JPH02236011A - Rack fixing device utilizing pin - Google Patents

Abstract

PURPOSE:To prevent a pin from coming out of a pin hole by fitting a rack into a fixing part by means of a sliding an fitting part and driving the pin, ranging from the insertion hole of the rack to the through hole of the fixing part, together with exposing an enlarged-diameter part of this pin to the outside of the fixing part. CONSTITUTION:The fitting part 4 of a rack 3 is fitted into a mating, recessed part 2, which is formed in a rail 1, and the rack 3 is slided on and fitted to the rail 1 in the longitudinal direction. Next, each insertion hole 5 is brought in line with each through hole 6, and each roll pin 7 is driven, ranging from the insertion hole 5 to the through hole 6. At this time, the diameter of the roll pin 7 is reduced, overcoming its elasticity, by using a slit 8 within the pin 7. Thus, the roll pin 7 penetrates both holes 5 and 6, while its diameter is reduced. An enlarged-diameter part 7a is formed at the base end part of the roll pin 7, and the pin 7 is driven into the hole until this enlarged-diameter part is exposed to the outside of the outer surface 1b of the rail 1. Therefore, the roll pin 7 is prevented from coming off toward the rack (3) side, and consequently the rack 3 is never floated.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a fixing device using pins, which is employed when attaching a rack to a fixed part.

Conventional technology Conventionally, this type of device was manufactured by
The structure found in Publication No. 49607 is provided. In other words, the rail device which is the fixed part is attached {=J 4. The fitted part of gA vortex is installed on the side of C, and the part of the rail device that is fixed A fitting part is formed in the fitting part that can be slidably fitted in the direction of length 8Ij, and the rack is fixed in the height direction of the peak part by IP? dynamic fitting. To fix the direction (sliding direction) 'C, use the rack handle 4.
[Four parts are formed on the side of the rail, and a button that can be inserted freely is provided on the four parts, and a spring pin (a-lu pin) is driven from the through hole formed in the rail neck to the insertion hole formed in the rail neck. By forming the inner end of the insertion hole into an enlarged diameter part,
The tip of the driven sprink pin expands due to its own elasticity at the enlarged diameter portion, thereby preventing the spring pin from being pulled out to the outside of the rail device.

In the vertical path section with the rail device in the vertical direction, a pinion A engages with the rack in conjunction with the motor of the self-propelled cart,
In addition to this, the J is steadily running unloaded in Taichung.

Problem to be Solved by the Invention When using the above-mentioned conventional format, when Vinyl A sings on the rack in the vertical path, the rack is pushed down by the crowd, including the load on the middle side of the self-propelled platform. I used force or fi, Ichideshide (
When the pinion comes off, the push-down force is released. However, due to this repeated action, or due to the vibration of the white running platform, the spring chain swings downward around the CS through hole. The frictional force of the mating spring link pin decreases, and this spring pin slips out to the thick side. The engagement of the pin Δn with the dowel is disturbed, causing damage (wear and tear) to the pin Δn and generating noise.

SUMMARY OF THE INVENTION An object of the present invention is to provide a rack fixing device using pins that prevents the pins from slipping out of the fixing portion.

In order to achieve the goal of 1,000 steps to solve the problem, a rack fixing device using 3C pins was invented. To fix the rack, a pin 11 is inserted from the insertion hole formed in the rack to the through hole formed in the fixing part, and this pin is located outside of the fixing part and has an enlarged diameter part on the proximal end side covering it. There is.

Effects According to the W1 structure of the present invention, the rack is fixed to the fixed part of the fixed part by first fitting the rack to the fixed part by the sliding fitting part, and then inserting the insertion hole into the through hole. Matches '
This can be done by inserting a pin 4] from the insertion hole to the through hole in this state. At that time, driving is performed so that the expanded diameter part of the pin goes from the outside of the fixing part to the outer part of the fixed part. blocked by the department.

EXAMPLES Below, examples of the present invention will be explained with reference to FIGS. 1 to 4.

1 is a rail device which is an example of a fixed part, and the mounting surface 1a
A dovetail-type fitting portion 2 is formed on the side. Reference numeral 3 denotes a rack, and a fitting part 4 is formed on the surface 3a side of the rack so that it can be slidably fitted in the longitudinal direction with respect to the fitting part 2.

