CN103208378B - Footswitch with safety mechanism - Google Patents

Abstract

The present invention discloses a foot switch with a safety mechanism. The foot switch includes a base, a circuit board, a pedal and a locker. The circuit board is accommodated in the base; the pedal is installed in the base; the locker is arranged adjacent to the pedal, and the pedal is electrically connected to the circuit board through the locker; wherein, when the locker and the pedal are pressed, the circuit board and the pedal are electrically connected. Thus, the pedal must be unlocked by the locker, and the circuit board and the pedal will be connected to each other to output the subsequent driving signal, thereby avoiding the occurrence of accidental touching of the foot switch, so as to improve the safety of the foot switch of the present invention.

Description

Footswitch with safety mechanism

technical field

The invention relates to a switch control structure, in particular to a foot control switch with a safety mechanism.

Background technique

In general medical equipment, hospital beds or diagnosis and treatment chairs must adjust the lifting or tilting angle to match the patient's body shape or needs, so as to make the patient comfortable. However, because doctors use both hands to operate hand tools for medical treatment, they are all equipped with a foot control switch based on the convenience of switch control and the convenience of treatment.

The traditional foot switch includes a switch box and a pedal. A switch is installed inside the switch box; the pedal has an automatic return plate. switch to transmit a driving signal. In this way, by stepping on the foot switch, the hospital bed or the diagnosis and treatment chair receives a driving signal, thereby controlling the elevation and inclination of the hospital bed or the diagnosis and treatment chair.

However, the above-mentioned foot control switch has a considerable crisis in practicality. When operators such as doctors and nurses are in a busy environment or in a state of mental distress, they often neglect the position of the foot control switch, causing the operator to use both hands. It may be still in the adjustment work, and the switch is stepped on suddenly, thus causing accidents, and even threatening the lives of patients and operators in severe cases.

Contents of the invention

An object of the present invention is to provide a foot-operated switch with a safety mechanism, which uses the pedal to be unlocked through the lock, so that the circuit board and the pedal will conduct each other to output subsequent drive signals. Furthermore, it is avoided to touch the foot switch by mistake, so as to improve the use safety of the foot switch of the present invention.

In order to achieve the above object, the present invention provides a foot switch with a safety mechanism, comprising:

a body;

a circuit board accommodated in the base;

a pedal mounted on the base; and

a locker configured adjacent to the pedal, the pedal is electrically connected to the circuit board through the locker;

Wherein, when the lock and the pedal are pressed, the circuit board and the pedal will be electrically connected.

The above-mentioned foot control switch with a safety mechanism, wherein the pedal device includes a first button and a second button, the first button and the second button are exposed on the base body, and the locker is installed on the base body And between the first button and the second button.

The above-mentioned foot control switch with a safety mechanism, wherein, the base body includes a top cover, and the center of the top cover has a protruding section, the locker includes a push button, and the press button is exposed on the protruding section, the first A button and the second button are exposed on both sides of the top cover relative to the protruding section.

The above-mentioned foot control switch with a safety mechanism, wherein the pedal device includes a first adjustment assembly and a second adjustment assembly, the first adjustment assembly includes the first button and a first touch switch connected to each other, the The second adjustment component includes the second button and a second touch switch connected to each other.

The above-mentioned foot control switch with a safety mechanism, wherein the base body includes a base and a top cover covering the base, the top cover is provided with a perforation, the first touch switch is accommodated in the base and connected to the circuit The boards are electrically connected, the first touch switch has a first reset portion, and the first button passes through the through hole and abuts against the first reset portion.

The above-mentioned foot control switch with a safety mechanism, wherein, the top cover protrudes a ring block around the perforation hole, the ring block is provided with a ring groove, the first button has a first support column and from the first support column There is a first protruding block extending around, and the first protruding block is provided with a first groove. Fitting each other.

The above-mentioned foot control switch with a safety mechanism, wherein the base body includes a base and a top cover covering the base, the top cover is provided with a perforation, the second touch switch is accommodated in the base and connected to the circuit The boards are electrically connected, the second touch switch has a second reset portion, and the second button passes through the through hole and abuts against the second reset portion.

