JP2731782B2 - Panel insertion / extraction structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a panel insertion / extraction structure, and more particularly to a panel insertion / extraction structure in a base station communication device using an ejector.

[0002]

2. Description of the Related Art As an example of a conventional panel insertion / extraction structure of this type, there is a "printed wiring board insertion / extraction assist device in an electronic device" described in Japanese Utility Model Laid-Open No. 3-101590.

FIG. 5 is a perspective view of a conventional electronic device incorporating a printed wiring board insertion / extraction assist device, partially broken away, and FIG. 6 is a plan view for explaining the insertion / extraction operation in FIG.
Both figures are equivalent to those described in the above publication.

[0005] Referring to FIGS. 5 and 6, in this conventional example, a connector panel 15 having a front plate or the like attached to a panel 14 by an ejector 16 is inserted and removed along a guide rail 13. In the figure, the connector 17b of the panel 14 is inserted into the connector 17a of the mother board 12. Then, the ejector 16 is hooked on the opening 18 provided at a predetermined position of the housing 11, and the plurality of connector panels 15 are inserted / extracted using the fulcrum 18 a of the opening 18 as a fulcrum using the principle of leverage. .

Further, regarding the rotation of the ejector 16,
The guide rail 13 and the opening 18 regulate the rotation.

[0006]

In this conventional electronic device, the ejector does not have a lock mechanism as a measure for preventing the panel from coming off due to vibration, and only the holding force of the connection connector when the panel is mounted on the housing. Therefore, there is a problem in that when the panel is vibrated, the panel is likely to jump out of the housing and open the electrical connection.

Further, when the mounting density is high, the clearance between the units in the vertical direction becomes narrow, and the mounting range is restricted by the columns of the frame for mounting the housing in the horizontal direction, so that the mounting range is restricted. When the ejector is rotated up, down, left, and right when mounting the device, there is a problem that it may be difficult to operate the ejector.

An object of the present invention is to provide a panel which solves the above-mentioned problems by enabling the operation of the ejector by rotating a knob and locking the rotation of the ejector by meshing gears. An object of the present invention is to provide an insertion / extraction structure.

[0009]

According to the present invention, there is provided a substantially three-month-shaped ejector in which a worm wheel having a mounting hole on a plane is integrally formed, an external thread is provided at one end and the external thread is provided at an end face thereof. A worm gear having a female thread on the center axis of the worm gear and the other end having a round bar shape;
A knob having a female screw that can be screwed to the male screw of the worm gear; anda gear box, wherein the worm gear is fitted to the worm wheel of the ejector within the gear box and attached to a housing, and one end of the worm gear is provided. A panel insertion / extraction structure is provided, wherein the male screw and the female screw of the knob are screwed.

[0010] Preferably, the knob is screwed to the female screw at one end of the worm gear with a mounting screw, and a part for preventing the worm gear from coming off the gear box is mounted near the other end of the worm gear. A characteristic panel insertion / extraction structure is obtained.

Further, the panel insertion / extraction structure is characterized in that the retaining component is an E-ring which can be combined with a groove cut along the circumference in the vicinity of the other end of the worm gear. can get.

[0012]

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

FIG. 1 is a perspective view of a housing of a base station communication device showing one embodiment of a panel insertion / extraction structure of the present invention.

FIG. 2A is a partially cutaway perspective view of the ejector portion in FIG. 1, FIG. 2B is a partially cutaway side view of the worm gear and FIG.
FIG. 2C is a perspective view of the ejector in FIG.

First, the configuration of the present embodiment will be described with reference to FIGS.

In the base station communication device of the present embodiment, as shown in FIG. 1, the panel 4 is guided by the guide rail 3 of the housing 1 and is inserted in the direction shown by the arrow by operating the knob of the ejector unit 50. The connector 4c of the panel 4 is inserted into the connector 2a of the mother board 2. The panel 4 is removed from the housing 1 by operating the knob of the ejector unit 50.

The ejector unit 50 according to the present embodiment comprises:
As shown in FIG. 2, the ejector 5 has a substantially three-month shape in which a worm wheel 5a having a mounting hole 5b on a plane is integrally formed, and has an external thread 7a at one end and an end face on the center axis of the external thread 7a. A worm gear 7 having a female screw 7b at the other end and having a round bar shape at the other end and having a groove 7c cut along the circumference in the vicinity thereof, and a female screw screwed to the male screw 7a of the worm gear 7 The gear box 10 includes a knob 8 having a mounting hole 8a in the head and a gear box 10, and a mounting tool 6 for mounting the ejector 5 to the gear box 10.

The rear surface of the gear box 10 (FIG. 2)
(A), the end of the round bar of the worm gear 7 is inserted into the mounting hole 10b provided in the left side surface, and the mounting tool 6 is further inserted into the mounting hole 5b to mount the ejector 5 and the worm gear 7 and the worm wheel 5a. After screwing the female screw 8c of the knob 8 to the male screw 7a of the worm gear 7, the knob 8 is screwed to the female screw 7b of the end face of the worm gear 7.
The knob 8 is attached to the head with a mounting screw 8b through a mounting hole 8a.
Attach. Thereafter, the E-ring 9 is inserted into the groove 7c provided near the end face of the worm gear 7 to prevent the worm gear 7 from coming off.

