JP2001307584A - Hook knob mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hook knob mounting structure minimizing a placement space for a hook knob moving in a main body, and preventing foreign matter from entering a gap between the hook knob and the main body. SOLUTION: A front case 10 forms a main body of a telephone set, has a recessed part 12 where a receiver is placed, and has an opening hole 14 which is opened in the inside face of the recessed part 12 and is integrally formed with a rib 16 which surrounds the hole 14 and extends from it on the back face of the recessed part 12. A hook knob 20 is formed by integrating a hook part 22 which is inserted into the rib 16 in the front case 10 and protrudes from a surface of the recessed part 12 through the opening hole 14, and a concave rib part 24 surrounding and covering a periphery of the hook part 22. The hook knob 20 is supported movably up and down so that the rib part 24 slides along the rib 16 and an on/off operation in communication can be run. Thus, foreign matter can be prevented from entering the gap between the hook part 22 and the opening hole 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hook knob mounting structure, and more particularly, to a telephone body or an intercom or the like, which is mounted on a main body and protrudes into a recess for accommodating a handset to perform a call on / off operation. The present invention relates to a hook knob mounting structure.

[0002]

2. Description of the Related Art Conventionally, a hook knob mounting structure is as follows.
A concave portion for accommodating the handset is formed in a main body such as a telephone (wired telephone) and an intercom, and an opening is formed in the concave portion so that a hook knob is protruded from the main body. The hook knob is operated by the weight of the transmitter / receiver accommodated in the concave portion of the main body, and is formed so as to perform a call on / off operation by turning on / off a hook switch in the main body. FIG. 5 is a configuration diagram showing a conventional hook knob mounting structure employed in such a telephone. FIG. 6 is a diagram showing the back surface of the front case 30 shown in FIG. FIG. 7 is a sectional view showing a section taken along line CC shown in FIG.

As shown in FIG. 5, a conventional hook knob mounting structure employed in a telephone includes a front case 30 forming a main body of the telephone.
0, a recess 32 for accommodating the transmitter / receiver 4 (see FIG. 7) is formed to form an opening hole 34 opening on the concave bottom surface, and the hook knob 40 is projected from the back side of the front case 30 into the opening hole 34. It has a mounted structure.

Here, on the back surface of the front case 30,
As shown in FIG. 6, a pair of support ribs 38 are formed integrally and protrude in parallel with the vicinity of the opening hole 34 opening in the concave portion 32. The support rib 38 forms a hole 38 a that rotatably supports one end of the hook knob 40. The hook knob 40 includes a substantially rectangular plate portion 44, a hook portion 42 vertically projecting from the surface of the plate portion 44, a plate projection 48 projecting to the back side of the hook portion 42, and a plate portion 44.
And two arm portions 45 extending in parallel from the side surfaces of the arm are integrally formed. These two arm portions 45 are cylindrical shafts 4 projecting from both sides toward the outside extending in parallel.
6 are integrally formed.

The hook knob 40 is shown in FIG. 5 by inserting a hook portion 42 into an opening hole 34 of the front case 30 and inserting a shaft 46 projecting from an arm portion 45 into a hole 38 a of a support rib 38. As shown in FIG.
4 and is supported. Here, a circuit board 1 is housed in the front case 30, as shown in FIG.
Is implemented. The hook switch 2 includes a switch portion 2a that is turned on and off, and is arranged so that the plate protrusion 48 of the hook knob 40 is in contact with the switch portion 2a.

Accordingly, when the handset 4 is placed in the recess 32 of the front case 30, the hook knob 40
Abuts on the hook portion 42 to rotate about the shaft 46 and descend into the opening hole 34 of the front case 30. At this time, the hook knob 40 presses the switch 2a of the hook switch 2 mounted on the circuit board 1 with the plate projection 48 to turn off the talking state. On the other hand, when the handset 4 is picked up from the concave portion 32, the switch portion 2a of the hook switch 2 is raised to turn on the talking state, and the hook knob 40 is raised so that the hook portion 42 projects from the opening hole 34. Return. As described above, the conventional hook knob mounting structure is configured such that the hook knob 40 is rotatably supported on the front case 30 and the rotation of the hook portion 42 and the plate protrusion 48 about the shaft 46 as a fulcrum allows the front case 30 to rotate. In this case, the hook switch 2 mounted on the circuit board 1 is operated to turn on / off the talking state.