At both ends (appropriate locations) in the length direction of the rack 3, one or more insertion holes 5 are formed in the height direction of the mountain part. A through hole 6 is formed in the rail device 1. Reference numeral 7 designates a roll pin, which has a slit 8 extending along its entire length at one location in the circumferential direction, and further has a wide diameter portion 7a formed on the proximal end side, and a tapered portion 7b at the proximal end. is forming.

In the above embodiment, the rack 3 is fixed to the rail device 1 in the following manner. That is, first, the fitting part 4 is fitted to the fitting part 2, and the rack 3 is slidably fitted in the length direction. Next, with the insertion hole 5 aligned with the opening hole 6, the roll pin 7 is driven from the insertion hole 5 to the opening 7-L6 from the side of the J-shaped section 7b. 1-The pin 7 is elastically reduced in diameter at FLL using the slits 1 and 8, and in this reduced diameter state, both holes 5
, 6 can be accessed. Further, the driving operation I) is performed until the enlarged diameter portion 7a is exposed from the outer body 1b of the rail device 1. Therefore, (1) after being inserted, the 1-1 pin 7 moves (comes out) to the rack 3 side.
5] To be done.

Next, an example of the use of the rail device 1 with the rack 3 fixed is shown in the fifth example.
The explanation of J3C is shown in Figure 6. rail device 1
Fi is attached to a self-propelled trolley 11 that is supported and guided via wheels 10.
! A friction drive wheel 12 is provided, and this friction drive wheel 12 is linked to the Tanabata 13.
It is 4 Gp. Δ
Then, a thick 3 is set to the rail device 1, and a pinion A 17 that engages and covers the rack 3 is attached to the output shaft 15. 18 indicates the low Y] current collection g position.

In the above embodiment, the pin Δn 1 83 is located in the vertical path section 16.
7 meshes with the rack 3, the self-propelled trolley 11 can stably move downward. When pinion A 17 meshes with Schick 3, a large downward force acts on Sick 3, including the load on the self-propelled platform 11 side, and pinion A 17 also engages with Schick 3.
7 is removed from the rack 3, the push-toe force is released 3. Therefore, due to this reversing action (or due to the vibration of the self-propelled trolley 11),
-1- The pin 7 swings downward in the V centering on the hole 6. As a result, 1 for through hole 6 and 1 for pin 7? The frictional force decreases and the roll pin 7 is pulled out toward the rack 3, but this pull-out occurs because the enlarged diameter portion 7a of the roll pin 7 is locked to the outer body 1b of the rail device 1. Since the fitting length is comfortable and there is sufficient frictional resistance between the J-type insertion hole 5 and the roll pin 7, there is no possibility of the slipping out.

In the above embodiment, the rack 3 is fixed to the rail device 1 of the load conveyance equipment, but for example, the rack 3 is fixed to the rail device 1 of the load conveying equipment. It is.

According to the tree invention of the Reno-Song 1-story composition of the invention, the fixation of the chic attached to the fixing part can be done in a manner similar to Mari 1i! ! The rack can be fixed in the height direction of the peak by fitting the knock to the fixed part using the dynamic fitting part.Next, align the insertion hole C with the through hole 8t! In this state, the length of the rack can be fixed by inserting a pin 1J into the through hole from the insertion hole. When driving the pin, the expanded diameter part of the pin is hard.
This is done until the outer surface of the foot part is exposed and covered, so that the expansion part can prevent the pin from moving toward the rack after driving. This prevents the rack from lifting up and ensures that the pinion meshes properly with the rack at all times, thereby preventing damage (wear and tear) to the pinion and reducing noise build-up.

[Brief explanation of drawings]

Figures 1 and 4 show an embodiment of the present invention, with Figure 1 being a side view of the rack, Figure 2 being a partially cutaway side view of the rack in a fixed state, and Figure 3 being a longitudinal sectional front view of the same. FIG. 4 is a perspective view of the roll pin, FIG. 5 is a side view showing an example of its use, and FIG. 6 is a plan view thereof. 1...Rail device (fixed part), 1b...Outer surface, 2...
... Mated part, 3... Rack, 4... Mating part, 5.
...Insertion hole, 6...Through hole, 7...Roll pin, 7
a... Expanded diameter part, 8... Slit, 11... Self-propelled truck, 16... Vertical path part, 17... Pinion.

Claims (1)

[Claims] 1. To fix the rack installed on the fixed part via the sliding fitting part, drive a pin from the insertion hole formed in the rack to the through hole formed in the fixed part. A rack fixing device using a pin, characterized in that an enlarged diameter portion is formed on the proximal end side located on the outside.