The above-mentioned foot control switch with a safety mechanism, wherein, the top cover protrudes a ring block from the outer edge of the perforation, and the ring block is provided with a ring groove, and the second button has a second support column and supports from the second There is a second protrusion extending from the outer edge of the column, and the second protrusion is provided with a second groove, and the second supporting column passes through the through hole, and the ring block and the second protrusion pass through the ring groove and the second recess. Grooves fit together.

In the aforementioned foot control switch with a safety mechanism, the locker includes the push button and a push switch connected to each other, and the locker is exposed on the base.

The above-mentioned foot control switch with a safety mechanism, wherein the base body includes a base and a top cover covering the base, the top cover is provided with a through hole, the push switch is accommodated in the base and electrically connected to the circuit board The push switch has a return part, and the press key abuts against the return part through the through hole.

In order to achieve the above object, the present invention also provides a foot switch with a safety mechanism, including:

a body;

a circuit board accommodated in the base;

a pedal, mounted on the base;

a lock disposed adjacent to the pedal; and

a processor, the pedal and the lock are electrically connected to the circuit board through the processor;

Wherein, press the pedal to output a first trigger signal, press the lock to output a second trigger signal, when the processor receives the first trigger signal and the second trigger signal, it will make the circuit board and the pedal sexual conduction.

The above-mentioned foot control switch with a safety mechanism, wherein the pedal device includes a first button and a second button, the first button and the second button are exposed on the base body, and the locker is installed on the base body And between the first button and the second button.

The above-mentioned foot control switch with a safety mechanism, wherein, the base body includes a top cover, and the center of the top cover has a protruding section, the locker includes a push button, and the press button is exposed on the protruding section, the first A button and the second button are exposed on both sides of the top cover relative to the protruding section.

The above-mentioned foot control switch with a safety mechanism, wherein the pedal device includes a first adjustment assembly and a second adjustment assembly, the first adjustment assembly includes the first button and a first touch switch connected to each other, the The second adjustment component includes the second button and a second touch switch connected to each other.

The above-mentioned foot control switch with a safety mechanism, wherein the base body includes a base and a top cover covering the base, the top cover is provided with a perforation, the first touch switch is accommodated in the base and connected to the circuit The boards are electrically connected, the first touch switch has a first reset portion, and the first button passes through the through hole and abuts against the first reset portion.

The above-mentioned foot control switch with a safety mechanism, wherein, the top cover protrudes a ring block around the perforation hole, the ring block is provided with a ring groove, the first button has a first support column and from the first support column There is a first protruding block extending around, and the first protruding block is provided with a first groove. Fitting each other.

The above-mentioned foot control switch with a safety mechanism, wherein the base body includes a base and a top cover covering the base, the top cover is provided with a perforation, the second touch switch is accommodated in the base and connected to the circuit The boards are electrically connected, the second touch switch has a second reset portion, and the second button passes through the through hole and abuts against the second reset portion.

The above-mentioned foot control switch with a safety mechanism, wherein, the top cover protrudes a ring block from the outer edge of the perforation, and the ring block is provided with a ring groove, and the second button has a second support column and supports from the second There is a second protrusion extending from the outer edge of the column, and the second protrusion is provided with a second groove, and the second supporting column passes through the through hole, and the ring block and the second protrusion pass through the ring groove and the second recess. Grooves fit together.

In the aforementioned foot control switch with a safety mechanism, the locker includes the push button and a push switch connected to each other, and the locker is exposed on the base.

The above-mentioned foot control switch with a safety mechanism, wherein the base body includes a base and a top cover covering the base, the top cover is provided with a through hole, the push switch is accommodated in the base and electrically connected to the circuit board The push switch has a return part, and the press key abuts against the return part through the through hole.

The present invention also has the following effects:

The pedal must be unlocked through the lock, that is, the lock and the pedal must be pressed together, the circuit board and the pedal will be electrically conductive and output a driving signal to control the lift and tilt of the hospital bed or medical chair to avoid operation Personnel in a busy environment or in a state of poor spirit may accidentally touch the foot control switch, thereby improving the use safety of the foot control switch of the present invention.

In addition, the position of the pressing key is at a high position, and the positions of the first key and the second key are at a low position, so as to conform to ergonomics, so that the soles of the operator can easily step on the foot switch of the present invention; at the same time, the position of the pressing key is higher than that of the first key and the position of the second button, so it is difficult for the operator to accidentally touch the pressing button and the first button (or the second button) at the same time, to reduce the probability of accidentally touching the foot switch, so that the present invention has more safety effects.

