JP2010093367A - Device base attaching structure for electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To readily attach a device base for attaching a device body to a plate member to be installed, such as a ceiling plate material or a wall surface plate material. <P>SOLUTION: The storage part 3D of the device base 3 includes an annular flange part 3A, disposed on the outer side of the ceiling plate material S and a storage part 3D, connected to the inner peripheral edge side of the flange part 3A and extended to the inner side, passing through a through-hole S. For the upper-surface wall part 3C of the storage part 3D, two screw rod members 32 passing through from the outer side to the inner side of the ceiling plate material S are provided, and one end part of the horizontal plate part 31A of an attaching member 31 is screwed to the screw part of the screw rod member 32. To the other end part of the horizontal plate part 31A, a vertical columnar part 31B, extending in parallel with a side-face wall part 3B to the side of the flange part 3A is connected. By clamping the ceiling plate material S, between the flange part 3A of the device base 3 and the lower end of the vertical column part 31B of the attaching member 31, the device base 3 is attached to the ceiling plate material S. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a device base mounting structure for an electronic device such as an antenna device.

  Conventionally, an electronic device such as an antenna device has been used to hook the antenna body to the antenna base with a hooking means and to tighten the antenna body with a screw for the purpose of improving workability and safety in attaching and removing operations. Is known that is fixed to the antenna base (see, for example, Patent Document 1).

  In addition, a screwing portion that is screwed to each other is formed on the antenna body and the antenna cover, and the screwing portions are screwed together with the antenna body and the antenna cover sandwiching a construction surface such as a ceiling surface or a wall surface. There is also known an antenna main body and an antenna cover that are attached to a construction surface by going on (see, for example, Patent Document 2).

In addition, a locking piece is provided on the lower surface of the base fixed to the installation surface such as the ceiling surface, and a hooking metal fitting is provided on the ground plate serving as the upper surface of the cover, and the hooking metal fitting is detachably engaged with the locking piece It is also known to attach the antenna body to the base (see, for example, Patent Document 3).
JP-A-9-238011 (paragraph 0008) JP-A-8-330822 (paragraph 0025)

  Since the structures described in Patent Document 1 and Patent Document 2 have a structure in which the base is directly fixed to the installation surface with screws, the mounting work is complicated. In other words, it must be fixed with screws while holding the base, which is difficult for a single worker.

  The present invention provides a device base mounting structure for an electronic device in which a device base for mounting a device main body of the electronic device can be easily mounted on an installed plate material such as a ceiling plate material or a wall surface plate material even by one worker.

  The invention of claim 1 is a device base mounting structure of an electronic device that is mounted by inserting a device main body into the storage portion of a device base having a hollow storage portion. The device base is attached to the through hole, and the housing portion of the device base is connected to the annular flange portion disposed on the outer side of the plate member to be installed and the inner peripheral edge side of the flange portion and penetrates the through hole. A cylindrical side wall portion extending inward and an upper surface wall portion provided on the upper side of the side wall portion, and penetrates the upper surface wall portion from the outside to the inside of the installation plate member. At least two screw rod members are provided, and an attachment member is screwed to a screw portion of each screw rod member, and each of the attachment members is screwed to one end portion of the screw rod member. The horizontal plate and the horizontal plate A vertical column that is connected to the end and extends in parallel with the side wall toward the flange, and sandwiches the plate to be installed between the lower end of the vertical column of each mounting member and the flange Thus, the device base is attached to the plate member to be installed. Here, at least two screw rod members and attachment members may be provided, but three or more may be provided depending on the size of the electronic device.

  In this way, by providing at least two mounting members on the equipment base, the equipment base storage portion is inserted into the through hole of the plate member to be installed, and one operator holds the equipment base while holding the equipment base. The vertical column portion of each mounting member is moved onto the flange portion by rotating the mounting rod, and the screw rod member is further rotated in a state where the mounting member is not rotated at the moved position, thereby It is possible to easily attach the device base to the installation plate material by sandwiching the installation plate material between the flange portion of the member and the lower end of the vertical column portion. Here, the state in which each mounting member is prevented from rotating is that when the operator restricts the rotation from using a hand or a tool, and a part of the mounting member contacts a part of the equipment base. The case where it is restricted so that it does not rotate is included.

