JPH0741996Y2 - Protective leg - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a protective leg used as a leg of a device such as a copying machine or a printer.

[Prior Art] Conventionally, as shown in FIG.
A non-transition member 102 formed of a rubber material or the like is provided on the lower surface of a leg body 101 attached to the bottom surface of 100 in order to absorb vibration and prevent lateral slippage. This non-transition member 102 is a leg 10
The lower surface of 1 is covered with a cap shape, and is fixed to the leg body 101 by a fixing bush 103 and a screw 104 that are inserted thereafter.

In addition, in Japanese Utility Model Laid-Open No. 1-151740, the fixed bush 10
There is disclosed a technique of fixing the non-transition member to the leg side by a press-fitting pin instead of 3 and the screw 104, or by fixing only the screw.

[Problems to be Solved by the Invention] However, in the above conventional structure, if the lower surface shape of the leg body 101 is different, it is necessary to prepare another non-transition member 102, and the shape is complicated. . Further, since it is necessary to individually attach the non-transition member 102, the fixed bush 103, and the screw 104 to the leg body 101, the number of attachment steps is large. Therefore, the cost was high.

The present invention has been made in view of the above problems, and an object thereof is to provide a protective leg having a structure that simplifies the mounting work and reduces the cost.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a non-transition member made of a synthetic resin, which is made to abut on the bottom surface of the device body and protrudes from the lower surface of the leg. In the attached protective leg, an engaging hole formed from the lower surface side toward the upper surface side is provided in the shaft center of the leg body, and the engaging hole of the leg body can be press-fitted from the lower side to engage with the shaft center. It has a synthetic resin pin cover having a dowel hole, and a synthetic resin pin that can be press-fitted into the engagement hole of the pin cover from below. It is provided integrally.

[Operation] According to the above configuration, for example, in a state where the pin cover is press-fitted into the engagement hole of the leg, the non-transition member is simultaneously attached by press-fitting the pin into the engagement hole of the pin cover. . This pin cover makes it possible to commonly use standardized pins and non-transition members by simply making only a simple pin cover for various types of legs having different shapes. It can be generalized as an attached pin.

[Embodiment] An embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 3 show an embodiment of a protective leg according to the present invention, and FIG. 1 is a cross-sectional view showing its assembled state,
FIG. 2 is a sectional view showing a state in the middle of disassembly, and FIG. 3 is an exploded perspective view thereof.

In FIGS. 1 to 3, the protective leg 1 includes a leg body 2
And the pin cover 3, the pin 4, the non-transition member 12, and the like.

More specifically, the leg 2 is formed of a synthetic resin material such as polypropylene (PP), and has an inner cylindrical shape having a through hole 5 formed in the center from the lower surface side to the upper surface side and serving as an engagement hole. The portion 6 and the outer tubular portion 7 formed in a state of being turned outward from the lower end side of the inner tubular portion 6 and folded back upward are integrally provided. In addition, the upper end side of the inner tubular portion 6 is formed so as to project from the upper end of the outer tubular portion 7, and a plurality of slits 8 are provided in the projecting portion 6a. Further, the inner peripheral surface 5a on the lower end side of the through hole 5 is formed with an inner diameter larger than the other inner peripheral surface 5b, and a step surface 5c is provided between the inner peripheral surface 5a and the inner peripheral surface 5b. It has become.

A plurality of blade-shaped walls 9 are provided in the space formed between the outer surface of the inner tubular portion 6 and the inner surface of the outer tubular portion 7, and the inner tubular portion 6 and the outer tubular portion 9 are formed by the walls 9. It is reinforced between the shape portion 7 and the shape portion 7.

The pin cover 3 is formed of a synthetic resin material such as polypropylene (PP) into a tubular shape having an engaging hole 10 at its axis, and can be press-fitted into the through hole 5 of the leg body 2. Further, on the lower end side of the pin cover 3, there is integrally provided a collar-shaped portion 3a formed with an outer dimension slightly smaller than the inner diameter dimension of the inner peripheral surface 5a of the through hole 5. Further, a reinforcing partition wall 3b is integrally provided on the inner peripheral surface on the upper end side, and a slit 3c is formed on the lower end side.

Then, the pin cover 3 is press-fitted into the through hole 5 until the collar-shaped portion 3a comes into contact with the step surface 5c, and is attached to the leg 2 with a predetermined pressure input. Also, at this time, the portion 6a of the inner tubular portion 6 is pushed outward through the slit 8 to open the portion.
6a is pressed against the inner surface of the mounting hole 11a of the device body 11
Can be fixed to the device body 11.

Next, the pin 4 and the non-transition member 12 are integrally formed with each other by two-color molding. Of these, the pin 4 is formed of a synthetic resin material such as polypropylene (PP). Then, the lower end side of the pin cover 3 is pushed outward by the slit 3c so that it can be press-fitted into the engaging hole 10 of the pin cover 3, and the flange-like portion 4a is integrally provided at the lower end. There is.