Also, the first button and the second button will bear most of the weight of the feet, so the ring block, the first bump and the second bump are respectively ring-shaped and designed to fit with each other, which can strengthen the first button and the second button The high load capacity and the combination stability with the base make the foot switch with safety mechanism of the present invention achieve good use efficiency.

Furthermore, in another embodiment of the foot switch of the present invention, the pedal and the lock must be unlocked through the lock, and the processor is respectively pressed the lock and the pedal to receive the first trigger signal and the second trigger. Only when the signal is activated, the circuit board and the pedal will be electrically conductive and output the driving signal to control the lifting and tilting angle of the hospital bed or medical chair, so as to prevent the operator from accidentally touching the foot control in a busy environment or in a state of mental distress The situation of the switch, and then improve the use safety of the foot switch of the present invention.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

The three-dimensional exploded view of Fig. 1 foot control switch of the present invention;

The combination schematic diagram of Fig. 2 foot control switch of the present invention;

Fig. 3 is a schematic cross-sectional view of the foot switch of the present invention;

Fig. 4 is a schematic diagram of the use state of the foot-operated switch of the present invention;

Fig. 5 is a schematic diagram of another use state of the foot switch of the present invention;

The operation block diagram of Fig. 6 foot control switch of the present invention;

Fig. 7 is a schematic diagram of the use state of another embodiment of the foot switch of the present invention;

Fig. 8 is a block diagram of the operation of another embodiment of the foot switch of the present invention;

Fig. 9 is a combined schematic diagram of another embodiment of the foot switch of the present invention;

Fig. 10 is a combined schematic diagram of another embodiment of the foot switch of the present invention.

Among them, reference signs

1...seat body

11...base

12…top cover

121...Protruding section

122…Perforation

123…ring blocks

1231…ring groove

124…Through hole

2…circuit board

3…Pedals

31...first adjustment assembly

311...First button

3111…first support column

3112…first bump

3113…first groove

312...First touch switch

3121…The first reset unit

32...Second adjustment assembly

321...Second button

3211…second support column

3212…second bump

3213…second groove

322...Second touch switch

3221...Second reset unit

4…locker

41…Press the key

42…Push switch

421…Reply Department

5…gasket

6…processor

Detailed ways

The detailed description and technical content of the present invention will be described as follows with the accompanying drawings, but the attached drawings are only for illustration purposes and are not intended to limit the present invention.

Please refer to FIG. 1 to FIG. 3 , the present invention provides a foot switch with a safety mechanism. The foot switch mainly includes a base 1 , a circuit board 2 , a pedal 3 and a lock 4 .

The seat body 1 includes a base 11 and a top cover 12 covering the base 11. The top cover 12 has a protruding section 121 in the center, and the top cover 12 is provided with a plurality of perforations 122 on both sides of the protruding section 121. Each A ring block 123 protrudes from the outer edge of the through hole 122 , and the top cover 12 defines one or more through holes 124 in the protruding section 121 . In addition, the circuit board 2 is accommodated inside the base body 1 .

The pedal device 3 is mounted on the base body 1, and the pedal device 3 includes one or more first adjustment assemblies 31 and one or more second adjustment assemblies 32, and each first adjustment assembly includes a first button 311 and a first button 311 connected to each other. The first touch switch 312, each first touch switch 312 has a first reset portion 3121; each second adjustment component 32 includes a second button 321 and a second touch switch 322 connected to each other, each The second touch switch 322 has a second reset portion 3221 .