  Since the installation plate material is sandwiched between the flange portion of the mounting member and the lower end of the vertical column portion, it can be easily installed by one worker regardless of the plate thickness of the installation plate material. Since the flange portion and the device main body can only be seen on the outside of the plate material to be installed, the appearance (exposed portion) is excellent.

  According to a second aspect of the present invention, the upper surface wall portion of the storage portion is provided with a restriction portion that contacts the attachment member and restricts the rotation of the attachment member toward the opposite side of the flange portion. It is desirable that

  In this way, when the vertical rod portion of the mounting member is moved to a position facing the flange portion by the rotation of the screw rod member, a part of the mounting member comes into contact with the restricting portion, and further rotation is restricted. , Held in that position. Then, by further rotating the screw rod member, the mounting member moves to the flange portion side, and finally the plate member to be installed is sandwiched between the flange portion and the lower end of the vertical column portion. Therefore, by providing the restricting portion on the upper surface wall portion of the storage portion, the vertical column portion of the mounting member can be moved to a position facing the flange portion and held at that position simply by rotating the screw rod member. it can.

  According to a third aspect of the present invention, it is desirable that the horizontal plate portion has a movable boss portion formed at a portion where the screw rod member is screwed.

  In this way, since the length of the female screw portion is increased by providing the movable boss portion, compared with the case where the female screw portion is formed only on the horizontal plate portion, the screw is engaged when the mounting member is moving. As a result, the length of the portion is increased and stable movement is realized.

  According to a fourth aspect of the present invention, it is desirable that a fixed boss portion is formed in a portion through which the screw rod member is inserted in the upper surface wall portion of the storage portion.

  In this way, by providing the fixed boss portion on the upper surface wall portion of the storage portion, the proportion of the portion where the screw rod member engages (inserts) when the attachment member is moving increases, and stable attachment is achieved. The movement of the member is realized.

  Since the present invention is configured as described above, by installing at least two mounting members that can be moved by the rotation of the screw rod member on the equipment base, the storage portion is inserted into the through hole of the plate member to be installed, and the mounting is performed. The plate member to be installed between the flange portion of the mounting member and the lower end of the vertical column portion by rotating the screw rod member in a state where the vertical column portion of the member is positioned on the flange portion and held in that position. And the equipment base can be attached to the plate material to be installed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is a plan view of an antenna device (electronic apparatus) according to an embodiment of the present invention, FIG. 2 is a bottom view thereof, FIG. 3 is a side view thereof, FIG. 4 is a perspective view thereof, and FIG. It is sectional drawing in the -V line.

  As shown in FIGS. 1 to 3, the antenna device 1 (electronic device) includes an antenna body 2 (device body) and a device base 3 (device base) that holds the antenna body 2. In this embodiment, the apparatus base 3 is attached and fixed to the ceiling board material S, which is an installation board material, using two attachment members 31 and a screw rod member 32 having a reverse L-shape in a side view. The attachment member 31 is attached to the apparatus base 3 using a screw rod member 32, and sandwiches the ceiling plate material S between the attachment member 31 and the apparatus base 3 (flange portion 3A) as will be described later. Thus, the apparatus base 3 can be attached to the ceiling plate material S.

  As shown in FIG. 6, the antenna body 2 has a hollow disk-shaped casing 11 (equipment casing). The casing 11 includes a hollow upper member 11A having a cylindrical side plate portion 11Aa and an upper surface plate portion 11Ab that closes an upper portion of the side plate portion 11Aa, and a disc that closes a lower opening of the side plate portion 11Aa. A lower member 11B having a shape. The lower member 11B has an outer diameter larger than the outer diameter of the side plate portion 11Aa, and an annular engagement groove portion 11Ba is formed in the vicinity of the upper outer peripheral edge. Then, the lower edge of the side plate 11Aa of the upper member 11A is fitted into the engagement groove 11Ba of the lower member 11B, and the upper member 11A and the lower member 11B are connected using the three screws 12 in this state. The casing 11 is configured by being integrally joined. Various electrical components such as an antenna element substrate 13, a power supply substrate 14, a substrate base plate 15, a ground plate 16, and a coaxial cable 17 are accommodated in the casing 11 in a predetermined positional relationship.

