JP2007261356A - Weather strip driving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weather strip driving device in which an air hammer can be operated without pressing any press-in tool against a weather strip, and the vibration to a worker can be reduced. <P>SOLUTION: The weather strip driving device comprises an air cylinder 22 in which air passages 22j, 22k are connected to air chambers 22c, 22d with a part of a wall part having a small diameter at both ends of a cylinder chamber 22a, a piston 26 which is located at the cylinder chamber 22a in the air cylinder 22, and has a rod part 26b extending from a piston body 26a sliding in an intermediate part 22b of the cylinder chamber, and projecting outside the air cylinder 22 from one air chamber 22d, a roller part 27 which is provided on a fore end of the piston rod part 26b to guide the weather strip, and a selector valve 23 for selecting the feed of compressed air to both air passages while the other ends of the air passages 22j, 22k being connected thereto. The selector valve 23 is operated so as to alternately feed compressed air to both air chambers, and the piston 26 is oscillated in the intermediate part 22b of the cylinder chamber. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a weather strip driving device, and more particularly, to a driving device for press-fitting a weather strip that is provided between an automobile door and a vehicle body body and prevents rain or the like from entering a weather strip mounting flange portion. .

  In automobiles, the area around the door opening of the vehicle body is made of an elastic material such as rubber to prevent rainwater from entering between the door and the area around the door opening when the door is closed. A weather strip is installed.

The weather strip is attached to the vehicle by press-fitting the weather strip attachment portion into a weather strip attachment flange provided in advance around the door of the vehicle body.
The weatherstrip was attached by hitting the weatherstrip attachment part to the weatherstrip attachment flange with a rubber hammer.

A dedicated tool has also been developed, and “weather strip press-fitting tool” (International Publication No. WO01 / 075411, hereinafter referred to as Conventional Example 1) is one example.
Hereinafter, Conventional Example 1 will be described.
Conventional example 1 is: ((Claim 1) A guide member that is instructed to contact the upper end of the weather strip mounting portion is provided at the front of the tool body,
A sealer member having a pressure guide member that presses the upper surface of the weather strip mounting portion and a seal portion of the weather strip is provided at a position behind the guide member in the tool body,
A weatherstrip press-fitting tool, characterized in that a vibration imparting member is provided standing on the sealer member and imparting vibration to the sealer member. “It consists of others.

Then, as shown in FIG. 5, which is a side explanatory view showing the conventional example 1, the conventional example 1 has an air hammer 105 that functions as an air hammer (or an electric hammer) on the tip side of the press-fit tool 101. It is provided.
A sealer member 104 is attached to the tip of the air hammer 105, and is structured to be transmitted on the extension of the hammer 71 by the action of the air hammer 105. Further, the tool main body 102 is provided in a direction perpendicular to the vibration direction of the air hammer 105 from the vibrating guide roller 121 and on the traveling direction side where the weather strip 150 is driven. The tool main body 102 is fixed to the base of the air hammer 105, that is, the casing of the press-fitting tool 101, and has a structure in which the vibration of the air hammer 105 is not directly transmitted. Therefore, when the air hammer 105 vibrates, the sealer member 104 vibrates, but the guide member 103 does not vibrate.

A rotation holding member 122 is provided on the sealer member 104, and a guide roller 121 is rotatably supported on the lower portion of the holding member 122. As shown in FIG. 6, which is an explanatory diagram showing the positional relationship between the guide roller 121 and the weather strip 150, the guide roller 121 is provided with a roller 121 </ b> A that can be rotated by a rotating shaft 121 </ b> B. In FIG. 2, the weather strip 150 rotates in contact with both ends in the width direction.
A support member 112 is provided on the guide member 103 provided on the tool body 102. As shown in FIG. 7, which is an explanatory diagram showing the positional relationship between the support member 112 and the weather strip 150, the support member 112 is provided on the traveling direction side where the weather strip 150 is press-fitted. Support members 112 are provided to face each other so as to sandwich the upper portion, and balls 113 are attached to the positions of the support members 112 that are in contact with the weather strip 150 so as to be rotatable in all directions.
In Conventional Example 1 configured as described above, the attaching portion of the weather strip 150, that is, the portion to be press-fitted, is previously positioned on the flange F into which the weather strip 150 is press-fitted.

