Detachable device

Abstract

To provide an attachment / detachment device for attaching / detaching a more generally usable abnormality detection device to / from its fixing place.SOLUTION: The attachment / detachment device 1 for attaching / detaching the abnormality detection device D to / from the fixing place B is provided with a plurality of abutting elements 2 arranged so as to be capable of advancing / retreating in a direction substantially orthogonal to an arrangement surface 6 in an initial state, and the plurality of abutting elements 2 are provided so as to be capable of abutting on substantially the entire outer surface of the abnormality detection device D, and are arranged so as to be deformable according to the outer shape of the abnormality detection device D when abutting on the abnormality detection device D.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a detacher, and more particularly to a detacher for attaching and detaching an abnormality detection device to and from its fixed location. [Background technology]

[0002] The fire detector is detachably installed via a base or the like attached to a fixed location. Generally, the fixed location is a high place such as the ceiling of a building, so the fire detector is attached and detached using an attaching / detaching device.

[0003] Conventional attachment / detachment devices have a bowl portion into which a fire detector can be fitted, and the fire detector can be attached or detached by rotating the fire detector together with the bowl portion in either direction while the fire detector is fitted into the bowl portion (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-10404 Summary of the Invention [Problem to be solved by the invention]

[0005] On the other hand, there are no set standards for the external shape of fire detectors, so the external shape of fire detectors varies depending on the manufacturer and the type of detector. Therefore, apart from detectors with similar external shapes, it was necessary to prepare a detachable detector bowl that was compatible with each detector. Therefore, it had to be said that conventional detachable detectors had difficulty in versatility.

[0006] Therefore, an object of the present invention is to provide a detachable device that can be used more generally. [Means for solving the problem]

[0007] The present invention is an attachment / detachment device for attaching and detaching an abnormality detection device to its fixed location, characterized in that it comprises a plurality of abutments arranged so as to be able to move back and forth in a direction approximately perpendicular to the installation surface in the initial state, the plurality of abutments being arranged so as to be able to abut against approximately the entire outer surface of the abnormality detection device and / or the outer surface of a jig attached to the abnormality detection device, and being arranged so as to be able to deform to fit the outer shape of the abnormality detection device when abutting against the abnormality detection device.

[0008] In the present invention, the abutment may be provided so as to be engageable with the abnormality detection device and / or the jig. Also, in the present invention, the tip of the abutment may be provided with engaging means so as to be engageable with the abnormality detection device and / or the jig. Also, in the present invention, the abutment may further include restoring means for restoring the plurality of abutments to their initial state. Also, in the present invention, the abutment may be a pin. [Effects of the Invention]

[0009] In the present invention, a plurality of abutments are arranged so as to be able to move back and forth in a direction perpendicular to the installation surface in the initial state, so as to abut against the entire outer surface of the anomaly detection device, and are arranged so as to be deformable to fit the outer shape of the anomaly detection device when abutting against the anomaly detection device, making it possible to provide a detachable device that can be used more generally. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic front view of an embodiment of the present invention in an initial state. [Figure 2] 1 is a schematic front view showing a state in which a contact element according to an embodiment of the present invention is brought into contact with an abnormality detection device. [Figure 3] 1 is a schematic plan view of an embodiment of the present invention. [Figure 4] 1A and 1B are enlarged views of abutments in an embodiment of the present invention, in which (a) shows a hook-shaped engaging means, (b) shows a fishing hook-shaped engaging means, and (c) shows a spherical engaging means. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will be described with reference to Figs. 1 to 4. The detachable device 1 is used to attach and detach an abnormality detection device D to its fixed location. In this embodiment, the abnormality detection device D is a fire detector, such as a smoke detector, heat detector, flame detector, or other detector, and is fixed to a base B provided on the ceiling R. Note that the abnormality detection device D may be any of various detectors (e.g., carbon monoxide detector), various alarms (e.g., gas alarm), and the like, in addition to a fire detector.

[0012] The detachable device 1 is provided with a plurality of abutting elements 2. In this embodiment, the detachable device 1 is further provided with recovery means 3. The detachable device 1 also has a hollow base 4 and a support rod 5 attached to the base 4, and the top surface of the base 4 serves as an arrangement surface 6 for the abutting elements 2. The arrangement surface 6 is provided with a plurality of abutting elements 2 penetrating therethrough.

[0013] The multiple abutting elements 2 are arranged on the arrangement surface 6 so as to be able to advance and retreat in a direction A that is approximately perpendicular to the arrangement surface 6 in the initial state, and are provided so as to be able to abut against approximately the entire outer surface of the anomaly detection device D. In this embodiment, the multiple abutting elements 2 are arranged so as to collectively form an abutting surface with the anomaly detection device D, and each abutting element 2 is arranged so as to be able to advance and retreat independently.

[0014] The number and density of the abutments 2 can be selected as appropriate within a range that does not interfere with the attachment and detachment of the abnormality detection device D. In this embodiment, the abutments 2 are provided at a number and density that does not interfere with the engagement between the abutments 2 and the abnormality detection device D, and are provided at a number and density that makes the spacing between the abutments 2 smaller than the width of the protruding and recessed portions of the abnormality detection device D that may be expected.

