JPS584194Y2 - Cord retention structure - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement in a cord holding structure.

For example, regarding the holding structure of the power cord of electrical equipment, when a predetermined load is applied to the pulled-out cord in the axial direction, top, bottom, or left or right direction, the cord may be cut or it may come into contact with the internal device. It must be ensured that problems such as short-circuiting of connections or lifting of the frame do not occur.

For this reason, conventionally, a structure has been adopted in which the cord is held by a cord holder and the cord holder is fixed to the frame by screws or the like.

However, such a structure requires parts such as a cord holder and requires a pinning process.

Furthermore, once the cord holder that has been fixed with the screws is removed due to adjustment or the like, there is a drawback that the cord holder cannot be firmly attached when the cord holder is fixed with the screws again.

Therefore, the present invention provides a cord retention mechanism that eliminates special parts such as cord holders and screwing processes, and complies with the above safety standards.

The purpose of this is to provide a cord holding section near the side end of the base frame, which consists of an annular wall, a guide groove protruding from the annular wall with its axis slightly shifted, and a guide wall that guides one of the grooves to the side end of the frame. A knot is provided in the cord, the knot is fitted into the annular wall, and both ends of the cord are pulled out from the guide groove, and the upper frame and the base frame are connected by a cord retaining projection protruding from the upper frame. It is distantly related to the structure that presses down the knot.

The details of the present invention will be explained below with reference to embodiments shown in the drawings.

1 to 3 show a first embodiment of the present invention, in which 1 is a cord, a knot 2 is provided in the middle of the cord, one end 3 is connected inside a device (not shown), and the other end 4
is pulled out.

5 is a base frame.

The base frame 5 is molded from a synthetic resin material,
A rib-like protrusion 6 is formed on its periphery.

A cord holding portion 7 is provided near one end of the base frame 5.

The cord holding part 7 has a cylindrical shape as a whole, and its annular wall 8
Cord guide grooves 9 and 10 in the height direction are cut out at the side ends of the base frame 5 and at positions on the opposite side where the axis is shifted by θ° (see FIG. 2).

The width of these cord guide grooves 9 and 10 is approximately equal to the diameter of the cord 1.

Further, one cord guide groove 9 has mutually parallel guide walls 11.1 extending integrally from the annular wall 8 constituting this groove.
2 opens at the side end of the base frame 5.

The inner edges of the guide walls 11.12 are chamfered.

Further, at the frame side end opening of the cord guide groove 9, the rib-like protrusion 6 is notched, and the notched side edge 6a is chamfered.

13 is an upper frame. This upper frame 13 is also molded from a synthetic resin material, and a cord holding pin 14 is integrally provided on the lower surface thereof in correspondence with the cord holding portion 7, in other words, the annular wall 8. A recess 16 is provided in a corresponding portion of the guide groove 9.

The lower edge of this recess 16 is chamfered.

The upper frame 13 is integrally connected to the base frame 5 by appropriate configuration and means.

In this connected state, the cord holding pin 14 faces the center of the annular mold 8.

In the above configuration, the cord 1 has its knot 2 fitted into the annular wall 8 of the cord holding part 7, its one end 3 pulled out through the guide groove 9, and the other end 4 pulled out from the guide groove 10.

Of course, at this time, it is assumed that the cord end 4 is electrically connected to other parts of the device.

After that, when the base frame 5 and the upper frame 13 are connected, the presser pin 14 presses the knot 2 of the cord 1 from above, as shown in FIG.

Further, the cord end portion 3 can be pulled out from a space formed by a notch provided in the rib-like protrusion 6 of the base frame 5 and a recess 16 in the peripheral wall 15 of the upper frame 13.

Since the cord holding structure of the embodiment is configured as described above, when a tensile force is applied to the other end 3 of the cord 1 in the axial direction (direction of arrow a in FIG. 2), the knot 2 forms the guide groove 9. The tensile force is not directly applied to the inside of the device because it is locked by the annular wall 8.