Then, the operator places the press-fitting tool 101 on the upper surface side of the weather strip 150 so that the support member 112 is at the position shown in FIG. 7 and the guide roller 121 is at the position shown in FIG. The switch of the tool 101 is turned on and the air hammer 105 is vibrated.
Then, the roller 121 </ b> A of the guide roller 121 presses and vibrates the weather strip 150 toward the flange F due to the vibration of the air hammer 105, so that the weather strip 150 is press-fitted into the flange F.
At this time, since the support member 112 supports the weather strip 150 that is not yet press-fitted into the flange F, the portion of the next weather strip 150 into which the weather strip 150 is press-fitted by the guide roller 121 is reliably positioned on the flange F. I support it.

The weather strip 150 is press-fitted into the flange F by repeating the above operations in sequence.
The air hammer 105 provided in the conventional example 1 has a structure as shown in FIG.
That is, the air hammer 105 has a hollow cover 132 attached to the lower end portion of the rod 131. In addition, hollow portions of an air hole 133 and a through hole 134 are formed in the rod 131 from the upper end in the axial direction. An air pump is connected above the air hole 133 to supply compressed air to the air hole 133. Between the air hole 133 and the through hole 134, a switching valve 135 for switching discharge of compressed air is disposed. An air chamber 136 is provided at an intermediate portion of the through hole 134 and another air passage 137 from the switching valve 135 is connected.

A vibration hammer 138 is provided below the air chamber 136 in the through hole 134 so as to be movable up and down. The lower end of the vibration hammer 138 protrudes from the opening hole 132 </ b> A of the cover 132 and is fixed to the rotation holding member 122. Therefore, when the vibration hammer 138 vibrates, the rotation holding member 122 also vibrates.
Further, a vibrator 139 for vibrating the vibration hammer 138 up and down is provided in the through hole 134, and the lower end of the vibrator 139 is in contact with the upper end of the vibration hammer 138. A bush 140 that is in contact with the rod 138 is provided in the lower portion of the through hole 134 to restrict the upper limit of the vibration hammer 138.

When the operator presses the press-fitting tool 101 against the weather strip 150, the sealer member 104 moves upward, and the vibrator 139 in contact with the vibration hammer 138 in the air hammer 105 is raised to the position of the air chamber 136. It becomes.
Next, the worker holds the grip member 106 with one hand, and puts the other hand on the guide member 103 to lightly press the guide member 103.

  When the air hammer 105 is switched on and compressed air is supplied to the air hole 133 in this state, air is supplied to the lower side of the vibrator 139 located above the air chamber 136 by the upper end of the vibration hammer 138. In addition, the air is supplied from the air hole 133 to the air chamber 136 through the air flow path 137 by the switching valve 135. Then, the vibrator 139 rises rapidly through the through hole 134 by the supplied compressed air.

Thereafter, the switching valve 135 is switched, compressed air is supplied to the through-hole 134, the vibrator 139 is rapidly lowered by the pressure of the compressed air, and collides with the vibration hammer 138 to give an impact force.
This cycle is repeated by the operation of the switching valve 135, and the vibrator 139 is suddenly moved up and down to constantly apply an impact to the upper end of the vibration hammer 138, and the sealer member 104 fixed to the lower end of the vibration hammer 138 is vibrated.
When the sealer member 104 vibrates, the vibration is transmitted to the mounting portion 151 of the weather strip 150 via the guide roller 121 and is press-fitted into the flange F.
As described above, in the first conventional example, the weather strip 150 is press-fitted into the flange F using the vibration of the air hammer 105.
Republished patent WO01 / 075411

However, in the configuration of the air hammer 105 as shown in the conventional example, the vibrator 139 collides with the upper end of the vibration hammer 138 so that the vibration hammer 138 is shocked and vibrated. There was a problem that it was difficult to work because of the large amount of vibration transmitted.
Further, since the compressed air is not supplied to the lower side of the vibrator 139 unless the vibrator 139 is positioned above the air chamber 136, the operator must press the press-fitting tool 101 against the weather strip 150. There is a problem that the pressing direction may be bent due to the impact when the pressing is coupled with a large vibration.

  Accordingly, in view of the above problems, the present invention provides a weather strip driving device capable of operating an air hammer without pressing a press-fitting tool against a weather strip and reducing vibrations to an operator.