  In addition, a pair of engaging protrusions 11Aaa and 11Aaa extending in the circumferential direction are formed on the outer peripheral surface of the side plate portion 11Aa. The pair of engaging protrusions 11Aaa and 11Aaa are formed in a positional relationship facing each other (that is, 180 ° angular interval) in the diametrical direction. A through hole 11Aba for leading the coaxial cable 17 to the outside is provided in the upper part of the upper surface plate portion 11Ab.

  As shown in FIGS. 7 and 8, the device base 3 has a so-called hat shape, an annular flange portion 3A positioned on the lower side (outside) of the ceiling plate material S, and the flange portion 3A. A cylindrical side wall portion 3B that is connected to the inner peripheral edge side and extends upward (inside) through the through hole S1 of the ceiling plate material S, and an upper surface wall portion 3C that is provided at the upper end (upper side) of the side wall portion 3B. Have The side wall portion 3B and the upper surface wall portion 3C constitute a storage portion 3D that stores the portion of the upper member 11A of the casing 11 (antenna body 2).

  Two screw rod members 32 are inserted through the upper surface wall 3C of the housing 3D. Each threaded rod member 32 is threaded with an attachment member 31 on the upper side of the upper surface wall 3 </ b> C. When the threaded rod member 32 is rotated, the attachment member 31 is also rotated. The mounting member 31 includes a horizontal plate portion 31A in which a screw portion of the screw rod member 32 is screwed to one end portion, and a side wall portion 3B connected to the other end portion of the horizontal plate portion 31A toward the flange portion 3A side. And a vertical column portion 31 </ b> B extending in parallel. The horizontal plate portion 31A is formed such that a movable boss portion 31Aa (female screw portion) is formed at a portion where the screw rod member 32 is screwed, and a length of the portion where the screw rod member 32 is screwed is increased. ing.

  A pair of projecting pieces 3Cc (regulators) that contact the attachment member 31 and restrict the rotation of the attachment member 31 are located on the upper edge, that is, the flange portion 3A. It protrudes on the opposite side). In addition, the fixed boss | hub part 3Cd (insertion hole) is formed facing the diameter direction in the part in which the screw rod member 32 is penetrated, and the length (thickness) of the part in which the screw rod member 32 is penetrated becomes long. It is formed as follows.

  Therefore, when a part of the attachment member 31 comes into contact with the protruding piece 3 </ b> Cc due to the rotation of the attachment member 31 by the rotation of the screw rod member 32, the rotation of the attachment member 31 is restricted. However, it moves in the axial direction of the screw rod member 32 without rotating. Finally, the device base 3 is attached and fixed to the ceiling plate material S by sandwiching the ceiling plate material S between the lower end of the vertical column portion 31B of the attachment member 31 and the flange portion 3A.

  On the other hand, the side wall portion 3B of the storage portion 3D has an inner diameter that is slightly larger than the outer diameter of the side plate portion 11Aa of the upper member 11A (casing 11), except for the vicinity of the lower edge portion, and the upper side in the side wall portion 3B. The member 11A can be inserted or stored without difficulty. In the vicinity of the lower edge portion of the side wall portion 3B, that is, in the vicinity of the connection portion with the flange portion 3A, the antenna body 2 is resisted against the elastic force of the elastic tongue-shaped piece 3Ca described later when the antenna body 2 is attached and detached. When lifting, an engaging recess 3Ba is formed in which the peripheral portion of the lower member 11B (casing 11) is accommodated. In a state where the antenna body 2 is lifted and the antenna body 2 is housed in the engagement recess 3Ba, the engagement protrusion 11Aaa hits the upper side 21A of the engaged hole 21 and is restricted by the restriction protrusion 21c. Instead, it can move from the first portion 21a to the second portion 21b or from the second portion 21b to the first portion 21a. In order to be able to move in this way, in the mounting state shown in FIG. 3, a gap ΔL is formed between the upper surface of the engagement recess 3Ba and the upper surface of the lower member 11B, and this gap ΔL is The vertical length H2 of the second portion 21b and the gap ΔH (see FIG. 7) formed by the restricting projection 21c, that is, the length (H2−ΔH) is longer.