[0015] In this embodiment, the abutment 2 is arranged to be able to engage with the abnormality detection device D, and the abutment 2 can be provided with an engaging means 7 for this purpose. The abutment 2 is arranged as a pin, and is provided with a retaining portion 8 to prevent it from completely coming out of the installation surface 6. The retaining portion 8 is provided with an expanded diameter on the base end side of the abutment 2, and is larger in diameter than the hole in the installation surface 6 through which the abutment 2 penetrates. The shape of the abutment 2 can be selected appropriately as needed.

[0016] The engaging means 7 is provided at the tip of the abutment piece 2 and is provided so as to be engageable with the abnormality detection device D. The shape of the engaging means 7 can be selected as appropriate, and examples of shapes that can be used include a hook shape (see, for example, FIG. 4(a)) in which the tip of the abutment piece 2 is bent, a fishing hook shape (see, for example, FIG. 4(b)) in which the tip of the hook is further bent, and a spherical shape (see, for example, FIG. 4(c)).

[0017] The restoring means 3 is provided to restore the plurality of abutting elements 2, which have advanced and retreated in accordance with the external shape of the anomaly detection device D, to their initial state, i.e., the state before the plurality of abutting elements 2 were brought into contact with the anomaly detection device D. In this embodiment, the restoring means 3 is provided with a disk-shaped pusher plate 9 provided on the base end side of the plurality of abutting elements 2 and a gripper 10 attached to the pusher plate 9, and by moving the pusher plate 9 toward the abutting elements 2 via the gripper 10, it is possible to advance the retreated abutting elements 2 and restore them to their initial state. At this time, in this embodiment, the aforementioned retaining portion 8 is provided on the base end side of the abutting elements 2, so that the abutting elements 2 can be prevented from protruding too far from the installation surface 6.

[0018] The detachable device 1 is configured so that when it abuts against the abnormality detection device D, the multiple abutting pieces 2 retract to fit the outer shape of the abnormality detection device D, thereby deforming to fit the outer shape of the abnormality detection device D. The abutting pieces 2 engage with protruding portions of the abnormality detection device D, such as ribs D1, or recessed portions of the abnormality detection device D, such as holes (not shown), so that when the detachable device 1 is rotated in any direction, the abnormality detection device D also rotates in the same direction. This makes it possible to attach and detach the abnormality detection device D.

[0019] At this time, as the multiple abutments 2 move forward and backward, they come into contact with almost the entire surface of the abnormality detection device D, so they can be engaged regardless of the position of the convex and concave portions, making it possible to accommodate abnormality detection devices D of a wider variety of shapes.

[0020] Therefore, the detachable device 1 of this embodiment has multiple abutments 2 arranged so that they can move back and forth in a direction A perpendicular to the installation surface 6 in the initial state, so that they abut against the entire outer surface of the abnormality detection device D, and are arranged so that they can deform to fit the outer shape of the abnormality detection device D when they abut against the abnormality detection device D, making it possible to provide a detachable device that can be used more generally.

[0021] Although the present invention has been described above based on the above embodiment, the present invention is not limited to the above embodiment and can be modified as appropriate within the scope of the invention.

[0022] (1) The installation surface 6 may also serve as the restoration means 3. For example, by forming the installation surface 6 from an elastic member such as an elastomer, the elasticity of the elastic member can be used to press the detacher 1 against the abnormality detection device D, thereby causing the multiple contactors 2 to retract in accordance with the outer shape of the abnormality detection device D, and at the same time, when the detacher 1 is separated from the abnormality detection device D, it becomes possible to restore the multiple contactors 2 to their initial state.

[0023] (2) A jig (not shown) may be attached to the anomaly detection device D, and the detacher 1 and the anomaly detection device D may come into contact with each other via the jig. In this case, the multiple abutting pieces 2 are provided so as to be able to come into contact with at least substantially the entire outer surface of the jig. In this way, even if the outer surface of the anomaly detection device D does not have an engaging portion such as the protrusion, the jig and the abutting pieces 2 can be engaged with each other to enable attachment and detachment. It is also possible to have the multiple abutting pieces 2 come into contact with substantially the entire surface, including the outer surface of the jig and the outer surface of the anomaly detection device D (here, this means the outer surface of the anomaly detection device D exposed from the jig). [Explanation of symbols]

[0024] 1 Detachable device 2 Abutment 3 Recovery means 4 Base 5 Support rod 6 Installation surface 7 Engagement means 8 Retaining portion 9 Push plate 10 Grip A Direction B Base D Abnormality detection device D1 Rib R Ceiling

Claims

1. A detacher for attaching and detaching the abnormality detection device to its fixed location, a plurality of contacts arranged to be movable in a direction substantially perpendicular to the arrangement surface in the initial state; the plurality of abutting elements are provided so as to be able to abut against substantially the entire outer surface of the abnormality detection device and / or the outer surface of a jig attached to the abnormality detection device, The detachable device is provided so as to be deformable to fit the outer shape of the abnormality detection device when it comes into contact with the abnormality detection device.

2. 2. The attachment / detachment device according to claim 1, wherein the abutting piece is provided so as to be engageable with the abnormality detection device and / or the jig.

3. 3. The detacher according to claim 2, wherein a tip of the abutting piece is provided with a hooking means that is capable of being hooked to the abnormality detection device and / or the jig.

4. 4. The attachment / detachment device according to claim 1, further comprising a restoring means for restoring the plurality of abutting pieces to their initial state.

5. 4. The attachment / detachment device according to claim 1, wherein the abutment is a pin.

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