  In this invention, as a weather strip driving device for reducing vibration transmitted from the weather strip driving device to the operator,

A hollow cylinder chamber is provided, and each end of the cylinder chamber is provided with an air chamber in which at least a part of the wall is smaller in diameter than the middle of the cylinder chamber, and one end of an air passage capable of supplying compressed air to each air chamber An air cylinder to which
A piston that is provided in an air cylinder, has a piston main body that is located in the cylinder chamber and is slidable in the middle of the cylinder chamber, and has a rod portion that extends from the piston main body and protrudes from one air chamber to the outside of the air cylinder. When,
A roller portion that is provided at the tip of the rod portion of the piston and guides the weather strip;
The other end of both air passages is connected and compressed air is supplied, and includes a switching valve capable of switching the supply of compressed air to the air passages.
The switching valve operates to alternately supply the compressed air supplied to the switching valve to each air chamber, and the piston can be vibrated in the middle of the cylinder chamber by the compressed air supplied to the air chamber. Weatherstrip driving device,

I will provide a. In this weather strip driving device, the compressed air supplied to the device is alternately supplied to the air chambers provided at both ends of the air cylinder by the switching valve, so that the piston is slid in the air cylinder and the air in the air cylinder is Vibrates between rooms. Then, the roller portion provided at the tip of the rod portion extending from the piston to the outside of the air cylinder also vibrates.
By pressing the roller portion against the weather strip, the weather strip is driven into a predetermined flange portion and attached to a predetermined position by the vibration shock of the piston.
When the air passage for supplying compressed air to one air chamber is switched, the switching valve is already in the cylinder on the air passage side with respect to the piston from the other air passage. It can function as an exhaust passage for exhausting air and can be exhausted by switching the switching valve.

  In addition, as a weather strip driving device, the weather strip driving device is composed of an air gun main body that performs the work of driving the weather strip and a controller that switches the compressed air supplied to the air gun main body.

Each of the cylinder chambers has a hollow cylinder chamber, and an air chamber in which at least a part of the wall portion is smaller in diameter than the middle portion of the cylinder chamber is provided at each end of the cylinder chamber, and an air passage capable of supplying compressed air to each air chamber. An air cylinder to which one end is connected is provided. The piston body is located in the cylinder chamber and is slidable in the middle of the cylinder chamber. The piston body extends from the one air chamber to the outside of the air cylinder. A piston with a rod part is provided, the other end of both air passages is connected, and a switching valve that can switch the supply of compressed air supplied to the air passage is provided, and a weather strip is guided at the tip of the rod part of the piston An air gun body having a roller portion to
It is connected to the switching valve of the air gun body, can supply compressed air to the air gun body, and comprises a controller having a variable pressure control valve capable of adjusting the pressure of the compressed air to be supplied,
A weatherstrip driving device characterized in that the piston can be vibrated in the middle of the cylinder chamber by compressed air supplied from a controller;

I will provide a. In this weatherstrip driving device, compressed air is supplied to the air gun main body via an air passage by a switching valve provided in the controller, and at that time, is alternately supplied to air chambers provided at both ends of the air cylinder.
Since the air gun body is alternately supplied to the air chambers provided at both ends of the air cylinder, the piston slides in the air cylinder and vibrates between the air chambers of the air cylinder. Then, the roller portion provided at the tip of the rod portion extending from the piston to the outside of the air cylinder also vibrates.
By pressing the roller portion against the weather strip as described above, the weather strip is driven into a predetermined flange portion and attached to a predetermined position by vibration impact of the piston.
Further, the compressed air supplied to the air gun body is supplied by adjusting the pressure of the compressed air to a desired value by an adjustable pressure valve capable of adjusting the pressure.
When the air passage for supplying compressed air to one air chamber is switched, the switching valve is already in the cylinder on the air passage side with respect to the piston from the other air passage. It can function as an exhaust passage for exhausting air and can be exhausted by switching the switching valve.
And in order to be able to adjust the cycle of switching by the switching valve of the compressed air supplied from the controller,

  The controller is provided with a timer that can adjust the timing of alternately supplying compressed air to both air chambers of the air gun body, and the vibration cycle of the piston can be adjusted.

  Therefore, the vibration period of the piston in the air gun body is set by setting the timer to a desired period.

