JPH0330195U

JPH0330195U -

Info

Publication number: JPH0330195U
Application number: JP8835789U
Authority: JP
Priority date: 1989-07-26
Filing date: 1989-07-26
Publication date: 1991-03-25

Description

[Brief explanation of drawings]

第１図〜第３図はこの考案の実施例を示すもの
で、第１図は正面図、第２図は第１図のＡ−Ａ線
断面図、第３図は第１図のＥ−Ｅ線断面図、第４
図は第１図のＢ−Ｂ線断面図、第５図は第１図の
Ｄ−Ｄ線断面図、熱感知器の側面図、第６図〜第
１０図は従来例を示すものであり、第６図は煙感
知器の場合の側面図、第７図は熱感知器の場合の
側面図、第８図は斜視図、第９図は他の従来例の
正面図、第１０図は第９図のＡ−Ａ線断面図であ
る。１……用具本体、３……ヘツド嵌入凹部、４，
５……係合部、４Ａ，５Ａ……弧状係合爪、４Ｂ
……面取り、４Ｃ……保持力補強突起、６，７Ａ
……溝、７Ｂ……逃し部、ａ……天井面、ｂ……
感知器ベース、ｃ……感知器ヘツド。 Figures 1 to 3 show an embodiment of this invention; Figure 1 is a front view, Figure 2 is a sectional view taken along line A--A in Figure 1, and Figure 3 is a cross-sectional view taken along line A-A in Figure 1. E-line sectional view, 4th
The figure is a cross-sectional view taken along line B-B in Figure 1, Figure 5 is a cross-sectional view taken along line D-D in Figure 1, and a side view of the heat sensor. Figures 6 to 10 show conventional examples. , Figure 6 is a side view of a smoke detector, Figure 7 is a side view of a heat detector, Figure 8 is a perspective view, Figure 9 is a front view of another conventional example, and Figure 10 is a side view of a heat detector. FIG. 9 is a sectional view taken along line A-A in FIG. 9; 1... Tool body, 3... Head insertion recess, 4,
5... Engaging portion, 4A, 5A... Arc-shaped engagement claw, 4B
... Chamfer, 4C ... Holding force reinforcing protrusion, 6,7A
... Groove, 7B ... Relief part, a ... Ceiling surface, b ...
Sensor base, c...sensor head.

Claims

[Scope of Claim for Utility Model Registration] (1) An engaging part that can be externally fitted and engaged with a part of a sensor head having a different outer diameter, on the inner peripheral surface of a tool body having a head fitting recess made of rubber or soft synthetic resin. is formed into multiple stages, one stage has a first engaging portion having a plurality of arc-shaped engaging claws projecting inward, and a holding force reinforcing protrusion projecting inward. A sensor head attaching/detaching tool having a second engaging part having a second engagement part, and a third engaging part having a plurality of arcuate engaging claws projecting inward on the other stage. (2) In the one stage, a groove communicating with the outer periphery is provided at the boundary between the first engaging part and the second engaging part to divide each of the engaging parts, and the first engaging part 2. The sensor head attachment/detachment tool according to claim 1, wherein the lower part of the arcuate engaging claw of the mating part is a relief part, and the second engaging part is provided with a chamfer at the upper part of the holding force reinforcing protrusion. (3) The sensor head attachment/detachment tool according to claim 1, wherein grooves are provided on both sides of the third engaging portion in the other stage.