Wherein, the first button 311 and the second button 321 are exposed on the base body 1, that is, each first button 311 and each second button 321 are exposed on both sides of the top cover 12 relative to the protruding section 121, and each first button The pressure switch 312 and each second touch switch 322 are respectively accommodated in the base 11 and electrically connected to the circuit board 2; detailed description is as follows, each first button 311 has a first support column 3111 and a first support column 3111 from the first support column 3111 There is a first protrusion 3112 extending from the outer edge, and each first protrusion 3112 is provided with a first groove 3113, and each first support column 3111 is pierced with each perforation 122, so that the first button 311 passes through the perforation 122 and the first reset part 3121 abut against each other, and the ring block 123 and the first protrusion 3112 are engaged with each other through the ring groove 1231 and the first groove 3113; each second button 321 has a second support column 3211 and a second support column 3211 from the outside There is a second protrusion 3212 extending from the edge, and each second protrusion 3212 is provided with a second groove 3213, and each second support column 3211 is pierced with a perforation 122, so that the second key 321 passes through the perforation 122 and the second reset part 3221 mutually contact, and the ring block 123 and the second protrusion 3212 pass through the ring groove 1231 and the second groove 3213 to engage with each other.

The locker 4 can be one or more, so that the pedal 3 is electrically connected to the circuit board 2 through the locker 4. Each locker 4 is adjacent to the pedaler 3. The details are as follows. Each locker 4 is installed on the base body 1 And between the first key 311 and the second key 321, that is, the pressing key 41 is exposed on the protruding section 121; each lock 4 includes a pressing key 41 and a pressing switch 42 connected to each other, and the pressing key 41 is arranged on the protruding section 121. Out of the section 121, the push switch 42 is accommodated in the base 11 and electrically connected to the circuit board 2. The push switch 42 has a return portion 421, and the push key 41 abuts against each other through the through hole 124 and the return portion 421; wherein, the lock 4 And when the first button 311 is pressed, the circuit board 2 and the pedal 3 will be electrically connected.

The present invention also includes two or more spacers 5, a part of the spacers 5 are interposed between the first key 311 and the first reset part 3121, and another part of the spacers 5 are interposed between the second key 321 and the second reset part. Between Section 3221.

The present invention has a combination of foot-controlled switches with a safety mechanism, which uses a circuit board 2 to be accommodated in the base body 1; a pedal device 3 is installed in the base body 1; and a lock 4 is arranged adjacent to the pedal device 3, and the pedal device 3 passes through The locking device 4 is electrically connected to the circuit board 2; wherein, when the locking device 4 and the pedal device 3 are pressed, the circuit board 2 and the pedal device 3 will be electrically connected. In this way, the pedal 3 must be unlocked through the lock 4, that is, the lock 4 and the pedal 3 must be pressed together, and the circuit board 2 and the pedal 3 will be electrically conductive and output a driving signal to control the hospital bed or diagnosis and treatment The lifting and inclination angle of the chair can prevent the operator from accidentally touching the foot control switch in a busy environment or in a bad state of mind, thereby improving the safety of use of the foot control switch of the present invention.

Please refer to Fig. 4 to Fig. 6, the use state of the foot switch of the present invention, wherein the pedal device 3 must be unlocked by the lock device 4, the detailed description is as follows, the operator must pedal and press the button 41 of the lock device 4, Make the return part 421 downward and electrically connected with the circuit board 2, and press the first button 311 or the second button 321 together with the pedal 3, so that the first reset part 3121 or the second reset part 3221 is downward and connected with the circuit board 2. The circuit board 2 is electrically connected, and finally the circuit board 2 and the pedal device 3 are in a state of circuit conduction. At this time, the first button 311 or the second button 321 is pressed to output a driving signal to control the elevation and inclination of the hospital bed or medical chair. .

In addition, the push button 41 is arranged on the protruding section 121 in the center of the top cover 12, so that the push button 41 is at a high position, and the first button 311 and the second button 321 are at a low place, so as to conform to ergonomics and make the sole of the operator's foot It is convenient to step on the foot switch of the present invention; at the same time, the position of the pressing key 41 is higher than that of the first key 311 and the second key 321, so it is difficult for the operator to accidentally touch the pressing key 41 and the first key 311 (or the second key 311) simultaneously. button 321), to reduce the probability of touching the foot switch by mistake, so that the present invention has safety effect more.