  Then, a pair of engaged hole portions 21 are formed in the side wall portion 3B in a positional relationship facing each other in the diametrical direction (ie, 180 ° angular interval). Therefore, the engaged hole portion 21 and the engaging protrusion 11Aaa are in a corresponding positional relationship, and the engaging protrusion 11Aaa is engaged with the engaged hole portion 21 in a detachable manner.

  The engaged hole portion 21 is formed to communicate with a first portion 21a having a long vertical length H1 in the circumferential direction on the upper side of the first portion 21a, and a vertical length H2 is a first portion 21a. Shorter second portion 21b. On the first portion 21a side of the second portion 21b, a restricting protrusion 21c that restricts inadvertent movement from the second portion 21b to the first portion 21a is provided from the lower side portion 21B side to the upper side portion 21A side. It is provided so as to protrude. The first and second portions 21a and 21b are formed such that the circumferential length (width) thereof is substantially equal to the circumferential length of the engaging projection 11Aaa, and the gap ΔH formed by the restricting projection 21c is the second portion. Although it is shorter than the vertical length H2 of 21b, it is substantially equal to or slightly longer than the height H3 of the engaging projection 11Aaa. Therefore, the vertical lengths H1 and H2 of the first and second portions 21a and 21b of the engaged hole 21 are sufficiently larger than the height H3 of the engaging protrusion 11Aaa.

  Therefore, the engaged hole portion 21 is hard to come off by rotating the antenna main body 2 to a predetermined position in the apparatus base 3 and rotating it by a predetermined angle (for example, about 20 °) about the vertical axis. Functions as a side hole that can be attached. Here, the side wall portion 3B forming the first and second portions 21a and 21b is cylindrical, but it is also possible to have a polygonal cylindrical shape that can rotate relative to the side plate portion 11Aa using resin elasticity. is there. In this case, the first and second portions are formed on the adjacent side wall portions of the side wall portions, respectively, so that the relative rotation does not occur unless an operator acts on the relative rotation force, thereby restricting the protrusion 21c. Can be omitted.

  A plurality of elastic tongue-like pieces 3Ca are integrally provided on the upper surface wall 3C at equal angular intervals in the circumferential direction. Each elastic tongue-shaped piece 3Ca is formed in a cut-and-raised shape with a base end portion connected to the upper surface wall portion 3C and a distal end portion extending inward of the storage portion, and the device base 3 is formed of a synthetic resin material. The elastic tongue-shaped piece 3Ca has a certain elastic force (resin elasticity). Therefore, when the antenna main body 2 is lifted and the engaging protrusion 11Aaa is engaged with the engaged hole 21 and attached, the elastic tongue-like piece 3Ca is flexed appropriately and the upper part of the antenna main body 2 (upper By making contact with the surface of the face plate portion 11Ab), a function of exerting an appropriate pressure on the surface from the upper side is exhibited.

  When the antenna body 2 is attached to the apparatus base 3, the engagement protrusion 11Aaa engages with the second portion 21b, and the antenna body 2 is balanced with respect to the apparatus base 3 by the plurality of elastic tongue-shaped pieces 3Ca. Since the antenna body 2 is relatively rotated with respect to the device base 3 by the restricting projection 21c, the engaging projection 11Aaa moves from the second portion 21b to the first portion 21a because the restricting projection 21c is pressed. Is regulated. In this case, the restricting projection 21c functions as a detent for the rotation of the antenna body 2.

  Therefore, the tip of the elastic tongue-shaped piece 3Ca is engaged with the lower side portion 21B even when the engaging protrusion 11Aaa is in contact with the lower side portion 21B of the engaged hole portion 21 (second portion 21b). It protrudes by a predetermined amount downward in the storage portion 3D so that a biasing force for pressing the protrusion 11Aaa can be applied.

  Then, the operation | work which attaches the antenna apparatus 1 to the ceiling board | plate material S is demonstrated.