[0007]

However, in the conventional hook knob mounting structure, as shown in FIG. 7, the handset 4 is placed in the concave portion 32 and the hook knob 40 is lowered to the lowest point. At this time, the opening hole 3 of the front case 30
Since the gap D shown in FIG. 7 is greatly opened between the hook 4 and the hook portion 42 of the hook knob 40, foreign substances such as dust and pests may enter the front case 30 from the gap D. There was a defect. Further, in the conventional hook knob mounting structure, as shown in FIG. 7, the hook knob 40 is formed in a structure in which the hook portion 42 and the plate protrusion 48 are rotated about the shaft 46 as a fulcrum. A space for rotating the hook knob 40 is required between the hole 34 and the shaft 46, and it is difficult to secure an arrangement space for mounting components to be mounted on the circuit board 1 between the opening hole 34 and the shaft 46. There was a problem of becoming. An object of the present invention is to solve such a problem and to provide a hook knob mounting structure for minimizing an arrangement space for a hook knob operating in a main body and preventing foreign matter from entering due to a gap with the main body.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention projects through an opening hole into a concave portion which is attached to a main body of a telephone or an intercom and accommodates a handset. A hook knob mounting structure provided with a hook knob for performing a call on / off operation by detachment, comprising a main body integrally formed with a rib extending around a periphery of an opening hole on a back surface of a concave portion. A hook is provided in the main body, and is provided with a hook knob integrally provided with a hook portion protruding from the opening hole to the surface of the concave portion through the opening hole and a concave rib portion surrounding the rib into which the hook portion is inserted. The hook knob is supported on the main body so that the rib portion slides along and the call is turned on and off, and is provided so as to prevent intrusion of foreign matter due to a gap between the hook portion and the opening hole.

Here, the hook knob is provided with a pair of shafts protruding from both side surfaces, and provided with a support rib which engages with the shaft and enables the rib portion to slide along the rib. Is preferred. Further, it is preferable that the support rib is formed integrally with the main body, extends in a thin plate shape in parallel with both sides of the rib, and forms a slide hole for engaging and sliding the shaft.
Further, it is preferable that the hook knob performs a call on / off operation by turning on / off a hook switch mounted on a circuit board in the main body by a sliding operation along the rib. Further, the rib and the rib portion are formed into a shape having a peripheral wall such as a lattice or a cylinder formed in a rectangular shape on the main body and the hook knob, and are fitted to each other so as to surround the periphery of the opening hole so that the foreign matter can be formed. It is preferable to prevent intrusion.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a hook knob mounting structure according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a configuration diagram showing an embodiment of a hook knob mounting structure according to the present invention. FIG.
FIG. 2 is a diagram illustrating a back surface of the front case 30 illustrated in FIG. 1. FIG. 3 is a cross-sectional view showing a cross section taken along line AA shown in FIG. FIG. 4 is a sectional view showing a section taken along line BB shown in FIG. Here, the circuit board 1, the hook switch 2, and the handset 4 shown in FIG. 4 are the same components as the circuit board, the hook switch, and the handset shown in FIG. 7, and the same components are the same. The code is described.

As shown in FIG. 1, an embodiment of the hook knob mounting structure according to the present invention is employed in a telephone (wired telephone) as in the prior art shown in FIG. A front case 10 is formed, and a recess 12 is provided in the front case 10 for accommodating the transmitter / receiver 4 (see FIG. 4).
4 and a structure in which a hook knob 20 is attached so as to protrude from the back side of the front case 10 into the opening hole 14.

The front case 10 is different from the prior art shown in FIG.
4, the opening holes 1 are formed in a rectangular lattice as shown in FIG.
The ribs 16 surrounding the periphery of 4 are integrally formed. Also,
The front case 10 is integrally formed with support ribs 18 extending in a thin plate shape in parallel with both sides of the ribs 16. The support rib 18 is formed with a sliding hole 18a which is opened so as to extend in a slender manner and which slidably supports the hook knob 20.

The hook knob 20 is different from the prior art shown in FIG. 6 in that the hook knob 20 is inserted into the rib 16 of the front case 10 from behind and projects from the opening 14 to the surface of the recess 12. A rib portion 24 formed in a concave shape so as to cover and surround the periphery of the hook portion 22 is integrally formed. The hook knob 20 is formed integrally with a pair of shafts 26 (see FIG. 1) protruding from both side surfaces and a plate protrusion 28 protruding from the bottom surface of the rib portion 24.

When such a hook knob 20 is mounted on the front case 10, the front case 10 is disposed between the hook portion 22 and the rib portion 24 of the hook knob 20.
And the shaft 26 is fitted into the sliding hole 18 a of the support rib 18. By fitting the shaft 26 into the support rib 18 in this way, as shown in FIG. 3, the hook knob 20 slides in the vertical direction without falling off and is supported by the support rib 18 so as to be able to move up and down. The hook knob 20 is attached to the rib 16 of the front case 10 by a rib portion 24.
Can be positioned so as to cover and cover the inside of the opening hole 14. Further, the hook knob 20, for example, does not affect the elevating operation even if burrs on the mold structure such as the ribs 24 are generated. Therefore, as shown in FIG. 3, the hook knob 20 has the rib portion 24 disposed so as to cover the lower end portion and the outer periphery of the rib 16, so that the hook knob 20 differs from the prior art shown in FIG. Foreign matter such as the like can be prevented.