Therefore, in this invention, since the rod portion for driving the weatherstrip is connected to the piston that applies vibration, unlike the impact by the vibrator, the unique effect of the present application is that vibration applied to the hand of the operator is reduced. Have.
Moreover, since the piston vibrates only by switching the supply of compressed air to the air chambers provided at both ends of the air cylinder, the hammer can be started without pressing the weather strip driving device against the weather strip. It becomes possible to set the direction to a desired direction.
Furthermore, by configuring the weatherstrip driving device as a separate unit for the air gun body and the controller, not only can the pressure of the compressed air supplied to the air gun body be adjusted, but also the pressure can be adjusted by making it a separate body. Nevertheless, the air gun body can be downsized. Furthermore, by providing the controller with a timer that can adjust the cycle of air supply switching by the switching valve, the weatherstrip driving cycle of the air gun body can be adjusted.
Accordingly, since the weather strip driving speed and driving strength can be adjusted, it is possible to handle weather strip driving made of various materials, and it is possible to handle weather strip driving that is easily broken.

  The air gun body has a grip portion so as to be substantially in the vertical direction. A cylinder part is provided at the upper end of the grip part. The cylinder part has a hollow cylindrical cylinder chamber inside. At both ends of the cylinder chamber, air chambers having a smaller diameter than the middle portion of the cylinder chamber are provided. The cylindrical surface of the air chamber has an intake / exhaust hole to which one end of the air passage is connected. The air passages connected to the intake / exhaust holes are respectively connected to the secondary side of a switching valve provided inside the air gun body.

A piston that is located in the middle of the cylinder chamber and is slidable between the air chambers at both ends is provided in the cylinder chamber of the cylinder portion. In this piston, the piston body is located in the middle of the cylinder chamber, and a rod portion that projects from one air chamber to the outside of the air cylinder extends from the piston body.
Therefore, a hole through which the rod portion of the piston protrudes outside is formed in one air chamber of the cylinder portion.

Also, a roller portion for guiding the weather strip is provided at the tip of the rod portion of the piston. The shape of the roller part is substantially the same as that of the weather strip to be driven, and a rotatable roller body is pivotally supported by the roller support part.
Furthermore, a switching valve is provided inside the air gun body. As described above, the secondary side of the switching valve is connected to the respective air chambers, and the temporary side is provided with an air gun extending from the lower part of the grip portion to the outside as a handle air passage, and a joint that can be connected to the air hose is provided at the tip. Yes.

On the other hand, the controller supplies compressed air to the cylinder portion of the air gun body.
The controller is connected to the air gun main body by a switching valve and an air hose.
This air hose consists of an air gun side air passage provided from the switching valve of the air gun body to the lower part of the grip part, and a controller side air passage extending from the controller. An air passage from the controller to the air gun body is formed.

  The compressed air supplied from the controller to the air gun body via the air passage can be switched so as to be alternately supplied to both air chambers by a switching valve provided in the air gun body. In addition, the controller includes a modulatable pressure valve that can adjust the pressure of the compressed air supplied to the air gun body.

  Further, the controller is provided with a timer capable of adjusting the timing for alternately supplying the compressed air to both air chambers of the air gun body. This timer is electrically connected so as to be able to adjust the supply cycle of electric power to the solenoid valve in order to be able to adjust the switching cycle of the switching valve composed of the solenoid valve. Therefore, since the switching cycle of the solenoid valve is adjusted by the timer, the timing for alternately supplying the compressed air to the two air chambers of the air gun body can be adjusted, and the vibration cycle of the piston can be adjusted.

  Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing Embodiment 1 of the present invention, FIG. 2 is an explanatory view showing the internal mechanism of FIG. 1 in a state where air is supplied forward, and FIG. 3 is a state where air is supplied backward. FIG. 4 is an explanatory diagram showing a pressure system and an electrical system.

1 is a weatherstrip driving device. As shown in FIG. 1, the weather strip driving device 1 includes an air gun body 2 for driving a weather strip and a controller 3 for supplying compressed air to the air gun body 2.
The air gun body 2 has a pistol shape having a grip portion 21 provided in a substantially vertical direction, and a cylinder portion 22 is provided on the upper portion of the grip portion 21. The cylinder portion 22 is an air cylinder and includes a hollow cylindrical cylinder chamber 22a as shown in FIG. The cylinder chamber 22a includes air chambers 22c and 22d having a diameter smaller than that of the intermediate portion 22b at both ends. In the rear air chamber 22c and the front air chamber 22d, air supply holes 22e and 22f through which compressed air is supplied to the cylindrical surfaces are formed.