On the other hand, the non-transition member 12 is, for example, a soft PTE special synthetic resin such as an olefin resin and is two-color molded together with the pin 4 in a state of covering the outer periphery of the collar-shaped portion 4a of the pin 4 and having an outer diameter. The dimension is formed to be substantially the same as the outer diameter dimension of the collar portion 3a of the pin cover 3.

The protective leg 1 configured as described above is provided in the device body 11
In the case of assembling, the portion 6a of the leg 2 is first inserted into the mounting hole 11a of the device body 11, and then the pin cover 3 is press-fitted into the through hole 5. Then, the portion 6a is pushed outward through the slit 8 and pressed against the mounting hole 11a, so that the device body 1
Leg 2 is attached to 1. Next, when the pin 4 is press-fitted into the engagement hole 10 of the pin cover 3, the lower end side of the pin cover 3 is pushed toward the engagement hole 5 side through the slit 3c and is strongly press-fitted into the engagement hole 10. Combined, pin 4 and non-transition member
12 and 12 are integrally attached to the lower portion of the leg body 2 via the pin cover 3, and the assembly is completed.

In this state, as shown in FIG.
The non-transition member 2 can be attached so as to slightly protrude from the lower surface of the device and contact the device installation floor surface (not shown) to support the device body 11. This prevents lateral slippage of the device body 11 and absorbs vibration.

Therefore, in the protection leg 1 configured as described above, the pin 4 and the non-transition member 12 are two-color molded and integrated with each other, so that when the pin 4 is attached, the non-transition member 12 can be attached at the same time. , Installation work becomes easy. Further, if only the insertion engaging portions are the same, the pin 4 and the non-transition member are not changed even if the shape of the leg 2 is changed.
12 can be used in common and can be generalized.

Next, FIGS. 4 to 6 show a modified example of the protective leg according to the present invention. In FIGS. 4 to 6, the same reference numerals as those in FIGS. 1 to 3 denote the same parts as in FIGS. 1 to 3.

In the protection leg 1 shown in this modified example, a plurality of elastic locking claws 13 are formed on the inner peripheral surface 5a of the leg body 2 at a substantially equal interval in a state of being obliquely cut and raised from the lower end side toward the upper end side. is doing.
A locking projection wall 14 that can be engaged with the elastic locking claw 13 is provided on the outer peripheral surface of the flange-shaped portion 3a of the pin cover 3 over the entire circumference.

In this structure, when the pin cover 3 is press-fitted into the engagement hole 5, the elastic projection claw 13 comes into contact with the locking projection wall 14 on the way. When it is further pressed in, the locking projection wall 14 becomes an elastic locking claw.
When the locking projection wall 14 is inserted while pushing it back outward and the tip of the elastic locking claw 13 is crossed, the elastic locking claw 13 self-elastically recovers and advances to the lower side of the locking projection wall 14 and slips out. Will be stopped.

Therefore, in the structure of this modified example, the engagement force between the engagement projection wall 14 and the elastic engagement claw 13 is applied together with the press-fitting engagement force of the pin cover 3, so that the pin cover 3 is reliably removed from the leg body 2. Can be prevented.

[Advantages of the Invention] As described above, according to the protection leg of the present invention, the pin and the non-transition member can be attached at the same time only by press-fitting the pin into the engagement hole of the leg through the pin cover. Therefore, the installation work is simplified. Also, by interposing this pin cover, standardized pins and non-transition members can be used in common as a single body by creating only a simple pin cover for various legs having different shapes. It is possible to achieve generalization. As a result, the cost can be reduced and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a protective leg according to the present invention in a completed assembled state, and FIG. 2 is a vertical sectional side view showing the protective leg shown in FIG. Figure 3 is the first
FIG. 4 is an exploded perspective view of the protective leg shown in FIGS.
FIG. 6 is a vertical sectional side view showing a modified example of the protective leg according to the present invention in a completed assembled state, and FIG. 5 is a vertical sectional side view showing the protective leg shown in FIG. The figure is an exploded perspective view of the protective leg shown in FIGS. 4 and 5, and FIG. 7 is a vertical sectional side view showing an example of a conventional protective leg. 1 …… Protective leg 2 …… Leg body 3 …… Pin cover 4 …… Pin 5 …… Leg body through hole (engaging hole) 10 …… Pin cover engaging hole 11 …… Device body 12 …… Non Transition member

Claims (1)

[Scope of utility model registration request] 1. A leg body, which is disposed in contact with a bottom surface of a device body,
In a protection leg formed by attaching a non-transition member made of synthetic resin so as to project from the lower surface of the leg body, while providing an engagement hole formed from the lower surface side to the upper surface side in the axial center of the leg body, There is a synthetic resin pin cover that can be press-fitted into the engagement hole of the leg from the lower side and has an engagement hole in the shaft center, and a synthetic resin pin that can be press-fitted from the lower side in the engagement hole of the pin cover. The protection leg is characterized in that the non-transition member is integrally provided on the lower end of the pin by two-color molding.