The retaining of the worm gear is not limited to the E-ring. For example, a small hole parallel to the end surface may be formed near the end surface of the worm gear 7 and a split pin may be inserted into the small hole.

Next, the operation of this embodiment will be described with reference to FIGS.
This will be described in detail with reference to FIG.

FIGS. 3A and 3B are partial side views showing an operation state of the embodiment shown in FIG. 1. FIG. 3A shows a locked state when the panel is inserted, and FIG. 3B shows a unlocked state when the panel is removed. FIG. 4 is a view of the panel in FIG.

When the panel 4 is mounted on the housing, the end of the ejector 5 is hooked on the opening 4b provided in the front plate 4a of the panel 4 as shown in FIG. 3A, and the knob 8 is rotated clockwise. Rotation of the worm gear 7 and the worm wheel 5
a, which is rotated to the left as shown by arrow B, and the ejector 5 is further rotated to move the panel 4 to the left, and the panel 4 is mounted on the housing.

When the panel 4 is mounted, the opening 4
3B, the end of the ejector 5 is hooked as shown in FIG. 3B, and when the knob 8 is rotated to the left, the rotation of the worm gear 7 is transmitted to the worm wheel 5a and is rotated rightward as shown by the arrow C. The ejector 5 rotates to move the panel 4 rightward, and the panel 4 is removed from the housing.

As described above, in this embodiment, the ejector 5 can be moved in the left-right direction by rotating the knob 8, so that the panel 4 can be inserted into and removed from the housing 1.

Further, since the gears of the worm gear 7 and the worm wheel 5a are meshed in the gear box 10, the rotation of the ejector 5 is locked unless the knob 8 is rotated. Therefore, the rotation of the ejector does not occur due to the vibration.

[0026]

As described above, according to the present invention, there is provided a substantially three-month-shaped ejector in which a worm wheel having a mounting hole on a plane is integrally formed, a male screw at one end and a center of the male screw at the end face. A worm gear having a female screw on a shaft and having a round bar shape at the other end; a knob having a female screw which can be screwed to the male screw of the worm gear; and a gear box, and a worm wheel of an ejector in the gear box. The worm gear is attached to the housing by meshing the worm gear, and a male screw at one end of the worm gear and a female screw at the knob are screwed. The worm gear is equipped with parts to prevent it from coming out of the gear box near the end to further prevent it from coming off. Use components that can be combined in a groove cut along the circumference in the vicinity of the other end portion of the worm gear E
Since the ring is used, the ejector is rotated by turning the knob to insert and remove the panel, so the work area required when mounting the panel is reduced, and interference such as touching the top, bottom, left and right panels during this work occurs It has the effect that it does not.

Further, since the rotation of the ejector is controlled by the engagement between the worm gear and the worm wheel, the panel is prevented from coming off due to vibration, and there is an effect that the trouble of opening the electrical connection is eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a housing of a base station communication device showing one embodiment of a panel insertion / extraction structure of the present invention.

2A is a partially cutaway perspective view of an ejector portion in FIG. 1, FIG. 2B is a partially cutaway side view of a worm gear and a side sectional view of a knob in FIG. 1A, and FIG. 3 is a perspective view of the ejector in FIG.

FIGS. 3A and 3B are partial side views showing an operation state of the embodiment shown in FIG. 1, wherein FIG. 3A shows a locked state when a panel is inserted;
(B) shows the unlocked state when the panel is removed.

FIG. 4 is a view of the panel in FIG.

FIG. 5 is a perspective view of an electronic device incorporating a conventional printed wiring board insertion / extraction assist device, with a partial cutaway.

FIG. 6 is a plan view for explaining the insertion / extraction operation in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 11 Housing 2, 12 Mother board 2a, 4c, 17a, 17b Connector 3, 13 Guide rail 3a Slit 4, 14 Panel 4a Front plate 4b, 18 Opening 5, 16 Ejector 5a Worm wheel 5b, 8a, 10b Mounting hole 6 Mounting Tool 7 Worm Gear 7a Male Thread 7b, 8c Female Thread 7c Groove 8 Knob 8b, 10a Mounting Screw 9 E-Ring 10 Gear Box 15 Connector Panel 18a Support Point 19 Screw Shaft 50 Ejector

Claims (3)

(57) [Claims] 1. A substantially three-month ejector integrally formed with a worm wheel having a mounting hole on a plane, an end having a male screw, and an end face having a female screw on a central axis of the male screw; The other end includes a worm gear having a round bar shape, a knob having a female screw that can be screwed with the male screw of the worm gear, and a gear box.The worm gear is mounted on the worm wheel of the ejector in the gear box. A panel insertion / extraction structure wherein the male screw at one end of the worm gear and the female screw at the knob are screwed together. 2. The method according to claim 1, wherein the knob is screwed to the female screw at one end of the worm gear with a mounting screw, and a part for preventing the worm gear from falling out of the gear box is mounted near the other end of the worm gear. The panel insertion / extraction structure according to claim 1, characterized in that: 3. The E-ring according to claim 2, wherein the retaining component is an E-ring that can be combined with a groove cut along the circumference near the other end of the worm gear.
Panel insertion / extraction structure as described.