  A switching valve 23 is provided in the grip portion 21 of the air gun body 2. The switching valve 23 is an electromagnetic switching valve, the primary side of which is connected to the primary side supply hole 25 provided in the lower part of the grip part 21 by the air passage 22i, is supplied with compressed air from the primary side supply hole 25 and is provided in the lower part of the grip part 21. It is connected to the opening hole 24, and the secondary side is connected to the two supply holes of the rear air supply hole 22e and the front air supply hole 22f by the rear air passage 22j and the front air passage 22k. Then, the switching valve 23 supplies the compressed air supplied from the primary side supply hole 25 on the primary side to one of the air supply holes 22e (or 22f) connected to the secondary side, and supplies the other compressed air. The air supply hole 22f (or 22e) side that is not supplied is opened to an open hole 24 provided in the lower part of the grip portion 21 so that the air can be discharged from the open hole 24. The switching valve 23 is electrically connected to the controller 3, and the compressed air supply is switched by operating a solenoid (not shown) in response to a signal input from the controller for the timing of the compressed air supply switching. An air hose 25a extends from the primary side supply hole 25, and an air joint 25b capable of connecting the supply hose 31 supplied from the controller 3 and the air hose 25a is provided at the tip of the air hose 25a. .

Further, a piston 26 is provided inside the cylinder chamber 22a of the cylinder portion 22 and is slidable between the rear air supply hole 22e and the front air supply hole 22f at both ends located in the intermediate portion 22b of the cylinder chamber 22a.
As for piston 26, piston main body 26a is located in intermediate part 22b of cylinder room 22a. Then, a rod portion 26b that projects from one air chamber to the outside of the air cylinder extends from the piston body 26a. Therefore, in the front air chamber 22d of the cylinder part 22, an air seal which is a hole in which the rod part 26b of the piston 26 projects to the outside on the front surface 22g of the cylinder part 22 so that the rod part 26b can slide and is air-sealed. A hole 22h is formed.

A roller portion 27 for guiding the weather strip is fixed to the tip of the rod portion 26b protruding from the air seal hole 22h.
The roller portion 27 is fixed to the rod portion 26b of the piston 2 and has a leading end that opens in a U shape. The roller portion 27 is rotatably supported between the roller base portion 27a and the opposing wall of the U shape opening of the roller base portion 27a. It consists of a main body 27b. The rotatable roller body 27b has a groove 27c having an outer shape of the weather strip to be driven, so that when the weather strip is driven, a driving force is evenly applied to the weather strip.
Further, the air gun body 2 is provided with a vibration isolator 28 for absorbing shock. The vibration isolator 28 is provided in a plate shape between the grip portion 21 and the cylinder portion 22, and absorbs an impact when the cylinder portion 22 vibrates so that the vibration is hardly transmitted to the grip portion 21 side. The vibration isolator 28 is made of a soft material such as rubber, and may be a soft foamed polymer resin or the like. The roller portion 27 is configured to be freely rotatable with respect to the sliding axis direction of the piston 2. By making the roller portion 27 rotatable in this way, even when an operator performs a weather strip mounting operation over the entire circumference of a back door (not shown) of a one-box type passenger car, Since the worker's standing position, the operator's hand angle, and the like can be freely set, the work efficiency can be improved.

  On the other hand, the controller 3 supplies the compressed air to the cylinder portion 22 of the air gun body 2. The controller 3 can supply the supply hose 31 for supplying the compressed air to the primary side of the switching valve 23 of the air gun body 22 by connecting the air hose 25a with the joint 25b. The controller 3 also has an air receiving hole 33 connected by a supply pipe 32 so as to be supplied with compressed air from a separately provided compressed air accumulator 4. Therefore, the compressed air supplied from the air receiving hole 33 is supplied from the controller 3 to the air gun body 2 via the supply hose 31.

