the lid 3 simply has engagement protrusions 2 on both sides thereof.
4, it has a structural feature that allows it to be integrally formed by, for example, plastic molding means.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a perspective view of a case of an electronic device, FIGS. 2 and 3 are enlarged perspective views of main parts to explain the opening and closing operations of the lid, and FIG.
The figure is an enlarged sectional view taken along the - line in Fig. 1, and Figs. 5 and 6 show the closed and opened states of Fig. 1 -.
FIG. 7 is an enlarged cross-sectional view cut along the line, and FIG. 7 is a perspective view showing the lid facing away from the hollow chamber.
Figures 8 and 9 show different examples.
The figures are similar to those in FIG. 7, FIG. 9 is a vertical cross-sectional view with the lid closed, and FIG. 10 is a vertical cross-sectional view showing a further different example. DESCRIPTION OF SYMBOLS 1... Case, 11... Hollow chamber, 13... Electronic equipment, 3... Lid, 24... Engaging protrusion, 16...
Guide groove, 17...Upper and lower guide groove, 18...Depth guide groove, 19...Receiving piece.

Claims (1)

[Scope of utility model registration request] A part of the front panel of the case is provided with an opening having a relatively small area compared to the front panel, and the front panel has a box-shaped inner frame body that is open at the front and has a hollow space inside. The opening of the panel and the opening of the inner frame are attached so that they overlap, and the hollow chamber is equipped with electronic equipment, while the opening of the front panel is equipped with a comparative device for closing the opening. In a case of an electronic device that is equipped with a small-area lid that can be opened and closed freely, engaging protrusions are provided at inner positions at both ends of the lid, and engaging protrusions are provided at intermediate positions in the vertical direction of the lid, while the inner frame Guide grooves are provided on both side walls of the body, and the upper and lower ends are located near the opening and at a midway point in the vertical direction, and at a position above and further back from that position, respectively. makes the engaging protrusion of the lid rotatable and movable along the groove,
Moreover, the position of the guide groove is such that when the engagement protrusion is located at the lower end of the groove, the lid closes the opening of the front panel, and in that position, the lid is closed by pushing the top of the lid toward the hollow chamber. The lower end of the lid protrudes forward by tilting around the engaging protrusion, and from this state, the engaging protrusion follows the groove by lifting the lower end while rotating the lid around the engaging protrusion. The guide groove is provided at a position where the lid is in a substantially horizontal state and follows the upper wall of the inner frame when the engaging protrusion reaches the upper end of the groove. A receiving piece is provided at the upper position, and the position of the receiving piece in the depth direction is such that when the upper part of the lid is pushed toward the hollow chamber with the engaging protrusion located at the lower end of the guide groove. The upper end of the lid is set at a position that receives the upper part of the lid and prevents it from being pushed in excessively, and the vertical position is such that when the lid is rotated and lifted, the upper end of the lid is placed along the upper wall of the inner frame. The lid is moved rearward so that the lid is aligned with the upper wall.The lid is located at a position that separates the upper wall from the gap so as not to impede movement of the lid, and the engaging protrusion guides the lower wall of the inner frame. A hollow space in a case of an electronic device, characterized in that a stopper is provided to prevent the lower end of the lid from moving to the back when the lid is located at the lower end of the groove and blocks the opening of the front panel. Chamber lid opening/closing mechanism.