Unlike the conventional rotary operation shown in FIG. 7, the hook knob 20 moves up and down in the vertical direction, so that the hook knob 20 can be easily arranged even in a narrow arrangement space in the front case 10. Also, front case 1
As shown in FIG. 4, a circuit board 1 is housed in 0, and a hook switch 2 is mounted on a mounting surface of the circuit board 1. The hook switch 2 includes a switch portion 2a that performs an on / off operation, and is arranged so that the plate protrusion 28 of the hook knob 20 is in contact with the switch portion 2a.

Accordingly, when the handset 4 is placed in the concave portion 12 of the front case 10, the hook knob 20
The ribs 24 slide along the ribs 16 of the front case 10 by contacting with the hooks 24 and descend into the opening holes 14. At this time, the hook knob 20 is connected to the switch unit 2 of the hook switch 2 mounted on the circuit board 1 by the plate protrusion 28.
Press a to turn off the talking state. On the other hand, when the handset 4 is picked up from the concave portion 12, the switch portion 2a of the hook switch 2 is raised to turn on the talking state, and the hook knob 20 is raised to bring the hook portion 22 out of the opening hole 14. Return.

Although the embodiment of the hook knob mounting structure according to the present invention has been described in detail, the present invention is not limited to the above-described embodiment, and can be changed without departing from the gist of the present invention. is there. For example, the embodiment in which the hook knob mounting structure according to the present invention is adopted in a telephone has been described, but the present invention is not limited to this.
The present invention is also applicable to a main body having a hook knob such as an intercom.

[0018]

As described above, according to the hook knob mounting structure of the present invention, since the hook knob rib portion is disposed so as to cover the end and outer periphery of the rib provided in the opening hole of the main body, A gap between the opening hole and the hook knob can be minimized at any moving position where the hook knob moves by the lifting / lowering operation, and it is possible to reliably prevent foreign matters such as dust and pests from entering. According to the hook knob mounting structure of the present invention, the hook knob moves up and down, so that the hook knob can be arranged even in a narrow space in the front case, and the space on the circuit board in the front case can be reduced. Can be secured widely, and various mounting components can be freely arranged.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of a hook knob mounting structure according to the present invention.

FIG. 2 is a view showing the back surface of the front case shown in FIG. 1;

FIG. 3 is a sectional view showing a section taken along line AA shown in FIG. 1;

FIG. 4 is a sectional view showing a section taken along line BB shown in FIG. 1;

FIG. 5 is a configuration diagram showing a conventional hook knob mounting structure.

FIG. 6 is a view showing the back surface of the front case shown in FIG. 5;

FIG. 7 is a sectional view showing a section taken along line CC shown in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Circuit board 2 Hook switch 2a Switch part 4 Handset 10 Front case 12 Concave part 14 Opening hole 16 Rib 18 Supporting rib 18a Sliding hole 20 Hook knob 22 Hook part 24 Rib part 26 Axis 28 Plate projection

Claims (5)

[Claims] 1. A telephone which is attached to a main body such as a telephone or an intercom, and which projects through a hole for receiving a handset through an opening hole.
A hook knob mounting structure provided with a hook knob performing an off operation, comprising: a main body integrally formed with a rib extending around the periphery of the opening hole on the back surface of the concave portion; And a hook knob integrally provided with a hook portion inserted into the opening and protruding from the opening hole to the surface of the concave portion, and a concave rib portion covering and surrounding the rib into which the hook portion has been inserted. The hook knob is supported on the main body so that the rib portion slides to perform an on / off operation of a call, and is provided so as to prevent foreign matter from entering due to a gap between the hook portion and the opening hole. A hook knob mounting structure characterized in that: 2. The hook knob mounting structure according to claim 1, wherein the hook knob is provided with a pair of shafts protruding from both sides, and the main body is engaged with the shaft and extends along the rib. A mounting structure for a hook knob, wherein a mounting rib is provided to allow a sliding operation of the rib portion. 3. The hook knob mounting structure according to claim 2, wherein the support rib is formed integrally with the main body, extends in a thin plate shape in parallel with both sides of the rib, and engages the shaft. A hook knob mounting structure characterized by forming a sliding hole for sliding together. 4. The hook knob mounting structure according to claim 1, wherein the hook knob turns on and off a hook switch mounted on a circuit board in the main body by a sliding operation along the rib. A hook knob mounting structure for performing on / off operation of a call. 5. The hook knob mounting structure according to claim 1, wherein the rib and the rib portion are formed in a shape having a rectangular grid-like or cylindrical peripheral wall formed on the main body and the hook knob. The fitting structure of the hook knob is characterized in that the hook knob is fitted around each other to prevent foreign matter from entering around the opening hole.