Moreover, the first button 311 has a first support column 3111 and a first protrusion 3112 extending from the periphery of the first support column 3111, the first protrusion 3112 is provided with a first groove 3113, the ring block 123 and the first protrusion 3112 The ring groove 1231 and the first groove 3113 are engaged with each other. In this way, because the first button 311 is arranged at a lower position, the first button 311 will bear most of the weight of the feet, so the ring block 123 and the first protrusion 3112 are respectively ring-shaped and designed to fit with each other, which can strengthen the foot weight. The load-bearing capacity of the first key 311 and the combined stability with the seat body 1 enable the foot switch with a safety mechanism of the present invention to achieve good use efficiency; similarly, the second key 321 has a second support column 3211 and a self-supporting column 3211. There is a second protrusion 3212 extending around the second support column 3211, and the second protrusion 3212 is provided with a second groove 3213, and the ring block 123 and the second protrusion 3212 are fitted into each other through the ring groove 1231 and the second groove 3213 , also has the same purposes and effects as above.

Please refer to Fig. 7 to Fig. 8, another embodiment of the foot control switch of the present invention, the foot control switch of this embodiment mainly includes a base 1, a circuit board 2, a pedal 3, a lock 4 and a Processor6.

The circuit board 2 is accommodated in the base body 1; the pedal device 3 is installed on the base body 1; the locker 4 is arranged adjacent to the pedal device 3; the pedal device 3 and the locker 4 are electrically connected to the circuit board 2 through the processor 6; wherein, pressing The pedal 3 can output a first trigger signal, and pressing the lock 4 can output a second trigger signal. When the processor 6 receives the first trigger signal and the second trigger signal, the circuit board 2 and the pedal 3 will be electrically connected. .

In this way, the pedal device 3 must be unlocked through the lock device 4. The details are as follows. Press the lock device 4 and the pedal device 3 separately, for example, press the lock device 4 first, so that the lock device 4 can output a second trigger signal for processing After the device 6 receives the second trigger signal, the lock device 4 can be released, and then the first button 311 or the second button 321 of the pedal device 3 can be pressed, so that the pedal device 3 can output the first trigger signal for the processor 6 to receive. After the first trigger signal, when the processor 6 receives the first trigger signal and the second trigger signal respectively, the circuit board 2 and the pedal 3 will be electrically conducted, and the first button 311 or the second button 321 will be pressed to output the driving signal. The signals are used to control the lifting and inclination of the hospital bed or the treatment chair, so as to avoid the situation that the operator accidentally touches the foot switch in a busy environment or in a bad mood, thereby improving the safety of the foot switch of the present invention.

Please refer to FIG. 9 to FIG. 10 for other embodiments of the foot switch of the present invention, wherein the arrangement position and quantity of the pedal device 3 and the locker 4 on the base body 1 are not limited by the embodiment in FIG. 1 to FIG. 6 , The position and quantity of the pedal 3 and the lock 4 on the seat body 1 can be designed according to the actual needs of operators, users or manufacturers, as shown in Figure 7 or Figure 8, so the pedal 3 and the lock 4 are placed on the seat. The configuration position and quantity of the body 1 can be adjusted according to the actual situation, and are not limited by the accompanying drawings of the present invention.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (18)