  First, the storage portion 3D of the apparatus base 3 is inserted into the through hole S1 (see FIG. 5) of the ceiling plate material S, and is fixed so that only the flange portion 3A is positioned below the ceiling plate material S.

  For this purpose, first, as shown in FIGS. 9 to 11, the operator sets the storage portion 3D of the apparatus base 3 as a state in which the vertical column portion 31B of each mounting member 31 is positioned on the storage portion 3D. It is inserted into the through hole S1 of the ceiling plate material S. By this insertion, only the flange portion 3A can be placed under the ceiling plate material S.

  When the operator holds this state with one hand and rotates the screw rod member 32 with a tool (not shown) with the other hand, the mounting member 31 uses the axis of the screw rod member 32 as the rotation axis. The attachment member 31 and the screw rod member 32 rotate together, and as shown in FIGS. 12 and 13, the vertical column portion 31B rotates from the storage portion 3D to the flange portion 3A, and the attachment member 31 (vertical column Part of the portion 31B) contacts the protruding piece 3Cc, and further rotation is restricted on the flange portion 3A.

  As described above, when the rotation of the screw rod member 32 is continued in a state where the rotation of the mounting member 31 is restricted, the rotation of the mounting member 31 is restricted while maintaining the position on the flange portion 3A. Thus, it is displaced downward (flange portion 3A side) along the axial direction of the screw rod member 32. Finally, the ceiling plate material S is sandwiched and tightened between the lower end surface of the vertical column portion 31B of the mounting member 31 and the upper surface of the flange portion 3A (see FIGS. 3 and 5). Therefore, even one worker can easily attach and fix the device base 3 to the ceiling board material S.

  Further, in this case, by providing the movable boss portion 31Aa (internal thread portion), the length of the portion where the mounting member 31 and the screw rod member 32 are screwed is increased, and the fixed boss portion 3Cd (insertion hole) is provided. Since the ratio of the portion where the screw rod member 32 is engaged (inserted) is increased by providing, the attachment member 31 and the screw rod member 32 are prevented from being fluctuated when the attachment member 31 is moved. Is done. Therefore, since the screw rod member 32 is firmly supported in the vertical direction, stable movement of the attachment member 31 is realized at the time of attachment or the like.

  Then, the operator holds the lower member 11 </ b> B of the casing 11 of the antenna body 2 from the lower side with one hand, and the engagement protrusion 11 </ b> Aaa of the antenna body 2 is in the engaged hole 21 of the apparatus base 3. The antenna body 2 is lifted and inserted into the apparatus base 3 so as to have a corresponding positional relationship.

  In this state, the engaging projection 11Aaa is engaged and inserted into the first portion 21a of the engaged hole 21. At this time, since the first portion 21a has a sufficient length (height) in the vertical direction, the engaging protrusion 11Aaa is easily engaged with the first portion 21a.

  From the state in which the engaging protrusion 11Aaa is lifted and inserted into the first portion 21a of the engaged hole 21, the antenna body 2 is rotated by a predetermined angle (for example, about 20 °) about the vertical axis. Then, the engaging projection 11Aaa moves to the second portion 21b along the upper side portion 21A without being regulated by the regulating projection 21c. When moving to the second portion 21b, lifting (support) of the antenna body 2 by the operator is released.

  By this release, the engaging protrusion 11Aaa moves downward in the second portion 21b (engaged hole portion 21) by the elastic force of the elastic tongue-like piece 3Ca and is pressed to the lower side portion 21B side. In this state, the engaging protrusion 11Aaa is restricted from moving toward the first portion 21a by the restricting protrusion 21c, and the antenna body 2 is pressed downward by the elastic force of the elastic tongue-shaped piece 3Ca. Since the state where the mating protrusion 11Aaa is pressed against the lower side 21B side of the second portion 21b is maintained, rattling in the vertical direction is also suppressed.

