JPH08128419A - Attaching device for radio base station in ceiling of underground shopping center or the like - Google Patents

Abstract

PURPOSE: To enable a radio base station to be easily attached to a ceiling batten installed in the ceiling of an underground shopping center. CONSTITUTION: A ceiling batten 3 is interposed among pinching pieces 7, 7, 8, 8 projectingly provided on the lower surface of a base plate 6, and a screw part 14 of a fastening bolt 1 wherein a locking part piece 15 is brought into contact with the lower surface of the ceiling batten 3 is inserted through the base plate 6, and a fastening nut 2 is screwed and fastened. A radio station B is attached to the base plate 6 and fastened by attaching bolts 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting a wireless base station on the ceiling of an underground shopping mall.

[0002]

2. Description of the Related Art Recently, car phones and mobile phones have become popular as mobile communication systems for public use. However, the radio base stations of mobile communication systems are usually installed in telephone stations, etc., and the equipment and maintenance of the equipment are enormous. There is a reality that it costs a lot.

On the other hand, a simple mobile phone system is being studied as a system that can provide public communication at a lower cost than conventional mobile phones.

Since the transmission power of this system is smaller than that of the conventional radio communication system, the radio zone per radio base station is narrowed, and as a result, the number of radio base stations in the service providing area is inevitable. Increase. Therefore, it is indispensable to install a wireless base station under the ceiling in an underground shopping area where there is no height and space is limited, but since the simplified mobile phone system itself is a new field system,
There is no conventional example that can be specifically mentioned as a device for mounting a wireless base station in the ceiling of an underground shopping mall.

The present invention focuses on the field edge receiving material installed under the ceiling of an underground mall or the like, and the radio base station is attached to the ceiling using the field edge receiving material.

[0006]

[Means for Solving the Problems] At least a pair of holding pieces projectingly provided on a lower surface of a substrate screwed to a lower surface of a radio base station, and a field frame receiving member installed on the back of a ceiling of an underground mall or the like between the holding pieces. The screw bolt of the tightening bolt, in which a piece is brought into contact with the lower surface of the field receiving material, is penetrated through the board, and the tightening nut is screwed to the tip of the screw part protruding from the board. The substrate is constituted by a grooved section having a mounting portion for screwing to the base station, and a tightening nut is engaged in a recessed portion on the upper surface side of the substrate to further embody the above configuration.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of a device for mounting a radio base station in the ceiling of an underground mall, etc. according to the present invention. FIG. 1 is a side view showing a cross section of a field edge receiving member, and FIG. FIG.

In the embodiment, the fitting A, the tightening bolt 1, and the tightening nut 2 screwed onto the tightening bolt 1 are used.
Are assembled with each other and the radio base station B is attached to the upper surface side of the field reception material 3.

The mounting metal fitting A is composed of a pair of long holding pieces 7, 7 on the lower surface of a base plate 6 which is formed of a grooved cross section in which mounting pieces 5, 5 are connected to both ends of the main frame 4, and the long holding pieces. A pair of short holding pieces 8 and 8 are provided so as to be spaced apart from each other.

The mounting piece 5 of the base plate 6 of the mounting bracket A is provided with an insertion hole 10 through which a mounting bolt 9 for mounting on the lower surface B'of the radio base station B is inserted, and a pair of long holding members are provided. Between the pieces 7 and 7 and between the pair of short holding pieces 8 and 8 are arranged in a straight line to form the holding distances 11 and 11 of the field edge receiving member 3, and the tightening bolt 1 is penetrated at an appropriate position deviating from the line. Through holes 12 are provided.

The tightening bolt 1 is composed of an L-shaped rod whose lower portion is bent as a whole. The vertical rod 13 is provided with a screw portion 14 on the upper end thereof, and the lower portion is provided with a horizontal rod 15a and the horizontal rod. An engaging portion piece 15 composed of an end portion 15b formed by bending a tip end of 15a is provided, and the horizontal rod portion 15a is attached to the engaging portion piece 15 so that the horizontal rod portion 15a contacts the lower surface 3'of the field edge receiving member 3. The metal frame A and the main frame 4 hold the field edge receiving material 3.

Therefore, the holding interval 11 of the mounting bracket A,
11 to engage the field edge support member 3 to connect the horizontal rod 15a to the support member 3
The screw portion 14 of the vertical rod 13 of the tightening bolt 1 is passed through the through hole 12 so as to be in contact with the lower surface of the tightening bolt 1, and the tightening nut 2 is attached to the tip of the screw portion 14 protruding into the recess 16 on the upper surface side of the substrate 6. Mounting bracket A by screwing and tightening
The device of the embodiment is obtained by assembling the above-mentioned to the field edge receiving material 3 and attaching the radio base station B to the attaching metal fitting A by the attaching bolts 9.

[0013]

[Effect] Since the mounting device of the present invention is as described above,
Since the mounting work can be done on the field edge receiving material of the wireless base station with the tightening bolts and nuts still attached to the mounting bracket body,
One-handed work is possible, and the presence of the holding plate prevents the mounting bracket from rotating when mounting the device to the field edge receiving material with the tightening bolts and nuts. Suitable for work in narrow and narrow ceilings.

[Brief description of drawings]

FIG. 1 is a side view showing a cross section of a field edge receiving material.

FIG. 2 is a perspective view of a fitting.

[Explanation of symbols]

 1 Tightening bolt 2 Tightening nut 3 Field edge receiving material 5 Mounting piece 6 Board 7 Long holding piece 8 Short holding piece

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minoru Nakamura 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Masaru Yamamoto 1-6-1, Uchiyukicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation

Claims (2)

[Claims] 1. A radio base station is provided with at least a pair of holding pieces projecting from a lower surface of a base plate which is screwed to the lower surface of the base, and a field receiving member installed on the back of a ceiling such as an underground mall is interposed between the holding pieces. A radio base station in the ceiling of an underground mall or the like, in which a screw portion of a tightening bolt whose piece is in contact with the lower surface of the field edge receiving material is penetrated through the substrate, and a tightening nut is screwed onto the tip of the screw portion protruding from the substrate. Mounting device. 2. The substrate is constituted by a grooved section having cross-sections provided at both ends with mounting pieces for screwing to a radio base station,
A tightening nut is engaged in the recessed portion on the upper surface side of the substrate,
The device for mounting a wireless base station in the ceiling of an underground mall or the like according to claim 1.