Next, details of the controller 3 will be described.
The controller 3 is provided with a pressure regulating valve 34 inside the casing, and a pressure gauge 35 is provided on the downstream side (secondary side) of the pressure regulating valve 34.
The pressure regulating valve 34 can adjust the pressure of the compressed air on the primary side supplied from the compressed air accumulating unit 4 by an adjustment dial 36 provided on the surface of the casing of the controller 3. The pressure of the compressed air can be adjusted while checking the pressure with a pressure gauge 35 connected to the side. Further, the secondary side of the pressure regulating valve 34 is connected to a supply hose 31 connected to the outside of the casing, and can be supplied to the air gun body 2, that is, the primary side of the switching valve 23 provided in the air gun body through the pressure regulating valve 34. Configure.
As described above, the controller 3 is configured to be able to adjust the pressure of the compressed air supplied to the air gun body 2, such as a weather strip driven by the air gun body 2, a weather strip mounting portion (not shown) on the automobile body side, and the like. It can be adjusted appropriately depending on the conditions.

Further, the controller 3 is electrically connected to the air gun body 2 and can output a signal to a solenoid (not shown) of a switching valve 23 which is an electromagnetic valve provided in the air gun body 2. The switching cycle of the valve 23 is configured to be variable.
That is, the controller 3 is provided with a solenoid switching frequency setting device 37 provided in the controller 3 by receiving power from an external AC power source. The solenoid switching frequency setting device 37 is provided with a frequency setting switch 38. The frequency setting switch 38 is exposed to the outside of the housing so that the operator can operate it. The solenoid switching frequency setting device 37 is electrically connected to the switching valve 23 of the air gun body 2 and switches the solenoid provided in the switching valve 23. The solenoid switching frequency setting device 37 is a timer device, and can output a signal at a timing set by a frequency setting switch 38 connected to the solenoid switching frequency setting device 37. The timing signal output from the solenoid switching frequency setting device 37 is connected to the switching valve 23 of the air gun body 2 so as to be able to input and output signals. In this way, by providing the solenoid switching frequency setting device 37 in the controller 3, it is possible to switch the switching valve 23 of the air gun body 2 at a desired cycle, so that depending on the type, material, etc. of the weather strip attached to the automobile The period can be changed as appropriate.

  29 is an operation switch. The operation switch 26 is a push switch that is energized by a spring force and is always turned on when it is off and pressed, and is provided on the grip portion 21 of the air gun body 2 and provided at a position corresponding to the trigger portion of the pistol. . The operation switch 26 is configured to turn on / off the timing signal received from the controller 3 that outputs a signal to the switching valve 23 (the pressed state is in the ON state), and the pressure regulating valve 34 provided in the controller 3. Supply / shut off of compressed air supplied from the secondary side to the primary side of the switching valve 23 (the pressed state takes the supply state of compressed air).

Next, the operation of this embodiment will be described.
The operator operates the frequency setting switch 38 of the controller 3 to set the driving timing of the air gun body 2. This driving timing is set by time display, and is set to be a predetermined time interval, for example, an interval of 0.035 seconds. Further, the operator operates the adjustment dial 36 to adjust the pressure regulating valve 34 to adjust the weather strip driving strength of the air gun body 2 to, for example, air pressure 0.3 (Mpa). The frequency setting switch 38 and the adjustment dial 36 are provided on the surface of the controller 3.
When the predetermined setting is completed, the operator positions the roller main body 27b as shown in FIG. 3 so that the roller main body 27b of the air gun main body 2 contacts the weather strip WS to be attached.
Next, the operator presses the operation switch 26 to turn on the timing signal and supply the compressed air supplied from the controller 3 from the secondary side of the pressure regulating valve 34 to the primary side of the switching valve 23.

Then, the compressed air is supplied and the switching valve 23 is switched at a predetermined timing, and the supply path of the compressed air supplied to the cylinder chamber 22a of the cylinder portion 22 is changed to the rear air supply hole 22e and the front air supply hole 22f. Switching is performed sequentially, and compressed air is supplied sequentially.
Then, as shown in FIG. 2, when the piston main body 26a in the cylinder chamber 22a is located on the front air chamber 22d side, the switching valve 23 is switched so that compressed air is supplied from the front air supply hole 22f. Then, the compressed air is supplied from the front air supply hole 22f for a predetermined time and the rear air supply hole 22e is in an open state in which the air can be exhausted. The compressed air enters the front air chamber 22d and the piston body 26a is moved rearward by the pressure of the air. While being pushed, air on the rear side of the piston main body 26 a of the cylinder chamber 22 a is exhausted from the opening hole 24. Next, the switching valve 23 is switched at a predetermined timing, compressed air is supplied from the rear air supply hole 22e, and compressed air enters the rear air chamber 22c, and the piston body 26a is moved forward by the same action. .
This operation is performed at a cycle of a predetermined timing signal, and the piston 2 vibrates in the front-rear direction in the cylinder.
By this vibration, the roller portion 27 provided in the piston 2 presses and attaches the weather strip WS to the flange F.