  In the lifted state from the insertion as described above until the lift (support) of the antenna body 2 is released through the engagement, the elastic tongue-shaped piece 3Ca of the device base 3 is in elastic contact with the upper surface plate portion 11Ab of the antenna body 2. In addition, since a certain pressure is applied to the antenna body 2 from the upper side, the operator only needs to lightly support the lower member 11B from the lower side, so that an appropriate amount is provided between the lower member and the operator's hand. The frictional force acts and the position of the antenna body 2 is not shifted on the operator's hand, and the above-described insertion operation and rotation operation can be easily performed, and the attachment workability is excellent.

  The present invention is not limited to the embodiment described above, and various modifications can be made. For example, it can be changed as follows.

  (i) The fixed boss 3Cd of the upper surface wall 3C may be provided as necessary, and may be omitted. Further, instead of providing the fixed boss portion, the thickness of the upper surface wall portion may be increased.

  (ii) Although the movable boss portion is provided on the mounting member 31, the movable boss portion is omitted, and a screw hole (female screw portion) is formed in the horizontal plate portion 31A itself, or a nut is inserted into the horizontal plate portion 31A. It is also possible to use a female screw portion.

  (iii) In the above embodiment, two attachment members are provided, but three or more attachment members may be provided. For example, when three attachment members are provided, it is desirable to provide them at 120 ° intervals in the circumferential direction.

FIG. 1 is a plan view of an antenna device (electronic device) according to an embodiment of the present invention. It is the bottom view. It is the same side view. It is the same perspective view. It is sectional drawing in the VV line of FIG. It is a perspective view of an antenna main body. It is the perspective view which looked at the apparatus base from the side in the state which removed the attachment member. It is the perspective view which looked at the apparatus base from the lower side in the state which removed the attachment member. It is explanatory drawing of the procedure which attaches the said antenna apparatus to a ceiling board material. It is explanatory drawing of the procedure which attaches the said antenna apparatus to a ceiling board material. It is explanatory drawing of the procedure which attaches the said antenna apparatus to a ceiling board material. It is explanatory drawing of the procedure which attaches the said antenna apparatus to a ceiling board material. It is explanatory drawing of the procedure which attaches the said antenna apparatus to a ceiling board material.

Explanation of symbols

S Ceiling board material S1 Through hole 1 Antenna device (electronic equipment)
2 Antenna body (equipment body)
3 Device base (equipment base)
3A Flange part 3B Side wall part 3C Upper surface wall part 3Cc Projection piece part (regulation part)
3Cd fixed boss portion 3D storage portion 31 mounting member 31A horizontal plate portion 31Aa movable boss portion 31B vertical column portion 32 screw rod member

Claims (4)

A device base mounting structure for an electronic device to be mounted by inserting a device main body into the device base storage portion having a hollow storage portion,
The equipment base is attached to the through hole of the installation plate material such as a ceiling plate material or a wall plate material,
The device-based storage portion includes an annular flange portion disposed outside the plate member to be installed, and a cylindrical side wall portion that is connected to the inner peripheral edge side of the flange portion and extends inward through the through hole. And an upper surface wall portion provided on the upper side of the side wall portion, and at least two screw rod members penetrating from the outer side to the inner side of the plate member to be installed are provided to the upper surface wall portion, An attachment member is screwed to the thread portion of each screw rod member,
Each mounting member includes a horizontal plate portion in which a screw portion of the screw rod member is screwed to one end portion, and is connected to the other end portion of the horizontal plate portion and is parallel to the side wall portion toward the flange portion side. And a vertical column extending to
An apparatus base for an electronic device, wherein the apparatus base is attached to the installation plate material by sandwiching the installation plate material between a lower end of a vertical column portion of each attachment member and a flange portion. Mounting structure.
The upper surface wall portion of the storage portion is provided with a restriction portion that contacts the attachment member and restricts rotation of the attachment member toward the opposite side of the flange portion. 1. A device base mounting structure for an electronic device according to 1.
The apparatus base mounting structure for an electronic device according to claim 1, wherein the horizontal plate portion has a movable boss portion formed at a portion where the screw rod member is screwed.
  The apparatus base mounting structure for an electronic device according to any one of claims 1 to 3, wherein a fixed boss portion is formed in a portion through which the screw rod member is inserted into the upper surface wall portion of the storage portion. .

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