1. A foot switch with a safety mechanism, characterized in that it comprises: A base body, the base body includes a base and a top cover covering the base, the top cover is provided with a perforation and a ring block protrudes around the perforation, and the ring block is provided with a ring groove; a circuit board accommodated in the base; A pedal, installed on the top cover, the pedal includes a first button, the first button has a first support column and extends from the first support column around a first protrusion, the first protrusion A first groove is provided, the first support column passes through the through hole, and the ring block and the first protrusion pass through the ring groove and the first groove to engage with each other; and a locker configured adjacent to the pedal, the pedal is electrically connected to the circuit board through the locker; Wherein, when the lock and the pedal are pressed, the circuit board and the pedal will be electrically connected. 2. The foot control switch with a safety mechanism according to claim 1, wherein the pedal further includes a second button, the first button and the second button are exposed on the top cover, and the locker is installed It is arranged on the top cover and between the first button and the second button. 3. The foot control switch with a safety mechanism according to claim 2, wherein the top cover has a protruding section in the center, the locker includes a push button, and the press button is exposed on the protruding section, the The first button and the second button are exposed on both sides of the top cover relative to the protruding section. 4. The foot control switch with a safety mechanism according to claim 2, wherein the pedal device includes a first adjustment assembly and a second adjustment assembly, and the first adjustment assembly includes the first buttons connected to each other and a first pressure touch switch, the second adjustment component includes the second button and a second pressure touch switch connected to each other. 5. The foot switch with a safety mechanism according to claim 4, wherein the first touch switch is accommodated in the base and is electrically connected to the circuit board, and the first touch switch has a first touch switch A resetting part, the first button passes through the through hole and the first resetting part abuts against each other. 6. The foot switch with a safety mechanism according to claim 4, wherein the top cover is provided with a through hole, the second touch switch is accommodated in the base and electrically connected to the circuit board, the first The two-touch switch has a second reset portion, and the second button passes through the through hole and abuts against the second reset portion. 7. The foot control switch with a safety mechanism according to claim 6, wherein a ring block protrudes from the outer edge of the perforation on the top cover, the ring block is provided with a ring groove, and the second button has a first Two support columns and a second protrusion extending from the outer edge of the second support column, the second protrusion is provided with a second groove, the second support column passes through the through hole, the ring block and the second protrusion The ring groove and the second groove are engaged with each other. 8 . The foot switch with a safety mechanism according to claim 3 , wherein the locking device comprises the push button and a pressing switch connected to each other, and the locking device is exposed on the base. 9. The foot switch with a safety mechanism according to claim 8, wherein the top cover is provided with a through hole, the push switch is accommodated in the base and electrically connected with the circuit board, the push switch has A return part, the pressing key abuts against each other through the through hole and the return part. 10. A foot switch with a safety mechanism, characterized in that it comprises: A base body, the base body includes a base and a top cover covering the base, the top cover is provided with a perforation and a ring block protrudes around the perforation, and the ring block is provided with a ring groove; a circuit board accommodated in the base; A pedal, installed on the top cover, the pedal includes a first button, the first button has a first support column and extends from the first support column around a first protrusion, the first protrusion A first groove is provided, the first support column passes through the through hole, and the ring block and the first protrusion pass through the ring groove and the first groove to engage with each other; a lock disposed adjacent to the pedal; and a processor, the pedal and the lock are electrically connected to the circuit board through the processor; Wherein, press the pedal to output a first trigger signal, press the lock to output a second trigger signal, when the processor receives the first trigger signal and the second trigger signal, it will make the circuit board and the pedal sexual conduction. 11. The foot control switch with a safety mechanism according to claim 10, wherein the pedal device includes a second button, the first button and the second button are exposed on the top cover, and the locker is installed On the top cover and between the first button and the second button. 12. The foot control switch with safety mechanism according to claim 11, characterized in that, the top cover has a protruding section in the center, the locker includes a push button, and the press button is exposed on the protruding section, the The first button and the second button are exposed on both sides of the top cover relative to the protruding section. 13. The foot control switch with safety mechanism according to claim 11, characterized in that, the pedal device comprises a first adjustment component and a second adjustment component, and the first adjustment component comprises the first button connected to each other and a first pressure touch switch, the second adjustment component includes the second button and a second pressure touch switch connected to each other. 14. The foot switch with a safety mechanism according to claim 13, characterized in that, the first touch switch is housed in the base and electrically connected to the circuit board, and the first touch switch has a first touch switch A resetting part, the first button passes through the through hole and the first resetting part abuts against each other. 15. The foot switch with a safety mechanism according to claim 13, wherein the top cover is provided with a through hole, the second touch switch is accommodated in the base and is electrically connected to the circuit board, the first The two-touch switch has a second reset portion, and the second button passes through the through hole and abuts against the second reset portion. 16. The foot control switch with safety mechanism according to claim 15, characterized in that, the top cover protrudes from the outer edge of the perforation with a ring block, the ring block is provided with a ring groove, and the second button has a first Two support columns and a second protrusion extending from the outer edge of the second support column, the second protrusion is provided with a second groove, the second support column passes through the through hole, the ring block and the second protrusion The ring groove and the second groove are engaged with each other. 17 . The foot control switch with a safety mechanism according to claim 12 , wherein the locker comprises the push button and a push switch connected to each other, and the locker is exposed on the base. 18 . 18. The foot control switch with a safety mechanism according to claim 17, wherein the base body includes a base and a top cover covering the base, the top cover is provided with a through hole, and the push switch accommodates On the base and electrically connected with the circuit board, the push switch has a return portion, and the push key abuts against the return portion through the through hole.