  The present invention can be used in a weather strip mounting process in automobile manufacturing, and is not limited to automobiles. The weather strip mounting process in various vehicles and the mounting of weather strips to be mounted on window frames and other mechanical devices. It can be used for the process.

Explanatory drawing showing Example 1 of this invention Explanatory drawing showing the internal mechanism of FIG. 1 and showing the state by which air was supplied forward Explanatory drawing showing the state where air was supplied to the rear Explanatory drawing showing the hydraulic system and electric system of an Example Explanatory drawing showing a conventional example Explanatory drawing showing a conventional example Explanatory drawing showing a conventional example Explanatory drawing showing a conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Weather strip driving device 2 Air gun main body 21 Grip part 22 Cylinder part 22a Cylinder chamber 22b Intermediate part 22c Rear air chamber 22d Front air chamber 22e Rear air supply hole 22f Front air supply hole 22g Front surface 22h Air seal hole 22i Air passage 22j Rear air Passage 22k Front air passage 23 Switching valve 24 Open hole 25 Primary supply hole 25a Air hose 25b Air joint 26 Piston 26a Piston body 26b Rod part 27 Roller part 27a Roller base part 27b Roller body 28 Vibration isolator 29 Actuation switch 3 Controller 31 Supply hose 32 Supply pipe 33 Air receiving hole 34 Pressure regulating valve 35 Pressure gauge 36 Adjustment dial 37 Solenoid switching frequency setting device 38 Frequency setting switch 4 Compressed air accumulator

Claims (3)

A hollow cylinder chamber is provided, and each end of the cylinder chamber is provided with an air chamber in which at least a part of the wall is smaller in diameter than the middle of the cylinder chamber, and one end of an air passage capable of supplying compressed air to each air chamber An air cylinder to which
A piston that is provided in an air cylinder, has a piston main body that is located in the cylinder chamber and is slidable in the middle of the cylinder chamber, and has a rod portion that extends from the piston main body and protrudes from one air chamber to the outside of the air cylinder. When,
A roller portion that is provided at the tip of the rod portion of the piston and guides the weather strip;
The other end of both air passages is connected and compressed air is supplied, and includes a switching valve capable of switching the supply of compressed air to the air passages.
The switching valve operates to alternately supply the compressed air supplied to the switching valve to each air chamber, and the piston can be vibrated in the middle of the cylinder chamber by the compressed air supplied to the air chamber. Weatherstrip driving device. Each of the cylinder chambers has a hollow cylinder chamber, and an air chamber in which at least a part of the wall portion is smaller in diameter than the middle portion of the cylinder chamber is provided at each end of the cylinder chamber, and an air passage capable of supplying compressed air to each air chamber. An air cylinder to which one end is connected is provided. The piston body is located in the cylinder chamber and is slidable in the middle of the cylinder chamber. The piston body extends from the one air chamber to the outside of the air cylinder. A piston with a rod part is provided, the other end of both air passages is connected, and a switching valve that can switch the supply of compressed air supplied to the air passage is provided, and a weather strip is guided at the tip of the rod part of the piston An air gun body having a roller portion to
It is connected to the switching valve of the air gun body, can supply compressed air to the air gun body, and comprises a controller having a variable pressure control valve capable of adjusting the pressure of the compressed air to be supplied,
A weatherstrip driving device characterized in that a piston can be vibrated in a middle part of a cylinder chamber by compressed air supplied from a controller. The weather strip driving device according to claim 2, wherein the controller is provided with a timer capable of adjusting a timing at which compressed air is alternately supplied to both air chambers of the air gun body, and the vibration cycle of the piston can be adjusted.

Images