Furthermore, the knot 2 is held down by the presser pin 14, and the guide grooves 9 and 10 are located at offset positions on their axes, so the effect is even more pronounced than when simply tying a knot in the cord. .

Furthermore, when a tensile force is applied to the cord 1 in the left-right direction (in the direction of arrows S and C in FIG. 2), the guide walls 11 and 12 are provided between the knot 2 and the frame opening. The looseness of the knot 2 inside the guide wall 11.12 is reduced, and since the inner edges 11a and 12a of the guide walls 11.12 are chamfered, the cord 1 can be cut by sliding into contact with these edge portions. Accidents are prevented.

Furthermore, when a tensile force is applied to the cord 1 in the upward and downward directions (directions of arrows d and e in Figure 3), the cord 1
Since it is held down by the holding pin 14, lifting up and its influence on the connection portion is prevented.

In addition, since the cutout side edge 6a of the rib-like protrusion 6 and the lower edge of the recess 16 of the peripheral wall 15 are chamfered, it is possible to avoid accidents such as the cord 1 being cut due to sliding contact with these side edges. is prevented.

In other words, even if a tensile force is applied in any direction to the cord 1 pulled out from the frame, this tensile force is prevented from directly acting on the connection between the cord and internal equipment, and the cord is prevented from being damaged or damaged. Cutting accidents can be prevented.

FIG. 4 shows another embodiment of the cord holding structure according to the present invention, in which the same parts as in the first embodiment are given the same reference numerals and the explanation thereof will be omitted.

This second embodiment is characterized by a cord presser protrusion 17 protruding from the lower surface of the upper frame 13.

That is, the cord holding protrusion 17 has a shape that fits the cord holding part 7 formed on the base frame 5, in other words, the cord holding part 17 has a shape that fits inside the annular wall 8 and the cylindrical part 18 and the pillar part that fit into the guide grooves 9 and 10, respectively. 19 and 20.

Of course, the lower edge of the column part 19 corresponding to the notch side edge 6a of the rib-like protrusion 6 is chamfered.

The height of this protrusion 17 is smaller than the height of the annular wall 8.

By forming the protrusion 17 in this way, the cord 1 fitted into the cord holding part 8 is pressed not only on the knot 2 but also on the entire cord, so that it is held more firmly.

As described in detail above, according to the present invention, the cord can be held without any screwing as in the conventional case, and the assembly process can be streamlined.

Further, when the cord is removed for adjustment or the like and then reassembled, the cord can be held with the same strength as when it was first assembled.

Furthermore, not only the number of conventional cord holders and set screw parts are reduced, but the same safety as the conventional structure is guaranteed even when tensile force is applied to the cord from any direction, making it practical. The effect is extremely large.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a main part showing an embodiment of a cord holding structure according to the present invention, FIG. 2 is a plan view of a base frame illustrating the cord holding part, and FIG. Fourth
The figure is an exploded perspective view of main parts showing another embodiment. 1...Code, 2...Itoyoshibime, 5.
... Base frame, 7 ... Cord holding part, 8 ... Annular wall, 9.10 ... Cord guide groove, 11.12 ...・Code guide wall, 13
... Upper frame, 14 ... Presser pin, 17 ... Presser protrusion.

Claims (1)

[Scope of utility model registration request] A generally cylindrical cord holding part is formed near one side end of the base frame, and this cord holding part has a diameter of the cord on the side end side of the base frame of the annular wall and on the opposite side with the axis slightly shifted. first and second cord guide grooves having substantially equal groove widths; and a guide wall extending from the annular wall along the first cord guide groove to a side end of the base frame and having an inner edge thereof chamfered. The upper frame has a cord holding projection protrudingly provided, a knot is provided on the cord, the knot is fitted into the holding portion, and both ends of the cord are pulled out from the first and second guide grooves, respectively. A cord holding structure characterized in that a base frame and an upper frame are integrally connected to each other so that the presser protrusion protrudes into the holding portion and presses a knot of the cord.